JPS5616276A - Optical type character reader - Google Patents

Optical type character reader

Info

Publication number
JPS5616276A
JPS5616276A JP9067679A JP9067679A JPS5616276A JP S5616276 A JPS5616276 A JP S5616276A JP 9067679 A JP9067679 A JP 9067679A JP 9067679 A JP9067679 A JP 9067679A JP S5616276 A JPS5616276 A JP S5616276A
Authority
JP
Japan
Prior art keywords
read
sight
document
magnification
marks
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
JP9067679A
Other languages
Japanese (ja)
Inventor
Hiromi Nanba
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP9067679A priority Critical patent/JPS5616276A/en
Publication of JPS5616276A publication Critical patent/JPS5616276A/en
Pending legal-status Critical Current

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Landscapes

  • Character Input (AREA)

Abstract

PURPOSE: To increase the read-in accuracy, by providing two calibration reference mark within the sight of the solidstate image sensor and compensating the expansion or shrinking of document and magnification of optical system.
CONSTITUTION: On the read-in plane of the document 3 fed to the carrying path 2 of the optical character reader 1, the light from the light source 4 is radiated and the information from the document 3 is read in two read-in elements 5. Three calbration reference marks 6 are placed along the carrying direction of the document 3 on the carrying path 2 so that the marks 6 can be within the sight of the two read-in elements and the size of the sight can be specified. Further, based on the marks 6, after the measurement of the actual sight of the read-in elements 5, the signal processing circuit compares the actual sight with the reference sight set from the marks 6 to detect the magnification of the optical system corresponding to each of read-in element 5. Further, the signal processing circuit operates the magnification of the document 3 and the expansion and shrinking rate for the magnification compensation of the coordinate data and the expansion and shrinking compensation, allowing to increase the read-in accuracy.
COPYRIGHT: (C)1981,JPO&Japio
JP9067679A 1979-07-17 1979-07-17 Optical type character reader Pending JPS5616276A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9067679A JPS5616276A (en) 1979-07-17 1979-07-17 Optical type character reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9067679A JPS5616276A (en) 1979-07-17 1979-07-17 Optical type character reader

Publications (1)

Publication Number Publication Date
JPS5616276A true JPS5616276A (en) 1981-02-17

Family

ID=14005134

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9067679A Pending JPS5616276A (en) 1979-07-17 1979-07-17 Optical type character reader

Country Status (1)

Country Link
JP (1) JPS5616276A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6110696A (en) * 1984-05-29 1986-01-18 グロード　スリス Well drilling apparatus and method
JPS62279482A (en) * 1986-05-29 1987-12-04 Canon Inc Character recognizing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6110696A (en) * 1984-05-29 1986-01-18 グロード　スリス Well drilling apparatus and method
JPS62279482A (en) * 1986-05-29 1987-12-04 Canon Inc Character recognizing device

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