Radio communication system with controlled voice code switching
US5513211A · kind A · utility
11Cited by
5References
3Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 25, 1994 |
| Grant date | Apr 30, 1996 |
| Priority date | — |
| Expiry date | May 25, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/1415
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A radio communication system operates between two radio terminals, and/or between a radio terminal and a fixed terminal through a network. In the present disclosure, the switching of codec-release mode and codec mode in the network is controlled by using a specific control line which is installed in addition to a speech line. Thus, when a radio terminal communicates with another radio terminal through a network, no codec is used in the network, and so, speech distortion and signal delay are not deteriorated due to signal conversion by using a codec.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.