JPS564834A - Photo detection control system by light pen - Google Patents
Photo detection control system by light penInfo
- Publication number
- JPS564834A JPS564834A JP7904079A JP7904079A JPS564834A JP S564834 A JPS564834 A JP S564834A JP 7904079 A JP7904079 A JP 7904079A JP 7904079 A JP7904079 A JP 7904079A JP S564834 A JPS564834 A JP S564834A
- Authority
- JP
- Japan
- Prior art keywords
- light
- light pen
- detection signal
- detected
- control system
- 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
Landscapes
- Position Input By Displaying (AREA)
Abstract
PURPOSE: To exclude the incorrect signal based on the malfunction of light pen, by monitoring the timing to detect the light at the N+Kth rester, after detecting the light of the Nth raster by the light pen.
CONSTITUTION: The detection range of a light pen covers several rasters. Further, since the rester scanning is made with a given order and a given constant speed, each raster is sequentially detected at a given time. First, when the first light point A is detected, the light detection signal is input to FF and attached clock. When the detection signal for the second light spot B is in agreement with the output of the counter corresponding to the detected time interval between specified rasters, both the output signals are input to the gate to obtain normal light detection signal.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7904079A JPS564834A (en) | 1979-06-25 | 1979-06-25 | Photo detection control system by light pen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7904079A JPS564834A (en) | 1979-06-25 | 1979-06-25 | Photo detection control system by light pen |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS564834A true JPS564834A (en) | 1981-01-19 |
Family
ID=13678795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7904079A Pending JPS564834A (en) | 1979-06-25 | 1979-06-25 | Photo detection control system by light pen |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS564834A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5872237A (en) * | 1981-10-27 | 1983-04-30 | Hitachi Ltd | Picture element detecting device using light pen |
JPS62175588A (en) * | 1985-10-02 | 1987-08-01 | モダイン・マニユフアクチヤリング・カンパニ− | Condenser with flow path having small fluid diameter |
JPS62207572A (en) * | 1986-03-03 | 1987-09-11 | モダイン・マニユフアクチヤリング・カンパニ− | Production of heat exchanger |
JPH02127966U (en) * | 1989-03-30 | 1990-10-22 |
-
1979
- 1979-06-25 JP JP7904079A patent/JPS564834A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5872237A (en) * | 1981-10-27 | 1983-04-30 | Hitachi Ltd | Picture element detecting device using light pen |
JPH0315769B2 (en) * | 1981-10-27 | 1991-03-01 | Hitachi Ltd | |
JPS62175588A (en) * | 1985-10-02 | 1987-08-01 | モダイン・マニユフアクチヤリング・カンパニ− | Condenser with flow path having small fluid diameter |
JPH0587752B2 (en) * | 1985-10-02 | 1993-12-17 | Modine Mfg Co | |
JPS62207572A (en) * | 1986-03-03 | 1987-09-11 | モダイン・マニユフアクチヤリング・カンパニ− | Production of heat exchanger |
JPH078430B2 (en) * | 1986-03-03 | 1995-02-01 | モダイン・マニユフアクチヤリング・カンパニ− | How to make a heat exchanger |
JPH02127966U (en) * | 1989-03-30 | 1990-10-22 |
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