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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:
Patents under this class:
| 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 |
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