JPS51135429A - Optical read unit - Google Patents

Optical read unit

Info

Publication number
JPS51135429A
JPS51135429A JP50060705A JP6070575A JPS51135429A JP S51135429 A JPS51135429 A JP S51135429A JP 50060705 A JP50060705 A JP 50060705A JP 6070575 A JP6070575 A JP 6070575A JP S51135429 A JPS51135429 A JP S51135429A
Authority
JP
Japan
Prior art keywords
read unit
optical read
codes
utilization
white
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
JP50060705A
Other languages
Japanese (ja)
Inventor
Shiro Tsuji
Masanori Hamada
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP50060705A priority Critical patent/JPS51135429A/en
Publication of JPS51135429A publication Critical patent/JPS51135429A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To provide sure read operation by obtaining a stable standard level independent of white/black length of the codes through utilization of three envelope detectors.
COPYRIGHT: (C)1976,JPO&Japio
JP50060705A 1975-05-20 1975-05-20 Optical read unit Pending JPS51135429A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50060705A JPS51135429A (en) 1975-05-20 1975-05-20 Optical read unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50060705A JPS51135429A (en) 1975-05-20 1975-05-20 Optical read unit

Publications (1)

Publication Number Publication Date
JPS51135429A true JPS51135429A (en) 1976-11-24

Family

ID=13149961

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50060705A Pending JPS51135429A (en) 1975-05-20 1975-05-20 Optical read unit

Country Status (1)

Country Link
JP (1) JPS51135429A (en)

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