Registers – Coded record sensors – Particular sensor structure
Patent
1994-04-01
1995-08-01
Pitts, Harold
Registers
Coded record sensors
Particular sensor structure
235463, G06K 710
Patent
active
054381886
ABSTRACT:
A method and apparatus for decoding a pixel image representative of a bar code symbol. A bar code symbol is scanned along a first scan line to determine a first set of candidate character values, each candidate character value of this first set having an error value associated therewith. If the scanning along the first scan line results in an unsuccessful reading of the bar code symbol, then the bar code symbol is scanned along a second differing scan line to determine a second set of candidate character values, each candidate character value of this second set having an error value associated therewith. Corresponding error values associated with the first and second sets of candidate character values are next compared. For each corresponding pair of candidate character values from the first and second sets, the candidate character value having the smallest associated error value is selected. A third set of candidate character values is formed in accordance with the selected candidate character values, and the bar code symbol is decoded in accordance with the third set of candidate character values.
REFERENCES:
patent: 3410991 (1968-11-01), van Berkel
patent: 3833882 (1974-09-01), Busby
patent: 4473746 (1984-09-01), Edmonds
patent: 4648120 (1987-03-01), Chittineni
patent: 4749879 (1988-06-01), Peterson et al.
patent: 4797943 (1989-01-01), Murayama et al.
patent: 4873426 (1989-10-01), Sarna et al.
patent: 4958064 (1990-09-01), Kirkpatrick
patent: 4973829 (1990-11-01), Ishida et al.
patent: 4988852 (1991-01-01), Krishnan
patent: 4992650 (1991-02-01), Somerville
patent: 5036182 (1991-07-01), Ouchi et al.
patent: 5045677 (1991-09-01), Okamura
patent: 5073954 (1991-12-01), Van Tyne et al.
patent: 5073958 (1991-12-01), Imme
patent: 5081689 (1992-01-01), Meyer et al.
patent: 5120940 (1992-06-01), Willsie
patent: 5142592 (1992-08-01), Moler
patent: 5155343 (1992-10-01), Chandler et al.
patent: 5155344 (1992-10-01), Fardeau et al.
patent: 5296691 (1994-03-01), Waldron
"Image Enhancement Processing", E. M. Winter, IBM Technical Disclosure Bulletin, vol. 19, No. 5, 10-86.
"Two Sensor Bar Code Scanner Using Sensor Spacer As A Reference" R. J. Kulikowski and R. G. Pierlott, III, IBM Technical Bulletin, vol. 17, 12-74. No date.
"Peak Classifer for Bar Code Waveforms", E. Joseph & T. Pavlidis, 11th International Conference on Pattern Recognition, The Hague, The Netherlands, Aug. 30-Sep. 3, 1992.
Pitts Harold
United Parcel Service of America Inc.
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