Patents Assigned to Kabuskiki Kaisha Kenwood
  • SSB modulation and demodulation apparatus
    Patent number: 4994769
    Abstract: In an SSB modulation/demodulation apparatus having a band-pass filter having a plurality of switchable bandwidths for restricting a signal transmission bandwidth, and a Hilbert converter constructed of a network having a pass band over all frequency ranges, the Hilbert converter is a digital Hilbert converter arranged to be set with switchable Hilbert conversion coefficients.
    Type: Grant
    Filed: June 6, 1990
    Date of Patent: February 19, 1991
    Assignee: Kabuskiki Kaisha Kenwood
    Inventor: Takahiko Kishi