Patents by Inventor Xavier Mariaud

Xavier Mariaud 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).

  • Device for automatically controlling a voltage applied to a data conductor in a serial link
    Patent number: 7000123
    Abstract: A self-powered peripheral apparatus is connected upstream to another apparatus via a universal serial bus (USB), wherein one of the conductors of the USB provides a supply voltage to the self-powered peripheral apparatus. One of the two data conductors of the USB is connected to a voltage source of the self-powered peripheral apparatus. The self-powered peripheral apparatus includes a control device for controlling the data conductor supply for supplying the latter only if the supply voltage is present on the supply conductor. The control device includes a circuit for detecting the supply voltage and a logic circuit for controlling the regulator.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: February 14, 2006
    Assignee: STMicroelectronics SA
    Inventors: Xavier Mariaud, Daniel Klingelschmidt
  • Apparatus and method for processing interruptions in a data transmission over a bus
    Publication number: 20020099890
    Abstract: A circuit is provided for reducing losses of the start of a new message caused by the microcontroller of a slave apparatus being unavailable. The circuit generates an interruption signal when the slave apparatus has received and acknowledged a start of a new message but the microcontroller is unavailable because it is processing a preceding message or an application of the slave apparatus.
    Type: Application
    Filed: November 20, 2001
    Publication date: July 25, 2002
    Applicant: STMicroelectronics S.A.
    Inventors: Xavier Mariaud, Daniel Klingelschmidt
  • Device for automatically controlling a voltage applied to a data conductor in a serial link
    Publication number: 20020062456
    Abstract: A self-powered peripheral apparatus is connected upstream to another apparatus via a universal serial bus (USB), wherein one of the conductors of the USB provides a supply voltage to the self-powered peripheral apparatus. One of the two data conductors of the USB is connected to a voltage source of the self-powered peripheral apparatus. The self-powered peripheral apparatus includes a control device for controlling the data conductor supply for supplying the latter only if the supply voltage is present on the supply conductor. The control device includes a circuit for detecting the supply voltage and a logic circuit for controlling the regulator.
    Type: Application
    Filed: November 16, 2001
    Publication date: May 23, 2002
    Applicant: STMicroelectronics S.A.
    Inventors: Xavier Mariaud, Daniel Klingelschmidt