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Megachips Corporation patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "M" | Megachips Corporation-related inventors


Memory device, controller, host apparatus, data processing system, computer-readable non-transitory recording medium, operation method of memory device, and operation method of host apparatus

Upon receiving an erase command and a first logical address, a controller in a first mode sets, as an erasure waiting area, an erasure unit area assigned with a first physical address associated with the first logical address in a first table. The controller in the first mode replaces, in the first table, the first physical address with a physical address assigned to an erasure completion area. ... Megachips Corporation

Image processor

A setting circuit sets a quantization value per input image on the basis of a noise value of the whole input image, and a quantization circuit performs quantization on first image data to generate second image data. Quantization value based on the noise value the whole input image can realize appropriate denoising depending on the noise level of the whole input image.. ... Megachips Corporation

Image processing method

A setting circuit sets a quantization value per input image on the basis of a noise value of the whole input image, and a quantization circuit performs quantization on first image data to generate second image data. Quantization value based on the noise value the whole input image can realize appropriate denoising depending on the noise level of the whole input image.. ... Megachips Corporation

Pattern antenna

A pattern antenna, with excellent broadband antenna characteristics, that is formed in a small area is provided. The pattern antenna includes a substrate, a first ground portion formed on a first surface of the substrate, an antenna element portion, a protruding and short-circuiting portion, and a second ground portion. ... Megachips Corporation

Encryption device and memory device

A noise generation module generates power consumption noise to conceal the power consumption characteristics of a cryptographic module. The cryptographic module performs first non-linear transformation on received data, and the noise generation module performs second non-linear transformation on received data during the operational period of the first non-linear transformation.. ... Megachips Corporation

Image processing system and image processing method

An roi coefficient and a non-roi coefficient in first wavelet coefficient data corresponding to a first target image are determined on the basis of mask data which is developed for the first wavelet coefficient data. The roi coefficient in the first wavelet coefficient data and a coefficient in second wavelet coefficient data corresponding to a second target image are synthesized. ... Megachips Corporation

Image processing system and image processing method

Wavelet transformation is performed on first image data and second image data until a decomposition level becomes a decomposition level based on synthesis control data or the like, and first wavelet coefficient data and second wavelet coefficient data are thereby generated. An roi coefficient related to an roi and a non-roi coefficient in the first wavelet coefficient data are determined on the basis of mask data and the roi coefficient in the first wavelet coefficient data and a wavelet coefficient in the second wavelet coefficient data are synthesized with each other, and synthesized coefficient data are thereby generated. ... Megachips Corporation

Semiconductor device and method for designing a semiconductor device

A semiconductor design apparatus computes a consumption current in a macro cell region in the semiconductor device. A first region is defined to be a first shape and size on an upper surface on at least one end of a one-side end portion of the macro cell region based on the consumption current in the macro cell region and an allowable current per via that connects a power supply layer and the macro cell region to each other. ... Megachips Corporation

Blood pressure measurement apparatus and blood pressure measurement method

A blood pressure measurement apparatus includes circuitry configured to: detect a pulse of a subject, and obtain a photoplethysmography signal; and obtain estimated blood pressure of the subject based on the photoplethysmography signal. The circuitry receives parameter information, generates time information based on the photoplethysmography signal, applies a blood pressure estimation equation to the time information and the parameter information to calculate the estimated blood pressure, receives basic blood pressure information for the subject and the time information, and performs learning processing of applying a learning operational equation to statistical time information, which is obtained by performing statistical processing on the time information, and the basic blood pressure information to update the parameter information.. ... Megachips Corporation

Transmission device, dp source device, reception device, and dp sink device

A transmission device includes a converter and a transmitter. The converter converts a plurality of link symbols in displayport (dp) into a data block in gen 2 in universal serial bus (usb). ... Megachips Corporation

Encryption device, computer-readable recording medium, and encryption method

An encryption circuit includes a fundamental vector generation circuit configured to generate a random number sequence for serving as a fundamental vector based on an initial vector, an image mask generation circuit configured to generate an image mask with a mask value set for each pixel in a region to be encrypted smaller than a frame size of the image, based on the fundamental vector and coordinate information for specifying the region to be encrypted, and an xor operation circuit configured to compute an exclusive or between each mask value of the image mask and each pixel value of the image data to generate encrypted image data.. . ... Megachips Corporation

High stable oscillator for various operating mode

A frequency stable oscillator with compensation circuit, the device includes a ring oscillator circuit having s number of stages, a current generator circuit configured to generate a first current, a replica circuit having an inverter with output connected to input, configured to generate a first voltage upon dumping a second current onto the replica circuit, a first operational transconductance amplifier (ota) with an input as the first voltage, configured to generate a third current and a current mirror circuit configured to generate a fourth current by adding the first current and the third current in a particular ratio m:n, wherein the inverter of the replica circuit is equivalent to a single stage of the ring oscillator circuit and wherein the fourth current is the total current for the ring oscillator circuit and is as close as possible to s times the second current.. . ... Megachips Corporation

Image processing apparatus

In an image processing apparatus, a first random number seed generation circuit generates a first random number seed corresponding to the line number. An image compression circuit generates compressed data by quantizing addition data acquired by adding up of first image data and a first pseudo random number generated based on the first random number seed and a quantization coefficient. ... Megachips Corporation

Clock correction device and clock correcting method

A clock correction device performs skew adjustment and duty correction of an input clock concurrently or in parallel. The clock correction device includes a correction circuit that performs skew adjustment of an input clock by analog control using a skew adjustment signal based on a phase difference between an output clock and a reference clock, receives a duty control signal, and performs duty correction of the input clock by digital control, a skew detection circuit that receives inputs of the output clock and the reference clock and, when only the reference clock is in a predetermined state, outputs a detection signal that changes to the predetermined state, an integration circuit that integrates the detection signal and generates a first voltage signal, and a comparator that compares the first voltage signal and a first reference signal to thereby generate the skew adjustment signal.. ... Megachips Corporation

09/28/17 / #20170279353

Signal generation device and method for controlling output voltage of regulator

A signal generation device outputs a signal based on a predetermined pattern with a logic transition to a predetermined external device. The signal generation device comprises an output driver which outputs respective signals based on at least two test patterns different in the frequency of the logic transition respectively to the predetermined external device, a regulator which supplies power to the output driver, a current compensation circuit which generates a compensation current, and a control circuit which adjusts a value of the compensation current. ... Megachips Corporation

09/28/17 / #20170278006

State estimation apparatus, state estimation method, and integrated circuit

Provided is a state determination apparatus that appropriately performs pattern classification processing and/or pattern determination processing even when a map generated by the som technique includes discontinuous image regions (e.g., split image regions). In the state determination apparatus, the matching processing unit obtains adaptability data indicating a correlation degree between template data indicating a predetermined state and the som output data. ... Megachips Corporation

08/10/17 / #20170228610

Feature image generation apparatus, classification apparatus and non-transitory computer-readable memory, and feature image generation method and classification method

. . A feature image generation apparatus includes circuitry. The circuitry generates, on the basis of a processing target image in which an object appears, a first image showing the object, and generates, as a feature image showing a feature of the object, at least a part of a rotational composite image obtained by composition of a plurality of rotated images obtained by rotating the first image.. ... Megachips Corporation

08/03/17 / #20170220868

Object detection device

The object detection device 1 detects an object being recognized (such as a pedestrian) in a frame image 42, and identifies an area 42a where a detected object which is detected in the frame image 42 is present. A frame image 43 is input after the frame image 42. ... Megachips Corporation

07/27/17 / #20170213492

Color unevenness correction device and color unevenness correction method

A color unevenness correction device is adapted to the display device that operates in accordance with the write signals supplied to a plurality of color picture elements composing one pixel in a time-division manner through a common signal line. The color unevenness correction device specifies a correction amount based on a first write signal for a first color picture element composing the one pixel and a second write signal for a second color picture element other than the first color picture element composing the pixel and corrects the second write signal in accordance with the correction amount.. ... Megachips Corporation

07/20/17 / #20170205463

Scan test circuit, scan test method, and method of designing scan test circuit

A scan test circuit includes a scan chain formed of a plurality of sub-scan chains, an input distribution circuit, and an output compression circuit. With the use of a bypass circuit, a plurality of sub-scan chains are formed in a compression scan mode by connecting scan cell circuits of a high confidentiality-requiring circuit among a plurality of scan cell circuits included in an internal circuit, and a plurality of sub-scan chains are formed in a non-compression scan mode by bypassing the scan cell circuits of the high confidentiality-requiring circuit.. ... Megachips Corporation

06/15/17 / #20170171562

Image processing system and image processing method

An roi in a first image and a second image are synthesized by synthesizing first wavelet coefficient data corresponding to the first image and second wavelet coefficient data corresponding to the second image. An roi coefficient and a non-roi coefficient in the first wavelet coefficient data are determined on the basis of a mask for the first wavelet coefficient data, and the roi coefficient and a wavelet coefficient in the second wavelet coefficient data, which is corresponding to the non-roi coefficient, are synthesized. ... Megachips Corporation

06/15/17 / #20170170835

Frequency calibration circuit and frequency calibration method

In the frequency calibration circuit, the digital phase-locked-loop circuit repeats a calibration operation involving outputting the digital control signal corresponding to a time difference between the first clock signal which is input from the first oscillator and has a first frequency accuracy, and the second clock signal which is input from the second oscillator and has a second frequency accuracy lower than the first frequency accuracy, changing the capacitance of the discrete type capacitor bank in accordance with the digital control signal using the second oscillator as a digital control oscillator, and changing an oscillation frequency of the second clock signal in accordance with the capacitance of the discrete type capacitor bank, thereby calibrating a phase of the second clock signal to a phase of the first clock signal.. . ... Megachips Corporation

05/11/17 / #20170134755

Image processor

In an earliest vertical synchronization period after sending an encoded image data is restarted, a first reference image determination circuit determines to employ a local decoded image generated in a vertical synchronization period immediately preceding a vertical synchronization period in which an error occurs among multiple local decoded images stored in a first dram as a reference image. In an earliest vertical synchronization period after a decoding circuit is reset, a second reference image determination circuit determines to employ a decoded image generated in the vertical synchronization period immediately preceding the vertical synchronization period in which the error occurs among multiple decoded images stored in a second dram as a reference image.. ... Megachips Corporation

04/27/17 / #20170117976

Method and device for calculating average received power

A device for calculating an indication of power of a received radio signal is disclosed. In one aspect, the device includes a receiver for receiving a plurality of logarithmic values representing a sequence of measurements of power of the received radio signal, and circuitry for determining a sum of the plurality of logarithmic values. ... Megachips Corporation

04/13/17 / #20170103501

Image processor

A setting circuit sets a quantization value per input image on the basis of a noise value of the whole input image, and a quantization circuit performs quantization on first image data to generate second image data. Quantization value based on the noise value the whole input image can realize appropriate denoising depending on the noise level of the whole input image.. ... Megachips Corporation

04/13/17 / #20170103500

Image processing method

A setting circuit sets a quantization value per input image on the basis of a noise value of the whole input image, and a quantization circuit performs quantization on first image data to generate second image data. Quantization value based on the noise value the whole input image can realize appropriate denoising depending on the noise level of the whole input image.. ... Megachips Corporation

03/09/17 / #20170068852

Object detection apparatus

In an object detection apparatus 1, a window definer 11 defines a window relative to the location of a pixel in an input image 20. A classification value calculator 13 calculates a classification value indicative of the likelihood that a detection target is present in the window image contained in the window based on the feature data of the detection target. ... Megachips Corporation

03/02/17 / #20170063545

Random number generating device, cipher processing device, storage device, and information processing system

A random number generating device includes an uncertain circuit which outputs uncertain data, and a cipher processing device. The cipher processing device encrypts input data using a cipher function of the cipher processing device, and generates a random number including higher uniformity than data outputted from said uncertain circuit using the cipher function of the cipher processing device and the data outputted from the uncertain circuit.. ... Megachips Corporation

03/02/17 / #20170062936

Pattern antenna

A pattern antenna, with excellent broadband antenna characteristics, that is formed in a small area is provided. The pattern antenna includes a substrate, a first ground portion formed on a first surface of the substrate, an antenna element portion, a protruding and short-circuiting portion, and a second ground portion. ... Megachips Corporation

03/02/17 / #20170060460

Memory controller

An object of the present invention is to provide a technique that makes it difficult to fabricate an illegal duplicate of a semiconductor storage apparatus. In a memory controller, an address acquisition unit acquires a latency-related designated address. ... Megachips Corporation

01/26/17 / #20170026169

Memory device, host device, and memory system

A control circuit causes a first cryptographic module to perform a dummy operation in a command processing period and a data processing period in which a second cryptographic module performs a normal operation while the first cryptographic module does not perform a normal operation.. . ... Megachips Corporation

01/19/17 / #20170019249

Dp hdcp version converter

A displayport (dp) high-bandwidth digital content protection (hdcp) version converter that converts an hdcp content protection version from input to output includes a receiver and a transmitter. The receiver receives a serial bit stream transmitted from an upstream device, and decrypts link symbols of the received serial bit stream by use of a decryption unit. ... Megachips Corporation

01/12/17 / #20170013278

Image decoding apparatus and image decoding method

Circuitry configured to generate an roi mask by determining whether each of quantized wavelet coefficients constituting quantized image data is associated with an roi or a non-roi in an original image on the basis of the scaling amount of the max-shift method, generate first image data by performing inverse quantization on the quantized image data after being scaled down, generate second image data having a specified decomposition level by performing inverse wavelet transformation on the first image data, generate a restored roi mask having the same decomposition level as that of the second image data by performing a predetermined process on the roi mask once or a plurality of times, generate masked image data by applying the restored roi mask to the second image data, and perform the inverse wavelet transformation on the masked image data until a decomposition level becomes zero.. . ... Megachips Corporation

01/12/17 / #20170010989

Memory system

A control circuit of a memory device feeds a first clock received from a transmission control circuit of a host device back to a reception control circuit of the host device as a second clock. The reception control circuit controls data reception from the memory device in synchronization with the fed-back second clock.. ... Megachips Corporation

01/12/17 / #20170010891

State estimation processor and state estimation system

A microprocessor unit (mpu) connected to external sensors is provided with an interface unit that acquires detection information acquired by the external sensors and a digital signal processor (dsp) that estimates the state of a target object on the basis of the detection information acquired by the interface part and generates state information. The dsp is provided with a simd type arithmetic processing circuitry that processes a plurality of information with one command and is provided with single precision floating point computing units. ... Megachips Corporation








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