Remote switching for handset handsfree speakerphone
US7689233B2 · kind B2 · utility
5Cited by
11References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2006 |
| Grant date | Mar 30, 2010 |
| Priority date | — |
| Expiry date | Jan 4, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/6025
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A remote switching for handset handsfree speakerphone operation in a telephone system including an “off of shelf” analog half duplex switching speakerphone IC on a base unit and routs handset handsfree signals via a RF link to and from a microphone and a speakerphone of at least one cordless handset. The remote switching provides a handset handsfree feature on any analog and digital platform that is not equipped with DSPs or other digital means for embedded speakerphone algorithms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.