Electrical pulse counters – pulse dividers – or shift registers: c – Applications – Game or sport
Patent
1990-07-16
1992-02-18
Heyman, John S.
Electrical pulse counters, pulse dividers, or shift registers: c
Applications
Game or sport
377 9, 455 66, H04B 712, H04B 1034
Patent
active
050900307
ABSTRACT:
A method and apparatus for counting the laps completed by a remote-controlled model that detects a spurious radio-frequency electromagnetic signal spontaneously generated by the unmodified model. Presently, each model must carry on-board lap-counting signal generating apparatus. This invention eliminates the need for such apparatus, and reduces the complexity, weight, and cost of such models.
REFERENCES:
patent: 3383595 (1968-05-01), Obata
patent: 3434150 (1969-03-01), Wernlund
patent: 3492582 (1970-01-01), Heywood
patent: 3531118 (1970-09-01), Mabie et al.
patent: 3946312 (1976-03-01), Oswald et al.
patent: 4097808 (1978-06-01), Parke
patent: 4340972 (1982-07-01), Heist
patent: 4823367 (1989-04-01), Kreutzfeld
Copeland T. D.
Heyman John S.
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