Matches 51 - 100 out of 335 < 1 2 3 4 5 6 7 >
Match Document Document Title
6642846 Infrared intrusion detector and method  
An intrusion detector for detecting an intrusion into a protected space overlying a predetermined surface is provided. In one embodiment, the intrusion detector includes a housing to be mounted...
H002076 Analog video processor  
An analog video processor is disclosed for coupling a CCD target acquisition and tracking seeker to a microcomputer via a video preprocessor, having a CCD automatic light control circuit, a video...
6597287 Sensor device and method for operating a sensor device  
A sensor device, comprising a pyroelectric sensor which is set to operate in daylight, especially an infrared-based motion sensor, and an electronic evaluator. The electronic evaluator is connected...
6529129 Security sensor having disturbance detecting capability  
A security sensor 1 having a disturbance detecting capability capable of detecting the presence of an obstacle purposefully applied to the sensor 1 in an attempt to fool or tamper the sensor 1...
6498564 Tracking and monitoring system  
A tracking and monitoring system directs an infrared sensor toward a heat source such as a human body, and three-dimensionally tracks the heat source, wherein the infrared sensor has four infrared...
6486778 Presence detector and its application  
The presence detector has a passive infrared sensor for detecting the presence of persons in a room, an image sensor operating in the visible spectral range and an electronic evaluator for the...
6462663 Use of detector arrays to detect cessation of motion  
A sensor comprising an array of detectors for e.g. infrared radiation of the type for use in security or surveillance application has means for identifying the entry of an object into a first...
6445301 Electronic pest monitoring system and method  
An electronic pest monitoring system includes an electronic pest monitoring device which may be used in combination with or separate from a bait box. The electronic pest monitoring device is...
6445293 Versatile camera system for secure document transactions  
On the preferred embodiment, this system comprises two video cameras 18 and 20 , a document tray 12 performing document detection, an LCD (Liquid Crystal Display) screen 10 , a push button ...
6429774 EVALUATING UNIT FOR A DEVICE FOR DETECTING OBJECTS, IN PARTICULAR FOR MONITORING THE INTERIOR OF A MOTOR VEHICLE, AS WELL AS A DEVICE FOR DETECTING OBJECTS HAVING SUCH AN EVALUATING UNIT AND A METHOD FOR CONTROLLING SUCH A DEVICE  
A demodulator of an evaluating unit for a device for detecting objects derives a useful signal from a supplied input signal with the aid of a carrier signal. The demodulator further derives a test...
6424259 Intruder/escapee detection system and method using a distributed antenna and an array of discrete antennas  
In a detection system for detecting intruders in the vicinity of a predetermined path or line defined by a distributed antenna, for example an open transmission line, an array of discrete antennas...
6384726 Automatic pool cover safety system  
A safety system for an automatic swimming pool cover having a cover and a cover drive for extending and retracting the cover, the safety system having at least one sensor for detecting the presence...
6384414 Method and apparatus for detecting the presence of an object  
A method and apparatus for detecting and classifying an object, including a human intruder. The apparatus includes one or more passive thermal radiation sensors that generate a plurality of signals...
6377174 Intrusion detector having a sabotage surveillance device  
An intrusion detector has a housing with an infrared device disposed therein, an infrared sensor, a detector window provided in the housing wall for the passage of infrared radiation from the...
6369688 Automatic gang switch having a heat ray sensor  
The automatic gang switch having a heat ray sensor is fixedly mounted on a mounting frame having a generally rectangular opening. The length of a housing of the switch is approximately two thirds...
6356187 Passenger detection system  
A passenger detection system for detecting seating status of a passenger on a seat of a vehicle in which structure of electrodes placed on the seat is improved, is proposed. A plurality of...
6351234 Combination microwave passive infrared motion detector with anti-masking evaluation  
A motion detector of an alarm system has a microwave sensor and a passive infrared sensor, and includes signal processing logic for initiating an anti-masking evaluation upon detection of certain...
6348691 Motion detector with extra-wide angle mirrored optics  
A motion detector based on mirrored optics for use in decorative lighting fixtures. The motion detector includes a mirror assembly that may be disposed within decorative elements such as saucers...
6346705 Hidden PIR motion detector with mirrored optics  
A motion detector assembly for a decorative lighting fixture that conceals the presence of the motion detector in a decorative element integrated into the design of the lighting fixture and that...
RE37467 Alert condition system usable for personnel monitoring  
To generate an alert signal indicating that an unauthorized subject is in a first region within seven feet of a passageway, a radio transmitter is worn by the subject and received by a receiver at...
6323773 Alerting device and method for reminding a person of a risk  
An alerting device and method to remind personnel of a risk is disclosed. The device has at least two sensors, a logic controller, a power source, and an annunciator that delivers a visual message,...
6323488 Adjustable motion sensing apparatus  
An infrared motion sensing apparatus mounted within the canopy of a decorative lighting fixture where the apparatus may be vertically adjusted. The apparatus comprises a pyroelectric infrared...
6313743 Home emergency warning system  
In an autonomous emergency monitoring system, wherein the user need not carry any signaling devices whatsoever, an emergency situation can be reported to an external receiver by voice input via...
6313462 Infrared-rays detector  
In an infrared-rays detector, a pyroelectric element detects existence or movement of a human body, and the output signal of the pyroelectric element is converted to a voltage signal. Then, the...
6309090 Dual security lighting system  
A dual security system (10) includes one or more motion activated floodlights (12) installed about a premises. Motion sensors (18) are also located about the property. When the system is "armed",...
6307475 Location method and system for detecting movement within a building  
A system for detecting and tracking movement within a building has a plurality of portable microwave detector units for deploying outside the walls of the building. Each detector unit has a...
6304180 Highly versatile occupancy sensor  
An occupancy sensor is provided that can operate within an extended range of AC and DC input voltages, enabling the sensor to be used in different electrical environments. The sensor draws...
6288395 Passive infrared detection system and method with adaptive threshold and adaptive sampling  
A detection system and method are capable of reducing the occurrence of false alarms and detection failures by compensating for variations in the amplitude of a detection signal generated by a PIR...
6275163 Automatic switch dimmer device  
An occupancy sensor and an automatic dimmer are connected in series with a light source. The detection of motion in the viewing area of the sensor starts the automatic dimmer which moves from its...
6271754 Method and system for detecting intrusions into a particular region  
An intrusion detection system for detecting objects entering a particular region is comprised of a transmitter, receiver and cable assembly, wherein the transmitter and receiver are connected at...
6265972 Pet resistant pir detector  
A passive infrared sensor uses a modified lens or mirror to vertically elongate the detection zones in regions close to the sensor. This vertical elongation reduces the signal produced by a small...
6262661 Passive infrared detector  
The infrared detector contains an entrance window for infrared radiation, an infrared sensor with an evaluation circuit and an anti-masking device having an optical transmitter and an optical...
6252507 Intrusion detection system using quiet signal band detection  
In an intrusion detection system of the kind which comprises a "leaky cable" or open transmission line and is used to determine the presence of objects, things or people moving in the vicinity of...
6246321 Movement detector  
A device having an image-providing sensor, hereinafter designated as "image sensor," operating in the visible and near-infrared range, an thermal image-providing sensor, hereinafter designated as...
6246318 Modular safety switching  
6239437 Passive infrared detector  
A passive infrared detection system which has a wide angular field of view and a flat or nearly flat front surface. Input optical elements direct and/or focus incident peripheral infrared radiation...
6215398 Occupancy sensors for long-range sensing within a narrow field of view  
Occupancy sensors are presented that include a flat lens for focusing detecting beams into narrower, longer range beams than those of conventional curved lenses. A sensing circuit generates a...
6215399 Passive infrared motion detector and method  
Zones of a passive infrared (PIR) motion detector lens are staggered at close range to provide for pet immunity. In a dual sensor, dual lens configuration, the sensor signal is acted on to generate...
6208260 Personal warning method and apparatus for traveling loads  
A hazard warning system for warning personnel of potential peril within a specific warning zone, the system including a variable, ultrasonic, and/or infra-red directional transmitter directed to...
6191688 Power-on mask detection method for motion detectors  
A method for determining if a motion detector is in a masked condition at the time power is applied to the detector. When power is first applied to the motion detector it enters a mask detection...
6188318 Dual-technology intrusion detector with pet immunity  
A dual-sensing intrusion detection device for detecting an intruder comprising a PIR sensor and a microwave sensor. The device comprises PIR processing means and microwave processing means, means...
6181489 Combination lens and window retainer and housing assembly for a motion detector system  
A housing assembly includes a combination lens and window retainer, an inner optical lens, an outer optical window and a front cover. The retainer includes a middle body structure, a pair of side...
6166640 Bicolor indicator lamp for room occupancy sensor  
A bicolor indicator is provided for a lighting control system which controllably switches one or more lkighting fixtures on or off in accordance with detected motion, ambient light level and a...
6150937 Personal contact "ice breaker"  
A set of badges is distributed at a party to help attending party-goers "break the ice" with members of the opposite sex. Each girl at the party is given a badge of one type, and each boy is given...
6150948 Low-power radio frequency identification reader  
Practical battery operation of radio-frequency proximity readers is made possible by monitoring activity in the RFID reader's sensing field with a secondary detector such as a passive infrared...
6130610 Security system  
A self-contained security system is disclosed. Operatively connected to each other within a single housing are a power supply, a motion detector, a device for arming the security system and a...
6130707 Video motion detector with global insensitivity  
A motion detection system compares the differences between regions in a reference frame and regions in a subsequent frame to a threshold value. A difference frame is defined containing regions...
6127926 Intrusion sensing systems  
Vertical surface protection in a security installation is achieved by detecting disturbances in a microwave beam sent from a transmitter to a receiver, both installed substantially above the ground...
6121876 System for absorbing and or scattering superfluous radiation in an optical motion sensor  
An infrared intrusion sensing system comprises a compound lens having a plurality of lines of focus for focusing infrared radiation that enters the system onto a detector, and a window to allow...
6100803 Infrared illuminative warning detector  
An infrared illuminative warning detector including a base seat formed with at least four perforations for two light shades and two detector heads to insert in. A bulb is installed in each light...
Matches 51 - 100 out of 335 < 1 2 3 4 5 6 7 >