JPS573482A - Chroma erasing subcarrier signal generating circuit in chroma-key effect generator - Google Patents

Chroma erasing subcarrier signal generating circuit in chroma-key effect generator

Info

Publication number
JPS573482A
JPS573482A JP7741180A JP7741180A JPS573482A JP S573482 A JPS573482 A JP S573482A JP 7741180 A JP7741180 A JP 7741180A JP 7741180 A JP7741180 A JP 7741180A JP S573482 A JPS573482 A JP S573482A
Authority
JP
Japan
Prior art keywords
chroma
erasing
subcarrier
signal generating
generating circuit
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
JP7741180A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6134717B2 (enrdf_load_stackoverflow
Inventor
Isamu Kitahama
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP7741180A priority Critical patent/JPS573482A/ja
Priority to US06/270,464 priority patent/US4396939A/en
Publication of JPS573482A publication Critical patent/JPS573482A/ja
Publication of JPS6134717B2 publication Critical patent/JPS6134717B2/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)
  • Processing Of Color Television Signals (AREA)
JP7741180A 1980-06-09 1980-06-09 Chroma erasing subcarrier signal generating circuit in chroma-key effect generator Granted JPS573482A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP7741180A JPS573482A (en) 1980-06-09 1980-06-09 Chroma erasing subcarrier signal generating circuit in chroma-key effect generator
US06/270,464 US4396939A (en) 1980-06-09 1981-06-04 Chromakey effect apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7741180A JPS573482A (en) 1980-06-09 1980-06-09 Chroma erasing subcarrier signal generating circuit in chroma-key effect generator

Publications (2)

Publication Number Publication Date
JPS573482A true JPS573482A (en) 1982-01-08
JPS6134717B2 JPS6134717B2 (enrdf_load_stackoverflow) 1986-08-08

Family

ID=13633178

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7741180A Granted JPS573482A (en) 1980-06-09 1980-06-09 Chroma erasing subcarrier signal generating circuit in chroma-key effect generator

Country Status (1)

Country Link
JP (1) JPS573482A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS6134717B2 (enrdf_load_stackoverflow) 1986-08-08

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