Communications: electrical – Condition responsive indicating system – With particular coupling link
Reexamination Certificate
2005-10-17
2008-03-04
Bugg, George (Department: 2612)
Communications: electrical
Condition responsive indicating system
With particular coupling link
C340S573100, C340S628000, C455S404100
Reexamination Certificate
active
07339468
ABSTRACT:
A method of radio frequency communication for a life safety device including a controller, a hazardous condition sensor, an alarm device, and a radio frequency communications device including transmitting and receiving capability. One method includes receiving a test signal using the radio frequency communications device, lowering a voltage to the hazardous condition sensor to simulate a hazardous condition to test the hazardous condition sensor, and emitting an alarm using the alarm device if the hazardous condition sensor passes the test. Another method includes before transmitting a radio frequency signal, turning on the radio frequency communications device for a period of time, and delaying transmission if the radio frequency communications device receives a header, deadtime and startbit. Yet another method includes sending a test signal at a first transmission power level, and sending an alarm signal at a second transmission power level greater than the first transmission power level.
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pate
Andres John J.
Buchholz Matthew J.
Burnette Stan
Silver Travis
Bugg George
Merchant & Gould P.C.
Walter Kidde Portable Equipment Inc.
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