JPS5494836A - Pattern input unit - Google Patents

Pattern input unit

Info

Publication number
JPS5494836A
JPS5494836A JP151878A JP151878A JPS5494836A JP S5494836 A JPS5494836 A JP S5494836A JP 151878 A JP151878 A JP 151878A JP 151878 A JP151878 A JP 151878A JP S5494836 A JPS5494836 A JP S5494836A
Authority
JP
Japan
Prior art keywords
original
white
measurement
electric conversion
pattern
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
JP151878A
Other languages
Japanese (ja)
Inventor
Kazuo Nakano
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP151878A priority Critical patent/JPS5494836A/en
Publication of JPS5494836A publication Critical patent/JPS5494836A/en
Pending legal-status Critical Current

Links

Landscapes

  • Character Input (AREA)
  • Image Input (AREA)

Abstract

PURPOSE: To avoid inaccuracy of pattern, information due to the dispersion in the photo electric conversion means, by providing the means automatically placing the white board on the original location, in the pattern input unit performing photo electric conversion for the pattern and letter information on the original.
CONSTITUTION: In measurement, the white plate 21 is turned automatically on the original location on the original stand 20 and the white surface 21a is opposed to the lnes 11. The light from the illumination means 9 is reflected on the white surface 2a and it reaches the photo detection element array 21 through the lens 11. Since the white surface 21a has the same reflection factor and hue as the standard original. The measurement of the output level variation of the photo detection element array 12 is enabled and it is possible to read in the original by correcting this variation. When the measurement is finished, the white plate 21 is restored to the dust proof cover 23 by rotation. After that, the original is moved to the original stand 20 with the feed rollers 4,5 and pinch rollers 6,7 and it is made for scanning photo electric conversion.
COPYRIGHT: (C)1979,JPO&Japio
JP151878A 1978-01-12 1978-01-12 Pattern input unit Pending JPS5494836A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP151878A JPS5494836A (en) 1978-01-12 1978-01-12 Pattern input unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP151878A JPS5494836A (en) 1978-01-12 1978-01-12 Pattern input unit

Publications (1)

Publication Number Publication Date
JPS5494836A true JPS5494836A (en) 1979-07-26

Family

ID=11503706

Family Applications (1)

Application Number Title Priority Date Filing Date
JP151878A Pending JPS5494836A (en) 1978-01-12 1978-01-12 Pattern input unit

Country Status (1)

Country Link
JP (1) JPS5494836A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58153328A (en) * 1982-03-09 1983-09-12 Hitachi Ltd Image sensor non-uniform light receiving sensitivity correction method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58153328A (en) * 1982-03-09 1983-09-12 Hitachi Ltd Image sensor non-uniform light receiving sensitivity correction method

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