JPH0239153B2 - - Google Patents

Info

Publication number
JPH0239153B2
JPH0239153B2 JP56107421A JP10742181A JPH0239153B2 JP H0239153 B2 JPH0239153 B2 JP H0239153B2 JP 56107421 A JP56107421 A JP 56107421A JP 10742181 A JP10742181 A JP 10742181A JP H0239153 B2 JPH0239153 B2 JP H0239153B2
Authority
JP
Japan
Prior art keywords
key signal
key
signal
circuit
edge
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
JP56107421A
Other languages
English (en)
Japanese (ja)
Other versions
JPS589476A (ja
Inventor
Yoshikazu Yamamoto
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP56107421A priority Critical patent/JPS589476A/ja
Priority to AU85650/82A priority patent/AU557901B2/en
Priority to CA000406778A priority patent/CA1187166A/en
Priority to US06/396,339 priority patent/US4488169A/en
Priority to DE8282303628T priority patent/DE3266811D1/de
Priority to EP82303628A priority patent/EP0070174B1/en
Publication of JPS589476A publication Critical patent/JPS589476A/ja
Publication of JPH0239153B2 publication Critical patent/JPH0239153B2/ja
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Circuits (AREA)
  • Processing Of Color Television Signals (AREA)
JP56107421A 1981-07-09 1981-07-09 キー信号調整装置 Granted JPS589476A (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP56107421A JPS589476A (ja) 1981-07-09 1981-07-09 キー信号調整装置
AU85650/82A AU557901B2 (en) 1981-07-09 1982-07-06 Digital chroma keying
CA000406778A CA1187166A (en) 1981-07-09 1982-07-07 Digital chromakey apparatus
US06/396,339 US4488169A (en) 1981-07-09 1982-07-08 Digital chromakey apparatus
DE8282303628T DE3266811D1 (en) 1981-07-09 1982-07-09 Digital chroma-key apparatus
EP82303628A EP0070174B1 (en) 1981-07-09 1982-07-09 Digital chroma-key apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56107421A JPS589476A (ja) 1981-07-09 1981-07-09 キー信号調整装置

Publications (2)

Publication Number Publication Date
JPS589476A JPS589476A (ja) 1983-01-19
JPH0239153B2 true JPH0239153B2 (enrdf_load_stackoverflow) 1990-09-04

Family

ID=14458713

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56107421A Granted JPS589476A (ja) 1981-07-09 1981-07-09 キー信号調整装置

Country Status (2)

Country Link
JP (1) JPS589476A (enrdf_load_stackoverflow)
AU (1) AU557901B2 (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60182284A (ja) * 1984-02-28 1985-09-17 Mitsubishi Electric Corp デイジタル伝送システム
JPS60180387A (ja) * 1984-02-28 1985-09-14 Mitsubishi Electric Corp 表示装置
JPS60180381A (ja) * 1984-02-28 1985-09-14 Mitsubishi Electric Corp 信号処理装置
WO1986006234A1 (en) * 1985-04-12 1986-10-23 Ampex Corporation Apparatus and method for processing previously processed video signals
US4800432A (en) * 1986-10-24 1989-01-24 The Grass Valley Group, Inc. Video Difference key generator
AU628731B2 (en) * 1990-04-11 1992-09-17 Rank Cintel Limited Improved keying methods for digital video
DE69625313T2 (de) * 1995-05-12 2003-10-16 Sony Corp., Tokio/Tokyo Vorrichtung zur erzeugung von stanzsignalen, vorrichtung zur bilderstellung, verfahren zur erzeugung von stanzsignalen und verfahren zur bilderstellung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5315022A (en) * 1976-07-27 1978-02-10 Nec Corp Chroma gate signal generator
JPS6021514B2 (ja) * 1977-07-12 1985-05-28 新明和工業株式会社 テレビ映像信号の合成回路
NL7903241A (nl) * 1979-04-25 1980-10-28 Philips Nv Televisie sleutelsignaalschakeling.

Also Published As

Publication number Publication date
AU8565082A (en) 1983-01-13
JPS589476A (ja) 1983-01-19
AU557901B2 (en) 1987-01-15

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