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Class 340/941 - Inductive


Subclass of Class 340 - Communications: electrical
Definition: Subject matter wherein the vehicle detector comprises measuring
No. of patents: 254
Last issue date: 03/27/2012


1              
NumberTitleIssue Date
8144034Method and apparatus reporting time-synchronized vehicular sensor waveforms from wireless vehicular sensor nodes
This application discloses using multiple wireless vehicular sensor nodes to wirelessly receive multiple, time-synchronized vehicular waveform reports from the nodes to create a time synchronized system report, and preferably a time synchronized vehicular report. Ea...
03/27/2012
7907065Device for activating inductive loop sensor of a traffic light control system
A system and method for activating vehicle sensors which are based on inductive loops. A transformer is used to couple the vehicle frame to activation circuitry. Within the activation circuitry, a voltage controlled oscillator which drives the transformer is scanned...
03/15/2011
7474233Parking control device
A vehicle detection device with a parking gate and a parking stand includes a geomagnetic field sensor in the parking stand for detecting a vehicle at the parking stand and/or a geomagnetic field sensor in the parking gate for detecting a vehicle beneath the opened ...
01/06/2009
7432827Device for activating inductive loop sensor of a traffic light control system
A system and method for activating vehicle sensors which are based on inductive loops. A voltage controlled oscillator is scanned throughout the required frequency range while a balanced mixer, low-pass filter, and detector are arranged to show the presence of a sig...
10/07/2008
7427931Method and apparatus for detecting presence of vehicle using a magnetic sensor employing a magneto-resistive effect
Method using raw signal from magneto-resistive sensor through the use of recent variance (RV) of raw signal (RS) for first-capture of first time RV crosses variance detect, second-capture start enable for first time when RS crosses above raw detect and RV above vari...
09/23/2008
7388517Method and apparatus for self-powered vehicular sensor node using magnetic sensor and radio transceiver
Vehicular sensor node, circuit apparatus and their operations are provided. Power from a power source is controlled for delivery to radio transceiver and magnetic sensor, based upon a task trigger and task identifier. The radio transceiver and the magnetic sensor ar...
06/17/2008
7382281Method and apparatus reporting a vehicular sensor waveform in a wireless vehicular sensor network
The invention includes using multiple wireless vehicular sensor nodes to wirelessly receive multiple, time-interleaved vehicular waveform reports from the nodes. Each vehicular waveform report approximates a raw vehicular sensor waveform observed by a magnetic senso...
06/03/2008
7382238Method and apparatus for operating and using wireless vehicular sensor node reporting vehicular sensor data and/or ambient conditions
Wireless Vehicular Sensor Node (WVSN) gating radio transmission of a message of the vehicle sensor state of a magnetic sensor by a vehicle-present indication. WVSN may further include ambient sensor generating and transmitting an ambient report. Alternatively, WVSN ...
06/03/2008
7382282Method and apparatus reporting time-synchronized vehicular sensor waveforms from wireless vehicular sensor nodes
The invention includes using multiple wireless vehicular sensor nodes to wirelessly receive multiple, time-synchronized vehicular waveform reports from the nodes to create a time synchronized system report, and preferably a time synchronized vehicular report. Each v...
06/03/2008
7345595Short driveway vehicle motion detector
The apparatus is a vehicle motion detection apparatus for short driveways which uses passive ferromagnetic detecting coils reacting to the fluctuation in the earth's magnetic field caused by moving vehicles. The preferred embodiment of the invention uses two sensor ...
03/18/2008
7330132Activation of an inductance loop vehicle detector
An apparatus and method for activating an inductance loop vehicle detector is disclosed, wherein a magnet is positioned within a casing and attached to a vehicle. In order to activate the inductance loop vehicle detector, the vehicle, attached magnet, and casing are...
02/12/2008
7330112Location-aware services
In some embodiments, a technique for providing location-based functionality comprises providing functionality, wherein the functionality uses information provided by a location-aware device. ...
02/12/2008
7327280Emergency vehicle traffic signal preemption system
An emergency vehicle traffic light preemption system for preemption of traffic lights at an intersection to allow safe passage of emergency vehicles. The system includes a real-time status monitor of an intersection which is relayed to a control module for transmiss...
02/05/2008
7324015System and synchronization process for inductive loops in a multilane environment
A method and system for synchronization of detection loops in a multilane environment. A plurality of loop sensors are arranged in a plurality of lanes such that loop sensors in adjacent lanes are mutually contiguous. A simultaneous synchronization signal is sent to...
01/29/2008
7324014Inductive loop detector with automatic frequency change
A system and method is disclosed to the elimination of cross talk between inductive loop detector units in a security system. The system includes appropriate devices for assigning different operational frequencies of each loop detector circuit to avoid cross talk. I...
01/29/2008
7307548Geographical information supply system and method using RFID, and traffic information supply system using RFID
A system and method for providing geographical information to a driver of a vehicle using radio frequency identification (RFID). Also provided is a traffic information supply system using RFID. The geographical information supply system includes a reader provided ne...
12/11/2007
7298261Proximity sensor
An operation section 2 is provided to a proximity sensor including: a detection section having an oscillation circuit 10; and an amplification section 2 having a function detecting a metal body using an oscillation amplitude of the oscillation c...
11/20/2007
7289040Device for detecting vehicles
A magnetic field sensor is provided alongside a roadway in order to detect vehicles. A permanent magnet is installed in the roadway at such a distance from the magnetic field sensor that the magnetic field of the permanent magnet is stronger than the geomagnetic fie...
10/30/2007
7277675Array for the contact-less transmission of electrical signals or energy
The invention is characterized by the provisions that each transmitter comprises an AC voltage or current source, respectively, as well as a plurality of inductive coupling elements supplied from said source, which elements are supplemented by at least one capacitor...
10/02/2007
7255128System and method for detecting flow in a mass flow controller
Systems and methods are provided for detecting flow in a mass flow controller (MFC). The position of a gate in the MFC is sensed or otherwise determined to monitor flow through the MFC and to immediately or nearly immediately detect a flow failure. In one embodiment...
08/14/2007
7221257Wireless communication devices, radio frequency identification devices, methods of forming a wireless communication device, and methods of forming a radio frequency identification device
Cards communication devices, and methods of forming the same and encoding visibly perceptible information on communication devices are provided. A remote intelligent communication device includes: a card-thin housing including: an upper surface; a lower surface; and...
05/22/2007
7221289System and method for operating a loop detector
The temperature of an operator circuit is measured. A relationship between the temperature of the operator circuit and characteristics of the operator circuit is determined. The relationship is applied to the measured temperature of the operator circuit to create an...
05/22/2007
7215240Noncontacting short-range communication device for slide door
A noncontacting short-range communication device for a slide door for excellently performing bidirectional data communication by electromagnetic induction coupling between the side of a vehicle body and the side of the slide door is provided. Data are transmitted an...
05/08/2007
7191081Method for correcting an oscillator frequency
A method for correcting an oscillator frequency of in particular a digital transmitter/receiver interface for transmitting measurement signals of a sensor to a control unit. The method includes outputting of a first reference frequency signal by the sensor, the firs...
03/13/2007
7187302Assessing the accuracy of road-side systems
A method of assessing the accuracy of a roadside traffic monitoring system (TMS) arranged to measure the speed and/or other parameters of vehicles passing a predetermined measurement point adjacent the TMS is disclosed. The method includes measuring the speed of eac...
03/06/2007
7161472Blind-spot warning system for an automotive vehicle
A host vehicle system includes a blind-spot warning system providing an indication to the host vehicle a target vehicle entering a blind-spot. The system includes a vehicle bus receiving various vehicle control signals, magneto-resistive sensors receiving proximity ...
01/09/2007
7158051Lane changing assist system for an automotive vehicle
A host vehicle system includes a lane change system providing an indication to the host vehicle a target vehicle entering a destination lane. The system includes arrays of magneto-resistive sensors on both sides of the vehicle receiving proximity information as a fu...
01/02/2007
7145482Method, system, and apparatus for remote data calibration of a RFID tag population
A method, system, and apparatus for remotely calibrating data symbols received by a radio frequency identification (RFID) tag population are described. Tags are interrogated by a reader, which may be located in a network of readers. The reader transmits data symbols...
12/05/2006
7132959Non-interfering vehicle detection
A technique for operating a vehicle detection system involves obtaining samples randomly from a detector of the vehicle detection system and determining the presence of a vehicle in response to the random samples. When multiple detectors are located in close proximi...
11/07/2006
7116248Vehicle detector system with synchronized operation
A vehicle detector system having a number of individual vehicle detectors each capable of sampling a plurality of vehicle loops in mutual synchronization. One detector operates as a master detector for synchronization purposes; the other detectors are operated as sl...
10/03/2006
7113098Animal accident reduction systems, methods, and apparatuses
An animal accident reduction system, method, and apparatus. The apparatus including at least some of a housing having substantially the same external size and shape of a raised reflective pavement marker, at least one input detector located within the housing, at le...
09/26/2006
7113108Emergency vehicle control system traffic loop preemption
An emergency vehicle traffic signal preemption system using existing inductive traffic loops that is either “car-active” or “car-passive”. In the “car-active” system, a passive element having position information transmits an ID tag and the position info...
09/26/2006
7109887Vehicle detector system with automatic loop checking
A method and apparatus for automatically testing the integrity of an inductive loop in a vehicle detector system. A check loop is placed adjacent each inductive loop in a multi-channel vehicle detector system. Each check loop is periodically activated by the vehicle...
09/19/2006
7098806Traffic preemption system
A traffic preemption system is described that includes onboard equipment located on a vehicle and a fleet management center in communication with the onboard equipment. The fleet management center is also in communication with a traffic management center that is in ...
08/29/2006
7084826Low cost inductor devices manufactured from conductive loaded resin-based materials
Inductors and inductive devices are formed of a conductive loaded resin-based material. The conductive loaded resin-based material comprises micron conductive powder(s), conductive fiber(s), or a combination of conductive powder and conductive fibers in a base resin...
08/01/2006
7082406Multi-stage accounting system for a fueling environment
A service station for the sale and dispensing of fuel into customers' vehicles and a method of optionally delivering a transaction accounting thereof to the customer, wherein the receipt station is located separately from the fuel dispensers. Costs to manufacture an...
07/25/2006
7079024Alert system for prevention of collisions with low visibility mobile road hazards
A presence detection system comprising, among other things, a radio transmitter and receiver is described herein. The transmitter includes a motion detection circuit, a microprocessor, and a radio frequency modulator. The motion detection circuit is configured to di...
07/18/2006
7068185System and method for reading license plates
A method for reading a license plate disposed on a vehicle includes determining whether a license plate image is required, automatically processing the license plate image in response to determining that the license plate image is required, providing at least one ve...
06/27/2006
7061440Electrically small planar antennas with inductively coupled feed
Inductively coupled antennas and methods of designing the same are disclosed. Electrically small antennas having relatively high efficiency and relatively broad bandwidth may be formed by inductively coupling an antenna loop to at least one antenna winding. Such ant...
06/13/2006
7037030Project ‘M’—vehicular inspection Rigi-Frame and crash beam
A rigid frame inspection structure (“Rigi-Frame”) and method for housing radiation, contagion, explosive, and other forms of detection and surveillance equipment, while providing crash beams that form horizontal fixed obstacles with the ability to impede vehicle...
05/02/2006
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