Patents by Inventor Christopher E. Snyder

Christopher E. Snyder 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).

  • Generation of virtual local oscillator inputs for use in direct conversion radio systems
    Patent number: 6727764
    Abstract: The invention provides a system and method of generating a number of inputs to the mixer elements in a direct conversion (homodyne) receiver configuration using Virtual Local Oscillator (VLO) techniques. These generated inputs meet the requirement that they must have a fixed and stable phase-relationship, as well as being correctly related in terms of their power spectra relative to the operating radio (RF), intermediate (IF), and baseband frequencies of the system, and that when applied to the mixer elements they permit the mixer elements to create internally the effect of applying the Local Oscillator signal at a suitable frequency.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: April 27, 2004
    Assignee: SiRiFIC Wireless Corporation
    Inventors: Tajinder Manku, Stephen Arnold Devison, Christopher E. Snyder
  • Generation of virtual local oscillator inputs for use in direct conversion radio systems
    Publication number: 20030169116
    Abstract: The invention provides a system and method of generating a number of inputs to the mixer elements in a direct conversion (homodyne) receiver configuration using Virtual Local Oscillator (VLO) techniques.
    Type: Application
    Filed: March 8, 2002
    Publication date: September 11, 2003
    Inventors: Tajinder Manku, Stephen Arnold Devison, Christopher E. Snyder