Interface device
US4809297A · kind A · utility
16Cited by
13References
10Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 4, 1984 |
| Grant date | Feb 28, 1989 |
| Priority date | — |
| Expiry date | Oct 4, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/00103
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An interface device for connection between a facsimile reproduction machine and a simplex radio includes a receiving circuit and a transmitting circuit. A switch connects an appropriate one of the circuits to the machine. A control circuit monitors the change in the mode of operation of the machine and operates upon the switch to cause a corresponding change of connection to the machine. The control circuit also operates upon the transceiver to condition it to a transmit mode upon the transmit circuit being selected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.