KR960042655A - Reference Frequency Switching Circuit of Multi Video Cassette Recorder - Google Patents

Reference Frequency Switching Circuit of Multi Video Cassette Recorder Download PDF

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Publication number
KR960042655A
KR960042655A KR1019950011170A KR19950011170A KR960042655A KR 960042655 A KR960042655 A KR 960042655A KR 1019950011170 A KR1019950011170 A KR 1019950011170A KR 19950011170 A KR19950011170 A KR 19950011170A KR 960042655 A KR960042655 A KR 960042655A
Authority
KR
South Korea
Prior art keywords
reference frequency
osd
servo
signal
switching
Prior art date
Application number
KR1019950011170A
Other languages
Korean (ko)
Inventor
홍기돈
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 KR1019950011170A priority Critical patent/KR960042655A/en
Priority to CN96110003A priority patent/CN1077309C/en
Priority to GB9609556A priority patent/GB2300778B/en
Publication of KR960042655A publication Critical patent/KR960042655A/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/7921—Processing of colour television signals in connection with recording for more than one processing mode
    • H04N9/7925—Processing of colour television signals in connection with recording for more than one processing mode for more than one standard
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/02—Analogue recording or reproducing
    • 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)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Television Signal Processing For Recording (AREA)
  • Synchronizing For Television (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

본 발명은 완전 컬러 처리가 가능한 멀티형 비디오 카세트 레코더에서 온-스크린 디스플레이어와 서보회로를 구동하는 기준주파수 공급회로에 관한 것인바, 이것은 완전 컬러 처리 시스템을 가진 멀티형 VCR에서 입력신호 및 재생신호의 영상신호 시스템에 맞는 적절한 기준주파수를 절환함으로써 휘도신호와 컬러신호에 상응한 기준주파수로 스위칭하여 OSD 처리부와 서보회로부에 공급할 수 있도록 한 기준주파수 스위칭회로에 관한 것으로서, 제1발진수단과 제2발진수단을 구비하여 두개의 기준주파수(fsc;3.58MHz/4.43MHz)를 공급하는 영상신호 처리수단과, 상기 영상신호 처리수단의 두 기준주파수 출력신호를 스위칭하여 상기 OSD 처리수단과 서보구동수단으로 각각 공급하는 OSD/서보 기준주파수 스위칭수단과, 상기 OSD 처리수단의 수직 동기신호와 상기 서보구동수단의 C/D 제어필스를 선택하여 영상신호의 시스템을 판별하고 그 판별신호로 상기 OSD/서보기준주파수 스위칭수단의 스위칭동작을 제어하여 영상신호 시스템에 적합한 기준주파수를 취하는 시스템 판별 제어수단으로 구성함에 있다.The present invention relates to a reference frequency supply circuit for driving an on-screen display and a servo circuit in a multi-type video cassette recorder capable of full color processing, which is an image signal of an input signal and a reproduction signal in a multi-type VCR having a full color processing system. The present invention relates to a reference frequency switching circuit for switching to a reference frequency corresponding to a luminance signal and a color signal by supplying an appropriate reference frequency suitable for a system so as to be supplied to an OSD processing section and a servo circuit section. A video signal processing means for supplying two reference frequencies (fsc; 3.58MHz / 4.43MHz), and switching the two reference frequency output signals of the video signal processing means to the OSD processing means and the servo driving means, respectively. OSD / servo reference frequency switching means, vertical synchronization signal of the OSD processing means The system discrimination control means which selects the C / D control field of the servo drive means and determines the system of the video signal and controls the switching operation of the OSD / servo quasi-frequency switching means with the discrimination signal to take a reference frequency suitable for the video signal system. In the configuration.

Description

멀티형 비디오 카세트 레코더의 기준주파수 스위칭회로Reference Frequency Switching Circuit of Multi Video Cassette Recorder

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

제2도는 본 발명에 의한 기준주파수 스위칭회로의 블럭도, 제3도는 본 발명에 의한 기준주파수 스위칭회로의 동작을 설명하기 위한 참고표로서 (가)는 종래의 영상 시스템에 따른 기준주파수 공급회로에서의 동작 조건표, (나)는 본 발명에 의한 영상 시스템에 따른 기준주파수 공급회로에서의 동작 조건표.2 is a block diagram of a reference frequency switching circuit according to the present invention, and FIG. 3 is a reference table for explaining the operation of the reference frequency switching circuit according to the present invention. (B) is a table of operating conditions in the reference frequency supply circuit according to the imaging system according to the present invention.

Claims (2)

자체 발진없이 외부 기준주파수로 구동하는 OSD 처리수단과 서보구동수단을 구비한 완전 컬러 처리 및 블루 스크린 기능을 갖는 멀티형 VCR에 있어서, 제1발진수단과 제2발진수단을 구비하여 두개의 기준주파수(fsc;3.58MHz/4.43MHz)를 공급하는 영상신호 처리수단과, 상기 영상신호 처리수단의 두 기준주파수 출력신호를 스위칭하여 상기 OSD 처리수단과 서보구동수단으로 각각 공급하는 OSD/서보 기준주파수 스위칭수단과, 상기 OSD 처리수단의 수직 동기신호와 상기 서보구동수단의 C/D 제어펄스를 선택하여 영상신호의 시스템을 판별하고 그 판별신호로 상기 OSD/서보 기준주파수 스위칭수단의 스위칭동작을 제어하여 영상신호 시스템에 적합한 기준주파수를 취하는 시스템 판별 제어수단으로 구성함을 특징으로 하는 멀티형 비디오 카세트 레코더의 기준주파수 스위칭회로.In a multi-type VCR having full color processing and blue screen function having OSD processing means and a servo drive means for driving at an external reference frequency without self oscillation, a first oscillation means and a second oscillation means have two reference frequencies ( fsc; 3.58 MHz / 4.43 MHz) and an OSD / servo reference frequency switching means for switching the two reference frequency output signals of the video signal processing means to supply the OSD processing means and the servo drive means, respectively. And selecting the vertical synchronizing signal of the OSD processing means and the C / D control pulse of the servo driving means to determine the system of the image signal, and controlling the switching operation of the OSD / servo reference frequency switching means with the determination signal. Reference frequency of a multi-type video cassette recorder, characterized by comprising system discrimination control means taking a reference frequency suitable for a signal system Switching circuit. 제1항에 있어서, 상기OSD/서보 기준주파수 스위칭수단은 NTSC 4.43/NTSC PB ON PAL TV모드에서 OSD 처리부()를 제1기준주파수(fsc;4.43MHz)로 구동하여 PAL 스크린을 출력하도록 구성하는 것을 특징으로 하는 멀티형 비디오 카세트 레코더의 기준주파수 스위칭회로.The apparatus of claim 1, wherein the OSD / servo reference frequency switching unit is configured to drive the OSD processor (1) at a first reference frequency (fsc; 4.43 MHz) in an NTSC 4.43 / NTSC PB ON PAL TV mode to output a PAL screen. A reference frequency switching circuit of a multi-type video cassette recorder, characterized in that. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950011170A 1995-05-08 1995-05-08 Reference Frequency Switching Circuit of Multi Video Cassette Recorder KR960042655A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019950011170A KR960042655A (en) 1995-05-08 1995-05-08 Reference Frequency Switching Circuit of Multi Video Cassette Recorder
CN96110003A CN1077309C (en) 1995-05-08 1996-05-08 Multistandard video tape player for selectively generating clock signals corresponding to video standards
GB9609556A GB2300778B (en) 1995-05-08 1996-05-08 Multistandard video tape player for selectively generating clock signals corresponding to video standards

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950011170A KR960042655A (en) 1995-05-08 1995-05-08 Reference Frequency Switching Circuit of Multi Video Cassette Recorder

Publications (1)

Publication Number Publication Date
KR960042655A true KR960042655A (en) 1996-12-21

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ID=19413885

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Application Number Title Priority Date Filing Date
KR1019950011170A KR960042655A (en) 1995-05-08 1995-05-08 Reference Frequency Switching Circuit of Multi Video Cassette Recorder

Country Status (3)

Country Link
KR (1) KR960042655A (en)
CN (1) CN1077309C (en)
GB (1) GB2300778B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006246185A (en) 2005-03-04 2006-09-14 Sharp Corp Radio video transmission system
DE102013211710C5 (en) * 2013-06-20 2016-11-10 Siemens Aktiengesellschaft Wind turbine with a plain bearing

Also Published As

Publication number Publication date
GB9609556D0 (en) 1996-07-10
GB2300778A (en) 1996-11-13
GB2300778B (en) 1997-05-14
CN1147667A (en) 1997-04-16
CN1077309C (en) 2002-01-02

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E601 Decision to refuse application