JPS5492134A - Resembling letters and differential point detection circuit - Google Patents

Resembling letters and differential point detection circuit

Info

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
Application number
JP16029077A
Other languages
Japanese (ja)
Other versions
JPS5715431B2 (en
Inventor
Osamu Kato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP16029077A priority Critical patent/JPS5492134A/en
Publication of JPS5492134A publication Critical patent/JPS5492134A/en
Publication of JPS5715431B2 publication Critical patent/JPS5715431B2/ja
Granted legal-status Critical Current

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
JP16029077A 1977-12-29 1977-12-29 Resembling letters and differential point detection circuit Granted JPS5492134A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01229384A (en) * 1988-03-09 1989-09-13 Brother Ind Ltd Pattern matching device

Cited By (1)

* Cited by examiner, † Cited by third party
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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