JPS5454532A - Cathode ray tube character display system - Google Patents

Cathode ray tube character display system

Info

Publication number
JPS5454532A
JPS5454532A JP12099677A JP12099677A JPS5454532A JP S5454532 A JPS5454532 A JP S5454532A JP 12099677 A JP12099677 A JP 12099677A JP 12099677 A JP12099677 A JP 12099677A JP S5454532 A JPS5454532 A JP S5454532A
Authority
JP
Japan
Prior art keywords
memory
information
dot
odd number
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
JP12099677A
Other languages
Japanese (ja)
Inventor
Tadafumi Oguro
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP12099677A priority Critical patent/JPS5454532A/en
Publication of JPS5454532A publication Critical patent/JPS5454532A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To decrease the memory capacity of refresh memory, by memorizing only the column dot signal at an odd number (or even number) to memory and generating the same column dot signal further in displaying.
CONSTITUTION: In case of display of Kanji, the resolution toward transversal direction is lower (about 1/2) sufficiently in comparison with that of longitudinal direction. In case of the character (Taka) in dot matrix constitution of 32×32 displayed, only the information corresponding to the odd number column dot shown in round marks can be memorized in the refresh memory 1, and the information of the even number column corresponding to X marks can be obtained as the information of the same content by repeating the information of the odd number column dot in displaying the information of round marks. The circuit consists of the memory 1, buffer memory 3, parallel serial converter 4, dot signal generting logic 5, binary counter 7, and gate logic 9
COPYRIGHT: (C)1979,JPO&Japio
JP12099677A 1977-10-11 1977-10-11 Cathode ray tube character display system Pending JPS5454532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12099677A JPS5454532A (en) 1977-10-11 1977-10-11 Cathode ray tube character display system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12099677A JPS5454532A (en) 1977-10-11 1977-10-11 Cathode ray tube character display system

Publications (1)

Publication Number Publication Date
JPS5454532A true JPS5454532A (en) 1979-04-28

Family

ID=14800193

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12099677A Pending JPS5454532A (en) 1977-10-11 1977-10-11 Cathode ray tube character display system

Country Status (1)

Country Link
JP (1) JPS5454532A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746590A (en) * 1980-09-03 1982-03-17 Shin Meiwa Ind Co Ltd Color video synthesizing device
CN1321527C (en) * 2002-03-15 2007-06-13 Lg电子株式会社 Method and device for displaying character on screen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746590A (en) * 1980-09-03 1982-03-17 Shin Meiwa Ind Co Ltd Color video synthesizing device
CN1321527C (en) * 2002-03-15 2007-06-13 Lg电子株式会社 Method and device for displaying character on screen
US7742049B2 (en) 2002-03-15 2010-06-22 Lg Electronics Inc. Method and apparatus for displaying characters on a screen

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