Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 8125336 | Abnormality detecting apparatus An abnormality detecting apparatus includes a power supply portion applying a voltage to electrodes provided at both surfaces of a light control glass adapted to be provided at a vehicle to change a transparency of the light control glass, a detection portion detect... | 02/28/2012 |
| 8035514 | Method to improve white light immunity of infrared motion detectors A system and method for improved white light immunity for IR motion sensors. The system comprises a first sensor responsive to light in a first range of wavelengths in the secure area, the first sensor generating a first output signal indicative of a first detected ... | 10/11/2011 |
| 7852213 | Double-end fiber optic security system for sensing intrusions A security system is disclosed for detecting intrusions at a plurality of predetermined locations having moveable closure members. The system comprises a plurality of intrusion sensors disposed at the locations for detecting movement of the closure members. Primary ... | 12/14/2010 |
| 7667598 | Method and apparatus for detecting presence and range of a target object using a common detector A multifunction detector for detecting energy reflected from the surface, the detector comprising: a focal plane array in communication with the optical receiving path; and an optical receiving path; a read-only integrated circuit in communication with the optical r... | 02/23/2010 |
| 7522044 | Monitoring process and system A monitoring system includes a transmitter (102) with two transmit modules (208, 210) and a receiver (104) with two receive modules (212, 214). Each of the transmit modules (208, 210) generates an optical signal modulated at a uniq... | 04/21/2009 |
| 7511615 | Self-operated perimeter intrusion detection system An anti-intruder system which sets up an alarm when being breached, the system comprises of plurality of posts deployed apart forming a peripheral fence, each post carries at least a master optical array and a slave optical array, each optical array has a multiplici... | 03/31/2009 |
| 7482924 | Cargo container security system communications A system and method for detecting radiation from a source in a container is disclosed. A continuous optical fiber path is disposed in a medium which is part of or associated with a container and which encloses the volumetric space of the container. The optical fiber... | 01/27/2009 |
| 7436316 | Method and system to detect tampering using light detector An optical anti-tamper system including a light emitting layer located within a chassis, a light detecting layer located within the chassis and one or more detectors optically coupled to the light detecting layer. The one or more detectors are in communication with ... | 10/14/2008 |
| 7429915 | System and method for detecting unauthorized access to electronic equipment or components An improved system and method for protecting sensitive electronic equipment or components against unauthorized access, by detecting and also reacting to unauthorized intrusions into the enclosures for the sensitive electronic equipment or components is disclosed. Fo... | 09/30/2008 |
| 7414236 | Monitoring devices and intrusion surveillance devices A security surveillance device that includes an electromagnetic wave sensor for sensing an electromagnetic wave of an external electromagnetic wave source and an anti-tampering arrangement. The anti-tampering arrangement includes a detection window forming a partiti... | 08/19/2008 |
| 7402790 | Fiber optic security system for sensing the intrusion of secured locations A sensor for a security system is disclosed to detect intrusions at one or more predetermined locations wherein each location includes a moveable member which must be moved in order to intrude the location. The system includes a fiber network routed in close proximi... | 07/22/2008 |
| 7397022 | Sensor arrangement to prevent reference light incident on side of photodiode A sensor arrangement, in particular as part of a reflection light barrier, includes a carrier as well as a photodiode, a first light emitting diode for emitting a measuring light beam, and a second light emitting diode for emitting a reference light beam, in particu... | 07/08/2008 |
| 7388486 | Method and system to detect tampering using light detector An optical anti-tamper system that includes at least one array of light sources located within a chassis and at least one array of photosensitive elements located within the chassis. The array of photosensitive elements are in communication with an alarm. The alarm ... | 06/17/2008 |
| 7385506 | Break-in detection sensor Intrusion by climbing or jumping over a fence can be detected, and intrusion is detected in a wide area without large-scale equipment. FBGs (grating sections) of different types having different refractive indexes of fiber glass are arranged at predetermined interva... | 06/10/2008 |
| 7378641 | Device and method for identifying an object in or on a closable opening The invention relates to a device and a method for identifying an object O in an opening that can be closed by means of a mobile element (12). Light is fed into at least one fiber-optic light guide (33, 34) from a light source (1, 2), and variat... | 05/27/2008 |
| 7368702 | Multi-optical-path photoelectric safety apparatus A multi-optical-path photoelectric safety apparatus or a light curtain is placed in front of a pressing machine or a folding machine. Optical paths are set as a floating blanking area B (some paths out of a large number of optical paths) in the light curtain. The op... | 05/06/2008 |
| 7362224 | Thermally sensitive array device for presence detection around automatic doors The present invention relates to a thermally sensitive array device for detecting a presence of a target object in a surveillance area. The device comprises a plurality of at least two thermally sensitive sensors provided in an array arrangement, each thermally sens... | 04/22/2008 |
| 7362215 | System and method for monitoring the surroundings of a vehicle A system and method for monitoring the surroundings of a vehicle, having sensors for detecting characteristics of the surroundings and means for processing the detected information. The sensors are optical sensors, at least two sensors are provided, the sensors oper... | 04/22/2008 |
| 7358861 | Electronic floor display with alerting Embodiments of the present invention relate to an electronic floor display system with an alerting feature to encourage persons standing near or on the floor display system to look down and observe its display. ... | 04/15/2008 |
| 7359640 | Optical coupling device and method for bidirectional data communication over a common signal line Optical coupling device operates over a bidirectional data link between at least first and second communicators, each communicating data along a common wire of the data link. The device includes at least first and second optical couplers, each including a photon flu... | 04/15/2008 |
| 7356429 | Method for remotely changing the sensitivity of a wireless sensor Apparatus for remotely changing the sensitivity of a sensor in a security system which includes at least a first sensor having at least first and second outputs corresponding respectively to first and second sensitivity settings, and programmable apparatus cooperati... | 04/08/2008 |
| 7340930 | Method for securing a machine tool and opto-electronic sensor for carrying out such a method The invention relates to a method for securing a machine tool comprising a first tool part that carries out work movements in the direction of a second tool part in order thereby to carry out a machining process on a workpiece, wherein an optoelectronic sensor monit... | 03/11/2008 |
| 7330102 | Method of customizing a vehicle with decals, a vehicle decal assembly and a vehicle customized with decals in accordance with the method A method of customizing a vehicle with decals. A first step involves securing a film of light emitting material containing a matrix of pixels to a body of a vehicle. A second step involves providing a controller having a memory in which is stored at least one graphi... | 02/12/2008 |
| 7326914 | Light grid for measuring an object A light grid for measuring an object and securing a dangerous zone of a machine has an emitting unit with individual light emitters for directing a plurality of light beams in the form of emitted light cones approximately along a lit plane. A receiving unit is space... | 02/05/2008 |
| 7326910 | Multiple-optical-axis photoelectric sensor The present invention provides a multiple-optical-axis photoelectric sensor in which an error in detection of an object caused by disturbance light is prevented easily and efficiently by adjusting a light projection/reception cycle in accordance with a state where m... | 02/05/2008 |
| 7327253 | Intruder detection and warning system An intruder detection and warning system has a plurality of infrared sensors for receiving infrared radiation from respective contiguous areas of premises in need of security. A central illumination unit including a rotatable light is operated to project a beam illu... | 02/05/2008 |
| 7321783 | Mobile entertainment and communication device A mobile entertainment and communication device in a palm-held size housing has a cellular or satellite telephone capable of wireless communication with the Internet and one or more replaceable memory card sockets for receiving a blank memory card for recording data... | 01/22/2008 |
| 7319228 | Passive infra-red detectors A passive infra-red detector including at least three sub-detectors, each sub-detector being operative to receive infra-red radiation from a corresponding one of at least three sub fields-of-view, each sub field-of-view being exclusively defined by an optical elemen... | 01/15/2008 |
| 7315241 | Enhanced perception lighting The present invention relates to an enhanced perception lighting (EPL) system for providing enhanced perception of a user's physical environment. The EPL system comprises a sensor module for detecting and sampling a physical aspect from at least one point in a physi... | 01/01/2008 |
| 7315254 | Proximity detector for night vision goggles shut-off A night vision device is disclosed. The device includes a housing that houses an intensifier tube and a proximity sensor mounted on the housing. An ON/OFF switch is operatively coupled to the intensifier tube and to the proximity sensor such that operation of the ON... | 01/01/2008 |
| 7310586 | Metal detector with data transfer A metal detector adapted to generate a transmit search signal and to receive a receive search signal, and to analyse such received search signal, wherein the detector is adapted to allow a selection of operating parameters for each of these functions, said selection... | 12/18/2007 |
| 7301136 | Method for operating a photoelectric sensor arrangement with inverting and shifting a received signal and corresponding sensor A method for operating a photoelectric sensor arrangement having a pulsed light emitting first module, a light receiving and converting second module and a level judging and/or processing third module. The method includes: s... | 11/27/2007 |
| 7292743 | Portable optical intrusion detection system There is provided a portable fiber optic cable based intrusion detection system in which support posts are driven into the earth to define a perimeter. A portably mountable fiber optic cable attenuator is installed to each support post. The fiber optic cable is wrap... | 11/06/2007 |
| 7286052 | Detector with blinders A detector mountable on either a planar wall or an interior corner and having an adjustable field of view. The detector includes first and second sensors positioned to provide a horizontal field of view defining an angle of approximately 180 degrees. At least one bl... | 10/23/2007 |
| 7268692 | Apparatus and method for monitoring hand propinquity to plural adjacent item locations Apparatus for monitoring hand propinquity to plural adjacent item locations arranged in a generally two-dimensional array including an illuminator, disposed adjacent a first edge of the two-dimensional array and generating radiation which illuminates a generally pla... | 09/11/2007 |
| 7268699 | Highway-rail grade crossing hazard mitigation A hazard mitigation system to detect an object in a highway-railway grade crossing. A structure is provided that includes a fixed foundation and a surface layer that is cushionably placed above the foundation, such that the structure is located between tracks at the... | 09/11/2007 |
| 7268682 | Room monitoring and lighting system A system for improving the safety of a room occupied by a patient includes a sensor for monitoring when the patient is out of bed. The sensor sends a signal that gives an alert to a care giver that the patient is out of bed. Lights in the room are slowly illuminated... | 09/11/2007 |
| 7265670 | Surveillance detector A surveillance detector comprising a light emitter and a light guide which is optically connected to the light emitter, which light guide includes reflectors mounted therein, a special feature being the fact that the light guide is capable of converting the light fr... | 09/04/2007 |
| 7259658 | Passive infrared sensor and obstacle detection system used in the same According to one embodiment of a passive infrared sensor, a passive infrared sensor 1 where an infrared sensing element 5 and an optical system 4 that sets a detection area A1 of the infrared sensing element 5 are covered with a co... | 08/21/2007 |
| 7253890 | Door obstacle sensor A door obstacle sensor in which an optical transmitter and a receiver are located on the same side of an entranceway, and a retroreflector is placed on the opposite side. A controller measures the time of flight of a light beam that is reflected from the retroreflec... | 08/07/2007 |
