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6380868 Permeability-modulated carrier referencing  
An apparatus and method for measuring the inductance of a wire-loop without direct reference to any particular time-constant or frequency. Low-frequency noise induced into the wire-loop is canceled...
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...
6377167 Multi frequency photoelectric detection system  
Collision avoidance apparatus ( 28, 30 ) is mounted on a host vehicle ( 20 ) to detect the presence of an adjacent vehicle ( 22 ) within a monitored zone ( 24, 26 ). A sensor module ( 30 ) includes...
6373962 License plate information reader device for motor vehicles  
In a license plate information reader device (A) for motor vehicles, a CCD camera ( 1 ) is provided to produce video image data ( 11 ) involving a license plate obtained by photographing a front...
6373403 Apparatus and method for improving the safety of railroad systems  
An apparatus and method for improving the safety of railroad systems of the present invention includes a system for navigating a railroad vehicle over railroad tracks. An attitude sensor is used to...
6366222 Able to operate tag  
The central monitoring station electromagnet wave will transmit to satellite, return to earth and activate the electronic component on motor vehicles. The light on the license plate will then be...
6356855 Moving body detection system  
To provide a moving body detection system capable of reliably receiving response signals and discerning the arrangement of opposing moving bodies. A moving body detection system for transmitting...
6356206 Running surroundings recognizing apparatus  
A running surrounding recognizing apparatus is provided. The running surrounding recognizing apparatus is capable of accurately recognizing information in regard to running of a self-vehicle even...
6356207 DSRC car-mounted equipment  
A DSRC car-mounted equipment which self-diagnoses its communication function and informs the driver of the result, comprising a first local oscillator 30 for generating a car-mounted equipment...
6346881 Tag evaluation module for radio frequency identification (RFID) systems  
Apparatus and method of evaluating and installing a wireless system, and is suited for a radio frequency identification (RFID) system. The apparatus determines the suitability of a particular site...
6345233 Collision avoidance using GPS device and train proximity detector  
A processor ( 12 ) located on a vehicle processes GPS coordinates input thereto to provide an area of protection around the vehicle. Railroad grade crossing data ( 82, 84 ) stored in a data base (...
6344804 Vehicle-onboard ETC apparatus and method with visible/audible ETC-relevant information messaging  
A vehicle-onboard ETC apparatus mounted on a motor vehicle which informs a driver of ETC-relevant information interchanged with an ETC facility installed at a toll gate via an image as well as a...
6342844 Two-way radio-based electronic toll collection method and system for highway  
This invention relates generally to automatic radio-frequency (RF) real-time high-way toll collection from moving vehicles. It especially adapted to the use of an untraceable electronic check...
6340935 Computerized parking facility management system  
The computerized parking facility management system manages parking operations. The contour of each vehicle that enters the parking facility is captured and quantified as part of its...
6339384 Toll booth credit device  
A device for automatically paying a toll for a vehicle passing through a toll booth. The toll payment device includes a transmitting device and a switch. The transmitting device includes a receiver...
6339651 Robust identification code recognition system  
A method and system for recognizing the characters on surfaces where alphanumeric identification code (“ID” for short) may be present such as a license plate. The present system is particularly...
6337640 Inductive loop sensor for traffic detection, and traffic monitoring apparatus and method using such a loop sensor  
An inductive loop sensor for detecting vehicles travelling along a lane of a roadway comprises a figure-of-eight conducting loop. The loop is arranged with its three segments transversely across...
6333701 Vibration actuated traffic monitoring system  
A device for controlling a traffic light, where the controlling of the traffic light is dependent upon receipt and recognition of vibrations. The device includes a vibration receiver for detecting...
6329931 Loading bay dock control  
Loading bay dock control apparatus 28 includes a co-ordinator circuit 30 and activators 32 for each of the functions of the loading bay dock. Individual manual controls 38 can operate individual...
6329930 Method and apparatus for detection of a breach of a security gate  
A security gate breach detection and reporting system is disclosed, which includes a breach detector responsive to the simultaneous receipt of signals from the security gate indicative of a breach,...
6326902 Residual charge-effect traffic sensor  
A vehicular roadway sensor comprising a conductive elastomeric housing having a sensor wire groove and one or more signal wire in the sensor wire groove, the sensor wire groove comprised of an...
6326903 Emergency vehicle traffic signal pre-emption and collision avoidance system  
The present invention discloses a system that allows operators of emergency vehicles to obtain graphic data regarding other emergency vehicles that may pose threats of collision. Automatic...
6323785 Automatic railroad alarm system  
A warning system provides for notification of the approach of a track guided train to a user work area perimeter. The system includes at least one sensor, preferably a plurality of sensors, for...
6312152 Electronic module for conventional parking meter  
An electronic module for enhancing an operation of a conventional parking meter. The electronic module comprises a shell defining a hollow conformation and being attachable to a conventional...
6307484 Intersection warning system  
An intersection warning system provided in a first vehicle, includes a receiving unit receiving information about a running state of a second vehicle near a roadside edge in a sideward or rearward...
6304171 Emergency call system with battery switching function  
In an emergency call system with the battery switching function, an auxiliary battery is arranged in a vehicle, and an arithmetic calculation control unit always monitors a battery voltage (+B) of...
6304192 Authorization system and authorization method  
An authorization system for authorizing an IC card is provided. When an IC card--storing a different code from the code proper to an in-vehicle device and yet having been authorized by the...
6304193 Device for monitoring traffic  
A device for monitoring traffic is designed as a portable hand-held device and includes a measuring unit for measuring a traffic state such as speed of a vehicle, a microphone and a language or...
6300882 Vehicle-onboard DSRC apparatus  
A vehicle-onboard DSRC (dedicated short-range communication) apparatus (10A) which can ensure suppression of communication error due to difference in type of motor vehicles. The apparatus includes...
6300883 Traffic recording system  
A traffic recording system for recording vehicular traffic events on a roadway having one or more lanes of traffic has a power control unit and a timer counter. Multilane roadway sensors sense...
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...
6292110 Interactive parking facility  
An interactive system for a parking facility includes a plurality of smart light fixtures each having a detection system for detecting empty parking spaces, moving vehicles, and personnel. A...
6292112 Vehicle presence detection system  
A passive magnetic detector is provided at ground level or buried below ground level in between rails of a railroad track at a distance from the level crossing for detecting magnetic field...
6288651 Portable roadway perimeter alarm  
The portable roadway perimeter alarm has an impact sensor which may be a shock or pressure sensor that is connected to a transmitter. The impact sensor and transmitter unit is located around the...
6281808 Traffic light collision avoidance system  
A collision avoidance system and method for a traffic intersection having a traffic light, which selectively extends the duration of a red light cycle to prevent traffic from entering the...
6281809 Vehicle detector with audible call signal indicator  
A method and apparatus for visually and audibly verifying Call signal generation in a vehicle detector. A generated Call signal drives a visible display, such as a discrete LED, an LED display...
6278380 Method and apparatus for sensing vehicle  
First and second loop coils are located at respective positions separate from each other by a predetermined distance. A first electric signal is generated which depends on an inductance of the...
6275170 Universal adaptor for electronic parking meters  
A universal adaptor for use with electronic parking meters which provides these electronic parking meters with the ability to detect the presence of a parked vehicle and to adjust the position of...
6275171 Rangefinder type non-imaging traffic sensor  
A non-imaging traffic sensing system (10) employs three separate detectors (D1-D3) each positioned above a roadway (R) and spatially separated along the roadway. The detectors detect light...
6275772 Vehicle safety running system  
In a vehicle safety running system, while a contact probability estimation section estimates that there is a probability that a subject vehicle comes into contact with an object and an automatic...
6272406 Guidance system for an automated guided-vehicle  
A guidance system for guiding an automated guided vehicle along a pathway is disclosed which includes rails for holding the AGV to the generally straight portions of the pathway and a non-rail...
6259377 Process for detecting and reporting traffic situation data  
A process for detecting and reporting traffic situation data of a road system via a respective sample vehicle is provided, in which case an automatic position determination is carried out in the...
6259376 Tolling apparatus  
In a tolling apparatus including first and second vehicle sensors successively arranged along a lane of a toll way, and a communication unit having a communication area on the lane arranged to...
6252524 Vehicle-mounted unit for a toll collection system  
A vehicle-mounted unit for a toll collection system for automatically charging a toll comprises a communication zone determining means for determining if the vehicle is within a toll collection...
6252522 Billboard consumption measurement system  
A system for measuring exposure to a visual display such as a billboard. A transmitter that is proximate to the billboard broadcasts a data signal that carries information relating to the...
6252520 Mobile unit communication apparatus providing a relayed signal when error detected  
The object of the invention is to provide a mobile unit communication apparatus that can give required information of one other mobile unit to another other mobile unit which a radio signal from...
6246930 Automatic guided vehicle system and method for navigating automatic guided vehicle  
A plurality of reflectors are disposed along a travelling path, an automatic guided vehicle is started up at a position where a laser scanner can recognize four or more reflectors, and data on the...
6246342 Man-machine interface for airport traffic control purposes  
Man-machine interface (MMI) for airport traffic control purposes, in particular for safe taxiing and/or approach-departure control at an airport, having a display area on which processes and states...
6243029 Parkulator photo parking  
The invention is a method of monitoring and assessing a fee for parking a vehicle in a toll parking location where the user pays only for the actual parking time used. The invention includes...
6243644 Traffic monitoring device attached to a traffic sign  
A traffic monitoring device is comprised of a housing for mounting on an existing stop sign. A red lamp attached under the housing is for being positioned in front of the sign above the word...