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HK1013160A1 - Vertical filtering method for raster scanner display - Google Patents

Vertical filtering method for raster scanner display Download PDF

Info

Publication number
HK1013160A1
HK1013160A1 HK98114169A HK98114169A HK1013160A1 HK 1013160 A1 HK1013160 A1 HK 1013160A1 HK 98114169 A HK98114169 A HK 98114169A HK 98114169 A HK98114169 A HK 98114169A HK 1013160 A1 HK1013160 A1 HK 1013160A1
Authority
HK
Hong Kong
Prior art keywords
data
pixel data
pixel
lines
plane
Prior art date
Application number
HK98114169A
Other languages
German (de)
English (en)
French (fr)
Chinese (zh)
Other versions
HK1013160B (en
Inventor
G. Perlman Stephen
M. Okun Jerome
H. Palevich John
A. Lundblad James
Original Assignee
Apple 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 Apple Inc. filed Critical Apple Inc.
Publication of HK1013160A1 publication Critical patent/HK1013160A1/en
Publication of HK1013160B publication Critical patent/HK1013160B/en

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G1/00Control 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
    • G09G1/06Control 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
    • G09G1/14Control 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/36Control 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
    • G09G5/39Control of the bit-mapped memory
    • G09G5/395Arrangements specially adapted for transferring the contents of the bit-mapped memory to the screen
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00Image enhancement or restoration
    • G06T5/20Image enhancement or restoration using local operators
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/36Control 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00Command of the display device
    • G09G2310/02Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0224Details of interlacing
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0247Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0271Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • G09G2320/0276Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00Aspects of the architecture of display systems
    • G09G2360/12Frame memory handling
    • G09G2360/123Frame memory handling using interleaving
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02Control 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
    • G09G5/06Control 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Image Processing (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Manipulator (AREA)
  • Facsimile Image Signal Circuits (AREA)
HK98114169.9A 1988-12-23 1998-12-21 Vertical filtering method for raster scanner display HK1013160B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US290182 1988-12-23
US07/290,182 US5005011A (en) 1988-12-23 1988-12-23 Vertical filtering apparatus for raster scanned display

Publications (2)

Publication Number Publication Date
HK1013160A1 true HK1013160A1 (en) 1999-08-13
HK1013160B HK1013160B (en) 2000-05-05

Family

ID=

Also Published As

Publication number Publication date
NL193229B (nl) 1998-11-02
HK1012457A1 (en) 1999-07-30
GB2233867A (en) 1991-01-16
DE68928923T2 (de) 1999-08-05
ATE169419T1 (de) 1998-08-15
NL193229C (nl) 1999-03-03
KR910700513A (ko) 1991-03-15
US5005011A (en) 1991-04-02
CA1320600C (en) 1993-07-20
DE68928773D1 (de) 1998-09-10
KR0138991B1 (ko) 1998-06-15
EP0404911B1 (en) 1996-05-15
WO1990007767A1 (en) 1990-07-12
DE68926502D1 (de) 1996-06-20
ATE176353T1 (de) 1999-02-15
EP0685829A1 (en) 1995-12-06
HK1012458A1 (en) 1999-07-30
DE3991534T1 (de) 1991-04-04
GB2233867B (en) 1993-09-08
ATE168489T1 (de) 1998-08-15
ATE138216T1 (de) 1996-06-15
NL8921391A (nl) 1990-12-03
EP0685829B1 (en) 1998-07-15
JPH03504171A (ja) 1991-09-12
EP0681280B1 (en) 1999-01-27
AU4828390A (en) 1990-08-01
EP0681280A2 (en) 1995-11-08
DE68928744D1 (de) 1998-08-20
EP0404911A4 (en) 1992-09-09
GB9017115D0 (en) 1990-09-19
DE68928923D1 (de) 1999-03-11
EP0681281B1 (en) 1998-08-05
DE68928773T2 (de) 1999-02-11
DE68926502T2 (de) 1996-12-19
EP0681280A3 (xx) 1995-12-06
EP0404911A1 (en) 1991-01-02
EP0681281A3 (xx) 1995-12-06
EP0681281A2 (en) 1995-11-08
DE68928744T2 (de) 1999-02-11
JP3081899B2 (ja) 2000-08-28

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Legal Events

Date Code Title Description
PF Patent in force
PE Patent expired

Effective date: 20091207