JPS569877A - Frame signal eliminator of character reader - Google Patents
Frame signal eliminator of character readerInfo
- Publication number
- JPS569877A JPS569877A JP6625580A JP6625580A JPS569877A JP S569877 A JPS569877 A JP S569877A JP 6625580 A JP6625580 A JP 6625580A JP 6625580 A JP6625580 A JP 6625580A JP S569877 A JPS569877 A JP S569877A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- frame signal
- character
- supplied
- frame
- 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 Input (AREA)
Abstract
PURPOSE: To make it possible to eliminate securely a frame signal component leaking into a character signal by an automatic postal-code-number reader, etc., by the frame signal and a signal tracing the white level of the character signal and by clamping the character signal to a white-level tracing signal level by the frame signal.
CONSTITUTION: A character signal into which a frame signal component leaks is supplied to terminal 11 and then supplied to white-level tracing circuit 17 by way of transistor TR16. The output signal of circuit 17 is supplied to the emitter of TR22 in clamping circuit 21 via TR19. The frame signal extracted by frame signal extracting circuit 20 is supplied to the base of TR22 and only when the frame signal is input, TR22 turns on, so that the collector and emitter will be equal in electric potential. Since the character signal is supplied to the collector of TR22 via TR12, the character signal is clamped to the output signal level of circuit 17. Therefore, the frame signal component leaking into the character signal is removed and the character signal that includes no frame signal component can be obtained from output terminal 15.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6625580A JPS569877A (en) | 1980-05-19 | 1980-05-19 | Frame signal eliminator of character reader |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6625580A JPS569877A (en) | 1980-05-19 | 1980-05-19 | Frame signal eliminator of character reader |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS569877A true JPS569877A (en) | 1981-01-31 |
JPS5623189B2 JPS5623189B2 (en) | 1981-05-29 |
Family
ID=13310563
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6625580A Granted JPS569877A (en) | 1980-05-19 | 1980-05-19 | Frame signal eliminator of character reader |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS569877A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5898795A (en) * | 1995-12-08 | 1999-04-27 | Ricoh Company, Ltd. | Character recognition method using a method for deleting ruled lines |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59177493U (en) * | 1983-05-12 | 1984-11-27 | 株式会社トミー | Movable display mechanism for toys |
-
1980
- 1980-05-19 JP JP6625580A patent/JPS569877A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5898795A (en) * | 1995-12-08 | 1999-04-27 | Ricoh Company, Ltd. | Character recognition method using a method for deleting ruled lines |
Also Published As
Publication number | Publication date |
---|---|
JPS5623189B2 (en) | 1981-05-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
YU42187B (en) | Method of passivating an integrated circuit device | |
DE3270088D1 (en) | Method and arrangement for contrast enhancement | |
MY100653A (en) | Dark level restoring circuits | |
JPS5326505A (en) | Voice rec ognizing device | |
JPS569877A (en) | Frame signal eliminator of character reader | |
JPS55155205A (en) | Form detector | |
JPS5232647A (en) | Interruption system of electronic computer | |
JPS575466A (en) | Binary coded circuit | |
JPS6473464A (en) | Automatic editing device of logical circuit | |
JPS5263623A (en) | Data entry machine | |
JPS56140281A (en) | Electronic timepiece | |
JPS5412612A (en) | Signal processing system | |
JPS647813A (en) | Automatic threshold level setting circuit | |
JPS51113409A (en) | Television receiver | |
JPS5295114A (en) | Ascending circuit connecting method in two-ways catv system | |
JPS5212868A (en) | Automatic synchronizing signal generating circuit | |
JPS5781783A (en) | Synchronizing signal removing circuit | |
JPS5283137A (en) | Noise removing circuit of quantigation picture | |
JPS5720860A (en) | Pattern input system | |
JPS5411625A (en) | Processing system for video signal | |
JPS5754465A (en) | Signal tone detection system | |
JPS5494237A (en) | Pickup unit for object image | |
JPS56140782A (en) | Processing system of digital video signal | |
JPS5318102A (en) | Test equipment | |
JPS5321502A (en) | Display unit in electrical machinery and apparatus |