JPS5513473A - Magnification/reduction device for pattern - Google Patents

Magnification/reduction device for pattern

Info

Publication number
JPS5513473A
JPS5513473A JP8624578A JP8624578A JPS5513473A JP S5513473 A JPS5513473 A JP S5513473A JP 8624578 A JP8624578 A JP 8624578A JP 8624578 A JP8624578 A JP 8624578A JP S5513473 A JPS5513473 A JP S5513473A
Authority
JP
Japan
Prior art keywords
pattern
memory
counter
register
pulse train
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
Application number
JP8624578A
Other languages
Japanese (ja)
Inventor
Masamichi Shiyudo
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP8624578A priority Critical patent/JPS5513473A/en
Publication of JPS5513473A publication Critical patent/JPS5513473A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain the quantization pattern formed by magnify or reduce the original pattern of an optional quantization matrix size through the circuit constitution using the binary rate multiplier.
CONSTITUTION: The binary numbers corresponding to row number m and column number n of the original pattern are set to register 1 and 3, and the binary numbers corresponding to row number M and column number N of the pattern to be magnifid or reduced are set to register 2 and 4 respectively. Counter 5 is started to generate pulse train Pm and PM through gate group 7 and 8. Pattern memory 11 receives Pm and then reads the bit patterns of the row direction of the original pattern stored sequentially to signal line 110, and at the same time, pattern memory 12 writes the output on line 110 in sequence after receiving PM. And the contents of memory 11 is repeated and thinned according to magnification and reduction. When counter 5 reaches full counting, counter 6 starts subsequently to send out pulse train Pn and PM through gate group 9 and 10. Then the reading and writing of the column direction are carried out in the same way and between memory 11 and 12. And these operations are repeated sequentially.
COPYRIGHT: (C)1980,JPO&Japio
JP8624578A 1978-07-14 1978-07-14 Magnification/reduction device for pattern Pending JPS5513473A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8624578A JPS5513473A (en) 1978-07-14 1978-07-14 Magnification/reduction device for pattern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8624578A JPS5513473A (en) 1978-07-14 1978-07-14 Magnification/reduction device for pattern

Publications (1)

Publication Number Publication Date
JPS5513473A true JPS5513473A (en) 1980-01-30

Family

ID=13881420

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8624578A Pending JPS5513473A (en) 1978-07-14 1978-07-14 Magnification/reduction device for pattern

Country Status (1)

Country Link
JP (1) JPS5513473A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59205665A (en) * 1983-05-06 1984-11-21 Ricoh Co Ltd Picture processor
JPS60108883A (en) * 1983-11-18 1985-06-14 株式会社日立製作所 Document editing apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59205665A (en) * 1983-05-06 1984-11-21 Ricoh Co Ltd Picture processor
JPH0527151B2 (en) * 1983-05-06 1993-04-20 Ricoh Kk
JPS60108883A (en) * 1983-11-18 1985-06-14 株式会社日立製作所 Document editing apparatus

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