Vehicle security system
US5679984A · kind A · utility
36Cited by
14References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 1996 |
| Grant date | Oct 21, 1997 |
| Priority date | — |
| Expiry date | Aug 8, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/5973
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The security system comprises a coil (34) close to the vehicle ignition lock (38), a control unit (10) for energizing the coil and a transponder which comprises a coil (32), a transistor (30) and a transmitter (24) and a power supply (26). In use the coil (32) picks up a conventional alternating magnetic signal emitted by the coil (34), and provides sufficient power to activate the transistor (30) which connects the power supply (26) to the transmitter (24) causing it to transmit an enabling signal to the control unit. The control unit may be programmed to re-mobilize the vehicle engine on receiving of the correct signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.