FR2447122A1 - Circuit interpolateur de trames - Google Patents

Circuit interpolateur de trames

Info

Publication number
FR2447122A1
FR2447122A1 FR8000718A FR8000718A FR2447122A1 FR 2447122 A1 FR2447122 A1 FR 2447122A1 FR 8000718 A FR8000718 A FR 8000718A FR 8000718 A FR8000718 A FR 8000718A FR 2447122 A1 FR2447122 A1 FR 2447122A1
Authority
FR
France
Prior art keywords
interpolator circuit
reproduction
frame interpolator
circuit
previous
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
FR8000718A
Other languages
English (en)
Other versions
FR2447122B1 (fr
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2447122A1 publication Critical patent/FR2447122A1/fr
Application granted granted Critical
Publication of FR2447122B1 publication Critical patent/FR2447122B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0127—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level by changing the field or frame frequency of the incoming video signal, e.g. frame rate converter
    • H04N7/0132—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level by changing the field or frame frequency of the incoming video signal, e.g. frame rate converter the field or frame frequency of the incoming video signal being multiplied by a positive integer, e.g. for flicker reduction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S348/00—Television
    • Y10S348/91—Flicker reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)
  • Picture Signal Circuits (AREA)
  • Color Television Systems (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Details Of Television Scanning (AREA)

Abstract

Dans un système de télévision entrelacé, les phénomènes de sautillement et de papillotement peuvent être évités à la reproduction à l'aide d un circuit extrapolateur qui reproduit une trame précédente dans un temps de trame suivant dans des positions telles et avec des luminosités telles que la position moyenne et la luminosité moyenne des trames répétées soient égales à celles de la trame précédente. Application à la reproduction d'images de texte.
FR8000718A 1979-01-16 1980-01-14 Circuit interpolateur de trames Granted FR2447122A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7900324A NL7900324A (nl) 1979-01-16 1979-01-16 Rasterinterpolatieschakeling.

Publications (2)

Publication Number Publication Date
FR2447122A1 true FR2447122A1 (fr) 1980-08-14
FR2447122B1 FR2447122B1 (fr) 1985-05-17

Family

ID=19832462

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8000718A Granted FR2447122A1 (fr) 1979-01-16 1980-01-14 Circuit interpolateur de trames

Country Status (13)

Country Link
US (1) US4300162A (fr)
JP (1) JPS5595477A (fr)
AU (1) AU535232B2 (fr)
BE (1) BE881140A (fr)
BR (1) BR8000213A (fr)
CA (1) CA1159169A (fr)
DE (1) DE3001006A1 (fr)
ES (1) ES487670A1 (fr)
FR (1) FR2447122A1 (fr)
GB (1) GB2040641B (fr)
IT (1) IT1130858B (fr)
NL (1) NL7900324A (fr)
SE (1) SE8000260L (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8002410A (nl) * 1979-10-15 1981-04-21 Philips Nv Beeldweergeefinrichting ingericht voor het als een geinterlinieerd televisie-beeld weergeven van een gemengd beeldsignaal.
NL8004697A (nl) * 1980-08-20 1982-03-16 Philips Nv Ruisonderdrukkingsschakeling voor een videosignaal.
US4393396A (en) * 1980-08-20 1983-07-12 U.S. Philips Corporation Video signal processing circuit for noise reduction
JPS5745782A (en) * 1980-09-02 1982-03-15 Sony Corp Flicker preventing circuit
US4400719A (en) * 1981-09-08 1983-08-23 Rca Corporation Television display system with reduced line-scan artifacts
USRE32358E (en) * 1981-09-08 1987-02-17 Rca Corporation Television display system with reduced line-scan artifacts
NL8104532A (nl) * 1981-10-06 1983-05-02 Philips Nv Lijnentalomzetschakeling voor een televisiesignaal.
EP0092276B1 (fr) * 1982-04-16 1986-03-26 Laboratoires D'electronique Et De Physique Appliquee L.E.P. Dispositif d'affichage à balayage récurrent entrelacé de type télévision et oscilloscope numérique comprenant un tel dispositif
US4602273A (en) * 1983-08-30 1986-07-22 Rca Corporation Interpolated progressive-scan television display with line-crawl artifact filtration
NL8402707A (nl) * 1984-09-05 1986-04-01 Philips Nv Rasterfrequentieverdubbelingsschakeling.
NL8501582A (nl) * 1985-02-12 1986-09-01 Philips Nv Videosignaalverwerkingsschakeling voor de verwerking van een geinterlinieerd videosignaal.
US5029001A (en) * 1986-08-14 1991-07-02 Sony Corporation NTSC compatible TV signal transmitting system for improving vertical resolution
US4809070A (en) * 1987-11-06 1989-02-28 The Grass Valley Group, Inc. Method and apparatus for adding texturing highlights to a video signal
DE3810328A1 (de) * 1988-03-26 1989-10-05 Bosch Gmbh Robert Verfahren und schaltung zur kombination zweier fernsehbildsignale
US5062001A (en) * 1988-07-21 1991-10-29 Proxima Corporation Gray scale system for visual displays
US4941045A (en) * 1988-10-11 1990-07-10 Scientific-Atlanta, Inc. Method and apparatus for improving vertical definition of a television signal by scan conversion
JPH03258177A (ja) * 1990-03-08 1991-11-18 Sony Corp ノンインターレース表示装置
EP0445336B1 (fr) * 1990-03-09 1995-01-18 Deutsche ITT Industries GmbH Méthode et dispositif de réduction du scintillement du bord d'une image de télévision
US6040869A (en) * 1998-03-31 2000-03-21 Matsushita Electric Industrial Co. Ltd. Method and apparatus for converting an interlace-scan video signal into a non-interlace-scan video signal
US6346970B1 (en) 1998-08-12 2002-02-12 Focus Enhancements, Inc. Two-dimensional adjustable flicker filter
JP3551870B2 (ja) * 1999-11-24 2004-08-11 日本電気株式会社 Ｖｄｔ障害緩和装置／方法およびｖｄｔ障害危険性定量化装置／方法ならびに記録媒体
JP2002044486A (ja) * 2000-07-19 2002-02-08 Namco Ltd 情報記憶媒体、画像生成装置、画像生成システム、画像生成方法、及び画像生成プログラム

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2921124A (en) * 1956-12-10 1960-01-12 Bell Telephone Labor Inc Method and apparatus for reducing television bandwidth
NL7706512A (nl) * 1977-06-14 1978-12-18 Philips Nv Lijnentalomzetschakeling.

Also Published As

Publication number Publication date
BE881140A (fr) 1980-07-14
JPH0214833B2 (fr) 1990-04-10
DE3001006C2 (fr) 1987-12-17
NL7900324A (nl) 1980-07-18
ES487670A1 (es) 1980-06-16
IT8019165A0 (it) 1980-01-11
GB2040641A (en) 1980-08-28
AU535232B2 (en) 1984-03-08
DE3001006A1 (de) 1980-07-24
IT1130858B (it) 1986-06-18
US4300162A (en) 1981-11-10
FR2447122B1 (fr) 1985-05-17
JPS5595477A (en) 1980-07-19
CA1159169A (fr) 1983-12-20
GB2040641B (en) 1983-01-26
SE8000260L (sv) 1980-07-17
AU5455280A (en) 1980-07-24
BR8000213A (pt) 1980-09-23

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Legal Events

Date Code Title Description
ST Notification of lapse