Systems and methods for half-duplex speakerphones and other two-way communication devices
US8090078B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2008 |
| Grant date | Jan 3, 2012 |
| Priority date | — |
| Expiry date | Sep 30, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M9/08
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An apparatus to enable half-duplexing capabilities in a two-way communication device is disclosed. The apparatus estimates the signal power and background noise of a first input signal and a second input signal during approximately the same period. The apparatus further provides at least one control signal based on the result of one or more determinations. These determinations may include whether the estimated signal power of at least one of the first and second input signals exceeds a threshold value; whether the estimated signal power of the first input signal exceeds the sum of a first threshold value and the estimated background noise of the first input signal; and whether the estimated signal power of the second input signal exceeds the sum of a second threshold value and the estimated background noise of the second input signal. Other embodiments for use with two-way communication devices and related methods are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.