Communications: electrical – Condition responsive indicating system – With particular system function
Patent
1987-03-30
1988-06-28
Crosland, Donnie L.
Communications: electrical
Condition responsive indicating system
With particular system function
340539, 340515, 340531, 455 67, 455 9, 455154, 455226, G08B 2900
Patent
active
047542616
ABSTRACT:
Methods and apparatus for evaluating installation of components of a wireless type of alarm system or the like that includes a plurality of satellite stations, each of which includes a sensor and associated transmitter circuitry responsive to the sensor for transmitting an alarm signal and a central station for receiving the alarm signal and operating an output device in response to the received signal. The system includes alarm signal processing circuitry that has a first (normal) mode for processing the received signal and second (installation) mode in which a characteristic of the received alarm signal is impaired so that a received signal of greater quality than in normal mode is required to operate the output device.
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patent: 4491968 (1985-01-01), Shimp
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Crosland Donnie L.
Pittway Corporation
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