Two microphone uplink communication and stereo audio playback on three wire headset assembly
US8363823B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 7, 2012 |
| Grant date | Jan 29, 2013 |
| Priority date | — |
| Expiry date | Aug 7, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2225/43
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed are methods and devices for communicating between a user device, such as a mobile terminal, and a three wire headset assembly having two microphones coupled thereto. The methods provide two microphone uplink communication and stereo audio playback on a three wire headset assembly without requiring a fourth wire or the addition of a separate voice processor. The headset assembly includes a primary microphone and secondary microphone spaced some distance apart for applying techniques of noise reduction and suppression. The headset assembly includes two speakers. Controlled switches are also included in both the user device and headset assembly to achieve dual use for a single wire of the three wires. The three wire headset may advantageously support both stereo playback and two microphone voice processing. In some embodiments, two microphone noise suppression for a wired headset mode of the user device is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.