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Fast packet transmission system of video data

  • US 5,140,417 A
  • Filed: 06/20/1990
  • Issued: 08/18/1992
  • Est. Priority Date: 06/20/1989
  • Status: Expired due to Fees
First Claim
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1. A video cell sending terminal for sending video cells to a transmission channel for use in a transmission system which is for packaging digital video data into a cell and transmitting the same, the terminal comprising:

  • classifying means for classifying digital video data into at least two groups of coefficients, a first of which would cause image quality a drastic damage if discarded and a second of which would cause little damage even if discarded;

    cell composing means for composing a cell with each group of coefficients;

    priority level assigning means for assigning a higher priority regarding cell discard prohibition to the cell composed of the first group of coefficients and a lower priority to the cell composed of the second group of coefficients; and

    sending means for sending out the cell which has been assigned a priority level.

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