JPS5617475A - Bar-code read system - Google Patents

Bar-code read system

Info

Publication number
JPS5617475A
JPS5617475A JP9328879A JP9328879A JPS5617475A JP S5617475 A JPS5617475 A JP S5617475A JP 9328879 A JP9328879 A JP 9328879A JP 9328879 A JP9328879 A JP 9328879A JP S5617475 A JPS5617475 A JP S5617475A
Authority
JP
Japan
Prior art keywords
data
signal
bar code
bits
converted
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP9328879A
Other languages
Japanese (ja)
Other versions
JPS6115469B2 (en
Inventor
Hiroyuki Ikeda
Shunji Kitagawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP9328879A priority Critical patent/JPS5617475A/en
Publication of JPS5617475A publication Critical patent/JPS5617475A/en
Publication of JPS6115469B2 publication Critical patent/JPS6115469B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To prevent deterioration in bar code read precision and prolongation in data transfer time even when a microprocessor which is not large in number of bits is used by shifting binary data in accordance with the value of the binary data.
CONSTITUTION: Bar code 1 is scanned by laser light 2 and its reflected light is detected by photodetector 3 to obtain an analog signal that corresponds to the bar code. This signal is converted into a binary signal by comparator 4 to obtain a rectangular wave signal. The period, etc., of this signal is counted by counter 5 with a clock signal applied from oscillator 6. The number of bits of the binary data should be set to ten, for example so that sufficient precision can be obtained. The 10-bit binary data are converted by bit converter 8 into data (m) of eight bits, for example, and control information (n) on a shift value, which are both transferred to processor 9. Processor 9 converts reversely the data (m) into 10-bit data by referring to information (n) and, on the basis of reversely converted data, performs calculation so as to extract information on the bar code.
COPYRIGHT: (C)1981,JPO&Japio
JP9328879A 1979-07-24 1979-07-24 Bar-code read system Granted JPS5617475A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9328879A JPS5617475A (en) 1979-07-24 1979-07-24 Bar-code read system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9328879A JPS5617475A (en) 1979-07-24 1979-07-24 Bar-code read system

Publications (2)

Publication Number Publication Date
JPS5617475A true JPS5617475A (en) 1981-02-19
JPS6115469B2 JPS6115469B2 (en) 1986-04-24

Family

ID=14078211

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9328879A Granted JPS5617475A (en) 1979-07-24 1979-07-24 Bar-code read system

Country Status (1)

Country Link
JP (1) JPS5617475A (en)

Also Published As

Publication number Publication date
JPS6115469B2 (en) 1986-04-24

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