KR100327201B1 - Method and apparatus for sending/receiving image signal - Google Patents
Method and apparatus for sending/receiving image signal Download PDFInfo
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- KR100327201B1 KR100327201B1 KR1019980007633A KR19980007633A KR100327201B1 KR 100327201 B1 KR100327201 B1 KR 100327201B1 KR 1019980007633 A KR1019980007633 A KR 1019980007633A KR 19980007633 A KR19980007633 A KR 19980007633A KR 100327201 B1 KR100327201 B1 KR 100327201B1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
- H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394
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- Optical Communication System (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
본 발명에 따른 화상 신호 송수신 방법은, 컴퓨터 내의 중앙처리소자의 제어에 따라, 복수의 디지털 화상 신호들을 형성하는 단계를 포함한다. 형성된 각각의 디지털 화상 신호는 광신호로 변환된다. 변환된 각각의 광신호는 광케이블을 통하여 상응하는 평판 모니터의 위치로 전송된다. 전송된 각각의 광신호는 디지털 화상 신호로 변환된다. 변환된 각각의 디지털 화상 신호는 상응하는 평판 모니터에 입력된다.An image signal transmission and reception method according to the present invention includes forming a plurality of digital image signals under the control of a central processing element in a computer. Each digital image signal formed is converted into an optical signal. Each converted optical signal is transmitted via the optical cable to the position of the corresponding flat panel monitor. Each transmitted optical signal is converted into a digital image signal. Each converted digital image signal is input to a corresponding flat panel monitor.
Description
본 발명은 화상 신호 송수신 방법 및 장치에 관한 것으로서, 보다 상세하게는, 컴퓨터로부터의 디지털 화상 신호를 처리하여 복수의 평판 모니터들에 입력시키는 화상 신호 송수신 방법 및 장치에 관한 것이다.The present invention relates to a method and apparatus for transmitting and receiving image signals, and more particularly, to a method and apparatus for transmitting and receiving image signals for processing digital image signals from a computer and inputting the same to a plurality of flat panel monitors.
종래의 컴퓨터에서 각 평판 모니터로 출력되는 화상 신호는, 다수의 채널들로 된 유선 케이블을 통하여 각 평판 모니터에 직접 입력된다. 이와 같은 신호 송수신 방법은 컴퓨터와 평판 모니터들이 서로 가깝게 위치한 경우에 적합하다. 그러나 서로 멀리 위치한 경우, 각 전송 케이블의 라인 저항으로 인하여 전송중인 신호에 전압 강하가 발생되어, 송수신 성능 및 효율이 떨어진다.The image signal output to each flat panel monitor in a conventional computer is directly input to each flat panel monitor through a wired cable of a plurality of channels. This signal transmission and reception method is suitable when the computer and the flat panel monitor are located close to each other. However, when they are located far from each other, the line resistance of each transmission cable causes a voltage drop in the signal being transmitted, thereby reducing transmission and reception performance and efficiency.
본 발명이 이루고자 하는 목적은, 컴퓨터와 평판 모니터들이 서로 멀리 위치한 경우에 적합한 화상 신호 송수신 방법 및 장치를 제공하는 것이다.It is an object of the present invention to provide a method and apparatus for transmitting and receiving image signals suitable for a case where a computer and a flat panel monitor are located far from each other.
도 1은 본 발명의 일 실시예에 따른 화상 신호 송수신 장치를 보여주는 블록도이다.1 is a block diagram showing an image signal transmission and reception apparatus according to an embodiment of the present invention.
도 2는 도 1의 장치의 화상 제어부의 일 실시예를 보여주는 내부 블록도이다.2 is an internal block diagram showing an embodiment of the image control unit of the apparatus of FIG.
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
1...중앙처리소자,2...화상 제어부,1 central processing element, 2 image control,
3...광신호 발생부, 4...광케이블들,3, optical signal generator, 4, optical cables,
5...광다이오드 어레이부,6...증폭부.5 photodiode array section, 6 amplification section.
상기 목적을 이루기 위한 본 발명의 화상 신호 송수신 방법은, 컴퓨터 내의 중앙처리소자의 제어에 따라, 복수의 디지털 화상 신호들을 형성하는 단계를 포함한다. 형성된 각각의 디지털 화상 신호는 광신호로 변환된다. 변환된 각각의 광신호는 광케이블을 통하여 상응하는 평판 모니터의 위치로 전송된다. 전송된 각각의 광신호는 디지털 화상 신호로 변환된다. 변환된 각각의 디지털 화상 신호는 상응하는 평판 모니터에 입력된다.The image signal transmission and reception method of the present invention for achieving the above object comprises the step of forming a plurality of digital image signals, under the control of a central processing element in the computer. Each digital image signal formed is converted into an optical signal. Each converted optical signal is transmitted via the optical cable to the position of the corresponding flat panel monitor. Each transmitted optical signal is converted into a digital image signal. Each converted digital image signal is input to a corresponding flat panel monitor.
또한, 상기 목적을 이루기 위한 본 발명의 화상 신호 송수신 장치는 화상 제어부, 광신호 발생부, 광케이블들 및 광 검출부를 포함한다. 상기 화상 제어부는, 컴퓨터 내에서 복수의 디지털 화상 신호들을 형성한다. 상기 광신호 발생부는, 상기 화상 제어부로부터의 각각의 디지털 화상 신호를 광신호로 변환시킨다. 상기 광케이블들은, 상기 광신호 발생부로부터의 각각의 광신호를 상응하는 평판 모니터의 위치로 전송하기 위하여 마련된다. 상기 광 검출부는, 상기 광케이블들을 통하여 전송된 각각의 광신호를 디지털 화상 신호로 변환시켜, 상응하는 평판 모니터에 입력시킨다.In addition, the image signal transmission and reception apparatus of the present invention for achieving the above object includes an image control unit, an optical signal generating unit, optical cables and light detecting unit. The image control unit forms a plurality of digital image signals in a computer. The optical signal generation unit converts each digital image signal from the image control unit into an optical signal. The optical cables are provided for transmitting each optical signal from the optical signal generator to the position of the corresponding flat panel monitor. The optical detector converts each optical signal transmitted through the optical cables into a digital image signal and inputs the same to the corresponding flat panel monitor.
본 발명의 상기 화상 신호 송수신 방법 및 장치는, 각각의 디지털 화상 신호가 변환된 광신호가 상응하는 평판 모니터에 전송되게 하는 것이므로, 컴퓨터와 평판 모니터들이 서로 멀리 위치한 경우에도 각 전송 케이블의 라인 저항으로 인한 전압 강하를 최소화하여 송수신 성능 및 효율을 높일 수 있다.The method and apparatus for transmitting and receiving image signals of the present invention allow the optical signals converted by the respective digital image signals to be transmitted to the corresponding flat panel monitors. The voltage drop can be minimized to increase the transmission and reception performance and efficiency.
이하, 본 발명에 따른 바람직한 실시예를 상세히 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail.
도 1은 본 발명에 따른 화상 신호 송수신 방법에 의한 장치를 보여준다. 도 2는 도 1의 장치의 화상 제어부의 일 실시예를 보여준다.1 shows an apparatus by a method for transmitting and receiving image signals according to the present invention. 2 shows an embodiment of an image control unit of the apparatus of FIG. 1.
도 1 및 2를 참조하면, 본 발명에 따른 화상 신호 송수신 장치는 화상 제어부(2), 광신호 발생부(3), 광케이블들(4), 광 검출부로서의 광다이오드 어레이(Photo-Diode Array)부(5) 및 증폭부(6)를 포함한다.1 and 2, an image signal transmitting and receiving apparatus according to the present invention includes an image control unit 2, an optical signal generator 3, optical cables 4, and a photo-diode array unit as an optical detector. (5) and amplifying section (6).
화상 제어소자(21) 및 아답터(22)로 구성된 화상 제어부(2)는, 컴퓨터 내에서 복수의 디지털 화상 신호들을 형성한다.The image control unit 2 composed of the image control element 21 and the adapter 22 forms a plurality of digital image signals in a computer.
화상 제어소자(21)는, 컴퓨터 내의 중앙처리소자(1)의 제어에 따라 한 디지털 화상 신호를 형성한다. 여기서, 화상 제어소자(21)로부터 아답터(22)에 입력되는 단위 디지털 화상 신호는 8 비트의 병렬 디지털 적색 영상신호, 8 비트의 병렬 디지털 녹색 영상신호, 8 비트의 병렬 디지털 청색 영상신호, 수평 동기신호, 수직 동기신호 및 데이터 인에이블 신호를 포함한다. 화상 제어부(2)는 화상 제어소자(21) 및 아답터(22)를 포함한다.The image control element 21 forms a digital image signal under the control of the central processing element 1 in the computer. Here, the unit digital image signal input from the image control element 21 to the adapter 22 is an 8-bit parallel digital red video signal, an 8-bit parallel digital green video signal, an 8-bit parallel digital blue video signal, and horizontal synchronization. Signal, a vertical synchronization signal, and a data enable signal. The image control unit 2 includes an image control element 21 and an adapter 22.
아답터(21)는, 화상 제어소자(21)로부터의 디지털 화상 신호를 분기하기 위하여 마련된다. 이에 따라, 화상 제어소자(21)로부터의 디지털 화상 신호는 아답터(22)를 통하여 광신호 발생부(3)의 각 포트에 입력된다. 즉, 화상 제어부(2)의 아답터(22)로부터 출력되는 제1 디지털 화상 신호는 광신호 발생부(3)의 제1 레이저 구동부에, 그리고 제n 디지털 화상 신호는 광신호 발생부(3)의 제n 레이저 구동부에 각각 입력된다.The adapter 21 is provided for branching the digital image signal from the image control element 21. Accordingly, the digital image signal from the image control element 21 is input to each port of the optical signal generator 3 via the adapter 22. That is, the first digital image signal output from the adapter 22 of the image control unit 2 is in the first laser drive unit of the optical signal generator 3, and the nth digital image signal is in the optical signal generator 3. Input to the nth laser drive unit, respectively.
광신호 발생부(3)는, 화상 제어부(2)로부터의 각각의 디지털 화상 신호를 광신호로 변환시킨다. 광신호 발생부(3)는 레이저 구동부(31) 및 레이저광 발생부로서의 레이저 다이오드 어레이(Laser Diode Array)부(32)를 포함한다. 레이저 구동부(31)는 화상 제어부(2)로부터의 각각의 디지털 화상 신호에 상응하는 구동 신호를 발생시킨다. 예를 들어, 19 비트의 디지털 화상 신호는 각각의 레이저 구동부를 통하여 19 비트의 증폭된 구동 신호로 변환되어, 레이저 다이오드 어레이부(32)의 상응하는 레이저 다이오드 어레이에 입력된다. 레이저 다이오드 어레이부(32)의 각각의 어레이는, 레이저 구동부(31)로부터의 구동 신호에 의하여 레이저 광신호를 발생시킨다. 예를 들어, 어느 한 시점에서 어느 한 비트의 신호가 높은 논리 상태이면 상응하는 레이저 다이오드가 발광(發光)하고, 그렇지 않으면 발광하지 않는다.The optical signal generation unit 3 converts each digital image signal from the image control unit 2 into an optical signal. The optical signal generator 3 includes a laser driver 31 and a laser diode array 32 as a laser light generator. The laser driver 31 generates a drive signal corresponding to each digital image signal from the image control unit 2. For example, a 19 bit digital image signal is converted into a 19 bit amplified drive signal through each laser driver and input to a corresponding laser diode array of the laser diode array unit 32. Each array of the laser diode array units 32 generates a laser optical signal in response to a drive signal from the laser driver 31. For example, at any point in time, if either bit of the signal is in a high logic state, the corresponding laser diode emits light, otherwise it does not emit light.
레이저 다이오드 어레이부(32)로부터의 각각의 광신호는 광케이블들(4)을 통하여 상응하는 평판 모니터(7)의 위치로 전송된다. 예를 들어, 19 비트의 디지털 화상 신호가 각각의 레이저 구동부에 입력되는 경우, 하나의 광케이블에는 19 채널의 광섬유 라인들이 내장된다.Each optical signal from the laser diode array portion 32 is transmitted via the optical cables 4 to the position of the corresponding flat panel monitor 7. For example, when a 19-bit digital image signal is input to each laser driver, 19 optical fiber lines are embedded in one optical cable.
위와 같이, 각각의 디지털 화상 신호가 변환된 광신호가 광케이블들(4)을 통하여 상응하는 평판 모니터(7)에 전송되므로, 컴퓨터와 평판 모니터들(7)이 서로 멀리 위치한 경우에도 각 전송 케이블의 라인 저항으로 인한 전압 강하를 최소화하여 송수신 성능 및 효율을 높일 수 있다.As described above, since the optical signal converted from each digital image signal is transmitted to the corresponding flat panel monitor 7 through the optical cables 4, even if the computer and the flat panel monitors 7 are located far from each other, the line of each transmission cable Minimize the voltage drop caused by the resistor to increase the transmission and reception performance and efficiency.
광다이오드 어레이부(5)는 광케이블들(4)을 통하여 전송된 각각의 광신호를 디지털 화상 신호로 변환시킨다. 예를 들어, 어느 한 시점에서 어느 한 광섬유 라인으로부터 빛이 발생되면 전기적으로 높은 논리 상태의 신호가 발생되고, 그렇지 않으면 전기적으로 낮은 논리 상태의 신호가 발생된다.The photodiode array unit 5 converts each optical signal transmitted through the optical cables 4 into a digital image signal. For example, at any point in time light from any one fiber line generates an electrically high logic signal, otherwise an electrically low signal is generated.
증폭부(6)는, 광다이오드 어레이부(5)로부터의 각각의 디지털 화상 신호를 소정의 증폭도로써 증폭시켜서 상응하는 평판 모니터(7)에 입력시킨다. 이에 따라 평판 모니터(7)는 정상적인 디스플레이를 수행할 수 있다.The amplifier 6 amplifies each digital image signal from the photodiode array unit 5 with a predetermined degree of amplification and inputs it to the corresponding flat panel monitor 7. Accordingly, the flat panel monitor 7 can perform normal display.
이상 설명된 바와 같이, 본 발명에 따른 화상 신호 송수신 방법 및 장치에 의하면, 각각의 디지털 화상 신호가 변환된 광신호가 광케이블들을 통하여 상응하는 평판 모니터에 전송되므로, 컴퓨터와 평판 모니터들이 서로 멀리 위치한 경우에도 각 전송 케이블의 라인 저항으로 인한 전압 강하를 최소화하여 송수신 성능 및 효율을 높일 수 있다.As described above, according to the image signal transmission and reception method and apparatus according to the present invention, since the optical signal converted from each digital image signal is transmitted to the corresponding flat panel monitor through optical cables, even when the computer and the flat panel monitors are located far from each other. The voltage drop caused by the line resistance of each transmission cable can be minimized to increase transmit and receive performance and efficiency.
본 발명은, 상기 실시예에 한정되지 않고, 당업자의 수준에서 그 변형 및 개량이 가능하다.The present invention is not limited to the above embodiments, and modifications and improvements are possible at the level of those skilled in the art.
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| KR (1) | KR100327201B1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100491441B1 (en) * | 2002-09-16 | 2005-05-25 | 엘지전자 주식회사 | Apparatus for restoring active signal and synchronizing signal |
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| US4961211A (en) * | 1987-06-30 | 1990-10-02 | Nec Corporation | Television conference system including many television monitors and method for controlling the same |
| JPH06224881A (en) * | 1993-01-25 | 1994-08-12 | Nippon Hoso Kyokai <Nhk> | Optical transmission system and transceiver of optical transmission system |
| JPH06296210A (en) * | 1993-02-10 | 1994-10-21 | Ricoh Co Ltd | Telewriting device and communication control method for still picture conference equipment |
| JPH07240912A (en) * | 1994-02-28 | 1995-09-12 | Matsushita Electric Ind Co Ltd | Optical CATV transmission device |
| JPH0818156A (en) * | 1994-07-05 | 1996-01-19 | Fujitsu Ltd | Semiconductor light emitting device |
| JPH0837516A (en) * | 1994-07-22 | 1996-02-06 | G C Technol Kk | Catv system |
| JPH08181656A (en) * | 1994-12-22 | 1996-07-12 | Kokusai Denshin Denwa Co Ltd <Kdd> | Optical wavelength division multiplexing transmission line monitoring device |
| JPH08336127A (en) * | 1995-06-06 | 1996-12-17 | Fujitsu Ltd | Video on demand system |
| JPH10271472A (en) * | 1997-03-24 | 1998-10-09 | Kyocera Corp | Multipoint communication system |
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- 1998-03-07 KR KR1019980007633A patent/KR100327201B1/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4961211A (en) * | 1987-06-30 | 1990-10-02 | Nec Corporation | Television conference system including many television monitors and method for controlling the same |
| JPH06224881A (en) * | 1993-01-25 | 1994-08-12 | Nippon Hoso Kyokai <Nhk> | Optical transmission system and transceiver of optical transmission system |
| JPH06296210A (en) * | 1993-02-10 | 1994-10-21 | Ricoh Co Ltd | Telewriting device and communication control method for still picture conference equipment |
| JPH07240912A (en) * | 1994-02-28 | 1995-09-12 | Matsushita Electric Ind Co Ltd | Optical CATV transmission device |
| JPH0818156A (en) * | 1994-07-05 | 1996-01-19 | Fujitsu Ltd | Semiconductor light emitting device |
| JPH0837516A (en) * | 1994-07-22 | 1996-02-06 | G C Technol Kk | Catv system |
| JPH08181656A (en) * | 1994-12-22 | 1996-07-12 | Kokusai Denshin Denwa Co Ltd <Kdd> | Optical wavelength division multiplexing transmission line monitoring device |
| JPH08336127A (en) * | 1995-06-06 | 1996-12-17 | Fujitsu Ltd | Video on demand system |
| JPH10271472A (en) * | 1997-03-24 | 1998-10-09 | Kyocera Corp | Multipoint communication system |
Also Published As
| Publication number | Publication date |
|---|---|
| KR19990074201A (en) | 1999-10-05 |
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