Method for checking data for errors in data communication systems

  • US 6,088,826 A
  • Filed: 08/21/1997
  • Issued: 07/11/2000
  • Est. Priority Date: 08/21/1997
  • Status: Expired due to Term
First Claim
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1. A data communication method between a source and a destination, comprising the steps of:

  • evaluating, by the source, a data frame to determine vulnerability of the data therein;

    setting, by the source, a flag to a first state to indicate vulnerable data which should be checked for errors by the destination;

    setting, by the source, the flag to a second state to indicate invulnerable data which should not be checked for errors by the destination;

    reading the flag at the destination;

    performing, at the destination, error detection on frames for which the flag is set to the first state; and

    not performing, at the destination, error detection on frames for which the flag is set to the second state,wherein when error detection is performed on a plurality of frames and where at least a fixed percentage of the plurality of frames do not have an error located therein, the destination notifies the source to make its criteria for determining vulnerability of any data frame more stringent.

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