JPS5492134A - Resembling letters and differential point detection circuit - Google Patents
Resembling letters and differential point detection circuitInfo
- Publication number
- JPS5492134A JPS5492134A JP16029077A JP16029077A JPS5492134A JP S5492134 A JPS5492134 A JP S5492134A JP 16029077 A JP16029077 A JP 16029077A JP 16029077 A JP16029077 A JP 16029077A JP S5492134 A JPS5492134 A JP S5492134A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- differential
- letters
- conformity
- resembling
- 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 Discrimination (AREA)
Abstract
PURPOSE: To effectively use this circuit for the printed letter recognizing system by obtaining an axis of coordinates and codes of the selected point and outputting them as a differential point information, thus enabling to calculate automatically the resembling letters and their differential points.
CONSTITUTION: The circuit consists of weighting circuit of standard figure 1, weighing figure housing buffer 2, non-conforming calculation circuit 3, resembling category detection circuit 4, differential figure generating circuit 5, differential figure buffer 6 and differential point deciding circuit 7. Letters are weighted by feeding N types of standard figures 8(1,2....z) in proper order, standard figure 9(category i) with letter pattern being equal to figure 8 is fed into circuit 3, thus calculating 3 and comparing 4 the non-conformity with the weighting figure, line the figures in the order that the figure with the least non-conformity is placed first and the figure with the most non-conformity is placed at last and output the category signals i1, i2,....im. Then, in case of circuit 7, if for example, a pair of letters (i, i1) is 3a and 5b, the points with large absolute value effective for the classification of two letters in the differential figure are determined as the representing points, A and B, obtain values of coordinates X and Y and code S and, then, use the obtained values as the differential point information of 3 and 5.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16029077A JPS5492134A (en) | 1977-12-29 | 1977-12-29 | Resembling letters and differential point detection circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16029077A JPS5492134A (en) | 1977-12-29 | 1977-12-29 | Resembling letters and differential point detection circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5492134A true JPS5492134A (en) | 1979-07-21 |
JPS5715431B2 JPS5715431B2 (en) | 1982-03-30 |
Family
ID=15711778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16029077A Granted JPS5492134A (en) | 1977-12-29 | 1977-12-29 | Resembling letters and differential point detection circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5492134A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01229384A (en) * | 1988-03-09 | 1989-09-13 | Brother Ind Ltd | Pattern matching device |
-
1977
- 1977-12-29 JP JP16029077A patent/JPS5492134A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01229384A (en) * | 1988-03-09 | 1989-09-13 | Brother Ind Ltd | Pattern matching device |
Also Published As
Publication number | Publication date |
---|---|
JPS5715431B2 (en) | 1982-03-30 |
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