Invention Grant
- Patent Title: Signal enhancements for audio
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Application No.: US14971890Application Date: 2015-12-16
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Publication No.: US09722562B1Publication Date: 2017-08-01
- Inventor: Chad Seguin
- Applicant: Google Inc.
- Applicant Address: US CA Mountain View
- Assignee: Google Inc.
- Current Assignee: Google Inc.
- Current Assignee Address: US CA Mountain View
- Agency: McDonnell Boehnen Hulbert & Berghoff
- Main IPC: H04R1/10
- IPC: H04R1/10 ; H03G5/16 ; G06F3/16 ; H03G5/00 ; H04R3/04

Abstract:
The present application describes signal enhancements to reduce bone conduction sensations of a wearable computing device and applications thereof. An example apparatus includes a wearable computing device comprising a bone conduction transducer (BCT) configured to receive and be driven by an audio signal, a processor, and a data storage comprising instructions executable by the processor to: (1) determine an input gain level of the audio signal at a frequency range; (2) compare the determined input gain level at the frequency range to a threshold gain level at the frequency range; (3) based on the comparison, apply a multi-band compressor (MBC) configured to process the audio signal to reduce gain in at least a portion of a mid-band frequency range of the audio signal; and (4) drive the BCT with the processed audio signal.
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