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JPS56140786A - Processing system of color television signal - Google Patents
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JPS56140786A - Processing system of color television signal - Google Patents

Processing system of color television signal

Info

Publication number
JPS56140786A
JPS56140786A JP4299280A JP4299280A JPS56140786A JP S56140786 A JPS56140786 A JP S56140786A JP 4299280 A JP4299280 A JP 4299280A JP 4299280 A JP4299280 A JP 4299280A JP S56140786 A JPS56140786 A JP S56140786A
Authority
JP
Japan
Prior art keywords
signal
outputs
color
operator
output
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
JP4299280A
Other languages
Japanese (ja)
Other versions
JPS636198B2 (en
Inventor
Toshiro Watanabe
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP4299280A priority Critical patent/JPS56140786A/en
Priority to US06/249,699 priority patent/US4394680A/en
Publication of JPS56140786A publication Critical patent/JPS56140786A/en
Publication of JPS636198B2 publication Critical patent/JPS636198B2/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)

Abstract

PURPOSE:To perform a process of various color signals, by storing two kinds of color TV signals in the two pairs of picture element row storing means and then performing a level control through using the output given from a correlation circuit carrying out various types of operations as the keying signal. CONSTITUTION:The registers 1-4 store the digital color TV signal A and supply the outputs a0-a2 to the correlation operator 10. At the same time, the registers 5-9 store the digital color TV signal B and supply the outputs b0-b2 to the operator 10. The output of the operator 10 is supplied to the correlation signal generators 11-13 to be multiplied by the weight coefficient respectively, and then supplied to the keying signal generator 14 to obtain the keying signal. The digital TV signal level control circuits 15 and 16 are controlled by the keying signal, and the outputs of circuits 15 and 16 are added to obtain an output.
JP4299280A 1980-04-01 1980-04-01 Processing system of color television signal Granted JPS56140786A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP4299280A JPS56140786A (en) 1980-04-01 1980-04-01 Processing system of color television signal
US06/249,699 US4394680A (en) 1980-04-01 1981-03-31 Color television signal processing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4299280A JPS56140786A (en) 1980-04-01 1980-04-01 Processing system of color television signal

Publications (2)

Publication Number Publication Date
JPS56140786A true JPS56140786A (en) 1981-11-04
JPS636198B2 JPS636198B2 (en) 1988-02-08

Family

ID=12651517

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4299280A Granted JPS56140786A (en) 1980-04-01 1980-04-01 Processing system of color television signal

Country Status (1)

Country Link
JP (1) JPS56140786A (en)

Also Published As

Publication number Publication date
JPS636198B2 (en) 1988-02-08

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