James Michael Silva

US Patent:

8214223, Jul 3, 2012

Filed:

Sep 27, 2011

Appl. No.:

13/246572

Inventors:

Robin Thesing - Nürnberg, DE
James M. Silva - San Jose CA, US
Robert L. Andersen - San Francisco CA, US

Assignee:

Dolby Laboratories Licensing Corporation - San Francisco CA

International Classification:

G10L 19/00
H04H 20/47

US Classification:

704500, 381 2

Abstract:

A method, an apparatus, a computer readable storage medium configured with instructions for carrying out a method, and logic encoded in one or more computer-readable tangible medium to carry out actions. The method is to decode audio data that includes N. n channels to M. m decoded audio channels, including unpacking metadata and unpacking and decoding frequency domain exponent and mantissa data; determining transform coefficients from the unpacked and decoded frequency domain exponent and mantissa data; inverse transforming the frequency domain data; and in the case M

US Patent:

20120237039, Sep 20, 2012

Filed:

May 29, 2012

Appl. No.:

13/482878

Inventors:

Robin Thesing - Nurnberg, DE
James M. Silva - San Jose CA, US
Robert L. Andersen - San Francisco CA, US

International Classification:

H04R 5/00

US Classification:

381 22

Abstract:

A method, an apparatus, a computer readable storage medium configured with instructions for carrying out a method, and logic encoded in one or more computer-readable tangible medium to carry out actions. The method is to decode audio data that includes N.n channels to M.m decoded audio channels, including unpacking metadata and unpacking and decoding frequency domain exponent and mantissa data; determining transform coefficients from the unpacked and decoded frequency domain exponent and mantissa data; inverse transforming the frequency domain data; and in the case M

US Patent:

20160058367, Mar 3, 2016

Filed:

Jul 29, 2015

Appl. No.:

14/812870

Inventors:

- Cupertino CA, US
James M. Silva - San Jose CA, US
Alexander Kanaris - San Jose CA, US
Barker N. Bhaskaran - Kerala, IN

Assignee:

APPLE INC. - Cupertino CA

International Classification:

A61B 5/00
A61B 5/11
A61B 5/0205

Abstract:

A device can estimate the heart rate of an active user by using a physiological model to refine a “direct” measurement of the user's heart rate obtained using a pulse sensor. The physiological model can be based on heart rate response to activity and can be informed by context information, such as the user's current activity and/or intensity level as well as user-specific parameters such as age, gender, general fitness level, previous heart rate measurements, etc. The physiological model can be used to predict a heart rate, and the prediction can be used to assess or improve the direct measurement.

US Patent:

20160051158, Feb 25, 2016

Filed:

Nov 21, 2014

Appl. No.:

14/550820

Inventors:

- Cupertino CA, US
James M. SILVA - San Jose CA, US

International Classification:

A61B 5/024
A61B 5/00

Abstract:

An algorithm for removing motion artifacts from a PPG signal in the frequency domain and a harmonic template classifier (HTC) algorithm and unit to determine heart rate are disclosed. In some examples, PPG signals can be processed in combination with accelerometer signals to remove unwanted artifacts in the frequency domain. For example, an acceleration mask can be generated and used to filter out acceleration contributions represented in the PPG signal. Additionally or alternatively, in some examples, an HTC unit can be configured to generate a heart rate correlation curve based on the correlation between frequency domain PPG signals and spectral templates. In some examples, the HTC unit can be configured to implement an algorithm to determine a predicted heart rate and an associated confidence measure. In some examples, heuristics can be used to determine a predicted heart rate based on the correlation curve and/or the confidence measure.