Claims
- 1. A bar-code reader comprising:
- scanning and extracting means for scanning a bar-code with electromagnetic radioactive rays and then extracting data regarding a bar-width thereof based on the reflected rays;
- demodulating means for demodulating said bar-width data extracted by said scanning and extracting means and creating the demodulated data;
- combination judging means for judging the presence or absence of one of a plurality of possible bar-code reproducible combinations in demodulated data created by said demodulating means and for judging the type of combination when the reproducible combination exists;
- delta-distance distortion evaluating means for evaluating a degree of deviation of a distance of every character of the bar-width data from a predetermined standard of the bar-width data extracted by said scanning and extracting means; and
- screening and synthesizing means for screening demodulated data or a character forming demodulated data, based on said degree of deviation determined by said delta-distance distortion evaluating means and then synthesizing said demodulated data screened or said character screened according to the type of combination judged by said combination judging means.
- 2. A bar-code reading method comprising the steps of:
- scanning a bar-code with electromagnetic radioactive rays and then extracting data regarding a bar-width thereof based on the reflected rays;
- determining a degree of deviation of a distance of every character of the bar-width data from a predetermined standard of said bar-width data and demodulating said bar-width data and creating demodulated data;
- judging the presence or absence of one of a plurality of possible bar-code reproducible combinations in said demodulated data and judging the type of combination when the reproducible combination exists; and
- screening said demodulated data or a character forming said demodulated data, based on said degree of deviation and then synthesizing said demodulated data screened or said character screened according to the type of combination.
Priority Claims (2)
Number |
Date |
Country |
Kind |
6-169742 |
Jul 1994 |
JPX |
|
6-318747 |
Dec 1994 |
JPX |
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Parent Case Info
This is a continuation of application Ser. No. 08/504,191 filed Jul. 19, 1995, now abandoned.
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Continuations (1)
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Number |
Date |
Country |
Parent |
504191 |
Jul 1995 |
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