Patents by Inventor Dominique Caillaud

Dominique Caillaud 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 controlling a motor vehicle windscreen wiper motor
    Patent number: 9438154
    Abstract: Method of controlling a motor vehicle windscreen wiper motor, powered and controlled by pulse width modulation (PWM) with duty ratio (T) of determined value, in which the instantaneous fundamental period of the modulated pulses is switched successively between at least two discrete period values (T1, T2), the duty ratio (T) of the pulses (PWM) being substantially established at a determined value for at least one determined duration (Tc) of switching of the modulated pulses. Application to the reduction of the EMC noise level in the radio frequency bands to be protected.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: September 6, 2016
    Assignee: Valeo Systèmes d'Essuyage
    Inventors: Dominique Caillaud, Frédéric Floquet, Pierre Pilard
  • METHOD AND DEVICE FOR CONTROLLING A MOTOR VEHICLE WINDSCREEN WIPER MOTOR
    Publication number: 20150048771
    Abstract: Method of controlling a motor vehicle windscreen wiper motor, powered and controlled by pulse width modulation (PWM) with duty ratio (T) of determined value, in which the instantaneous fundamental period of the modulated pulses is switched successively between at least two discrete period values (T1, T2), the duty ratio (T) of the pulses (PWM) being substantially established at a determined value for at least one determined duration (Tc) of switching of the modulated pulses. Application to the reduction of the EMC noise level in the radio frequency bands to be protected.
    Type: Application
    Filed: March 19, 2013
    Publication date: February 19, 2015
    Inventors: Dominique Caillaud, Frédéric Floquet, Pierre Pilard
  • Direct current motor control circuit and wiper system using said circuit
    Patent number: 7268508
    Abstract: The invention relates to a direct current motor control circuit. The invention also relates to the use thereof in a windscreen wiper system for vehicles. An MOS FET transistor with an anti-parallel diode (M3) is serially mounted on the braking system (M2) of the control circuit.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: September 11, 2007
    Assignee: Valeo Systemes d'Essuyage
    Inventors: Dominique Caillaud, Franck Vallet, Nicolas Granger
  • Direct current motor control circuit and wiper system using said circuit
    Publication number: 20060227475
    Abstract: The invention relates to a direct current motor control circuit. The invention also relates to the use thereof in a windscreen wiper system for vehicles. An MOS PET transistor with an anti-parallel diode (M3) is serially mounted on the braking system (M2) of the control circuit.
    Type: Application
    Filed: February 12, 2004
    Publication date: October 12, 2006
    Applicant: VALEO SYSTEMES d'ESSUYAGE
    Inventors: Dominique Caillaud, Franck Vallet, Nicolas Granger
  • Method for reassigning traffic in a common channel signalling system (SS7)
    Patent number: 5650998
    Abstract: A method for balancing traffic among parallel links connecting two signalling points of a Common Channel Signalling System (SS7) when one or more of the links becomes unavailable. A change-over process causes SLS (Signalling Link Selection) field values originally associated with the unavailable link to be reassigned to remaining available links on a distributed basis. A change-back process, used where a previously unavailable link is restored to service, causes SLS field values to be reassigned from the other available links to the restored link.
    Type: Grant
    Filed: May 4, 1995
    Date of Patent: July 22, 1997
    Assignee: International Business Machines Corporation
    Inventors: Eric Angenot, Muriel Baudrion, Dominique Caillaud, Valerie Gastaud, Pierre-Olivier Martin