WO1996016505A3 - System and method for generating video data and video control data in a computer system - Google Patents

System and method for generating video data and video control data in a computer system Download PDF

Info

Publication number
WO1996016505A3
WO1996016505A3 PCT/US1995/013705 US9513705W WO9616505A3 WO 1996016505 A3 WO1996016505 A3 WO 1996016505A3 US 9513705 W US9513705 W US 9513705W WO 9616505 A3 WO9616505 A3 WO 9616505A3
Authority
WO
WIPO (PCT)
Prior art keywords
display memory
video
pixel data
data
components
Prior art date
Application number
PCT/US1995/013705
Other languages
French (fr)
Other versions
WO1996016505A2 (en
Inventor
David C Baker
Eric J Schell
Daniel P Mulligan
Original Assignee
Brooktree 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 Brooktree Corp filed Critical Brooktree Corp
Priority to DE69525261T priority Critical patent/DE69525261T2/en
Priority to EP95938869A priority patent/EP0791265B1/en
Priority to JP8516858A priority patent/JPH10509291A/en
Publication of WO1996016505A2 publication Critical patent/WO1996016505A2/en
Publication of WO1996016505A3 publication Critical patent/WO1996016505A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/641—Multi-purpose receivers, e.g. for auxiliary information
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/04—Partial updating of the display screen
    • 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
    • G09G2340/02—Handling of images in compressed format, e.g. JPEG, MPEG
    • 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
    • G09G2340/12—Overlay of images, i.e. displayed pixel being the result of switching between the corresponding input pixels
    • G09G2340/125—Overlay of images, i.e. displayed pixel being the result of switching between the corresponding input pixels wherein one of the images is motion video
    • 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
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • G09G5/06—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed using colour palettes, e.g. look-up tables
    • 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
    • G09G5/393—Arrangements for updating the contents of the bit-mapped memory
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/06—Transmission systems characterised by the manner in which the individual colour picture signal components are combined
    • H04N11/12—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only
    • H04N11/14—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/06—Transmission systems characterised by the manner in which the individual colour picture signal components are combined
    • H04N11/12—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only
    • H04N11/14—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system
    • H04N11/16—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system the chrominance signal alternating in phase, e.g. PAL-system

Abstract

A system and method for generating composite video signals in a computer are disclosed. Digital pixel data may be processed by software to form component video pixel data, which may include luminance and chrominance components. A chrominance look-up table is provided in a display memory and is used for modulation of the chrominance components. The modulated components are then combined to form digital composite video pixel data which may be stored in a frame buffer in the display memory. Video control information is precalculated and stored in the display memory in advance. The digital composite video pixel data and video control information are then recovered from the display memory to produce a formatted stream of video data. The architecture of this system greatly reduces hardware complexity and bandwidth requirements. In addition, the process may be controlled by a media stream controller which is also adapted for audio and graphics processing. This allows the display memory and various other components to be shared by multiple media subsystems.
PCT/US1995/013705 1994-11-10 1995-10-27 System and method for generating video data and video control data in a computer system WO1996016505A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE69525261T DE69525261T2 (en) 1994-11-10 1995-10-27 SYSTEM AND METHOD FOR GENERATING VIDEO AND SYNCHRONIZATION DATA IN A COMPUTER SYSTEM
EP95938869A EP0791265B1 (en) 1994-11-10 1995-10-27 System and method for generating video in a computer system
JP8516858A JPH10509291A (en) 1994-11-10 1995-10-27 Apparatus and method for generating video in a computer system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US33735094A 1994-11-10 1994-11-10
US08/337,350 1994-11-10

Publications (2)

Publication Number Publication Date
WO1996016505A2 WO1996016505A2 (en) 1996-05-30
WO1996016505A3 true WO1996016505A3 (en) 1996-09-12

Family

ID=23320207

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/013705 WO1996016505A2 (en) 1994-11-10 1995-10-27 System and method for generating video data and video control data in a computer system

Country Status (5)

Country Link
US (3) US5812204A (en)
EP (1) EP0791265B1 (en)
JP (1) JPH10509291A (en)
DE (1) DE69525261T2 (en)
WO (1) WO1996016505A2 (en)

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Also Published As

Publication number Publication date
US5790110A (en) 1998-08-04
DE69525261T2 (en) 2002-10-10
US5812204A (en) 1998-09-22
JPH10509291A (en) 1998-09-08
EP0791265B1 (en) 2002-01-30
US5777601A (en) 1998-07-07
DE69525261D1 (en) 2002-03-14
EP0791265A2 (en) 1997-08-27
WO1996016505A2 (en) 1996-05-30

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