Communications: electrical – Digital comparator systems
Patent
1978-12-15
1980-11-04
Yusko, Donald J.
Communications: electrical
Digital comparator systems
340148, 340171R, 328 74, H04Q 910
Patent
active
042322979
ABSTRACT:
A remote control arrangement uses pulse code modulation for transmission as in infrared remote control arrangements. A feature of the arrangement is that only one quartz oscillator is necessary and is used in the receiver part. The receiver measures the first pulse width transmitted and, dependent on that, defines the measured period of a control circuit. A primary feature is that the arrangement is provided with a prepulse having a threefold pulse width before the start pulse thereby allowing the preamplifier of the receiver to be in its normal operating area when the start pulse occurs.
REFERENCES:
patent: 3686634 (1972-08-01), Malchman et al.
patent: 3855575 (1974-12-01), Leuschner et al.
patent: 3890581 (1975-06-01), Stuart et al.
patent: 3990047 (1976-11-01), Sachs et al.
patent: 4020477 (1977-04-01), Holland
patent: 4099163 (1978-07-01), Worley et al.
patent: 4121198 (1978-10-01), Tsuboi et al.
Burth Rolf-Dieter
Gerlach Albrecht
Holzmann Dieter
Lindstedt Guenter
IT&T Industries, Inc.
O'Halloran John T.
Van Der Sluys Peter C.
Yusko Donald J.
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