Patents by Inventor Wilhelmus H. C. A. van de Ven

Wilhelmus H. C. A. van de Ven 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).

  • Line standard conversion circuit for a television signal
    Patent number: 4492976
    Abstract: A television receiving system for converting a video signal of one line standard to a video signal of another line standard. A field delay circuit is provided which separates the video signal of the one line standard into a high frequency and low frequency portion. The low frequency portion of the signal is processed to have a delay during one field different from the delay of a subsequent field. Independent processing means for the high frequency portion of the separated signal is provided. The processed high frequency and low frequency signals are combined to provide a video signal for converting to a different line standard. By processing the high frequency and low frequency portions of the video signal differently, a savings in hardware components is realized without material degradation in performance.
    Type: Grant
    Filed: September 10, 1982
    Date of Patent: January 8, 1985
    Assignee: U.S. Philips Corporation
    Inventors: Marinus C. W. vanBuul, Johannes G. Raven, Wilhelmus H. C. A. van de Ven