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| Number | Title | Issue Date |
| 4884072 | Device for photographic monitoring of cross-roads In order to ensure the photographic monitoring of cross-roads a camera (26 or 28) is provided which covers an intersection (10). An initial sensor (22) responds when a vehicle (30 or 32) goes beyond a halt line during the stop phase of the traffic lights ... | 11/28/1989 |
| 4866438 | Traffic monitoring device With a traffic monitoring device for photographic recording of vehicles exceeding a predetermined speed, the speed of the approaching traffic is measured substantially against the travelling direction. The vehicles (12) are photographed frontally when the... | 09/12/1989 |
| 4848499 | Servo-control device for steering an articulated vehicle A servo-control device for steering an articulated vehicle comprising four analog detectors (30, 31, 32, 33, 34) respectively connected to control amplifiers (30', 31', 32', 33') whose outputs are connected to the inputs (30", 31", 32", 33") of a multiple... | 07/18/1989 |
| 4847772 | Vehicle detection through image processing for traffic surveillance and control A vehicle detection system for providing data characteristic of traffic conditions includes a camera overlooking a roadway section for providing video signals representative of the field (traffic scene), and a digitizer for digitizing these signals and pr... | 07/11/1989 |
| 4839648 | Method of determining the trajectory of a body suitable for moving along a portion of a path, and apparatus for implementing the method A method of determining the trajectory of a body (1) such as a vehicle body on a relatively plane path portion (2), the method being characterized in that it consists: in forming a main real image (4) of the path portion in a plane (19) at a non-zero angl... | 06/13/1989 |
| 4813004 | Method for measuring the maximum gross weight of a motor vehicle A correlogram is initially prepared which represents a relation between the gross volume of all tries and the maximum gross weight of a motor vehicle. The maximum gross weight of the vehicle is one of important factors for determining a charge for a vehic... | 03/14/1989 |
| 4752764 | Electronic timing and recording apparatus The disclosed apparatus electronically times and records a moving object as it travels over a measured course. The apparatus is especially useful in recording and timing an athlete running over a measured course in order to determine the overall athletic ... | 06/21/1988 |
| 4734725 | Apparatus for photographing objects and/or persons simultaneously with the occurrence of a predetermined event Apparatus for photographing objects and/or persons simultaneously with the occurrence of a predetermined event wherein the apparatus is particularly adapted for photographing persons when they shoot traffic signs along highways. The impact of a bullet aga... | 03/29/1988 |
| 4709264 | Picture processing apparatus Disclosed is a picture processing apparatus comprising image pickup for taking a picture of an object and outputting picture information in the interlace system, picture information storage device for storing a first field picture information and a second... | 11/24/1987 |
| 4433325 | Optical vehicle detection system An optical vehicle detection system comprising camera means for catching the image of a vehicle running in a selected roadway lane to generate an output video signal, inquiring means for inquiring if the output video signal includes a predetermined shadow... | 02/21/1984 |
| 4214265 | Method and device for supervising the speed of an object A system for supervising the speed of an object, such as a vehicle, relative to a reference point, wherein a TV-camera is utilized. The TV-camera is mounted at the reference point and directed at a certain, preferably right angle to the direction of movem... | 07/22/1980 |
| 4173010 | Traffic sign and improved system for recording vehicle speed Sensors are positioned adjacent a roadway. Such sensors conveniently comprise pressure switches connected to two speed hoses to be run over as in a traffic counter. Alternately, photo-optical, acoustical, or magnetic field sensors can be used. The sensors... | 10/30/1979 |
| 3930735 | Traffic survey system This invention is of a traffic survey system in which an aerial photo survey transparency is first made of a significant survey area, for example, two kilometers square. The transparency is then optically scanned to check the position and size of vehicles... | 01/06/1976 |
