US Patent No. 9,363,596

SYSTEM AND METHOD OF MIXING ACCELEROMETER AND MICROPHONE SIGNALS TO IMPROVE VOICE QUALITY IN A MOBILE DEVICE


Patent No. 9,363,596
Issue Date June 07, 2016
Title System And Method Of Mixing Accelerometer And Microphone Signals To Improve Voice Quality In A Mobile Device
Inventorship Sorin V. Dusan, San Jose, CA (US)
Aram Lindahl, Menlo Park, CA (US)
Esge B. Andersen, Campbell, CA (US)
Assignee Apple Inc., Cupertino, CA (US)

Claim of US Patent No. 9,363,596

1. A method of improving voice quality in a mobile device comprising:
receiving acoustic signals from one or more microphones included with a pair of earbuds, wherein a headset includes the pair
of earbuds and a headset wire;

receiving an output from an inertial sensor that is included in the pair of earbuds;
performing spectral mixing of the output from the inertial sensor with the acoustic signals from the one or more microphones
to generate a mixed signal, wherein performing spectral mixing includes scaling the output from the inertial sensor by a scaling
factor based on a power ratio between the acoustic signals from the one or more microphones and the output from the inertial
sensor.