FR2652699B1 - Procede et circuit pour obtenir un signal de dechiquetage electronique en technique video. - Google Patents

Procede et circuit pour obtenir un signal de dechiquetage electronique en technique video.

Info

Publication number
FR2652699B1
FR2652699B1 FR9009758A FR9009758A FR2652699B1 FR 2652699 B1 FR2652699 B1 FR 2652699B1 FR 9009758 A FR9009758 A FR 9009758A FR 9009758 A FR9009758 A FR 9009758A FR 2652699 B1 FR2652699 B1 FR 2652699B1
Authority
FR
France
Prior art keywords
obtaining
circuit
video technology
electronic shredding
signal
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 - Fee Related
Application number
FR9009758A
Other languages
English (en)
Other versions
FR2652699A1 (fr
Inventor
Klaus-Dieter Muller
Bernhard Kreling
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.)
Philips GmbH
Original Assignee
BTS Broadcast Television Systems GmbH
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 BTS Broadcast Television Systems GmbH filed Critical BTS Broadcast Television Systems GmbH
Publication of FR2652699A1 publication Critical patent/FR2652699A1/fr
Application granted granted Critical
Publication of FR2652699B1 publication Critical patent/FR2652699B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H04N9/74—Circuits for processing colour signals for obtaining special effects
    • H04N9/75—Chroma key
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/272—Means for inserting a foreground image in a background image, i.e. inlay, outlay
    • H04N5/275—Generation of keying signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Processing Of Color Television Signals (AREA)
  • Studio Circuits (AREA)
FR9009758A 1989-09-30 1990-07-31 Procede et circuit pour obtenir un signal de dechiquetage electronique en technique video. Expired - Fee Related FR2652699B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3932757A DE3932757C2 (de) 1989-09-30 1989-09-30 Verfahren und Anordnung zur Ableitung eines Stanzsignals

Publications (2)

Publication Number Publication Date
FR2652699A1 FR2652699A1 (fr) 1991-04-05
FR2652699B1 true FR2652699B1 (fr) 1997-08-01

Family

ID=6390608

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9009758A Expired - Fee Related FR2652699B1 (fr) 1989-09-30 1990-07-31 Procede et circuit pour obtenir un signal de dechiquetage electronique en technique video.

Country Status (4)

Country Link
US (1) US5140409A (fr)
DE (1) DE3932757C2 (fr)
FR (1) FR2652699B1 (fr)
GB (1) GB2239573B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5202762A (en) * 1991-09-10 1993-04-13 Ultimatte Corporation Method and apparatus for applying correction to a signal used to modulate a background video signal to be combined with a foreground video signal
GB9813632D0 (en) * 1998-06-24 1998-08-26 Robinson Alan W Outside televised broadcast shadow compensator

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7509871A (nl) * 1975-08-20 1977-02-22 Philips Nv Kleurentelevisie chroma-sleutelsignaalgenerator.
GB2004435B (en) * 1977-09-13 1982-06-30 Secr Defence Image discriminators
JPS5793781A (en) * 1980-12-03 1982-06-10 Matsushita Electric Ind Co Ltd Video synthesizer
JPS5836076A (ja) * 1981-08-26 1983-03-02 Shin Meiwa Ind Co Ltd 映像合成装置
JPS60138682A (ja) * 1983-12-27 1985-07-23 Ricoh Co Ltd 色識別方法
GB2158320A (en) * 1984-04-26 1985-11-06 Philips Electronic Associated Generating a chroma keying signal
US4758892A (en) * 1984-04-27 1988-07-19 Ampex Corporation System for producing a video combine from multiple video images
JPS61281679A (ja) * 1985-06-06 1986-12-12 Victor Co Of Japan Ltd 特殊効果増幅器におけるキ−イング信号発生装置
JPS6211392A (ja) * 1985-07-09 1987-01-20 Victor Co Of Japan Ltd キ−イング信号発生回路
US4771192A (en) * 1986-11-14 1988-09-13 The Grass Valley Group, Inc. Digital clip and gain circuit
US4947255A (en) * 1988-09-19 1990-08-07 The Grass Valley Group, Inc. Video luminance self keyer
US4963977A (en) * 1988-12-21 1990-10-16 The Grass Valley Group, Inc. Apparatus for generating a video signal representing a field of spatially varying color

Also Published As

Publication number Publication date
DE3932757A1 (de) 1991-04-11
FR2652699A1 (fr) 1991-04-05
US5140409A (en) 1992-08-18
GB2239573A (en) 1991-07-03
GB2239573B (en) 1994-03-02
GB9021100D0 (en) 1990-11-14
DE3932757C2 (de) 1998-07-23

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Legal Events

Date Code Title Description
CA Change of address
CD Change of name or company name
TP Transmission of property
TP Transmission of property
ST Notification of lapse

Effective date: 20060331