Bar code demodulating method dependent on respective range of le

Details Bar code demodulating method dependent on respective range of le Bar code demodulating method dependent on respective range of le

1995-06-07

1996-06-11

Shepperd, John

Registers

Coded record sensors

Error checking

235463, G06K 710

Patent

active

055257852

ABSTRACT:
A bar code demodulating method includes a step of measuring lengths of successive characters of a bar code, a second step of obtaining a ratio of the length of a demodulating character which is to be demodulated and the length of a preceding, demodulated character and a third step of demodulating the demodulating character by mutually different first and second demodulation schemes, selected in accordance with the obtained length ratio falling within respective, and different, first and second predetermined ranges.

REFERENCES:
patent: 4354101 (1982-10-01), Hester et al.
patent: 4414468 (1983-11-01), Laurer et al.
patent: 4438327 (1984-03-01), Smith
patent: 4488678 (1984-12-01), Hara
patent: 4528443 (1985-07-01), Smith
patent: 4757206 (1988-07-01), Ohta
patent: 4973830 (1990-11-01), Ouchi et al.

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