JPS5559582A - Bar code detector - Google Patents

Bar code detector

Info

Publication number
JPS5559582A
JPS5559582A JP13258878A JP13258878A JPS5559582A JP S5559582 A JPS5559582 A JP S5559582A JP 13258878 A JP13258878 A JP 13258878A JP 13258878 A JP13258878 A JP 13258878A JP S5559582 A JPS5559582 A JP S5559582A
Authority
JP
Japan
Prior art keywords
code
bar
bar code
waveform
receiver
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.)
Pending
Application number
JP13258878A
Other languages
Japanese (ja)
Inventor
Takao Kiogawa
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.)
Kokusai Denki Electric Inc
Original Assignee
Kokusai Electric Co 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 Kokusai Electric Co Ltd filed Critical Kokusai Electric Co Ltd
Priority to JP13258878A priority Critical patent/JPS5559582A/en
Publication of JPS5559582A publication Critical patent/JPS5559582A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To ensure an accurate code detection for the fluctuation of the running speed of a wide range and the speed under reading by providing the binary coded bar code, the light receiver, the converter, the measuring controller, the counter, the comparison operator, the code memory and the output unit each.
CONSTITUTION: The width is set to l0 for both the black and white bars to binary code "0" and then set to l1=2l0 to "1". Such bar code 2 is irradiated from light source 1, and the reflected light is received at light receiver 3. It is supposed that either combination between bar code 2 and light source 1 or receiver 3 shifts toward S direction and also runs in a fixed speed, and thus converter 4 amplifies the signals and converts them into the square waves to deliver waveform (a). This square waveform (a) is supplied to measuring controller 5, and control signals b, c and d are produced at the conversion point of waveform (a) from black bar B to white bar W or vice versa to be then transmitted to counter 7, comparison operator 8 and memory and output unit 9 of the binary code respectively.
COPYRIGHT: (C)1980,JPO&Japio
JP13258878A 1978-10-30 1978-10-30 Bar code detector Pending JPS5559582A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13258878A JPS5559582A (en) 1978-10-30 1978-10-30 Bar code detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13258878A JPS5559582A (en) 1978-10-30 1978-10-30 Bar code detector

Publications (1)

Publication Number Publication Date
JPS5559582A true JPS5559582A (en) 1980-05-06

Family

ID=15084842

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13258878A Pending JPS5559582A (en) 1978-10-30 1978-10-30 Bar code detector

Country Status (1)

Country Link
JP (1) JPS5559582A (en)

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