JPS5537687A - Pattern discriminator - Google Patents
Pattern discriminatorInfo
- 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
Links
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
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)
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 |
-
1979
- 1979-05-21 JP JP54063126A patent/JPS5813946B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5813946B2 (en) | 1983-03-16 |
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