Qualcomm Incorporated

Other

University of California

Qualcom Incorporate

Harinath Garudadri

Somdeb Majumdar

Pawan Kumar Baheti

Phoom Sagetong

David Jonathan Julian

Hyukjune Chung

Sanjiv Nanda

Ning Bi

Naveen Srinivasamurthy

Chinnappa K Ganapathy

Hynek Hermansky

Petr Motlicek

Yuriy Reznik

Yingyong Qi

Andrew P Dejaco

Naveen B Srinivasamurthy

Chienchung Chang

Narendranath Malayath

David Puig Oses

Albert Scott Ludwin

Daniel Keyes Butterfield

Bhaskar Dharanipragada Rao

Yi Tang

Yuejie Chi

Ching-Hua Lee

Sanjay Marthanda

Kannan Ramachandran

Abhik Majumdar

Stein Arne Lundby

Gene Wesley Marsh

Chong U Lee

Qingjiang Tian

Zhanfeng Jia

Samir Kumar Gupta

Michael Stuart Phillips

Raymond Tah-Sheng Hsu

Raymond T Hsu

Suhail Jalil

Patrick Mercier

Eddie L T Choy

Truong Q Nguyen

Vito Remo Bica

Anthony Patrick Mauro, Ii

Kannan Ramchandran

Kuntal Dilipsinh Sampat

Michael Yip

Subramaniam Venkatraman

William Yee-Ming Huang

Matthew Zivney

James William Dolter

Mohammed Shoaib

Satish Goverdhan

Nelson H Morgan

Tse Nga Ng

Gajinder Singh Vij

Mingxia Cheng

Leanne Chukoskie

Amin Fazeldehkordi

Lukas Burget

Stephane N Dupont

Andrew Skalsky

Frantisek Grezl

Pratibha Jain

Sachin Kajarekar

Fred Harris

Kuan-Lin Chen

Arthur Boothroyd

Yujie Gao

Carol Mackersie

Rouzbeh Kashef

Chandru Sundarraman

Sriram Ganapathy

Sunil Sivadas

Charles C Wooters

Andre Gustavo Adami

Maria Carmen Benitez Ortuzar

Gajinder Vij

Matthew Blaine Zivney

Anthony Patrick Ii Mauro

Pawan K Baheti

A method and system or device such as a hearing aid are provided for processing audio signals. In accordance with the method, an audio signal is received and divided into a plurality of frequency sub-bands. For each of the frequency sub-band signals, the signal is further divided into overlapping temporal frames. Each of the temporal frames are windowed. Frequency warping is performed on each of the windowed frames. Overlap-and-add is performed on the frequency warped frames. The frequency warped sub-bands are combined into a full band to provide a frequency warped signal.

Mitigating acoustic feedback in hearing aids with frequency warping by all-pass networks

Certain aspects of the present disclosure relate to a method for compressed sensing (CS). The CS is a signal processing concept wherein significantly fewer sensor measurements than that suggested by Shannon/Nyquist sampling theorem can be used to recover signals with arbitrarily fine resolution. In this disclosure, the CS framework is applied for sensor signal processing in order to support low power robust sensors and reliable communication in Body Area Networks (BANs) for healthcare and fitness applications.

Wearable system for capturing and transmitting biomedical signals

A first device comprises at least one amplifier. The at least one amplifier is configured to receive a plurality of sensor signals from a plurality of sensors. The at least one amplifier is configured to amplify at least two of the sensor signals to generate a plurality of amplified signals. Each of the amplified signals corresponds to one of the sensor signals. The first device comprises a plurality of modulators. Each of the modulators is configured to modulate one of the amplified signals to a distinct center frequency through employment of a Voltage Controlled Oscillator (VCO) to generate a modulated signal. The first device comprises an adder configured to create a composite signal. The composite signal comprises the modulated signal from each modulator. The composite signal is configured for transmission to a second device.

Sensor signal modulation

A hypertonicity measuring device comprises at least one wearable item. The hypertonicity measuring device comprises at least one communication pathway. The at least one communication pathway is configured to communicate with a processing device. The hypertonicity measuring device comprises a sensor array. The sensor array is disposed to the at least one wearable item. The sensor array comprises a plurality of capacitive pressure sensors. The sensor array is configured to communicate capacitive pressure sensor data to the processing device employing the at least one communication pathway. The plurality of capacitive pressure sensors comprises at least one structured dielectric. The hypertonicity measuring device comprises an inertial measurement unit. The inertial measurement unit is disposed to the at least one wearable item. The inertial measurement unit is configured to communicate motion data to the processing device employing the at least one communication pathway.

Hypertonicity measuring device and method

Certain aspects of the present disclosure relate to a wearable system including one or more wearable acquisition devices. Each acquisition device includes a sensor to capture samples of a biomedical signal and circuitry to process the samples for transmission to a mobile device. The samples are encoded for transmission and decoded at the mobile device to reconstruct the biomedical signal and, based on the reconstructed biomedical signal, provide output through a user interface of the mobile device. The wearable system includes at least an acquisition device for capturing an electro-cardiogram signal (ECG). Other biomedical signals, such as a photoplethysmograph (PPG) signal, may also be captured. The wearable system may comprise a Body Area Network (BAN).

A signal processing device comprises: input transducer(s) configured to convert input(s) to an input signal; output transducer(s) configured to convert an output signal to output(s); a signal processing circuit configured to at least subtract a feedback estimation signal from the input signal to produce a feedback compensated signal; and an adaptive feedback estimator. The adaptive feedback estimator comprises processor(s) and machine readable medium(s) collectively comprising instructions configured to cause the processor(s) to: estimate feedback path characteristic(s); construct an adaptive feedback cancellation filter based at least in part on the feedback path characteristic(s); select a value for variable p in a diversity measure norm; compute an update rule for the adaptive feedback cancellation filter, the update rule based on the diversity measure norm; apply the update rule to the adaptive feedback cancellation filter; and generate the feedback estimation signal through employment of the adaptive feedback cancellation filter on the output signal.

Sparsity-aware adaptive feedback cancellation

The present disclosure relates to a device and method for acquiring and processing sensor signals on a host device. The device comprises a jack and connects to a socket on the host device. The device further comprises an instrumentation block which draws power from the host socket to power its operation. The instrumentation block further processes signals and conveys this information to the host device up on connecting the device jack to the host socket. The host device controls certain aspects of the electronics module for acquiring and processing plurality of signals. The instrumentation block in the device connects to one or more sensors through cables to sense at least one of electrocardiogram (ECG), Electroencephalography (EEG), motion, airflow of respiratory system, body temperature, light intensity of arterial oxygen saturation level, blood pressure and any other physiology signal.

Ambulatory diagnostic device and method thereof

A hearing assistance and/or noise suppression device leverages computing power of an external device with a digital signal processor, such as a special unit that is configured to communicate with a smart device (e.g., a smart phone, smart watch or smart pendant) or a smart phone with a digital signal processor. Methods include having a hearing transducer communicate with and offload computing tasks to an external device with a digital signal processor. Systems include a hearing transducer with transducer circuitry that receives, amplifies and outputs digital signal processed audio from another device. Methods provide self-adjustment and fitting through a touch screen interface, which can be conducted outside of a clinical setting in a real world environment, and method can include remote data collection and communications with clinicians.

External device leveraged hearing assistance and noise suppression device, method and systems

Method and apparatus for under-sampled acquisition and transmission of photoplethysmograph (PPG) data and reconstruction of full band PPG data at the receiver

Method and apparatus for distributed processing for wireless sensors

Methods and apparatus are described for transmitting information units over a plurality of constant bit rate communication channel. The techniques include encoding the information units, thereby creating a plurality of data packets. The encoding is constrained such that the data packet sizes match physical layer packet sizes of the communication channel. The information units may include a variable bit rate data stream, multimedia data, video data, and audio data. The communication channels include CMDA channels, WCDMA, GSM channels, GPRS channels, and EDGE channels.

Delivery of information over a communication channel

Techniques for efficiently performing full and scaled transforms on data received via full and scaled interfaces, respectively, are described and comprise (1) performing a first transform on a block of first input values to obtain a block of first output values by scaling the block to obtain scaled input values, performing a scaled one-dimensional (1D) transform on each row of the block, and performing a scaled 1D transform on each column of the block; and (2) performing a second transform on a block of second input values to obtain a block of second output values by performing a scaled 1D transform on each row of the block, performing a scaled 1D transform on each column of the block, and scaling the block.

Transform design with scaled and non-scaled interfaces

Techniques are described for encoding an audio video stream that is transmitted over a network, for example a wireless or IP network, such that an entire frame of audio and an entire frame of video are transmitted simultaneously within a period required to render the audio video stream frames by an application in a receiver. Aspects of the techniques include receiving audio and video RTP streams and assigning an entire frame of RTP video data to communication channel packets that occupy the same period, or less, as the video frame rate. Also an entire frame of RTP audio data is assigned to communication channel packets that occupy the same period, or less, as the audio frame rate. The video and audio communication channel packets are transmitted simultaneously. Receiving and assigning RTP streams can be performed in a remote station, or a base station.

Synchronization of audio and video data in a wireless communication system

Methods and apparatus are described for improving the transmission of information over wireless communication channels. These techniques include determining available communication channels for transmitting information and determining possible physical layer packet sizes of the available channels. An information unit is partitioned into portions wherein the size of the portions are selected so as to match one of the physical layer packet sizes of the available communication channels. Another aspect is partitioning the information into a number of slices that correspond to the number of transmissions that occur during the information unit interval and assigning each partition to a corresponding transmission. The techniques can be used for various types of information, such as multimedia data, variable bit rate data streams, video data, or audio data.

Method and apparatus for allocation of information to channels of a communication system

Certain aspects of the present disclosure relate to a method for quantizing signals and reconstructing signals, and/or encoding or decoding data for storage or transmission. Points of a signal may be determined as local extrema or points where an absolute rise of the signal is greater than a threshold. The tread and value of the points may be quantized, and certain of the quantizations may be discarded before the quantizations are transmitted. After being received, the signal may be reconstructed from the quantizations using an iterative process.

Method and apparatus for processing and reconstructing data

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San Diego, CA, United States of America

Harinath Garudadri