DE3576446D1 - Schaltung zum verdoppeln der rasterfrequenz. - Google Patents

Schaltung zum verdoppeln der rasterfrequenz.

Info

Publication number
DE3576446D1
DE3576446D1 DE8585201370T DE3576446T DE3576446D1 DE 3576446 D1 DE3576446 D1 DE 3576446D1 DE 8585201370 T DE8585201370 T DE 8585201370T DE 3576446 T DE3576446 T DE 3576446T DE 3576446 D1 DE3576446 D1 DE 3576446D1
Authority
DE
Germany
Prior art keywords
double
circuit
grid frequency
grid
frequency
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.)
Expired - Lifetime
Application number
DE8585201370T
Other languages
English (en)
Inventor
Franciscus Wilhelmus Vreeswijk
Sing Liong Tan
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
Application granted granted Critical
Publication of DE3576446D1 publication Critical patent/DE3576446D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/06—Generation of synchronising signals
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)
DE8585201370T 1984-09-05 1985-08-30 Schaltung zum verdoppeln der rasterfrequenz. Expired - Lifetime DE3576446D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8402707A NL8402707A (nl) 1984-09-05 1984-09-05 Rasterfrequentieverdubbelingsschakeling.

Publications (1)

Publication Number Publication Date
DE3576446D1 true DE3576446D1 (de) 1990-04-12

Family

ID=19844416

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585201370T Expired - Lifetime DE3576446D1 (de) 1984-09-05 1985-08-30 Schaltung zum verdoppeln der rasterfrequenz.

Country Status (6)

Country Link
US (1) US4603351A (de)
EP (1) EP0177987B1 (de)
JP (1) JPS6165681A (de)
KR (1) KR860002924A (de)
DE (1) DE3576446D1 (de)
NL (1) NL8402707A (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2573601B1 (fr) * 1984-11-20 1987-01-23 Radiotechnique Sa Circuit pour la commutation de sources video
US5093714A (en) * 1985-03-15 1992-03-03 Canon Kabushiki Kaisha Video signal processing apparatus
GB8608876D0 (en) * 1986-04-11 1986-05-14 Rca Corp Television display system
EP0350765B1 (de) * 1988-07-12 1993-06-09 Deutsche Thomson-Brandt GmbH Transcoder
US5243422A (en) * 1990-11-13 1993-09-07 Hitachi, Ltd. Field converting method for television signals and device for realizing same
DE4237225A1 (de) * 1992-11-04 1994-05-05 Philips Patentverwaltung Anordnung zur Verdopplung der Teilbildfrequenz eines Bildsignals
US5621470A (en) * 1992-12-18 1997-04-15 Sid-Ahmed; Maher A. Interpixel and interframe interpolation of television pictures with conversion from interlaced to progressive scanning
AU5691294A (en) * 1992-12-18 1994-07-19 Maher A. Sid-Ahmed Real-time television image pixel multiplication methods and apparatus
JPH06276520A (ja) * 1993-03-22 1994-09-30 Sony Corp 画像処理装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4051531A (en) * 1970-03-26 1977-09-27 Independent Broadcasting Authority Television systems
DE2617884C2 (de) * 1976-04-23 1985-03-21 Robert Bosch Gmbh, 7000 Stuttgart Normwandler für Fernsehsignale
US4240101A (en) * 1976-10-14 1980-12-16 Micro Consultants, Limited Television standards conversion
US4276565A (en) * 1978-01-18 1981-06-30 British Broadcasting Corporation Method and apparatus for standards conversion of television signals
NL7900324A (nl) * 1979-01-16 1980-07-18 Philips Nv Rasterinterpolatieschakeling.
US4322750A (en) * 1979-05-08 1982-03-30 British Broadcasting Corporation Television display system
EP0018856B1 (de) * 1979-05-08 1990-08-16 British Broadcasting Corporation Fernseh-Wiedergabesystem
NL8100603A (nl) * 1981-02-09 1982-09-01 Philips Nv Rasterfrequentieverdubbelingsschakeling voor een televisiesignaal.
GB2113942B (en) * 1982-01-25 1985-10-30 British Broadcasting Corp Television display system

Also Published As

Publication number Publication date
NL8402707A (nl) 1986-04-01
US4603351A (en) 1986-07-29
JPS6165681A (ja) 1986-04-04
EP0177987B1 (de) 1990-03-07
KR860002924A (ko) 1986-04-30
EP0177987A1 (de) 1986-04-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee