Patents by Inventor Johannes Hengstmengel

Johannes Hengstmengel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4750129
    Abstract: A method of and an arrangement for controlling a traffic control system comprising at least two measuring points located at a mutual distance along a traffic lane. It is determined whether the speed of a vehicle detected at one of the measuring points is less than a predetermined part of a running weighted average speed of vehicles detected in at least both measuring points. This has, inter alia, the disadvantage that a number of alarm signals are unnecessarily generated, which does not promote safety on the road. To obviate this it is determined at a measuring point, located downstream in the traffic direction, of the two above-mentioned measuring points, whether or not the speed of a vehicle detected there is less than a predetermined part of a running weighted average speed, which is exclusively determined from the vehicle speed detected at the upstream measuring point of these two measuring points.
    Type: Grant
    Filed: July 1, 1985
    Date of Patent: June 7, 1988
    Assignee: U.S. Philips Corporation
    Inventors: Johannes Hengstmengel, Johannes Vis