Vehicle power antenna control with inhibit during cranking
US4733101A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1986 |
| Grant date | Mar 22, 1988 |
| Priority date | — |
| Expiry date | Nov 17, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/103
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Power antenna control apparatus is disclosed for a vehicle having an ignition switch with off, run and start positions, engine start means responsive to the ignition switch in its start position, a radio receiver effective to generate an extend signal when activated and a retract signal when deactivated and means effective to deactivate the radio receiver with the ignition switch in its off and start positions. The control comprises control means responsive to the extend and retract signals to activate the drive means toward, respectively, fully extended and retracted antenna positions and further comprises control means responsive to the ignition switch in its start position to deactivate the drive means at least in the extend direction and for at least a predetermined period of time deemed sufficient for engine starting, whereby reversal of antenna extension during engine starting is prevented. The last control means may be deactivated when the antenna is in its fully extended position to permit immediate antenna retraction when the ignition switch is turned off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.