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Class Information
Number: 250/349
Name: Radiant energy > Invisible radiant energy responsive electric signalling > Infrared responsive > Plural signalling means
Description: Subject matter having two or more infrared responsive electric signalling means.


Sub-classes under this class:

Class Number Class Name Patents
250/350 With periodic beam varying means 36


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

Patent Number Title Of Patent Date Issued
7378657 Small detector array for infrared imaging microscope May. 27, 2008
7362224 Thermally sensitive array device for presence detection around automatic doors Apr. 22, 2008
RE40249 Infrared imaging system employing on-focal plane nonuniformity correction Apr. 22, 2008
7319228 Passive infra-red detectors Jan. 15, 2008
7244939 Gas sensor Jul. 17, 2007
7236257 Jump takeoff position indicator system Jun. 26, 2007
7183912 PIR motion sensor utilizing sum and difference sensor signals Feb. 27, 2007
7180072 Method and apparatus for creating a registration network of a scene Feb. 20, 2007
7161152 Method and apparatus for reducing false alarms due to white light in a motion detection system Jan. 9, 2007
7115871 Field coverage configurable passive infrared radiation intrusion detection device Oct. 3, 2006
7071471 Device for detecting electromagnetic radiations Jul. 4, 2006
6924169 Three dimensional conical horn antenna coupled image detector and the manufacturing method thereof Aug. 2, 2005
6921899 Gas cell with reflected light bundles Jul. 26, 2005
6921900 Effective quad-detector occupancy sensors and motion detectors Jul. 26, 2005
6891503 Bolometric detector with antenna comprising a switch and imagery device comprising same May. 10, 2005
6838671 Device and method for the detection of buried objects Jan. 4, 2005
6828559 Sensor having a plurality of active areas Dec. 7, 2004
6774791 Method and apparatus for detecting moving objects, particularly intrusions Aug. 10, 2004
6756595 Effective quad-detector occupancy sensors and motion detectors Jun. 29, 2004
6753776 Presence sensing system and method Jun. 22, 2004
RE38527 Thermal-type infrared imaging device Jun. 8, 2004
6723992 Detection arrangement provided with offset compensation Apr. 20, 2004
6720560 Method and apparatus for scanning images Apr. 13, 2004
6667761 Instrument visualization system Dec. 23, 2003
6642846 Infrared intrusion detector and method Nov. 4, 2003
6617581 Radiation detector with remote temperature reference Sep. 9, 2003
6606115 Method and apparatus for monitoring the thermal characteristics of an image Aug. 12, 2003
6483112 High-throughput infrared spectroscopy Nov. 19, 2002
6459084 Area receiver with antenna-coupled infrared sensors Oct. 1, 2002
6444986 Method and apparatus for detecting an object within a heating sources's radiating beam Sep. 3, 2002
6423970 Radiation detector with remote temperature reference Jul. 23, 2002
6410916 Room temperature IR camera Jun. 25, 2002
6348863 Method and apparatus for detecting moving objects, particularly intrusions Feb. 19, 2002
6316770 Thermal detector with bolometric effect amplification Nov. 13, 2001
6313464 Infrared, multiple gas analyzer and methods for gas analysis Nov. 6, 2001
6294787 Sensor system and manufacturing process as well as self-testing process Sep. 25, 2001
6272368 Medical installation having an apparatus for acquiring the position of at least one object located in a room Aug. 7, 2001
6271523 Optical sensor system and method for monitoring consumables Aug. 7, 2001
6267501 Ambient temperature micro-bolometer control, calibration, and operation Jul. 31, 2001
6242740 Imaging system functioning on submillimeter waves Jun. 5, 2001
6218667 Sensor element with small area light detecting section of bridge structure Apr. 17, 2001
6215415 Parking aid for a motor vehicle having sensors with substantially the same detection area Apr. 10, 2001
6204502 Heat radiation detection device and presence detection apparatus using same Mar. 20, 2001
6201245 Infrared, multiple gas analyzer and methods for gas analysis Mar. 13, 2001
6191420 Infrared sensor Feb. 20, 2001
6166383 Non-dispersive infrared gas analyzer Dec. 26, 2000
6150658 Passive infrared detector Nov. 21, 2000
6150660 Staring horizon sensor Nov. 21, 2000
6121614 Pyroelectric-type IR receiving element and IR sensor using the same Sep. 19, 2000
RE36706 Microstructure design for high IR sensitivity May. 23, 2000

1 2 3 4 5 6 7 8


 
 
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