Processor for expanding a compressed video signal

  • US 4,823,201 A
  • Filed: 11/16/1987
  • Issued: 04/18/1989
  • Est. Priority Date: 11/16/1987
  • Status: Expired due to Term
First Claim
Patent Images

1. A video signal processor including:

  • input means for applying digital data representing a video image including compressed video data and pixel data, wherein a portion of said digital data is statistically encoded;

    statistical decoding means, coupled to said input means and responsive to a control signal for decoding the statistically encoded digital data provided by said input means to generate decoded digital data;

    pixel interpolating means, responsive to said control signal and to the pixel data provided by said input means for developing interpolated pixel values representing pixels in said video image which are interstitial to pixels in said video image that are represented by said pixel data;

    arithmetic data processing means, responsive to said control signal, for performing arithmetic operations on the digital data provided by said statistical decoding means and on the interpolated pixel values provided by said pixel interpolating means;

    output means, coupled to said arithmetic data output means, processing means for providing processed video data from said arithmetic data processing means as an output signal; and

    sequencing means for generating said control signal to condition said statistical decoding means, said arithmetic data processing means and said pixel interpolating means to operate simultaneously to produce decoded and decompressed pixel data as said output signal.

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