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Dual block still video compander processor

  • US 4,772,956 A
  • Filed: 06/02/1987
  • Issued: 09/20/1988
  • Est. Priority Date: 06/02/1987
  • Status: Expired due to Fees
First Claim
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1. A still video transceiver, comprising:

  • a digital video frame store memory adaptable to store plural blocks of video data;

    a dual port memory having first and second memory ports;

    means for fetching dual blocks of video data from said frame store memory and for loading said dual blocks into said dual port memory;

    digital signal processor means for accessing through said first memory port and discrete cosine transforming each one of said dual blocks to generate a corresponding block of transform coefficients;

    data processing means for accessing through said second port and compressing each block of said transform coefficients to generate a batch of compressed transform coefficients therefrom, whereby said digital signal processing means and said data processing means may operate virtually simultaneously upon different respective ones of said dual blocks.

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