Patents by Inventor Kenton T. T. Ho

Kenton T. T. Ho 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).

  • Patent number: 4622683
    Abstract: A clock and carrier recovery circuit, and a related method, for use in a minimum shift keying (MSK) receiver demodulator. The clock and carrier recovery circuit uses ringing filters to lock onto two frequency-doubled tone components of a received MSK signal. A signal having the same frequency as the clock is recovered by taking the difference of the outputs of the two filters. The output of each filter is then combined separately with a signal having a frequency to produce to signals, each having a frequency equal to twice the carrier frequency and having complementary amplitude modulation. These two signals are summed to cancel the amplitude modulation and the resulting sum signal, having constant amplitude and a frequency twice that of the carrier, is divided by two to recover the carrier signal.
    Type: Grant
    Filed: November 8, 1984
    Date of Patent: November 11, 1986
    Assignee: TRW Inc.
    Inventors: Jack K. Basham, Kenton T. T. Ho, Eric M. Mrozek