Tire pressure monitoring and remote keyless entry system using asynchronous duty cycling
US7474195B2 · kind B2 · utility
12Cited by
9References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 19, 2004 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Mar 11, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A device and method detects two different types of data, such as tire pressure monitoring system (TPMS) data and remote keyless entry (RKE) data and reduces current draw by duty cycling a receiver in the device asynchronously to intersperse multiple RKE sniffing periods in between consecutive, longer TPMS/RKE sniffing periods. The asynchronous duty cycle ensures that the sniffing periods conform to the actual length of the RKE data and TPMS data periods more closely, minimizing the likelihood of false wakeups caused by noise output by the receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.