JPS5715575A - Synthesis circuit for video signal - Google Patents

Synthesis circuit for video signal

Info

Publication number
JPS5715575A
JPS5715575A JP9017480A JP9017480A JPS5715575A JP S5715575 A JPS5715575 A JP S5715575A JP 9017480 A JP9017480 A JP 9017480A JP 9017480 A JP9017480 A JP 9017480A JP S5715575 A JPS5715575 A JP S5715575A
Authority
JP
Japan
Prior art keywords
video signal
synthesis circuit
level
clamped
circuit system
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.)
Pending
Application number
JP9017480A
Other languages
Japanese (ja)
Inventor
Katsuto Tsujimura
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 JP9017480A priority Critical patent/JPS5715575A/en
Publication of JPS5715575A publication Critical patent/JPS5715575A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Circuits (AREA)
  • Picture Signal Circuits (AREA)

Abstract

PURPOSE:To make the adjustment in the synthesis of video signals easy, by comparing the 1st video signal with the 2nd one and setting the clamp level of the video signal according to the level difference. CONSTITUTION:In a circuit system of video signal SA, a video signal is clamped to an arbitrary voltage VS, and in the circuit system of video signal SB, clamping is made to a video signal SB' passing through a buffer amplifier 6, by making the level of a video signal SA' as the reference when the clamped video signal SA passes through a buffer amplifier 5.
JP9017480A 1980-07-02 1980-07-02 Synthesis circuit for video signal Pending JPS5715575A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9017480A JPS5715575A (en) 1980-07-02 1980-07-02 Synthesis circuit for video signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9017480A JPS5715575A (en) 1980-07-02 1980-07-02 Synthesis circuit for video signal

Publications (1)

Publication Number Publication Date
JPS5715575A true JPS5715575A (en) 1982-01-26

Family

ID=13991117

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9017480A Pending JPS5715575A (en) 1980-07-02 1980-07-02 Synthesis circuit for video signal

Country Status (1)

Country Link
JP (1) JPS5715575A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61156978A (en) * 1984-12-21 1986-07-16 ア−ルシ−エ−　コ−ポレ−ション Tv camera
JPS6384381A (en) * 1985-09-25 1988-04-14 アールシーエー　トムソン　ライセンシング　コーポレイシヨン video signal processing equipment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5412520A (en) * 1977-06-29 1979-01-30 Sony Corp Color television picture receiver

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5412520A (en) * 1977-06-29 1979-01-30 Sony Corp Color television picture receiver

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61156978A (en) * 1984-12-21 1986-07-16 ア−ルシ−エ−　コ−ポレ−ション Tv camera
JPS6384381A (en) * 1985-09-25 1988-04-14 アールシーエー　トムソン　ライセンシング　コーポレイシヨン video signal processing equipment

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