Code converter for polarity-insensitive transmission systems
US4387366A · kind A · utility
7Cited by
4References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 9, 1981 |
| Grant date | Jun 7, 1983 |
| Priority date | — |
| Expiry date | Nov 9, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/4925
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A polarity-insensitive code converter in which blocks of binary digits are translated into multilevel words having either one mode or another mode so that each coded word of one block of binary digits is the inverse coded word of the block of inverse binary digits. Hence, the inversion of a code word during transmission results in the inversion of the recovered binary. With additional precoding and postcoding of the binary signal, polarity integrity of the original signal can always be restored.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.