JPS5451723A - Mark reading system - Google Patents

Mark reading system

Info

Publication number
JPS5451723A
JPS5451723A JP11784077A JP11784077A JPS5451723A JP S5451723 A JPS5451723 A JP S5451723A JP 11784077 A JP11784077 A JP 11784077A JP 11784077 A JP11784077 A JP 11784077A JP S5451723 A JPS5451723 A JP S5451723A
Authority
JP
Japan
Prior art keywords
mark
pcm
row
entry part
cancelled
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
JP11784077A
Other languages
Japanese (ja)
Inventor
Yasutomi Ejiri
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11784077A priority Critical patent/JPS5451723A/en
Publication of JPS5451723A publication Critical patent/JPS5451723A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To secure the cancel of the mark with no use of the eraser or the like, by putting the marks at the upper and lower margins of the mark entry part on the memory medium.
CONSTITUTION: The mark is put into the mark entry part painted out with horizontal thick line, and that with vertical thick line put among the mark entry parts painted out with horizontal thick lines shows the mark entry part where the mark is cancelled. Horizontal parity check mark PCM is added to the mark entry part of the 8th row, but the PCM's of the 2nd, 3rd, 6th and 7th lines of the 8th row are cancelled in accordance with correction (cancel) of the data mark. And the PCM after correction is put into the 3rd and 7th lines of the 9th row. The mark reader usually reads in the PCM from each mark entry part of the 8th row, but reads out the PCM after correction from the mark entry part of the 9th row for the cancelled PCM
COPYRIGHT: (C)1979,JPO&Japio
JP11784077A 1977-10-03 1977-10-03 Mark reading system Pending JPS5451723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11784077A JPS5451723A (en) 1977-10-03 1977-10-03 Mark reading system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11784077A JPS5451723A (en) 1977-10-03 1977-10-03 Mark reading system

Publications (1)

Publication Number Publication Date
JPS5451723A true JPS5451723A (en) 1979-04-23

Family

ID=14721552

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11784077A Pending JPS5451723A (en) 1977-10-03 1977-10-03 Mark reading system

Country Status (1)

Country Link
JP (1) JPS5451723A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04372082A (en) * 1991-06-20 1992-12-25 Fuji Xerox Co Ltd Mark entry and canceling method and mark recognizing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04372082A (en) * 1991-06-20 1992-12-25 Fuji Xerox Co Ltd Mark entry and canceling method and mark recognizing device

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