System and method for locating objects including an inhibiting feature
US5731785A · kind A · utility
Inventors
Key dates
| Filing date | May 13, 1994 |
| Grant date | Mar 24, 1998 |
| Priority date | — |
| Expiry date | May 13, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2205/002
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system and method are provided for communicating between a person, object, and/or vehicle carried transceiver and a monitor station to locate and track the movement of the same for security or anti-crime purposes. A portable computing and communication device carried by a person or located (hidden) in an object generates and transmits via radio signals a plurality of codes when remotely activated. One (or more) code(s), identifying or descriptive of the person, object or vehicle to be tracked, is (are) generated and transmitted to a monitor station to display character and/or video picture information describing and/or physically displaying a picture of a select person and/or vehicle and license plate information to permit police or security personnel to recognize the same. Such coded information may be immediately transmitted or retransmitted from the monitor station to a radio receiver carried by a policeman or in one or more police vehicles. The portable device is equipped with location sensing capability, such as receiving signals from satellites such as from the GPS constellation, and a computer for calculating its position using triangulation methods. Transmission of the po…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.