JPS5537687A - Pattern discriminator - Google Patents

Pattern discriminator

Info

Publication number
JPS5537687A
JPS5537687A JP6312679A JP6312679A JPS5537687A JP S5537687 A JPS5537687 A JP S5537687A JP 6312679 A JP6312679 A JP 6312679A JP 6312679 A JP6312679 A JP 6312679A JP S5537687 A JPS5537687 A JP S5537687A
Authority
JP
Japan
Prior art keywords
pattern
recording
recorded
same position
wave
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
JP6312679A
Other languages
Japanese (ja)
Other versions
JPS5813946B2 (en
Inventor
Masayuki Mino
Yoshitaka Shiromasa
Kokichi Tanaka
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.)
Minolta Co Ltd
Original Assignee
Minolta 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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP54063126A priority Critical patent/JPS5813946B2/en
Publication of JPS5537687A publication Critical patent/JPS5537687A/en
Publication of JPS5813946B2 publication Critical patent/JPS5813946B2/en
Expired legal-status Critical Current

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Landscapes

  • Character Discrimination (AREA)

Abstract

PURPOSE: To make it possible to discriminate an input pattern by arranging holograms where reference patterns are generated corresponding to respective reference patterns and then by recording them via a space frequency filter.
CONSTITUTION: Images of several reference patterns of characters and figures in normally-used shapes are formed simultaneously at the same position 9a and an interference pattern of a signal wave passing through this reference pattern and a reference wave is recorded on photosensitive material 10a via a space frequency filter. This recorded hologram 10b is irradiated with the same or opposite wave surface as or to the reference wave used in recording to regenerate the recorded reference pattern at the same position 9c as the recording position. Next, setting input pattern 14 to the same position 9c makes it possible to make a decision on what reference pattern input pattern 14 is equal.
COPYRIGHT: (C)1980,JPO&Japio
JP54063126A 1979-05-21 1979-05-21 pattern identification device Expired JPS5813946B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54063126A JPS5813946B2 (en) 1979-05-21 1979-05-21 pattern identification device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54063126A JPS5813946B2 (en) 1979-05-21 1979-05-21 pattern identification device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP674873A Division JPS5522830B2 (en) 1973-01-12 1973-01-12

Publications (2)

Publication Number Publication Date
JPS5537687A true JPS5537687A (en) 1980-03-15
JPS5813946B2 JPS5813946B2 (en) 1983-03-16

Family

ID=13220263

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54063126A Expired JPS5813946B2 (en) 1979-05-21 1979-05-21 pattern identification device

Country Status (1)

Country Link
JP (1) JPS5813946B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60191749A (en) * 1984-03-07 1985-09-30 Koitsu Kadooka Conveying type grinding and polishing unit
JPS6120244U (en) * 1984-07-06 1986-02-05 相生精機株式会社 Machine tool work pallet changing device
JPS6120237U (en) * 1984-07-06 1986-02-05 日立精機株式会社 Machine tool hydraulic supply system
JPH02135145U (en) * 1989-04-12 1990-11-09

Also Published As

Publication number Publication date
JPS5813946B2 (en) 1983-03-16

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