Bar code reader and its misreading detecting method
AssigneeNEC Infrontia Corporation
InventorHajime Tsuno
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Abstract
A bar code reader having a reading circuit for reading a bar code, an analyzing circuit for decoding the bar code read by the reading circuit into a numerical code, and a data transfer circuit for transferring the numerical code to a host device, comprises a misreading information table for registering a misreading code corresponding to a bar code which has been converted into a mistaken numerical code in the past and a correct code corresponding to the original correct numerical code of the same bar code, and a misreading detecting circuit for detecting a misreading code in accord with the numerical code decoded by the analyzing circuit, from the misreading codes registered in the misreading information table and supplying the detected result to the data transfer circuit.
Claims15
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.
Dependencies are inferred from the claim text.