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7609163 |
Radio frequency ID Doppler motion detector
A system and method for a radio frequency identification (RFID) reader for use in an RFID detection system. The reader has an RF source for generating RF signals. An antenna is coupled to the RF...
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7492306 |
Boundary crossing object detection system
An boundary monitoring apparatus comprising an object detection device arranged to transmit a signal into a detection region and to detect an object in said detection region upon receipt of a...
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7480208 |
Occupancy sensor assembly
An occupancy sensor is provided with a housing having an interior cavity. A switch is mounted in the interior cavity of the housing and configured for placement in the open and closed positions. A...
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7479878 |
Triboelectric, ranging, or dual use security sensor cable and method of manufacturing same
The present invention provides an inexpensive security sensor cable, a method for manufacturing of same and an overall security system for using that sensor cable. The sensor cable consists of a...
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7399127 |
Autonomous operation control system
A monitoring apparatus including a loudspeaker, a photographic camera that photographs image information on a photographic subject, a proximity sensor, and a monitoring control unit is disposed at...
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7382310 |
Method for independently setting range resolution, Doppler resolution, and processing gain of a pseudo-random coded radar system
Methods are disclosed for independently setting the range resolution, Doppler resolution, and pulse compression processing gain of a Doppler radar system. Higher Doppler resolution is achieved by...
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7375630 |
Dual technology sensor device with range gated sensitivity
A method and device for detecting an intruder in a region with increased performance and decreased false alarms. The security device has a microwave sensor and a PIR sensor operatively coupled to a...
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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...
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7307537 |
Identification tag
The invention relates to an identification chip for insertion in an object located in a liquid. The identification chip comprises an acoustic resonator ( 100 ), which exhibits a number of distinct...
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7298255 |
Sensory systems employing non-uniformly spaced waveguide sensors for determining orientation and rotational speed of objects
A sensory system for determining the orientation of an object, wherein the sensory system includes a plurality of non-uniformly spaced waveguide sensors or array(s) of waveguide sensors. The...
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7277012 |
Broad field motion detector
A motion sensing system device and method which utilize dispersed ultrasonic radiation is disclosed. The system preferably comprises a low profile sensor unit configured to couple to a ceiling...
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7199749 |
Radar detection device employing a scanning antenna system
Systems and methods for detecting a respiration signal in a target area are disclosed. Briefly described, in architecture, one embodiment of the system, among others, can be implemented as follows....
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7196636 |
Railroad crossing warning system
A highway/railroad crossing detection and warning system which uses sets of Doppler radar transmitters and receivers to detect the approach of a train coming from either direction toward a highway...
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7173537 |
Device for protecting against accidental contact and method for protecting against accidental contact of a displaceable part
The device according to the invention has a sensor ( 5 ) for generating and detecting an electromagnetic field situated in the vicinity of a moving part ( 1 ) that should not be touched. The device...
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7167008 |
Microwave sensor for object detection based on reflected microwaves
A microwave sensor transmits a plurality of microwaves of different frequencies toward a detection area and carries out an object detection operation based on reflected waves of the microwaves from...
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7129839 |
Device for monitoring an area
The present invention relates to a monitoring device ( 1 ) with a transmitter unit ( 2 ) and a receiver unit ( 3 ) for monitoring an area. Slotted cables serve as antennas. According to the...
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7126476 |
Dual sensor intruder alarm
A dual sensor intruder alarm (DSIA) for detecting an intruder in a security zone monitored by the DSIA comprising: a PIR sensor; an additional sensor, and a controller that determines an operating...
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7123145 |
Method and apparatus for analysing a signal from a movement detector for determining if movement has been detected in an area under surveillance and an anti-theft system
An anti-theft system ( 1 ) for a motor vehicle detects movement in the motor vehicle, while at the same time avoiding false alarms. A movement detector ( 2 ) comprises a transmitter circuit ( 3 )...
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7034694 |
Body motion detector
The invention provides a body motion detector that allows a user to check whether he/she makes motion with appropriate motion intensity for every motion thereby to obtain an excellent exercise...
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6922145 |
Intrusion detection, tracking, and identification method and apparatus
Overlapping range rings from a pair of non-scanning radar or sonar transducers creates a grid structure within a surveillance area defined by their overlapping beam widths. Using PN coded...
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6909369 |
Device for monitoring an area
The present invention relates to a monitoring device ( 1 ) with a transmitter unit ( 2 ) and a receiver unit ( 3 ) for monitoring an area. Slotted cables serve as antennas. According to the...
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6759954 |
Multi-dimensional vector-based occupancy sensor and method of operating same
A multiple dimension vector-based occupancy sensor. One or more sensors (for example, ultrasonic and/or infrared sensors) are used to produce one or more occupancy estimator vectors. The individual...
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6759950 |
Ultrasonic obstacle detector and method of assembling the same
A cap is fit to a sensor case having a sensor-mounting hollow portion integrally formed therewith into which an ultrasonic sensor is fit. A plate spring is fit onto an outside of the sensor case to...
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6753780 |
Vehicle occupant detection system and method using radar motion sensor
A motion sensing system and method for detecting an occupant in a vehicle with enhanced sensitivity to detect small movement, such as movement caused by heartbeat and breathing of an occupant. The...
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6734802 |
Apparatus and method for reducing power consumption in physiological condition monitors
There is disclosed an apparatus and method for reducing power consumption in physiological condition monitors that use a memory data storage device that operates in a high power mode when data is...
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6633254 |
Self-modulating remote moving target detector
A self-modulating, remote, moving target detector for intrusion alarms, vehicle detection, and remote speed and distance measurement that includes a remote continuous wave radar transceiver that is...
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6587047 |
Intrusion detector with power consumption control and method for intrusion detection
An intrusion detector having a transmitter, receiver, detector, signal processor, and control unit is disclosed. The transmitter is able to transmit waves into a defined space and has a variable...
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6552662 |
Magnetic sensor
A magnetic sensor comprises at least one first coil operatively coupled to a first portion of a vehicle seat and at least one magnetic sensing element operatively coupled to an interior portion. At...
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6509835 |
Filtering method and circuit particularly useful in doppler motion sensor devices and intrusion detector systems
A method of filtering an input signal which includes noise cyclically repeating at a known noise frequency, to substantially remove said noise from the input signal is provided. The method includes...
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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...
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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...
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6380882 |
Motion detector based on the doppler principle
A motion detector based on the Doppler principle contains a microwave module for emitting a microwave signal containing at least two frequencies into a room under surveillance and for receiving the...
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6333691 |
Motion detector
The invention relates to a motion detector or proximity switch for detecting moving objects, wherein a high frequency electromagnetic radiation is generated by a free running oscillator and...
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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...
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6239736 |
Range-gated radar motion detector
A motion detector combines an FCC approved homodyne pulsed range-gated radar ("RGR") detector (10) and a PIR detector (158). Narrow microwave pulses are transmitted at a predetermined pulse...
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6208248 |
Quick response perimeter intrusion detection sensor
An Ultra Wideband (UWB) short-range radar system is used for the detection of targets in clutter. Examples of targets on the ground include human walkers, crawlers and runners, and vehicles. The...
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6198385 |
Entering detecting system for vehicles
In an entering detecting system for vehicles, a received ultrasonic signal is amplified by an amplifier circuit so that a Doppler signal may be generated from an amplified signal and a transmission...
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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...
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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...
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6114956 |
Device and method for sensing and protection of persons and objects
An electronic device including a wave transmitter covering a determined spatial sensing field, and a wave receiver for controlling an automatic device; a radiating antenna including a waveguide...
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6081193 |
Electronic intrusion detection system for monitored environments
An electronic intrusion detection system for monitoring environments having at least one electronic sensor responsive to movements occurring in the environment and adapted to modify at least one...
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6069561 |
Automatic lamp control device
An automatic lamp control device in which a Doppler radar module, a switching unit for switching a lamp circuit on and off, a circuit configuration for evaluating Doppler radar module signals and...
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6057760 |
Method and device for detecting intruders by emitting and receiving ultrasound waves in an automobile vehicle
In accordance with the method, the received signal is quadrature demodulated by mixing it with two signals with a relative phase difference of π/2 and having the same frequency as the emitted...
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5977874 |
Relating to motion detection units
A motion detection unit for detecting motion by means of Doppler frequency shift which comprises: a microwave circuit board comprising an oscillator, a hybrid coupler circuit element and a mixer;...
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5912620 |
Combined type intrusion and attack sensing means
A combined type intrusion and attack sensing device was a microwave oscillation and Doppler detect circuit an intrusion band-pass filter, an attack band-pass filter, two comparators, two alarm...
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5903217 |
Micro motion sensor
A microwave motion sensor for detecting multiple levels of motion of a target is disclosed. The motion sensor includes a transceiver for broadcasting a signal into a predetermined area and...
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5793286 |
Combined infrasonic and infrared intrusion detection system
An intrusion and alarm sending arrangement having at least one motion sensing device and a first motion signal threshold device has an input connected to said motion sensing device for generating a...
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5760687 |
Method of and device for detecting the presence of a living being of a particular species in a space monitored by a doppler sensor
The signal delivered by a Doppler sensor is treated after amplification, filtering and digitization by: means for determining the global energy of the digitized signal; autocorrelation test means...
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5705982 |
Intrusion detection, register and indication apparatus
An apparatus for detecting intrusions into spaces of various kinds such as apartments, offices, lockers, and the like by either authorized or unauthorized persons apparatus monitors a specific...
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5684458 |
Microwave sensor with adjustable sampling frequency based on environmental conditions
An apparatus and method for varying the sampling frequency of a Doppler effect device, based on environmental conditions, is described comprising: (i) a transmitter for transmitting energy into a...
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