Boots – shoes – and leggings
Patent
1979-11-14
1982-11-23
Shaw, Gareth D.
Boots, shoes, and leggings
G06F 900, G06F 700
Patent
active
043608906
ABSTRACT:
Apparatus for a signalling system. The apparatus includes a plurality of remote control units each of which is arranged to store self-check timing data therein. This data has a value representing a predetermined period of time the expiration of which corresponds to a predetermined time of day differing from the times of day associated with at least some of the other remote control units. At or following this particular time of day, a self-check operation is initiated for communicating a self-check message, including identification number data identifying the remote control unit, to a centralized communications center. A computer at the communications center receives and processes self-check messages produced by the remote control units and operates in response to each message from a remote control unit to note the identification number data therein and, using this data, to derive self-check timing data for use by the remote control unit in the next self-check operation. The self-check timing data has a value representing a period of time the expiration of which corresponds to the same time of day at or following which the last self-check operation was initiated by the remote control unit. The new self-check timing data is communicated back to the remote control unit for use thereby in initiating the next self-check operation.
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Popular Science, Jul. 1977, "Two-Way Cable TV Protects America's Safest Town", by Dudley Lynch, Contact Corp. Brochures, Miami Beach, Florida 1979.
Fahey Robert J.
Norbedo Robert A.
GTE Laboratories Inc.
GTE Products Corp.
Mills John G.
Shaw Gareth D.
Xiarhos Peter
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