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System for automatically proofreading a document

  • US 4,136,395 A
  • Filed: 12/28/1976
  • Issued: 01/23/1979
  • Est. Priority Date: 12/28/1976
  • Status: Expired due to Term
First Claim
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1. Apparatus for detecting and correcting erroneous data signals in a number of data signals comprising:

  • a source of data signals;

    means for comparing said data signals with a list of valid data signals;

    means responsive to said comparing means for indicating erroneous data signals when said erroneous data signals do not compare to said valid data signals; and

    means for correcting said erroneous data signals operative such that the correction of one occurrence of said erroneous data signals will automatically correct all similar occurrences of erroneous data signals.

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