Patents by Inventor Freddy Donnenwirth

Freddy Donnenwirth 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: 9419626
    Abstract: A device (110), comprising a temperature sensor (111) accesses an external time or frequency reference (121; 130) for adjusting an oscillation frequency of a VCTCXO oscillator (113). The device determines a variation in the VCTCXO oscillator's ambient temperature over a predetermined time range thanks to measurements from the temperature sensor, and adjusts a frequency, or rate, of access to the external time or frequency reference in order to obtain time or respectively frequency information for adjusting the oscillation frequency of the VCTCXO oscillator, according to the determined variation in temperature.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: August 16, 2016
    Assignee: SAGEMCOM BROADBAND SAS
    Inventors: Freddy Donnenwirth, Laurent Jourdain
  • Publication number: 20160087637
    Abstract: A device (110), comprising a temperature sensor (111) accesses an external time or frequency reference (121; 130) for adjusting an oscillation frequency of a VCTCXO oscillator (113). The device determines a variation in the VCTCXO oscillator's ambient temperature over a predetermined time range thanks to measurements from the temperature sensor, and adjusts a frequency, or rate, of access to the external time or frequency reference in order to obtain time or respectively frequency information for adjusting the oscillation frequency of the VCTCXO oscillator, according to the determined variation in temperature.
    Type: Application
    Filed: May 13, 2014
    Publication date: March 24, 2016
    Inventors: Freddy DONNENWIRTH, Laurent JOURDAIN
  • Patent number: 8976777
    Abstract: The invention relates to the field of radio communication devices and, more specifically, gateways connected firstly to a cellular radio communication network via a packet data communication network, such as an IP network, and secondly to cellular mobile communication terminals. The invention proposes to use the same oscillator to provide both the reference clock of the radio subsystem and the reference clock of the general processor of the device. The fact that the same oscillator is used for these two components also allows embodiments in which some of the functions that have hitherto been devolved to a hardware control component, itself operating by means of a clock derived from the radio oscillator and being involved in the control of said oscillator, can now be devolved to a software component that is executed on the general processor of the gateway.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: March 10, 2015
    Assignee: Sagemcom Energy & Telecom SAS
    Inventors: Laurent Jourdain, Freddy Donnenwirth, Frédéric Geheniau
  • Publication number: 20120201236
    Abstract: The invention relates to the field of radio communication devices and, more specifically, gateways connected firstly to a cellular radio communication network via a packet data communication network, such as an IP network, and secondly to cellular mobile communication terminals. The invention proposes to use the same oscillator to provide both the reference clock of the radio subsystem and the reference clock of the general processor of the device. The fact that the same oscillator is used for these two components also allows embodiments in which some of the functions that have hitherto been devolved to a hardware control component, itself operating by means of a clock derived from the radio oscillator and being involved in the control of said oscillator, can now be devolved to a software component that is executed on the general processor of the gateway.
    Type: Application
    Filed: October 12, 2010
    Publication date: August 9, 2012
    Inventors: Laurent Jourdain, Freddy Donnenwirth, Frédéric Geheniau