JPS5592073A - Picture reader - Google Patents

Picture reader

Info

Publication number
JPS5592073A
JPS5592073A JP34779A JP34779A JPS5592073A JP S5592073 A JPS5592073 A JP S5592073A JP 34779 A JP34779 A JP 34779A JP 34779 A JP34779 A JP 34779A JP S5592073 A JPS5592073 A JP S5592073A
Authority
JP
Japan
Prior art keywords
period
group
read
line sensor
pulses
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
JP34779A
Other languages
Japanese (ja)
Inventor
Shinji Miura
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 JP34779A priority Critical patent/JPS5592073A/en
Publication of JPS5592073A publication Critical patent/JPS5592073A/en
Pending legal-status Critical Current

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Landscapes

  • Image Input (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

PURPOSE: To make the read speed of photoelectric conversion information high by dividing photoelectric conversion elements of a line sensor into n-number groups consisting of m-number elements respectively and by providing a distributing circuit which sends pulses to n-number output lines and m-number output lines.
CONSTITUTION: This reader is constituted by line sensor 1, shift registers 21 and 22, OR gate OR1 and OR2, etc. Line sensor 1 is formed by integrating and arranging photo diodes PD1, PD2..., and they are divided into n-number groups consisting of m-number photo diodes respectively. When the period of transfer clock pulses is denoted as Tc, the output of a LED in a corresponding position of each group appears successively at period nTc at the output end, and optical information of the group appears successively at period Tc at the output end of the second group. One- line components of LEDs are divided into n-number groups, and each group is read at period nTc, and turning-on pulses are given to bases of n-number MOSFETs. Only by this operation, read of all LED information is completed by applying clock pulses required for one-line components of element scanning.
COPYRIGHT: (C)1980,JPO&Japio
JP34779A 1979-01-01 1979-01-01 Picture reader Pending JPS5592073A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP34779A JPS5592073A (en) 1979-01-01 1979-01-01 Picture reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP34779A JPS5592073A (en) 1979-01-01 1979-01-01 Picture reader

Publications (1)

Publication Number Publication Date
JPS5592073A true JPS5592073A (en) 1980-07-12

Family

ID=11471315

Family Applications (1)

Application Number Title Priority Date Filing Date
JP34779A Pending JPS5592073A (en) 1979-01-01 1979-01-01 Picture reader

Country Status (1)

Country Link
JP (1) JPS5592073A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59143465A (en) * 1983-02-03 1984-08-17 Fuji Xerox Co Ltd Original reader
JPS60224333A (en) * 1984-04-23 1985-11-08 Seiko Epson Corp Parallel/serial conversion circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5232613A (en) * 1975-09-09 1977-03-12 Nippon Telegr & Teleph Corp <Ntt> Solid scanning record driving system
JPS5349906A (en) * 1976-10-18 1978-05-06 Nippon Telegr & Teleph Corp <Ntt> Solid state scanner

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5232613A (en) * 1975-09-09 1977-03-12 Nippon Telegr & Teleph Corp <Ntt> Solid scanning record driving system
JPS5349906A (en) * 1976-10-18 1978-05-06 Nippon Telegr & Teleph Corp <Ntt> Solid state scanner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59143465A (en) * 1983-02-03 1984-08-17 Fuji Xerox Co Ltd Original reader
JPS60224333A (en) * 1984-04-23 1985-11-08 Seiko Epson Corp Parallel/serial conversion circuit

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