Apparatus and methods for monitoring and detecting seat belt usage
US6784803B1 · kind B1 · utility
4Cited by
9References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2002 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Sep 19, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2022/4866
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Apparatuses and methods for monitoring and detecting seat belt usage, having an enforcement device with an enforcement circuit board and a vehicle device with a vehicle circuit board. Each of the enforcement circuit board and the vehicle circuit board has a transformer and a receiver and a pair of antennas for transmitting and receiving a first signal and a return signal. The enforcement device and the vehicle device communicate a properly fastened state or an improperly fastened state for a seat belt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.