U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Method for the processing of a signal from an alarm and alarms with means for carrying out said method

Patent 6879253 Issued on April 12, 2005. Estimated Expiration Date: Icon_subject March 6, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Method for analyzing the signals of a danger alarm system and danger alarm system for implementing said method
Patent #: 6011464
Issued on: 01/04/2000
Inventor: Thuillard

Fire alarm system with discrimination between smoke and non-smoke phenomena Patent #: 6150935
Issued on: 11/21/2000
Inventor: Anderson

Inventor

Assignee

Application

No. 10019362 filed on 03/06/2000

US Classes:

340/526, Predetermined rate of occurrence340/506, Alarm system supervision706/8, Fuzzy inference processing706/16Learning task

Examiners

Primary: Hofsass, Jeffery
Assistant: Blount, Eric

Attorney, Agent or Firm

International Class

G08B023/00

Abstract

The signals of a danger detector that has at least one sensor (2, 3, 4) for monitoring danger parameters and an electronic evaluation system (1) assigned to the at least one sensor (2, 3, 4) are compared with specified parameters. In addition, the signals are analysed with regard to whether they occur increasingly frequently or regularly, and signals that occur increasingly frequently or regularly are classified as interference signals. The classification of signals as interference signals triggers an appropriate adjustment of the parameters. If interference signals occur, the validity of the result of the analysis of the signals of the at least one sensor (2, 3, 4) is checked prior to the adjustment of the parameters, and the parameters are adjusted as a function of the result of said validity test.

Other References

  • Jacob et al., “Empirical Validation of the Performance of a Class of Transient Detector”, (1996), IEE XP-002144057.
  • Thuillard, “Fuzzy-wavelets: theory and applications”, (1998), EUFIT' 98, XP 000934368.
  • Ma et al., “Wavelet Transform Based Sensor Validation”, (1999), IEE XP 002144056.
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