Patents by Inventor Johannes V. Verboom

Johannes V. Verboom 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).

  • Method of synchronizing a quadphase receiver and clock synchronization device for carrying out the method
    Patent number: 4276650
    Abstract: The invention relates to a method for the clock synchronization of a receiver for demodulating a quadphase coded data signal and to a clock synchronization device for carrying out the method.In the method according to the invention the first bit is compared (correlated) with the third bit and the second bit with the fourth bit: a high degree of correlation indicates that synchronization has been obtained and a low degree indicates absence of synchronization.
    Type: Grant
    Filed: July 11, 1979
    Date of Patent: June 30, 1981
    Assignee: U.S. Philips Corporation
    Inventors: Frank de Jager, Rudolf A. van Doorn, Johannes V. Verboom, Marino G. Carasso