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Class Information
Number: 340/514
Name: Communications: electrical > Condition responsive indicating system > With particular system function (e.g., temperature compensation, calibration) > Testing
Description: Subject matter where the operativeness of the system is determined at discrete times.


Sub-classes under this class:

Class Number Class Name Patents
340/516 Automatic (e.g., periodic, start-up) 110
340/515 Simulation of condition 179


Patents under this class:
1 2 3 4 5 6 7 8 9

Patent Number Title Of Patent Date Issued
5748079 Alarm communications system with independent supervision signal analysis May. 5, 1998
5745027 Data communication system employing carrier currents, in particular for a motor vehicle Apr. 28, 1998
5734322 Communication circuit trouble checking apparatus Mar. 31, 1998
5734321 Fire protection receiver and fire protection receiver system Mar. 31, 1998
5724023 Setting device for fire alarm system Mar. 3, 1998
5721529 Individual smoke detector with stored range of acceptable sensitivity Feb. 24, 1998
5705979 Smoke detector/alarm panel interface unit Jan. 6, 1998
5701119 Lined bearing with wear sensor Dec. 23, 1997
5699043 Individual smoke detector with sensitivity calibration and monitoring Dec. 16, 1997
5686885 Sensor test method and apparatus Nov. 11, 1997
5682134 Method of operating a device for monitoring the interior of an automotive vehicle Oct. 28, 1997
5673020 Early stage fire detecting apparatus Sep. 30, 1997
5670939 Method for evaluation of the self-diagnosis of a controller in a motor vehicle Sep. 23, 1997
5654691 Auxiliary backup device of burglary alarm system Aug. 5, 1997
5652566 Alarm system Jul. 29, 1997
5640142 Alarm system testing circuit Jun. 17, 1997
5638043 Warning apparatus Jun. 10, 1997
5633626 Self-testing security sensor for monitoring closure of vault doors and the like May. 27, 1997
5627514 Fire detector and fire receiver May. 6, 1997
5625346 Enhanced capabilities of smoke detectors Apr. 29, 1997
5621394 Smoke alarm monitoring and testing system and method Apr. 15, 1997
5594417 Fire alarm system Jan. 14, 1997
5578993 Temperature compensated annunciator Nov. 26, 1996
5578989 Personal security system with system wide testing Nov. 26, 1996
5576689 Self testing personal response system with programmable timer values Nov. 19, 1996
5574423 Self-diagnostic circuit for emergency lamphead Nov. 12, 1996
5570035 Built-in self test indicator for an integrated circuit package Oct. 29, 1996
5568046 Inactive state termination tester Oct. 22, 1996
5568129 Alarm device including a self-test reminder circuit Oct. 22, 1996
5546072 Alert locator Aug. 13, 1996
5543777 Smoke detector with individual sensitivity calibration and monitoring Aug. 6, 1996
5539383 Water detection alarm Jul. 23, 1996
5532675 Alarm tester Jul. 2, 1996
5513878 Electronic system for activating a vehicle rider protection apparatus May. 7, 1996
5499012 Intrusion detector test circuit which automatically disables a detected-event indicator Mar. 12, 1996
5496658 Storage battery state-of-charge indicator Mar. 5, 1996
5497144 Testing and adjustment of scattered-light smoke detectors Mar. 5, 1996
5483223 Personal security system with end-to-end test Jan. 9, 1996
5473309 Apparatus for testing an irrigation system controller and method of testing irrigation systems Dec. 5, 1995
5467074 Personal security system with transmitter test mode Nov. 14, 1995
5459449 Method and apparatus for diagnosing shorts in a SIR system Oct. 17, 1995
5453992 Method and apparatus for selectable parallel execution of test operations Sep. 26, 1995
5450059 Detection system and method for the verification of the functioning of the detection system by instantaneous comparison of the state of a node on a receptor and a node on a detector Sep. 12, 1995
5446444 Capacitive threshold detector test circuit Aug. 29, 1995
5428343 Disaster prevention monitoring apparatus and method Jun. 27, 1995
5416466 Personal security system with fixed testing transmitters May. 16, 1995
5414409 Alarm system for detecting an audio signal when glass breakage occurs May. 9, 1995
5408218 Model based alarm coordination Apr. 18, 1995
5387899 Alarm system with monitoring circuit for detecting a cut or short in a pair of wires Feb. 7, 1995
5382944 Supervised PIR motion-detection system Jan. 17, 1995

1 2 3 4 5 6 7 8 9


 
 
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