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Browse by Category: Main > Communications
Class Information
Number: 340/557
Name: Communications: electrical > Condition responsive indicating system > Specific condition > Intrusion detection > Disturbance of electromagnetic waves > Light > Beam > Laser
Description: Subject matter wherein the light beam source is of the coherent, stimulated emission type.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8704670 Target based smoke detection system Apr. 22, 2014
8648292 Safety photoelectric switch Feb. 11, 2014
8629938 Multi-point television motion sensor system and method Jan. 14, 2014
8600650 Navigation devices, methods, and progrmas Dec. 3, 2013
8584345 Reprocessing of a physiological sensor Nov. 19, 2013
8547238 Optically redundant fire detector for false alarm rejection Oct. 1, 2013
8542109 Foliage penetrating sensor array for intrusion detection Sep. 24, 2013
8508366 Scanning security detector Aug. 13, 2013
8471705 Method and apparatus for detecting presence of a target object via continuous laser and range of the target object via laser pulse Jun. 25, 2013
8466786 Locking mechanism with sabbath control unit Jun. 18, 2013
8436732 Fiber bragg grating perimeter security system May. 7, 2013
8432281 Portable boundary sensor system and method Apr. 30, 2013
8395492 Tire monitoring in vehicles Mar. 12, 2013
8344885 Container with interior enclosure of composite material having embedded security element Jan. 1, 2013
8325027 Safety light device Dec. 4, 2012
8284071 Door assembly including a touch sensitive portion for controlling automated door movement Oct. 9, 2012
8269628 Refrigeration case motion detector Sep. 18, 2012
8248235 Area monitoring sensor Aug. 21, 2012
8200049 Optical sensor for detecting and localizing events Jun. 12, 2012
8193936 Solar powered security system Jun. 5, 2012
8077054 Garage door opener and parking guide combination Dec. 13, 2011
8077034 Sensor for presence detection Dec. 13, 2011
8063780 Monitor area setting device for optical scanning unit Nov. 22, 2011
8035515 Security system using laser range finder and method of detecting intruder using laser range finder Oct. 11, 2011
7990269 Method and operator control unit for configuring and monitoring a device with functional safety Aug. 2, 2011
7968837 Separate-type detector with redundant synchronization feature Jun. 28, 2011
7940178 Laser area sensor May. 10, 2011
7928854 Techniques for smoke detection Apr. 19, 2011
7902979 Directed energy beam virtual fence Mar. 8, 2011
7863551 System, method and medium tracking motion of subject using laser Jan. 4, 2011
7852213 Double-end fiber optic security system for sensing intrusions Dec. 14, 2010
7852210 Motion detector for detecting tampering and method for detecting tampering Dec. 14, 2010
7783403 System and method for preventing vehicular accidents Aug. 24, 2010
7755024 Safety sensing system for a powered door system Jul. 13, 2010
7702763 Remote monitoring of computer devices Apr. 20, 2010
7667598 Method and apparatus for detecting presence and range of a target object using a common detector Feb. 23, 2010
7646944 Optical sensor with distributed sensitivity Jan. 12, 2010
7619517 Alarm for selectively detecting intrusions by persons Nov. 17, 2009
7608790 Wireless electrical control system Oct. 27, 2009
7573402 Dual laser beam guidance and parking device Aug. 11, 2009
7521662 Portable handheld artificial light detector Apr. 21, 2009
7411497 System and method for intruder detection Aug. 12, 2008
7408462 Control of monitored zone Aug. 5, 2008
7405676 Method and system for detecting with laser the passage by a vehicle of a point for monitoring on a road Jul. 29, 2008
7388467 System and method for determining a state of a door Jun. 17, 2008
7385506 Break-in detection sensor Jun. 10, 2008
7359640 Optical coupling device and method for bidirectional data communication over a common signal line Apr. 15, 2008
7359782 Vehicular impact reactive system and method Apr. 15, 2008
7323987 Compact single lens laser system for object/vehicle presence and speed determination Jan. 29, 2008
7315235 First warning system for automotive vehicles Jan. 1, 2008

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