Communications: electrical – Condition responsive indicating system – With particular coupling link
Patent
1998-07-16
1999-09-07
Hofsass, Jeffery A.
Communications: electrical
Condition responsive indicating system
With particular coupling link
340287, 340577, 340588, G08B 108
Patent
active
059493321
ABSTRACT:
A fire alarm radio transmitter and receiver set is provided with a radio transmitter and a radio receiver. The radio transmitter has a plurality of temperature sensors, a first memory keeping data including an address of a building, a first controller for generating transmission data by combining the data and an identification code and for allowing an alarm to emit an alarm signal, a frequency generator for generating a frequency radio signal and for mixing the frequency radio signal with the transmission data and a transmitter for transmitting the transmission data. The radio receiver has a receiver for filtering the transmission data to detect desired data and for reading the identification code contained in the desired data and for comparing the identification code with registered codes, a display device for displaying the desired data on a screen, a second memory in which the desired data are stored, a notice alarm for emitting an alarm signal, and a second controller which allows the display device to display the desired data and saves the desired data in the second memory and activates the notice alarm, when the identification code contained in the desired data agrees with one of the registered codes.
REFERENCES:
patent: 4803469 (1989-02-01), Matsushita
patent: 5166664 (1992-11-01), Fish
patent: 5272465 (1993-12-01), Meeres, Jr.
patent: 5283549 (1994-02-01), Mehaffey et al.
patent: 5381136 (1995-01-01), Powers et al.
patent: 5382943 (1995-01-01), Tanaka
patent: 5461365 (1995-10-01), Schlager et al.
patent: 5500639 (1996-03-01), Walley et al.
patent: 5543778 (1996-08-01), Stouffer
patent: 5595342 (1997-01-01), McNair et al.
patent: 5650770 (1997-07-01), Schlager et al.
patent: 5686885 (1997-11-01), Bergman
Hofsass Jeffery A.
Kim Jae-Hoon
Trieu Van T.
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