Patents by Inventor Mark Liang

Mark Liang 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).

  • Modulating module incorporating a harmonically distorted modulator, and frequency shifting module with a harmonic mixer
    Publication number: 20030201837
    Abstract: A modulating module includes a modulator unit having a harmonically distorted modulator output adapted to be modulated by an input signal and containing a fundamental frequency component and harmonic frequency components, a power amplifier connected to the modulator unit, and a filter unit connected to the power amplifier for filtering the modulator output so as to permit only one predetermined harmonic frequency component to pass therethrough. In addition, a mixer device of a frequency shifting module includes a mixer unit adapted to receive an input signal with an input frequency, and a local oscillator connected to the mixer unit for generating an oscillator output with a local frequency. The mixer device mixes the input signal with a predetermined harmonic order of the oscillator output to result in an output signal with an intermediate frequency.
    Type: Application
    Filed: July 9, 2002
    Publication date: October 30, 2003
    Applicant: Chung-Hsin Electric & Machinery Mfg. Corp.
    Inventors: Wei Ma, Mark Liang