Patents by Inventor Bob LORENZ

Bob LORENZ 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).

  • Transmitter with a reduced complexity digital up-converter
    Patent number: 9634694
    Abstract: The present disclosure is directed to a system and method for performing digital up-conversion of a signal to a desired RF carrier frequency. The system and method efficiently perform digital up-conversion of the signal, in one example, by controlling a sample clock that is used by a DAC to sample and convert the up-converted signal from the digital domain to the analog domain to have a frequency that is four or eight times the desired RF carrier frequency. By controlling the sample clock of the DAC to have a frequency that is four or eight times the desired RF carrier frequency, the system and method can be implemented using currently available IC process geometries such that the implementation consumes much less area and/or power than an analog up-converter configured to have equivalent up-conversion functionality.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: April 25, 2017
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: David Money Harris, David Garrett, Bob Lorenz
  • Transmitter with a Reduced Complexity Digital Up-Converter
    Publication number: 20150147987
    Abstract: The present disclosure is directed to a system and method for performing digital up-conversion of a signal to a desired RF carrier frequency. The system and method efficiently perform digital up-conversion of the signal, in one example, by controlling a sample clock that is used by a DAC to sample and convert the up-converted signal from the digital domain to the analog domain to have a frequency that is four or eight times the desired RF carrier frequency. By controlling the sample clock of the DAC to have a frequency that is four or eight times the desired RF carrier frequency, the system and method can be implemented using currently available IC process geometries such that the implementation consumes much less area and/or power than an analog up-converter configured to have equivalent up-conversion functionality.
    Type: Application
    Filed: January 24, 2014
    Publication date: May 28, 2015
    Applicant: Broadcom Corporation
    Inventors: David Money HARRIS, David GARRETT, Bob LORENZ