KR970076692A - Vishal's dual screen processor - Google Patents

Vishal's dual screen processor Download PDF

Info

Publication number
KR970076692A
KR970076692A KR1019960015415A KR19960015415A KR970076692A KR 970076692 A KR970076692 A KR 970076692A KR 1019960015415 A KR1019960015415 A KR 1019960015415A KR 19960015415 A KR19960015415 A KR 19960015415A KR 970076692 A KR970076692 A KR 970076692A
Authority
KR
South Korea
Prior art keywords
signal
color
video signal
color video
screen
Prior art date
Application number
KR1019960015415A
Other languages
Korean (ko)
Other versions
KR100202572B1 (en
Inventor
조진호
Original Assignee
구자홍
Lg 전자주식회사
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 구자홍, Lg 전자주식회사 filed Critical 구자홍
Priority to KR1019960015415A priority Critical patent/KR100202572B1/en
Publication of KR970076692A publication Critical patent/KR970076692A/en
Application granted granted Critical
Publication of KR100202572B1 publication Critical patent/KR100202572B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • 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

Landscapes

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

Abstract

본 발명은 브이씨알의 이중화면 처리장치에 관한 것으로, 종래에는 브이씨알 서보에서 수직동기를 맞추어 놓았기 때문에 필드메모리가 필요 없지만 두 칼라영상신호(CVBS)의 카라위상 즉, fsc의 위상이 틀어져 있기 때문에 칼라영상신호상에서 처리를 할 수 없는 문제점이 있다. 따라서 본 발명은 브이씨알에서 재생되는 칼라신호의 위상을 튜너에서 오는 신호의 수직동기와 칼라신호의 칼라위상에 동기시켜 이중화면 처리시 휘도신호와 칼라신호만으로 처리가 가능하도록 함으로써 회로구현시 전체적으로 간단해지고, 각 부의 구성요소가 줄어 가격이 낮아지도록 한다.The present invention relates to a dual screen image processing apparatus for a VCSEL. In the prior art, a field memory is not necessary because vertical synchronization is set in a VCSEL servo, but the color phase of the two color image signals (CVBS) Therefore, there is a problem in that it can not be processed on a color video signal. Accordingly, in the present invention, the phase of the color signal reproduced from the VSS is synchronized with the vertical synchronization of the signal coming from the tuner and the color phase of the color signal, so that it is possible to process only the luminance signal and the color signal in the dual screen processing. So that the components of each department are reduced and prices are lowered.

Description

브이씨알의 이중화면 처리장치Vishal's dual screen processor

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제4도는 본 발명 브이씨알의 이중화면 처리장치 회로구성도.FIG. 4 is a circuit diagram of a dual screen processing device circuit of the V-shaped semiconductor device according to the present invention.

Claims (7)

튜터로부터 동조되어 입력되는 고주파의 방송신호를 중간주파수의 제1칼라영상신호(CVBS1)로 변환 및 증폭하여 출력하는 중간주파처리수단과; 상기 중간주파처리수단에서 출력되는 제1칼라영상신호로부터 수직 동기신호를 분리하고 그 분리한 신호를 분주하여 출력하는 동기분리 및 분주수단과; 상기 동기분리 및 분주사단에서 출력되는 수직동기신호를 이에 동기되는 비디오 테이프로 출력시 상기 수직동기신호에 위상이 동기된 영상신호를 읽어내어 출력하는 재생수단과; 상기 중간주파수처리수단에서 출력되는 제1칼영상신호로부터 부반송파 주파수fsc을 재생하고 이 재생된 주파수fsc를 이용하여 브이씨알에서 재생된 영상신호의 칼라위상을 상기 제1칼라영상신호의 칼라위상과 동기시킨 제2칼라영상신호(CVBS2)를 출력하는 칼라위상 동기수단과; 수직동기와 부반송파 주파수fsc신호의 위상이 동기된 상기 중간주파처리수단의 제1칼라영상신호와 칼라위상 동기수단에서 출력되는 제2칼라영상신호를 입력으로 하여 원하는 화면의 종횡비에 맞게 조헐하고 이를 합성하여 2화면을 발생하는 이중화면 발생수단으로 구성함을 특징으로 하는 브이씨알의 이중화면 처리장치.An intermediate frequency processing means for converting a high frequency broadcast signal, which is tuned and inputted from the tutor, into a first color video signal (CVBS1) of an intermediate frequency, amplifying and outputting the first color video signal (CVBS1); A synchronization separating and dividing means for separating a vertical synchronizing signal from the first color video signal outputted from the intermediate frequency processing means and dividing and outputting the separated signal; A reproducing means for reading out and outputting a video signal whose phase is synchronized with the vertical synchronizing signal when the vertical synchronizing signal outputted from the synchronizing separating and dividing division is output to a video tape synchronous with the vertical synchronizing signal; The subcarrier frequency fsc is reproduced from the first cut video signal outputted from the intermediate frequency processing means and the color phase of the video signal reproduced from the Vss using the reproduced frequency fsc is synchronized with the color phase of the first color video signal A color phase synchronization means for outputting a second color video signal CVBS2; The first color video signal of the intermediate frequency processing means and the second color video signal outputted from the color phase synchronization means synchronized with the phase of the vertical synchronizing signal and the subcarrier frequency fsc signal are input and adjusted according to the aspect ratio of a desired screen, And a dual screen generating means for generating a dual screen by generating a dual screen. 제1항에 있어서, 칼라위상 동기수단은 중간주파처리수단에서 출력되는 제1칼라영상신호로부터 부반송파 주파수fsc를 재생하는 부반송파 주사수 재생수단과, 이부반송파 주파수 재생수단에서 재생된 부반송파 주파수fsc를 이용하여 브이씨알 테이프에서 읽어들인 칼라신호의 칼라위상을 상기 제1칼라영상신호의 칼라위상과 동기시키고 그 동기시킨 제2칼라영상신호를 출력하는 브이씨을 재생수단으로 구성함을 특징으로 하는 브이씨알의 이중화면 처리장치.The apparatus according to claim 1, characterized in that the color phase synchronization means comprises subcarrier scan number reproduction means for reproducing the subcarrier frequency fsc from the first color video signal outputted from the intermediate frequency processing means, and subcarrier scan number reproduction means for using the subcarrier frequency fsc reproduced by the subcarrier frequency reproduction means And a reproducing means for reproducing the second color video signal synchronized with the color phase of the first color video signal and synchronizing the color phase of the color signal read from the VTS tape, Dual screen processing device. 제1항에 있어서, 이중화면 처리수단은 튜너를 통해 입력되는 제1칼라영상신호에 대해 아날로그/디지탈변환 및 신호분리한 후 ½로 압축하여 처리한 압축된 제1칼라영상신호를 출력하는 제1화면 압축수단과; 브이씨알에서 재생된 제2칼라영상신호에 대해 신호분리한 후 ½로 압축처리하고 상기 제1칼라영상신호와 수평동기를 맞춘 압축된 제2칼라영상신호를 출력하는 제2화면 압축수단과; 상기 제1칼라영상신호와 제2칼라영상신호를 입력받아 수평동기를 분리하고 이 분리된 수평동기에 따른 스위치 콘트롤 펄스 및 수평동기 콘트롤펄스 신호를 발생하는 제어신호 발생수단과; 상기 제어신호 발생수단으로부터 발생하는 제어신호에 따라 압축된 제1칼라영상신호 또는 압축된 제2칼라영상신호를 선택한 후 아날로그신호로 변환시켜 이중화면이 나타나도록 출력을 조절하는 화면 조절수단으로 구성함을 특징으로 하는 브이씨알의 이중화면 처리장치.2. The image processing apparatus according to claim 1, wherein the dual screen processing means comprises a first image processing means for outputting a compressed first color video signal subjected to analog / digital conversion and signal separation with respect to a first color video signal inputted through a tuner, Screen compression means; A second screen compression means for compressing the signal of the second color video signal reproduced from the V-shaped signal and then outputting a compressed second color video signal having a horizontal synchronization with the first color video signal; A control signal generating means for receiving the first color video signal and the second color video signal and separating the horizontal sync signal and generating a switch control pulse and a horizontal sync control pulse signal according to the separated horizontal sync; And a screen adjusting means for adjusting the output so that a double screen is displayed by converting the compressed first color video signal or the compressed second color video signal into an analog signal in accordance with a control signal generated from the control signal generating means The dual-screen processing unit of the Vishal. 제1항에 있어서, 제1화면 압축수단은 튜너를 통해입력되는 제1칼라 영상신호를 디지탈 신호로 변환하는 아날로그/디지탈 변환수단과; 상기 변환수단으로부터 입력된 신호로부터 휘도신호와 칼라신호를 분리하는 휘도/칼라신호 분리수단과; 상기 휘도/칼라신호 분리수단으로부터 출력된 휘도신호를 입력받아 시간축에서 ½로 압축하는 제1압축수단과; 상기 휘도/칼라신호 분리수단으로 출력된 칼라신호를 입력받아 시간축에서 ½로 압축하는 제2압축수단과; 상기 제2압축수단을 통해 압축된 칼라신호의 시프트된 칼라위상을 보상해주기 위하여 부반송파 주파수fsc를 곱하여주는 믹서와; 상기 믹서를 통해 출력되는 칼라신호로부터 불필요한 성분을 제거하고 그 제거된 칼라신호를 출력하는 밴드패스필터와; 상기 밴드패스필터까지 통과하면서 칼라신호가 지연된 만큼 휘도신호를 지연시켜 출력하는 지연수단과; 상기 지연수단을 통한 휘도신호와 밴드패스필터를 통해 출력되는 칼라신호를 더하여 생성된 칼라영상신호를 출력하는 가산기로 구성함을 특징으로 하는 브이씨알의 이중화면 처리장치.The apparatus of claim 1, wherein the first screen compression means comprises: analog / digital conversion means for converting the first color video signal input through the tuner into a digital signal; A luminance / color signal separating means for separating a luminance signal and a color signal from a signal inputted from the converting means; First compression means for receiving the luminance signal output from the luminance / color signal separation means and compressing the luminance signal in half on the time axis; Second compression means for receiving the color signal output from the luminance / color signal separation means and compressing the color signal in half on the time axis; A mixer for multiplying the subcarrier frequency fsc to compensate for the shifted color phase of the color signal compressed through the second compression means; A band pass filter for removing unnecessary components from the color signal output through the mixer and outputting the removed color signal; Delay means for delaying the luminance signal as much as the color signal is delayed and passing through the band-pass filter; And an adder for outputting a color video signal generated by adding a luminance signal through the delay unit and a color signal output through a band pass filter. 제3항에 있어서, 제2화면 압축수단은 제1화면 압축수단과 동일한 구성에 제1칼라영상신호의 수평동기와 제2칼라영상신호의 수평동기의 위상을 맞추기 위한 수평동기 정합수단을 더 포함하여 구성함을 특징으로 하는 브이씨알의 이중화면 처리장치.The image processing apparatus according to claim 3, wherein the second screen compression means further comprises a horizontal synchronizing means for synchronizing the horizontal synchronism of the first color video signal and the horizontal synchronism of the second color video signal, Wherein the V-SEAL's dual-screen processing unit comprises: 제3항에 있어서, 제어신호 발생수단은 입력되는 제1칼라영상신호로부터 수평동기와 콘트롤펄스를 분리하여 발생하는 수평동기분리 및 펄스발생수단과; 입력되는 제2칼라영상신호로부터 수평동기를 분리하여 출력하는 수평동기 분리수단과; 상기 수평동기분리 및 펄스발생수단 및 수평동기 분리 수단에서 발생하는 수평동기를 입력받아 수평동기 콘트롤펄스 신호를 만들어 출력하는 신호 발생수단으로 구성함을 특징으로 하는 브이씨알의 이중화면 처리장치.The apparatus of claim 3, wherein the control signal generating means comprises: horizontal sync separation and pulse generating means for generating a horizontal sync and a control pulse from the input first color video signal; Horizontal sync separation means for separating and outputting horizontal sync from an input second color video signal; And a signal generating means for generating and outputting a horizontal synchronization control pulse signal by receiving the horizontal synchronization generated by the horizontal synchronization separation and pulse generating means and the horizontal synchronization separation means. 제3항에 있어서, 화면조절수단은 입력되는 수위치 콘트롤펄스신호에 따라 압축된 제1칼라영상신호 또는 제2칼라영상신호를 선택하는 스위칭수단과; 상기 스위칭수단을 통해 전송된 디지탈 신호를 아날로그신호로 변환한 신호를 출력하는 디지탈/아날로그 변환수단으로 이루어짐을 특징으로 하는 브이씨알의 이중화면 처리장치.The apparatus of claim 3, wherein the screen adjusting means comprises: switching means for selecting the first color video signal or the second color video signal that is compressed according to the input number control pulse signal; And a digital / analog converting means for converting a digital signal transmitted through the switching means into an analog signal. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960015415A 1996-05-10 1996-05-10 Dual picture processor for a vcr KR100202572B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960015415A KR100202572B1 (en) 1996-05-10 1996-05-10 Dual picture processor for a vcr

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960015415A KR100202572B1 (en) 1996-05-10 1996-05-10 Dual picture processor for a vcr

Publications (2)

Publication Number Publication Date
KR970076692A true KR970076692A (en) 1997-12-12
KR100202572B1 KR100202572B1 (en) 1999-06-15

Family

ID=19458286

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960015415A KR100202572B1 (en) 1996-05-10 1996-05-10 Dual picture processor for a vcr

Country Status (1)

Country Link
KR (1) KR100202572B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100498410B1 (en) * 1997-08-26 2005-09-02 삼성전자주식회사 Automatic correction device and method for delay characteristics during recording / playback of video signal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100498410B1 (en) * 1997-08-26 2005-09-02 삼성전자주식회사 Automatic correction device and method for delay characteristics during recording / playback of video signal

Also Published As

Publication number Publication date
KR100202572B1 (en) 1999-06-15

Similar Documents

Publication Publication Date Title
EP0660601B1 (en) Video processing circuit for a simultaneous display of two pictures
KR890006090A (en) Digital video signal processing circuit
US5982453A (en) Reduction of visibility of spurious signals in video
JPH04293384A (en) Image display device
KR970076692A (en) Vishal's dual screen processor
KR920008154B1 (en) Television receiver
KR970067292A (en) Vishal's dual screen processor
JPS62128288A (en) Movement detecting circuit for high definition television system
KR950006455B1 (en) Image signal converting circuit
KR940008803B1 (en) Ntsc/pal converting circuit
JP2525431B2 (en) RGB multi-terminal input type progressive scan conversion television receiver
KR0147152B1 (en) Multi-picture division and still picture embodiment method by using the memory address
JP3070505B2 (en) Video signal processing device and television receiver
JP2869087B2 (en) Digital audio processing unit
JP2638948B2 (en) Motion detection circuit
KR940004178Y1 (en) Tv receiving system
KR100233389B1 (en) Pip apparatus in composit television receiver
KR0183744B1 (en) High speed copy monitoring apparatus
KR100202564B1 (en) The color level adjusting apparatus
KR0183161B1 (en) Circuit for converting video signal of ntsc to that of pal
JPH06315153A (en) Signal processor
JPH01129587A (en) Time base correcting device for composite video signal
JPH0413375A (en) Synchronizing separator circuit
JPS5819186B2 (en) color television receiver
JPH0746625A (en) Generation circuit for video signal for small screen

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20010926

Year of fee payment: 4

LAPS Lapse due to unpaid annual fee