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Class Information
Number: 340/545.4
Name: Communications: electrical > Condition responsive indicating system > Specific condition > Intrusion detection > Door or window movement > Specified sensor > Sensing of electrical parameter (e.g., piezoelectricity or capacitance)
Description: Subject matter in which the movement is sensed according to a detected level of particular electrical power energy.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8710987 Secure data entry device Apr. 29, 2014
8633809 Electrode diversity for body-coupled communication systems Jan. 21, 2014
8421482 Anti-pinching device Apr. 16, 2013
8410932 Capacitive sensor arrangement with a sensor electrode, a screen electrode and a background electrode Apr. 2, 2013
8405506 Secure data entry device Mar. 26, 2013
8350680 System for maintaining electrically operated folding partition systems Jan. 8, 2013
8144010 Glass-break shock sensor with validation Mar. 27, 2012
8031068 System and method for detecting emplacement of improvised explosive devices Oct. 4, 2011
7961094 Perimeter monitoring techniques Jun. 14, 2011
7952366 Proximity sensor May. 31, 2011
7916019 Device for detecting the relative position of two elements via electric circuit section having mechanical function in at least one of the elements Mar. 29, 2011
7911354 Inductive position sensor Mar. 22, 2011
7912509 Method for automatically switching incoming call signal output mode from vibration to ringtone using vibration detection unit in mobile communication terminal Mar. 22, 2011
7902977 Integrated multi-spectrum intrusion threat detection device and method for operation Mar. 8, 2011
7889078 Motion activation device Feb. 15, 2011
7876107 Obstacle detection system and obstacle detection method thereof Jan. 25, 2011
7847690 System and method for detecting tampering of a utility meter Dec. 7, 2010
7782220 Proximity sensor and proximity sensing method Aug. 24, 2010
7667599 Piezoelectric cable-based monitoring system Feb. 23, 2010
7616114 Seismic sensor for a security system and security system including such a sensor Nov. 10, 2009
7567175 Monitoring apparatus for housing Jul. 28, 2009
7557590 Capacitance detection circuit and capacitance detection method Jul. 7, 2009
7492923 Method and device for detecting the occupancy state of a seat Feb. 17, 2009
7453364 Safety device system Nov. 18, 2008
7436327 Capacitive relay takeoff swimming platform sensor system Oct. 14, 2008
7378946 Post-trip bus inspection alert system May. 27, 2008
7317392 Apparatus for occupant detection Jan. 8, 2008
7310048 Method and apparatus for sensing a current in a circuit Dec. 18, 2007
7277012 Broad field motion detector Oct. 2, 2007
7218211 Vehicle-based vehicle occupant reminder using capacitive field-based sensor May. 15, 2007
7209014 Switching device actuated by a transponder Apr. 24, 2007
7176418 Cooking stove Feb. 13, 2007
7158014 Post-trip bus inspection alert system Jan. 2, 2007
7132768 Human body detecting device Nov. 7, 2006
7113091 Portable motion detector and alarm system and method Sep. 26, 2006
7106206 Capacitive occupant sensor for a vehicle seat Sep. 12, 2006
7019623 Method for detecting the position of hands on a steering wheel Mar. 28, 2006
7005973 Electrical actuator assembly for hinged vehicle safety devices Feb. 28, 2006
6927678 Fluid filled seat bladder with capacitive sensors for occupant classification and weight estimation Aug. 9, 2005
6888465 Sensor unit for detecting the wetting of a window May. 3, 2005
6853300 Saw cover safety sensing device Feb. 8, 2005
6842112 Barrier movement position sensing Jan. 11, 2005
6828908 Locator system with an implanted transponder having an organically-rechargeable battery Dec. 7, 2004
6825752 Effortless entry system and method Nov. 30, 2004
6819242 Apparatus for use with capacitive presence detection systems Nov. 16, 2004
6765481 Electrical actuator assembly for hinged vehicle safety devices Jul. 20, 2004
6737969 Wireless security sensor systems for windows and doors May. 18, 2004
6535126 Electrochromic transparency incorporating security system Mar. 18, 2003
6515441 Glass edge object detection sensor Feb. 4, 2003
6492821 Method and apparatus for detection signal processing Dec. 10, 2002

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