Mobile unit detection system
US6150931A · kind A · utility
6Cited by
7References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 1999 |
| Grant date | Nov 21, 2000 |
| Priority date | — |
| Expiry date | May 24, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/9329
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A mobile unit detection system or information system in which the existence of a car or other mobile unit which must be paid attention to can be detected only upon receiving a necessary signal. The mobile unit detection system or information system detects a mobile unit through communication between the car and the mobile unit. The car includes a device for judging the operating condition of the car and transmitting a detection signal based on the result. The mobile unit may transmit a response signal upon receiving the detection signal so that the car is able to detect the existence of the mobile unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.