Bar-code reader, method of reading a bar code, and computer...

Details Bar-code reader, method of reading a bar code, and computer... Bar-code reader, method of reading a bar code, and computer...

2005-12-20

2005-12-20

Frech, Karl D. (Department: 2876)

Registers

Coded record sensors

Particular sensor structure

C235S462160, C235S462010, C382S181000

Reexamination Certificate

active

06976630

ABSTRACT:
In an optical scanner, an optical scanner optically scans a bar code to obtain signal strength of light reflected from black bars and white bars of the bar code, an extracting unit extracts edge data, which includes a plurality of edges and the signal strength of which changes corresponding to a change from a black bar to a white bar and vice versa, an edge-emphasizing unit that emphasizes edge data of an edge that satisfies a predetermined condition, a ternary judgment unit that makes a ternary judgment of each edge based on the edge emphasized to obtain a ternarizing result, and a decoder that decodes bar-code characters from the ternarizing result.

REFERENCES:
patent: 5442164 (1995-08-01), Adachi
patent: 5675136 (1997-10-01), Keinath et al.
patent: 5767497 (1998-06-01), Lei
patent: 5801369 (1998-09-01), Akeda
patent: 5969325 (1999-10-01), Hecht et al.
patent: 5979765 (1999-11-01), Watanabe et al.
patent: 6050489 (2000-04-01), Goto et al.
patent: 6126075 (2000-10-01), Agabra et al.
patent: 6209788 (2001-04-01), Bridgelall et al.
patent: 6328213 (2001-12-01), He et al.
patent: 6334572 (2002-01-01), Iwaguchi et al.
patent: 6386454 (2002-05-01), Hecht et al.
patent: 6478223 (2002-11-01), Ackley
patent: 6478224 (2002-11-01), Gettys
patent: 6494376 (2002-12-01), Davis et al.
patent: 6499662 (2002-12-01), Coleman et al.
patent: 2001/0035458 (2001-11-01), Schum et al.
patent: 2002/0021835 (2002-02-01), Andreasson et al.
patent: 2002/0162890 (2002-11-01), Tsi et al.
patent: 2004/0129784 (2004-07-01), Iwaguchi et al.
patent: 2004/0164158 (2004-08-01), Miyazawa et al.
patent: 0 427 528 (1991-05-01), None
patent: 1 205 873 (2002-05-01), None
patent: 7-234913 (1995-09-01), None

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