FR2371031A1 - Procede et appareil d'affichage de symboles - Google Patents

Procede et appareil d'affichage de symboles

Info

Publication number
FR2371031A1
FR2371031A1 FR7734150A FR7734150A FR2371031A1 FR 2371031 A1 FR2371031 A1 FR 2371031A1 FR 7734150 A FR7734150 A FR 7734150A FR 7734150 A FR7734150 A FR 7734150A FR 2371031 A1 FR2371031 A1 FR 2371031A1
Authority
FR
France
Prior art keywords
point
picture elements
symbol
symbol display
display method
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.)
Withdrawn
Application number
FR7734150A
Other languages
English (en)
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.)
Allard Way Holdings Ltd
Original Assignee
Elliott Brothers London 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 Elliott Brothers London Ltd filed Critical Elliott Brothers London Ltd
Publication of FR2371031A1 publication Critical patent/FR2371031A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10—Intensity circuits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/22—Control 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
    • G09G5/24—Generation of individual character patterns
    • G09G5/28—Generation of individual character patterns for enhancement of character form, e.g. smoothing

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

L'invention concerne un procédé et un appareil d'affichage de symboles sur une matrice d'éléments d'image. Des positions de points de symbole nécessaires pour définir ce symbole sur la matrice d'affichage sont sélectionnées et, pour chaque point, la luminosité relative de plusieurs éléments d'image voisins de la position de ce point est réglée de manière que ce groupe d'éléments d'image crée une impression subjective que le point de symbole se trouve dans la position voulue. L'invention s'applique notamment à l'affichage de données sur un écran de tube à rayons cathodiques.
FR7734150A 1976-11-15 1977-11-14 Procede et appareil d'affichage de symboles Withdrawn FR2371031A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB47417/76A GB1586169A (en) 1976-11-15 1976-11-15 Display apparatus

Publications (1)

Publication Number Publication Date
FR2371031A1 true FR2371031A1 (fr) 1978-06-09

Family

ID=10444896

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7734150A Withdrawn FR2371031A1 (fr) 1976-11-15 1977-11-14 Procede et appareil d'affichage de symboles

Country Status (4)

Country Link
US (1) US4237457A (fr)
DE (1) DE2750770A1 (fr)
FR (1) FR2371031A1 (fr)
GB (1) GB1586169A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2479622A1 (fr) * 1980-03-28 1981-10-02 Sfena Procede de lissage des courbes generees par balayage de television

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5216755A (en) * 1980-12-04 1993-06-01 Quantel Limited Video image creation system which proportionally mixes previously created image pixel data with currently created data
GB2140257B (en) * 1980-12-04 1985-09-18 Quantel Ltd Video image creation
US5289566A (en) * 1980-12-04 1994-02-22 Quantel, Ltd. Video image creation
US4386349A (en) * 1981-04-28 1983-05-31 Sperry Corporation High resolution graphics smoothing
US4454506A (en) * 1981-09-04 1984-06-12 Bell Telephone Laboratories, Incorporated Method and circuitry for reducing flicker in symbol displays
US4558438A (en) * 1981-12-28 1985-12-10 Gulf Research & Development Company Method and apparatus for dynamically displaying geo-physical information
US4482893A (en) * 1982-02-19 1984-11-13 Edelson Steven D Cathode ray tube display system with minimized distortion from aliasing
JPS58143381A (ja) * 1982-02-19 1983-08-25 大日本スクリ−ン製造株式会社 図形表示装置における発光強度の制御方法および装置
ZA832830B (en) * 1982-04-30 1983-12-28 Int Computers Ltd Digital display systems
ZA834723B (en) * 1982-07-08 1984-03-28 Int Computers Ltd Digital display system
US4486785A (en) * 1982-09-30 1984-12-04 International Business Machines Corporation Enhancement of video images by selective introduction of gray-scale pels
US4532503A (en) * 1982-11-08 1985-07-30 International Business Machines Corporation Sequence controlled pixel configuration
US4591844A (en) * 1982-12-27 1986-05-27 General Electric Company Line smoothing for a raster display
US5459529A (en) * 1983-01-10 1995-10-17 Quantel, Ltd. Video processing for composite images
US4586037A (en) * 1983-03-07 1986-04-29 Tektronix, Inc. Raster display smooth line generation
US4679039A (en) * 1983-11-14 1987-07-07 Hewlett-Packard Company Smoothing discontinuities in the display of serial parallel line segments
US4771275A (en) * 1983-11-16 1988-09-13 Eugene Sanders Method and apparatus for assigning color values to bit map memory display locations
EP0151544B1 (fr) 1984-01-30 1993-04-21 Sextant Avionique Procédé et dispositif pour la génération, sur une surface de visualisation à réseau maillé, d'une courbe lissée
US4704605A (en) * 1984-12-17 1987-11-03 Edelson Steven D Method and apparatus for providing anti-aliased edges in pixel-mapped computer graphics
US4780711A (en) * 1985-04-12 1988-10-25 International Business Machines Corporation Anti-aliasing of raster images using assumed boundary lines
US4720705A (en) * 1985-09-13 1988-01-19 International Business Machines Corporation Virtual resolution displays
US4794387A (en) * 1985-11-18 1988-12-27 Sanders Royden C Jun Enhanced raster image producing system
US4856920A (en) * 1986-01-03 1989-08-15 Sanders Royden C Jun Dot matrix printing and scanning
US4796020A (en) * 1986-03-10 1989-01-03 American Telephone And Telegraph Company, At&T Bell Laboratories Method and apparatus for drawing antialiased lines and polygons
US4849746A (en) * 1986-04-07 1989-07-18 Dubner Computer Systems, Inc. Digital video generator
US4808984A (en) * 1986-05-05 1989-02-28 Sony Corporation Gamma corrected anti-aliased graphic display apparatus
JPH05367Y2 (fr) * 1986-05-16 1993-01-07
US4991122A (en) * 1987-10-07 1991-02-05 General Parametrics Corporation Weighted mapping of color value information onto a display screen
EP0313332B1 (fr) * 1987-10-22 1994-12-14 Rockwell International Corporation Méthode et dispositif pour tracer des lignes de haute qualité sur des dispositifs d'affichage matriciel à couleurs
US4945351A (en) * 1988-05-23 1990-07-31 Hewlett-Packard Company Technique for optimizing grayscale character displays
US4952921A (en) * 1988-06-09 1990-08-28 Rockwell International Corporation Graphic dot flare apparatus
US6211859B1 (en) 1997-03-10 2001-04-03 Chips & Technologies, Llc Method for reducing pulsing on liquid crystal displays
GB2325834B (en) * 1997-05-30 2002-03-27 Quantel Ltd An electronic graphic system
US6252578B1 (en) * 1997-10-07 2001-06-26 Intel Corporation Method for reducing flicker when displaying processed digital data on video displays having a low refresh rate
US6002407A (en) 1997-12-16 1999-12-14 Oak Technology, Inc. Cache memory and method for use in generating computer graphics texture
US6714180B1 (en) 1999-01-13 2004-03-30 Intel Corporation Automatic control of gray scaling algorithms
US20020167612A1 (en) * 2001-04-02 2002-11-14 Pelco Device and method for reducing flicker in a video display

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3812491A (en) * 1971-10-27 1974-05-21 Gec Elliott Automation Ltd Raster-scanned display devices
US3921164A (en) * 1974-06-03 1975-11-18 Sperry Rand Corp Character generator for a high resolution dot matrix display
US3969716A (en) * 1974-06-07 1976-07-13 British Broadcasting Corporation Generation of dot matrix characters on a television display
FR2347844A1 (fr) * 1976-04-08 1977-11-04 Hughes Aircraft Co Dispositif d'affichage par lignes a resolution elevee

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1343298A (en) * 1971-07-30 1974-01-10 Mullard Ltd Crt display systems
US4014011A (en) * 1975-04-25 1977-03-22 Hewlett-Packard Company Variable resolution display

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3812491A (en) * 1971-10-27 1974-05-21 Gec Elliott Automation Ltd Raster-scanned display devices
US3921164A (en) * 1974-06-03 1975-11-18 Sperry Rand Corp Character generator for a high resolution dot matrix display
US3969716A (en) * 1974-06-07 1976-07-13 British Broadcasting Corporation Generation of dot matrix characters on a television display
FR2347844A1 (fr) * 1976-04-08 1977-11-04 Hughes Aircraft Co Dispositif d'affichage par lignes a resolution elevee

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/76 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2479622A1 (fr) * 1980-03-28 1981-10-02 Sfena Procede de lissage des courbes generees par balayage de television
EP0037320A1 (fr) * 1980-03-28 1981-10-07 Societe Francaise D'equipements Pour La Navigation Aerienne (S.F.E.N.A.) Procédé pour obtenir une représentation de courbes sur un écran de télévision

Also Published As

Publication number Publication date
DE2750770A1 (de) 1978-05-18
GB1586169A (en) 1981-03-18
US4237457A (en) 1980-12-02

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Legal Events

Date Code Title Description
ST Notification of lapse