Method and apparatus for object recognition and warning system of a primary vehicle for nearby vehicles
US8350720B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Aug 20, 2008 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Jan 19, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/0965
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A vehicle to vehicle warning system comprises a transmitter associated with a primary vehicle alerting one or more secondary vehicles of its proximity through a receiver. The transmitter may emit a radio frequency signal which activates radio frequency receivers in surrounding vehicles. When in appropriate proximity, the signal is configured to initiate a warning at the secondary vehicle, such as light from a light-emitting device or sound from a sound-generating device. In another form, the primary vehicle includes a passive transmitter and the secondary vehicle includes a multi-frequency resonance tag/circuit having distinct frequencies for detection and discrimination. The passive transmitter creates electromagnetic waves which are generated as it passes by the secondary vehicle housing the multi-frequency resonance tag, setting off the secondary vehicle alarm system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.