KR20000040205A - Digital broadcast receiver performing slow display - Google Patents
Digital broadcast receiver performing slow display Download PDFInfo
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- KR20000040205A KR20000040205A KR1019980055776A KR19980055776A KR20000040205A KR 20000040205 A KR20000040205 A KR 20000040205A KR 1019980055776 A KR1019980055776 A KR 1019980055776A KR 19980055776 A KR19980055776 A KR 19980055776A KR 20000040205 A KR20000040205 A KR 20000040205A
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- screen
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- picture data
- slow
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- 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
- H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen
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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
- H04N5/91—Television signal processing therefor
- H04N5/93—Regeneration of the television signal or of selected parts thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/015—High-definition television systems
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Studio Circuits (AREA)
Abstract
Description
본 발명은 디지털TV(DTV;digital television) 및 유럽향 디지털TV(DTTV;digital terrestrial television)에 관한 것으로, 특히, 사용자가 원하는 화면을 PIP의 부화면을 통해 느린화면으로 볼 수 있도록 하는 디지털방송수신기에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to digital television (DTV) and digital terrestrial television (DTTV). In particular, a digital broadcast receiver for allowing a user to view a desired screen as a slow screen through a sub-picture of a PIP. It is about.
MPEGⅡ를 사용하는 종래의 디지털 TV는 하나의 화면을 구성하기 위해 I픽쳐, P픽쳐, B픽쳐의 3개를 사용한다. 부호화되어 입력되는 I, B 및 P픽쳐데이터를 메모리에 저장하여 이를 복호화하여 하나의 화면을 구성하는데, 사용자가 특정화면을 다시보기 원한다면, 메모리에 저장된 픽쳐데이터들로부터 원하는 화면을 재생하여 다시 볼 수 있었다.Conventional digital TVs using MPEG II use three I-pictures, P-pictures, and B-pictures to form one picture. I, B and P coded data are stored in memory and decoded to form a single screen. If the user wants to see a specific screen again, the user can play back the desired screen from the picture data stored in the memory. there was.
하지만, 위와 같은 특성 조정을 하는 데 있어서 사용자가 다시보기를 원하는 화면을 메모리에서 독출하여 재생하므로 시간이 많이 소비되는 단점이 있었다.However, in adjusting the above characteristics, the screen which the user wants to view again is read out from the memory and played back, which causes a lot of time.
따라서, 본 발명의 목적은 전술한 문제점을 해결할 수 있도록 사용자가 다시보기 원하는 화면을 구성하기 위해 I픽쳐만을 별도 메모리에 저장하여 느린화면으로 PIP의 부화면을 통해 구현할 수 있는 디지털방송수신기를 제공함에 있다.Accordingly, an object of the present invention is to provide a digital broadcast receiver that can be implemented through the sub-screen of the PIP by storing only the I picture in a separate memory to configure the screen that the user wants to view again to solve the above-mentioned problems. have.
도 1은 본 발명에 따른 느린화면을 구현하는 디지털방송수신기를 설명하기 위한 블록도,1 is a block diagram illustrating a digital broadcast receiver for implementing a slow screen according to the present invention;
도 2는 도 1 제어부의 제어흐름도.FIG. 2 is a control flowchart of the controller of FIG. 1. FIG.
※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing
11 : 튜너 12 : 디멀티플렉서(demultiplexor)11 tuner 12 demultiplexor
13 : MPEGⅡ신호처리부 14 : 제 1픽쳐저장부13 MPEG II Signal Processing Unit 14 First Picture Storage Unit
15 : 제 2픽쳐저장부 16 : 음성출력부15: second picture storage unit 16: audio output unit
17 : 영상출력부 18 : 제어부17: image output unit 18: control unit
19 : 키입력부19: key input unit
이와 같은 목적을 달성하기 위한 본 발명에 따른 느린화면을 구현하는 디지털방송수신기는 느린화면키신호를 입력하기 위한 키입력부와, 입력되는 TS스트림에서 비디오, 오디오 및 데이터스트림을 분리하여 출력하는 신호분리부와, 제 1저장부와, 제 2저장부와, 신호분리부로부터의 비디오스트림을 제 1저장부에 저장한후 이를 복원한 I, B 및 P픽쳐데이터를 화면출력가능하도록 신호처리하고, 복원된 데이터중 I픽쳐데이터를 느린화면으로 출력가능하도록 신호처리하는 신호처리부 및 키입력부로부터 느린화면키신호가 인가된 경우, 신호처리부에서 복원한 I, B 및 P픽쳐데이터를 PIP의 하나의 화면으로 출력하도록 제어하고, 복원된 픽쳐데이터들중 I픽쳐데이터만을 제 2저장부에 저장한후 이를 느린화면으로 PIP의 나머지 화면에 출력하도록 제어하는 제어부를 포함한다.Digital broadcast receiver for implementing a slow screen according to the present invention for achieving the above object is a key input unit for inputting a slow screen key signal, and signal separation for separating and outputting video, audio and data stream from the input TS stream Storing the video streams from the first and second storage units, the second storage unit, and the signal separation unit in the first storage unit, and performing signal processing to restore the I, B, and P picture data which are restored. When a slow screen key signal is applied from a signal processing unit and a key input unit for signal processing to output the I picture data among the generated data on a slow screen, the I, B and P picture data restored by the signal processing unit are transferred to one screen of the PIP. Outputting and storing only the I picture data of the restored picture data in the second storage unit and controlling the output to the remaining screen of the PIP as a slow screen. And a fisherman.
이하, 첨부한 도면들을 참조하여 본 발명의 바람직한 실시예를 상세히 기술하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명에 따른 느린화면을 구현하는 디지털방송수신기를 설명하기 위한 블록도이다. 도 1 장치는 방송신호를 입력받는 튜너(11), 튜너(11)에 연결된 디멀티플렉서(12), 디멀티플렉서(12)로부터 분리된 오디오 및 비디오스트림을 입력받아 화면출력가능 하도록 신호처리하는 MPEGⅡ신호처리부(13), 음성출력부(16) 및 영상출력부(17)를 구비한다. 도 1장치는 또한, MPEGⅡ신호처리부(13)에 연결되며, I, B 및 P픽쳐스트림을 저장하는 제 1픽쳐저장부(14)와, 복원된 I픽쳐데이터를 저장하는 제 2픽쳐저장부(15)를 구비하며, 키입력부(19)로부터 키입력을 받아 각 구성을 제어하는 제어부(18)를 구비한다.1 is a block diagram illustrating a digital broadcast receiver for implementing a slow screen according to the present invention. 1 is a MPEG II signal processing unit for receiving a broadcast signal and processing a signal to receive and output the audio and video streams separated from the tuner 11, the demultiplexer 12 connected to the tuner 11, the demultiplexer 12 ( 13), an audio output unit 16 and an image output unit 17 are provided. The apparatus of Fig. 1 is also connected to the MPEGII signal processing section 13, and includes a first picture storage section 14 for storing I, B and P picture streams, and a second picture storage section for storing reconstructed I picture data ( 15), and a control unit 18 for receiving a key input from the key input unit 19 to control each configuration.
이와 같이 구성된 본 발명에 따른 느린화면을 구현하는 디지털방송수신기의 동작을 도 2를 참조하여 설명한다.The operation of the digital broadcast receiver for implementing the slow screen according to the present invention configured as described above will be described with reference to FIG.
사용자가 텔레비젼으로 야구를 시청하고 있는 경우, 제어부(18)의 제어에 따라 튜닝되는 튜너(11)는 방송신호를 선국하여 선국된 채널의 방송신호로부터 트랜스포트스트림(Transport stream:TS)을 검출하며, 검출된 TS스트림을 디멀티플렉서(12)로 출력한다. 디멀티플렉서(12)는 입력되는 TS스트림을 비디오, 오디오 및 데이터스트림으로 분리하여 비디오 및 오디오스트림을 MPEGⅡ신호처리부(13)로 출력한다. MPEGⅡ신호처리부(13)는 분리된 비디오 및 오디오스트림을 입력받아 출력가능하도록 신호처리하여 음성출력부(16)와 영상출력부(17)로 출력한다. 영상출력을 위해서, MPEGⅡ신호처리부(13)는 입력되는 비디오스트림을 제 1픽쳐저장부(14)에 저장하고, 화면을 구성하기 위해 필요한 픽쳐스트림들을 복원하여 I, B 및 P픽쳐데이터를 생성한다. 이렇게 하여 생성된 I, B 및 P픽쳐데이터를 이용하여 하나의 화면으로 조합한 영상데이터를 영상출력부(17)로 출력한다. 따라서, 사용자는 야구중계를 화면으로 시청할 수 있다.When the user is watching baseball on television, the tuner 11 tuned under the control of the controller 18 tunes the broadcast signal to detect a transport stream (TS) from the broadcast signal of the tuned channel. The detected TS stream is output to the demultiplexer 12. The demultiplexer 12 separates the input TS stream into video, audio, and data streams, and outputs the video and audio streams to the MPEG II signal processor 13. The MPEG II signal processing unit 13 receives the separated video and audio streams and processes the signal so as to be outputted to the audio output unit 16 and the image output unit 17. For video output, the MPEG II signal processing unit 13 stores the input video stream in the first picture storage unit 14, and reconstructs the picture streams necessary for composing the screen to generate I, B, and P picture data. . By using the generated I, B and P picture data, the image data combined into one screen is output to the image output unit 17. FIG. Therefore, the user can watch the baseball relay on the screen.
사용자가 야구중계 시청중에 투수의 투구장면을 느린화면으로 보기 위하여 키입력부(19)의 느린화면키를 입력하는 경우, 제어부(18)는 느린화면키가 입력되었는지를 판단한다(단계 201). 제어부(18)는 느린화면키가 입력된 경우, MPEGⅡ신호처리부(13)에서 복원하는 픽쳐데이터들중 I픽쳐데이터만을 추출하여 일정분량(약 3초)만큼 제 2픽쳐저장부(15)로 출력하도록 제어한다. 제 2픽쳐저장부(15)는 제어부(18)의 제어에 따라 입력되는 I픽쳐데이터를 일정분량만큼 저장한다(단계 202). 그런 다음, 제어부(18)의 제어를 받아 MPEGⅡ신호처리부(13)는 제 2픽쳐저장부(15)에 저장된 I픽쳐데이터를 부화면을 통해 느린화면으로 구성한 영상데이터를 영상출력부(17)로 출력한다. 영상출력부(17)는 현재의 야구중계화면을 주화면으로하여 부화면에 투수의 투구장면을 느린화면으로 출력한다(단계 203). 제어부(18)는 제 2픽쳐저장부(15)에 저장된 I픽쳐데이터의 잔여량을 계속 체크한다(단계 204). 체크결과, 더 이상 저장된 I픽쳐데이터가 없으면, 주화면만 화면출력하도록 한다(단계 205). 따라서, 사용자는 주화면으로 야구중계를 보면서 동시에 부화면으로 투수의 투구장면을 느린화면으로 볼 수 있다.When the user inputs the slow screen key of the key input unit 19 to view the pitcher's pitching scene on the slow screen while watching the baseball relay, the controller 18 determines whether the slow screen key is input (step 201). When a slow picture key is input, the controller 18 extracts only the I picture data from the picture data reconstructed by the MPEG II signal processor 13 and outputs it to the second picture storage unit 15 by a predetermined amount (about 3 seconds). To control. The second picture storage unit 15 stores the input I picture data by a predetermined amount under the control of the controller 18 (step 202). Then, under the control of the control unit 18, the MPEG II signal processing unit 13 transfers the I-data data stored in the second picture storage unit 15 to the video output unit 17 through a sub-picture. Output The video output unit 17 outputs the pitcher's pitching scene to the sub-screen on the sub-screen, with the current baseball relay screen as the main screen (step 203). The control unit 18 continuously checks the remaining amount of I picture data stored in the second picture storage unit 15 (step 204). If there is no stored I picture data as a result of the check, only the main screen is outputted (step 205). Therefore, the user can watch the baseball relay on the main screen and at the same time view the pitching pitch of the pitcher on the sub screen on a slow screen.
전술한 실시예에서는 야구중계를 주화면에 투구장면의 느린화면을 부화면에 구현하는 것으로 설명하였으나, 반대의 경우도 구현 가능함은 당해 분야의 기술자라면 용이실시하게 구현할 수 있음은 자명하다.In the above-described embodiment, the baseball relay is described as implementing the slow screen of the pitching scene on the sub-screen, but the reverse may be embodied by those skilled in the art.
상술한 바와 같이, 본 발명은 텔레비젼 시청중에 원하는 장면을 느린화면으로 부화면에 시청할 수 있는 효과를 제공한다.As described above, the present invention provides an effect that a desired scene can be watched on a sub picture in a slow picture while watching television.
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KR1019980055776A KR20000040205A (en) | 1998-12-17 | 1998-12-17 | Digital broadcast receiver performing slow display |
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KR1019980055776A KR20000040205A (en) | 1998-12-17 | 1998-12-17 | Digital broadcast receiver performing slow display |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20030025602A (en) * | 2001-09-21 | 2003-03-29 | (주)프리샛 코리아 | Digital Audio brodcasting Receiver having a function of receiving moving image |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20030025602A (en) * | 2001-09-21 | 2003-03-29 | (주)프리샛 코리아 | Digital Audio brodcasting Receiver having a function of receiving moving image |
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