High speed multiplexer and demultiplexer for pulse code channels
US4063040A · kind A · utility
3Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 1976 |
| Grant date | Dec 13, 1977 |
| Priority date | — |
| Expiry date | Nov 22, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/07
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
For multiplexing 6 binary channels for example, two transcoders are respectively fed by the groups of input channels A, B, C and D, E, F in each of which is inserted a locking and identification word. Two three-channel frames in intermediate ternary form are thus obtained. Conversion into definitive ternary code (moment +, O, -) takes place at the same time as the interlacing, moment by moment, of the two three-channel frames. The demultiplexer groups the moments pertaining to one and the same three-channel frame for transcoding. The system allows high speed multiplexing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.