Electronic duplex communication system
US5319635A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1992 |
| Grant date | Jun 7, 1994 |
| Priority date | — |
| Expiry date | Dec 7, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/14
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A communication unit (10) transmits a first signal (12) that has a plurality of holes (44) therein during the occurrence of which another communication unit may interrupt. A repeater (14) receives the first signal and transmits a second signal (16) comprising the information in the first signal, and a plurality of digital coded squelch words synchronized with the holes to indicate the location of at least one of the holes in the first signal (i.e., the time at which at least one of the holes will occur). In one embodiment, each hole occurs after each pair of coded squelch words, and accordingly the pairs of coded squelch words are marked to indicate the times of occurrence of holes in the first signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.