H - Electricity – 04 – B
Patent
H - Electricity
04
B
340/105, 342/2,
H04B 11/00 (2006.01) G08C 19/12 (2006.01) H03J 9/04 (2006.01) H04L 27/26 (2006.01)
Patent
CA 1118524
ABSTRACT OF THE DISCLOSURE A wireless remote control system has a transducer coupled to a sampling first counter for counting the frequency of incoming signals. A portion of the count distinguishes among various control signal frequencies and is supplied to a memory and a comparator. A second counter counts the number of identical comparisons of present and immediately preceding measurements, and is reset when a non-identical comparison is detected. The memory supplies the stored portion of the count to a decoder which is disabled by the second counter until a predetermined number of identical frequency comparisons have been determined, which provides noise immunity. The decoder is coupled to utilization means to activate the control function corresponding to the frequency of the control signal.
241739
Collins Johnny
Podowski Robert R.
Macrae & Co.
Zenith Radio Corporation
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