Highly efficient multiplexing system
US5121385A · kind A · utility
118Cited by
4References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1989 |
| Grant date | Jun 9, 1992 |
| Priority date | — |
| Expiry date | Sep 14, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M11/064
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The period of a sound-existence/sound-silence of a speech signal is detected. Packet data is inserted in a speech time slot during the period of non-existence of sound in the speech signal. A time slot is also given to the non-speech data requiring a quick response in transmission so that the non-speech data is multiplexed with the speech signal for transmission. Data-non-existence of non-speech data is detected when the non-speech data does not exist and then the packet data is inserted into a time slot of the non-speech data for transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.