Communications: electrical – Condition responsive indicating system – With particular coupling link
Reexamination Certificate
2006-03-21
2006-03-21
Lee, Benjamin C. (Department: 2632)
Communications: electrical
Condition responsive indicating system
With particular coupling link
C340S628000, C340S511000, C381S056000
Reexamination Certificate
active
07015807
ABSTRACT:
A method for detecting smoke detector alarms comprises analyzing at least two parameters of ambient sound over a period of time to detect a temporal pattern of the alarm. In one embodiment, a series of samples are taken over a period of time sufficiently long to include at least one full period of a repeating sound pattern, and the two parameters are frequency and amplitude of the loudest sound in each sample. The algorithmic analysis may be triggered by a detection algorithm that utilizes a lower amount of power than the algorithmic analysis. In other embodiments, the detection apparatus is incorporated into a conventional smoke detector that will detect both smoke and an alarm from another detector. In another embodiment, a smoke detector includes a transceiver to transmit an activation signal to neighboring smoke detectors when a fire is detected and to receive an activation signal from neighboring detectors.
REFERENCES:
patent: 4220857 (1980-09-01), Bright
patent: 4227191 (1980-10-01), Raber
patent: 4250500 (1981-02-01), Schade
patent: 4260981 (1981-04-01), Yamauchi et al.
patent: 4287509 (1981-09-01), Beggs
patent: 4365238 (1982-12-01), Kollin
patent: 4380759 (1983-04-01), Sulkoski et al.
patent: 4417235 (1983-11-01), Del Grande
patent: 4438428 (1984-03-01), Ober et al.
patent: 4777474 (1988-10-01), Clayton
patent: 4853674 (1989-08-01), Kiss
patent: 4956866 (1990-09-01), Bernstein et al.
patent: 5012223 (1991-04-01), Griebell et al.
patent: 5287411 (1994-02-01), Hill et al.
patent: 5651070 (1997-07-01), Blunt
patent: 5666331 (1997-09-01), Kollin
patent: 5686884 (1997-11-01), Larkin et al.
patent: 5691703 (1997-11-01), Roby et al.
patent: 5790050 (1998-08-01), Parker
patent: 5867105 (1999-02-01), Hajel
patent: 5889468 (1999-03-01), Banga
patent: 5898369 (1999-04-01), Godwin
patent: 5917420 (1999-06-01), Gonzalez
patent: 5990797 (1999-11-01), Zlotchenko et al.
patent: 5999089 (1999-12-01), Carlson
patent: 6087960 (2000-07-01), Kyouno et al.
patent: 6094134 (2000-07-01), Cohen
patent: 6384724 (2002-05-01), Landais
patent: 6420973 (2002-07-01), Acevedo
patent: WO00/74013 (2000-12-01), None
Flint Kelly R.
Holton Maclain M.
Klassen Michael S.
Roby Richard J.
Schemel Christopher F.
Combustion Science & Engineering, Inc.
Lee Benjamin C.
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