KR940027507A - Fade control circuit of camcorder - Google Patents

Fade control circuit of camcorder Download PDF

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Publication number
KR940027507A
KR940027507A KR1019930007667A KR930007667A KR940027507A KR 940027507 A KR940027507 A KR 940027507A KR 1019930007667 A KR1019930007667 A KR 1019930007667A KR 930007667 A KR930007667 A KR 930007667A KR 940027507 A KR940027507 A KR 940027507A
Authority
KR
South Korea
Prior art keywords
signal
fade
title
luminance
color difference
Prior art date
Application number
KR1019930007667A
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Korean (ko)
Other versions
KR970004187B1 (en
Inventor
권현구
Original Assignee
배순훈
대우전자 주식회사
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Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019930007667A priority Critical patent/KR970004187B1/en
Publication of KR940027507A publication Critical patent/KR940027507A/en
Application granted granted Critical
Publication of KR970004187B1 publication Critical patent/KR970004187B1/en

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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
    • H04N5/2621—Cameras specially adapted for the electronic generation of special effects during image pickup, e.g. digital cameras, camcorders, video cameras having integrated special effects capability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Circuits (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

매트릭스에 스위칭회로(22) 페이드신호 출력제어회로(23) 앤코더(24) 및 휘도 페이드회로(27)를 구비하는 캠코더의 페이드 제어회로로써, 페이드신호 출력제어회로(23)는 타이틀 블랭킹 신호에 따라 입력되는 페이드 신호를 선택적으로 출력함.스위칭회로(22)는 타이틀 블랭킹신호에 따라 타이틀용 색차신호 및 휘도신호 또는 촬상된 피사체의 색차신호 및 휘도신호를 선택적으로 출력함. 앤코더(24)는 스위칭회로(22)로부터 입력되는 색차신호를 변조하고 페이드 신호출력회로(23)의 페이드 신호에 따라 페이드인, 아웃하여 출력하고, 휘도페이드 회로(27)는 스위칭회로(22)로부터 입력된 휘도신호를 페이드 신호출력회로(23)의 페이드 신호에 따라 페이드 인, 아웃하여 출력함.A fade control circuit of a camcorder having a switching circuit 22, a fade signal output control circuit 23, an encoder 24, and a luminance fade circuit 27 in a matrix, and the fade signal output control circuit 23 is connected to a title blanking signal. And outputting a fade signal input accordingly. The switching circuit 22 selectively outputs a color difference signal and a luminance signal for a title or a color difference signal and a luminance signal of a photographed subject according to the title blanking signal. The encoder 24 modulates the color difference signal input from the switching circuit 22 and fades in and out according to the fade signal of the fade signal output circuit 23, and the luminance fade circuit 27 outputs the switching circuit 22. Fades in and out according to the fade signal of the fade signal output circuit 23 and outputs it.

Description

캠코더의 페이드 제어회로Camcorder Fade Control Circuit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명에 따른 캠코더의 페이드 제어회로 블럭도. 제3도는 본 발명에 따른 캠코더의 페이드 제어회로에 이루어지는 페이드 신호 출력 제어회로도.2 is a block diagram of a fade control circuit of a camcorder according to the present invention. 3 is a fade signal output control circuit diagram of a fade control circuit of a camcorder according to the present invention.

Claims (2)

입력되는 타이틀용 R, G, B 색신호를 가감하여, 타이틀용 색차신호 및 휘도신호를 출력하는 매트릭스와; 상기 매트릭스의 타이틀용 색차신호 및 휘도신호와 입력되는 촬상된 피사체의 색차신호 및 휘도 신호를 타이틀 색차 신호 및 휘도신호의 기록시간임을 알리는 타이틀 블랭킹 신호에 따라 선택적으로 출력하는 제1스위칭수단과; 공급되는 페이드신호를 상기 타이틀 블랭킹 신호에 따라 선택적으로 출력하는 페이드신호 출력제어수단과; 상기 제1스위칭 수단의 색차신호를 색신호로서 변조하고, 상기 페이드 신호출력 제어수단으로부터 인가되는 페이드 신호에 따라 변조된 색신호를 페이드인, 아웃하여 출력하는 엔코더와; 상기 제1스위칭수단의 휘도 신호를 상기 페이드 신호출력수단의 페이드 신호에 따라 페이드인, 아웃하여 출력하는 휘도페이드 수단을 구비하는 캠코더의 페이드 제어회로.A matrix for adding and subtracting the input R, G, and B color signals to output a title color difference signal and a luminance signal; First switching means for selectively outputting the color difference signal and the luminance signal of the title of the matrix and the color difference signal and the luminance signal of the photographed subject according to the title blanking signal indicating the recording time of the title chrominance signal and the luminance signal; Fade signal output control means for selectively outputting a supplied fade signal according to the title blanking signal; An encoder for modulating the color difference signal of the first switching means as a color signal and fading in and out of the color signal modulated according to the fade signal applied from the fade signal output control means; And fading in and out of the luminance signal of the first switching means in accordance with the fade signal of the fade signal output means. 제1항에 있어서, 상기 페이드신호출력 제어수단에 인가되는 페이드신호는 PWM 신호로 인가되며; 상기 페이드신호출력 제어수단은 인가되는 PWM 신호를 적분하는 페이드신호 적분회로와; 상기 페이드신호 적분회로의 출력을 상기 타이틀 블랭킹 신호의 입력에 따라 선택적으로 상기 엔코더 및 휘도페이드 수단에 인가하는 제2스위치 수단을 구비하는 캠코더의 페이드 제어회로.The fade signal applied to the fade signal output control means is applied as a PWM signal; The fade signal output control means includes: a fade signal integration circuit for integrating an applied PWM signal; And a second switch means for selectively applying the output of the fade signal integrating circuit to the encoder and the brightness fade means in accordance with the input of the title blanking signal. ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.※ Note: This is to be disclosed by the original application.
KR1019930007667A 1993-05-04 1993-05-04 Fade control circuit for camcorder KR970004187B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930007667A KR970004187B1 (en) 1993-05-04 1993-05-04 Fade control circuit for camcorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930007667A KR970004187B1 (en) 1993-05-04 1993-05-04 Fade control circuit for camcorder

Publications (2)

Publication Number Publication Date
KR940027507A true KR940027507A (en) 1994-12-10
KR970004187B1 KR970004187B1 (en) 1997-03-25

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ID=19354940

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930007667A KR970004187B1 (en) 1993-05-04 1993-05-04 Fade control circuit for camcorder

Country Status (1)

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Also Published As

Publication number Publication date
KR970004187B1 (en) 1997-03-25

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