JPS5510638A - Pattern selective scanning method - Google Patents

Pattern selective scanning method

Info

Publication number
JPS5510638A
JPS5510638A JP8291878A JP8291878A JPS5510638A JP S5510638 A JPS5510638 A JP S5510638A JP 8291878 A JP8291878 A JP 8291878A JP 8291878 A JP8291878 A JP 8291878A JP S5510638 A JPS5510638 A JP S5510638A
Authority
JP
Japan
Prior art keywords
position mark
scanning method
pattern
selective scanning
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
Application number
JP8291878A
Other languages
Japanese (ja)
Inventor
Isamu Shibata
Toshitatsu Suzuki
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP8291878A priority Critical patent/JPS5510638A/en
Publication of JPS5510638A publication Critical patent/JPS5510638A/en
Pending legal-status Critical Current

Links

Landscapes

  • Character Input (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)

Abstract

PURPOSE: To enable a pattern selective scanning method, provided with a position- detecting position mark, to obtain a pattern signal of constant quality by setting the gain of a video amplifier by a voltage equivalent to the brightness of a position mark.
CONSTITUTION: On the left side of a group of character patterns, line position mark 2 is provided and on the left shoulder of the region of each character, position mark 1 is also provided. After an electron beam is positioned at position mark 1 of an assigned character pattern, a voltage equivalent to the brightness of this position mark 1 is obtained and the gain of the video amplifier is set by this voltage.
COPYRIGHT: (C)1980,JPO&Japio
JP8291878A 1978-07-10 1978-07-10 Pattern selective scanning method Pending JPS5510638A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8291878A JPS5510638A (en) 1978-07-10 1978-07-10 Pattern selective scanning method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8291878A JPS5510638A (en) 1978-07-10 1978-07-10 Pattern selective scanning method

Publications (1)

Publication Number Publication Date
JPS5510638A true JPS5510638A (en) 1980-01-25

Family

ID=13787617

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8291878A Pending JPS5510638A (en) 1978-07-10 1978-07-10 Pattern selective scanning method

Country Status (1)

Country Link
JP (1) JPS5510638A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4384272A (en) * 1979-10-06 1983-05-17 Minolta Camera Kabushiki Kaisha Image reading apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4384272A (en) * 1979-10-06 1983-05-17 Minolta Camera Kabushiki Kaisha Image reading apparatus

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