Combining bar code read data from a plurality of scanning lines

Details Combining bar code read data from a plurality of scanning lines Combining bar code read data from a plurality of scanning lines

1988-09-28

1991-09-03

Levy, Stuart S.

Registers

Coded record sensors

Particular sensor structure

235470, G06K 701, G06K 500

Patent

active

050456776

ABSTRACT:
A bar code reading arrangement (apparatus and method) for reading and combining and connecting fragmentary read data. A bar code scanner provides a plurality of one-dimensional images and comprises an image sensor for reading the bar code data. As the scanner is moved relative to the bar code, a plurality of parallel scanning lines are formed from the one-dimensional images. Bar code data segments from the scanning lines are read by the image sensor and are combined in accordance with a pre-processing and combining method. The pre-processing method comprises the steps of: reading information on the image sensor concerning the positions of end points located at or near both ends of the bar code; defining an end point as being fixed or moving, based on the relative positional change of the end point; and reading the data segments as both bar code information, and positional information with respect to the positions of the end points.

REFERENCES:
patent: 4289957 (1981-09-01), Neyroud et al.
patent: 4409469 (1983-10-01), Yasuda et al.
patent: 4488678 (1984-12-01), Hara et al.
patent: 4652730 (1987-03-01), Marshall
patent: 4745484 (1988-05-01), Drexler et al.

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