KR930006188B1

KR930006188B1 - Lcd-projector

Info

Publication number: KR930006188B1
Application number: KR1019880010902A
Authority: KR
Inventors: 박홍철
Original assignee: 주식회사 금성사; 최근선
Priority date: 1988-08-26
Filing date: 1988-08-26
Publication date: 1993-07-08
Also published as: KR900004211A

Abstract

The circuit is for a LCD projector, particularly to realize a stereoscopic picture by using signals from VCR which uses a video cassette tape recorded for 2 channel 3-D broadcasting. The circuit comprises: a video 3-D signal processing unit (11) for detecting 3- D video detection signal (S) and L/R (left and right) signal, and extracting SYNC signal, and converting to the digital signal after separting operation; a 3-D TV broadcasting signal processing unit (66) for extracting S and L/R signal from a tuners (52)(53); a video signal processing unit (43) to drive LCD display by using signal from the circuits (11) and (66).

Description

Video stereoscopic signal processing circuit for stereoscopic television broadcasting

제1도는 본 발명의 입체 텔레비전 방송용 비데오 입체 영상신호 처리회로도.1 is a video stereoscopic video signal processing circuit diagram for stereoscopic television broadcasting according to the present invention.

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

1,33 : 스위치 2 : 비데오카세트레코오더1,33: switch 2: video cassette recorder

3 : A/D변환기 4 : 동기분리기3: A / D converter 4: Synchronous separator

5 : 발진기 6 : 필드메모리5: oscillator 6: field memory

7,57,58 : 좌데이타식별기 8,56,61 : 입체프로그램데이타식별기7,57,58: Left data identifier 8,56,61: Three-dimensional program data identifier

9, 10 : D/A변환기 11 : 비데오입체영상신호 처리회로9, 10: D / A Converter 11: Video Stereo Image Signal Processing Circuit

31, 32 :신호프로세서 34 : 디멀티플렉서31, 32: signal processor 34: demultiplexer

35, 36 : 액정구동기 37 : 좌측편광체판35, 36: liquid crystal driver 37: left polarizer plate

38 : 우측편광체판 39 : 좌측편광프로젝터38: right polarizer plate 39: left polarizer projector

40 : 우측편광프로젝터 41,63 : 오아게이트40: right polarizing projector 41,63: oragate

42 : 다이리스터 43 : 영상신호처리 회로42: thyristor 43: video signal processing circuit

51 : 안테나 52,53 : 튜너51 antenna 52,53 tuner

54,62 : 복조기 55,60 : 데이타분리회로54,62: demodulator 55,60: data separation circuit

59 : 튜닝콘트롤러 64 : 익스클루시브노아게이트59 Tuning Controller 64 Exclusive Noah Gate

65 : 앤드게이트 66 : 입체용방송의처리회로65: AND gate 66: processing circuit of three-dimensional broadcasting

본 발명은 액정(Liquid Calor Display : LCD) 프로젝터(Projector)의 회로에 관한 것으로, 특히 입체용 액정 프로젝터를 이용한 2채널의 입체방송, 시차 비월주사로 기록된 비데오 영상신호를 이용한 비데오 카세트 레코오더(VCR)의 입체화면을 구현하도록 한 입체 텔레비젼 방송용 비데오 입체 영상신호 처리회로에 관한 것이 다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circuit of a liquid crystal display (LCD) projector. In particular, a video cassette recorder using a video image signal recorded by two-dimensional stereoscopic broadcasting and a differential interlaced scanning using a three-dimensional liquid crystal projector ( The present invention relates to a video stereoscopic video signal processing circuit for stereoscopic television broadcasting to realize a stereoscopic screen of a VCR.

입체영상 시스템의 기본개념은 인간의 눈이 2개이고, 좌.우측의 눈이 어떤 대상물을 약간 다른시각에서 관찰하고 있다는 사실에 근거를 두고있다. 따라서 영상시스템에서 시청자에게 보여주고자 하는 대상물을 촬영할때는 좌.우의 두시각에 각각 1대의 카메라를 설치하여 촬영하고, 여기서 좌측에서 바라본 좌측영상(Left Video), 우측에서 바라본 영상을 우측영상(Right Video)이라 할때 입체영상을 화면에 표시하는 시점에서는 시청자의 왼쪽눈의 좌측영상만을 볼 수 있고, 오른쪽 눈이 우측영상만을 볼 수 있게해 주어야 한다.The basic concept of a stereoscopic imaging system is based on the fact that there are two human eyes, and that the left and right eyes observe an object at slightly different angles. Therefore, when shooting an object to be shown to the viewer in the video system, one camera is installed at each of the two left and right views, and the left video (left video) viewed from the left and the right video (right) are viewed from the right. Video), when the 3D image is displayed on the screen, only the left image of the viewer's left eye can be seen, and the right eye must see only the right image.

이를 위하여 종래의 시간차 비월주사 방식의 3차원 텔레비전에 있어서는, 좌.우의 두개의 영상을 한필드씩 교호로 디스플레이 하고, 액정셔터(Shutter)의 안경을 필드별로 스위칭시켜, 좌.우측 눈이 좌.우측 영상을 볼 수 있도륵 함으로서 입체효과가 얻어진다.To this end, in a conventional time-interlaced three-dimensional television, two images of left and right are displayed alternately by one field, glasses of the liquid crystal shutter are switched for each field, and the left and right eyes are left and right. The stereoscopic effect is obtained by allowing the image to be viewed.

그러나 이러한 장치에 있어서는 텔레비젼 수상기에 좌측영상, 우측영상이 나타남에 따라 좌측눈셔터, 우측눈셔터의 안경을 제어해야 하는 별도의 보조회로가 필요하고, 또 그 셔터의 안경이 텔레비젼 수상기에 연결되어야 하므로 입체영상을 시청할 수 있는 시청자의 수에 제한이 뒤따르게 되며, 또 텔레비젼 수상기에 좌측영상 및 우측영상이 교대로 바뀌므로 깜박거림이 느껴지고, 액정셔터안경의 한쪽이 번갈아 가면서 닫혀진 상태로 되므로 어둡게 되는 결함이 있었다.However, in such a device, a separate auxiliary circuit for controlling the glasses of the left eye shutter and the right eye shutter is required as the left image and the right image appear on the television receiver, and the glasses of the shutter must be connected to the television receiver. There is a limit on the number of viewers who can watch stereoscopic images, and the left and right images are alternately changed on the television set, causing flickering and darkening because one side of the LCD shutter glasses is alternately closed. There was this.

한편 이와같은 결합을 개선한 2채널로된 입체용 액정 프로젝터에 있어서는 편광된 빛이 투사되는 편광체판을 이용하여, 2채널로 처리된 좌.우의 두 영상신호가 서로 수직인 편광각을 갖는, 두개의 좌.우편광체관을 통해 스크린에 두개의 화면을 동시에 투사하고, 시청자가 스크린으로부터 반사되는 빛을, 편광안경을 통해 시청함으로써 입체효과가 얻어지는 것이다.On the other hand, in the two-channel stereoscopic liquid crystal projector which has improved such a combination, the two left and right image signals processed by two channels have a polarization angle perpendicular to each other using a polarizer plate on which polarized light is projected. The stereoscopic effect is obtained by simultaneously projecting two screens on the screen through the left and right polarizing tubes of, and viewing the light reflected from the screen through the polarized glasses.

그런데 이와같은 2채널로된 입체용 액정 프로젝터에 있어서는 시간차 비월주사 방식으로 기록된 비데오 카세트 레코오더의 테이프를 사용할 수 없게되는 결함이 있었다.However, such a two-channel stereoscopic liquid crystal projector has a defect in that the tape of the video cassette recorder recorded by the time difference interlaced scanning method cannot be used.

본 발명은 이와같은 종래의 결함을 감안하여 입체용 액정 프로젝터의 2채널 입체방송, 3차원용 VCR테이프의 시간차 비월주사에 의한 디스플레이 기능을 가능하게 한 입체 텔레비젼 방송용 비데오 입체 영상신호 처리회로를 창안한 것으로, 이를 첨부한 도면에 의하여 상세히 설명하면 다음과 같다.SUMMARY OF THE INVENTION In view of such a conventional deficiency, the present invention devised a video stereoscopic video signal processing circuit for stereoscopic television broadcasting that enables a display function by two-channel stereoscopic broadcasting of a three-dimensional liquid crystal projector and a time difference interlacing of a three-dimensional VCR tape. When described in detail by the accompanying drawings as follows.

첨부된 도면은 본 발명의 입체 텔레비젼 방송용 비데오 입체 영상신호 처리회로도로서 이에 도시한 바와 같이, 전원(Vcc)이 제어신호(A)로 절환되는 스위치(1)를 통해 인가됨에 따라 비데오 카세트 레코오더(2)로부터 1필드식 교호로 입체영상판별신호(S), L/R(L : Left Video,R : Right Video)신호를 출력하게 하 며, 입체영상판별신호(S)가 입체프로그램데이타식별기(8)를 통해 판별되게 하고, L/R신호가 좌데이타식별기(7)를 통해 판별되게 하고, 비데오영상신호가 A/D(Analog/Digital)변환기(3)를 통해 필드메모리(6)에 저장되게 함과 아울러 동기분리기(4)를 통해 수직 및 수평동기신호를 분리하여, 필드메모리(6)의 라이트인에이블(WE), 리드인에이블(RE), 수직동기(V)단자를 제어하게 하며, 발진기(5)의 출력이 필드메모리(6)의 수평동기(H)단자를 제어하게 하고, A/D변환기(3), 필드메모리(6)의 비데오 입체 영상신호가 각각 D/A변환기(9)(10)를 통해 처리되게 한 비데오 입체 영상신호처리회로(11)와, 전원(Vcc)이 제어신호(A)로 절환 되는 스위치(1)를 통해 인가됨에 따라 안테나(51)를 통과한 방송영상신호가 각각의 튜너(52)(53)를 통해 복조기(54)(62)에 인가되게 한 후 데이타분리회로(55)(60)에 인가되게 하고, 테이타분리회로(55)로부터 출력되는 영상신호의 채널인식신호(C)가 튜닝콘트롤러(59)를 통해 튜너(53)를 제어하게 하며, L/R신호가 좌데이타식별기(57)를 통해 판별되게 하며, 입체영상판별신호(S)가 입체프로그램데이타식별기(56)를 통해 판별 되게 하고, 데이타분리회로(60)로 부터 출력되는 L/R신호가 좌데이타식별기(58)을 통해 판별되게 하며, 입체영상판별신호(S)가 입체프로그램데이타식별기(61)를 통해 판별되게 하고, 좌데이타식별기(57)(58)의 출력이 익스클루시브노아게이트(64), 오아게이트(63)를 통해 처리되게 한 입체용 방송의 처리회로(66)와, 상기한 비데오입체영상신호처리회로(11), 입체용 방송의처리회로(66)에 내장된 D/A변환기(9)(10), 복조기(54)(62)의 출력이 각각의 신호프로세서(31)(39)를 통해 스위치(33)의 고정단자(a)(b)에 인가되게 하고, 입체 프로그램데이타식별기(8), 앤드게이트(65)를 통과한 입체프로그램데이타식별기(56)(61)의 출력이 오아게이트(41)를 통해 다이리스터(42)를 제어하여 우측편광프로젝터(40)에 전원(Vcc)을 공급하게 하고, 좌데이타식별기(7), 익스클루시브노아케이트(64) 및 오아게이트(63)를 통과한 좌데이타식별기(57)(58)의 출력이 제어신호(A)로 선택되는 디멀티플렉서(34)를 통해 스위치(33)의 가동스위치(33a) (33b)를 제어함에 따라 각각의 액정구동기(35)(36)로 좌측편광프로젝터(39), 우측편광프로젝터(40)의 좌측편광체판(37), 우측편광체판(38)을 구동하여, 방송 및 VCR의 입체영상 재생기능을 구현하게 한 영상신호처리회로(43)를 구성한 것으로, 도면설명중 필드메모리(6)는 SPS CCD(Symbolic Program System Complementary Coded Decimal)를 이용하여, 1필드 분의 영상신호를 저장되게 한 것이고, 상기한 비데오입체 영상신호처리회로 (11), 입체용방송의 처리회로(66), 영상신호 처리회로(43)는 VCR내부에 설치한 것이다.The accompanying drawings are a stereoscopic video signal processing circuit diagram for a stereoscopic television broadcasting according to the present invention. As shown in the drawing, as the power source Vcc is applied through the switch 1 switched to the control signal A, the video cassette recorder ( 2) outputs the stereoscopic image discrimination signal (S) and L / R (L: Left Video, R: Right Video) signals in a one-field alternating manner, and the stereoscopic image discrimination signal (S) is a stereoscopic program data identifier ( 8), the L / R signal is discriminated through the left data identifier (7), and the video image signal is stored in the field memory (6) through the A / D (Analog / Digital) converter (3). In addition to separating the vertical and horizontal synchronous signal through the synchronous separator (4), to control the write enable (WE), lead enable (RE), vertical synchronous (V) terminal of the field memory (6) The output of the oscillator 5 controls the horizontal synchronization H terminal of the field memory 6, the A / D converter 3, The video stereoscopic image signal processing circuit 11 which causes the video stereoscopic image signal of the video memory 6 to be processed through the D / A converters 9 and 10, respectively, and the power supply Vcc are switched to the control signal A. As applied through the switch 1, the broadcast video signal passing through the antenna 51 is applied to the demodulators 54 and 62 through the respective tuners 52 and 53, and then the data separation circuit 55. The channel recognition signal C of the video signal output from the data separation circuit 55 to control the tuner 53 through the tuning controller 59, and the L / R signal is left data. The discriminator 57 discriminates the stereoscopic image discrimination signal S through the stereoscopic program data identifier 56, and the L / R signal output from the data separation circuit 60 is the left data identifier ( 58), the stereoscopic image discrimination signal S is discriminated through the stereoscopic program data identifier 61, and left data identification. The stereoscopic broadcast processing circuit 66 which causes the output of the devices 57 and 58 to be processed through the exclusive noar gate 64 and the oragate 63, and the video stereo image signal processing circuit 11 described above. ), The outputs of the D / A converters 9 (10) and the demodulators (54) and (62) built in the processing circuit (66) of the stereoscopic broadcast are switched through the respective signal processors (31) and (39). The outputs of the three-dimensional program data identifiers 56 and 61 passing through the three-dimensional program data identifier 8 and the end gate 65 to the fixed terminals (a) and (b) are connected to the oragate 41. By controlling the thyristors 42 to supply the power (Vcc) to the right polarizing projector 40, the left through the left data identifier (7), the exclusive no-ask (64) and the oragate (63) The outputs of the data identifiers 57 and 58 control the movable switches 33a and 33b of the switch 33 through the demultiplexer 34, which is selected as the control signal A, respectively. 36) left A video signal processing circuit 43 for driving a polarizing projector 39, a left polarizing plate 37 and a right polarizing plate 38 of the right polarizing projector 40 to realize a stereoscopic image reproduction function of broadcasting and VCR is provided. In the drawing, the field memory 6 stores a video signal for one field by using a SPS CCD (Symbolic Program System Complementary Coded Decimal), and the video stereo image signal processing circuit (11), The stereoscopic broadcasting processing circuit 66 and the video signal processing circuit 43 are provided inside the VCR.

그리고 좌.우측편광프로잭터(39)(40)에 있어서 입체 영상신호의 처리시에만 프로젝터(39)(40)에 전원(Vcc)이 공급되고, 입체영상신호처리가 아닌 경우에는 좌측편광프로잭터(39)에만 전원(Vcc)이 공급되게 한 것이다.In the left and right polarization projectors 39 and 40, the power supply Vcc is supplied to the projectors 39 and 40 only when the stereoscopic image signal is processed, and when the stereoscopic image signal processing is not performed, the left polarizing projector 39 Power supply (Vcc) only.

이와같이 구성된 본 발명의 작용효과를 설명하면 다음과 같다.Referring to the effects of the present invention configured as described above are as follows.

우선 VCR모우드에 있어서는, 저전위로 된 제어신호(A)가 스위치(1)를 단자(a)로 접속시킨 후 전원(Vcc)이 스위치(1)를 통해 비데오입체영상신호처리회로(11)에 인가된 상태에서 비데오카세트레코오더(2)로 부터 한필드씩 교호로 비데오 영상신호가 출력되고, 이와함께 현재 출력중인 영상신호가 좌비데오신호/우비데오신호인지를 판별하는 L/R신호, 입체영상신호의 판별신호(S)가 출력된다.First, in the VCR mode, the low-potential control signal A connects the switch 1 to the terminal a, and then the power supply Vcc is applied to the video stereo image signal processing circuit 11 through the switch 1. Video signal is alternately outputted one by one from the video cassette recorder 2, and the L / R signal and the three-dimensional video signal for discriminating whether the video signal currently being output is the left video signal or the right video signal. A discrimination signal S is output.

여기서 입체프로그램데이타식별기(8)는 코드(Code)화된 입체영상판별신호(S)를 판별하는 것으로, 현재 출력중인 비데오 영상신호가 입체영상신호이면, 고전위를 출력한 후 오아게이트(41)를 통해 다이리스터(42)를 구동함에 따라 우측 편광프로젝터(40)에 전원(Vcc)이 공급된다.Here, the stereoscopic program data identifier 8 discriminates the coded stereoscopic image discrimination signal S. If the video image signal being output is a stereoscopic image signal, the stereoscopic program data identifier 8 outputs a high potential and then operates the oragate 41. As the thyristor 42 is driven through, the power supply Vcc is supplied to the right polarizing projector 40.

이때 좌데이타식별기(7)는 L/R신호를 판별하여, 제어신호(A)와 함께 디멀티플렉서(34)를 제어하는 것으로, 좌비데오신호(LV)가 판별되면, 고전위를 출력한 후 저전위로 된 제어신호(A)와 함께 디멀티플렉서(34)를 제어하여 스위치(33)를 제어함에 따라 가동스위치(33a)를 고정접점(b)에, 가동스위치(33b)를 고정접점(a)에 접속시키고, 우비데오신호(RV)가 판별되면, 저전위를 출력한 후 디멀티플렉서(34)를 통해 스위치(33)를 제어함에 따라 가동스위치(33a)를 고정점점(a)에, 가동스위치(33b)를 고정점점(b)에 접속시킨다.At this time, the left data identifier 7 determines the L / R signal and controls the demultiplexer 34 together with the control signal A. When the left video signal LV is determined, the left data identifier 7 outputs a high potential and then goes to a low potential. By controlling the demultiplexer 34 together with the control signal A, the switch 33 is controlled to connect the movable switch 33a to the fixed contact b and the movable switch 33b to the fixed contact a. When the video signal RV is determined, the low potential is output and the switch 33 is controlled by the demultiplexer 34 to move the movable switch 33a to the fixed point a and the movable switch 33b. Connect to fixed point b.

이와동시에 비데오카세트레코오더(2)로부터 출력되는 비데오 영상신호가 A/D변환기(3)를 통해 필드메모리(6)에 디지탈 영상데이타로 저장됨과 아울러 동기분리기(4)를 통해 수평, 수직동기(H,V)로 분리된 후 필드메모리(6)에 인가된다.At the same time, the video image signal output from the video cassette recorder 2 is stored as digital image data in the field memory 6 through the A / D converter 3 and the horizontal and vertical synchronization (Synchronization separator 4) After separating into H, V) is applied to the field memory (6).

이때 필드메모리(6)는 인가되는 구직동기(V)에 의해 리드 및 라이트인에이블(RE)(WE)되고, 수평동기(H)에 의해 수직방향으로 데이타를 이동하며, 발진기(5)의 출력에 의해 수평방향으로 테이타를 이동한다.At this time, the field memory 6 is read and write-enabled RE by the applied job synchronizer V, the data is moved vertically by the horizontal synchronizer H, and the output of the oscillator 5 is output. Move the data in the horizontal direction.

그리고 디지탈화된 A/D변환기(3)의 출력과 필드메모리(6)의 출력이 각각의 D/A변환기(9)(10)를 통해 아날로그 테이타로 변환된 후 신호프로세서(31)(32)를 통해 스위치(33)의 고정접검(a)(b)에 인가된다.After the output of the digitalized A / D converter 3 and the output of the field memory 6 are converted into analog data through the respective D / A converters 9 and 10, the signal processors 31 and 32 are connected. It is applied to the fixed inspection (a) (b) of the switch 33 through.

이와같이 하여 비테오카세트레코오더(2)로부터 좌측비데오영상신호(LV)가 출력되는 경우에는, A/D변환기(3)를 통해 디지탈화된 좌비데오영상신호(LV)가 출력되고, 직전에 메모리된 필드메모리(6)로부터 우비데오영상신호(RV)가 출력된 후 각각의 D/A변환기(9)(10), 신호프로세서(31)(32)를 통해 스위치(33)의 고정접점(a)(b)에 인가된다.When the left video image signal LV is output from the video cassette recorder 2 in this manner, the left video image signal LV is digitalized through the A / D converter 3, and is stored immediately before. The fixed contact (a) of the switch 33 through the respective D / A converters 9 and 10 and the signal processors 31 and 32 after the video video signal RV is output from the field memory 6. is applied to (b).

이에 디멀티플렉서(34)의 제어에 의해 스위치(33)의 가동스위치(33a)가 고정접점(b)으로, 가동스위치(33b)가 고정접점(a)으로 접속되므로 고정접점(b)을 통과한 좌비데오영상신호(LV)가 액정구동기(35)를 통해 좌측편광프로젝터(39)의 좌측편광체판(37)에 인가되고, 고정접점(a)을 통과한 우비데오영상신호(RV)가 액정구동기(36)을 통해 우측편광 프로젝터(40)의 우측편광체판(38)에 인가된다.In response to the demultiplexer 34, the movable switch 33a of the switch 33 is connected to the fixed contact b, and the movable switch 33b is connected to the fixed contact a. The video image signal LV is applied to the left polarizer plate 37 of the left polarization projector 39 through the liquid crystal driver 35, and the video image signal RV passing through the fixed contact a is transferred to the liquid crystal driver ( 36 is applied to the right polarizer plate 38 of the right polarization projector 40.

그리고 비데오 카세트 레코오더(2)로부터 우측비데오 영상신호(RV)가 출력되는 경우에는, A/D변환기(3)를 통해 디지탈화된 우비데오신호가 출력되고, 직전에 메모리된 필드 메모리(6)로부터 좌비데오영상신호(LV)가 출력된 후 각각의 D/A변환기(9)(10), 신호프로세서(31)(32)를 통해 스위치(33)의 고정접점(a)(b)에 인가된다.When the right video image signal RV is output from the video cassette recorder 2, the digital video signal is output through the A / D converter 3, and the field memory 6 stored immediately before is output. After the left video image signal LV is output, it is applied to the fixed contact points a and b of the switch 33 through the respective D / A converters 9 and 10 and the signal processors 31 and 32. .

이때, 디멀티플렉서(34)의 제어에 의해 스위치(33)의 가동스위치(33a)가 고정접점(a)으로, 가동스위치(33b)가 고정접점(b)으로 접속되므로 교정접점(a)을 통과한 좌비데오영상신호(LV)가 액정구동기(35)를 통해 좌측편광프로젝터(39)의 좌측편팡체판(37)에 인가되고, 고정접점(b)을 통과한 우비데오영상신호(RV)가 액정구동기(36)를 통해 우측편광프로젝터(40)의 우측편광체판(38)에 인가된다.At this time, the movable switch 33a of the switch 33 is connected to the fixed contact point a and the movable switch 33b is connected to the fixed contact point b under the control of the demultiplexer 34. The left video image signal LV is applied to the left side plate 37 of the left polarizing projector 39 through the liquid crystal driver 35, and the right video image signal RV passing through the fixed contact b is transferred to the liquid crystal driver. It is applied to the right polarizing plate 38 of the right polarizing projector 40 via 36.

따라서 비데오카세트레코오더(2)로부터 출력되는 좌우측비데오영상신호가 시차적으로 좌우편광프로젝터(39)(40)에 비월주사 됨으로써 입체영상효과가 얻어지는 것이다.Therefore, the left and right video image signals output from the video cassette recorder 2 are interlaced to the left and right polarization projectors 39 and 40, thereby obtaining a stereoscopic image effect.

한편 방송수신 모우드에 있어서는, 고전위로된 제어신호(A)가 스위치(1)를 단자(B)로 접속시킨 후 전원(Vcc)이 스위치(1)를 통해 입체용 방송의 처리회로(66)에 인가된 상태에서 사용자가 튜너(52)를 통해 채널을 선택하면 안테나(51)를 통해 수신된 방송신호중 선택체널의 좌측영상고주파신호가 튜너(52)를 통해 튜닝된 후 복조기(54)를 통해 데이타분리회로(55)에 인가되어 복조신호속에 포함된 입체영상신호의 판별신호(S), 현채널속에 있는 좌우측비데오영상신호(L/R), 다른 체널지정신호(C)를 분리한다.On the other hand, in the broadcast reception mode, the high-potential control signal A connects the switch 1 to the terminal B, and then the power supply Vcc is connected to the processing circuit 66 for stereoscopic broadcasting through the switch 1. When the user selects a channel through the tuner 52 in the applied state, the left image high frequency signal of the selected channel among the broadcast signals received through the antenna 51 is tuned through the tuner 52 and then the data through the demodulator 54. The separation signal 55 is applied to separate the discrimination signal S of the stereoscopic video signal included in the demodulation signal, the left and right video video signals L / R in the current channel, and the other channel designation signal C.

여기서 데이타분리회로(55)의 다른 채널선택신호가 튜닝콘트롤러(59)틀 통해 튜너(53)를 제어함에 따라 수신된 방송신호중 선택채널의 우측영상 고주파신호가 튜너(53)를 통해 튜닝된 후 복조기(62)를 통해 데이타분리회로(60)에 인가되어 복조신호속에 포함된 입체영상신호의 판별신호(S), 현채널속에 있는 좌우측비데오영상신호(L/R)를 분리된다.Here, as another channel selection signal of the data separation circuit 55 controls the tuner 53 through the tuning controller 59, a demodulator after the right image high frequency signal of the selected channel among the received broadcast signals is tuned through the tuner 53. Through the 62, the data separation circuit 60 separates the discrimination signal S of the stereoscopic image signal included in the demodulation signal and the left and right video image signals L / R in the current channel.

이와동시에 입체프로그램데이타식별기(56)는 데이타분리회로(55)의 좌측입체영상신호를 판별하여, 앤드게이트(65)의 일측에 고전위를 인가하고, 입체프로그램데이타식별기(61)는 테이타분리회로(60)의 우측입체영상신호를 판별하여, 앤드게이트(65)의 타측에 고전위를 인가한 후 오아게이트(41)를 통해 다이리스터(42)를 구동함에 따라 우측편광프로젝터(40)에 전원(Vcc)이 인가된다.At the same time, the stereoscopic program data identifier 56 discriminates the left stereoscopic image signal of the data separation circuit 55, applies a high potential to one side of the AND gate 65, and the stereoscopic program data identifier 61 is a data separation circuit. The right stereoscopic image signal of the 60 is discriminated, the high potential is applied to the other side of the AND gate 65, and the power is supplied to the right polarizing projector 40 by driving the die Lister 42 through the ora gate 41. (Vcc) is applied.

이와동시에 데이타분리회로(55)의 좌측영상신호를 판별한 좌측데이타식별기(57)가 고전위를 출력하고, 데이타분리회로(60)의 우측영상신호를 판별한 좌측데이타식별기(58)가 저전위를 출력하므로 익스클루시브노아게이트(55)의 출력이 저전위로 되고, 오아게이트(63)의 출력측에 고전위가 발생된 후 고전위로 된 제어신호(A)와 함께 디멀티플렉서(34)를 제어하여, 스위치(33)를 제어함에따라 가동스위치(33a)가 고정접점(b)에 접속되고, 가동스위치(33b)가 고정접점(a)에 접속된다.At the same time, the left data identifier 57 that has determined the left image signal of the data separation circuit 55 outputs a high potential, and the left data identifier 58 that has determined the right image signal of the data separation circuit 60 has a low potential. Since the output of the exclusive noah gate 55 becomes a low potential, and a high potential is generated on the output side of the oragate 63, the demultiplexer 34 is controlled together with the high-potential control signal A. By controlling the switch 33, the movable switch 33a is connected to the fixed contact b, and the movable switch 33b is connected to the fixed contact a.

이때 복조기(54)를 통과한 좌측영상신호가 신호프로세서(32)를 통해 스위치(33)의 고정접점(b)에 인가된 후 액정구동기(35)를 통해 좌측편광프로젝터(39)의 좌측편광체판(37)에 인가된다.At this time, the left image signal passing through the demodulator 54 is applied to the fixed contact b of the switch 33 through the signal processor 32, and then the left polarizing plate of the left polarizing projector 39 through the liquid crystal driver 35. Is applied to (37).

그리고 복조기(62)를 통과한 우측영상신호가 신호프로세서(31)를 통해 스위치(33)의 고정접점(a)에 인가된 후 액정구동기(36)를 통해 우측편광프로젝터(40)의 우측편광체판(38)에 인가된다.Then, the right image signal passing through the demodulator 62 is applied to the fixed contact a of the switch 33 through the signal processor 31, and then the right polarizer plate of the right polarizing projector 40 through the liquid crystal driver 36. Is applied to (38).

따라서 안테나(51)로부터 수신된 영상신호가 2채널로 튜닝된 후 좌우측편광프로젝터(39)(40)에 디스플레이 됨으로써 입체용 방송효과가 얻어지는 것이다.Therefore, the image signal received from the antenna 51 is tuned to two channels and then displayed on the left and right polarization projectors 39 and 40 to obtain a stereoscopic broadcasting effect.

이상에서 상세히 설명한 바와같이 본 발명은 텔레비전 방송국에서 2채널을 통해 입체영상신호를 송신함으로써 텔레비전 수상기에서 영상신호를 입체적으로 감상할 수 있을 뿐 아니라 VCR테이프의 시차 비월주사로 인하여 재새영상신호를 입체적으로 감상할 수 있는 효과가 있다.As described in detail above, the present invention not only enables the television station to transmit stereoscopic video signals through two channels, but also allows stereoscopic viewing of the video signals on the television receiver and stereoscopically reproduces the new video signals due to the differential interlacing of the VCR tape. The effect is appreciable.

Claims

In the stereoscopic television using the left and right polarizing projectors 39 and 40, the stereoscopic image output from the video cassette recorder 2 as the power supply Vcc is supplied through the switch 1 switched to the control signal A. The discrimination signal S is discriminated through the stereoscopic program data identifier 8, the L / R signal is discriminated through the left data identifier 7, and the video image signal is transmitted through the A / D converter 3. In addition to being stored in the memory 6, and separated into the vertical, horizontal synchronous (V) (H) through the synchronous separator (4) to write, lead enable terminal (VE) (RE), vertical of the field memory (6) To control the terminal (V), the output of the oscillator (5) to control the horizontal terminal (H) of the field memory (6), the video image output from the A / D converter (3), the field memory (6) Video-stereoscopic image signal processing circuit 11, which causes a signal to be processed through each D / A converter 9, 10, and a switch which is switched to a control signal A As the power supply Vcc is supplied through the device 1, the tuned stereoscopic image signal is received through the demodulator 54 and received through the tuner 52. Is applied to separate the other channel designation signal (C), L / R signal, stereoscopic image identification signal (S), and the other channel designation signal (C) controls the tuner (53) through the tuning controller (59) After tuning to another channel, it is applied to the data separation circuit 60 through the demodulator 62 to separate the L / R signal and the stereoscopic image discrimination signal S, and the respective stereoscopic image discrimination signals S. Is processed through the stereoscopic program data identifiers 56 and 61, and after each L / R signal is processed through the left data identifiers 57 and 58, the Exclusive Noagate 64 and the Oagate ( The stereoscopic broadcasting processing circuit 66, the video stereoscopic image signal processing circuit 11, and the stereoscopic broadcasting processing circuit 6 6) The output of the stereoscopic program data identifier 8 and the stereoscopic program data identifier 56 and 61 passing through the AND gate 65 controls the thyristor 42 through the oragate 41. Then, the power supply (Vcc) of the right polarizing projector 40 is controlled, and the outputs of the left data identifiers 57 and 58 passing through the left data identifier 7 and the oragate 63 are controlled signals ( Control the demultiplexer 34 together with A) to control the switch 33, and the outputs of the respective D / A converters 9, 10 and demodulators 54, 62 are connected to the signal processor 31 ( 32 is applied to the switch 33 and then applied to the left and right polarizer plates 37 and 38 of each of the liquid crystal drivers 35 and 36 and the left and right polarization projectors 39 and 40, respectively. A stereoscopic video signal processing circuit for stereoscopic television broadcasting, characterized by comprising (43).

The video stereoscopic video broadcasting system according to claim 1, wherein the video stereoscopic video signal processing circuit (11), the stereoscopic broadcasting processing circuit (66), and the video signal processing circuit (43) are provided inside the VCR. Image signal processing circuit.

The video stereoscopic video signal processing circuit according to claim 1, wherein the field memory (6) stores one field of the video signal.

The video stereoscopic video signal processing circuit according to claim 1 or 3, wherein an SPS CCD is used as the field memory (6).

The power supply Vcc is supplied to both of the left and right polarization projectors 39x40 only when the stereoscopic image signal is output, and the left polarization projector 39 is applied when the stereoscopic image signal is not output. A stereoscopic video signal processing circuit for stereoscopic television broadcasting, characterized by supplying only a power supply (Vcc).

The stereoscopic television broadcasting according to claim 1, wherein the switch 33 controls the movable switches 33a and 33b by the control signal of the demultiplexer 34 and outputs the left and right video signals at a predetermined position. Video stereoscopic image signal processing circuit.