Patents by Inventor Mike Choi

Mike Choi 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).

  • High frequency synthesizer circuits and methods
    Patent number: 7522898
    Abstract: Embodiments of the present invention include a frequency synthesizer comprising a first plurality of dividers receiving a first signal having a first frequency and generating a first plurality of divided signals and a frequency combination network including a plurality of mixers, the frequency combination network receiving one or more of the first plurality of divided signals and generating a plurality of synthesized signals having different frequencies. The frequency combination network may further include additional dividers and multiplexers for more flexibility in synthesizing different frequencies. In one embodiment, the frequency combination network is coupled to dividers in the feedback path of a phase locked loop. The present invention is particularly advantageous for synthesizing frequencies above one (1) gigahertz.
    Type: Grant
    Filed: June 1, 2005
    Date of Patent: April 21, 2009
    Assignee: WiLinx Corporation
    Inventors: Mohammad E Heidari, Ahmad Mirzaei, Masoud Djafari, Mike Choi, Filipp A Baron, Alireza Mehrnia, Rahim Bagheri
  • High frequency synthesizer circuits and methods
    Publication number: 20070026816
    Abstract: Embodiments of the present invention include a frequency synthesizer comprising a first plurality of dividers receiving a first signal having a first frequency and generating a first plurality of divided signals and a frequency combination network including a plurality of mixers, the frequency combination network receiving one or more of the first plurality of divided signals and generating a plurality of synthesized signals having different frequencies. The frequency combination network may further include additional dividers and multiplexers for more flexibility in synthesizing different frequencies. In one embodiment, the frequency combination network is coupled to dividers in the feedback path of a phase locked loop. The present invention is particularly advantageous for synthesizing frequencies above one (1) gigahertz.
    Type: Application
    Filed: June 1, 2005
    Publication date: February 1, 2007
    Applicant: WiLinx, Inc.
    Inventors: Mohammad Heidari, Ahmad Mizaei, Masoud Djafari, Mike Choi, Filipp Baron, Alireza Mehrnia, Rahim Bagheri
  • Codec control
    Publication number: 20050172274
    Abstract: A method and system for a software driver of a graphics controller to work with a display codec. The software driver may be configured to work with different display codecs at different periods of time while using a default configuration. Other embodiments are also described.
    Type: Application
    Filed: February 3, 2004
    Publication date: August 4, 2005
    Inventors: Mike Choi, Robert Fosha, Scott Janus, Aaron Leatherman, Scott Rowe, Wade Thompson