Code converter
US4081790A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Oct 6, 1976 |
| Grant date | Mar 28, 1978 |
| Priority date | — |
| Expiry date | Oct 6, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A code converter circuit in a digital transmission system in which two mutually-synchronized digital signals are transmitted through a pair of transmission paths is disclosed. The transmission paths are characterized by the possibility of the terminal-to-terminal correspondence between input and output sides of the transmission paths being reversed. The code converter circuit includes an encoder on the input side of the transmission paths and a decoder on the output side of the transmission paths. The encoder comprises a modulo-2 adder and a switching circuit for selectively switching the input digital signals or the adder output signals to the transmission paths. The decoder comprises a modulo-2 subtractor and a switching circuit for selectively switching the digital signals from the transmission paths or the subtractor output signals to reproduce the transmitted digital signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.