Control circuit for a radio transceiver
US4513446A · kind A · utility
14Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 9, 1983 |
| Grant date | Apr 23, 1985 |
| Priority date | — |
| Expiry date | Feb 9, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A vehicular radio transceiver is normally powered by a vehicular ignition switch and a transceiver on-off switch both being closed. A latch circuit senses the presence of communication over the transceiver, and produces a latch signal that powers the transceiver despite opening of either of the switches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.