Bar code reading apparatus

Details Bar code reading apparatus Bar code reading apparatus

1996-07-05

1998-07-14

Pitts, Harold

Registers

Coded record sensors

Particular sensor structure

235463, G06F 710

Patent

active

057808325

ABSTRACT:
A demodulated data storage buffer stores bar width data sets obtained during one scan with laser beams L through a scan optical system. A CPU sequentially demodulates these bar width data sets and stores the demodulated data storage buffer with the bar width data sets as a series of demodulated data strings. The CPU compares respective items of demodulated data with each other that are included in the demodulated data string and preferentially treats, as effective data, the demodulated data based on "continuous reading" and the "block reading". The CPU conceives as noise data the demodulated data logically impossible from a mutual relationship between these items of demodulated data and deletes the same demodulated data.

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patent: 5276316 (1994-01-01), Blanford
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patent: 5296691 (1994-03-01), Waldron et al.
patent: 5466921 (1995-11-01), Lapinski et al.
patent: 5495097 (1996-02-01), Katz et al.
patent: 5548107 (1996-08-01), Lapinski et al.

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