KR0162351B1 - Interface circuit for pal plus tv set and v.c.r - Google Patents

Interface circuit for pal plus tv set and v.c.r Download PDF

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Publication number
KR0162351B1
KR0162351B1 KR1019950013462A KR19950013462A KR0162351B1 KR 0162351 B1 KR0162351 B1 KR 0162351B1 KR 1019950013462 A KR1019950013462 A KR 1019950013462A KR 19950013462 A KR19950013462 A KR 19950013462A KR 0162351 B1 KR0162351 B1 KR 0162351B1
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South Korea
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signal
color
video signal
luminance
signals
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KR1019950013462A
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Korean (ko)
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KR960043856A (en
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조진호
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구자홍
엘지전자주식회사
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H04N5/775—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television receiver
    • H04N5/7755—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television receiver the recorder being connected to, or coupled with, the antenna of the television receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/06—Transmission systems characterised by the manner in which the individual colour picture signal components are combined
    • H04N11/12—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only
    • H04N11/14—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system
    • H04N11/16—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system the chrominance signal alternating in phase, e.g. PAL-system
    • H04N11/167—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system the chrominance signal alternating in phase, e.g. PAL-system a resolution-increasing signal being multiplexed to the PAL-system signal, e.g. PAL-PLUS-system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/007—Systems with supplementary picture signal insertion during a portion of the active part of a television signal, e.g. during top and bottom lines in a HDTV letter-box system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0135—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving interpolation processes
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/036—Radio; TV

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

Abstract

본 발명은 팔플러스(PAL+) 텔레비젼 수상기와 일반적인 브이씨알간의 인터페이스 기술에 관한 것으로, 일반적인 인터페이스회로에 있어서는 소정의 주파수상에 분포되어 있는 헬퍼신호를 디코딩할 수 없어 팔플러스 디코딩된 16:9 화면 비율의 휘도신호/색신호 및 복합영상신호를 브이씨알에 공급할 수 없게 되고, 이로 인하여 일반 브이씨알에서 고화질의 16:9 영상을 녹화할 수 없게 되는 결함이 있었는 바, 본 발명은 이를 해결하기 위하여, 팔플러스 텔레비젼 수상기에서 팔플러스신호를 디코딩하여 16:9 화면용 휘도신호 및 색신호, 복합영상신호를 생성하고, 와이드 스크린시호의 검출여부에 따라 16:9 화면용 영상신호나 4:3 화면용 영상신호를 선택하여 브이씨알측으로 출력하도록 하였다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interface technology between a PAL + television receiver and a general VLC. In a general interface circuit, a helper signal distributed over a predetermined frequency cannot be decoded. Since the luminance signal / color signal and the composite video signal of the ratio cannot be supplied to the VRs, there is a defect that the high-quality 16: 9 video cannot be recorded in the general VRs. Decodes the Palm Plus signal from the Palm Plus television set to produce a luminance signal, a color signal, and a composite video signal for a 16: 9 screen, depending on whether a widescreen signal is detected. The signal was selected and output to the VRC side.

Description

팔플러스 텔레비젼 수상기와 브이씨알의 인터페이스 회로Interface circuit between PalPlus TV receiver and VRC

제1도는 팔플러스 텔레비젼 수상기와 브이씨알의 일반적인 인터페이스 회로에 대한 블록도.1 is a block diagram of the general interface circuit of a PalPlus television receiver and VRC.

제2도는 색부반송파로 복조된 헬퍼신호의 스펙트럼.2 is a spectrum of a helper signal demodulated with a color carrier.

제3도는 화면의 메인영상신호와 헬퍼신호의 수직주파수 스펙트럼.3 is a vertical frequency spectrum of the main video signal and the helper signal of the screen.

제4도는 본 발명 팔플러스 텔레비젼 수상기와 브이씨알의 인터페이스 회로에 대한 블록도.4 is a block diagram of an interface circuit of the present invention PalPlus television receiver and V-Cal.

제5도는 본 발명에 의해 처리된 팔플러스 신호의 디스플레이 예시도.5 shows an example of display of a FalPlus signal processed by the present invention.

제6도는 본 발명에 의해 브이씨알측으로 공급되는 영상신호의 디스플레이 예시도.6 is an exemplary view of display of a video signal supplied to a VRC side according to the present invention.

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

11 : 튜너 12 : 중간주파처리부11: tuner 12: intermediate frequency processing unit

13 : Y/C분리기 14 : 컬러복조기13: Y / C Separator 14: Color Demodulator

15 : 색부반송파 재생부 16 : 432/576보간기15: color unit carrier reproduction unit 16: 432/576 interpolator

17 : 헬퍼복조기 18 : 인버스래터박스필터17: helper demodulator 18: inverse rotor box filter

19 : 매트릭스 20 : 비디오증폭기19: matrix 20: video amplifier

21 : 와이드스크린신호 디코더 22 : 팔엔코더21: wide screen signal decoder 22: arm encoder

23-25 : 스위치 26 : Y/C잭23-25: switch 26: Y / C jack

27 : 복합영상신호 잭27: composite video signal jack

본 발명은 팔플러스(PAL+) 텔레비젼 수상기와 일반적인 브이씨알간의 인터페이스 기술에 관한 것으로, 특히 고화질의 PAL+신호를 일반 브이씨알에 녹화하는데 적당하도록한 팔플러스 텔레비젼 수상기와 브이씨알의 인터페이스 회로에 관한 것이다.TECHNICAL FIELD The present invention relates to an interface technology between a PAL + television receiver and a general VR, and more particularly, to an interface circuit of a PALPLUS television receiver and a VRL suitable for recording a high quality PAL + signal to a general VR. will be.

제1도는 팔(PAL)플러스 텔레비젼 수상기와 브이씨알의 일반적인 인터페이스회로에 대한 블록도로서 이에 도시된 바와 같이, 안테나(ANT)를 통해 PAL+방송신호를 수신하여 원하는 채널의 복합영상신호(CVBS)를 검출하는 튜너(1) 및 중간 주파처리부(2)와, 상기 복합영상신호(CVBS)를 공급받아 휘도신호(Y)/색신호(C)를 분리하는 Y/C분리기(3)와, 상기 분리된 색신호(C)를 공급받아 U,V신호를 생성하기 위한 컬러복조기(4) 및 색부반송파 재생부(5)와, 상기 분리된 휘도신호(Y)와, U,V신호를 공급받아 적,녹,청색용 신호(R), (G), (B)를 생성하는 매트릭스(6)와, 상기 적,녹,청색용 신호(R), (G), (B)를 적정 수준으로 증폭하여 시피티(CPT)에 디스플레이하기 위한 비디오증폭기(7)와, 상기 U,V신호와 복합영상신호(CVBS)를 브이씨알측으로 공급하기 위한 Y/C잭(8) 및 복합영상신호 잭(9)으로 구성된 것으로, 이의 작용을 제2도 및 제3도를 참조하여 설명하면 다음과 같다.FIG. 1 is a block diagram of a general interface circuit of a PAL plus television receiver and V-Cal. As shown therein, a PAL + broadcast signal is received through an antenna ANT to receive a composite video signal (CVBS) of a desired channel. A tuner (1) and an intermediate frequency processor (2) for detecting a signal, a Y / C separator (3) for separating the luminance signal (Y) / color signal (C) by receiving the composite video signal (CVBS), and the separation The color demodulator 4 and the color carrier reproducing unit 5 for receiving the received color signal C and generating the U and V signals, and receiving the separated luminance signal Y and the U and V signals. The matrix 6 for generating the green, blue signals (R), (G), and (B) and the red, green, and blue signals (R), (G), and (B) are amplified to an appropriate level. A video amplifier 7 for displaying on a CPT, a Y / C jack 8 and a composite video signal jack 9 for supplying the U, V signal and the composite video signal CVBS to the VR side. Ugh It is composed of, the operation thereof will be described with reference to FIGS. 2 and 3 as follows.

안테나(ANT)를 통해 수신되는 PAL+방송신호가 튜너(1)에 공급되고, 사용자에 의해 선국된 채널의 방송신호가 중간주파처리부(2)를 통해 복합영상신호(CVBS)로 출력되며, 이는 다시 Y/C분리기(3)를 통해 휘도신호(Y)와 색신호(C)로 필터링된다.The PAL + broadcast signal received through the antenna ANT is supplied to the tuner 1, and the broadcast signal of the channel tuned by the user is output as the composite video signal CVBS through the intermediate frequency processor 2. The Y / C separator 3 filters the luminance signal Y and the color signal C again.

또한, 상기 분리된 휘도신호(Y)가 직접 매트릭스(6)에 공급되는 반면, 색신호(C)는 컬러복조기(4)와 색부반송파 (fsc) 재생부(5)에 공급되어 그 컬러복조기(4)에서 U,V로 분리된 신호가 그 매트릭스(6)에 공급된다.In addition, the separated luminance signal Y is directly supplied to the matrix 6, while the color signal C is supplied to the color demodulator 4 and the color part carrier fsc reproduction unit 5, and the color demodulator 4 The signal separated by U and V in the () is supplied to the matrix (6).

이에 따라 상기 매트릭스(6)에서는 적,녹,청색용 신호(R),(G),(B)가 출력되고, 이는 비디오증폭기(7)를 통해 적정 레벨로 증폭된 후 씨피티(CPT)에 디스플레이된다.Accordingly, the red, green, and blue signals (R), (G), and (B) are output from the matrix (6), which are amplified to an appropriate level through the video amplifier (7) and then transmitted to the CPT (CPT). Is displayed.

한편, 상기 Y/C분리기(3)에서 분리출력되는 휘도신호 (Y)와 색신호(C)는 Y/C잭(8)을 통해 브이씨알에 공급되고, 상기 중간주파 처리부(2)에서 출력되는 복합영상신호(CVBS)는 복합영상신호잭(9)을 통해 브이씨알에공급되어 해당 프로그램이 녹화된다.Meanwhile, the luminance signal Y and the color signal C separately output from the Y / C separator 3 are supplied to the VRC through the Y / C jack 8 and output from the intermediate frequency processor 2. The composite video signal CVBS is supplied to the VR through the composite video signal jack 9 to record the corresponding program.

그런데, 상기와 같은 처리과정을 통해 영상신호를 브이씨알에 공급하는 경우, 그 브이씨알에서는 녹화 또는 재생시 제2도에서와 같이, 소정의 주파수상에 분포되어 있는 헬퍼신호를 디코딩할 수 없어 수직고주파성분을 볼수 없게 된다.However, in the case of supplying the video signal to the VR through the above process, the VRL cannot decode the helper signal distributed on the predetermined frequency as shown in FIG. High frequency components are not visible.

즉, 제3도에서와 같이 432~576CPH성분을 손실하게 된다.That is, as shown in FIG. 3, 432 to 576 CPH components are lost.

이와 같이 일반적인 인터페이스회로에 있어서는 소정의 주파수상에 분포되어 있는 헬퍼신호를 디코딩할 수 없어 팔플러스 디코딩 된 16:9 화면 비율의 휘도 신호/색신호 및 복합영상신호를 브이씨알에 공급할 수 없게 되고, 이로 인하여 일반 브이씨알에서 고화질의 16:9 영상을 녹화할 수 없게 되는 결함이 있었다.As described above, the general interface circuit cannot decode helper signals distributed over a predetermined frequency, and thus cannot supply VLC with luminance signals / color signals and 16: 9 aspect ratio, which are Armplus decoded. Due to this, there was a defect that general high quality 16: 9 video could not be recorded in general VR.

따라서, 본 발명의 목적은 팔플러스 텔레비젼 수상기에서 16:9의 휘도신호/색신호 및 복합영상신호를 팔플러스 엔코딩하여 브이씨알측으로 공급하는 인터페이스 회로를 제공함에 있다.Accordingly, it is an object of the present invention to provide an interface circuit for supplying Armplus encoding a 16: 9 luminance signal / color signal and a composite video signal to a VRC side in a Palmplus television receiver.

제4도는 상기의 목적을 달성하기 위한 본 발명 팔플러스 텔레비젼 수상기와 브이씨알의 인테페이스 회로에 대한 블록도로서 이에 도시한 바와 같이, 안테나(ANT)를 통해 수신되는 방송신호를 튜닝하여 해당 채널의 복합영상신호(CVBS1)를 검출하고, 그 복합영상신호(CVBS1)를 휘도/색신호분리하여 휘도신호(Y1)와 색신호(C1)를 생성하며, 그 색신호(C1)로 부터 색부반송파(fsc) 및 U1,V1신호를 생성하는 입력영상신호 처리부(100A)와 상기 복합영상신호(CVBS1)로 부터 헬퍼신호를 복조한 후 그 헬퍼신호를 이용하여 상기 휘도신호(Y1)를 16:9 화면비 576라인의 휘도신호(Y2)로 변환하고, 상기 U1,Y1신호를 라인보간하여 U2,V2신호를 생성하는 팔영상신호 처리부(100B)와 상기 팔영상신호 처리부(100B)에서 휘도신호(Y2) 및 U2,V2신호를 공급받아 적,녹,청색용 신호(R),(G),(B)를 생성하고, 이를 증폭처리하여 씨피티(CPT)에 디스플레이하는 영상신호 출력부(100C)와, 상기 U2,V2 및 휘도신호(Y2)를 처리하여 복합영상신호(CVBS2) 와 색신호(C2)를 생성하고, 상기 복합영상신호(CVBS1)로 부터의 팔플러스신호(PAL+)의 검출여부에 따라 16:9화면용 영상신호(C2),(Y2)(CVBS2)를 선택하거나, 4:3화면용 영상신호(C1),(Y1),(CVBS1)를 선택하여 브이씨알측으로 전송하는 인터페이스부(100D)로 구성한 것으로, 이와 같이 구성한 본 발명의 작용 및 효과를 첨부한 제5도 및 제6도를 참조하여 상세히 설명하면 다음과 같다.FIG. 4 is a block diagram of an interface circuit of the present invention PalPlus television receiver and V-Cal for achieving the above object. As shown in FIG. 4, the broadcasting signal received through the antenna ANT is tuned to composite the corresponding channel. The video signal CVBS1 is detected, the composite video signal CVBS1 is separated from the luminance / color signal to generate the luminance signal Y1 and the color signal C1, and the color subcarriers fsc and U1 from the color signal C1. And demodulating a helper signal from the input image signal processing unit 100A generating the V1 signal and the composite video signal CVBS1, and using the helper signal, converts the luminance signal Y1 into a luminance of 16: 9 aspect ratio 576 lines. The luminance image signal Y2 and U2, V2 in the arm image signal processing unit 100B and the arm image signal processing unit 100B, which converts the signal to Y2 and generates the U2 and V2 signals by interpolating the U1 and Y1 signals. The signal is supplied to generate red, green, and blue signals (R), (G), and (B). Amplifying the video signal output unit 100C for displaying on the CPT and processing the U2, V2 and luminance signals Y2 to generate a composite video signal CVBS2 and a color signal C2; A 16: 9 picture signal C2 or Y2 (CVBS2) is selected according to whether the PAL + signal PAL + is detected from the composite picture signal CVBS1, or a 4: 3 picture signal It consists of an interface unit 100D which selects (C1), (Y1) and (CVBS1) and transmits it to the VRC side, with reference to FIGS. 5 and 6 attached to the operation and effect of the present invention configured as described above. It will be described in detail as follows.

안테나(ANT)를 통해 수신되는 PAL+방송신호가 튜너(11)에 공급되고, 이때, 사용자에 의해 선국된 채널의 방송신호가 중간주파처리부(12)에 공급되어 이로부터 에이엠-헬퍼신호(AM-Helper)가 포함된 복합영상신호(CVBS1)가 출력된다.The PAL + broadcast signal received through the antenna ANT is supplied to the tuner 11, and at this time, the broadcast signal of the channel tuned by the user is supplied to the intermediate frequency processing unit 12, from which the AM-helper signal AM is received. And a composite video signal CVBS1 including Helper).

상기 복합영상신호(CVBS1)가 한편으로는 헬퍼복조기(17)에 공급되어 그 헬퍼복조기(17)는 색부반송파 재생부(15)로 부터 입력되는 색부반송파(fsc)를 이용하여 복합영상신호(CVBS1)에 삽입된 헬퍼신호를 복조처리해서 이를 인버스(Inverse)래터박스필터(18)에 공급하게 되고, 상기 복합영상신호(CVBS1)가 다른 한편으로는 Y/C분리기(13)를 통해 휘도신호(Y1)와 색신호(C1)로 분리되어 그 분리된 휘도신호(Y1)가 상기 인버스래터박스필터(18)로 공급되고, 분리된 색신호(C1)는 컬러복조기(14)와 색부반송파 재생부(15)에 공급된다.The composite video signal CVBS1 is supplied to the helper demodulator 17 on the one hand, and the helper demodulator 17 uses the composite video signal CVBS1 inputted from the color carrier carrier fsc input from the color carrier carrier playback unit 15. Demodulating and processing the helper signal inserted into the inverse rotor box filter 18, and the composite image signal CVBS1 is on the other hand through the Y / C separator 13. Y1) and the color signal (C1) are separated and the separated luminance signal (Y1) is supplied to the inverse letterbox filter 18, the separated color signal (C1) is the color demodulator 14 and the color carrier carrier reproduction unit 15 Is supplied.

이에 따라 상기 인버스래터박스필터(18)는 제5도에서와 같이 432라인의 메인신호와 가로:세로의 화면비율이 4:3인 화면의 상,하측에 각기 디스플레이 될 144라인(72라인+72라인)의 헬퍼신호를 합하여 제6도에서와 같이 16:9화면에 적당하도록 576라인의 휘도신호(Y2)를 생성하게 되는데, 이때, 메인신호와 헬퍼신호의 주파수 분포는 제3도에서와 같다.Accordingly, as shown in FIG. 5, the inverse rotor box filter 18 has 144 lines (72 lines + 72 lines) to be displayed on the upper and lower sides of the screen having a 432 line main signal and a 4: 3 aspect ratio. The helper signal of the line) is added to generate a luminance signal Y2 of 576 lines to be suitable for a 16: 9 screen as shown in FIG. 6, where the frequency distribution of the main signal and the helper signal is as shown in FIG. .

또한 색부반송파 재생부(15)는 상기 색신호(C1)를 공급받아 색부반송파(fsc)를 재생하고, 컬러복조기(14)는 그 색부반송파(fsc)로 상기 색신호(C1)를 복조처리하여 U1,V1신호를 생성하게 되며, 이는 432/576보간기(16)를 통해 라인 보간되어 432라인에서 576라인으로 변환된 U2,V2신호가 출력되는데, 이 U2,V2신호는 제6도에 도시한 16:9화면의 576라인의 U,V신호에 해당된다.In addition, the color carrier reproducing unit 15 receives the color signal C1 to reproduce the color carrier fsc, and the color demodulator 14 demodulates the color signal C1 with the color carrier fsc to perform U1, The V1 signal is generated, and the U2 and V2 signals, which are line interpolated through the 432/576 interpolator 16 and converted from 432 lines to 576 lines, are output. The U2 and V2 signals are shown in FIG. This corresponds to the U and V signals of 576 lines of 9 screens.

상기의 처리과정을 통해 생성된 고화질의 16:9 비디오신호 즉, 휘도신호(Y2) 및 U2,V2신호는 매트릭스(19)에 공급되어 이로부터 적,녹,청색용 신호(R),(G),(B)가 출력되고, 이는 비디오증폭기(19)를 통해 적정 레벨로 증폭된 후 씨피티(CPT)에 디스플레이된다.The high quality 16: 9 video signal generated by the above process, that is, the luminance signal Y2 and the U2 and V2 signals are supplied to the matrix 19 and thus the red, green, and blue signals R, G ), (B) is output, which is amplified to an appropriate level through the video amplifier 19 and displayed on the CPT.

한편, 팔(PAL)엔코더(22)는 상기 색부반송파 재생부(15)로 부터 공급되는 색부반송파(fsc)를 이용하여 상기 432/576보간기(16)에서 라인보간된 576라인의 U2,V2 및 휘도신호(Y2)를 처리하여 복합영상신호(CVBS2)와 색신호(C2)를 생성한다.On the other hand, the PAL encoder 22 is U2, V2 of 576 lines line-interpolated by the 432/576 interpolator 16 using the color carrier fsc supplied from the color carrier reproducing unit 15. And a luminance signal Y2 to generate a composite video signal CVBS2 and a color signal C2.

결국, 4:3화면용 영상신호 즉, 상기 Y/C분리기(13)에서 출력되는 색신호(C1), 휘도신호(Y1),중간주파처리부(12)에서 출력되는 복합영상신호(CVBS1)가 스위치(23),(24),(25)의 일측 고정단자에 각기 공급되고, 16:9화면용 영상신호 즉, 팔엔코더(22)에서 출력되는 색신호(C2), 인버스래터박스필터(18)에서 출력되는 576라인의 휘도신호(Y2), 팔엔코더(22)에서 출력되는 복합영상신호(CVBS2)가 그 스위치 (23),(24),(25)의 타측 고정단자에 각기 공급된다.As a result, a 4: 3 screen image signal, that is, a color signal C1 outputted from the Y / C separator 13, a luminance signal Y1, and a composite video signal CVBS1 outputted from the intermediate frequency processor 12 are switched. (23), (24) and (25), respectively, supplied to one of the fixed terminals, the video signal for the 16: 9 screen, that is, the color signal (C2) output from the arm encoder 22, the inverse letter box filter (18) The luminance signal Y2 of 576 lines to be output and the composite video signal CVBS2 output from the arm encoder 22 are supplied to the other fixed terminals of the switches 23, 24 and 25, respectively.

이때, 와이드스크린신호(WSS) 디코더(21)는 상기 중간주파처리부(12)에서 출력되는 복합영상신호(CVBS1)를 디코딩하여 팔플러스신호(PAL+)가 검출되면 스위칭제어신호(SC)가 하이로 출력하게 되고, 이에 의해 상기 스위치(22),(23)에서는 타측고정단자에 각기 공급되고 있는 16:9화면용 영상신호 즉, 색신호(C2), 휘도신호(Y2)가 선택되어 Y/C잭(26)을 통해 S-VHS 브이씨알측으로 전달되고, 스위치(25)에서는 16:9화면용 복합영상신호(CVBS2)가 선택되어 S-VHS 브이씨알측으로 공급되므로 그 브이씨알에서는 16:9화면용 영상신호를 녹화할 수 있게 된다.At this time, the wide screen signal decoder 21 decodes the composite video signal CVBS1 output from the intermediate frequency processor 12, and when the arm plus signal PAL + is detected, the switching control signal SC becomes high. The switch 22, 23 selects a 16: 9 image signal, i.e., a color signal C2 and a luminance signal Y2, which are supplied to the other fixed terminals, respectively, to Y / C. It is transmitted to the S-VHS video signal through the jack 26, and the composite video signal (CVBS2) for the 16: 9 screen is selected and supplied to the S-VHS video signal on the switch 25, so that the 16: 9 screen is available on the video signal. Video signals can be recorded.

그러나, 상기 와이드스크린신호(WSS) 디코더(21)에서 팔플러스신호(PAL+)가 검출되지 않으면 스위칭제어신호(SC)가 로우로 출력하게 되고, 이에 의해 상기 스위치(22),(23)에서는 일측고정단자에 각기 공급되고 있는 4:3화면용 영상신호 즉, 색신호(C1), 휘도신호(Y1)가 선택되어 Y/C잭(26)을 통해 S-VHS 브이씨알측으로 전달되고, 스위치(25)에서는 4:3화면용 복합영상신호(CVBS1)가 선택되어 S-VHS 브이씨알측으로 공급되므로 그 브이씨알에서는 4:3화면용 영상신호를 녹화할 수 있게 된다.However, when the arm plus signal PAL + is not detected by the widescreen signal WSS decoder 21, the switching control signal SC is outputted low, whereby the switches 22 and 23 A 4: 3 picture video signal supplied to one fixed terminal, that is, a color signal C1 and a luminance signal Y1 is selected and transmitted to the S-VHS VSR through the Y / C jack 26, and the switch ( 25), the 4: 3 picture composite video signal CVBS1 is selected and supplied to the S-VHS V-C side, so that the V-CAL can record the 4: 3 picture video signal.

이상에서 상세히 설명한 바와 같이, 본 발명은 팔플러스 텔레비젼 수상기에서 팔플러스신호를 디코딩하여 16:9화면용 휘도신호 및 색신호, 복합영상신호를 생성하고, 와이드스크린신호의 검출여부에 따라 16:9화면용 영상신호나 4:3화면용 영상신호를 선택하여 브이씨알측으로 출력함으로써 일반 브이씨알에서도 고화질의 16:9화면용 영상신호를 녹화할 수 있는 효과가 있다.As described in detail above, the present invention decodes the FalPlus signal from a FalPlus television set to generate a luminance signal, a color signal, and a composite video signal for a 16: 9 screen, and displays a 16: 9 screen according to whether a widescreen signal is detected. By selecting the video signal for the video signal or 4: 3 screen video signal to the V-C side, there is an effect that can record a high-definition 16: 9 video signal even in the general VR.

Claims (2)

안테나(ANT)를 통해 수신되는 방송신호를 처리하여 복합영상신호(CVBS1), 휘도신호(Y1) 및 색신호(C1), 색부반송파(fsc) 및 U1,V1신호를 생성하는 입력영상신호 처리부(100A)와, 상기복합영상신호(CVBS1)로 부터 헬퍼신호를 복조한 후 그 헬퍼신호를 이용하여 상기 휘도신호(Y1)를 16:9화면비의 휘도신호(Y2)로 변환하고, 상기 U1,V1신호를 래터박스형태로 디스플레이하는데 적당하도록 라인보간하여 U2,V2신호를 생성하는 팔영상신호 처리부(100B)와, 상기 휘도신호(Y2) 및 U2,V2신호를 공급받아 적,녹,청색용 신호(R),(G),(B)를 생성하고, 이를 증폭처리하여 씨피티(CPT)에 디스플레이하는 영상신호 출력부(100C)와, 상기 U2,V2 및 휘도신호(Y2)를 엔코딩 처리하여 복합영상신호(CVBS2)와 색신호(C2)를 생성하고, 상기 복합영상신호(CVBS1)로 부터의 팔플러스신호(PAL+)의 검출여부에 따라 16:9화면용 영상신호(C2),(Y2),(CVBS2)를 선택하거나, 4:3화면용 영상신호(C1),(Y1),(CVBS1)를 선택하여 브이씨알측으로전송하는 인터페이스부(100D)로 구성한 것을 특징으로 하는 팔플러스 텔레비젼 수상기와 브이씨알의 인터페이스 회로.An input image signal processor 100A which processes a broadcast signal received through an antenna ANT and generates a composite image signal CVBS1, a luminance signal Y1 and a color signal C1, a color carrier fsc, and a U1, V1 signal. And demodulating a helper signal from the composite video signal CVBS1, and converting the luminance signal Y1 into a luminance signal Y2 with a 16: 9 aspect ratio using the helper signal, and converting the U1 and V1 signals. The arm image signal processing unit 100B for generating U2 and V2 signals by line interpolation so as to be suitable for displaying a letter box, and the luminance signal Y2 and the U2 and V2 signals. R), (G) and (B) are generated and amplified and displayed on the CPT (video signal output unit 100C), and the U2, V2 and luminance signal (Y2) by encoding the complex A video signal CVBS2 and a color signal C2 are generated, and 16 is detected depending on whether the PAL + signal PAL + is detected from the composite video signal CVBS1. : Interface unit for selecting 9-screen video signal (C2), (Y2), (CVBS2) or 4: 3-screen video signal (C1), (Y1), (CVBS1) and transmitting it to the VRC side ( An interface circuit of a PalPlus television receiver and VRC, which is composed of 100D). 제1항에 있어서, 인터페이스부(100D)는 상기 복합영상신호(CVBS1)를 디코딩 하여 팔플러스신호가 삽입되어 있는지를 확인하고, 그 확인결과에 따라 스위칭제어신호(SC)를 출력하는 와이드스크린신호 디코더(21)와, 색부반송파(fsc)를 이용하여, 상기 팔영상신호 처리부(100B)에서 출력되는 라인보간된 576라인의 U2,V2 및 휘도신호(Y2)를 처리하여 복합영상신호(CVBS2)와 색신호(C2)를 생성하는 팔엔코더(22)와, 상기 스위칭제어신호(SC)에 따라 16:9화면용 영상신호(C2),(Y2),CVS2)를 선택하거나, 4:3화면용 영상신호(C1),(Y1),(CVS1)를 선택하여 브이씨알측으로 출력하는 스위치(23-25)로 구성한 것을 특징으로 하는 팔플러스 복합영상신호와 브이씨알의 인터페이스 회로.The wide screen signal of claim 1, wherein the interface unit 100D decodes the composite video signal CVBS1 to determine whether an arm plus signal is inserted, and outputs a switching control signal SC according to the verification result. The decoder 21 and the color part carrier fsc are used to process U2, V2 and luminance signals Y2 of 576 lines interpolated by the arm image signal processor 100B to process the composite image signal CVBS2. And the arm encoder 22 for generating the color signal C2, and the video signal C2, Y2, or CVS2 for the 16: 9 screen is selected according to the switching control signal SC, or for the 4: 3 screen. An interface circuit of a Palm Plus composite video signal and a VR, comprising a switch 23-25 for selecting the video signals C1, Y1, and CVS1 and outputting the signals to the BC side.
KR1019950013462A 1995-05-26 1995-05-26 Interface circuit for pal plus tv set and v.c.r KR0162351B1 (en)

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KR0162351B1 true KR0162351B1 (en) 1998-12-15

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