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JPS5258429A - Pattern recognition unit - Google Patents

Pattern recognition unit

Info

Publication number
JPS5258429A
JPS5258429A JP50134071A JP13407175A JPS5258429A JP S5258429 A JPS5258429 A JP S5258429A JP 50134071 A JP50134071 A JP 50134071A JP 13407175 A JP13407175 A JP 13407175A JP S5258429 A JPS5258429 A JP S5258429A
Authority
JP
Japan
Prior art keywords
pattern recognition
recognition unit
light source
diodes
passage
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
JP50134071A
Other languages
Japanese (ja)
Inventor
Yoji Yabuhara
Shigeaki Nakajima
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP50134071A priority Critical patent/JPS5258429A/en
Publication of JPS5258429A publication Critical patent/JPS5258429A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To enable a correct pattern recognition even with a change with the passage of time for the luminous intensity of a light source, by detecting and controlling the direct light from the light source with diodes.
COPYRIGHT: (C)1977,JPO&Japio
JP50134071A 1975-11-10 1975-11-10 Pattern recognition unit Pending JPS5258429A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50134071A JPS5258429A (en) 1975-11-10 1975-11-10 Pattern recognition unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50134071A JPS5258429A (en) 1975-11-10 1975-11-10 Pattern recognition unit

Publications (1)

Publication Number Publication Date
JPS5258429A true JPS5258429A (en) 1977-05-13

Family

ID=15119687

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50134071A Pending JPS5258429A (en) 1975-11-10 1975-11-10 Pattern recognition unit

Country Status (1)

Country Link
JP (1) JPS5258429A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56127276A (en) * 1980-03-10 1981-10-05 Omron Tateisi Electronics Co Photoelectric switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56127276A (en) * 1980-03-10 1981-10-05 Omron Tateisi Electronics Co Photoelectric switch

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