Patents by Inventor Lars I. Berggren

Lars I. Berggren 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 system for maintaining autonomous system clock accuracy for a mobile radio terminal
    Patent number: 7542445
    Abstract: A mobile radio terminal includes a system clock having a controller, a frequency generator for outputting a clock signal and a temperature sensor for detecting an operating temperature of the frequency generator. The controller adjusts a frequency of the clock signal by inputting a frequency generator control value associated with the detected operating temperature to the frequency generator. A control circuit that manages overall operation of the mobile radio terminal is configured to place the mobile radio in one of plural operational modes and the clock signal is used to clock an electrical component activated in connection with the one of the operational modes.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: June 2, 2009
    Assignee: Sony Ericsson Mobile Communications AB
    Inventor: Lars I. Berggren
  • METHOD AND SYSTEM FOR MAINTAINING AUTONOMOUS SYSTEM CLOCK ACCURACY FOR A MOBILE RADIO TERMINAL
    Publication number: 20070291676
    Abstract: A mobile radio terminal includes a system clock having a controller, a frequency generator for outputting a clock signal and a temperature sensor for detecting an operating temperature of the frequency generator. The controller adjusts a frequency of the clock signal by inputting a frequency generator control value associated with the detected operating temperature to the frequency generator. A control circuit that manages overall operation of the mobile radio terminal is configured to place the mobile radio in one of plural operational modes and the clock signal is used to clock an electrical component activated in connection with the one of the operational modes.
    Type: Application
    Filed: June 14, 2006
    Publication date: December 20, 2007
    Inventor: Lars I. Berggren