KR20070096795A - 전력선을 이용한 영상신호의 송,수신회로 - Google Patents
전력선을 이용한 영상신호의 송,수신회로 Download PDFInfo
- Publication number
- KR20070096795A KR20070096795A KR1020070014157A KR20070014157A KR20070096795A KR 20070096795 A KR20070096795 A KR 20070096795A KR 1020070014157 A KR1020070014157 A KR 1020070014157A KR 20070014157 A KR20070014157 A KR 20070014157A KR 20070096795 A KR20070096795 A KR 20070096795A
- Authority
- KR
- South Korea
- Prior art keywords
- video signal
- power
- power line
- transformer
- image signal
- Prior art date
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
- H04N7/108—Adaptations for transmission by electrical cable the cable being constituted by a pair of wires
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/34—Networks for connecting several sources or loads working on different frequencies or frequency bands, to a common load or source
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/546—Combination of signalling, telemetering, protection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00095—Systems or arrangements for the transmission of the picture signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
- H04N1/00347—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with another still picture apparatus, e.g. hybrid still picture apparatus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/21—Intermediate information storage
- H04N1/2104—Intermediate information storage for one or a few pictures
- H04N1/2112—Intermediate information storage for one or a few pictures using still video cameras
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5429—Applications for powerline communications
- H04B2203/545—Audio/video application, e.g. interphone
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2203/00—Indexing scheme relating to line transmission systems
- H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
- H04B2203/5429—Applications for powerline communications
- H04B2203/5458—Monitor sensor; Alarm systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2101/00—Still video cameras
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/0008—Connection or combination of a still picture apparatus with another apparatus
- H04N2201/0034—Details of the connection, e.g. connector, interface
- H04N2201/0037—Topological details of the connection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/0008—Connection or combination of a still picture apparatus with another apparatus
- H04N2201/0034—Details of the connection, e.g. connector, interface
- H04N2201/0048—Type of connection
- H04N2201/0049—By wire, cable or the like
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/0077—Types of the still picture apparatus
- H04N2201/0084—Digital still camera
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Closed-Circuit Television Systems (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Picture Signal Circuits (AREA)
- Details Of Television Systems (AREA)
- Studio Devices (AREA)
Abstract
Description
Claims (3)
- CCD 카메라(1)에 의해 촬영된 영상신호의 바이어스 전압을 조절하는 바이어스부(2)와,공급전원인 12V의 전원을 신호의 처리에 필요한 구동전원으로 변환하는 전압강하부(3)와,구동전원을 공급받으면서 상기의 바이어스부(2)를 경유한 영상신호를 광대역 증폭시키는 차동증폭부(4)와,상기의 차동증폭부(4)에 의해 광대역 증폭된 영상신호를 변조시키는 발진IC(5)와,상기의 발진IC(5)에 의해 변조된 영상신호를 교류의 영상신호로 변환하면서 내압 처리하면서 AC 전력선(10)으로 출력하는 트랜스부(6)들로 이루어진 송신회로(A)와;상기의 AC 전력선(10)을 통한 AC 전원을 필요한 동작전원으로 공급하는 정류부(11)와,상기의 AC 전력선(10)을 통하여 수신되는 교류의 영상신호에 대해 LC동조 주파수에 의해 교류의 영상신호를 유기하는 트랜스부(12)와,상기 교류의 영상신호에 대해 수신감도의 보정을 위하여 증폭하는 증폭부(13)와,상기의 증폭된 영상신호의 출력을 증폭하는 출력 증폭부(14)들로 이루어진 수신회로(B)들로 구성한 것을 특징으로 하는 전력선을 이용한 영상신호의 송,수신회로.
- 제 1 항에 있어서,상기의 송신회로는,CCD 카메라(1)에 의해 촬영된 영상신호의 바이어스전압을 조절하는 가변저항(VR1)과 콘덴서(C1)의 바이어스부(2)와,공급전원인 12V의 전원을 신호의 처리에 필요한 구동전원으로 변환하는 가변저항(VR2)과 저항(R1)의 전압강하부(3)와,상기의 바이어스부(2)를 경유한 영상신호를 광대역 증폭시키는 NPN트랜지스터(TR1)와 PNP트랜지스터(TR2)의 차동증폭부(4)와,상기의 차동증폭부(4)에 의해 광대역 증폭된 영상신호를 입력전원으로 하여 구동하면서 발진 주파수의 캐리어 주파수에 상기의 영상신호를 실어주면서 변조시키는 발진IC(5)와,상기의 발진IC(5)에 의해 변조된 영상신호가 트랜스(T1)의 1차측에 인가되는 상태에 의해 2차측에 유기된 교류의 영상신호에 대해 콘덴서(C2)에서 내압 처리하여 AC 전력선(10)으로 출력하는 트랜스부(6)들로 구성한 것을 특징으로 하는 전력선을 이용한 영상신호의 송,수신회로.
- 제 1 항에 있어서,상기의 수신회로는,상기의 AC 전력선(10)을 통한 AC 전원이 1차측에 유기되면 트랜스(T2)의 2차측에서 유기된 AC 전원에 대해 브릿지 다이오드(B1)와 콘덴서(C3)에서 정류하여 DC전원으로 공급하는 정류부(11)와,AC 전력선(10)을 통하여 수신되는 교류의 영상신호가 콘덴서(C4)를 거쳐 트랜스(T3)의 1차측에 유기되면 2차측에서 트랜스의 인덕던스와 콘덴서(C5) 및 가변 콘덴서(VC)에 의한 LC동조 주파수에 의하여 2차측에 교류의 영상신호가 유기되도록 하는 트랜스부(12)와,상기 교류의 영상신호에 대해 증폭기(OP1)(OP2)에 의해 2단 증폭하는 중에 수신감도의 보정을 위하여 증폭하는 증폭부(13)와,상기의 증폭된 영상신호에 대해 선로를 통해 모니터로 출력하기 위해 증폭기(OP3)를 통해 증폭하는 출력 증폭부(14)들로 구성한 것을 특징으로 하는 전력선을 이용한 영상신호의 송,수신회로.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009502661A JP2009531938A (ja) | 2006-03-24 | 2007-03-23 | 電力線を用いた映像信号の送受信回路 |
US12/294,230 US8453184B2 (en) | 2006-03-24 | 2007-03-23 | Circuit for transmitting/receiving video signal using power line |
PCT/KR2007/001418 WO2007111441A1 (en) | 2006-03-24 | 2007-03-23 | Circuit for transmitting/receiving video signal using power line |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20060026755 | 2006-03-24 | ||
KR1020060026755 | 2006-03-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20070096795A true KR20070096795A (ko) | 2007-10-02 |
KR100850042B1 KR100850042B1 (ko) | 2008-08-04 |
Family
ID=38803544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020070014157A KR100850042B1 (ko) | 2006-03-24 | 2007-02-12 | 전력선을 이용한 영상신호의 송,수신회로 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8453184B2 (ko) |
JP (1) | JP2009531938A (ko) |
KR (1) | KR100850042B1 (ko) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4745391A (en) * | 1987-02-26 | 1988-05-17 | General Electric Company | Method of, and apparatus for, information communication via a power line conductor |
US4980665A (en) * | 1987-05-22 | 1990-12-25 | Recoton Corporation | Remote control repeater |
US5625863A (en) * | 1989-04-28 | 1997-04-29 | Videocom, Inc. | Video distribution system using in-wall wiring |
US5712614A (en) * | 1995-05-09 | 1998-01-27 | Elcom Technologies Corporation | Power line communications system |
JPH11234180A (ja) * | 1998-02-13 | 1999-08-27 | Sony Corp | 電灯線通信システム及び電灯線通信装置 |
KR20000032364A (ko) | 1998-11-13 | 2000-06-15 | 황한규 | 공기조화기의 송풍덕트 |
AU2001277787A1 (en) * | 2000-08-04 | 2002-02-18 | Exscoms Ltd. | Communication system and communication method using power lines |
KR100446931B1 (ko) * | 2002-04-30 | 2004-09-04 | 주식회사 두노시스템 | 전력선통신용 어뎁터 |
US7205894B1 (en) * | 2004-06-22 | 2007-04-17 | Savage Paul A | Missing golf club reminder and wireless golf bag alarm system |
-
2007
- 2007-02-12 KR KR1020070014157A patent/KR100850042B1/ko active IP Right Grant
- 2007-03-23 JP JP2009502661A patent/JP2009531938A/ja active Pending
- 2007-03-23 US US12/294,230 patent/US8453184B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2009531938A (ja) | 2009-09-03 |
US8453184B2 (en) | 2013-05-28 |
KR100850042B1 (ko) | 2008-08-04 |
US20090316052A1 (en) | 2009-12-24 |
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