Alarm system

Communications: electrical – Condition responsive indicating system – With particular coupling link

Reexamination Certificate

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Details

C340S309160, C340S398100, C340S541000, C702S187000

Reexamination Certificate

active

07030754

ABSTRACT:
A transmitter comprises a signaling history information transmission unit. After the transmitter generates a detection signal, the signaling history information transmission unit sends corresponding signaling history information to a regular signal transmission unit. From this regular signal transmission unit, the signaling history information and a regular signal are transmitted to a receiver. The signaling history information contains a count value which is updated at every transmission of the information. Even if the transmitter generates a detection signal during a communication failure, the receiver can identify a time when the transmitter generated the detection signal, based on a received count value.

REFERENCES:
patent: 3848231 (1974-11-01), Wootton
patent: 4347501 (1982-08-01), Akerberg
patent: 4623876 (1986-11-01), Shima et al.
patent: 4772876 (1988-09-01), Laud
patent: 4797663 (1989-01-01), Rios
patent: 5155469 (1992-10-01), Hartmann et al.
patent: 5559496 (1996-09-01), Dubats
patent: 5570079 (1996-10-01), Dockery
patent: 5638046 (1997-06-01), Malinowski
patent: 6661340 (2003-12-01), Saylor et al.
patent: 2 748 340 (1997-11-01), None
patent: 8-69590 (1996-03-01), None
patent: 408069590 (1996-03-01), None
patent: 11-272970 (1999-10-01), None
Definition of “history”. The American Heritage of the English Language: Fourth Edition. 2000.

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