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| Number | Title | Issue Date |
| 7400236 | Vehicular lane monitoring system utilizing front and rear cameras A lane monitoring system deployed on a vehicle is provided for monitoring the position of the vehicle relative to a lane in which the vehicle is traveling. The system comprises a front camera for capturing front lane image data relating to an area substantially to t... | 07/15/2008 |
| 7287884 | Vehicle operation supporting device and vehicle operation supporting system A beam radiator that radiates visible light beams having a predetermined wavelength onto a road surface to inform drivers of other vehicles of the existence of a self-owned vehicle or to let a driver of the self-owned vehicle confirm a traveling path thereof is disp... | 10/30/2007 |
| 7209051 | Intersection assistance system and method An intersection assistance system includes at least one vehicle sensor and a gap estimator. The vehicle sensor is configured to obtain vehicle information on vehicles approaching the intersection along a main roadway. The gap estimator is configured to estimate gap ... | 04/24/2007 |
| 7146345 | Parking barrier with accident event logging and self-diagnostic control system A parking area entrance or exit barrier includes a control system which receives inputs from various accessories associated with the operation of the barrier, and which provides control signals to the various accessories of the barrier. One of the accessories includ... | 12/05/2006 |
| 7091838 | Lane deviation alarm system A lane deviation alarm system is comprised of a forward-observed-point calculating section that calculates a forward observed point by multiplying a vehicle speed of a host vehicle and an anticipated deviation time; a forward-observed-point lateral-displacement calc... | 08/15/2006 |
| 7045764 | Passive detection system for detecting a body near a door A detection system for detecting a body near a doorway includes two detectors having one or more activation lines that overlap each other. With certain mounting arrangements, the detectors cover areas within and on both sides of the doorway. The detectors are meant ... | 05/16/2006 |
| 7022943 | Engine block heater system and method of operation An engine block heating system for a vehicle and the associated method of its operation. The engine block heating system has an electrical heating element that is coupled to the vehicle's engine. A power cord is provided for supplying electricity to the electrical h... | 04/04/2006 |
| 6970103 | System and a method for event detection and storage An event detection and storage system comprising: a vehicle detection device connected to an input vehicle, a traffic sign red light detector, a registered vehicles monitoring array, a control module that manipulates an infraction film in association with the regist... | 11/29/2005 |
| 6945303 | Intruder, theft and vandalism deterrent management system for controlling a parking area A parking area control and management system employs a card reader, which reads identification information from a card commonly carried by a person, such as a driver's license or credit card. A record is made of the identification information upon entrance of a vehi... | 09/20/2005 |
| 6931995 | Train maintenance automating system An automation system for train maintenance that performs operations related to train maintenance without human intervention is provided. The automation system for train maintenance comprises a refuse reservoir (10), a sewage tank (20), a water tank ( | 08/23/2005 |
| 6919823 | Image recording apparatus and method An image recording apparatus is disclosed for recording traffic signal violations such as a traffic light signal changing to a red light. The apparatus includes a capturing unit for capturing a first image substantially at an instant of time that a control signal ch... | 07/19/2005 |
| 6911829 | Inductive signature measurement circuit An apparatus for measuring the inductance of a wire-loop with noise-cancellation, auto-calibration and wireless communication features, or detector circuit. The apparatus measures the effective change in inductance induced in a wire-loop as a vehicle passes over the... | 06/28/2005 |
| 6728393 | Vehicle lamp control A system and method of automatically controlling vehicle headlamps including an image sensor and a controller to generate headlamp control signals. ... | 04/27/2004 |
| 6714139 | Periphery monitoring device for motor vehicle and recording medium containing program for determining danger of collision for motor vehicle The positions of an object on the sideward position of a vehicle are detected at prescribed time intervals. An expected locus of the object is computed on the basis of the positions of the object detected at the prescribed time intervals. An expected locus of the ve... | 03/30/2004 |
| 6662090 | Protective maintenance service system for vehicles The present invention provides a protective maintenance service system capable of raising an alarm for the replacement of a part when the degradation of an inspection required part reaches the prescribed criteria of replacement. Of the respective inspecti... | 12/09/2003 |
| 6563431 | Automatic garage door system and method An automatic garage door system includes a controller. The controller receives information on the vehicle's position from a vehicle parking unit. When the automatic system is on, the system determines if the garage door is open via a garage door position ... | 05/13/2003 |
| 6484133 | Sensor response rate accelerator An apparatus and method for sensor signal prediction and for improving sensor signal response time, is disclosed. An adaptive filter or an artificial neural network is utilized to provide predictive sensor signal output and is further used to reduce senso... | 11/19/2002 |
| 6377191 | System for assisting traffic safety of vehicles A system for assisting the traffic safety of vehicles for improving the visibility, including a camera monitoring the road of an oncoming lane of a vehicle making a right turn at an intersection; a display board placed at a position above the road leading... | 04/23/2002 |
| 6373402 | Method and apparatus for photographing traffic in an intersection An apparatus of the invention includes a device for triggering a camera to photograph a vehicle within a traffic intersection, where the triggering of the camera is dependent on the speed of the vehicle before entering the intersection and may also be dep... | 04/16/2002 |
| 6301544 | Traffic monitoring system A traffic management systems, combining different monitoring capabilities, beginning with standard WIM (Weigh in Motion) systems for axle weight measurements, combined with tire pressure monitoring in motion and suspension monitoring in motion, whereby fo... | 10/09/2001 |
| 6243027 | System correlating the route of travel of an emergency vehicle with a railroad crossing A system for correlating the route of travel of an emergency vehicle with a railroad crossing by, when the crossing is blocked, sensing the presence of a train and communicating between the railroad crossing, police stations, fire stations, and an emergen... | 06/05/2001 |
| 6111523 | Method and apparatus for photographing traffic in an intersection An apparatus of the invention includes a device for triggering a camera to photograph a vehicle within a traffic intersection, where the triggering of the camera is dependent on the speed of the vehicle before entering the intersection and may also be dep... | 08/29/2000 |
| 6100820 | Vehicle detector with at least one inductive loop as a sensor, and a method for performing vehicle detection A vehicle detectors with at least one inductive loop is used as a sensor. An oscillator circuit comprises a fixed-frequency oscillator, which is directly connected to one of the inductive loops' two terminals, for purposes of exciting said loop. In additi... | 08/08/2000 |
| 5942993 | Lane change detecting system for mobile bodies and mobile body detecting device employed in such system A lane change detecting system includes an emission unit for emitting a predetermined signal, the emission unit being provided in a boundary between lanes of a road so that the predetermined signal emitted by the emission unit is affected by a mobile body... | 08/24/1999 |
| 5751225 | Vehicle detector system with presence mode counting A detector system filters the effects of periodic noise such as magnetic flux from nearby power lines or other periodic sources. The detector system further adapts in the case that the system incorporates microloops for the inductive sensors. The detector... | 05/12/1998 |
| 5734337 | Vehicle speed monitoring system A method for determining the speed of a vehicle using a camera. The method automatically compensates an apparent speed determination for inaccuracies due to the position of the camera with respect to the vehicle. The invention also includes a method for c... | 03/31/1998 |
| 5623244 | Pilot vehicle which is useful for monitoring hazardous conditions on railroad tracks A self-propelled remotely controlled pilot vehicle adapted for use on raiad tracks to monitor hazardous conditions and obstacles on the railroad tracks. The pilot vehicle precedes a train along the railroad tracks at a distance which will allow the train... | 04/22/1997 |
| 5557268 | Automatic vehicle recognition and customer automobile diagnostic system The present invention is a system and method for identifying a vehicle for the purpose of displaying diagnostic information to the driver. Each vehicle includes a transponder that transmits an encoded character sequence that is unique to that vehicle. In ... | 09/17/1996 |
| 5467084 | Vehicle position determining apparatus Apparatus for determining the position of a mobile vehicle relative to a fixed location marker device which comprises a coil energized to emit a magnetic field composed of lines of magnetic flux extending radially and arcuately from the ends of the coil's... | 11/14/1995 |
| 5337039 | Proximity detection system with digital frequency variation detection means An oscillator which produces a continuous wave output signal on an antenna having a preset frequency. A detection circuit detects changes in the preset frequency resulting from proximity between the antenna and an object and when such an object is detecte... | 08/09/1994 |
| 5175529 | Fast event detector A fast acting sensing circuit for use in a warning system to indicate relative movement between an object and a sensor when the movement exceeds a predetermined rate of speed. The circuit only provides an output if the rate of speed exceeds the predetermi... | 12/29/1992 |
| 4862162 | Environmental tracking in inductance loop vehicle detection systems In a vehicle presence detection system in which an inductive sensor loop is the frequency-determining element of the tuned circuit of a loop oscillator, discrimination against variations in inductance due to environmental changes is achieved by comparing ... | 08/29/1989 |
| 4581700 | Processing system for grade crossing warning A railroad train moving along an approach to a grade crossing (or other location of interest) is detected by apparatus that is responsive to the change in effective track impedance caused by the moving shunt. A constant current AC signal is applied to the... | 04/08/1986 |
| 4302746 | Self-powered vehicle detection system An improved self-powered vehicle detector (SPVD) uses a two-axis magnetomr to sense a vehicle's magnetic signature and then telemeter vehicle presence information to a roadside receiver. The SPVD system includes digital nulling loops to cancel D.C. offse... | 11/24/1981 |
| 4296401 | Inductive vehicle detector An electronic vehicle detection installation of the type using a detector loop laid in the roadway senses changes in the inductive time constant of the loop. The changes are sensed by determining the phase difference between a voltage impressed on the loo... | 10/20/1981 |
| 3989932 | Inductive loop vehicle detector Apparatus for use in combination with an inductive loop for detecting metal objects, e.g. vehicles, in the immediate vicinity of said loop. The loop may, for example, be a coil of wire buried in a roadway in a plane parallel to the roadway surface. Oscill... | 11/02/1976 |
