JPS5647873A - Quantitizing circuit - Google Patents
Quantitizing circuitInfo
- Publication number
- JPS5647873A JPS5647873A JP12370979A JP12370979A JPS5647873A JP S5647873 A JPS5647873 A JP S5647873A JP 12370979 A JP12370979 A JP 12370979A JP 12370979 A JP12370979 A JP 12370979A JP S5647873 A JPS5647873 A JP S5647873A
- Authority
- JP
- Japan
- Prior art keywords
- photoelectric conversion
- scanning
- frame
- pattern
- character
- 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 obtain different quantitizing information and easily discriminate a character, by changing the threshold which is used in case a photoelectric conversion signal obtained by scanning a character is quantitized, whenever 1 frame of character is scanned.
CONSTITUTION: The surface array 2 consisting of photoelectric conversion elements of mxn pieces in the photoelectric conversion part 1 is driven for scanning in order in the line direction and also in the row direction, and a photoelectric conversion signal is sent from the out-put register 4 in order by a line each to the comparator 12 for quantitization under the control of the shift register 3. The shift register 3 sends a frame end pulse to the J-K flip flop 8 whenever scanning of 1 frame consisting of mxn bit is finished. The J-K flip flop 8 changes the threshold supplied to the comparator 12 to large and small in order whenever scanning of 1 frame is finished. As a result of the foregoing, both the somewhat thick pattern and the somewhat thin pattern are obtained, and proper discrimination can be performed by selecting one pattern depending on the pattern status.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12370979A JPS5647873A (en) | 1979-09-26 | 1979-09-26 | Quantitizing circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12370979A JPS5647873A (en) | 1979-09-26 | 1979-09-26 | Quantitizing circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5647873A true JPS5647873A (en) | 1981-04-30 |
Family
ID=14867402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12370979A Pending JPS5647873A (en) | 1979-09-26 | 1979-09-26 | Quantitizing circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5647873A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60179888A (en) * | 1984-02-27 | 1985-09-13 | Sumitomo Electric Ind Ltd | Optical reader |
-
1979
- 1979-09-26 JP JP12370979A patent/JPS5647873A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60179888A (en) * | 1984-02-27 | 1985-09-13 | Sumitomo Electric Ind Ltd | Optical reader |
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