JPS52152117A - Information reader - Google Patents

Information reader

Info

Publication number
JPS52152117A
JPS52152117A JP6871376A JP6871376A JPS52152117A JP S52152117 A JPS52152117 A JP S52152117A JP 6871376 A JP6871376 A JP 6871376A JP 6871376 A JP6871376 A JP 6871376A JP S52152117 A JPS52152117 A JP S52152117A
Authority
JP
Japan
Prior art keywords
information reader
circumfernece
multifarious
code
bar
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
JP6871376A
Other languages
Japanese (ja)
Inventor
Kazumichi Nagaai
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP6871376A priority Critical patent/JPS52152117A/en
Publication of JPS52152117A publication Critical patent/JPS52152117A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: Average background light is obtained and this output signal is made a comparable reference signal, thereby making it possible to read information accurately even if the dirty condition of the circumfernece of the information part such as a bar-code is multifarious.
COPYRIGHT: (C)1977,JPO&Japio
JP6871376A 1976-06-14 1976-06-14 Information reader Pending JPS52152117A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6871376A JPS52152117A (en) 1976-06-14 1976-06-14 Information reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6871376A JPS52152117A (en) 1976-06-14 1976-06-14 Information reader

Publications (1)

Publication Number Publication Date
JPS52152117A true JPS52152117A (en) 1977-12-17

Family

ID=13381690

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6871376A Pending JPS52152117A (en) 1976-06-14 1976-06-14 Information reader

Country Status (1)

Country Link
JP (1) JPS52152117A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6354682A (en) * 1986-08-25 1988-03-09 Matsushita Electric Ind Co Ltd Optical reader
JPS6354684A (en) * 1986-08-25 1988-03-09 Matsushita Electric Ind Co Ltd Optical read method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4320430Y1 (en) * 1968-03-21 1968-08-28

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4320430Y1 (en) * 1968-03-21 1968-08-28

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6354682A (en) * 1986-08-25 1988-03-09 Matsushita Electric Ind Co Ltd Optical reader
JPS6354684A (en) * 1986-08-25 1988-03-09 Matsushita Electric Ind Co Ltd Optical read method

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