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Browse by Category: Main > Communications
Class Information
Number: 340/516
Name: Communications: electrical > Condition responsive indicating system > With particular system function (e.g., temperature compensation, calibration) > Testing > Automatic (e.g., periodic, start-up)
Description: Subject matter where the test is invariably performed at periodic intervals, or as a function of the energization or deenergization of the primary alarm system.


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
7539600 Transmitter May. 26, 2009
7482942 Arrangement and method for starting a machine Jan. 27, 2009
7449990 Communication protocol for interconnected hazardous condition detectors, and system employing same Nov. 11, 2008
7451002 Automated generation of transfer functions based upon machine data Nov. 11, 2008
7414533 System for placing radio frequency identification (RFID) antennas, tags and interrogators Aug. 19, 2008
7403109 Method of reducing false alarms during auto-arm Jul. 22, 2008
7286051 Providing audio indications remotely Oct. 23, 2007
7283045 System and method for semi-distributed event warning notification for individual entities, and computer program product therefor Oct. 16, 2007
7250866 Techniques for deactivating electronic article surveillance labels using energy recovery Jul. 31, 2007
7202780 Service transaction monitoring system, method and device Apr. 10, 2007
7167088 Wireless walk through test system Jan. 23, 2007
7161481 Intelligent component management for fire and other life safety systems Jan. 9, 2007
7132948 System for optimally placing radio frequency identification (RFID) antennas, tags, and interrogators Nov. 7, 2006
7079021 System to manually initiate an emergency shutdown test and collect diagnostic data in a process control environment Jul. 18, 2006
7053766 Self-testing system and method May. 30, 2006
7038582 Access control system wireless transmission link test method May. 2, 2006
6950016 Walk through test system Sep. 27, 2005
6924730 Fire door control system and method including periodic system testing Aug. 2, 2005
6903328 Sensor for automatic doors Jun. 7, 2005
6885297 Process for management of a light signaling device, and a device using this process, particularly for avionics Apr. 26, 2005
6838986 Notification of use of network-enabled device Jan. 4, 2005
6836210 Adverse condition detector having modulated test signal Dec. 28, 2004
6831555 Method and apparatus for dynamically monitoring system components in an advanced process control (APC) framework Dec. 14, 2004
6774785 Front panel light system for an electronic instrument which indicates the operating condition of the front panel lights and selected portions of the instrument Aug. 10, 2004
6737967 Wireless walk through test system May. 18, 2004
6650238 Communication path integrity supervision in a network system for automatic alarm data communication Nov. 18, 2003
6642849 Hush disable feature for photoelectric smoke alarm Nov. 4, 2003
6469623 Smoke detector maintenance and verification tool Oct. 22, 2002
6255945 Communication path integrity supervision in a network system for automatic alarm data communication Jul. 3, 2001
6064312 Method and apparatus for automatic verification of measurement probe functionality and compensation May. 16, 2000
6040770 Communication path integrity supervision in a network system for automatic alarm data communication Mar. 21, 2000
5966069 Exit sign self-testing system Oct. 12, 1999
5963850 Method and apparatus for verifying the operability of a balanced diode mixer and local oscillator combination Oct. 5, 1999
5950150 Fire/life safety system operation criteria compliance verification system and method Sep. 7, 1999
5821866 Self-diagnosing smoke detector assembly Oct. 13, 1998
5793293 Temperature sensing system for over-heat detection Aug. 11, 1998
5726637 Alarm and safeguard system Mar. 10, 1998
5724023 Setting device for fire alarm system Mar. 3, 1998
5714934 Self-checking cable type E.A.S. system Feb. 3, 1998
5708414 Sensitivity fault indication technique implemented in smoke detector system with self-diagnostic capabilities Jan. 13, 1998
5701115 Field programmable module personalities Dec. 23, 1997
5686910 Vehicular emergency message system with automatic periodic call-in Nov. 11, 1997
5640143 Occupancy sensor and method of operating same Jun. 17, 1997
5625346 Enhanced capabilities of smoke detectors Apr. 29, 1997
5568129 Alarm device including a self-test reminder circuit Oct. 22, 1996
5424800 Camera having solar battery and secondary battery Jun. 13, 1995
5173856 Vehicle data recording system Dec. 22, 1992
5172109 Method of registering a unit in a network at least one part of which is constituted from an open channel Dec. 15, 1992
5165107 Electronic delay timer and alarm system Nov. 17, 1992
5153745 Method and apparatus for compensating for illumination variations of a lamp in a document scanning system following extended lamp inactivity Oct. 6, 1992

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