Dolby Laboratories Licensing Corporation

Dolby International Ab

Apple Inc.

James Michael Silva

Robert Loring Andersen

Robin Thesing

Karthik Jayaraman Raghuram

Alexander Kanaris

Barker N Bhaskaran

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.

Context-aware heart rate estimation

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&#x3c;N, downmixing according to downmixing data, the downmixing carried out efficiently.

Audio decoder and decoding method using efficient downmixing

Growing community of inventors

San Jose, CA, United States of America

James Michael Silva