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Bar code reader and its misreading detecting method

  • US 6,554,190 B1
  • Filed: 11/22/2000
  • Issued: 04/29/2003
  • Est. Priority Date: 11/24/1999
  • Status: Expired due to Fees
First Claim
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1. A bar code reader having reading means for reading out a bar code, analyzing means for decoding the bar code read by the reading means into a numerical code, and data transfer means for transferring the numerical code to a host device, comprising:

  • a misreading information table for registering a misreading code corresponding to a bar code having been converted into a mistaken numerical code in the past and a correct code corresponding to an original correct numerical code of the same bar code; and

    misreading detecting means for detecting the misreading code in accord with the numerical code decoded by the analyzing means, from the misreading codes registered in said misreading information table, and supplying the detected result to the data transfer means.

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