Digital transceiver for full-duplex transmission of binary signals over a common line
US4604740A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1984 |
| Grant date | Aug 5, 1986 |
| Priority date | — |
| Expiry date | Mar 2, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/1423
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A transceiver inserted between a source of binary signals and a one-wire line, dialoguing with a similar transceiver in series with another source at the opposite end of the line, comprises two voltage sensors connected in parallel to the line at a point downstream of a terminal impedance at which the line voltage substantially equals the mean of the voltage levels simultaneously generated by the two sources. The two voltage sensors have thresholds respectively lying at a lower and an upper intermediate level between the two binary signal levels (L, H) employed and work into a common signal receiver through a multiplexer so controlled by the local source as to connect that receiver always to that detector whose low or high output signal corresponds to the binary value (L, H) of the signal then arriving from the remote source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.