Multi-vehicle multi-controller radio remote control system

Details Multi-vehicle multi-controller radio remote control system Multi-vehicle multi-controller radio remote control system

1979-10-22

1982-06-08

Caldwell, Sr., John W.

Communications: electrical

Continuously variable indicating

With meter reading

340696, 34082569, 273 86B, 180167, 46254, H04B 700, A63H 3004

Patent

active

043342213

ABSTRACT:
A radio control system for a multi-controller, multi-vehicle, independently controlled toy vehicle system provides proportional steering and speed control without mutual interference. Each of a plurality of control sets repetitively transmits low-duty-cycle command bursts containing an identity code and steering and speed commands. The control sets transmit their command bursts asynchronously and, due to the low duty cycle of all transmissions, a high probability exists for non-inteference even when four or more control sets are simultaneously operated to control four or more toy vehicles. Each toy vehicle attempts to match any incoming command burst with a standard including an identity code unique to that vehicle. When a command burst is received which is correct in every respect, including the identity code, the steering and speed commands contained therein are stored and are executed until a new decodeable command burst is received. Command bursts which are not correct in every respect, due to noise or interference between control sets, are ignored and the previously stored commands continue to be executed.

REFERENCES:
patent: 3400488 (1968-09-01), Phillpott et al.
patent: 3482046 (1969-12-01), Hughson et al.
patent: 3639755 (1972-02-01), Wrege
patent: 3782031 (1974-01-01), Byron
patent: 4080602 (1978-03-01), Hattori et al.
patent: 4135181 (1979-01-01), Bogacki et al.
patent: 4171468 (1979-10-01), Reiner

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