Patents by Inventor Hervé Lapuyade

Hervé Lapuyade 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 and device for the reduction of the DC component of a signal transposed into baseband, in particular in a receiver of the direct conversion type
    Patent number: 7787853
    Abstract: A method is for reducing a DC component of an input signal transposed into baseband and being generated by a first frequency transposition stage starting from an initial signal and from a transposition signal. The method includes amplifying the transposed input signal in a first amplifier. The first amplifier receives at a DC offset compensation input, a compensation signal extracted from an output signal of a second amplifier subjected to a compensation of a offset DC voltage of the second amplifier. The method also included alternating between receiving at an input of the second amplifier, a first auxiliary signal from an auto-transposition of a transposition signal in a second frequency transposition stage and a second auxiliary signal from a transposition of the initial signal in the second frequency transposition stage with the transposition signal.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: August 31, 2010
    Assignee: STMicroelectronics SA
    Inventors: Didier Belot, Jean-Baptiste Begueret, Yann Deval, Hervé Lapuyade