CN101931466A - Method for extending HDMI or DVI interface connection at ultra-long distance by using five optical fibers - Google Patents
Method for extending HDMI or DVI interface connection at ultra-long distance by using five optical fibers Download PDFInfo
- Publication number
- CN101931466A CN101931466A CN2009100627500A CN200910062750A CN101931466A CN 101931466 A CN101931466 A CN 101931466A CN 2009100627500 A CN2009100627500 A CN 2009100627500A CN 200910062750 A CN200910062750 A CN 200910062750A CN 101931466 A CN101931466 A CN 101931466A
- Authority
- CN
- China
- Prior art keywords
- hdmi
- signal
- transmitter
- receiver
- dvi interface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Optical Communication System (AREA)
Abstract
The invention relates to a method for greatly improving HDMI or DVI interface connection distance, in particular to the method for extending the HDMI or DVI interface connection distance by using five optical fibers. Both a video source and a display are provided with an HDMI or DVI interface. The method is characterized in that: a transmitter converts four channels of TMDS signals output from the HDMI or DVI interface of the video source into four channels of optical signals; a microcontroller receives the optical signals transmitted back from a receiver through a switching circuit, and restores the EDID information and a CED signal of the display for the video source to read; the transmitter is connected to the receiver through the five optical fibers; the receiver converts the four channels of the optical signals into original TMDS signals and outputs the original TMDS signals to the display; an internal microcontroller reads the EDID information and the CEC signal of the display, converts the EDID information and the CEC signal into the optical signals and transmits the optical signals to the transmitter. The transmission distance of the optical signals is much longer than that of electrical signals without environmental disturbance; and the difficult problem of reading the EDID information and the CEC signal of the display by the video source at ultra-long distance is also solved. The method has the characteristics of long transmission distance, good transmission quality and low cost.
Description
Technical field
The present invention relates to the method that a kind of HDMI of increasing substantially or DVI interface connect distance, especially relate to a kind of method that prolongs HDMI or DVI interface connection distance with five optical fibers.
Background technology
Fast-developing and progress along with the digital high-definition technology, various high definition audio/video source devices, for example, blue-ray DVD player, HD DVD player, PC, video game machine, top box of digital machine, and the dull and stereotyped liquid crystal of high definition display device such as high definition, high definition computer monitor etc. come into people's family life day by day, and brand-new digital high-definition epoch arrive comprehensively.
HDMI, English full name are High Definition Multimedia Interface, and Chinese is the abbreviation of HDMI (High Definition Multimedia Interface).In April, 2002, Hitachi, Panasonic, Philip, Sony, Thomson, Toshiba and Silicon Image seven companies constitute jointly the HDMI tissue.HDMI can transmit the HD video and the multichannel audio data of uncompressed high-qualityly, and the maximum data transmission speed is 5Gbps.Need not simultaneously to transmit advance capable D/A or mould/number conversion, can guarantee that the video-audio signal of first water transmits at signal.
HDMI not only can satisfy the resolution of at present high image quality 1080P, can also support state-of-the-art digital audio formats such as DVD Audio, support Eight-channel 96kHz or stereo 192kHz digital audio to transmit, and only connect, exempt the digital audio wiring with a HDMI line.The exceptional space that while HDMI standard is possessed can be applied in the audio frequency and video form of upgrading in the future.Be enough to deal with the video of a 1080p and the audio signal of one 8 sound channel.And because the video of a 1080p and the audio signal demand of one 8 sound channel are less than 4GB/s, so HDMI also has very big surplus.This allows it to connect DVD player respectively with a cable, receiver and PRR.HDMI supports EDID, DDC2B in addition, and the equipment that therefore has HDMI has the characteristics of " plug and play ", can carry out " negotiation " automatically between signal source and the display device, selects only video/audio format automatically.The broadband digital content protection (HDCP) of can arranging in pairs or groups simultaneously of HDMI specification is suffered unwarranted duplicating to prevent the video content with copyright.
DVI (Digital Visual Interface): be by in September, 1998, the numeral of setting up on the Intel Developers Forum shows the technology of a kind of high-speed transfer digital signal of work group's (Digital Display Working Group is called for short DDWG) invention.DVI is based on TMDS (Transition Minimized Differential Signaling, conversion minimum differential signal) technology is come transmission of digital signals, the encryption algorithm of TMDS uses advanced is encoded to 10bit data (comprising capable field synchronization information, clock information, data DE, error correction etc.) to 8bit data (the every roadbed chrominance signal among R, G, the B) by minimum transition, after the DC balance, adopt the differential signal transmission data, it has compared Electro Magnetic Compatibility preferably with LVDS, TTL.
The application study on Digital Television, panel TV for HDMI or DVI interface, that more crucial is EDID (Extended Display Identification DATA, be expanded display recognition data) programming, the realization of HDCP (High-bandwidth Digital Content Protection) function.These all are whole new set of applications for Digital Television, have only EDID and HDCP after realizing on the Digital Television, and HDMI or DVI interface are only real Digital Television interface.
HDMI or DVI interface use HDMI or the DVI cable than high technology, the video/audio signal of transmitting high speed and display EDID, DDC2B information in than short distance at present.Along with the increase of HDMI or DVI cable transmission distance, the decay of high-speed electrical signals and signal quality all can sharply descend, and the manufacturing cost of cable sharply raise.Between HDMI or DVI cable transmission apart from weak point, cost is high and be subjected to the big characteristic of environmental interference, both a kind of method of utilizing laser transmission HDMI or DVI signal of the present invention, pass through conversion of signals, electrical signal conversion in HDMI or the DVI interface is become light signal, utilize Optical Fiber Transmission, thereby solve the transmission of the long distance of audio/video signal, EDID information and CEC signal between video source and the display.
Summary of the invention
Technical problems such as the present invention mainly solves the connection of prior art transmission HDMI or DVI interface apart from weak point, has various prolongation transmission meanss now, and transmission range is limited, and transmission quality is bad provide a kind of transmission range overlength, the technical solution that transmission quality is good.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: a kind of method that prolongs HDMI or DVI interface connection distance with the five optical fibers extra long distance, comprise video source and display, be equipped with HDMI or DVI interface on video source and the display, it is characterized in that described method is by transmitter original four road TMDS conversion of signals in HDMI on the video source or the DVI interface to be become four road light signals, give receiver by four Optical Fiber Transmission, and transmitter comprises a laser detector, it receives the light signal of beaming back from receiver by an other optical fiber, and convert thereof into Low Voltage Differential Signal, convert Low Voltage Differential Signal to the TTL signal by change-over circuit again and input to microcontroller, microcontroller translates display EDID information and the CEC signal that comprises in the TTL signal, and by the HDMI of video source or the SDA in the DVI interface, SCL, CEC, these 4 PIN of Hot Plug Detect, read for video source, microcontroller in the transmitter, control by Driver Control signal that No. four generating lasers send laser or do not send laser in the transmitter, so that allow the laser detector circuit of receiver whether successfully discern present transmitter reception passback light signal, after receiving successfully, microprocessor controls No. four generating laser circuit, beginning original TMDS conversion of signals is light signal.The transmission length of optical fiber is long more a lot of than HDMI or DVI cable, transmitter is connected to receiver by five optical fibers, receiver receives four road light signals and it is reduced into four road original TMDS signals, output to HDMI or the DVI interface is transferred to display, also comprise microcontroller in the receiver, by the HDMI interface of display or the SDA in the DVI interface, SCL, CEC, these 4 PIN of Hot Plug Detect, reading displayed device EDID information and CEC signal, and it is done serial process, and pass through change-over circuit, be converted into light signal, optical return signal after will changing by an other optical fiber passes to transmitter, microcontroller in the receiver, also monitor in the receiver Signal Detected signal in No. four laser detector circuit, thereby judging that transmitter receives the light signal that sends from receiver and whether receives success, is failure if the transmitter optical signal receives, and receiver resends EDID information and CEC signal.After sending the success of EDID information and CEC signal, microcontroller passes through display HDMI or DVI interface, real time monitoring CEC signal, and by change-over circuit, be light signal with the CEC conversion of signals, constantly feed back to transmitter.
As preferably, described transmitter becomes four road light signals with original four road TMDS conversion of signals of HDMI on the video source or DVI interface, give receiver by four Optical Fiber Transmission, and transmitter comprises a laser detector, it receives the light signal of beaming back from receiver by an other optical fiber, and convert thereof into Low Voltage Differential Signal, convert Low Voltage Differential Signal to the TTL signal by change-over circuit again and input to microcontroller, microcontroller translates display EDID information and the CEC signal that comprises in the TTL signal, reads for video source.
As preferably, described transmitter is connected to receiver by five optical fibers, receiver receives four road light signals and it is reduced into four road original TMDS signals, output to HDMI or DVI interface, also comprise microcontroller in the receiver, by the HDMI interface or the DVI interface of display, reading displayed device EDID information and CEC signal, the monitor information that reads is changed into light signal by change-over circuit, send it back transmitter by an other optical fiber.
As preferably, described transmitter is provided with electricity/light change-over circuit, and it can be four road light signals with the HDMI of video source or four tunnel original TMDS conversion of signals of DVI interface input, by four Optical Fiber Transmission to receiver.
As preferably, described receiver is provided with light/power conversion circuit, and it can come transmitter by four tunnel Optical Fiber Transmission light signal convert original TMDS signal to, outputs to the HDMI or the DVI interface of display.
As preferably, comprise a laser detector and change-over circuit in the described transmitter, the light signal that the conversion receiver is beamed back is a Low Voltage Differential Signal, and is converted to the TTL signal by change-over circuit, inputs to microcontroller.
As preferably, the microcontroller that comprises in the described transmitter, it receives the signal that laser detector receives, and be reduced to the EDID information and the CEC signal of display, HDMI by video source or SDA, SCL in the DVI interface, these 4 PIN of CEC, Hot Plug Detect read for video source.
As preferably, the microcontroller that comprises in the described transmitter, No. four generating lasers send laser or do not send laser in its control transmitter, so that allow the laser detector circuit of receiver discern the whether success of reception passback light signal of present transmitter, after receiving successfully, microprocessor controls No. four generating laser circuit, beginning original TMDS conversion of signals is light signal.
As preferably, comprise a microcontroller in the described receiver, it is by SDA, SCL, these 4 PIN of CEC, Hot Plug Detect in HDMI or the DVI interface, the EDID information of reading displayed device and CEC signal are also done serial process with it, and pass through change-over circuit, be converted into light signal, pass back to transmitter by an other optical fiber.
As preferably, the microcontroller that comprises in the described receiver, Signal Detected signal in No. four laser detector circuit in the supervision receiver, judge the state of transmitter receiving optical signals, thereby judge that transmitter receives the light signal that sends from receiver and whether receives success, if it is failure that the transmitter optical signal receives, receiver resends EDID information and CEC signal.
As preferably, the microcontroller that comprises in the described receiver is after sending the success of EDID information and CEC signal, by the HDMI or the DVI interface of display, real time monitoring CEC signal, and pass through change-over circuit, with the CEC conversion of signals is light signal, constantly is transferred to transmitter.
Beneficial effect of the present invention is to have realized that by five optical fibers extra long distance transmits high-frequency audio/vision signal and the control signal in HDMI or the DVI interface.Invention has proposed a kind of mini-plant that comes extra long distance prolongation HDMI or DVI signal by five optical fibers.The present invention can prolong the 1080P video transmission reliably by five optical fibers and surpass 1000 feet, and supports EDID, HDCP function.
Therefore, the present invention has following advantage:
(1) all adopt Optical Fiber Transmission between HDMI interface or the DVI interface, the transmission range overlength prolongs the 1080P video transmission reliably and surpasses 1000 feet, and supports EDID, HDCP function;
(2) all adopt optical signal transmission, transmission quality is good, and transmission signals is not subjected to the interference of external environment;
(3) video source is by transmitter and receiver, can be under the extra long distance transmission, and reading displayed device EDID information and CEC signal smoothly, having solved other prolongation schemes can not extra long distance passback EDID information and the technical barrier of CEC signal;
(4) transmitter and receiver volume are small and exquisite, easy for installation;
(5) video source and display are plugged transmitter and receiver respectively, connect five optical fibers after, just can operate as normal, need not artificial the setting or debugging, really accomplish the characteristics of plug and play.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present invention;
Accompanying drawing 2 is a kind of structural representations of transmitter of the present invention;
Accompanying drawing 7 is circuit diagrams of the reception passback light signal of microcontroller in the transmitter of the present invention;
Accompanying drawing 8 is a kind of structural representations of receiver of the present invention;
Accompanying drawing 9 is the circuit diagrams that in the receiver of the present invention light signal are reduced into the TMDS_0 signal;
Accompanying drawing 10 is the circuit diagrams that in the receiver of the present invention light signal are reduced into the TMDS_1 signal;
Accompanying drawing 12 is the circuit diagrams that in the receiver of the present invention light signal are reduced into the TMDS_CLK signal;
Accompanying drawing 13 is circuit diagrams of the transmission passback light signal of microcontroller in the receiver of the present invention;
Accompanying drawing 14 is main program workflow diagrams of microcontroller in the transmitter of the present invention;
Accompanying drawing 15 is main program workflow diagrams of microcontroller in the receiver of the present invention;
Specific implementation method
Below by embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment: HDMI interface in Fig. 1 on the video source 101 or DVI interface 102 are as the output interface of video source.Generally, video source 101 is video playback apparatus such as a blue-ray DVD player, HD DVD player, PC, video game machine, top box of digital machine.
Between the output port 102 of video source 101 and HDMI interface of this transmitter 105 or the DVI interface 104, be connected by an other short-range common HDMI cable or DVI cable 103, this cable 103 also can use HDMI to DVI conversion cable or DVI to HDMI conversion cable.
5 LC optical fiber interfaces 108 of receiver 109 are by 5 the LC optical fiber interfaces 106 corresponding connections of five optical fibers 107 with transmitter 105.Generally, five optical fibers is a multimode fiber.
Between the HDMI interface of display 113 or the HDMI interface of DVI interface 112 and receiver or the DVI interface 110, be connected by an other short-range common HDMI cable or DVI cable 111, this cable 111 also can use HDMI to DVI conversion cable or DVI to HDMI conversion cable.
In Fig. 2, described the major function piece of transmitter, this is the specific implementation of transmitter 105 among Fig. 1.
HDMI interface or DVI interface 201 are used for connecting HDMI or DVI cable, as HDMI cable among Fig. 1 or DVI cable 103.Four road TMDS signals of video source and control signal receive by this cable.
HDMI or DVI comprise four road TMDS (Transition Minimized Differential Signaling, transition minimized differential signaling) high speed signal and 4 control signals.Four road TMDS high speed signals that receiver receives from HDMI interface or DVI interface are TMDS_0, TMDS_1, TMDS_2, TMDS_CLK.Four tunnel control signals that are connected with video source are SCL, SDA, CEC, Hot Plug Detect.
202 is 4 laser driving chip, and 203 is 4 VCSEL generating lasers, and 202 and 203 finish the realization that four road TMDS high-speed electrical signals convert four road light signals to.4 Laser Drive IC receive TMDS_0 respectively, TMDS_1, TMDS_2, this four tunnel high-speed electrical signals of TMDS_CLK, and converting thereof into corresponding bias current and modulated current, bias current and modulated current drive VCSEL laser (TOSA) and send corresponding modulated light signal.4 VCSEL lasers are installed in the LC optical fiber interface 106 of transmitter 105, arrive receiver 109 by Optical Fiber Transmission.Generally, laser driver chip is MAX3996 (or other similar laser chip for driving), is part commonly used.VCSEL laser (TOSA) is 2.5Gbps speed, LC interface, straight mode VCSEL laser, is part commonly used.
206 is laser detectors (ROSA), it is installed in the LC optical fiber interface 106 of transmitter 105, by an optical fiber, receives from the light signal of receiver passback, and convert LVDS (Low Voltage DifferentialSignaling, low-voltage differential signal) to.Low Voltage Differential Signal receives the LVDS signal of laser detector (ROSA) output to TTL signaling conversion circuit 205, and converts the TTL signal to, is input to the receiving terminal of the USART serial bus of microcontroller 204.Microcontroller 20 4 is provided with the signal condition of EDID information, CEC and Hot Plug Detect on the I2C bus according to the TTL signal content that receives.Generally, laser detector (ROSA) the 206th, 2.5Gbps speed, LC interface, PIN-TIA laser detector are part commonly used.Low Voltage Differential Signal is high speed, low power consumption comparator MAX998 (or other similar chips) to TTL signaling conversion circuit 205, is part commonly used.Microcontroller is AVR single chip computer AT MEGA8L (or other similar single-chip microcomputers), possesses I2C bus and USART serial bus, is part commonly used.
Fig. 3 is in the transmitter 105, TMDS_0+/-the high-speed-differential electrical signal conversion becomes the circuit diagram of light signal.This is the specific implementation that the TMDS high-speed electrical signals converts light signal to.
Fig. 4 is in the transmitter 105, TMDS_1+/-the high-speed-differential electrical signal conversion becomes the circuit diagram of light signal.This is the specific implementation that the TMDS high-speed electrical signals converts light signal to.
Fig. 5 is in the transmitter 105, TMDS_2+/-the high-speed-differential electrical signal conversion becomes the circuit diagram of light signal.This is the specific implementation that the TMDS high-speed electrical signals converts light signal to.
Fig. 6 is in the transmitter 105, TMDS_CLK+/-the high-speed-differential electrical signal conversion becomes the circuit diagram of light signal.This is the specific implementation that the TMDS high-speed electrical signals converts light signal to.
Fig. 7 is in the transmitter 105, and microcontroller receives from the circuit diagram of receiver passback light signal; This is 204,205,206 a specific implementation among Fig. 2.
In Fig. 8, described the major function piece of receiver, this is the specific implementation of receiver 109 among Fig. 1.
HDMI interface or DVI interface 801 are used for connecting HDMI or DVI cable, as HDMI cable among Fig. 1 or DVI cable 111.Four road TMDS signals of display and control signal are by this cable output.
Four road TMDS high speed signals that receiver is exported from HDMI interface or DVI interface are TMDS_0, TMDS_1, TMDS_2, TMDS_CLK.Four tunnel control signals that are connected with display are SCL, SDA, CEC, Hot Plug Detect.
802 is 4 limiting amplifier chips, and 803 is 4 laser detectors (ROSA), and 802 and 803 finish the realization of four road light signals to the TMDS high-speed electrical signals.4 laser detectors (ROSA) receive corresponding four road light signals respectively, and convert thereof into corresponding TMDS_0, TMDS_1, TMDS_2, this four tunnel high-speed electrical signals of TMDS_CLK is through exporting to display by HDMI interface or DVI interface 801 after the limiting amplifier amplifying signal amplitude.4 laser detectors (ROSA) are installed in the LC optical fiber interface 108 of receiver 109, by the four road light signals of optical fiber reception from transmitter 105.Generally, the limiting amplifier chip is MAX3768 (or other similar laser chip for driving), is part commonly used.Laser detector (ROSA) is 2.5Gbps speed, LC interface, PIN-TIA laser detector, is part commonly used.
MAX998 (or other similar chips) is part commonly used.Microcontroller is AVR single chip computer AT MEGAgL (or other similar single-chip microcomputers), possesses I2C bus and USART serial bus, is part commonly used.
Fig. 9 is in the receiver 109, and light signal is reduced into the circuit diagram of TMDS_0 signal, and this is the specific implementation that light signal converts the TMDS high-speed electrical signals to.
Figure 10 is in the receiver 109, and light signal is reduced into the circuit diagram of TMDS_1 signal, and this is the specific implementation that light signal converts the TMDS high-speed electrical signals to.
Figure 11 is in the receiver 109, and light signal is reduced into the circuit diagram of TMDS_2 signal, and this is the specific implementation that light signal converts the TMDS high-speed electrical signals to.
Figure 12 is in the receiver 109, and light signal is reduced into the circuit diagram of TMDS_CLK signal, and this is the specific implementation that light signal converts the TMDS high-speed electrical signals to.
Figure 13 is in the receiver 109, and microcontroller sends the circuit diagram of passback light signal; This is 804,805,806 a specific implementation among Fig. 8.
Figure 14 is the main program workflow diagram of microcontroller 204 in the transmitter 105.This is the specific implementation of microcontroller operate as normal in the transmitter.
Figure 15 is the main program workflow diagram of microcontroller 804 in the receiver 109.This is the specific implementation of microcontroller operate as normal in the receiver.
Claims (10)
1. one kind prolongs the method that HDMI or DVI interface connect distance with the five optical fibers extra long distance, comprise video source and display, be equipped with HDMI or DVI interface on video source and the display, it is characterized in that described method is by transmitter original four road TMDS conversion of signals of HDMI on the video source or DVI interface to be become four road light signals, give receiver by four Optical Fiber Transmission, and transmitter comprises a laser detector, receive the light signal of beaming back from receiver by an other optical fiber, convert thereof into Low Voltage Differential Signal, convert Low Voltage Differential Signal to the TTL signal by change-over circuit again and input to microcontroller, microcontroller translates display EDID information and the CEC signal that comprises in the TTL signal, reads for video source.
2. the method that prolongs HDMI or DVI interface connection distance with the five optical fibers extra long distance according to claim 1, it is characterized in that described transmitter is connected to receiver by five optical fibers, receiver receives four road light signals and it is reduced into four road original TMDS signals, output to HDMI or DVI interface, also comprise microcontroller in the receiver, HDMI interface or DVI interface by display, reading displayed device EDID information and CEC signal, the monitor information that reads is changed into light signal by change-over circuit, send it back transmitter by an other optical fiber.
3. the method that prolongs HDMI or DVI interface connection distance with the five optical fibers extra long distance according to claim 1 and 2, it is characterized in that described transmitter is provided with electricity/light change-over circuit, it can be four road light signals with the HDMI of video source or four tunnel original TMDS conversion of signals of DVI interface input, arrives receiver by four Optical Fiber Transmission.
4. the method that prolongs HDMI or DVI interface connection distance with the five optical fibers extra long distance according to claim 1 and 2, it is characterized in that described receiver is provided with light/power conversion circuit, it can come transmitter by four tunnel Optical Fiber Transmission light signal, convert original TMDS signal to, output to the HDMI or the DVI interface of display.
5. the method that prolongs HDMI or DVI interface connection distance with the five optical fibers extra long distance according to claim 1 and 2, it is characterized in that comprising in the described transmitter laser detector and change-over circuit, the light signal that the conversion receiver is beamed back is a Low Voltage Differential Signal, and be converted to the TTL signal by change-over circuit, input to microcontroller.
6. according to claim 1, the 2 or 5 described methods that prolong HDMI or DVI interface connection distance with the five optical fibers extra long distance, it is characterized in that the microcontroller that comprises in the described transmitter, it receives the TTL signal of laser detector and change-over circuit output, and be reduced to the EDID information and the CEC signal of display, HDMI by video source or SDA, SCL in the DVI interface, these 4 PIN of CEC, Hot Plug Detect read for video source.
7. according to claim 1, the 2 or 5 described methods that prolong HDMI or DVI interface connection distance with the five optical fibers extra long distance, it is characterized in that the microcontroller that comprises in the described transmitter, No. four generating lasers send laser or do not send laser in its control transmitter, so that allow the laser detector circuit of receiver discern the whether success of reception passback light signal of present transmitter, after receiving successfully, microprocessor controls No. four generating laser circuit, beginning original TMDS conversion of signals is light signal.
8. the method that prolongs HDMI or DVI interface connection distance with the five optical fibers extra long distance according to claim 1 and 2, it is characterized in that comprising in the described receiver microcontroller, its HDMI by display or SDA, SCL in the DVI interface, these 4 PIN of CEC, Hot Plug Detect, the EDID information of reading displayed device and CEC signal are also done serial process with it, and pass through change-over circuit, be converted into light signal, pass back to transmitter by an other optical fiber.
9. according to claim 1, the 2 or 8 described methods that prolong HDMI or DVI interface connection distance with the five optical fibers extra long distance, it is characterized in that the microcontroller that comprises in the described receiver, Signal Detected signal in No. four laser detector circuit in the supervision receiver, judge the state of transmitter receiving optical signals, thereby judge that transmitter receives the light signal that sends from receiver and whether receives success, if it is failure that the transmitter optical signal receives, receiver resends EDID information and CEC signal.
10. according to claim 1,2,5,6,7, the 8 or 9 described methods that prolong HDMI or DVI interface connection distance with the five optical fibers extra long distance, it is characterized in that the microcontroller that comprises in the described receiver, after sending the success of EDID information and CEC signal, HDMI or DVI interface by display, real time monitoring CEC signal, and by change-over circuit, be light signal with the CEC conversion of signals, constantly be transferred to transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100627500A CN101931466A (en) | 2009-06-22 | 2009-06-22 | Method for extending HDMI or DVI interface connection at ultra-long distance by using five optical fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100627500A CN101931466A (en) | 2009-06-22 | 2009-06-22 | Method for extending HDMI or DVI interface connection at ultra-long distance by using five optical fibers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101931466A true CN101931466A (en) | 2010-12-29 |
Family
ID=43370415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100627500A Pending CN101931466A (en) | 2009-06-22 | 2009-06-22 | Method for extending HDMI or DVI interface connection at ultra-long distance by using five optical fibers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101931466A (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102523438A (en) * | 2011-12-20 | 2012-06-27 | 江苏飞格光电有限公司 | Fiber-transmission digital visual interface (DVI) |
| CN103024366A (en) * | 2012-12-14 | 2013-04-03 | 广东威创视讯科技股份有限公司 | Remote transmission system for ultra-high-definition video signals |
| CN104166192A (en) * | 2013-05-20 | 2014-11-26 | 鸿富锦精密工业（深圳）有限公司 | Hdmi data transmission device |
| CN104184521A (en) * | 2014-09-09 | 2014-12-03 | 昆山思雷电子科技有限公司 | Minitype separating type HDMI optical fiber transmission device |
| CN106130645A (en) * | 2016-07-01 | 2016-11-16 | 武汉博昇光电股份有限公司 | A kind of ultra high-definition distance HDMI optical cable |
| CN106657942A (en) * | 2017-01-21 | 2017-05-10 | 上海睿观博光电科技有限公司 | Dual-core optical fiber transmitter for DVI signals |
| CN106657943A (en) * | 2017-01-21 | 2017-05-10 | 上海睿观博光电科技有限公司 | Four-core optical fiber transmitter for DVI signals |
| CN106713876A (en) * | 2017-02-20 | 2017-05-24 | 上海睿观博光电科技有限公司 | Two-core optical fiber transmitter for 4K super high-definition signal |
| CN106899818A (en) * | 2015-12-21 | 2017-06-27 | 广州航天海特***工程有限公司 | A kind of HDMI signals light transmitting device |
| CN108964767A (en) * | 2018-09-05 | 2018-12-07 | 深圳智尚视讯科技有限公司 | A kind of HDMI wire transmitted using optical fiber |
| CN109196872A (en) * | 2016-06-01 | 2019-01-11 | 松下知识产权经营株式会社 | Sending device, reception device, cable, sending method and method of reseptance |
| CN110351510A (en) * | 2019-08-09 | 2019-10-18 | 昆山思雷电子科技有限公司 | A kind of fiber matrix interchanger transmitting device and converting interface device |
| CN110572625A (en) * | 2019-03-12 | 2019-12-13 | 飞昂创新科技南通有限公司 | Optical data interconnect system |
| CN110572602A (en) * | 2019-03-12 | 2019-12-13 | 飞昂创新科技南通有限公司 | Battery trigger for activation of optical data interconnect system |
| CN110661991A (en) * | 2019-03-12 | 2020-01-07 | 飞昂创新科技南通有限公司 | Target powered optical data interconnect system |
| CN112261334A (en) * | 2020-10-21 | 2021-01-22 | 广东博华超高清创新中心有限公司 | Transmission method and system supporting HDMI2.1 signal single-channel input and multi-channel output |
| CN112311460A (en) * | 2020-12-01 | 2021-02-02 | 深圳市巨潮科技股份有限公司 | Self-adaptive 6-path 4-path optical fiber conversion DVI signal transmission device and method |
-
2009
- 2009-06-22 CN CN2009100627500A patent/CN101931466A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102523438A (en) * | 2011-12-20 | 2012-06-27 | 江苏飞格光电有限公司 | Fiber-transmission digital visual interface (DVI) |
| CN103024366A (en) * | 2012-12-14 | 2013-04-03 | 广东威创视讯科技股份有限公司 | Remote transmission system for ultra-high-definition video signals |
| CN103024366B (en) * | 2012-12-14 | 2016-12-28 | 广东威创视讯科技股份有限公司 | A kind of ultra high-definition video signal remote transmitting system |
| CN104166192A (en) * | 2013-05-20 | 2014-11-26 | 鸿富锦精密工业（深圳）有限公司 | Hdmi data transmission device |
| CN104184521A (en) * | 2014-09-09 | 2014-12-03 | 昆山思雷电子科技有限公司 | Minitype separating type HDMI optical fiber transmission device |
| CN106899818A (en) * | 2015-12-21 | 2017-06-27 | 广州航天海特***工程有限公司 | A kind of HDMI signals light transmitting device |
| CN109196872A (en) * | 2016-06-01 | 2019-01-11 | 松下知识产权经营株式会社 | Sending device, reception device, cable, sending method and method of reseptance |
| CN106130645A (en) * | 2016-07-01 | 2016-11-16 | 武汉博昇光电股份有限公司 | A kind of ultra high-definition distance HDMI optical cable |
| CN106657942A (en) * | 2017-01-21 | 2017-05-10 | 上海睿观博光电科技有限公司 | Dual-core optical fiber transmitter for DVI signals |
| CN106657943A (en) * | 2017-01-21 | 2017-05-10 | 上海睿观博光电科技有限公司 | Four-core optical fiber transmitter for DVI signals |
| CN106713876A (en) * | 2017-02-20 | 2017-05-24 | 上海睿观博光电科技有限公司 | Two-core optical fiber transmitter for 4K super high-definition signal |
| CN108964767A (en) * | 2018-09-05 | 2018-12-07 | 深圳智尚视讯科技有限公司 | A kind of HDMI wire transmitted using optical fiber |
| CN110572625A (en) * | 2019-03-12 | 2019-12-13 | 飞昂创新科技南通有限公司 | Optical data interconnect system |
| CN110572602A (en) * | 2019-03-12 | 2019-12-13 | 飞昂创新科技南通有限公司 | Battery trigger for activation of optical data interconnect system |
| CN110661991A (en) * | 2019-03-12 | 2020-01-07 | 飞昂创新科技南通有限公司 | Target powered optical data interconnect system |
| CN110572602B (en) * | 2019-03-12 | 2021-10-15 | 飞昂创新科技南通有限公司 | Battery trigger for activation of optical data interconnect system |
| CN110351510A (en) * | 2019-08-09 | 2019-10-18 | 昆山思雷电子科技有限公司 | A kind of fiber matrix interchanger transmitting device and converting interface device |
| CN112261334A (en) * | 2020-10-21 | 2021-01-22 | 广东博华超高清创新中心有限公司 | Transmission method and system supporting HDMI2.1 signal single-channel input and multi-channel output |
| CN112311460A (en) * | 2020-12-01 | 2021-02-02 | 深圳市巨潮科技股份有限公司 | Self-adaptive 6-path 4-path optical fiber conversion DVI signal transmission device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101931466A (en) | Method for extending HDMI or DVI interface connection at ultra-long distance by using five optical fibers | |
| CN102263575B (en) | Transmitter device, receiver device, transmission method, reception method, and transmitter/receiver device | |
| US8176214B2 (en) | Transmission of alternative content over standard device connectors | |
| US8841886B2 (en) | Power charging of mobile devices via a HDMI interface | |
| EP2385517A1 (en) | System and method for operating an electronic device having an HDMI port that is shared between an HDMI source function and an HDMI sink function of the electronic device | |
| KR101414447B1 (en) | Dual mode Display-Port connector | |
| US20100091180A1 (en) | Signal conversion apparatuses and display system | |
| CN110719423B (en) | Self-adaptive HDMI cable | |
| JP2012015649A (en) | Bidirectional communication interface device and bidirectional communication interface system | |
| CN109587427A (en) | High-definition multimedia interface active optical cable circuit | |
| US20140162727A1 (en) | Signal conversion device, signal conversion method and terminal device | |
| US11375270B2 (en) | Cable, method of controlling cable, connection device, electronic device, and method of controlling electronic device | |
| CN109309820A (en) | A kind of HDMI active optical cable connecting line with monitoring and configuration feature | |
| CN101489075B (en) | Display signal extending apparatus and method for transmitting display signal therefor | |
| CN117793274A (en) | Repeater, receiving end plug, active cable and signal transmission method | |
| US20110285903A1 (en) | Receiving apparatus and receiving method | |
| CN105960764B (en) | High-definition video signal optical transmission system, module pin define method and transmission method | |
| US8456456B2 (en) | Dongle | |
| US8458378B2 (en) | Cable | |
| CN201550224U (en) | DVI communication data transmission device | |
| US20070052869A1 (en) | Long-distance digital visual interface (DVI) apparatus | |
| KR101183326B1 (en) | Signal transmission cable | |
| KR20120010666A (en) | Display-Port optical connector | |
| KR20170117779A (en) | High Speed Active Optical Cable | |
| US20210082601A1 (en) | Cable, control information transmission method for cable, connection apparatus, electronic equipment, and output data controlling method for electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Qian Guotao Document name: the First Notification of an Office Action |
|
| DD01 | Delivery of document by public notice |
Addressee: Qian Guotao Document name: Notification that Application Deemed to be Withdrawn |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101229 |