Noise cancellation for wireless audio distribution system
US8208654B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2007 |
| Grant date | Jun 26, 2012 |
| Priority date | — |
| Expiry date | May 1, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K2210/1081
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A wireless audio distribution system may have a wireless transmitter, responsive to a plurality of audio input channels, for transmitting signals carrying the audio, a receiver, responsive to the transmitted signals for selecting one or more of the audio input channels to be reproduced in accordance with local setting selectors at the receiver. Speaker audio channel anti-noise signals can be subtracted from the head audio channel to cancel the noise related to the playing of the speaker audio on the speakers while the headset audio is played on the headset. Analog anti-noise signals can be produced by use of a microphone associated with the headset and later subtracted from the headset audio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.