Communications: electrical – Continuously variable indicating – With meter reading
Patent
1994-07-15
1997-02-11
Zimmerman, Brian
Communications: electrical
Continuously variable indicating
With meter reading
34082569, 307 101, 307 104, H04Q 100
Patent
active
056025351
ABSTRACT:
An apparatus and method allowing a first communication distance between transmitter and receiver for substandard short range control of a vehicle security module, and a second communication distance between transmitter and receiver for standard long range control of the vehicle security module. In this manner, the receivers of numerous vehicles may be programmed all to respond to the same common code, and the short range control used to activate only the vehicle(s) immediately proximate a short range transmitter. Thereafter, the receiver of a selected vehicle may be programmed to respond to a unique code, and the long range control used to activate the receiver of the selected vehicle at a longer distance from a long range transmitter.
REFERENCES:
patent: 3760422 (1973-09-01), Zimmer et al.
patent: 4918431 (1990-04-01), Borras
patent: 5086290 (1992-02-01), Murray et al.
patent: 5109221 (1992-04-01), Lambropoulos et al.
patent: 5355525 (1994-10-01), Lindmayer et al.
patent: 5379033 (1995-01-01), Fujii et al.
patent: 5479156 (1995-12-01), Jones
Boyles William E.
Burger Philip G.
Chang David S.
The Friedkin Corporation
Zimmerman Brian
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