Process for time-sequenced multiplexing of data on a transmission medium and devices to implement this process
US4525833A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1982 |
| Grant date | Jun 25, 1985 |
| Priority date | — |
| Expiry date | Sep 24, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/1635
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A process for time-sequenced multiplexing of telephone data, PCM coded, on a transmission medium, and more specifically a process for multiplexing three 10-channel systems to form a standard 30-channel system, wherein: PA0 frames and multiframes are identical in structure for all 10-channel systems; PA0 each 10-channel frame contains 11 time intervals of the same length, the first of which contains auxiliary data, for synchronization, channel signalling, etc., and the last ten carrying information to be transmitted, coded by the pulse modulation and coding technique; PA0 each multiframe comprises the same number of frames as the 30-channel system; PA0 signalling and synchronization data is distributed among the first time intervals in the different frames, such distribution ensuring reliable synchronization and minimum delay, during the change from 10 to 30 channels and vice versa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.