Security system with programmable sensor and user data input tra

Details Security system with programmable sensor and user data input tra Security system with programmable sensor and user data input tra

1986-03-10

1988-04-12

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular coupling link

340506, 340531, G08B 108, G08B 2600

Patent

active

047377704

ABSTRACT:
A family of serially programmable integrated circuit transmitters for use in various sensor and user data input transmitters of a short-range radio frequency linked security system. Each transmitter transmits two bits of data for each data frame of a pulse position encoded message format with multiples of each message being transmitted with each transmission, the number of messages depending upon the type of message. Each user data input transmitter includes means for decoding keyboard entered data, re-circulating means for storing the user entered data and programmed system parameters and means for time partitioning intra and inter-message transmissions. Each sensor transmitter includes means for storing uniquely programmed system preconditioning parameters, means for sensing and verifying alarm conditions and means for time partitioning intra and inter-message transmissions. A hand-held programming unit permits the programming of each user data input and sensor transmitter with a variety of system pre-conditioning parameters to identify the transmitter to a system controller and the type of transducer coupled to the sensor transmitter.

REFERENCES:
patent: 3848231 (1974-11-01), Wootton
patent: 4228424 (1980-10-01), Le Nay et al.
patent: 4463349 (1984-07-01), Mochida et al.
patent: 4465904 (1984-08-01), Gottsegen et al.
patent: 4581606 (1986-04-01), Mallory

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