Communications: electrical – Continuously variable indicating – With meter reading
Patent
1997-09-30
1999-08-10
Cuchlinski, Jr., William A.
Communications: electrical
Continuously variable indicating
With meter reading
34082531, 70276, 70277, 70278, 109 6, 109 53, 109 56, 235380, 235382, 2353825, H01B 100
Patent
active
059365447
ABSTRACT:
A modular door access control system incorporates a plurality of wireless door modules. Access request signals are transmitted to a remote access control unit. The control unit transmits access authorizing control signals to a respective one of the modules. A newly installed module, in a selected mode, enters into communication with the unit. The unit in turn transmits an identifier to the module for use in identifying itself to the unit subsequently in response to a received access request.
REFERENCES:
patent: 5491471 (1996-02-01), Stobbe
patent: 5774059 (1998-06-01), Henry et al.
Charlesbois Dennis
Conforti Frederick J.
Gonzales Eric V.
Ng Ming
Varilla Cornelio M.
Beaulieu Yonel
Cuchlinski Jr. William A.
Pittway Corporation
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