JPS5543866A - Front and back identifying device - Google Patents
Front and back identifying deviceInfo
- Publication number
- JPS5543866A JPS5543866A JP11679178A JP11679178A JPS5543866A JP S5543866 A JPS5543866 A JP S5543866A JP 11679178 A JP11679178 A JP 11679178A JP 11679178 A JP11679178 A JP 11679178A JP S5543866 A JPS5543866 A JP S5543866A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- calculating unit
- back side
- white
- unit
- 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
Links
Abstract
PURPOSE: To identify front and back of a measuring object simply without touching the object by comparing a value obtained through white or black level area calculating unit with a value set on a reference area calculating unit for the front or back side on a comparing unit.
CONSTITUTION: A measuring object is imaged by a photoelectric scanner 1, an output video signal is binary-coded through a binary circuit 2 at a black-and-white center level, and an analog signal is converted to a digital signal. The binarycoded signal is subjected to OR operation with an output signal of a sampling pulse oscillator 32 through a gate circuit 31 of an area calculating unit 3, and a white portion is converted to a pulse number and digitized on a counter 33. At a reference area setting unit 4, an intermediate value of the area of a white portion of the front side pattern and the back side pattern is set in pulse number through conversion, which is compared with the value digitized on the counter 33 of a calculating unit 3 on a comparing unit 5, thus outputting a back side identified signal to an output end 52.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11679178A JPS5543866A (en) | 1978-09-21 | 1978-09-21 | Front and back identifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11679178A JPS5543866A (en) | 1978-09-21 | 1978-09-21 | Front and back identifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5543866A true JPS5543866A (en) | 1980-03-27 |
Family
ID=14695774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11679178A Pending JPS5543866A (en) | 1978-09-21 | 1978-09-21 | Front and back identifying device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5543866A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60166810A (en) * | 1983-12-29 | 1985-08-30 | Nippon Seikan Kk | Detection for painted film of metal tube material |
| JPS63142836A (en) * | 1986-12-05 | 1988-06-15 | Mitsubishi Electric Corp | Front and rear, disposing direction discriminator for semiconductor device |
| JP2009121919A (en) * | 2007-11-14 | 2009-06-04 | Ihi Corp | Front/rear face discriminating apparatus for workpiece |
| JP2010091298A (en) * | 2008-10-03 | 2010-04-22 | Daishinku Corp | Method and apparatus for determining inside and outside of article |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4960652A (en) * | 1972-10-13 | 1974-06-12 |
-
1978
- 1978-09-21 JP JP11679178A patent/JPS5543866A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4960652A (en) * | 1972-10-13 | 1974-06-12 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60166810A (en) * | 1983-12-29 | 1985-08-30 | Nippon Seikan Kk | Detection for painted film of metal tube material |
| JPS63142836A (en) * | 1986-12-05 | 1988-06-15 | Mitsubishi Electric Corp | Front and rear, disposing direction discriminator for semiconductor device |
| JPH0529144B2 (en) * | 1986-12-05 | 1993-04-28 | Mitsubishi Electric Corp | |
| JP2009121919A (en) * | 2007-11-14 | 2009-06-04 | Ihi Corp | Front/rear face discriminating apparatus for workpiece |
| JP2010091298A (en) * | 2008-10-03 | 2010-04-22 | Daishinku Corp | Method and apparatus for determining inside and outside of article |
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