JPS57197679A - Graphic data reader - Google Patents

Graphic data reader

Info

Publication number
JPS57197679A
JPS57197679A JP56082095A JP8209581A JPS57197679A JP S57197679 A JPS57197679 A JP S57197679A JP 56082095 A JP56082095 A JP 56082095A JP 8209581 A JP8209581 A JP 8209581A JP S57197679 A JPS57197679 A JP S57197679A
Authority
JP
Japan
Prior art keywords
circuit
period
sampling interval
continuously
reading
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
JP56082095A
Other languages
Japanese (ja)
Other versions
JPH0410117B2 (en
Inventor
Kenichi Onishi
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.)
Omron Corp
Original Assignee
Tateisi Electronics Co
Omron Tateisi Electronics Co
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 Tateisi Electronics Co, Omron Tateisi Electronics Co filed Critical Tateisi Electronics Co
Priority to JP56082095A priority Critical patent/JPS57197679A/en
Publication of JPS57197679A publication Critical patent/JPS57197679A/en
Publication of JPH0410117B2 publication Critical patent/JPH0410117B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/10—Image acquisition

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Character Input (AREA)
  • Image Input (AREA)

Abstract

PURPOSE:To freely, continuously and variably set the contracting or magnifying factor of a reading picture, by arbitrarily setting a sampling interval of reading data variably without being limited to a specific integer relation. CONSTITUTION:A period detecting circuit 8 generating a signal corresponding to a period T1 of a moving pulse P1 and a variable frequency osicllating circuit VOC9 oscillated in a period T2 corresponding to the output value of the circuit 8 are provided. A detection circuit 8 and an adjusting circuit 10 for input and output of the VOC9 are provided to continuously change the reading sampling interval. An input voltage kV1 (where; k is the coefficient of the circuit 10) is given to the VCO9 and a pulse P2 controlled with the kV1 is applied to a processing circuit 6 as a sampling timing signal. Thus, the relation of (1/T1)= n/kmX(1/T2) is obtained, where (m) and (n) are constants. Then, the sampling interval of the reading data DO can be varied with the coefficient k. Thus, the contracting and magnifying factors of a picture can continuously be made.
JP56082095A 1981-05-29 1981-05-29 Graphic data reader Granted JPS57197679A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56082095A JPS57197679A (en) 1981-05-29 1981-05-29 Graphic data reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56082095A JPS57197679A (en) 1981-05-29 1981-05-29 Graphic data reader

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP3051667A Division JPH0512488A (en) 1991-03-15 1991-03-15 Graphic data reader

Publications (2)

Publication Number Publication Date
JPS57197679A true JPS57197679A (en) 1982-12-03
JPH0410117B2 JPH0410117B2 (en) 1992-02-24

Family

ID=13764861

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56082095A Granted JPS57197679A (en) 1981-05-29 1981-05-29 Graphic data reader

Country Status (1)

Country Link
JP (1) JPS57197679A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60171579A (en) * 1984-02-17 1985-09-05 Hitachi Ltd Optical character reader
JPS60254283A (en) * 1984-05-30 1985-12-14 Tokyo Erekutoron Kk Pattern reader

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5168138A (en) * 1974-12-10 1976-06-12 Omron Tateisi Electronics Co Yomitoriseigyosochi
JPS5633772A (en) * 1979-08-25 1981-04-04 Ricoh Co Ltd Manual reading device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5168138A (en) * 1974-12-10 1976-06-12 Omron Tateisi Electronics Co Yomitoriseigyosochi
JPS5633772A (en) * 1979-08-25 1981-04-04 Ricoh Co Ltd Manual reading device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60171579A (en) * 1984-02-17 1985-09-05 Hitachi Ltd Optical character reader
JPS60254283A (en) * 1984-05-30 1985-12-14 Tokyo Erekutoron Kk Pattern reader
JPH0521272B2 (en) * 1984-05-30 1993-03-23 Tokyo Electron Ltd

Also Published As

Publication number Publication date
JPH0410117B2 (en) 1992-02-24

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