Patents by Inventor Philippe Marchand

Philippe Marchand 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: 5257219
    Abstract: This equalization arrangement has an input (1) for a signal to be equalized (A) and an output (30) for producing an equalized signal (B), which arrangement is formed, on one hand, by at least a correction element (5, 10) having an input for a signal to be corrected, an output for a corrected signal and a control terminal for receiving control information (10, 20) determining the correction to be made and, on the other hand, an equalization measuring circuit (22) intended to measure the equalization caused by the arrangement so as to produce said control information. An element is constituted on the basis of a hybrid circuit (50, 51) having accesses (A1) for the signal to be corrected and the corrected signal (A3) and auxiliary accesses (A2, A4) into which at least a reflecting circuit (54, 56-59) is inserted having a variable reflection as a function of said control information.
    Type: Grant
    Filed: September 18, 1991
    Date of Patent: October 26, 1993
    Assignee: U.S. Philips Corporation
    Inventor: Philippe Marchand