Selective current reduction enabled with electrically deactivated key fob
US9379567B2 · kind B2 · utility
44Cited by
8References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2012 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | May 25, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2310/46
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Smart key fob with an integrated rechargeable battery and a replaceable battery. Transfer of charge from the replaceable battery to the rechargeable battery is configured to occur only during a period of time when the key fob remains motionless to reduce RF interference with polling operation of the key fob's transceiver to determine presence of the mother-vehicle nearby. Optionally, the poling operation of the transceiver is reduced or ceased during periods of motionlessness of the key fob.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.