Patents by Inventor Chris Mamaril

Chris Mamaril 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).

  • Frequency reference signal generating system and method for frequency synthesizers
    Patent number: 8310315
    Abstract: A system for generating a frequency reference signal comprising an oscillator, a direct digital synthesizer coupled to the oscillator and configured to receive a signal output from the oscillator, a digital to analog converter coupled to the direct digital synthesizer and configured to receive a sampled signal from the direct digital synthesizer and to convert the sampled signal to an analog waveform, and a bandpass filter coupled to the digital to analog converter and configured to select an aliased output signal from the digital to analog converter at a Nyquist zone other than a first Nyquist zone and to output the frequency reference signal.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: November 13, 2012
    Assignee: Comtech EF Data Corp.
    Inventors: Chris Mamaril, Tiberiu Artzi, Terry Richmond