IT1226070B - Method and device for reading graphic codes - Google Patents

Method and device for reading graphic codes

Info

Publication number
IT1226070B
IT1226070B IT8722841A IT2284187A IT1226070B IT 1226070 B IT1226070 B IT 1226070B IT 8722841 A IT8722841 A IT 8722841A IT 2284187 A IT2284187 A IT 2284187A IT 1226070 B IT1226070 B IT 1226070B
Authority
IT
Italy
Prior art keywords
optical
code
focaliser
speed
graphic codes
Prior art date
Application number
IT8722841A
Other languages
Italian (it)
Other versions
IT8722841A0 (en
Inventor
Giacinto De Fiori
Original Assignee
Pulsar Di Resta Alessandro E C
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pulsar Di Resta Alessandro E C filed Critical Pulsar Di Resta Alessandro E C
Priority to IT8722841A priority Critical patent/IT1226070B/en
Publication of IT8722841A0 publication Critical patent/IT8722841A0/en
Application granted granted Critical
Publication of IT1226070B publication Critical patent/IT1226070B/en

Links

Abstract

In a device for reading graphic codes (in particular bar codes), the said code is illuminated with a diffused white light while movement takes place across the reading field of an optical focaliser at a speed and in accordance with a direction, which are constant and pre-set. The optical signals generated by the variations in intensity of the light reflected by the single components comprising the said code, are focalised by the said optical focaliser, detected and transformed into electric signals, which in turn are decoded and processed for use as appropriate. A phasing device controls the congruence between the speed of generation and detection of the optical signals of the entire code and their transformation and/or decoding (figure 2).
IT8722841A 1987-12-01 1987-12-01 Method and device for reading graphic codes IT1226070B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT8722841A IT1226070B (en) 1987-12-01 1987-12-01 Method and device for reading graphic codes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8722841A IT1226070B (en) 1987-12-01 1987-12-01 Method and device for reading graphic codes

Publications (2)

Publication Number Publication Date
IT8722841A0 IT8722841A0 (en) 1987-12-01
IT1226070B true IT1226070B (en) 1990-12-10

Family

ID=11201053

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8722841A IT1226070B (en) 1987-12-01 1987-12-01 Method and device for reading graphic codes

Country Status (1)

Country Link
IT (1) IT1226070B (en)

Also Published As

Publication number Publication date
IT8722841A0 (en) 1987-12-01

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19931227