Patents by Inventor Adrian Mark Jones

Adrian Mark Jones 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).

  • Low noise synthesizer and method employing first tunable source and first and second reference sources
    Patent number: 7005925
    Abstract: A low noise sinusoidal signal at a desired output frequency is synchronised using a first variable frequency oscillator (1) and providing a feedback control loop around the first oscillator (1) to generate a feedback control signal in successive frequ comparison steps using second and third frequency reference signals (44, 42). Each of the second and third frequency reference signals are derived from a first frequency reference signal, the second frequency reference signal (44) being compared with the output frequency of the first oscillator (1) to generate a frequency difference signal (43), and said frequency difference signal ( being compared in frequency with the third frequency reference signal (42) to generate said feedback control signal for the first oscillator (1), the frequency of the third frequency reference signal (42) being equal to the difference of the frequency of the se frequency reference signal (44) and the desired output frequency.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: February 28, 2006
    Assignee: Aeroflex International Limited
    Inventors: David Paul Owen, Adrian Mark Jones