JPS5475933A - Raster scan type cathode ray tube character display unit - Google Patents

Raster scan type cathode ray tube character display unit

Info

Publication number
JPS5475933A
JPS5475933A JP14271177A JP14271177A JPS5475933A JP S5475933 A JPS5475933 A JP S5475933A JP 14271177 A JP14271177 A JP 14271177A JP 14271177 A JP14271177 A JP 14271177A JP S5475933 A JPS5475933 A JP S5475933A
Authority
JP
Japan
Prior art keywords
character
displayed
ray tube
display unit
cursor
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
JP14271177A
Other languages
Japanese (ja)
Inventor
Atsushi Tsunoda
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 JP14271177A priority Critical patent/JPS5475933A/en
Publication of JPS5475933A publication Critical patent/JPS5475933A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To eanble to display the whole characters to be required to increase the operational efficiency of the CRT display unit by using only a write pen as an input procedure and to reduce the cost of unit by removing keyboards.
CONSTITUTION: When character A is selected from characters displayed on standard characters display area 11 on the surface of cathode-ray tube (CRT) and is displayed on cursor position 12, write pen 6 is touched to character A at first and the light output detected by pen 6 is set FF 8; by the output and the and output which has detected G4 the coincidence between the address specified by cursor control part 9 and the address of memory address 5, gate G3 is opened, so that the code of character A stored in character code register 7 can be written in the address corresponding to the position where cursor 12 is displayed at present on the surface of CRT by the control of control part 9 in buffer memory 1. Therefore, character A will be displayed on cursor position 12 by reading it.
COPYRIGHT: (C)1979,JPO&Japio
JP14271177A 1977-11-30 1977-11-30 Raster scan type cathode ray tube character display unit Pending JPS5475933A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14271177A JPS5475933A (en) 1977-11-30 1977-11-30 Raster scan type cathode ray tube character display unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14271177A JPS5475933A (en) 1977-11-30 1977-11-30 Raster scan type cathode ray tube character display unit

Publications (1)

Publication Number Publication Date
JPS5475933A true JPS5475933A (en) 1979-06-18

Family

ID=15321785

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14271177A Pending JPS5475933A (en) 1977-11-30 1977-11-30 Raster scan type cathode ray tube character display unit

Country Status (1)

Country Link
JP (1) JPS5475933A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57157340A (en) * 1981-03-24 1982-09-28 Toshiba Corp Display character detecting circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57157340A (en) * 1981-03-24 1982-09-28 Toshiba Corp Display character detecting circuit

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