KR950005925Y1 - Caption auto recognize and transfer circuit - Google Patents
Caption auto recognize and transfer circuit Download PDFInfo
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- KR950005925Y1 KR950005925Y1 KR92026052U KR920026052U KR950005925Y1 KR 950005925 Y1 KR950005925 Y1 KR 950005925Y1 KR 92026052 U KR92026052 U KR 92026052U KR 920026052 U KR920026052 U KR 920026052U KR 950005925 Y1 KR950005925 Y1 KR 950005925Y1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
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- 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)
- Processing Of Color Television Signals (AREA)
Abstract
내용 없음.No content.
Description
제 1 도는 종래 캡션 절환회로 구성도.1 is a block diagram of a conventional caption switching circuit.
제 2 도는 본 고안 캡션 자동인식 및 절환회로 구성도.2 is a schematic diagram of the caption automatic recognition and switching circuit of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
0, @nlm+300, @nlm+549; 1,1; &1 : 영상신호검출부&2 : 색신호처리부0, @ nlm + 300, @ nlm + 549; 1,1; & 1: video signal detection section & 2: color signal processing section
&3 : 마이크로컴퓨터&3A : 비디오램& 3: Microcomputer & 3A: Video RAM
&3B : OSD&4 : 색신호스위칭부& 3B: OSD & 4: color signal switching unit
&5 : 색신호증폭부&6 : 씨피티& 5: color signal amplification part & 6: Citi
&7 : 캡션디코더&8 : 캡션감지부& 7: Caption decoder & 8: Caption detection part
&9 : 캡션수신표시부&10 : OSD데이타제공부& 9: Caption reception display unit & 10: OSD data providing unit
&11 : OSD출력제어부&12 : OSD출력선택부& 11: OSD output control unit & 12: OSD output selection unit
본 고안은 켑션신호 자동인식에 관한 것으로, 특히 청각장애자를 위한 캡션자막신호를 처리하는 시스템을 내장한 티브이에서 캡션신호를 검출하여 캡션신호 수신여부를 알려주며, 온 스크린 디스플레이(On screen Display : 이하 OSD라 칭함)시에도 캡션신호를 출력하고, OSD는 선택적으로 출력가능토록 한 캡션 자동인식 및 절환회로에 관한 것이다.The present invention relates to caption signal automatic recognition, and in particular, it detects the caption signal from the TV with a built-in system for processing the caption subtitle signal for the hearing impaired and informs whether the caption signal is received. Also, the caption signal is outputted, and the OSD is related to caption automatic recognition and switching circuit which can be selectively outputted.
제 1 도는 종래 캡션 절환회로 구성도로서, 이에 도시한 바와 같이 안테나로 부터 들러오는 고주파신호에서 영상신호를 검출하는 영상신호검출부(1)와, 상기 영상신호검출부(1)의 출력신호에서 티브이의 색신호를 검출하여 처리하는 색신호처리부(2)와 상기 영상신호검출부(1)의 출력신호에서 캡션신호를 검출하여 캡션신호의 색신호와 제어신호를 출력하는 마이크로컴퓨터(3)와, 상기 마이크로컴퓨터(3)의 제어신호에 따라 티브이의 색신호와 켑션신호의 색신호를 스위칭하는 색신호스위칭부(4)와, 상기 색신호스위칭부(4)에서 스위칭되는 색신호를 증폭하여 씨피티(6)를 구동하는 색신호증폭부(5)로 구성한다.1 is a block diagram of a conventional caption switching circuit. As shown in FIG. 1, a video signal detector 1 detects a video signal from a high frequency signal coming from an antenna, and a TV signal is output from the output signal of the video signal detector 1. A color signal processor 2 for detecting and processing a color signal, a microcomputer 3 for detecting a caption signal from an output signal of the image signal detector 1, and outputting a color signal and a control signal of the caption signal, and the microcomputer 3 A color signal switching unit 4 for switching the color signal of the TV and the color signal of the section signal according to the control signal of the TV), and a color signal amplifying unit for driving the Citi 6 by amplifying the color signal switched by the color signal switching unit 4. It consists of (5).
이와 같이 구성한 종래 캡션 절환회로는 안테나를 통해 고주파신호가 영상신호검출부(1)로 인가되면, 상기 영상신호검출부(1)는 영상신호를 검출하여 색신호처리부(2)와 마이크로컴퓨터(3)로 출력한다.In the conventional caption switching circuit configured as described above, when a high frequency signal is applied to the image signal detector 1 through an antenna, the image signal detector 1 detects an image signal and outputs the image signal to the color signal processor 2 and the microcomputer 3. do.
상기 색신호처리부(2)는 영상신호에서 티브이의 색신호(R-Y, G-Y, B-Y)를 검출하여 처리하고, 상기 마이크로컴퓨터(3)는 영상신호의 수직귀선기간내에 포함되어 있는 캡션신호를 분리하여 그 캡션신호를 비디오램(3A)에 저장함과 아울러 제어신호(BLK)를 출력한다.The color signal processor 2 detects and processes the color signals RY, GY and BY of the TV from the video signal, and the microcomputer 3 separates the caption signals included in the vertical retrace period of the video signal. The signal is stored in the video RAM 3A and the control signal BLK is output.
이때 상기 마이크로컴퓨터(3)에서 출력되는 제어신호(BLK)가 저전위이면, 색신호스위칭부(4)의 스위(SW1)는 상기 색신호처리부(2)의 출력신호를 선택하고, 제어신호(BLK)가 고전위일때는 비디오램(3A)에 저장된 캡션신호의 색신호를 선택한다.At this time, if the control signal BLK output from the microcomputer 3 is low potential, the switch SW 1 of the color signal switching unit 4 selects the output signal of the color signal processing unit 2 and the control signal BLK Is a high potential, the color signal of the caption signal stored in the video RAM 3A is selected.
이와 같이 상기 색신호증폭부(4)를 통하여 색신호는 색신호증폭부(5)에서 증폭하여 씨피티(6)에 나타난다. 한편, 갭션신호 수신시 사용자가 리모콘으로 OSD(3B)를 선택하면, 마이크로컴푸터(3)의 비디오램(3B)에는 캡션신호가 사라지고 OSD 데이타가 입력되면 씨피티(6)에 나타난다.In this way, the color signal is amplified by the color signal amplifier 5 through the color signal amplifier 4 and appears in the Citi 6. On the other hand, when the user selects the OSD (3B) with the remote control when receiving the gap signal, the caption signal disappears in the video RAM (3B) of the microcomputer 3 and appears on the Citi 6 when the OSD data is input.
그러나, 상기한 종래 갭션 절환회로는 캡션신호 수신시 사용자가 리모콘으로 OSD 를 선택하면 캡션신호는 출력되지 않고, 캡션신호 방송시에는 캡션신호가 수신되는지의 여부를 사용자가 알지 못하게 되며, OSD 출력신호를 선택하는 기능이 없어 사용자가 불편을 겪는 문제점이 있었다.However, when the user selects the OSD with the remote controller when the caption signal is received, the conventional gaption switching circuit does not output the caption signal, and when the caption signal is broadcast, the user does not know whether the caption signal is received and the OSD output signal. There was no problem in that the user suffers from inconvenience.
본 고안은 이러한 문제점을 해결하기 위하여 캡션신호 수신시 캡션신호의 수신여부상태를 알려주며 OSD 선택시에도 캡션신호를 출력시키고, OSD의 출력신호를 원할때는 OSD 선택할 수 있도록 하는 캡션 자동인식 및 절환회로를 안출한 것으로, 이를 첨부한 도면을 참조하여 상세히 설명하면 다음과 같다.In order to solve this problem, the present invention notifies the caption signal reception status when receiving the caption signal, and outputs the caption signal even when the OSD is selected, and the caption automatic recognition and switching circuit is designed to allow the OSD to be selected when the OSD output signal is desired. If it is described in detail with reference to the accompanying drawings as follows.
제 2 도는 본 고안 켑션 자동인식 및 절환회로 구성도로서, 이에 도시한 바와 같이 고주파신호에서 영상신호를 검출하는 영상신호 검출부(1)와, 상기 영상신호검출부(1)의 출력신호를 입력받아 티브이 색신호를 처리하는 색신호처리부(2)와, 상기 영상신호검출부(1)의 출력신호에서 캡션신호를 검출하는 켑션디코더(7)와, 상기 캡션디코더(7)의 출력신호에 따라 캡션신호를 감지하는 캡션감지부(8)와, 상기 캡션감지부(8)의 감지신호에 따라 캡션신호 수신여부를 표시하는 캡션수신표시부(9)와, 상기 캡션디코더(7)의 출력신호에 따라 캡션신호의 색신호와 제어신호(BLK)를 출력하고, OSD선택신호에 따라 OSD제어신호를 출력하는 마이크로 컴퓨터(3)와, 상기 마이크로 컴퓨터(3)의 제어신호(BLK)에 따라 티브이 색신호와 캡션신호의 색신호를 선택하는 색신호스위칭부(4)와, 상기 색신호스위칭부(4)의 스위칭신호를 증폭하여 씨피티(6)를 구동하는 색신호증폭부(5)와, 상기 캡션감지부(8)의 출력신호에 따라 OSD데이타를 제공하는 OSD데이타제공부(10)와, 상기 캡션감지부(8)의 출력신호에 따라 OSD출력을 제어하는 OSD출력제어부(11)와, 상기 마이크로컴퓨터(3)의 OSD제어신호에 따라 OSD출력을 선택하는 OSD출력선택부(12)로 구성한다.FIG. 2 is a block diagram of the automatic recognition and switching circuit of the present invention. As shown therein, a video signal detection unit 1 for detecting a video signal from a high frequency signal and an output signal of the video signal detection unit 1 are input. A color signal processor 2 for processing a color signal, a caption decoder 7 for detecting a caption signal from an output signal of the image signal detector 1, and a caption signal for detecting a caption signal according to the output signal of the caption decoder 7 The caption detection unit 8, the caption reception display unit 9 indicating whether the caption signal is received according to the detection signal of the caption detection unit 8, and the color signal of the caption signal according to the output signal of the caption decoder 7. And a microcomputer 3 which outputs a control signal BLK and outputs an OSD control signal according to the OSD selection signal, and a color signal of a TV color signal and a caption signal according to the control signal BLK of the microcomputer 3. Selected Color Signal Switching OSD data according to the output signal of the caption sensing unit 8 and the color signal amplifier 5 driving the CITIC 6 by amplifying the switching signal of the color signal switching unit 4 and the color signal switching unit 4. OSD data providing unit 10, OSD output control unit 11 for controlling the OSD output according to the output signal of the caption detection unit 8, OSD output in accordance with the OSD control signal of the microcomputer (3) OSD output selection unit 12 for selecting the configuration.
이와 같이 구성한 본 고안의 작용효과를 첨부한 도면을 참조하여 상세히 설명하면 다음과 같다.When described in detail with reference to the accompanying drawings the effect of the present invention configured as described above are as follows.
영상신호검출부(1)가 고주파신호에서 영상신호를 검출하면, 색신호처리부(2)는 영상신호로부터 티브이의 색신호를 처리하고, 캡션디코더(7)는 영상신호에서 검출하여 마이크로컴퓨터(3)로 출력함과 아울러 캡션감지부(8)로 출력한다.When the image signal detection unit 1 detects the video signal from the high frequency signal, the color signal processing unit 2 processes the color signal of the TV from the video signal, and the caption decoder 7 detects the video signal and outputs it to the microcomputer 3. In addition, it is output to the caption detection unit (8).
이때, 영상신호에 캡션신호가 없으면 마이크로컴퓨터(3)는 제어단자(BLK)로 저전위를 출력하여 색신호스위칭부(4)의 스위치(SW1)가 색신호처리부(2)의 출력신호를 선택하도록 한다.At this time, if there is no caption signal in the video signal, the microcomputer 3 outputs a low potential to the control terminal BLK so that the switch SW 1 of the color signal switching unit 4 selects the output signal of the color signal processing unit 2. do.
한편, 캡션신호가 검출되면 마이크로컴퓨터(3)는 캡션신호의 색신호(Rc, Gc, Bc)를 처리하여 비디오램(3A)에 저장함과 아울러 제어신호(BLK)를 고전위로 하면 색신호스위칭부(4)의 스위치(SW1)는 비디오램(3A)에 저장된 캡션신호의 색신호(Rc, Gc, Bc)를 선택하고, 이색신호는 색신호증폭부(5)에서 증폭된 후 씨피티(6)에 나타난다.On the other hand, when the caption signal is detected, the microcomputer 3 processes the color signals Rc, Gc, and Bc of the caption signals, stores them in the video RAM 3A, and sets the color signal switching unit 4 when the control signal BLK becomes high potential. Switch SW 1 selects the color signals Rc, Gc, and Bc of the caption signal stored in the video RAM 3A, and the dichroic signals are amplified by the color signal amplifier 5 and appear on the Citi 6. .
한편, 캡션감지부(8)는 상기 캡션검출부(7)의 출력신호에 따라 고전위를 출력하여 캡션수신표시부(9)의 발광다이오드(LED)를 발광시켜 캡션신호가 수신중이라는 상태를 나태내어 준다.On the other hand, the caption detection unit 8 outputs a high potential according to the output signal of the caption detection unit 7 to emit a light emitting diode (LED) of the caption reception display unit 9 to indicate that the caption signal is being received. give.
또한, 상기 고전위는 OSD데이타제공부(10)로 입력되어 트랜지스터(TR1)를 턴-온시킨다. 이에따라 마이크로 컴퓨터(3)의 OSD(3B)가 구동하여 OSD(3B)가 메모리 된 스크린으로"캡션온"이라는 OSD신호를 출력하면 스크린에 캡션신호 수신중이라는 자막이 나오게 된다.In addition, the high potential is input to the OSD data providing unit 10 to turn on the transistor TR 1 . Accordingly, when the OSD 3B of the microcomputer 3 is driven to output the OSD signal "caption on" to the screen on which the OSD 3B is memorized, the caption signal being received is displayed on the screen.
또한, 상기 트랜지스터(TR1)의 콜렉터가 저전위로 되면 트랜지스터(TR2)가 오프되므로 상기 캡션감지부(8)의 고전위신호는 OSD출력제어부(11)의 트랜지스터(TR3)의 베이스로 인가되어 그 트랜지스터(TR3)를 턴-온시킨다.In addition, when the collector of the transistor TR 1 becomes low potential, the transistor TR 2 is turned off, so that the high potential signal of the caption sensing unit 8 is applied to the base of the transistor TR 3 of the OSD output control unit 11. The transistor TR 3 is turned on.
이에따라 캡션신호가 수신중에 사용자가 OSD(3B)를 선택하더라도 OSD신호는 씨피티(9)에 나타나지 않는다.Accordingly, even if the user selects the OSD 3B while the caption signal is being received, the OSD signal does not appear in the Citity 9.
만약, 사용자가 캡션신호 수신중 OSD신호를 띄우고 싶으면 리모콘으로 OSD선택신호를 출력한다.If the user wants to display the OSD signal while receiving the caption signal, the remote controller outputs the OSD selection signal.
이에따라, 마이크로 컴퓨터(3)는 이를 감지하여 OSD단자로 고전위를 출력하며, OSD출력선택부(12)의 트랜지스터(TR4)가 동작하여 스위치(SW2)의 제어단자(IO)를 고정단자(IH)에 접속시켜 캡션신호 수신중에도 OSD가 씨피티(6)로 나오게 된다.Accordingly, the microcomputer 3 detects this and outputs a high potential to the OSD terminal, and the transistor TR 4 of the OSD output selection unit 12 operates to fix the control terminal I O of the switch SW 2 . By connecting to the terminal I H , the OSD exits to the CIT 6 even during caption signal reception.
상기와 설명한 바와 같이 본 고안은 현재 캡션신호 수신중 OSD를 선택하더라도 캡션신호는 계속 나오며, OSD출력신호를 원할때는 리모콘으로 이용하여 OSD의 제어가 가능한 효과가 있다.As described above, the present invention, even if the OSD is selected while receiving the caption signal, the caption signal continues to come out, and when the OSD output signal is desired, the OSD can be controlled using the remote control.
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KR92026052U KR950005925Y1 (en) | 1992-12-22 | 1992-12-22 | Caption auto recognize and transfer circuit |
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KR92026052U KR950005925Y1 (en) | 1992-12-22 | 1992-12-22 | Caption auto recognize and transfer circuit |
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KR950005925Y1 true KR950005925Y1 (en) | 1995-07-26 |
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---|---|---|---|
KR92026052U KR950005925Y1 (en) | 1992-12-22 | 1992-12-22 | Caption auto recognize and transfer circuit |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR950005925Y1 (en) |
-
1992
- 1992-12-22 KR KR92026052U patent/KR950005925Y1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR940018462U (en) | 1994-07-30 |
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