JPS529324A - Light pen malfunction preventing method - Google Patents

Light pen malfunction preventing method

Info

Publication number
JPS529324A
JPS529324A JP50084933A JP8493375A JPS529324A JP S529324 A JPS529324 A JP S529324A JP 50084933 A JP50084933 A JP 50084933A JP 8493375 A JP8493375 A JP 8493375A JP S529324 A JPS529324 A JP S529324A
Authority
JP
Japan
Prior art keywords
light pen
preventing method
malfunction preventing
light
malfunction
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.)
Granted
Application number
JP50084933A
Other languages
Japanese (ja)
Other versions
JPS5415734B2 (en
Inventor
Hiroyuki Naito
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 JP50084933A priority Critical patent/JPS529324A/en
Publication of JPS529324A publication Critical patent/JPS529324A/en
Publication of JPS5415734B2 publication Critical patent/JPS5415734B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To eliminate light noises with a simple constitution and prevent malfunction of a light pen by generating a trigger pulse with a light pen input and by producing a light pen output with a logical product of the trigger pulses.
COPYRIGHT: (C)1977,JPO&Japio
JP50084933A 1975-07-12 1975-07-12 Light pen malfunction preventing method Granted JPS529324A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50084933A JPS529324A (en) 1975-07-12 1975-07-12 Light pen malfunction preventing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50084933A JPS529324A (en) 1975-07-12 1975-07-12 Light pen malfunction preventing method

Publications (2)

Publication Number Publication Date
JPS529324A true JPS529324A (en) 1977-01-24
JPS5415734B2 JPS5415734B2 (en) 1979-06-16

Family

ID=13844473

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50084933A Granted JPS529324A (en) 1975-07-12 1975-07-12 Light pen malfunction preventing method

Country Status (1)

Country Link
JP (1) JPS529324A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5628550A (en) * 1979-08-17 1981-03-20 Nec Corp Direct telephone connection system
JPS5980053A (en) * 1982-10-29 1984-05-09 Nec Corp Mutual connecting method of extension

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5628550A (en) * 1979-08-17 1981-03-20 Nec Corp Direct telephone connection system
JPS5980053A (en) * 1982-10-29 1984-05-09 Nec Corp Mutual connecting method of extension

Also Published As

Publication number Publication date
JPS5415734B2 (en) 1979-06-16

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