Method of digital signal transmission
US4644546A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Aug 14, 1984 |
| Grant date | Feb 17, 1987 |
| Priority date | — |
| Expiry date | Aug 14, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/4906
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
There is disclosed a method of digital signal transmission in which, for serially transmitting digital data of N channels, where N may for example be 16, 24 or 32, these data are serially and successively transmitted in groups of M, where M may for example be 2, 3 or 4, with each said group including data of K channels, where K may for example be 8, and in which a preamble with a pattern violating the rule of modulation for data transmission is provided, for example, at the foremost part of each such group, a data validity evaluation bit is added to the data of each such channel, and parity data is also provided to the totality of bits of each such group. A group address may also be provided to each such group for indicating its group number within the M groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.