Patents Examined by Thaj Q. Tran
  • Patent number: 5532820
    Abstract: Apparatus useful in electronics for the tape recording of a video signal, which is a baseband signal of a prescribed bandwidth extending up to a prescribed maximum frequency, processes the video signal to generate a folded-spectrum video signal. The video signal is digitized and supplied to a digital band-splitting filter with a cross-over frequency at one-half said prescribed maximum frequency, for separating the digitized video signal into samples of a lower-frequency-band component and into samples of a higher-frequency-band component. A balanced modulator is connected for modulating a folding carrier wave of the prescribed maximum frequency, which modulation is done in accordance with the higher-frequency-band component to generate a balanced modulation signal; and the balanced modulation signal is linearly combined with the lower-frequency-band component to generate the folded-spectrum video signal.
    Type: Grant
    Filed: January 13, 1992
    Date of Patent: July 2, 1996
    Assignee: SamSung Electronics Co., Ltd.
    Inventors: Christopher H. Strolle, Hermann J. Weckenbrock