Data transmission system
US4910750A · kind A · utility
61Cited by
9References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 8, 1988 |
| Grant date | Mar 20, 1990 |
| Priority date | — |
| Expiry date | Dec 8, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/4908
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The system uses a 3B2T line code, i.e. one in which sets of three or triplets of binary digits are converted into pairs or duplets of ternary elements. All nine of the possible ternary duplets are used, in such a way that the same ternary duplet does not occur twice consecutively. This is done in one version by using the ninth duplet 00 as a repeat indicator, and in the other version by a conversion process in which each conversion operation takes into account the result of the preceding operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.