CA2058251A1 - Method and apparatus for increasing the speed of operation of a double buffered display system - Google Patents

Method and apparatus for increasing the speed of operation of a double buffered display system

Info

Publication number
CA2058251A1
CA2058251A1 CA002058251A CA2058251A CA2058251A1 CA 2058251 A1 CA2058251 A1 CA 2058251A1 CA 002058251 A CA002058251 A CA 002058251A CA 2058251 A CA2058251 A CA 2058251A CA 2058251 A1 CA2058251 A1 CA 2058251A1
Authority
CA
Canada
Prior art keywords
output display
display system
increasing
speed
double buffered
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
CA002058251A
Other languages
French (fr)
Other versions
CA2058251C (en
Inventor
Guy Moffat
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.)
Sun Microsystems Inc
Original Assignee
Guy Moffat
Sun Microsystems, Inc.
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 Guy Moffat, Sun Microsystems, Inc. filed Critical Guy Moffat
Publication of CA2058251A1 publication Critical patent/CA2058251A1/en
Application granted granted Critical
Publication of CA2058251C publication Critical patent/CA2058251C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • 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
    • G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
    • G09G5/39—Control of the bit-mapped memory
    • G09G5/399—Control of the bit-mapped memory using two or more bit-mapped memories, the operations of which are switched in time, e.g. ping-pong buffers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/12—Frame memory handling
    • G09G2360/123—Frame memory handling using interleaving

Abstract

An output display system including an output display; apparatus for controlling the writing of information to the output display; and a double buffered memory including a first bank of video random access memory for furnishing information to the output display, a second bank of video random access memory for furnishing information to the output display, and apparatus for addressing alternate banks of memory as each line of the output display in a frame is written.
CA002058251A 1990-12-21 1991-12-20 Method and apparatus for increasing the speed of operation of a double buffered display system Expired - Fee Related CA2058251C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US63201690A 1990-12-21 1990-12-21
US632,016 1990-12-21

Publications (2)

Publication Number Publication Date
CA2058251A1 true CA2058251A1 (en) 1992-06-22
CA2058251C CA2058251C (en) 2002-04-23

Family

ID=24533733

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002058251A Expired - Fee Related CA2058251C (en) 1990-12-21 1991-12-20 Method and apparatus for increasing the speed of operation of a double buffered display system

Country Status (6)

Country Link
US (1) US5587726A (en)
EP (1) EP0492938B1 (en)
JP (1) JP3243724B2 (en)
KR (1) KR960004652B1 (en)
CA (1) CA2058251C (en)
DE (1) DE69114825T2 (en)

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Also Published As

Publication number Publication date
EP0492938B1 (en) 1995-11-22
US5587726A (en) 1996-12-24
KR920013134A (en) 1992-07-28
DE69114825T2 (en) 1996-08-08
DE69114825D1 (en) 1996-01-04
KR960004652B1 (en) 1996-04-11
EP0492938A2 (en) 1992-07-01
JP3243724B2 (en) 2002-01-07
CA2058251C (en) 2002-04-23
EP0492938A3 (en) 1993-06-16
JPH06138856A (en) 1994-05-20

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