Pulse coded warning system for racetrack

Details Pulse coded warning system for racetrack Pulse coded warning system for racetrack

1988-03-15

1988-11-15

Crosland, Donnie L.

Communications: electrical

Systems

Game reporting

340902, 340905, 340908, 340696, 340351, 272 4, 273 86R, G08B 2300

Patent

active

047852828

ABSTRACT:
A race condition alerting system includes a transmitter actuated by a flagman or other race official and a receiver unit in each race car. The transmitter transmits a pulse encoded signal repeatedly over about a ten second interval, with a digital code that corresponds, e.g., to a green flag or a yellow flag condition. The receiver units which are self contained receive and decode the signal and then switch on the appropriate indicator. To combat electrical engine noise, the receiver includes a noise gate and a pulse width decoder. A latching flip flop holds the appropriate indicator on until a different coded signal is transmitted. All of the race competitors receive the same visual indication substantially simultaneously.

REFERENCES:
patent: 2442851 (1948-06-01), Halstead
patent: 3233217 (1966-02-01), Bost, Jr.
patent: 3532986 (1970-10-01), Gelushia et al.

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