KR910010456A - Video signal switching circuit - Google Patents

Video signal switching circuit Download PDF

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Publication number
KR910010456A
KR910010456A KR1019890016323A KR890016323A KR910010456A KR 910010456 A KR910010456 A KR 910010456A KR 1019890016323 A KR1019890016323 A KR 1019890016323A KR 890016323 A KR890016323 A KR 890016323A KR 910010456 A KR910010456 A KR 910010456A
Authority
KR
South Korea
Prior art keywords
video signal
transistors
resistors
switching circuit
signal switching
Prior art date
Application number
KR1019890016323A
Other languages
Korean (ko)
Other versions
KR920005314B1 (en
Inventor
오일규
권혁철
Original Assignee
김광호
삼성전자 주식회사
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 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019890016323A priority Critical patent/KR920005314B1/en
Publication of KR910010456A publication Critical patent/KR910010456A/en
Application granted granted Critical
Publication of KR920005314B1 publication Critical patent/KR920005314B1/en

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/12—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules

Abstract

내용 없음.No content.

Description

비디오신호 스위칭회로Video signal switching circuit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명 비디오신호 스위칭회로의 블록구성도.1 is a block diagram of a video signal switching circuit of the present invention.

제2도는 본 발명 비디오신호 스위칭회로의 상세회로도.2 is a detailed circuit diagram of a video signal switching circuit of the present invention.

제3도는 제2도에 도시한 비디오신호 스위칭회로의 각부 신호파형도이다.FIG. 3 is a signal waveform diagram of each part of the video signal switching circuit shown in FIG.

* 도면의 주요 부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings

1 : 바이어스회로부 2 : 제1입력회로부1: bias circuit part 2: first input circuit part

3 : 제2입력회로부 4 : 제어회로부3: second input circuit section 4: control circuit section

5 : 버퍼/출력부 Q1~Q23: 트랜지스터5: Buffer / Output Q 1 ~ Q 23 : Transistor

D1: 다이오드D 1 : Diode

Claims (1)

저항(R1~R7)과 트랜지스터(Q1~Q5)로 구성되어 각 회로부의 기준전위를 설정하는 바이어스회로부(1)와, 저항(R8~R13)과 트랜지스터(Q6~Q10)로 구성되어 튜너를 통해 입력되는 비디오신호(A)를 입/출력하는 제1입력회로부(2), 저항(R14~R19)과 트랜지스터(Q11~Q15)로 구성되어 비디오잭을 통해 입력되는 라인신호(B)를 입/출력하는 제2입력회로부(3), 트랜지스터(Q16~Q19)로 구성되어 상기 제1, 제2입력회로부(2,3)의 동작을 제어하는 제어회로부(4) 및 저항(R20~R23)과 다이오드(D1) 및 트랜지스터(Q20~Q26)로 구성되어 입력신호를 안정하게 출력하는 버퍼/출력부(5)를 구비하여서 된 비디오신호 스위칭회로.A bias circuit section 1 composed of resistors R 1 to R 7 and transistors Q 1 to Q 5 to set the reference potential of each circuit section, resistors R 8 to R 13 , and transistors Q 6 to Q 10 ) is composed of a first input circuit section (2) for inputting / outputting a video signal (A) input through the tuner, resistors (R 14 ~ R 19 ) and transistors (Q 11 ~ Q 15 ) The second input circuit part 3 and the transistors Q 16 to Q 19 for inputting / outputting the line signal B inputted through the control part control the operation of the first and second input circuit parts 2 and 3. And a buffer / output section 5 composed of a control circuit section 4 and resistors R 20 to R 23 , diodes D 1 and transistors Q 20 to Q 26 to stably output an input signal. Video signal switching circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890016323A 1989-11-10 1989-11-10 Video signal switching circuit KR920005314B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890016323A KR920005314B1 (en) 1989-11-10 1989-11-10 Video signal switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890016323A KR920005314B1 (en) 1989-11-10 1989-11-10 Video signal switching circuit

Publications (2)

Publication Number Publication Date
KR910010456A true KR910010456A (en) 1991-06-29
KR920005314B1 KR920005314B1 (en) 1992-07-02

Family

ID=19291520

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890016323A KR920005314B1 (en) 1989-11-10 1989-11-10 Video signal switching circuit

Country Status (1)

Country Link
KR (1) KR920005314B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100332621B1 (en) * 1999-03-19 2002-04-17 곽정소 Mix and switching circuit of video signal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100332621B1 (en) * 1999-03-19 2002-04-17 곽정소 Mix and switching circuit of video signal

Also Published As

Publication number Publication date
KR920005314B1 (en) 1992-07-02

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