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Knowles Electronics Llc patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "K" | Knowles Electronics Llc-related inventors


Hybrid transducer

A first acoustic transducer has an armature, and the armature moves within a magnetic field. The first transducer also comprises a first coil. ... Knowles Electronics Llc

Microelectromechanical system microphone

A microelectromechanical system (mems) includes a diaphragm with a first surface and a second surface. The first surface is exposed to an environmental pressure. ... Knowles Electronics Llc

Methods and systems for reducing false alarms in keyword detection

Systems and methods for reducing false alarms in keyword detection are provided. An example method includes detecting a keyword in an acoustic signal. ... Knowles Electronics Llc

Audio monitoring and adaptation using headset microphones inside user's ear canal

Systems and methods for audio monitoring and adaptation are provided. An example method includes monitoring an acoustic signal, representing at least one captured sound, inside at least one ear canal. ... Knowles Electronics Llc

Microphone assembly with pulse density modulated signal

The disclosure relates to a microphone assembly including a multibit analog-to-digital converter configured to generate n-bit samples representative of a microphone signal. The microphone assembly also includes a first digital-to-digital converter configured to generate a corresponding m-bit digital signal based on n-bit digital samples, wherein n and m are positive integers and n>m. ... Knowles Electronics Llc

Methods and systems for locating the end of the keyword in voice sensing

Systems and methods for locating the end of a keyword in voice sensing are provided. An example method includes receiving an acoustic signal that includes a keyword portion immediately followed by a query portion. ... Knowles Electronics Llc

Stereo separation and directional suppression with omni-directional microphones

Systems and methods for stereo separation and directional suppression are provided. An example method includes receiving a first audio signal, representing sound captured by a first microphone associated with a first location, and a second audio signal, representing sound captured by a second microphone associated with a second location. ... Knowles Electronics Llc

Sensor device with ingress protection

A microphone includes a base and a microelectromechanical system (mems) die and an integrated circuit (ic) disposed on the base. The microphone also includes a cover mounted on the base and covering the mems die and the ic. ... Knowles Electronics Llc

Ingress protection for reducing particle infiltration into acoustic chamber of a mems microphone package

A surface-mountable mems microphone comprising a mems microphone die and an application-specific integrated circuit (asic) mounted inside a surface-mountable package housing, and fully enclosed therein. The surface-mountable package is a single, self-contained housing that provides an electrical interface to external circuitry for the enclosed mems microphone die and the asic, and provides electrical, physical, and environmental protection for the mems microphone die and the asic. ... Knowles Electronics Llc

Sparse matrix vector multiplication

Systems and methods for multiplying a sparse matrix by a vector using a single instruction multiple data (simd) architecture are provided. An example method includes sorting rows of the sparse matrix by a number of non-zero elements in the rows to generate sorted rows. ... Knowles Electronics Llc

Methods and systems for keyword detection using keyword repetitions

Systems and methods for keyword detection using keyword repetitions are provided. An example method includes receiving an acoustic signal representing at least one captured sound. ... Knowles Electronics Llc

User interface incorporating strain gauges

A device includes a substrate, strain gauges, and a controller coupled to the strain gauges. The substrate has a front surface and an opposing rear surface, the front surface including a button representation and the rear surface including a button area corresponding to the button representation. ... Knowles Electronics Llc

Microelectromechanical system (mems) device packaging

Systems, apparatuses, and methods for manufacturing a microelectromechanical system (mems) device. The mems device includes a substrate, a cap, a microelectromechanical component, and a tag. ... Knowles Electronics Llc

Digital microphone assembly with improved frequency response and noise characteristics

A microphone assembly includes an acoustic transducer element configured to convert sound into a microphone signal in accordance with a transducer frequency response including a first highpass cut-off frequency. The microphone assembly additionally includes a processing circuit including a signal amplification path configured to receive, sample and digitize the microphone signal to provide a digital microphone signal. ... Knowles Electronics Llc

01/18/18 / #20180020275

Stacked chip microphone

A microphone device comprises a base, a port formed in the base, a cover attached to the base that forms a housing interior with the base, an mems element disposed in the housing interior and on top of the port, and an integrated circuit stacked on top of the mems element. The mems element includes a diaphragm and a backplate opposing the diaphragm. ... Knowles Electronics Llc

01/11/18 / #20180014123

Microphone assembly with digital feedback loop

A microphone assembly includes a transducer element and a processing circuit. The processing circuit includes an analog-to-digital converter (adc) configured to receive, sample and quantize a microphone signal generated by the transducer element to generate a corresponding digital microphone signal. ... Knowles Electronics Llc

01/11/18 / #20180014099

Transducer package with through-vias

A microphone includes a microelectromechanical system (mems) die configured to sense an acoustic signal, a base, and a lid. The base has a top surface and a bottom surface. ... Knowles Electronics Llc

01/11/18 / #20180012588

Split signal differential mems microphone

An integrated circuit includes a first amplifier and a second amplifier. A first impedance matching circuit is coupled to the first amplifier, a first charge pump, and a single mems transducer. ... Knowles Electronics Llc

12/28/17 / #20170374469

Acoustic apparatus with diaphragm supported at a discrete number of locations

An acoustic apparatus includes a back plate, a diaphragm, and at least one pillar. The diaphragm and the back plate are disposed in spaced relation to each other. ... Knowles Electronics Llc

12/07/17 / #20170352639

Method for protecting bond pads from corrosion

Methods, systems, and apparatuses for preventing corrosion between dissimilar bonded metals. The method includes providing a wafer having a plurality of circuits, each of the plurality of circuits having a plurality of bond pads including a first metal; applying a coating onto at least the plurality of bond pads; etching a hole in the coating on each of the plurality of bond pads to provide an exposed portion of the plurality of bond pads; dicing the wafer to separate each of the plurality of circuits; die bonding each of the plurality of circuits to a respective packaging substrate; and performing a bonding process to bond a second, dissimilar metal to the exposed portion of each of the plurality of bond pads such that the second, dissimilar metal encloses the hole in the coating of each of the plurality of bond pads, thereby enclosing the exposed portion.. ... Knowles Electronics Llc

11/30/17 / #20170347174

Microphone device with integrated pressure sensor

A microphone device comprises a microphone die including a first microphone motor and a second microphone motor, an acoustic integrated circuit structured to process signals produced by the first microphone motor and the second microphone motor, and a sensor die stacked on top of the acoustic integrated circuit, wherein the sensor die comprises a pressure sensor. Another microphone comprises a microphone die including a first microphone motor and a second microphone motor and an integrated circuit die. ... Knowles Electronics Llc

11/30/17 / #20170344123

Recognition of pickup and glance gestures on mobile devices

Methods and systems for recognition of pickup and glance gestures for a mobile device are provided. An example method includes acquiring sensor data generated by at least one sensor of a mobile device. ... Knowles Electronics Llc

11/23/17 / #20170339485

Reduced-damping acoustic holes

Systems and apparatuses for a mems device. The mems device includes a diaphragm and a backplate spaced a distance from the diaphragm forming an air gap therebetween. ... Knowles Electronics Llc

09/21/17 / #20170272868

Driver with acoustic filter chamber

In one aspect, a low frequency driver is provided having a diaphragm operable to produce sound, a front volume, and an outlet that receives sound from the front volume and directs sound out from the low frequency driver. The low frequency driver further includes a low-pass filter chamber in communication with the front volume.. ... Knowles Electronics Llc

09/14/17 / #20170264997

Top port multi-part surface mount silicon condenser microphone

A surface mount package for a micro-electro-mechanical system (mems) microphone die is disclosed. The surface mount package features a substrate with metal pads for surface mounting the package to a device's printed circuit board and for making electrical connections between the microphone package and the device's circuit board. ... Knowles Electronics Llc

08/31/17 / #20170251292

Audio device with acoustic valve

In accordance with one aspect, an in-the-ear component of an audio device is provided that includes a receiver operable to produce sound, an ear canal-engaging portion, and an outer portion. The in-the-ear component further includes a passage extending through the ear canal-engaging portion and the outer portion and an acoustic valve operable to open and close the passage.. ... Knowles Electronics Llc

08/24/17 / #20170242527

System and method for detecting touch on a surface of a touch sensitive device

A touch sensitive device including a front panel having a touch surface and a back surface opposite the touch surface. The touch sensitive device further includes one or more vibration transducers mounted to the back surface, and a controller electronically connected to the vibration transducer. ... Knowles Electronics Llc

08/24/17 / #20170240418

Low-cost miniature mems vibration sensor

A vibrational sensor comprises a microelectromechanical (mems) microphone having a base and a lid defining an enclosure, a mems acoustic pressure sensor within the enclosure, and a port defining an opening through the enclosure and material that is arranged to plug the port of the mems microphone. In embodiments, the mems microphone further includes an integrated circuit within the enclosure that is electrically connected to the mems acoustic pressure sensor. ... Knowles Electronics Llc

08/17/17 / #20170238104

Cable backbone for receiver

An audio device is provided, such as a receiver-in-canal hearing aid, which includes an in-the-ear component, a behind-the-ear component, and a cable connecting the in-the-ear component and the behind-the-ear component. The cable includes a reinforcing backbone having a bulbous end portion anchored to one of the in-the-ear component and the behind-the-ear component. ... Knowles Electronics Llc

08/17/17 / #20170235434

Ultrasonic actuator apparatus

An ultrasonic actuation apparatus includes a piezoelectric transducer producing a first ultrasonic signal; a second transducer; and a platen, the platen being directly and/or acoustically coupled to the piezoelectric transducer and the second transducer. The second transducer may be a mems microphone. ... Knowles Electronics Llc

08/10/17 / #20170230758

Microphone and pressure sensor

The present disclosure generally relates to acoustic assemblies. One acoustic assembly includes a base and a first die disposed on the base. ... Knowles Electronics Llc

08/10/17 / #20170230757

Differential mems microphone

The present disclosure relates generally to microphones and related components. One example micro electro mechanical system (mems) motor includes a first diaphragm; a second diaphragm that is disposed in generally parallel relation to the first diaphragm, the first diaphragm and second diaphragm forming an air gap there between; and a back plate disposed in the air gap between and disposed in generally parallel relation to the first diaphragm and the second diaphragm.. ... Knowles Electronics Llc

08/10/17 / #20170230750

Microphone assembly with pulse density modulated signal

The disclosure relates to a microphone assembly comprising a multibit analog-to-digital converter configured to receive, sample, and quantize a microphone signal to generate n-bit digital microphone samples representative of the microphone signal at a first sampling frequency. The microphone assembly also comprises a first digital-to-digital converter configured to receive, quantize, and noise-shape the n-bit digital microphone samples to generate a corresponding m-bit pulse density modulated (pdm) signal, wherein n and m are positive integers, and n>m. ... Knowles Electronics Llc

08/03/17 / #20170223455

Apparatus and method to bias mems motors

A microphone includes a first micro electro mechanical system (mems) motor, the first mems motor including a first diaphragm and a first back plate; and a second mems motor including a second diaphragm and a second back plate. The first diaphragm is electrically biased relative to the first back plate according to a first voltage, the second diaphragm is biased relative to the second back plate according to a second voltage, and a magnitude of the first voltage is different from a magnitude of the second voltage.. ... Knowles Electronics Llc

08/03/17 / #20170221501

Methods and systems for providing consistency in noise reduction during speech and non-speech periods

Methods and systems for providing consistency in noise reduction during speech and non-speech periods are provided. First and second signals are received. ... Knowles Electronics Llc

07/27/17 / #20170214994

Earbud control using proximity detection

Systems and methods for earbud control based on proximity detection are provided. An example method includes transmitting ultrasonic signals and receiving reflected ultrasonic signals. ... Knowles Electronics Llc

07/27/17 / #20170214687

Shared secret voice authentication

Systems and methods for voice authentication are provided. An example method starts with dynamically generating authentication information and a prompt associated therefor. ... Knowles Electronics Llc

07/20/17 / #20170208391

Acoustic echo cancellation reference signal

Systems and methods for acoustic echo cancellation are provided. An example method includes receiving a reference signal. ... Knowles Electronics Llc

07/20/17 / #20170206898

Systems and methods for assisting automatic speech recognition

Systems and methods for assisting automatic speech recognition (asr) are provided. An example method includes generating, by a mobile device, a plurality of instantiations of a speech component in a captured audio signal, each instantiation of the plurality of instantiations being in support of a particular hypothesis regarding the speech component. ... Knowles Electronics Llc

07/06/17 / #20170195817

Simultaneous binaural presentation of multiple audio streams

Systems and methods for simultaneous binaural presentation of multiple audio streams are provided. An example method includes receiving a first audio stream and at least one second audio stream. ... Knowles Electronics Llc

07/06/17 / #20170195811

Audio monitoring and adaptation using headset microphones inside user's ear canal

Systems and methods for audio monitoring and adaptation are provided. An example method includes monitoring an acoustic signal, representing at least one captured sound, inside at least one ear canal. ... Knowles Electronics Llc

07/06/17 / #20170194020

Voice-enhanced awareness mode

Systems and methods for providing ambient awareness are provided. An example method includes receiving an acoustic signal representing at least one captured ambient sound and determining that at least one triggering event has occurred based at least on the acoustic signal, a user profile, and a user context. ... Knowles Electronics Llc

07/06/17 / #20170193974

Occlusion reduction and active noise reduction based on seal quality

Systems and methods for active noise reduction and occlusion reduction based on seal quality of an in-the-ear (ite) module inserted into a user's ear canal are provided. An example method includes receiving one or more acoustic signals. ... Knowles Electronics Llc

06/01/17 / #20170154620

Microphone assembly comprising a phoneme recognizer

The present invention relates to a microphone assembly comprising a phoneme recognizer. The phoneme recognizer comprises an artificial neural network (ann) comprising at least one phoneme expect pattern and a digital processor configured to repeatedly applying one or more sets of frequency components derived from a digital filter bank to respective inputs of an artificial neural network. ... Knowles Electronics Llc

04/20/17 / #20170111012

Method and apparatus for maintaining dc bias

A direct current (dc) bias maintenance circuit operably couples to the input of a primary amplifier. The dc bias maintenance circuit employs feedback to maintain the desired dc bias but lacks any coupling to the output of the primary amplifier. ... Knowles Electronics Llc

03/30/17 / #20170094428

Shock resistant receiver and method of manufacturing the same

An acoustic apparatus includes an outer housing, a receiver, and a shock cushion. The receiver is disposed within the outer housing. ... Knowles Electronics Llc

03/16/17 / #20170078790

Microphone signal fusion

Provided are systems and methods for microphone signal fusion. An example method commences with receiving a first and second signal representing sounds captured, respectively, by external and internal microphones. ... Knowles Electronics Llc

03/16/17 / #20170077914

Method and apparatus to clip incoming signals in opposing directions when in an off state

A mosfet active-disable switch is configured to clip an incoming signal in opposing directions when in an off state. By one approach the clipping is symmetrical and accordingly the switch clips both positive and negative peaks of the incoming signal. ... Knowles Electronics Llc

03/16/17 / #20170077911

Method and apparatus to cancel an offset voltage

These teachings provide for detecting an offset voltage corresponding to a circuit element having an input and an output. (the approaches taught herein will accommodate detecting that offset voltage at either the input and/or the output as desired.) upon detecting the offset voltage a switch that connects the input of the circuit element to ground automatically closes to thereby ground the input. ... Knowles Electronics Llc

03/02/17 / #20170064424

Audio calibration using a microphone

A microphone that includes a calibration signal generator that generates a calibration signal based upon a received invocation input. The calibration signal has known audio properties. ... Knowles Electronics Llc

03/02/17 / #20170061963

Microphone apparatus and method with catch-up buffer

At a microphone, voice activity is detected in a data stream while simultaneously buffering audio data from the data stream to create buffered data. A signal is sent to a host indicating the positive detection of voice activity in the data stream. ... Knowles Electronics Llc

02/16/17 / #20170048623

Dual band mems acoustic device

A device includes a first microelectromechanical systems (mems) transducer, a second mems transducer and a summing device. A first dimension of the first mems transducer is predefined to configure the first mems transducer to have a first resonance frequency. ... Knowles Electronics Llc

02/16/17 / #20170046117

Acoustic apparatus with shared clock

An acoustic apparatus includes a first digital microphone having a first clock pin, a second digital microphone having a second clock pin, an application processor having a third clock pin, a first interface that couples the first digital microphone and the application processor, and a second interface that couples the first digital microphone, the second digital microphone, and the application processor. The acoustic apparatus further includes a clock that connects to the first clock pin, the second clock pin, and the third clock pin, wherein first data is transmitted on a first clock edge, and wherein second, different data is transmitted on a second other clock edge.. ... Knowles Electronics Llc

02/09/17 / #20170041715

Speaker with coil antenna

A speaker is provided in which both audio signals and radio frequency (rf) signals are simultaneously fed to the coil of a speaker device causing the coil to drive the speaker's membrane producing sound and operate as an antenna for various electromagnetic frequencies. The speaker can be equipped with appropriate filter circuits to isolate the audio signals and rf signals within the speaker device.. ... Knowles Electronics Llc

02/09/17 / #20170041692

Ingress protection for reducing particle infiltration into acoustic chamber of a mems microphone package

A surface-mountable mems microphone comprising a mems microphone die and an application-specific integrated circuit (asic) mounted inside a surface-mountable package housing, and fully enclosed therein. The surface-mountable package is a single, self-contained housing that provides an electrical interface to external circuitry for the enclosed mems microphone die and the asic, and provides electrical, physical, and environmental protection for the mems microphone die and the asic. ... Knowles Electronics Llc

01/26/17 / #20170026760

Microphone with humidity sensor

Various embodiments relating to microphone with integrated sensor are disclosed herein. In one implementation, a sensor is disposed in, on, integrated with, and/or at the lid of a micro electro mechanical system (mems) microphone. ... Knowles Electronics Llc

01/26/17 / #20170026759

Microphone with wind noise resistance

A microphone device is comprises a first micro electro mechanical system (mems) device and a second mems device with difference size of pierce holes in the diaphragms. Signal outputs from the first and second mems devices are selectively used to provide wind noise resistance.. ... Knowles Electronics Llc

01/26/17 / #20170026746

Electric rocking mode damper

The invention relates to a new audio transducer for mobile devices, in particular a micro speaker for use in mobile phones, tablets, gaming devices, notebooks or similar devices, that comprises two figure-8 shaped coils to compensate tumbling passively or to detect and compensate actively rocking modes of the membrane along the two axes perpendicular to the axis of piston-wise movement of the membrane using a detection coil and a damping coil per axis. An amplifier may be used to amplify the detection signal in order to increase the damping effect. ... Knowles Electronics Llc

01/26/17 / #20170026730

Microphone with temperature sensor

A microphone includes a base, a mems device, and an integrated circuit. The mems device includes a diaphragm and a back plate. ... Knowles Electronics Llc

01/26/17 / #20170026729

Microphone with pressure sensor

A microphone includes a base, a mems device, and an integrated circuit. The mems device includes a diaphragm and a back plate. ... Knowles Electronics Llc








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