Patents by Inventor Ronald C. Sehrier

Ronald C. Sehrier 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).

  • Method and apparatus for highly accurate higher frequency signal generation and related level gauge
    Patent number: 8659472
    Abstract: An apparatus includes a stable local oscillator, which includes a first control loop. The first control loop includes a first voltage-controlled oscillator configured to generate a first output signal and a first phase-locked loop. The apparatus also includes a frequency up-converter configured to increase a frequency of the first output signal. The apparatus further includes a second control loop configured to receive the up-converted first output signal. The second control loop includes a second voltage-controlled oscillator configured to generate a second output signal and a second phase-locked loop. The second control loop may further include a mixer having a first input coupled to the frequency up-converter, a second input coupled to the second voltage-controlled oscillator, and an output coupled to the second phase-locked loop. A reference frequency source may be configured to generate a signal identifying a reference frequency and to provide that signal to the phase-locked loops.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: February 25, 2014
    Assignee: Enraf B.V.
    Inventors: Bin Sai, Ronald C. Sehrier
  • METHOD AND APPARATUS FOR HIGHLY ACCURATE HIGHER FREQUENCY SIGNAL GENERATION AND RELATED LEVEL GAUGE
    Publication number: 20100066589
    Abstract: An apparatus includes a stable local oscillator, which includes a first control loop. The first control loop includes a first voltage-controlled oscillator configured to generate a first output signal and a first phase-locked loop. The apparatus also includes a frequency up-converter configured to increase a frequency of the first output signal. The apparatus further includes a second control loop configured to receive the up-converted first output signal. The second control loop includes a second voltage-controlled oscillator configured to generate a second output signal and a second phase-locked loop. The second control loop may further include a mixer having a first input coupled to the frequency up-converter, a second input coupled to the second voltage-controlled oscillator, and an output coupled to the second phase-locked loop. A reference frequency source may be configured to generate a signal identifying a reference frequency and to provide that signal to the phase-locked loops.
    Type: Application
    Filed: August 3, 2009
    Publication date: March 18, 2010
    Applicant: Enraf B.V.
    Inventors: Bin Sai, Ronald C. Sehrier