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Marvell World Trade Ltd patents


Recent patent applications related to Marvell World Trade Ltd. Marvell World Trade Ltd is listed as an Agent/Assignee. Note: Marvell World Trade Ltd may have other listings under different names/spellings. We're not affiliated with Marvell World Trade Ltd, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "M" | Marvell World Trade Ltd-related inventors


Selection of transmission modes in dense wireless networks

In a wireless communication network that operates according to a communication protocol that defines one or more first transmission modes that provide extended range communications as compared to one or second transmission modes defined by the communication protocol, a communication device generates a communication frame that includes information indicating that the one or more first transmission modes should not be used when transmitting in the wireless communication network. The communication device transmits the communication frame to instruct one or more other communication devices in the wireless communication network to not use the one or more first transmission modes when transmitting in the wireless communication network.. ... Marvell World Trade Ltd

Port extender with local switching

A switching system comprises a controlling switch and a plurality of port extenders. One of the port extenders includes: at least one upstream port; multiple downstream ports; and a forwarding engine. ... Marvell World Trade Ltd

Port extender with local switching

A switching system comprises a controlling switch and multiple port extenders. The controlling switch includes: a plurality of controlling switch ports; and a first packet processor having a first forwarding engine. ... Marvell World Trade Ltd

Signaling of training field length and guard interval duration

When a communication device determines that a packet (ppdu) is to use a first length of a training field and a first duration of a guard interval (gi), the communication device generates a field of the phy preamble to include a subfield set to a first value that indicates the packet uses the first length of the training field and the first duration of the gi. When the communication device determines that the ppdu is to use the first length of the training field and a second duration of the gi the communication device generates the field of the phy preamble to include i) the subfield set to the first value, ii) one or more other subfields set to one or more second values that correspond to a mode that is not permitted by a communication protocol, to indicate that the ppdu uses the first length of the training field and the second duration of the gi.. ... Marvell World Trade Ltd

Sub-channel allocation in orthogonal frequency division multiplex wlan

A first communication device allocates respective frequency sub-channels for subsequent orthogonal frequency division multiple access (ofdma) communications with two or more second communication devices, including allocating a first frequency sub-channel, a second frequency sub-channel, and a third frequency sub-channel between the first frequency sub-channel and the second frequency sub-channel. The first communication device generates and transmits a first downlink ofdma data unit configured to prompt the two or more second communication devices to transmit as part of a multi-user transmission that spans the first frequency sub-channel, the second frequency sub-channel, and the third frequency sub-channel. ... Marvell World Trade Ltd

Short training field for wifi

A communication device generates a preamble of an uplink (ul) orthogonal frequency division multiplex (ofdm) data unit, conforming to a first communication protocol, for transmission via a communication channel. Generating the preamble of the ul ofdm data unit includes: generating a first training field that conforms to a second communication protocol; generating a second training field to be included in the preamble after the first training field, wherein the second training field is generated based on a sequence that includes non-zero values spaced apart by zero values such that the non-zero values occur at an interval of eight elements in the sequence; modulating the first training field using a first tone spacing lts between adjacent ofdm tones; the first training field having a periodicity lp; and modulating the second training field using a second tone spacing equal to lts/4 between adjacent ofdm tones, the second training field has a periodicity 2*lp.. ... Marvell World Trade Ltd

Low complexity beamforming with compressed feedback

A first communication device receives a plurality of training signals from a second communication device via a communication channel. The first communication device determines, based on the plurality of training signals, a channel matrix corresponding to the communication channel, and determines, based the channel matrix and without decomposing a steering matrix, compressed feedback to be provided to the second communication device. ... Marvell World Trade Ltd

System and method for memory access token reassignment

A network device is described. The network device includes a plurality of ingress interfaces, a plurality of memory units configured to store packets received at the plurality of ingress interfaces, a first pool of memory access tokens, and one or more integrated circuits that implement a memory controller. ... Marvell World Trade Ltd

Channel quality indicator for wireline channel degradation detection

Systems and techniques relating to channel degradation detection for communication systems are described. A described system includes a processor and an interface to transmit signals and receive signals via a channel that includes a cable. ... Marvell World Trade Ltd

Methods and apparatus for fabricating ic chips with tilted patterning

The present disclosure describes methods and apparatuses for fabricating integrated-circuit (ic) die with tilted patterning. In some aspects, mandrels are fabricated on a material stack and occlude portions of a layer of material from a field of energy radiated at an angle of incidence relative to the mandrels. ... Marvell World Trade Ltd

Systems and methods for phase synchronization of local oscillator paths in oscillator-operated circuits

Embodiments described herein provide a system having phase synchronized local oscillator paths. The system includes a first circuit, which in turn includes a first counter configured to generate a first counter output signal in response to a first clock signal controlling the first counter. ... Marvell World Trade Ltd

Fabricating memory devices with optimized gate oxide thickness

The present disclosure describes apparatuses and methods for manufacturing programmable memory devices with optimized gate oxide thickness. In some aspects, lithography masks are used to fabricate oxide gates for programmable memory devices of an integrated-circuit (ic) die that are thinner than oxide gates fabricated for processor core devices of the ic die. ... Marvell World Trade Ltd

Method and apparatus for determining read-head deviation using orthogonal preambles

A storage device includes read circuitry having a read head having a detector that outputs signals representing data from a first track and an adjacent track. The read head is subject to off-track excursions during which the read head detects signals from both the first track and an adjacent track. ... Marvell World Trade Ltd

Method and apparatus for performing a fine timing measurement in a wireless network

A first wireless communication device includes a timing module to provide a timing synchronization function (tsf) time. A fine timing measurement module is to transmit a first request to perform a fine timing measurement to determine a distance between the first wireless communication device and a second wireless communication device. ... Marvell World Trade Ltd

04/19/18 / #20180109354

Systems and methods for a log-likelihood ratio based dynamic pre-processing selection scheme in a low-density parity-check decoder

Embodiments described herein provide a system for dynamically selecting a pre-processing scheme for an ldpc decoder. The system includes a receiver configured to detect transmission of a first data packet and receive a first set of data bits corresponding to a first portion of the first data packet. ... Marvell World Trade Ltd

03/29/18 / #20180091162

Systems and methods for performing phase error correction

Systems and methods for performing phase error correction are provided. A reference clock signal and a target clock signal are received. ... Marvell World Trade Ltd

03/29/18 / #20180088243

Receiver and method for operation with different satellite navigation systems

A method of determining a navigational position from satellite navigation signals includes receiving at a satellite navigation receiver a plurality of satellite navigation signals, where each respective satellite navigation signal was transmitted by a respective satellite each of which belongs to one of a plurality of satellite navigation system. Each respective satellite navigation signal transmitted by the respective satellite includes time data based on a time base of a respective satellite navigation system to which the respective satellite belongs. ... Marvell World Trade Ltd

03/22/18 / #20180084554

Spatial reuse transmissions in wlans

A first communication device in a first wireless network determines a transmit power for transmitting a first packet during a spatial reuse opportunity corresponding to a transmission in a second wireless network. Determining the transmit power includes using a spatial reuse parameter, indicative of an acceptable interference level in the second wireless network, included in a second packet transmitted by a second communication device in the second wireless network. ... Marvell World Trade Ltd

03/22/18 / #20180084501

Systems and methods for transmitting a wake-up radio signal to low power devices in a wireless communication system

Embodiments described herein provide a method for transmitting a wake-up radio signal to low power devices in a wireless local area network. Data for transmission to a wireless device is received at a wireless access point, and a wake-up radio packet is generated. ... Marvell World Trade Ltd

03/15/18 / #20180077059

Merging read requests in network device architecture

Packet data corresponding to a multicast (mc) packet received by a network device is stored in a packet memory. A header of the mc packet is analyzed to determine two or more ports via which the mc packet is to be transmitted. ... Marvell World Trade Ltd

03/15/18 / #20180076860

Uplink multi-user multiple input multiple output for wireless local area network

A first communication device transmits a first communication frame that includes scheduling information corresponding to a time period in which an uplink multi-user transmission is to occur. The scheduling information indicates a start time of the time period. ... Marvell World Trade Ltd

03/15/18 / #20180076852

Reduction of far-end crosstalk in high-speed single-ended receivers

A receiver circuit includes a source-follower input stage and a far-end crosstalk (fext) reduction circuit. The source-follower input stage is configured to receive a first signal over a first transmission line. ... Marvell World Trade Ltd

03/15/18 / #20180074960

Multi-cpu device with tracking of cache-line owner cpu

A processing apparatus includes multiple central processing units (cpus) and a coherence fabric. Respective ones of the cpus include respective local cache memories and are configured to perform memory transactions that exchange cache-lines among the local cache memories and a main memory that is shared by the multiple cpus. ... Marvell World Trade Ltd

03/15/18 / #20180074536

Class-d driven low-drop-output (ldo) regulator

Embodiments described herein provide a voltage regulator that includes an error amplifier configured to provide a difference signal indicative of a voltage difference between a reference signal and a feedback signal, a pulse width modulation generator configured to receive the difference signal and to output a pulse width modulated signal based on the difference signal, and one or more transistors configured to receive the pulse width modulated signal at a gate of the one or more transistors, and to provide the feedback signal at a drain of the one or more transistors as a regulated voltage that is adjusted to match the reference signal so as to reduce the voltage difference between the reference signal and the feedback signal.. . ... Marvell World Trade Ltd

03/08/18 / #20180070330

Multi-user ranging with unassociated stations

A first communication i) selects one or more respective preliminary identifiers (ids) for one or more second communication devices, or ii) receives one or more respective preliminary ids from one or more second communication devices, the one or more respective preliminary ids having been respectively selected by the one or more second communication devices. The first communication device generates a trigger frame, the trigger frame indicating one or more first frequency resource and/or spatial stream allocations to one or more second communication devices using the one or more respective preliminary ids. ... Marvell World Trade Ltd

03/08/18 / #20180070205

Method and apparatus for determining an angle of arrival of a wireless signal

At an antenna array of a first communication device, a wireless signal transmitted by a second communication device is received. The first communication device calculates a plurality of oversampled matched filter values corresponding to the wireless signal, which correspond to i) different values of a signal delay corresponding to the wireless signal, and ii) different values of a phase corresponding to the wireless signal. ... Marvell World Trade Ltd

03/08/18 / #20180069734

Systems and methods for performing multi-level coding in a discrete multitone modulation communication system

Embodiments described herein provide a method for performing multi-level coding in a discrete multitone modulation (dmt) communication system. A plurality of data bits are divided into a first number of un-encoded bits and a set of bits to be encoded. ... Marvell World Trade Ltd

03/08/18 / #20180069688

Methods and apparatus for performing full-duplex communications using a g.hn protocol

Methods and apparatus for performing full-duplex communications using a g.hn protocol are provided. A second node of a plurality of nodes is selected, by a first node with which to engage in full-duplex communications. ... Marvell World Trade Ltd

03/08/18 / #20180069687

Method and apparatus for full-duplex operation in a multipoint-to-multipoint network

A method of conducting full-duplex transmission between first and second nodes in a communications system having more than two nodes includes the issuing of a start signal on a channel by the first node, wherein the start signal signals that full-duplex transmission is to begin, and identifies the second node as a node with which full-duplex communication is to occur. The method also includes, following the issuing of the start signal, the beginning of full-duplex transmission by the first and second nodes. ... Marvell World Trade Ltd

03/08/18 / #20180069595

Systems and methods for echo or interference cancellation power-saving management in a communication system

Embodiments described herein provide echo cancellation power saving management at a cable transceiver. An echo response signal having a first number of signal components is obtained, via an echo cancellation filter. ... Marvell World Trade Ltd

03/08/18 / #20180068921

Methods and apparatus for self-alignment of integrated circuit dies

The present disclosure describes apparatuses and techniques for self-aligning integrated circuit (ic) dies. In some aspects, a hydrophobic material is deposited on a surface of a substrate to form a pattern on the surface of the substrate. ... Marvell World Trade Ltd

03/01/18 / #20180062939

Method and apparatus of remote configuration and management of wireless nodes

Systems and techniques relating to wireless networking systems and techniques, namely remotely managing, configuring, visualizing, and interacting with wireless nodes, include: determining a transport medium usable for communication of a discovery message via a wireless network, wherein the discovery message is formatted according to a protocol; transmitting one or more discovery messages using the determined transport medium; receiving one or more response messages associated with the one or more discovery messages, wherein each of the one or more response messages includes (i) information indicating the wireless association, wherein the wireless association is between a wireless device corresponding to the response message and at least one other wireless device accessible via the wireless network, and (ii) triangulation parameters; and determining a network topology of the wireless network based on the one or more response messages.. . ... Marvell World Trade Ltd

03/01/18 / #20180062899

High efficiency orthogonal frequency division multiplexing (ofdm) physical layer (phy)

A communication device determines that an extension field should be included in physical layer (phy) data unit to provide a receiver with more processing time to process data included in the phy data unit, wherein the extension field is not required to be processed by the receiver. The communication device generates i) a phy preamble of the phy data unit, and ii) a phy data portion of the phy data unit, the phy data unit conforming to a first communication protocol. ... Marvell World Trade Ltd

03/01/18 / #20180060160

Low-latency decoder for reed solomon codes

A decoder includes a syndrome calculator, a key equation solver (kes) and an error corrector. The syndrome calculator is configured to receive an n-symbol code word encoded using a reed solomon (rs) code to include (n−k) redundancy symbols, and to calculate for the code word 2t syndromes si, t=(n−k)/2 is a maximal number of correctable erroneous symbols. ... Marvell World Trade Ltd

02/15/18 / #20180048740

Physical layer frame format for wlan

A first communication device generates a physical layer (phy) preamble for a phy data unit to be transmitted via a communication channel, the phy data unit conforming to a first communication protocol. Generating the phy preamble includes generating a legacy portion of the phy preamble to include a legacy signal field, which is decodable by one or more second communication devices that conform to a second communication protocol to determine a duration of the phy data unit. ... Marvell World Trade Ltd

02/08/18 / #20180041263

Sub-band feedback for beamforming on downlink multiple user mimo configurations

A first communication device receives a sounding packet that was transmitted by a second communication device over a communication channel, and performs a channel estimation on a subchannel block of the communication channel to determine steering matrix feedback information for the subchannel block. The subchannel block spans a contiguous partial bandwidth of the communication channel and does not span an entire bandwidth of the communication channel. ... Marvell World Trade Ltd

01/25/18 / #20180026860

Time efficient counters and meters architecture

A meter module for use in a network device comprises conformance circuitry configured to: access a first memory device storing a conformance indicator that indicates whether a permitted rate of packet traffic has been exceeded, and classify packets received at the network device based at least in part on the conformance indicator. Sampling circuitry is configured to, responsively to the conformance circuitry classifying the packets: sample events associated with at least some of the received packets, and generate indicators of the sampled events. ... Marvell World Trade Ltd

01/11/18 / #20180013527

Downlink signaling in a high efficiency wireless local area network (wlan)

A method for generating a physical layer (phy) data unit includes generating a first signal field to include multiple copies of first signal field content, wherein the first signal field content spans one sub-band of a plurality of sub-bands of the phy data unit, and wherein the multiple copies collectively span the plurality of sub-bands of the phy data unit; generating a second signal field to include multiple copies of second signal field content, wherein the second signal field content spans multiple ones of the plurality of sub-bands of the phy data unit, and wherein the multiple copies of the second signal field collectively span the plurality of sub-bands of the phy data unit; generating a preamble of the phy data unit to include at least the first signal field and the second signal field; generating the phy data unit to include at least the preamble.. . ... Marvell World Trade Ltd

01/04/18 / #20180006860

Compressed orthogonal frequency division multiplexing (ofdm) symbols in a wireless communication system

A boundary within a last orthogonal frequency division multiplexing (ofdm) symbol of a phy data unit is determined. Pre-encoder padding bits are added to a set of information bits to generate a set of padded information bits such that the set of padded information bits, after being encoded, fill one or more ofdm symbols up to the boundary within the last ofdm symbol. ... Marvell World Trade Ltd

12/21/17 / #20170366376

Analog fractional-n phase-locked loop

An analog fractional-n phase-locked loop includes an oscillator loop having a reference input, a feedback input, and a loop output, and a fractional feedback divider configured to divide signals on the loop output by a divisor. Output of the fractional feedback divider is fed back to the feedback input. ... Marvell World Trade Ltd

12/21/17 / #20170366329

Channel bonding design and signaling in wireless communications

Systems and techniques relating to wireless communications are described. A transmitter for a wireless local area network (wlan) identifies a channel bonding mode out of a number of channel bonding modes. ... Marvell World Trade Ltd

12/21/17 / #20170366312

Method and apparatus for mu resource request

Aspects of the disclosure provide an apparatus for wireless communication. The apparatus includes a transceiver and a processing circuit. ... Marvell World Trade Ltd

12/21/17 / #20170366301

Method and apparatus for transmission

Aspects of the disclosure provide an apparatus that includes a transceiver circuit and a processing circuit. The transceiver circuit is configured to receive a trigger signal this is transmitted by another apparatus. ... Marvell World Trade Ltd

12/21/17 / #20170366191

Multiplying delay-locked loop using sampling time-to-digital converter

A multiplying delay-locked loop circuit includes a delay chain including a plurality of variable delay circuits connected in series and having a delay chain output, and a feedback loop including circuitry for deriving a digital control signal representing magnitude and sign of phase offset in the delay chain output, for controlling delay in ones of the variable delay circuits. The circuitry for deriving a digital control signal includes a sampling time-to-digital converter (stdc) configured to operate on a time delay between inputs to generate the digital control signal. ... Marvell World Trade Ltd

12/21/17 / #20170365332

Ring oscillator built from sram cells interconnected via standard cell-interface

An integrated circuit (ic) includes a memory, circuit interconnections and control logic. The memory includes multiple standard-library static random access memory (sram) cells disposed on a substrate of the ic in multiple first layers, so that access to a respective sram cell to read and write data is through a cell-interface. ... Marvell World Trade Ltd

12/07/17 / #20170351802

Integrated circuit manufacturing process for aligning threshold voltages of transistors

In some implementations, a method of fabricating an integrated circuit includes obtaining first data for a first chip containing a first version of the integrated circuit, determining that a transistor should be coupled with another transistor, selecting one or more masks for coupling the transistor with the other transistor to adjust the threshold voltage of the transistor, obtaining second data for a second chip containing a second version of the integrated circuit, determining that the second version of the integrated circuit meets one or more requirements, and preparing a final integrated circuit design for production based on the second version of the integrated circuit.. . ... Marvell World Trade Ltd

11/30/17 / #20170346536

Uplink training for mimo implicit beamforming

A first communication device determines that a second communication device is capable of using a transparent implicit beamforming technique to determine steering matrices for transmitting to the first communication device via a forward multiple input multiple output (mimo) communication channel. In response to determining that the second communication device is capable of using the transparent implicit beamforming technique, the first communication device transmits at least a certain number of data units to the second communication device using a maximum number of spatial streams during a time period of a certain duration when the first communication device is otherwise using less than the maximum number of spatial streams to transmit other data units to the second communication device. ... Marvell World Trade Ltd

11/30/17 / #20170344276

Caching systems and methods for hard disk drives and hybrid drives

A system includes a read/write module and a caching module. The read/write module is configured to access a first portion of a recording surface of a rotating storage device. ... Marvell World Trade Ltd

11/23/17 / #20170338914

Transmitter defragmentation for data unit fragments

A first medium access control (mac) service data unit (msdu), intended for a communication device of multiple communication devices, is divided into a plurality of fragments. First and second groups of mac protocol data units (mpdus) intended for the multiple communication devices are generated and one or more transceivers are controlled to transmit first and second orthogonal frequency division multiple access data units that include the first and second groups, respectively, to the multiple communication devices. ... Marvell World Trade Ltd

11/23/17 / #20170338867

Group acknowledgement for multiple user communication in a wireless local area network

A first communication device receives plurality of uplink data units simultaneously transmitted by multiple second communication devices, and generates an acknowledgement data unit to acknowledge receipt of the plurality of uplink data units. Each of at least some of a plurality of acknowledgment fields includes: a first field that includes an indicator of a corresponding one of the second communication devices, a second field that indicates whether the acknowledgment field corresponds to i) an acknowledgment corresponding to a single data unit, or ii) a block acknowledgment corresponding to multiple data units, wherein when the second field that indicates a block acknowledgment, the acknowledgment field further includes a third field having a bitmap that indicates which data units in the group are being acknowledged, and wherein when the second field that indicates acknowledgment of a single data unit, the acknowledgment field does not include the third field.. ... Marvell World Trade Ltd

11/23/17 / #20170337127

Method and apparatus for mapping logical addresses between memories of a solid-state disk based on write frequency rankings

A solid-state disk including first and second memories and a wear leveling module. The second memory has a lower write cycle lifetime than the first memory. ... Marvell World Trade Ltd

11/09/17 / #20170325233

Orthogonal frequency division multiple access for wireless local area network

A communication device assigns a plurality of different orthogonal frequency division multiplex (ofdm) tone blocks for a wireless local area network (wlan) communication channel to a plurality of devices. At least a first assigned ofdm tone block has a first frequency bandwidth that is less than a smallest bandwidth of a legacy wlan communication protocol. ... Marvell World Trade Ltd

10/26/17 / #20170311302

Systems and methods for transmitting packets in sub-1ghz frequency bands

A system includes a packet generator, a preamble generator, and a modulator. The packet generator generates a packet including a preamble for transmission via a sub-1 ghz channel. ... Marvell World Trade Ltd

10/26/17 / #20170310515

Range extension mode for wifi

A communication device generates a transmission signal for transmission via a wireless communication channel, wherein the transmission signal corresponds to a physical layer (phy) data unit that conforms to a range extension mode of a first communication protocol. Generating the phy data unit includes generating a preamble of a phy data unit, wherein the preamble is generated to include: a legacy signal field that includes information indicating a duration of the phy data unit, a duplicate of the legacy signal field, a plurality of subfields of a non-legacy signal field, and a plurality of additional subfields with the same data as the plurality of subfields of the non-legacy signal field. ... Marvell World Trade Ltd

10/26/17 / #20170310514

Range extension mode for wifi

A communication device encodes a plurality of information bits to generate a plurality of encoded bits, and maps the plurality of encoded bits to a plurality of constellation symbols, including mapping each bit to multiple constellation symbols. The communication device generates a plurality of orthogonal frequency division multiplexing (ofdm) symbols corresponding to a physical layer (phy) data unit using the plurality of constellation symbols, wherein the ofdm symbols are generated such that: the ofdm symbols have a tone spacing that is ¼ of a tone spacing of a legacy wireless communication protocol, and the ofdm symbols span only a subband of a 20 mhz communication channel. ... Marvell World Trade Ltd

10/26/17 / #20170310504

Channel description feedback in a communication system

A first communication device receives a plurality of training signal fields in a preamble of a data unit transmitted by a second communication device, the plurality of training signal fields in orthogonal frequency division multiplexing (ofdm) symbols comprising data and pilot tones. The first communication device determines first channel estimate data corresponding to the data tones in the ofdm symbols, and uses pilot tones in the plurality of training signal fields to track at least one of i) a phase offset and ii) a frequency offset while receiving the plurality of training signal fields to improve the first channel estimate data. ... Marvell World Trade Ltd

10/12/17 / #20170295571

Reporting bandwidth capability of a bandwidth-limited communication device

A first communication device generates a first physical layer (phy) data unit that includes information indicating a capability to use a channel bandwidth greater than a maximum channel bandwidth of the first communication device, and transmits the first phy data unit to a second communication device during an association process with the second communication device. The first communication device generates a second phy data unit that includes information indicating a capability to use at most the maximum channel bandwidth of the first communication device, and transmits the second phy data unit to the second communication device when the first communication device is associated with the second communication device.. ... Marvell World Trade Ltd

10/12/17 / #20170295049

Dual carrier modulation that mitigates papr

A communication device maps a plurality of bits to a first set of transmission symbols corresponding to a first set of subcarriers within a component communication channel. Transmission symbols among the first set of transmission symbols correspond to respective subsets of one or more bits, and transmission symbols among the first set of transmission symbols are single carrier transmission symbols. ... Marvell World Trade Ltd

10/12/17 / #20170294992

Uplink multi-user transmission

A method for transmitting a subchannel availability for an uplink (ul) multi-user (mu) transmission is described. An availability of one or more subchannels of an orthogonal frequency division multiplex (ofdm) channel are determined by a first communication device for the ul mu transmission. ... Marvell World Trade Ltd

10/05/17 / #20170288829

Tone reordering in a wireless communication system

One or more ldpc encoders generate two or more ldpc code words to be included entirely in an ofdm symbol. A frequency segment parser parses content of the two or more ldpc code words into a first frequency segment corresponding to a first subband of the communication channel and a second frequency segment corresponding to a second subband of the communication channel. ... Marvell World Trade Ltd

10/05/17 / #20170286363

Methods and systems for accessing host memory through non-volatile memory over fabric bridging with direct target access

Embodiments described herein provide a method for accessing a host memory through non-volatile memory over fabric bridging with direct target access. A first memory access command encapsulated in a first network packet is received at a memory interface unit and from a remote direct memory access (rdma) interface and via a network fabric. ... Marvell World Trade Ltd

09/28/17 / #20170280343

Methods and apparatus for clock drift mitigation with snoop-based ranging

A first communication device generates a range measurement packet (or a packet that includes a probe response frame, a tim frame, etc.) associated with a range measurement signal exchange session between the first communication device and a second communication device. The first communication device records a time value of a first timer corresponding to a time of transmission of the packet, and includes timing information corresponding to the recorded time value in the packet. ... Marvell World Trade Ltd

09/28/17 / #20170276469

Systems and methods for high precision cable length measurement in a communication system

Embodiments described herein provide a system for cable length measurement in a communication system. The system includes a transmitter, a receiver, a signal sampler and a cable length calculation unit. ... Marvell World Trade Ltd

09/07/17 / #20170257189

Multiple traffic class data aggregation in a wireless local area network

A first communication device receives an aggregated data unit from a second communication device. The aggregated data unit aggregates (i) one or more sets of multiple data units, each set of multiple data units to be acknowledged by a respective block acknowledgement and (ii) one or more single data units, each single data unit to be acknowledged by a respective single acknowledgement. ... Marvell World Trade Ltd

09/07/17 / #20170255395

Dram controller with adaptive precharge policy

A dynamic random access memory (dram) controller includes a memory interface and a processor. The memory interface is configured to communicate with a dram including one or more memory banks. ... Marvell World Trade Ltd

08/31/17 / #20170250785

Physical layer frame format for wlan

A preamble of a physical layer (phy) data unit that conforms to a first communication protocol is generated. The preamble includes a legacy field that is formatted according to a second communication protocol, and a signal field having a first orthogonal frequency division multiplexing (ofdm) symbol and a second ofdm symbol. ... Marvell World Trade Ltd

08/31/17 / #20170250702

Charge-sharing and charge-redistribution dac and method for successive approximation analog-to-digital converters

A hybrid digital-to-analog converter including a charge-sharing digital-to-analog converter and a charge redistribution digital-to-analog converter is provided. The charge-sharing digital-to-analog converter is configured to receive a digital input signal having multiple bits. ... Marvell World Trade Ltd

08/24/17 / #20170244531

Acknowledgement of transmissions in a wireless local area network

A first communication device receives a physical layer (phy) data unit from a second communication device. The phy data unit includes multiple medium access control (mac) data units aggregated in an aggregate mac data unit. ... Marvell World Trade Ltd

08/03/17 / #20170223730

Methods and apparatus for adaptive channel access

A communication device determines, in connection with a prior uplink multi-user (ul mu) communication in which the communication device participated, whether the communication device is to use one or more first channel access parameters, or one or more second channel access parameters for accessing a communication medium for a single user (su) transmission by the communication device, where using the one or more first channel access parameters is associated with a greater probability of obtaining access to the communication medium as compared to using the one or more second channel access parameters. Depending on the determination made, the communication device uses the one or more first channel access parameters, or the one or more second channel access parameters to attempt to access the communication medium. ... Marvell World Trade Ltd

08/03/17 / #20170222827

Network devices for scalable point to multipoint networks

The present disclosure includes systems and techniques relating to point-to-multipoint (p2mp) communication networks and g.hn networking standards used therewith. In some implementations, the system includes a domain master (dm) network device and one or more network devices. ... Marvell World Trade Ltd

08/03/17 / #20170222792

Method and apparatus for network synchronization

A network device includes a packet processor, a plurality of interface circuits, a phase-locked loop (pll) circuit and a configuration controller. The interface circuits are configured to transmit and receive signals to/from other devices that are coupled to the network device. ... Marvell World Trade Ltd

08/03/17 / #20170220298

Methods and apparatus for storing data to a solid state storage device based on data classification

Systems and methods for storing data to a non-volatile storage device are provided. A request to store data to the storage device at a given address corresponding to one of a plurality of regions of the storage device is received. ... Marvell World Trade Ltd

07/27/17 / #20170215104

Null data packet format for long range wlan

A communication device determines a physical layer (phy) mode according to which a null data packet (ndp) is to be transmitted, the determined phy mode from a set of phy modes defined by a communication protocol, the set of phy modes including i) a first phy mode and ii) a second phy mode. When it is determined that the ndp is to be transmitted according to the first phy mode, the communication device generates the ndp according to a first phy format, including generating a phy preamble of the ndp according to a first preamble format. ... Marvell World Trade Ltd

07/20/17 / #20170205772

All-digital phase locked loop (adpll) including a digital-to-time converter (dtc) and a sampling time-to-digital converter (tdc)

A digital phase locked loop (dpll) circuit includes a digital-to-time converter (dtc) configured to generate a delayed reference clock signal by delaying a reference clock signal according to a delay control signal and a time-to-digital converter (tdc) coupled to an output of the dtc. The tdc is configured to sample a value of a transition signal according to the delayed reference clock signal and to generate an output signal indicating a phase difference between the delayed clock signal and an input clock signal. ... Marvell World Trade Ltd

07/06/17 / #20170194945

Clock gated flip-flop

Aspects of the disclosure provide a data storage circuit. The data storage circuit includes a first latch, a second latch, and a clock gating and buffer circuit. ... Marvell World Trade Ltd

07/06/17 / #20170192492

Method and apparatus for saving power

Aspects of the disclosure provide a circuit that includes processing circuits and a power mode control circuit. The processing circuits are configured to have at least a first power saving mode and a second power saving mode having different power saving efficiency under different scenarios. ... Marvell World Trade Ltd

06/29/17 / #20170187613

Network discovery apparatus

A network device has a packet input unit, a checking unit, and a discovery unit. The packet input unit is configured to receive ingress packets. ... Marvell World Trade Ltd

06/29/17 / #20170187436

Beamforming using predefined spatial mapping matrices

In one or more aspects data packets are transmitted to a receiver using predefined spatial mapping matrices, a quality of reception is received from the receiver for each of the predefined spatial mapping matrices, and one of the predefined spatial mapping matrices is selected for transmitting additional data packets to the receiver based on a highest quality of reception.. . ... Marvell World Trade Ltd

06/22/17 / #20170181181

Termination of wireless communication uplnk periods to facilitate reception of other wireless communications

The present disclosure describes systems and techniques relating to wireless communications. A described system includes a first radio configured to wirelessly transmit to a first station in accordance with a first wireless communication technology via uplink periods that are scheduled by the first station; a second radio configured to wirelessly communicate with a second station in accordance with a second wireless communication technology; and a controller coupled with the first and second radios, the controller being configured to select for puncturing one or more of the uplink periods based on information about types of data to be transmitted respectively in the uplink periods, puncture, independently of the first station, the one or more selected uplink periods by causing the first radio to terminate transmissions to the first station during the selected uplink period(s), and cause the second radio to receive data from the second station during the selected uplink period(s).. ... Marvell World Trade Ltd

06/22/17 / #20170180161

Channel quality indicator for wireline channel degradation detection

Systems and techniques relating to channel degradation detection for communication systems are described. A described system includes an interface to transmit signals and receive signals via a channel that includes a cable; an echo canceller coupled with the interface, the echo canceller to perform echo cancellation based on echo tap values to remove portions of the transmitted signals that appear as echoes within the received signals; an equalizer coupled with the interface, the equalizer to perform signal equalization based on equalizer tap values, the equalizer tap values being determined based on at least a portion of the received signals to adjust an impulse response of the channel and reduce inter-symbol interference within the received signals; and circuitry configured to determine a return loss channel quality indicator of the channel based on the echo tap values, determine an insertion loss channel quality indicator of the channel based on the equalizer tap values, or both.. ... Marvell World Trade Ltd

06/22/17 / #20170180156

Interconnected ring network in a multi-processor system

In various embodiments, the present disclosure provides a system comprising a first plurality of processing cores, ones of the first plurality of processing cores coupled to a respective core interface module among a first plurality of core interface modules, the first plurality of core interface modules configured to be coupled to form in a first ring network of processing cores; a second plurality of processing cores, ones of the second plurality of processing cores coupled to a respective core interface module among a second plurality of core interface modules, the second plurality of core interface modules configured to be coupled to form a second ring network of processing cores; a first global interface module to form an interface between the first ring network and a third ring network; and a second global interface module to form an interface between the second ring network and the third ring network.. . ... Marvell World Trade Ltd

06/22/17 / #20170177481

Method and apparatus for accessing data stored in a storage system that includes both a final level of cache and a main memory

A data access system including a processor and a storage system including a main memory and a cache module. The cache module includes a flc controller and a cache. ... Marvell World Trade Ltd

06/15/17 / #20170171869

Systems and methods for providing resource signaling within a wireless local area network (wlan)

Embodiments described herein provide a method for resource unit signaling with reduced data bits in a wireless local area network. At a wireless transceiver, a data frame may be obtained for transmission. ... Marvell World Trade Ltd

06/15/17 / #20170171363

Signal field encoding in a high efficiency wireless local area network (wlan) data unit

In a method of generating a field of a physical layer (phy) preamble of a data unit, information bits to be included in the field are generated. Respective sets of tail bits are appended after respective sets of information bits corresponding to respective ones of a plurality of groups of subfields of the field, each group including one or more of the subfields of the field, to generate an encoder input bit stream. ... Marvell World Trade Ltd

06/15/17 / #20170170932

Triggered uplink transmissions in wireless local area networks

In a method for communicating in a wireless communication network a trigger frame is generated to trigger simultaneous uplink transmissions by multiple communication devices. The trigger frame includes a padding portion having a length determined based on respective time duration requirements of the multiple communication devices, the respective time duration requirements for preparing uplink transmission by the corresponding second communication devices. ... Marvell World Trade Ltd

06/15/17 / #20170170162

Integrated circuit having spare circuit cells

Aspects of the disclosure include an integrated circuit that includes a plurality of functional circuit cells and a plurality of inactive spare functional circuit cells. Ones of the functional circuit cells respectively includes a set of first electrically interconnected transistors that define a first logic component and a first power rail configured to carry a first supply voltage. ... Marvell World Trade Ltd

06/15/17 / #20170168895

Queuing of decoding tasks according to priority in nand flash controller

Apparatus, for performing decoding tasks in a nand flash memory controller, includes a first task queue for queuing decoding tasks of a first priority, a second task queue for queuing decoding tasks of a second priority higher than the first priority, and control circuitry that, on receipt of portions of data for a plurality of decoding tasks, releases, from the first and second task queues, respective decoding tasks to operate on respective portions of data, according to priorities of the decoding tasks. First and second decoders operate under first and second decoding schemes that differ in speed or complexity. ... Marvell World Trade Ltd

06/08/17 / #20170163777

Trigger-based single user uplink transmission

A first communication device receives, from a second communication device, a trigger frame. The first communication device generates a single-user (su) physical layer (phy) protocol data unit that includes a phy protocol payload, wherein the phy protocol payload include information other than information that acknowledges a previous transmission from the second communication device. ... Marvell World Trade Ltd

06/08/17 / #20170160763

Low-power pulsed bandgap reference

An electronic circuit includes a bandgap circuit, a capacitor, a switch and a control circuit. The bandgap circuit is configured to generate a predefined reference voltage. ... Marvell World Trade Ltd

06/01/17 / #20170155586

Systems and methods for implementing a time-stamped controller area network (can) bus message

Systems, methods, and apparatuses are provided herein for time-stamping a controller area network (“can”) bus message. Control circuitry (e.g., of a network bridge) may receive a can message, and may, in response to receiving the can message, generate a time stamp. ... Marvell World Trade Ltd

06/01/17 / #20170155585

Control message routing structure for a controller area network

Systems and methods are provided for routing a message in a network. A bit length of an identifier field of a received message is identified. ... Marvell World Trade Ltd

06/01/17 / #20170155584

Systems and methods for implementing a switched controller area network

Systems, methods, and apparatuses are described herein for implementing a switched controller area network (“can”). In some embodiments, control circuitry of a bridge may receive a can message. ... Marvell World Trade Ltd

06/01/17 / #20170155378

Apparatus and method for activating circuits

Aspects of the disclosure include an apparatus that has a first clock generator and a second clock generator. The first clock generator is configured to drive a first circuit, causing the first circuit to (i) receive a signal corresponding to an audio input, and (ii) determine whether an energy level of the signal exceeds a predetermined threshold. ... Marvell World Trade Ltd

06/01/17 / #20170154010

Systems and methods for transmitting an access request via a flexible register access bus

Some embodiments described herein provide a method for transmitting an access request via a flexible register access bus. An access request may be received to access resource on an integrated circuit. ... Marvell World Trade Ltd

05/18/17 / #20170139773

Systems and methods for managing address-mapping data in memory devices

Methods, apparatuses, and data storage devices are provided. Address-mapping data is compressed. ... Marvell World Trade Ltd

05/11/17 / #20170133358

Methods and systems to improve yield in multiple chips integration processes

The present disclosure includes systems and techniques relating to methods and systems that improve yield in multiple chips integration processes. In some implementations, a method includes providing, in a chamber, a first integrated circuit chip and a second integrated circuit chip supported on a carrier, flowing a molding compound to cover the first integrated circuit chip, the second integrated circuit chip, and the carrier; and flowing a forming gas into the chamber while curing the molding compound.. ... Marvell World Trade Ltd

05/04/17 / #20170125334

Packaging arrangements including high density interconnect bridge

Embodiments provide a packaging arrangement that includes a high density interconnect bridge for interconnecting dies within the packaging arrangement. The packaging arrangement comprises one or more redistribution layers and an interconnect bridge embedded within the one or more redistribution layers. ... Marvell World Trade Ltd

04/27/17 / #20170118725

Backoff operation in connection with spatial reuse

A communication device receives a signal during a backoff period of a backoff procedure, wherein the communication device is part of a first communication network. In response to determining that i) the signal is valid, ii) the signal is from another communication network, and iii) the power level of the signal does not meet a threshold that is higher than a default threshold, the communication device continues a count of a backoff timer during reception of the signal. ... Marvell World Trade Ltd

04/27/17 / #20170118315

Structure for low-power-low-rate data transmission

Embodiments described herein provides a system for detecting data received in a low power low rate (lplr) data frame format. The system includes a receiver and control circuitry. ... Marvell World Trade Ltd

04/27/17 / #20170118050

Systems and methods for detecting data in a received multiple-input-multiple-output (mimo) signal

Systems and methods for detecting data in a received multiple-input-multiple-output signal are provided. N signals are received from n antennas, with m being greater than or equal to three. ... Marvell World Trade Ltd

04/27/17 / #20170118000

Acknowledgment of uplink orthogonal frequency division multiple access transmission

A first communication device receives an uplink orthogonal frequency multiple access (ofdma) transmission. The uplink ofdma transmission includes respective transmissions from multiple second communication devices, and the respective transmissions from the multiple second communication devices include indications of respective acknowledgment policies corresponding to the respective transmissions from the multiple second communication devices. ... Marvell World Trade Ltd

04/27/17 / #20170117944

Systems and methods for detecting data in a received multiple-input-multiple-output (mimo) signal

Systems and methods for detecting data in a received multiple-input-multiple-output signal are provided. N signals are received from n respective antennas, where the received signals are associated with (i) m sets of data values, (ii) a set of symbols, and (iii) a set of carrier frequencies. ... Marvell World Trade Ltd

04/27/17 / #20170115684

Switched-capcitor bandgap reference circuit using chopping technique

A method includes providing a first voltage to a first output node during a first time interval, providing a second voltage to the first output node during a second time interval, and averaging the first and second voltages to provide a reference voltage to a second output node. The first voltage includes a proportional-to-absolute-temperature (ptat) component, a complementary-to-absolute-temperature (ctat) component, and a first residual offset component. ... Marvell World Trade Ltd

04/27/17 / #20170115350

System and method for establishing a trusted diagnosis/debugging agent over a closed commodity device

Systems, devices, and techniques relating to remote debugging are described. A described device includes a first processor core configured to provide an application execution environment, memory coupled with the first processor core; a second processor core configured to provide a secure execution environment; and a communication interface coupled with the first processor core and the second processor core, the communication interface being configured to communicate with external devices, the communication interface being shared at least between the application execution environment and the secure execution environment. ... Marvell World Trade Ltd

04/20/17 / #20170111951

Acknowledgment data unit for multiple uplink data units

A method for simultaneously communicating with multiple communication devices in a wireless local area network is described. Multiple uplink data units are received that are simultaneously transmitted by multiple second communication devices. ... Marvell World Trade Ltd

04/20/17 / #20170111737

Processing audio signals

An audio processing circuit comprises an analyzer circuit that includes a plurality of energy detector units, and an equalizer circuit that includes a plurality of equalization filters. The equalizer circuit is coupled with the analyzer circuit. ... Marvell World Trade Ltd

04/06/17 / #20170099063

Method and apparatus for measuring signal-to-quantization-noise ratio

Apparatus for determining a signal-to-quantization-noise ratio of a quantization circuit includes a signal generator that generates an input test signal for input to the quantization circuit, circuitry for isolating, from output of the quantization circuit, a signal representing quantization noise, and circuitry for determining a ratio of the output of the quantization circuit to the signal representing quantization noise. The signal generator generates an analog test tone having a frequency, and the circuitry for isolating includes a notch filter filtering that frequency. ... Marvell World Trade Ltd

03/23/17 / #20170084291

Sharp noise suppression

A method includes determining a first filtered signal based on an audio signal; determining a second filtered signal based on the audio signal; determining, based on the first filtered signal and the second filtered signal, a portion of the audio signal corresponding to a sharp noise; determining, based on the first filtered signal and the second filtered signal, a gain signal that, for the portion of the audio signal corresponding to the sharp noise, has a value that is smaller than a value of the gain signal for the remaining portion of the audio signal; and suppressing, based on the gain signal, the sharp noise from an amplifier input signal determined based on the audio signal.. . ... Marvell World Trade Ltd

03/23/17 / #20170084289

Residual noise suppression

A method includes determining a preprocessed audio signal by removing some noise from an input audio signal. Here, portions of the preprocessed audio signal that include speech are separated by portions of the preprocessed audio signal that include residual noise. ... Marvell World Trade Ltd

03/16/17 / #20170078915

Systems and methods for transmitting a preamble within a wireless local area network (wlan)

Some embodiments described herein provide a method for transmitting a preamble in accordance with a wireless local area network communication protocol. In some embodiments, a data frame may be obtained for transmission including a preamble compliant with the wireless local area network communication protocol. ... Marvell World Trade Ltd

03/16/17 / #20170078059

Systems and methods for cross-channel scheduling of high efficiency (he) multi-user (mu) frame transmission

Embodiments described herein provide a method for cross-channel scheduling of high efficiency (he) multi-user (mu) frame transmission. In some embodiments, channel information and client station information may be obtained for data transmission. ... Marvell World Trade Ltd

03/16/17 / #20170078009

Power amplifier adjustment for transmit beamforming in multi-antenna wireless systems

One or more beamsteering matrices are applied to one or more signals to be transmitted via multiple antennas. After the one or more beamsteering matrices are applied to the one or more signals, the plurality of signals is provided to a plurality of power amplifiers coupled to the multiple antennas. ... Marvell World Trade Ltd

02/23/17 / #20170054574

Virtual controller area network

According to an embodiment of the present disclosure, a virtual controller area network system includes first, second third controller area network (can) buses. A first can controller is coupled to the first and second can buses and is configured to route messages to and from the first and second can buses. ... Marvell World Trade Ltd

02/23/17 / #20170052904

Systems and methods for cache management for universal serial bus systems

A system includes a cache and a cache-management component. The cache includes a plurality of cache lines that correspond to a plurality of device endpoints. ... Marvell World Trade Ltd

02/16/17 / #20170048943

Method and apparatus for dimmable led driver

Aspects of the disclosure provide a method for driving dimmable load. The method includes detecting a dimming characteristic in an energy source from which a load draws a first energy according to the dimming characteristic. ... Marvell World Trade Ltd

02/16/17 / #20170048890

Contention-based orthogonal frequency division multiple access (ofdma) communication

A communication device receives a trigger frame that is configured to: trigger a contention-based uplink orthogonal frequency multiple access (ofdma) transmission by multiple communication devices, and indicate a predetermined length of the contention-based uplink ofdma transmission, wherein the predetermined length corresponds to contention-based uplink ofdma transmissions. Responsive to receiving the trigger frame, the communication device generates a data unit having the predetermined length, and responsive to receiving the trigger frame, transmits the data unit as part of a contention-based uplink ofdma transmission.. ... Marvell World Trade Ltd

02/16/17 / #20170048866

Acknowledgement for multiple user communication in a wlan

A first communication device generates a multi-user (mu) physical layer (phy) data unit having independent data for multiple second communication devices. The first communication device also generates respective control frames to prompt second communication devices to transmit an orthogonal frequency division multiple access (ofdma) phy data unit to acknowledge that the second communication devices received the mu phy data unit. ... Marvell World Trade Ltd

02/16/17 / #20170048095

Physical layer data unit format for a wireless communication network

In a method for generating a data unit, it is determined whether the data unit is to be transmitted using single carrier (sc) modulation or orthogonal frequency division (ofdm) modulation. When it is determined that the data unit is to be transmitted using sc modulation, a header field of the data unit is generated using a first technique to indicate that the data unit conforms to a first protocol and/or whether the data unit conforms to a first phy mode or a second phy mode of the first protocol. ... Marvell World Trade Ltd

02/16/17 / #20170048085

Ethernet and ofdm multiplexing on utp cable

Systems, devices, and techniques relating to network upgrade and protocol selection in wireline communication networks are described. A described network device includes ports to connect with destination devices over wireline transmission mediums, wireline transmission mediums respectively comprising at least one pair of wires for transmitting and receiving data; a packet processor configured to forward packets to and from the ports; first transceiver circuitry configured to communicate using an ethernet protocol over at least a portion of the wireline transmission mediums; second transceiver circuitry configured to communicate using an ofdm broadband protocol over at least a portion of the wireline transmission mediums; and a controller. ... Marvell World Trade Ltd

02/16/17 / #20170048046

Short training field for wifi

A first training field is generated for a preamble of an orthogonal frequency division multiplex (ofdm) data unit for transmission via a communication channel according to a first communication protocol. The first training field: i) conforms to a second communication protocol, and ii) has a first periodicity. ... Marvell World Trade Ltd

02/16/17 / #20170047972

Sub-channel allocation in orthogonal frequency division multiplex wlan

A first communication device receives one or more downlink orthogonal frequency division multiplexing (ofdm) data units transmitted by a second communication device via one or more respective sub-channels of an ofdm communication channel. The first communication device identifies the one or more sub-channels of the ofdm communication channel on which the one or more downlink ofdma data units were transmitted, and determines whether each of the one or more sub-channels on which the one or more downlink ofdma data units were transmitted is busy. ... Marvell World Trade Ltd

02/16/17 / #20170047305

Packaging arrangements including a serializing dram interface die

Embodiments provide a packaging arrangement that comprises a package substrate. A random access memory die is coupled to the package substrate and a serializing random access memory interface die coupled to (i) the package substrate and (ii) the random access memory die.. ... Marvell World Trade Ltd

02/16/17 / #20170046102

Flexible interface for nand flash memory

A memory channel command interface for one or more memory channels includes, for each memory channel, programmable storage for memory commands, a single channel processor for executing the memory commands, and a task engine for communicating output of the single channel processor to a memory medium. The memory commands may be organized into jobs including operations that include tasks. ... Marvell World Trade Ltd

02/09/17 / #20170041889

Power saving in a communication device

In a communication network having an access point (ap) and a plurality of client devices, the ap generates a physical layer (phy) protocol header of a phy protocol data unit so that the phy protocol header includes: address information that indicates one or more intended receivers of the phy protocol data unit, and an indicator that specifies whether a client device that is not an intended receiver is permitted to go into a power save mode of operation during a transmit opportunity period (txop) associated with the phy protocol data unit. The ap generates the phy protocol data unit to include the phy protocol preamble, and a phy protocol payload including a media access control layer (mac) protocol header, the mac protocol header including address information that specifies the one or more intended receivers of the phy protocol data unit. ... Marvell World Trade Ltd

02/09/17 / #20170041225

Systems and methods for aggregating data packets in a mochi system

Systems, methods, and apparatuses are disclosed herein for aggregating packets and transmitting the aggregated packets to a device in an integrated circuit. These systems, methods, and apparatuses may include receiving, at a buffer of a system-on-chip (“soc”), a plurality of packets for output. ... Marvell World Trade Ltd

02/09/17 / #20170041174

Sounding and tone block allocation for orthogonal frequency multiple access (ofdma) in wireless local area networks

A first communication device receives sounding feedback packets from a plurality of second communication devices, wherein each sounding feedback packet includes one or more channel quality indicators (cqis) corresponding to one or more groups of orthogonal frequency division multiplexing (ofdm) subcarriers associated with the corresponding second communication device. The first communication device allocates groups of subcarriers to second communication devices in a group for orthogonal frequency division multiple access (ofdma) communication, and the first communication device uses the received cqis to allocate the groups of subcarriers. ... Marvell World Trade Ltd

02/09/17 / #20170041030

Methods and apparatus for mitigating known interference

Systems and methods for mitigating known interference at a receiving device are provided. A signal from a transmission source is received by a receiving device that is affected by an interference source. ... Marvell World Trade Ltd

02/09/17 / #20170039154

Systems and methods for performing unknown address discovery in a mochi space

Systems, methods, and apparatuses are disclosed herein for discovering unknown chips and chip components of a mochi system. To this end, a first system-on-chip (“soc”) may transmit a first discovery packet from a downlink mochi port the first soc to an uplink mochi port of a second soc. ... Marvell World Trade Ltd

02/09/17 / #20170039152

Systems and methods for implementing topology-based identification process in a mochi environment

Systems, methods, and apparatuses are disclosed herein for identifying a topology of a mochi system prior to a boot-up of an operating system. A master soc may detect, prior to boot-up of an operating system that uses the master soc, an initialization command, and may, in response to detecting the initialization command, assign a first chip identifier to the master soc. ... Marvell World Trade Ltd

02/09/17 / #20170039149

Systems and methods for transmitting interrupts between nodes

Systems and methods for transmitting a group of interrupts across nodes are provided. A first interrupt signal, comprising a first group of interrupts, is received, with a first node, from a second node. ... Marvell World Trade Ltd

02/09/17 / #20170038996

Methods and apparatus for accelerating list comparison operations

Comparison circuitry includes a first memory that stores a list of data items, a second memory that stores a list of most-recently used ones of the data items, a first comparator that compares an input data item first to the ones of the data items in the second memory and, only in absence of a hit in the second memory, compares the input data item to the data items in the first memory. At least one additional comparator may operate in parallel with the first comparator to compare the input data item to respective data items in at least one additional second memory, and to compare the input data item to respective data items in the first memory in absence of a respective hit in the at least one additional second memory. ... Marvell World Trade Ltd

02/02/17 / #20170034003

Purposely corrupted packet for connection information

A method for providing connection information between a first communication device and a second communication device is described. At least one purposely corrupted packet that includes a purposely corrupted packet attribute is generated by the first communication device. ... Marvell World Trade Ltd

01/19/17 / #20170019944

Dual connectivity for user equipment having one carrier sending capability

The present disclosure describes systems and techniques relating to wireless communications by devices that include a communication device including: a radio unit configured to communicate wirelessly in accordance with a wireless communication system; and a controller coupled with the radio unit, the controller configured to (i) obtain a time division uplink resource that indicates both a first set of time slots and a second set of time slots, which are different than the first set, to support dual connectivity with a macro cell station and a micro cell station of the wireless communication system in which the macro cell station and the micro cell station are coupled with each other through a non-ideal backhaul, (ii) send first feedback data to the macro cell station using the first set of time slots, and (iii) send second feedback data to the micro cell station using the second set of time slots.. . ... Marvell World Trade Ltd

01/19/17 / #20170019785

System and method for establishing security in network devices capable of operating in multiple frequency bands

A method includes establishing, in response to a network device operating in the first frequency band, security for the first frequency band and a second frequency band by performing a single authentication in the first frequency band prior to the network device switching operation from the first frequency band to the second frequency band. The method includes transferring, subsequent to the network device switching operation from the first frequency band to the second frequency band, a communication session of the network device from the first frequency band to the second frequency band. ... Marvell World Trade Ltd

01/19/17 / #20170019281

Compressed orthogonal frequency division multiplexing (ofdm) symbols in a wireless communication system

One or more first padding bits are added to information bits to be included in a data portion of a data unit such that the information bits, after being encoded, fill one or more ofdm symbols up to a boundary within a last ofdm symbol. The information bits and the first padding bits are encoded to generate coded bits. ... Marvell World Trade Ltd

01/19/17 / #20170019140

Reconfigurable integrated rf front-end for dual-band wlan transceivers

Systems and techniques relating to wireless communication devices and reconfigurable an integrated rf front-end for dual-band wlan transceivers include, according to an aspect, an integrated circuit chip comprising: radio frequency (rf) front-end circuitry, wherein the rf front-end circuitry comprises (i) an antenna input line configured to connect with one or more antennas of a wireless communication device, (ii) a transmitter input line, (ii) a first receiver output line, (iii) and a second receiver output line; harmonic trap circuitry coupled with the rf front-end circuitry via the antenna input line, the harmonic trap circuitry being fully integrated on the integrated circuit chip.. . ... Marvell World Trade Ltd

01/12/17 / #20170012652

Tunable balun

A system includes a balun, a power monitoring circuit, a first circuit, and a second circuit. The balun includes a first inductor to receive an input and a second inductor to couple the input to a load. ... Marvell World Trade Ltd

01/12/17 / #20170012637

Successive approximation sigma delta analog-to-digital converters

An a/d converter including first and second a/d converters and a recombination module. The first a/d converter receives an analog input signal, converts the analog input signal to a first digital signal, and includes a successive approximation module, which performs a successive approximation to generate the first digital signal. ... Marvell World Trade Ltd

01/12/17 / #20170012636

Hybrid charge-sharing charge-redistribution dac for successive approximation analog-to-digital converters

A hybrid d/a converter is provided including first and second d/a converters. The first d/a converter receives a digital signal having an input voltage and converts a first most-significant-bit of the digital signal to be converted to an analog signal. ... Marvell World Trade Ltd

01/12/17 / #20170012633

Analog-to-digital converters for successive approximation incorporating delta sigma analog-to-digital converters and hybrid digital-to-analog converters with charge-sharing and charge redistribution

An a/d converter including a sample and hold circuit, first and second a/d converters and a combination circuit. The sample and hold circuit samples an analog input signal to generate bits. ... Marvell World Trade Ltd

01/12/17 / #20170012589

Amplification circuit and method of compensating for voltage offset of inputs

Aspects of the disclosure provide an amplification circuit. The amplification circuit includes an amplifier and a first variable resistive device. ... Marvell World Trade Ltd

01/12/17 / #20170012553

Power rectifier

A power rectifier rectifies alternating electric current by using a controller in the power rectifier to control a first delay corresponding to a first delay circuit in the power rectifier to turn on a high side switch in the power rectifier, wherein the high side switch provides a path for power from an input voltage line of the power rectifier to an output voltage line of the power rectifier. The controller controls a second delay corresponding to a second delay circuit in the power rectifier to maintain the high side switch in an on state so as to change a switching state of the high side switch based on detection, by a current inversion detector, of a current inversion associated with the input and output voltage lines of the power rectifier.. ... Marvell World Trade Ltd

01/05/17 / #20170006459

System and method for adjusting a discovery protocol in a wireless network

A first wireless device includes network discovery circuitry to initiate a discovery protocol to discover second wireless devices and to establish a wireless connection with at least one of the second wireless devices. Transmission circuitry transmits first discovery-related packets on a wireless channel and receiver circuitry receives second discovery-related packets from the second wireless devices on the wireless channel. ... Marvell World Trade Ltd








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