JPS5544619A - Information selection reading device - Google Patents
Information selection reading deviceInfo
- Publication number
- JPS5544619A JPS5544619A JP11747978A JP11747978A JPS5544619A JP S5544619 A JPS5544619 A JP S5544619A JP 11747978 A JP11747978 A JP 11747978A JP 11747978 A JP11747978 A JP 11747978A JP S5544619 A JPS5544619 A JP S5544619A
- Authority
- JP
- Japan
- Prior art keywords
- electron beam
- detection mark
- position detection
- character
- video signal
- 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
- Character Input (AREA)
Abstract
PURPOSE: To eliminate the effect of the shading, uneven exposure and others by giving the control to the quantization level of the video signal of the character reading device according to the brightness of the character position detection mark.
CONSTITUTION: First, the electron beam is positioned at periphery y1 of the designated row position detection mark, and the position detection mark is detected when the electron beam is shifted and passes through position y2 to then fix the y-direction position of the electron beam at position y2. Then, the electron beam is positioned at the periphery (x1y2) of the position detection mark. The position detection mark is detected when the electron beam is shifted and passes through the position (x2y2), and the potential proportional to the signal level is held. The electron beam scans the prescribed one character from the position (x2y2) to convert the character into the video signal. This video signal is then compared with the potential held in proportion to the bright of the position detection mark and then quantized.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11747978A JPS5544619A (en) | 1978-09-26 | 1978-09-26 | Information selection reading device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11747978A JPS5544619A (en) | 1978-09-26 | 1978-09-26 | Information selection reading device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5544619A true JPS5544619A (en) | 1980-03-29 |
Family
ID=14712709
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11747978A Pending JPS5544619A (en) | 1978-09-26 | 1978-09-26 | Information selection reading device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5544619A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61106252U (en) * | 1984-12-17 | 1986-07-05 |
-
1978
- 1978-09-26 JP JP11747978A patent/JPS5544619A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61106252U (en) * | 1984-12-17 | 1986-07-05 | ||
JPS6323097Y2 (en) * | 1984-12-17 | 1988-06-24 |
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