Patents by Inventor Patrick Lopez

Patrick Lopez 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).

  • Publication number: 20040037232
    Abstract: Method of adjustment of a receiver of signals transmitted in bursts in a system where the communications are set up within the context of successive frames comprising slots allocatable to the transmitters for their communications with the receivers. The adjustment of at least one characteristic of the receiver allows it to adapt upon the arrival of the bursts, by taking account of at least one reinitialization parameter for a first burst or adjustment parameter computed by a computation unit (4) from the preamble of the burst currently being received.
    Type: Application
    Filed: August 7, 2003
    Publication date: February 26, 2004
    Inventors: Samuel Guillouard, Patrick Lopez
  • Patent number: 6697993
    Abstract: A method for feeding a convolutional interleaver or deinterleaver with dummy data at least until the memory of the interleaver or deinterleaver contains only dummy data, and discarding data output by the interleaver or deinterleaver during the feeding of the dummy data. The method may be implemented in transmitters or receivers.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: February 24, 2004
    Assignee: Thomson Licensing S.A.
    Inventor: Patrick Lopez
  • Publication number: 20030146038
    Abstract: A steer-by-wire steering system 10 for steering road wheels 40A and 40B on a vehicle. The steering system 10 includes a steering wheel 12 rotatable by an operator to command steering of the steered road wheels 40A and 40B, and a steering input shaft 16 mechanically linked to the steering wheel 12. A housing structure 14 is disposed proximate the steering input shaft 16. A male member 46 is provided on the housing structure, and a female receptacle 50 is formed in the steering input shaft 16 for matingly receiving the male member 46. The female receptacle 50 comprises a pair of end walls 52 and 54 for limiting rotational travel of the steering wheel 12. The steering system 10 further has an actuator 26 for rotating the wheels 40A and 40B on the vehicle in response to rotation of the steering wheel 12.
    Type: Application
    Filed: February 5, 2002
    Publication date: August 7, 2003
    Applicant: Ford Global Technologies, Inc.
    Inventors: Aaron L. Mills, Michael Patrick Lopez
  • Publication number: 20030108131
    Abstract: The method is applicable to a receiver (1) of signals corresponding to packets of digital data transmitted in bursts, which comprises an analogue pickup subassembly (3) connected to a digital processing subassembly (8) by means for converting analogue signals into digital signals (7). Gain adjustment means (5) act on the amplification means (5) in order to alter the power of signals supplied to the conversion means.
    Type: Application
    Filed: October 11, 2002
    Publication date: June 12, 2003
    Inventors: Patrick Lopez, Thomas Schwanenberger, Samuel Guillouard
  • Publication number: 20030026261
    Abstract: Concerns a method for transmission of packets in a Hiperlan 2 transmitter, comprising the steps of sending packets in an automatic repeat request mode, characterized in that it further comprises the steps of: providing the data link control layer of the transmitter with a time to live parameter applicable to at least one packet received by the data link control layer from an upper layer for determining an upper transmission time for the at least one packet; checking before transmission of the at least one packet whether upper transmission time has been reached; and sending the at least one packet only when the upper transmission time has not been reached.
    Type: Application
    Filed: August 12, 2002
    Publication date: February 6, 2003
    Inventors: Ludovic Jeanne, Patrick Lopez, Gilles Straub
  • Patent number: 6269118
    Abstract: A carrier recovery process for a received signal comprises estimating the signal carrier frequency, and estimating the signal phase after frequency estimating. During frequency estimating, signal equalizing is performed, during which an equalizer comprising a direct adaptive filter and a recursive adaptive filter adapts only the coefficients of the recursive adaptive filter. During phase estimating, the equalizer adapts only the coefficients of the recursive adaptive filter for a predetermined time.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: July 31, 2001
    Assignee: Thomson Licensing S.A.
    Inventors: Charaf Hanna, Patrick Lopez, Sylvain Chevreau