KR890006065A - Interface circuit for on-screen of CRT - Google Patents

Interface circuit for on-screen of CRT Download PDF

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Publication number
KR890006065A
KR890006065A KR870010391A KR870010391A KR890006065A KR 890006065 A KR890006065 A KR 890006065A KR 870010391 A KR870010391 A KR 870010391A KR 870010391 A KR870010391 A KR 870010391A KR 890006065 A KR890006065 A KR 890006065A
Authority
KR
South Korea
Prior art keywords
switching
applying
signal
crt
interface circuit
Prior art date
Application number
KR870010391A
Other languages
Korean (ko)
Other versions
KR950012042B1 (en
Inventor
민병민
Original Assignee
안시환
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 안시환, 삼성전자 주식회사 filed Critical 안시환
Priority to KR1019870010391A priority Critical patent/KR950012042B1/en
Publication of KR890006065A publication Critical patent/KR890006065A/en
Application granted granted Critical
Publication of KR950012042B1 publication Critical patent/KR950012042B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information

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

Abstract

내용 없음No content

Description

CRT의 온-스크린을 위한 인터페이스 회로Interface circuit for on-screen of CRT

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

제2도는 본 발명의 CRT 온-스크린을 위한 인터페이스회로이다.2 is an interface circuit for the CRT on-screen of the present invention.

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

10-13 : 클램프회로 31-33 : 증폭회로10-13: Clamp Circuit 31-33: Amplification Circuit

51-54 : 스위치 60 : 스위칭펄스 발생기51-54: switch 60: switching pulse generator

Claims (1)

페데스텔 클램프회로(10)의 기준신호를 인가하고, 텔리텍스트신호(Rt, Gt , Bt)를 각각 인가하는 클램프회로(11-13)와, 이 클램프회로(11-13)와 각각 연결된 증폭회로(31-33)와, 증폭회로(31-33)의 출력을 각각 인가하고 텔레비젼 색차신호(R-Y, G-Y, B-Y)를 각각 인가하는 전환스위치(51-53)와, 휘도신호(Y)를 인가하는 전환스위치를 구비하는 CRT의 인터페이스회로에 있어서, 스위칭펄스(SP)와 블랭킹신호(BS)를 인가하는 스위칭펄스발생기(60)의 스위칭신호가 상기의 전환스위치(51-54)를 전환하게 연결하여, 스위칭펄스의 신호 레벨에 따라 텔리텍스트 모드 또는 텔레비젼 모드가 전환되게함을 특징으로 하는 CRT의 온-스크린을 위한 인터페이스회로.A clamp circuit 11-13 for applying the reference signal of the pedestal clamp circuit 10 and for applying the teletext signals Rt, Gt, and Bt, respectively, and an amplifying circuit connected to the clamp circuit 11-13, respectively. 31-33 and the switching switches 51-53 for applying the outputs of the amplifying circuits 31-33 and the television color difference signals RY, GY, BY, respectively, and the luminance signal Y. In the interface circuit of the CRT having a changeover switch, the switching signal of the switching pulse generator 60 for applying the switching pulse SP and the blanking signal BS is connected to switch the changeover switches 51-54. Thereby switching the teletext mode or the television mode in accordance with the signal level of the switching pulses. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019870010391A 1987-09-19 1987-09-19 Interface circuit for on screen display in crt KR950012042B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019870010391A KR950012042B1 (en) 1987-09-19 1987-09-19 Interface circuit for on screen display in crt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019870010391A KR950012042B1 (en) 1987-09-19 1987-09-19 Interface circuit for on screen display in crt

Publications (2)

Publication Number Publication Date
KR890006065A true KR890006065A (en) 1989-05-18
KR950012042B1 KR950012042B1 (en) 1995-10-13

Family

ID=19264576

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870010391A KR950012042B1 (en) 1987-09-19 1987-09-19 Interface circuit for on screen display in crt

Country Status (1)

Country Link
KR (1) KR950012042B1 (en)

Also Published As

Publication number Publication date
KR950012042B1 (en) 1995-10-13

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