Local incident reducing device
US5990808A · kind A · utility
Inventor
Key dates
| Filing date | Dec 4, 1997 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Dec 4, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/087
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A traffic light remote control system comprising a plurality of traffic lights each situated at a single road intersection and having a green light, a yellow light, and a red light constituting an array of racing lights. Associated therewith is a programmable logic controller connected to each of the traffic lights of the single road intersection and adapted to flash each of the array of racing lights thereof only upon the receipt of an activation signal with an accompanying unique code associated therewith. Also included is a cellular transceiver connected to the programmable logic controller with a modem connected therebetween. The modem and cellular transceiver serve to communicate signals over a unique cellular line with a unique phone number dedicated to the plurality of traffic lights of the single intersection. Next provided is a mobile actuator unit including an activation button for transmitting the activation signal upon the depression thereof and a phone number and code entering mechanism for providing a phone number and associated code. A cellular transceiver is provided for communicating signals over a unique cellular line associated with a unique phone number upon the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.