Method and apparatus for reading label bar codes

Details Method and apparatus for reading label bar codes Method and apparatus for reading label bar codes

1978-04-10

1979-06-19

Cook, Daryl W.

Registers

Coded record sensors

Particular sensor structure

250555, 360 40, G06K 710, G08C 906, G11B 509

Patent

active

041584350

ABSTRACT:
A method and apparatus for reading label bar codes in which a photoelectric signal representative of an optically scanned bar code label is differentiated. The positive and negative peaks of the differentiated signal are detected, and the time intervals between the peaks are measured by counter means to produce output signals representative of the bar code label. A multi-level threshold comparison technique is used to detect and predict the occurrence of positive and negative peaks.

REFERENCES:
patent: 3868634 (1975-02-01), Dolch
patent: 3902049 (1975-08-01), Hanchett, Jr.
patent: 4000397 (1976-12-01), Hebert et al.
patent: 4091379 (1978-05-01), Wu et al.
patent: 4096992 (1978-06-01), Nojiri et al.

Affiliated with

Also associated with

Rating

Method and apparatus for reading label bar codes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for reading label bar codes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for reading label bar codes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-53900