Terminal switching to a lower speech codec rate when in a non-acoustically coupled speech path communication mode
US6182032A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 10, 1998 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | Sep 10, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/533
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A communication system has a network and a number of terminals. The network and the terminals have multi-rate speech encoders and decoders. Two terminals may communicate with each other through two-way voice communication where voice paths of the two-way voice communication are acoustically coupled to each other. The two terminals may also communicate through at least one non-acoustically coupled path. If the two terminals communicate through at least one non-acoustically coupled path, multi-rate encoders and decoders assigned to the non-acoustically coupled path operate at a lower bit rate than in a situation in which the two terminals operate through two-way voice. Whether a communication between the two terminals is through at least one non-acoustically coupled path is established a priori or dynamically.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.