CA1085510A - Compressed refresh buffer - Google Patents

Compressed refresh buffer

Info

Publication number
CA1085510A
CA1085510A CA266,791A CA266791A CA1085510A CA 1085510 A CA1085510 A CA 1085510A CA 266791 A CA266791 A CA 266791A CA 1085510 A CA1085510 A CA 1085510A
Authority
CA
Canada
Prior art keywords
store
bits
digital
data stream
image
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.)
Expired
Application number
CA266,791A
Other languages
English (en)
French (fr)
Inventor
Philip A. Sheppard
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of CA1085510A publication Critical patent/CA1085510A/en
Expired 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
    • G09G1/00—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
    • G09G1/06—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows
    • G09G1/14—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible
    • G09G1/16—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible the pattern of rectangular co-ordinates extending over the whole area of the screen, i.e. television type raster
    • 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
    • G09G5/42—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of patterns using a display memory without fixed position correspondence between the display memory contents and the display position on the screen
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3066—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction by means of a mask or a bit-map

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Digital Computer Display Output (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
CA266,791A 1975-11-28 1976-11-29 Compressed refresh buffer Expired CA1085510A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4894475A GB1488538A (en) 1975-11-28 1975-11-28 Compressed refresh buffer
GB48944/75 1975-11-28

Publications (1)

Publication Number Publication Date
CA1085510A true CA1085510A (en) 1980-09-09

Family

ID=10450549

Family Applications (1)

Application Number Title Priority Date Filing Date
CA266,791A Expired CA1085510A (en) 1975-11-28 1976-11-29 Compressed refresh buffer

Country Status (6)

Country Link
JP (1) JPS5282027A (de)
CA (1) CA1085510A (de)
DE (1) DE2652900C2 (de)
FR (1) FR2333319A1 (de)
GB (1) GB1488538A (de)
IT (1) IT1072610B (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2807577A1 (de) * 1978-02-22 1979-08-23 Siemens Ag Datenspeicher fuer datensichtgeraete
DE2912886A1 (de) * 1978-03-31 1979-10-18 Eocom Corp Anordnung und verfahren zur elektronischen zusammenstellung von seiten
US4240075A (en) * 1979-06-08 1980-12-16 International Business Machines Corporation Text processing and display system with means for rearranging the spatial format of a selectable section of displayed data
JPS59178077A (ja) * 1983-03-28 1984-10-09 Dainippon Screen Mfg Co Ltd ２値画像のデ−タ圧縮方法
FR2559933B1 (fr) * 1984-02-20 1986-05-16 Comp Generale Electricite Circuit de gestion memoire pour visualisation sur ecran
FR2612665B1 (fr) * 1987-03-16 1989-06-09 Onera (Off Nat Aerospatiale) Dispositif et procede pour le traitement d'images numerisees
GB2457303A (en) * 2008-02-11 2009-08-12 Linear Algebra Technologies Randomly accessing elements of compressed matrix data by calculating offsets from non-zero values of a bitmap
GB2551291B (en) 2013-05-23 2018-02-14 Linear Algebra Tech Limited Corner detection
US9727113B2 (en) 2013-08-08 2017-08-08 Linear Algebra Technologies Limited Low power computational imaging
US9934043B2 (en) 2013-08-08 2018-04-03 Linear Algebra Technologies Limited Apparatus, systems, and methods for providing computational imaging pipeline
US11768689B2 (en) 2013-08-08 2023-09-26 Movidius Limited Apparatus, systems, and methods for low power computational imaging
US9910675B2 (en) 2013-08-08 2018-03-06 Linear Algebra Technologies Limited Apparatus, systems, and methods for low power computational imaging
US10001993B2 (en) 2013-08-08 2018-06-19 Linear Algebra Technologies Limited Variable-length instruction buffer management
US9196017B2 (en) 2013-11-15 2015-11-24 Linear Algebra Technologies Limited Apparatus, systems, and methods for removing noise from an image
US9270872B2 (en) 2013-11-26 2016-02-23 Linear Algebra Technologies Limited Apparatus, systems, and methods for removing shading effect from image
US10460704B2 (en) 2016-04-01 2019-10-29 Movidius Limited Systems and methods for head-mounted display adapted to human visual mechanism
US10949947B2 (en) 2017-12-29 2021-03-16 Intel Corporation Foveated image rendering for head-mounted display devices
CN117478149B (zh) * 2023-12-27 2024-04-16 深圳市活力天汇科技股份有限公司 一种数据压缩的方法、装置、计算机设备和可读存储介质

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5119937A (ja) * 1974-08-10 1976-02-17 Gen Corp Mojikiokuhoshiki

Also Published As

Publication number Publication date
DE2652900A1 (de) 1977-06-16
GB1488538A (en) 1977-10-12
FR2333319A1 (fr) 1977-06-24
FR2333319B1 (de) 1978-12-15
IT1072610B (it) 1985-04-10
DE2652900C2 (de) 1982-07-01
JPS5282027A (en) 1977-07-08

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Legal Events

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MKEX Expiry