Patents by Inventor Karl Robert Ward

Karl Robert Ward 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).

  • Temperature compensated oven controlled crystal oscillator
    Patent number: 7573345
    Abstract: A method provides a temperature controlled frequency source. The method reduces the effects of temperature variations on an operating frequency of the temperature controlled frequency source by temperature compensating the temperature controlled frequency source. The temperature-controlled frequency source may be an Oven-Controlled crystal oscillator (DCXO) and the temperature-controlled frequency source may be a TCXO ASIC. Analago temperature compensation may be provided by generating zero to fourth-order polynomial Chebyshev functions of temperature.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: August 11, 2009
    Assignee: Rakon UK Limited
    Inventors: Nigel David Hardy, Karl Robert Ward