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GB2486431B - Scaling of graphical data - Google Patents

Scaling of graphical data

Info

Publication number
GB2486431B
GB2486431B GB1021154.8A GB201021154A GB2486431B GB 2486431 B GB2486431 B GB 2486431B GB 201021154 A GB201021154 A GB 201021154A GB 2486431 B GB2486431 B GB 2486431B
Authority
GB
United Kingdom
Prior art keywords
scaling
graphical data
display
data
display device
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.)
Active
Application number
GB1021154.8A
Other versions
GB201021154D0 (en
GB2486431A (en
Inventor
Andrew John Fisher
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.)
DisplayLink UK Ltd
Original Assignee
DisplayLink UK 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 DisplayLink UK Ltd filed Critical DisplayLink UK Ltd
Priority to GB1021154.8A priority Critical patent/GB2486431B/en
Publication of GB201021154D0 publication Critical patent/GB201021154D0/en
Publication of GB2486431A publication Critical patent/GB2486431A/en
Application granted granted Critical
Publication of GB2486431B publication Critical patent/GB2486431B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • 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
    • G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • G09G5/006—Details of the interface to the display terminal
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/04—Changes in size, position or resolution of an image
    • G09G2340/0407—Resolution change, inclusive of the use of different resolutions for different screen areas

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Information Transfer Systems (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

A display system comprises a data processing device 10, a display device 12b and a display control device 22 connected to the data processing device, such as via a USB connection, and to the display device, for example by a VGA connection. The data processing device performs a scaling of graphical data to an integer divisor of a display area dimension of the display device. The scaled graphical data is transmitted to the display control device which performs a second scaling of the received scaled graphical data, thereby scaling the scaled graphical data to the display area dimension and transmits the twice scaled graphical data to the display device. The display device receives and displays the twice scaled graphical data. The scaling performed by the data processing device may be non-linear downscaling to reduce the amount of graphical data to below the USB connection bandwidth. The second scaling may be simple linear upscaling.
GB1021154.8A 2010-12-14 2010-12-14 Scaling of graphical data Active GB2486431B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1021154.8A GB2486431B (en) 2010-12-14 2010-12-14 Scaling of graphical data

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1021154.8A GB2486431B (en) 2010-12-14 2010-12-14 Scaling of graphical data

Publications (3)

Publication Number Publication Date
GB201021154D0 GB201021154D0 (en) 2011-01-26
GB2486431A GB2486431A (en) 2012-06-20
GB2486431B true GB2486431B (en) 2013-10-09

Family

ID=43567136

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1021154.8A Active GB2486431B (en) 2010-12-14 2010-12-14 Scaling of graphical data

Country Status (1)

Country Link
GB (1) GB2486431B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3472806A4 (en) 2016-06-17 2020-02-26 Immersive Robotics Pty Ltd IMAGE COMPRESSION METHOD AND DEVICE
AU2018217434C1 (en) 2017-02-08 2023-04-27 Immersive Robotics Pty Ltd Displaying content to users in a multiplayer venue
CN110999287A (en) 2017-06-05 2020-04-10 因默希弗机器人私人有限公司 Digital content stream compression
CN111699693A (en) 2017-11-21 2020-09-22 因默希弗机器人私人有限公司 Image compression for digital reality
AU2018373495B2 (en) 2017-11-21 2023-01-05 Immersive Robotics Pty Ltd Frequency component selection for image compression

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040117538A1 (en) * 2002-12-11 2004-06-17 Pei-Chung Liu USB-to-VGA converter
WO2008029188A1 (en) * 2006-09-06 2008-03-13 Nokia Corporation Mobile terminal device, dongle and external display device having an enhanced video display interface
GB2447185A (en) * 2005-12-14 2008-09-03 Lenovo Displaying system and method
US20100231611A1 (en) * 2009-03-10 2010-09-16 Kabushiki Kaisha Toshiba Image processing apparatus and image processing method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040117538A1 (en) * 2002-12-11 2004-06-17 Pei-Chung Liu USB-to-VGA converter
GB2447185A (en) * 2005-12-14 2008-09-03 Lenovo Displaying system and method
WO2008029188A1 (en) * 2006-09-06 2008-03-13 Nokia Corporation Mobile terminal device, dongle and external display device having an enhanced video display interface
US20100231611A1 (en) * 2009-03-10 2010-09-16 Kabushiki Kaisha Toshiba Image processing apparatus and image processing method thereof

Also Published As

Publication number Publication date
GB201021154D0 (en) 2011-01-26
GB2486431A (en) 2012-06-20

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Free format text: REGISTERED BETWEEN 20121004 AND 20121010