EP0069518A3 - Raster scan video display terminal and method of operation - Google Patents

Raster scan video display terminal and method of operation Download PDF

Info

Publication number
EP0069518A3
EP0069518A3 EP82303343A EP82303343A EP0069518A3 EP 0069518 A3 EP0069518 A3 EP 0069518A3 EP 82303343 A EP82303343 A EP 82303343A EP 82303343 A EP82303343 A EP 82303343A EP 0069518 A3 EP0069518 A3 EP 0069518A3
Authority
EP
European Patent Office
Prior art keywords
video display
display terminal
raster scan
scan video
raster
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
EP82303343A
Other versions
EP0069518B1 (en
EP0069518A2 (en
Inventor
Glenn E. Hunt
Michael C. Alexander
Robert S. Gittins
Gerald L. Lozano
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.)
EMC Corp
Original Assignee
Data General Corp
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 Data General Corp filed Critical Data General Corp
Publication of EP0069518A2 publication Critical patent/EP0069518A2/en
Publication of EP0069518A3 publication Critical patent/EP0069518A3/en
Application granted granted Critical
Publication of EP0069518B1 publication Critical patent/EP0069518B1/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/22Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of characters or indicia using display control signals derived from coded signals representing the characters or indicia, e.g. with a character-code memory
    • G09G5/222Control of the character-code memory
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/34Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators for rolling or scrolling
    • G09G5/343Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators for rolling or scrolling for systems having a character code-mapped display memory
EP82303343A 1981-07-06 1982-06-25 Raster scan video display terminal Expired EP0069518B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28061981A 1981-07-06 1981-07-06
US280619 1981-07-06

Publications (3)

Publication Number Publication Date
EP0069518A2 EP0069518A2 (en) 1983-01-12
EP0069518A3 true EP0069518A3 (en) 1984-08-01
EP0069518B1 EP0069518B1 (en) 1987-08-12

Family

ID=23073876

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82303343A Expired EP0069518B1 (en) 1981-07-06 1982-06-25 Raster scan video display terminal

Country Status (5)

Country Link
EP (1) EP0069518B1 (en)
JP (1) JPS5817493A (en)
AU (1) AU555384B2 (en)
CA (1) CA1189645A (en)
DE (1) DE3276976D1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4611202A (en) * 1983-10-18 1986-09-09 Digital Equipment Corporation Split screen smooth scrolling arrangement
CN1012301B (en) * 1984-10-16 1991-04-03 三洋电机株式会社 Display apparatus
JPS61151691A (en) * 1984-12-20 1986-07-10 インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション Display unit
GB2176979A (en) * 1985-06-06 1987-01-07 Aston Electronic Designs Ltd Video signal manipulation system
US4991118A (en) * 1989-04-17 1991-02-05 International Business Machines Corp. Enhanced data stream processing in a fixed function terminal

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4249172A (en) * 1979-09-04 1981-02-03 Honeywell Information Systems Inc. Row address linking control system for video display terminal
EP0031011A2 (en) * 1979-12-20 1981-07-01 International Business Machines Corporation Cathode ray tube display apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4249172A (en) * 1979-09-04 1981-02-03 Honeywell Information Systems Inc. Row address linking control system for video display terminal
EP0031011A2 (en) * 1979-12-20 1981-07-01 International Business Machines Corporation Cathode ray tube display apparatus

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ELECTRO/81 CONFERENCE RECORD, vol. 6, 7th-9th April 1981, pages 1-11, New York, US *
IBM TECHNICAL DISCLOSURE BULLETIN, vol. 21, no. 11, April 1979, pages 4332-4333, New York, US *

Also Published As

Publication number Publication date
DE3276976D1 (en) 1987-09-17
JPS5817493A (en) 1983-02-01
AU555384B2 (en) 1986-09-25
EP0069518B1 (en) 1987-08-12
AU8501982A (en) 1983-01-13
EP0069518A2 (en) 1983-01-12
CA1189645A (en) 1985-06-25

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