Selective push-to-talk
US8175641B2 · kind B2 · utility
1Cited by
0References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2010 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Jan 19, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/385
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A push-to-talk (PTT) switch with biasing to a first center position in which in which the PTT function of neither one of up to two audio devices is engaged, also having a first operated position to which the switch may be moved by hand operation to cause the PTT function of the first one of the two audio devices to be engaged, and further having a second operated position to which the switch may be moved by hand operation to cause the PTT function of the second one of the two audio devices to be engaged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.