Patents Examined by Kim Yen Vo
  • Patent number: 5099315
    Abstract: A Y/C separation circuit for separating the Y and C components of a composite video signal having a horizontal scan period, which includes an input circuit for receiving the composite video signal, a first delay which receives the composite video signal and delays the composite video signal by an amount equal to an integer times the horizontal scan period, a second delay which receives the delayed output signal from the first delay and delays delayed output signal by an amount equal to an integral plus one times the horizontal scan period, a C component extraction circuit which receives the composite video signal and the output from the first and second delays and outputs a C component signal representing the C component of the composite video signal and a Y component extraction circuit which receives the composite video signal from the input circuit and the C component signal from the C component extraction circuit and generates a Y component signal representing the Y component of the composite video signal
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: March 24, 1992
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takashi Koga, Toshikazu Fujii