Bar code reading and decoding apparatus

Details Bar code reading and decoding apparatus Bar code reading and decoding apparatus

1989-03-17

1991-07-30

Levy, Stuart S.

Registers

Coded record sensors

Particular sensor structure

235463, G06K 701, G06K 500

Patent

active

050361821

ABSTRACT:
A bar code reading apparatus for detecting the space between characters (the character space) by counting the number, which is a fixed number in the bar code, of edges, or transition points, of the bars and spaces for each character code, and either inhibits the count value by its bar/space width counter for the space beyond the fixed number of bars/spaces for one character (i.e., the count value for the character space) from being supplied to its decoder portion, or supplies the decoder portion with a specific code which the decoder will neglect in decoding, whereby the character space is prevented from adversely affecting the bar code reading.

REFERENCES:
patent: 4488678 (1984-12-01), Hara et al.
patent: 4608487 (1986-08-01), Awane et al.
patent: 4757206 (1988-07-01), Ohta
patent: 4797940 (1989-01-01), Sato
patent: 4855581 (1989-08-01), Mertel et al.
patent: 4859840 (1989-08-01), Hasegawa et al.
Japanese Industrial Standards (JIS) B9550-1987, (pp. 1-14).
"Construction of Bar Code System", No. 4, (pp. 179-199).

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