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 PDF

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CN101931466A
CN101931466A CN 200910062750 CN200910062750A CN101931466A CN 101931466 A CN101931466 A CN 101931466A CN 200910062750 CN200910062750 CN 200910062750 CN 200910062750 A CN200910062750 A CN 200910062750A CN 101931466 A CN101931466 A CN 101931466A
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signal
hdmi
optical
receiver
transmitter
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CN 200910062750
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Chinese (zh)
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钱国涛
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钱国涛
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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

用五根光纤超长距离延长HDMI或DVI接口连接的方法 Method five ultra long distance fibers with extended HDMI or DVI interfacing

技术领域 FIELD

[0001 ] 本发明涉及一种大幅度提高HDMI或DVI接口连接距离的方法,尤其是涉及一种用五根光纤延长HDMI或DVI接口连接距离的方法。 Method [0001] The present invention relates to a method for substantially improving DVI or HDMI interface distance, more particularly to a DVI or HDMI interface to extend the distance by five optical fibers.

背景技术 Background technique

[0002] 随着数字高清技术的快速发展和进步,各种高清音频/视频源设备,例如,蓝光DVD播放机、HD DVD播放机、个人电脑、视频游戏机、数字机顶盒,以及高清显示设备如高清平板液晶、高清电脑显示器等日益走进人们的家庭生活,一个全新的数字高清时代正在全面到来。 [0002] With the rapid development and progress of digital high-definition technology, a variety of high-definition audio / video source devices, such as Blu-ray DVD players, HD DVD players, personal computers, video game consoles, digital set-top boxes, as well as high-definition display devices, such as LCD high-definition flat-panel, high-definition computer monitors and other more and more into people's family life, a new digital high-definition era is in full arrival.

[0003] HDMI,英文全称是High Definition Multimedia Interface,中文名称是高清晰多媒体接口的缩写。 [0003] HDMI, English stands for High Definition Multimedia Interface, Chinese name is an abbreviation of high-definition multimedia interface. 2002年4月,日立、松下、飞利浦、索尼、汤姆逊、东芝和Silicon Image 七家公司联合组成HDMI组织。 In April 2002, Hitachi, Panasonic, Philips, Sony, Thomson, Toshiba and Silicon Image HDMI coalition of seven companies organization. HDMI能高品质地传输未经压缩的高清视频和多声道音频数据,最高数据传输速度为5Gbps。 HDMI can be high-quality transmission of uncompressed high-definition video and multi-channel audio data, the maximum data transfer rate of 5Gbps. 同时无需在信号传送前进行数/模或者模/数转换,可以保证最高质量的影音信号传送。 While eliminating the need for D / A or A / D converted signal before transmission, ensures the highest quality video signal transmission.

[0004] HDMI不仅可以满足目前最高画质1080P的分辨率,还能支持DVD Audio等最先进的数字音频格式,支持八声道96kHz或立体声192kHz数码音频传送,而且只用一条HDMI线连接,免除数字音频接线。 [0004] HDMI not only meet the highest resolution 1080P picture quality, but also support DVD Audio as the most advanced digital audio formats, supports eight-channel stereo 96kHz or 192kHz digital audio transmission, and connect only one HDMI cable, eliminating the the digital audio connection. 同时HDMI标准所具备的额外空间可以应用在日后升级的音视频格式中。 While the HDMI standard has extra space can be used in audio and video formats in future upgrades. 足以应付一个IOSOp的视频和一个8声道的音频信号。 IOSOp sufficient to meet a video and an 8-channel audio signals. 而因为一个IOSOp的视频和一个8声道的音频信号需求少于4GB/s,因此HDMI还有很大余量。 And because a IOSOp video and audio signal needs a channel 8 is less than 4GB / s, and therefore there is a great margin HDMI. 这允许它可以用一个电缆分别连接DVD播放器,接收器和PRR。 This allows it to be connected with a cable DVD player, receiver and PRR. 此外HDMI支持EDID、DDC2B,因此具有HDMI的设备具有“即插即用”的特点,信号源和显示设备之间会自动进行“协商”,自动选择最合适的视频/音频格式。 Further support HDMI EDID, DDC2B, thus having a HDMI device with "plug and play" feature will automatically "negotiation" between the signal source and the display device, to automatically select the most appropriate video / audio format. HDMI规格同时可搭配宽带数字内容保护(HDCP),以防止具有著作权的影音内容遭到未经授权的复制。 While the HDMI specification can be used with broadband digital content protection (HDCP), to prevent the reproduction of copyrighted audio and video content from unauthorized copying.

[0005] DVI (Digital Visual Interface):是由1998 年9 月,在Intel 开发者论坛上成立的数字显示工作小组(Digital Display Working Group简称DDWG)发明的一种高速传输数字信号的技术。 [0005] DVI (Digital Visual Interface): by September 1998, the establishment of the Intel Developer Forum Digital technique Working Group (Digital Display Working Group referred DDWG) invention of high-speed digital transmission signal is displayed. DVI 是基于TMDS(Transition Minimized Differential Signaling, 转换最小差分信号)技术来传输数字信号,TMDS运用先进的编码算法把8bit数据(R、G、B 中的每路基色信号)通过最小转换编码为IObit数据(包含行场同步信息、时钟信息、数据DE、纠错等),经过DC平衡后,采用差分信号传输数据,它和LVDS、TTL相比有较好的电磁兼容性能。 DVI is based on TMDS (Transition Minimized Differential Signaling, Transition Minimized Differential Signaling) technology to transmit digital signals, TMDS use of advanced encoding algorithms to 8bit data (R, G, each embankment color signal B in) by minimizing transcoding to IObit data (including horizontal and vertical sync information, clock information, data DE, error correction, etc.), after DC balance, a data differential signal transmission, and it LVDS, TTL better compared to electromagnetic compatibility.

[0006] 对于HDMI或DVI接口在数字电视、平板电视上的应用研究,更为关键的是EDID(Extended Display Identification DATA,即扩展显示识别数据)编程, HDCP(High-bandwidth Digital Content Protection)功能的实现。 [0006] For the DVI or HDMI interface application research on the digital television, flat panel TV, is more critical EDID (Extended Display Identification DATA, i.e., extended display identification data) programming, HDCP (High-bandwidth Digital Content Protection) function achieve. 这些对于数字电视来说都是全新应用,只有EDID和HDCP在数字电视上实现后,HDMI或DVI接口才是真正的数字电视接口。 These are for new applications for digital TV, only EDID and HDCP implemented on digital TV, HDMI or DVI interface is the real digital TV interface.

[0007] HDMI或DVI接口目前使用较高工艺的HDMI或DVI电缆,在较短距离内传输高速的 [0007] HDMI or DVI interface processes currently used high HDMI or DVI cable, high-speed transmission in a short distance

4视频/音频信号和显示器EDID、DDC2B信息。 4 video / audio signals and a display EDID, DDC2B information. 随着HDMI或DVI电缆传输距离的增加,高速电信号的衰减和信号质量,都会急剧下降,而电缆的制造成本急剧升高。 HDMI or DVI cable with increasing transmission distance, high-speed electric signal attenuation and signal quality will drop sharply, while the sharp rise in the manufacturing cost of the cable. 介于HDMI或DVI电缆传输距离短,造价高和受环境干扰大的特性,本发明既一种利用激光传输HDMI或DVI信号的方法,通过信号转换,把HDMI或DVI接口中的电信号转换成光信号,利用光纤传输,从而解决视频源和显示器之间音频/视频信号、EDID信息和CEC信号的长距离的传输。 DVI or HDMI cable between the transmission distance is short, the high cost and large environmental interference characteristics by the present invention utilizing both the laser delivery methods HDMI or DVI signals via the signal converter, the electrical signal DVI or HDMI interface into optical signal transmission using an optical fiber, to solve the audio / video signals between the video source and the display, long distance transmission of the CEC signal and the EDID information.

发明内容 SUMMARY

[0008] 本发明主要解决现有技术传输HDMI或DVI接口的连接距离短,现有各种延长传输方式,传输距离有限,传输质量不好等技术问题,提供一种传输距离超长,传输质量好的技术解决方案。 [0008] The present invention to solve the prior art short connecting DVI interface or HDMI transmission distance, various conventional extended transmission mode, the transmission distance is limited, poor transmission quality and other technical problems and to provide long distance, for transmitting the transmission quality good technical solutions.

[0009] 本发明的上述技术问题主要通过下述技术方案得以解决:一种用五根光纤超长距离延长HDMI或DVI接口连接距离的方法,包括视频源和显示器,视频源和显示器上均设有HDMI或DVI接口,其特征在于所述的方法是通过发送器将视频源上HDMI或DVI接口中的原始四路TMDS信号转换成四路光信号,通过四根光纤传输给接收器,并且发送器包含一个激光探测器,其通过另外一根光纤接收从接收器发回的光信号,并将其转换成低压差分信号,再通过转换电路将低压差分信号转换成TTL信号输入给微控制器,微控制器翻译出TTL 信号中包含的显示器EDID信息和CEC信号,并通过视频源的HDMI或DVI接口中的SDA、 SCL、CEC、Hot Plug Detect这4个PIN,供视频源读取,发送器中的微控制器,通过Driver Control信号来控制发送器里四路激光发射器发出激光或不发出激光,以便让接收器的激光探 [0009] The technical problem of the present invention is mainly solved by the following technical solution: A method for ultra long-haul optical fibers extend five HDMI or DVI connector with the connection distance, including a video source and a display, the video source and the display are located an HDMI or DVI interface, wherein said method is performed by the HDMI transmitter converts the original video source or four DVI interface TMDS signal into four optical signals transmitted through the four optical fibers to a receiver, and sends comprises a laser detector which receives from the receiver sends back an optical fiber through a further optical signal, and converts it into low voltage differential signal, and then through the conversion circuit converts the differential signal into low voltage TTL signal is input to the microcontroller, the microcontroller monitors the EDID information and translated TTL CEC signal contained in the signal, and through the DVI interface or HDMI video source in the SDA, SCL, CEC, Hot Plug Detect the PIN four, for reading a video source, transmitter laser probe microcontroller, by Driver control signals to control the laser transmitter in the transmitter emits four laser light or does not emit a laser, so that the receiver 器电路识别目前发送器接收回传光信号是否成功,接收成功后,微控制器控制四路激光发射器电路,开始将原始TMDS信号转换为光信号。 Identifying current transmitter circuit receives an optical return signal if successful, after successful reception, the microcontroller controls four laser transmitter circuit, starts the original TMDS signal is converted into an optical signal. 光纤的传输长度比HDMI或DVI电缆要长很多,发送器通过五根光纤连接到接收器,接收器接收四路光信号并将其还原成原始的四路TMDS信号,输出到HDMI或DVI接口传输给显示器,接收器中还包含微控制器,通过显示器的HDMI接口或DVI接口中的SDA、SCL、CEC、Hot Plug Detect这4个PIN,读取显示器EDID信息和CEC信号,并将其做串行处理,并通过转换电路,将其转换为光信号,通过另外一根光纤将转换后的光信号回传到发送器,接收器中的微控制器,还监视接收器里四路激光探测器电路中Signal Detected信号,从而判断发送器接收从接收器发送的光信号是否接收成功,如果发送器光信号接收是失败,接收器重新发送EDID信息和CEC信号。 Optical fiber transmission length is much longer than the HDMI or DVI cable, a transmitter connected to a receiver through five optical fibers, the optical receiver receives the four signals and restore the original four TMDS signal is output to the DVI or HDMI interface transmitting to the display, the receiver further includes a microcontroller, via HDMI or DVI interface display in the SDA, SCL, CEC, Hot Plug Detect the PIN four, EDID reading display information and the CEC signal, and to do it string line processing, and through the switching circuit, it is converted to an optical signal, an optical fiber through an additional optical signal is converted back to the transmitter, the receiver microcontroller, the receiver also monitors where four laser detector signal Detected signal circuit, to determine the transmitter the receiver receives the optical signal transmitted is received from the successful if transmitted optical signal is received fails, the receiver transmits EDID information and re-CEC signal. 发送EDID信息和CEC信号成功后,微控制器通过显示器HDMI或DVI接口,实时监视CEC信号, 并通过转换电路,将CEC信号转换为光信号,不断回输到发送器。 After transmitting the CEC signal and the EDID information is successful, micro-controller display HDMI or DVI interface, real-time monitoring CEC signal, through the switching circuit and the CEC signal into an optical signal, continuously recirculated to the transmitter.

[0010] 作为优选,所述的发送器将视频源上HDMI或DVI接口的原始四路TMDS信号转换成四路光信号,通过四根光纤传输给接收器,并且发送器包含一个激光探测器,其通过另外一根光纤接收从接收器发回的光信号,并将其转换成低压差分信号,再通过转换电路将低压差分信号转换成TTL信号输入给微控制器,微控制器翻译出TTL信号中包含的显示器EDID信息和CEC信号,供视频源读取。 [0010] Advantageously, the transmitter on the HDMI or DVI video source interface TMDS signal converted into the original four four optical signals transmitted through the four optical fibers to a receiver, and the transmitter comprises a laser detector, which receives the optical signal sent back from the receiver through another optical fiber, and converts it into low voltage differential signal, and then through the conversion circuit converts the differential signal into low voltage TTL signal is input to the microcontroller, the microcontroller translated TTL signal and display the EDID information contained in the CEC signal, for reading a video source.

[0011] 作为优选,所述的发送器通过五根光纤连接到接收器,接收器接收四路光信号并将其还原成原始的四路TMDS信号,输出到HDMI或DVI接口,接收器中还包含微控制器,通过显示器的HDMI接口或DVI接口,读取显示器EDID信息和CEC信号,将读取到的显示器信息通过转换电路转化成光信号,通过另外一根光纤发送回发送器。 [0011] Advantageously, the transmitter is connected to the receiver through five optical fibers, the optical receiver receives the four signals and restore the original four TMDS signal and outputs to the HDMI or DVI connector, the receiver further display information includes a microcontroller, via HDMI or DVI interface display, the EDID reading display information and the CEC signal, the read is converted into an optical signal through the switching circuit, sent back by a further fiber optic transmitters.

5[0012] 作为优选,所述的发送器设有电/光转换电路,它可以将视频源的HDMI或DVI接口输入的四路原始TMDS信号转换为四路光信号,通过四根光纤传输到接收器。 5 [0012] Advantageously, the transmitter is provided with electrical / optical conversion circuit, which converts four DVI or HDMI interface input original video source signal is a four TMDS optical signal transmitted through the optical fibers to the four receiver.

[0013] 作为优选,所述的接收器设有光/电转换电路,它可以将发送器通过四路光纤传输来的光信号,转换成原始TMDS信号,输出到显示器的HDMI或DVI接口。 [0013] Advantageously, the receiver is provided with optical / electrical conversion circuit that may be transmitted by optical fiber transmission is four optical signal is converted into the original TMDS signal, output to the display HDMI or DVI interfaces.

[0014] 作为优选,所述的发送器里包含一个激光探测器和转换电路,转换接收器发回的光信号为低压差分信号,并通过转换电路转换为TTL信号,输入给微控制器。 [0014] Advantageously, the transmitter contains a laser detector and the converting circuit, converting the received optical signal is sent back to a low voltage differential signal, and converts the TTL signal converting circuit, an input to the microcontroller.

[0015] 作为优选,所述的发送器里包含的微控制器,其接收激光探测器接收到的信号,并还原为显示器的EDID信息和CEC信号,通过视频源的HDMI或DVI接口中的SDA、SCL、CEC、 Hot Plug Detect这4个PIN,供视频源读取。 [0015] Advantageously, the transmitter contains a microcontroller, a laser detector which receives the received signal, and to restore and display the EDID information CEC signal, HDMI or DVI video source interfaces of SDA , SCL, CEC, Hot Plug Detect four PIN, for video source to read.

[0016] 作为优选,所述的发送器里包含的微控制器,其控制发送器里四路激光发射器发出激光或不发出激光,以便让接收器的激光探测器电路识别目前发送器的接收回传光信号是否成功,接收成功后,微控制器控制四路激光发射器电路,开始将原始TMDS信号转换为 Laser detector circuit receiving identification [0016] Advantageously, the microcontroller contains a transmitter which controls the transmitter in the transmitter emits four laser emits laser light or laser, so that the receiver of the current transmitter return optical signal is successful, the reception is successful, micro-controller controls the four laser transmitter circuit, the start signal into the original TMDS

光信号。 Optical signal.

[0017] 作为优选,所述的接收器里包含一个微控制器,其通过HDMI或DVI接口中的SDA、 SCL、CEC、Hot Plug Detect这4个PIN,读取显示器的EDID信息和CEC信号并将其做串行处理,并通过转换电路,将其转换为光信号,通过另外一根光纤回传到发送器。 [0017] Advantageously, the receiver contains a microcontroller, by HDMI or DVI interface SDA, SCL, CEC, Hot Plug Detect the PIN four, reads EDID information of the display and the CEC signal, and which do serial processing, and through the switching circuit, converted to an optical signal, via a further optical fiber back to the sender.

[0018] 作为优选,所述的接收器里包含的微控制器,监视接收器里四路激光探测器电路中Signal Detected信号,判断发送器接收光信号的状态,从而判断发送器接收从接收器发送的光信号是否接收成功,如果发送器光信号接收是失败,接收器重新发送EDID信息和CEC信号。 [0018] Advantageously, a microcontroller included in a receiver, a monitor receiver in the four laser detector circuit Signal Detected signal, the transmitter determines the state of the received light signal to determine the transmitter receives from the receiver whether the received optical signal sent successfully, the transmitter if the received optical signal is a failure, the receiver again transmits the CEC signal and the EDID information.

[0019] 作为优选,所述的接收器里包含的微控制器,在发送EDID信息和CEC信号成功后, 通过显示器的HDMI或DVI接口,实时监视CEC信号,并通过转换电路,将CEC信号转换为光信号,不断传输到发送器。 [0019] Advantageously, a microcontroller included in a receiver, after transmitting the CEC signal EDID information and success, through the display interface to the HDMI or DVI, real-time monitoring CEC signal, and through the conversion circuit converts the CEC signal optical signal continuously transmitted to the transmitter.

[0020] 本发明有益效果是,通过五根光纤实现了超长距离传输HDMI或DVI接口里的高频音频/视频信号和控制信号。 [0020] Advantageous effects of the present invention is achieved by five fiber ultra long distance transmission in the HDMI or DVI interface high frequency audio / video signals and control signals. 发明提出了一种通过五根光纤来超长距离延长HDMI或DVI 信号的小型设备。 Invention proposes a fiber to ultra-long distance extended by five HDMI or DVI signal device small. 本发明可以通过五根光纤可靠地延长1080P视频传输超过1000英尺,并支持EDID、HDCP功能。 The present invention can be extended by five optical fibers securely 1080P video transmission over 1000 feet, and support EDID, HDCP function.

[0021] 因此,本发明具有如下优点: [0021] Accordingly, the present invention has the following advantages:

[0022] (I)HDMI接口或DVI接口之间全部采用光纤传输,传输距离超长,可靠地延长1080P视频传输超过1000英尺,并支持EDID、HDCP功能; [0022] in all fiber optic transmission between (I) HDMI interface or a DVI interface, long transmission distance, extend 1080P reliable video transmission over 1000 feet, and support EDID, HDCP function;

[0023] (2)全部采用光信号传输,传输质量好,传输信号不受外界环境的干扰; [0023] (2) good in all the optical transmission signal, the transmission quality of the transmission signal without interference from the external environment;

[0024] (3)视频源通过发送器和接收器,可以在超长距离传输下,顺利读取显示器EDID信息和CEC信号,解决了其他延长方案不能超长距离回传EDID信息和CEC信号的技术难题; [0024] (3) the video source through the transmitter and receiver may be in the ultra-long distance transmission, and the EDID information reading display smoothly CEC signal, the program can not solve the other extended return EDID information over long distances and the CEC signal technical challenge;

[0025] (4)发送器和接收器体积小巧,安装方便; [0025] (4) a transmitter and a receiver compact, easy to install;

[0026] (5)视频源和显示器分别插上发送器和接收器,连接五根光纤后,便能正常工作, 无需人为设置或调试,真正做到即插即用的特点。 After [0026] (5), respectively, and a display video source plug transmitter and receiver, five optical fibers are connected, will be able to work, without human or debug settings, truly plug and play characteristics.

附图说明 BRIEF DESCRIPTION

[0027] 附图1是本发明的一种结构示意图;[0028] 附图2是本发明的发送器的一种结构示意图; [0027] Figure 1 is a schematic view of a configuration of the present invention; [0028] Figure 2 is a schematic structural diagram of the transmitter of the present invention;

[0029] 附图3是本发明的发送器中TMDS_0信号转换光信号的电路示意图; [0029] Figure 3 is a circuit diagram TMDS_0 signal converting an optical signal transmitter according to the present invention;

[0030] 附图4是本发明的发送器中TMDS_1信号转换光信号的电路示意图; [0030] Figure 4 is a circuit diagram TMDS_1 signal converting an optical signal transmitter according to the present invention;

[0031] 附图5是本发明的发送器中TMDS_2信号转换光信号的电路示意图; [0031] Figure 5 is a circuit schematic TMDS_2 signal converting an optical signal transmitter according to the present invention;

[0032] 附图6是本发明的发送器中TMDS_CLK信号转换光信号的电路示意图; [0032] Figure 6 is a circuit diagram TMDS_CLK signal converting an optical signal transmitter according to the present invention;

[0033] 附图7是本发明的发送器中微控制器的接收回传光信号的电路示意图; [0033] Figure 7 is a transmitter receiver of the present invention is a circuit diagram of the microcontroller return optical signal;

[0034] 附图8是本发明的接收器的一种结构示意图; [0034] Figure 8 is a diagram of a configuration of a receiver according to the present invention;

[0035] 附图9是本发明的接收器中将光信号还原成TMDS_0信号的电路示意图; [0035] Figure 9 is a reduction in the optical signal the receiver of the present invention as a circuit diagram TMDS_0 signal;

[0036] 附图10是本发明的接收器中将光信号还原成TMDS_1信号的电路示意图; [0036] Figure 10 is a reduction in the optical signal the receiver of the present invention as a circuit diagram TMDS_1 signal;

[0037] 附图11是本发明的接收器中将光信号还原成TMDS_2信号的电路示意图; [0037] Figure 11 is a reduction in the optical signal the receiver of the present invention as a circuit diagram TMDS_2 signal;

[0038] 附图12是本发明的接收器中将光信号还原成TMDS_CLK信号的电路示意图; [0038] Figure 12 is a reduction in the optical signal the receiver of the present invention as a circuit diagram TMDS_CLK signal;

[0039] 附图13是本发明的接收器中微控制器的发送回传光信号的电路示意图; [0039] Figure 13 is a receiver of the present invention is a circuit diagram of an optical signal transmitted back pass microcontroller;

[0040] 附图14是本发明的发送器中微控制器的主程序工作流程图; [0040] Figure 14 is a flowchart of the main program of the present invention transmits the microcontroller;

[0041] 附图15是本发明的接收器中微控制器的主程序工作流程图; [0041] Figure 15 is a flowchart of the main program of the present invention, the receiver microcontroller;

[0042] 具体实施方法 [0042] DETAILED DESCRIPTION Method

[0043] 下面通过实施例,并结合附图,对本发明的技术方案作进一步具体的说明。 [0043] The following Examples, in conjunction with the accompanying drawings, technical solutions of the present invention will be further specifically described.

[0044] 实施例:在图1中视频源101上的HDMI接口或DVI接口102作为视频源的输出接口。 [0044] Example: HDMI interface or a DVI interface 102 in FIG. 1, the video source 101 as an output interface of the video source. 通常情况下,视频源101是一个蓝光DVD播放机、HD DVD播放机、个人电脑、视频游戏机、数字机顶盒等视频播放设备。 Typically, the video source 101 is a Blu-ray DVD players, HD DVD players, personal computers, video game consoles, digital set-top boxes and other video playback device.

[0045] 视频源101的输出端口102与本发送器105的HDMI接口或DVI接口104之间,通过另外一根短距离的普通HDMI电缆或DVI电缆103相连接,该电缆103也可以使用HDMI 至DVI转换电缆、或DVI至HDMI转换电缆。 Between [0045] The output port 102 and the video source 101 of the present DVI or HDMI interface transmitter 105, interface 104, connected by a common DVI cable or HDMI cable 103 a short distance Further, the HDMI cable 103 may also be used to DVI conversion cable, converted to the HDMI or DVI cable.

[0046] 本发明中发送器105包含激光驱动器、VCSEL激光发射器、微控制器、低压差分信号到TTL信号转换电路、激光探测器组成。 [0046] In the present invention, the transmitter 105 comprises a laser driver, the VCSEL laser transmitter, a microcontroller, a low voltage differential signal to the TTL signal converting circuit, a laser detector. 他们用来实现用五根光纤107传输数字视频信号和接受控制信号。 They implemented for transmission of digital video signals 107 and receive control signals five optical fibers. 通常情况下,它有一个HDMI接口或DVI接口104(取决于所针对的应用),作为视频信号和控制信号的输入端口,和5个LC光纤接口106作为转换后光信号的输出和接收回传光信号的端口。 Typically, it has a DVI interface or HDMI interface 104 (depending on the application for a), as a video signal and a control signal input port, and 5 LC optical interface 106 converts the output of the optical signal and receives a return port optical signal.

[0047] 接收器109的5个LC光纤接口108,通过五根光纤107与发送器105的5个LC光 [0047] The receiver 109 5 LC fiber optic interface 108, through five optical fibers 107 and the light transmitter 105 5 LC

纤接口106对应连接。 Fiber interface 106 correspondingly. 通常情况下,五根光纤为多模光纤。 Typically, five optical fibers is a multimode fiber.

[0048] 接收器109包含激光探测器,限幅放大器,微控制器,VCSEL激光发射器组成。 [0048] The receiver 109 comprises a laser detector, limiting amplifier, microcontroller, the VCSEL laser transmitter components. 通常情况下,它有一个HDMI接口或DVI接口110 (取决于所针对的显示器113的输入接口112) 作为视频信号和控制信号的输出端口,和5个LC光纤接口108作为接收光信号的输出和输出回传光信号的端口。 In general, it has (depending on the input interface 113 for display 112) a DVI interface or HDMI interface to an output port 110 as a video signal and a control signal, and LC optical fiber 5 as the output interface 108 and the received optical signal output port of the optical return signal.

[0049] 显示器113的HDMI接口或DVI接口112和接收器的HDMI接口或DVI接口110之间,通过另外一根短距离的普通HDMI电缆或DVI电缆111相连接,该电缆111也可以使用HDMI至DVI转换电缆、或DVI至HDMI转换电缆。 Between [0049] DVI or HDMI interface 112 interfaces display 113 and receiver DVI interface or HDMI interface 110, connected by a cable with a normal HDMI or DVI cable short distance 111, the HDMI cable 111 may also be used to DVI conversion cable, converted to the HDMI or DVI cable.

[0050] 显示器113是用来显示传输的视频/音频的内容。 [0050] Display 113 is used to display the contents of the video / audio transmission. 通常情况下,显示器113是一个高清晰度液晶电视机、等离子电视、DLP电视、电脑液晶显示器或其他显示设备。 Typically, high-resolution display 113 is a liquid crystal television, a plasma television, DLP television, computer monitor or other liquid crystal display device.

[0051] 在图2中,描绘了发送器的主要功能块,此乃图1中发送器105的具体实现。 [0051] In Figure 2 is depicted the main functional blocks of the transmitter, FIG. 1 which was embodied transmitter 105.

7[0052] HDMI接口或DVI接口201用来连接HDMI或DVI电缆,如图1中的HDMI电缆或DVI 电缆103。 7 [0052] HDMI interface or a DVI interface 201 is connected to HDMI or DVI cable, as shown in 1 HDMI cable or a DVI cable 103. 视频源的四路TMDS信号和控制信号就是通过该电缆接收的。 Four TMDS source video signal and a control signal is received over the cable.

[0053] HDMI 或DVI 包含四路TMDS(Transition Minimized Differential Signaling,最小化传输差分信号)高速信号和4个控制信号。 [0053] HDMI or DVI comprising (Transition Minimized Differential Signaling, Minimized Differential Signaling) signal and a high-speed four four control signals TMDS. 接收器从HDMI接口或DVI接口中接受到的四路TMDS高速信号是TMDS_0,TMDS_1, TMDS_2, TMDS_CLK。 Receiving from the DVI interface or the HDMI interface in the received signal is a high-speed four TMDS TMDS_0, TMDS_1, TMDS_2, TMDS_CLK. 与视频源相连接的四路控制信号是SCL,SDA, CEC, Hot Plug Detect。 Four video source is connected to a control signal SCL, SDA, CEC, Hot Plug Detect.

[0054] 202是4颗激光器驱动芯片,203是4颗VCSEL激光发射器,202和203完成四路TMDS高速电信号转换成四路光信号的实现。 [0054] 202 is a laser drive chip 4, 203 is a VCSEL laser transmitter 4, 202, and 203 to complete the conversion to achieve high-speed electric signal into four four TMDS optical signal. 4颗激光器驱动IC分别接收TMDS_0,TMDS_1, TMDS_2,TMDS_CLK这四路高速电信号,并将其转换成相应的偏置电流和调制电流,偏置电流和调制电流驱动VCSEL激光器(TOSA)发出相应的调制光信号。 The laser driving IC 4 receives TMDS_0, TMDS_1, TMDS_2, TMDS_CLK which four high-speed electrical signals, and converts it into a corresponding bias current and modulation current, the bias current and modulation current drive VCSEL laser (the TOSA) receive a corresponding modulated optical signal. 4颗VCSEL激光器安装在发送器105的LC光纤接口106中,通过光纤传输到接收器109。 Four VCSEL laser transmitter mounted in the LC fiber optic interface 106, 105, transmitted through the optical fiber 109 to the receiver. 通常情况下,激光驱动器芯片是MAX3996 (或其他类似激光驱动芯片),为常用件。 Typically, The MAX3996 laser driver chip (or other similar laser driver chip) as a common member. VCSEL激光器(TOSA)是2. 5Gbps速率、LC接口、直调式VCSEL激光器,为常用件。 VCSEL laser (the TOSA) is 2. 5Gbps rate, the LC interfaces, direct modulated VCSEL laser, as common parts.

[0055] 206是一颗激光探测器(ROSA),它安装在发送器105的LC光纤接口106中,通过一根光纤,接收从接收器回传的光信号,并转换成LVDS(Low Voltage DifferentialSignaling,低电压差分信号)。 [0055] 206 is a laser detector (the ROSA), which is mounted on the transmitter interface 106 LC fiber 105 by an optical fiber receives the optical signal transmitted back from the receiver, and is converted into LVDS (Low Voltage DifferentialSignaling , low voltage differential signals). 低压差分信号到TTL信号转换电路205接收激光探测器(ROSA)输出的LVDS信号,并转换成TTL信号,输入到微控制器204的USART串口总线的接收端。 Low voltage differential signal to the TTL signal converting circuit 205 receives the laser detector LVDS signal (the ROSA) output, and converted into a TTL signal, input to the reception terminal USART serial bus 204 of the microcontroller. 微控制器20四根据接收到的TTL信号内容,设置I2C总线上的EDID信息、 CEC和Hot Plug Detect的信号状态。 The microcontroller 20 four TTL signal received content, the EDID information is provided on the I2C bus, and a CEC signal state of the Hot Plug Detect. 通常情况下,激光探测器(ROSA) 206是2. 5Gbps速率、 LC接口、PIN-TIA激光探测器,为常用件。 Typically, a laser detector (ROSA) 206 2. 5Gbps rate is, the LC interfaces, PIN-TIA laser detector, for the common parts. 低压差分信号到TTL信号转换电路205是高速、 低功耗比较器MAX998 (或其他类似芯片),为常用件。 Low voltage differential signal to the TTL signal converting circuit 205 is a high speed, low power comparators MAX998 (or other similar chips), as a common member. 微控制器是AVR单片机ATMEGA8L (或其他类似单片机),具备I2C总线和USART串口总线,为常用件。 ATMEGA8L AVR microcontroller is a microcontroller (or other similar microcontrollers), comprising USART serial bus and I2C bus, as common parts.

[0056] 图3是发送器105中,TMDSJ)+/-高速差分电信号转换成光信号的电路示意图。 [0056] FIG. 3 is a transmitter 105, TMDSJ) +/- speed differential electrical signals into optical signals of a circuit diagram. 此乃TMDS高速电信号转换成光信号的具体实现。 This is TMDS high speed electrical signals into optical signals embodied.

[0057] 图4是发送器105中,TMDS_1+/"高速差分电信号转换成光信号的电路示意图。此乃TMDS高速电信号转换成光信号的具体实现。 [0057] FIG. 4 is a transmitter 105, TMDS_1 + / "high-speed differential conversion circuit schematic of an electrical signal into an optical signal. This is a high speed electrical signal into an optical TMDS signal embodied.

[0058] 图5是发送器105中,TMDS_2+/-高速差分电信号转换成光信号的电路示意图。 [0058] FIG. 5 is a transmitter 105, TMDS_2 +/- speed differential electrical signals into optical signals of a circuit diagram. 此乃TMDS高速电信号转换成光信号的具体实现。 This is TMDS high speed electrical signals into optical signals embodied.

[0059] 图6是发送器105中,TMDS_CLK+/_高速差分电信号转换成光信号的电路示意图。 [0059] FIG. 6 is a transmitter 105, TMDS_CLK + / _ speed differential electrical signals into optical signals of a circuit diagram. 此乃TMDS高速电信号转换成光信号的具体实现。 This is TMDS high speed electrical signals into optical signals embodied.

[0060] 图7是发送器105中,微控制器接收从接收器回传光信号的电路示意图;此乃图2 中204,205,206的具体实现。 [0060] FIG. 7 is a transmitter 105, microcontroller receives from the receiver a circuit diagram of an optical signal return; 204, 205, which was a specific implementation of FIG. 2.

[0061] 在图8中,描绘了接收器的主要功能块,此乃图1中接收器109的具体实现。 [0061] In FIG. 8 is depicted the main functional blocks of the receiver, the receiver in FIG. 1 which was embodied 109.

[0062] HDMI接口或DVI接口801用来连接HDMI或DVI电缆,如图1中的HDMI电缆或DVI 电缆111。 [0062] DVI or HDMI interface to an interface 801 for connecting HDMI or DVI cable, the cable 1 HDMI or DVI cable 111 shown in FIG. 显示器的四路TMDS信号和控制信号就是通过该电缆输出的。 Four TMDS signals and control signals over the cable is a display output.

[0063] 接收器从HDMI接口或DVI接口中输出的四路TMDS高速信号是TMDS_0,TMDS_1, TMDS_2,TMDS_CLK。 [0063] received from the DVI interface or the HDMI interface output signal is a four-speed TMDS TMDS_0, TMDS_1, TMDS_2, TMDS_CLK. 与显示器相连接的四路控制信号是SCL,SDA,CEC,Hot Plug Detect。 Quad display and is connected to a control signal SCL, SDA, CEC, Hot Plug Detect.

[0064] 802是4颗限幅放大器芯片,803是4颗激光探测器(ROSA),802和803完成四路光信号到TMDS高速电信号的实现。 [0064] 802 is a limiting amplifier chip 4, 803 is a laser detector 4 (the ROSA), 802 and 803 to complete the implementation of four optical signals TMDS high speed electrical signals. 4颗激光探测器(ROSA)分别接收相应的四路光信号,并将其转换成相应的TMDS_0,TMDS_1, TMDS_2, TMDS_CLK这四路高速电信号,经过限幅放大器放大信号幅度后通过HDMI接口或DVI接口801输出给显示器。 After the four laser detector (the ROSA) each receive respective four optical signals, and converts it into a corresponding TMDS_0, TMDS_1, TMDS_2, TMDS_CLK which four high-speed electrical signal, amplifies the signal after the amplitude limiting amplifier or via HDMI DVI interface 801 outputs to the display. 4颗激光探测器(ROSA)安装在接收器109的LC光纤接口108中,通过光纤接收来自发送器105的四路光信号。 4 laser detector (the ROSA) mounted in the receiver fiber interface 108 LC 109, four light reception signals from the transmitter 105 through the optical fiber. 通常情况下,限幅放大器芯片是MAX3768 (或其他类似激光驱动芯片),为常用件。 Normally, a limiting amplifier chip MAX3768 (or other similar laser driver chip) as a common member. 激光探测器(ROSA)是2. 5Gbps速率、LC接口、PIN-TIA激光探测器,为常用件。 Laser detector (the ROSA) is 2. 5Gbps rate, the LC interfaces, PIN-TIA laser detector, for the common parts.

[0065] 接收器中微控制器804,通过HDMI接口或DVI接口801里I2C总线、CEC和Hot Plug Detect信号,读取显示器EDID信息和CEC状态,并将其做串行化处理,通过微控制器的USART串口输出到激光器驱动电路805。 [0065] The receiver microcontroller 804, via HDMI or DVI interface 801 in the I2C bus, CEC and Hot Plug Detect signal, and the CEC EDID information reading display state, and to do its serial processing through the micro control USART's serial output to the laser driving circuit 805. 激光器驱动电路805是MOSFET N、电阻、电容组成的一个电流开关电路,根据USART串口信号的高低电平,转换成电流信号,驱动VCSEL激光器806(T0SA)发出相应的调制光信号。 The laser driving circuit 805 are MOSFET N, resistors, capacitors composed of a current switching circuit, according to the high and low USART serial signal into a current signal to drive VCSEL laser 806 (T0SA) issued respective modulated optical signals. 通常情况下,微控制器是AVR单片机ATMEGA8L(或其他类似单片机),具备I2C总线和USART串口总线,为常用件。 Typically, the microcontroller is ATMEGA8L AVR microcontroller (MCU or the like), and includes a USART serial bus I2C bus as common parts. 激光器驱动电路是MOSFET N芯片,为常用件。 A laser drive circuit MOSFET N chip as a common member. VCSEL激光器806 (TOSA)是2. 5Gbps速率、LC接口、直调式VCSEL激光器,为常用件 VCSEL laser 806 (TOSA) is 2. 5Gbps rate, the LC interfaces, direct modulated VCSEL lasers, commonly used member

[0066] MAX998 (或其他类似芯片),为常用件。 [0066] MAX998 (or other similar chips), as a common member. 微控制器是AVR单片机ATMEGAgL (或其他类似单片机),具备I2C总线和USART串口总线,为常用件。 The microcontroller is AVR microcontroller ATMEGAgL (or similar microcontrollers), comprising USART serial bus and I2C bus, as common parts.

[0067] 图9是接收器109中,光信号还原成TMDS_0信号的电路示意图,此乃光信号转换成TMDS高速电信号的具体实现。 [0067] FIG. 9 is the receiver 109, the optical signal to restore a circuit diagram TMDS_0 signal, which was converted TMDS high-speed optical signal into an electric signal specific implementation.

[0068] 图10是接收器109中,光信号还原成TMDS_1信号的电路示意图,此乃光信号转换成TMDS高速电信号的具体实现。 [0068] FIG. 10 is the receiver 109, the optical signal to restore a circuit diagram TMDS_1 signal, which was converted TMDS high-speed optical signal into an electric signal specific implementation.

[0069] 图11是接收器109中,光信号还原成TMDS_2信号的电路示意图,此乃光信号转换成TMDS高速电信号的具体实现。 [0069] FIG. 11 is the receiver 109, the optical signal to restore a circuit diagram TMDS_2 signal, which was converted TMDS high-speed optical signal into an electric signal specific implementation.

[0070] 图12是接收器109中,光信号还原成TMDS_CLK信号的电路示意图,此乃光信号转换成TMDS高速电信号的具体实现。 [0070] FIG. 12 is the receiver 109, the optical signal to restore a circuit diagram TMDS_CLK signal, which was converted TMDS high-speed optical signal into an electric signal specific implementation.

[0071] 图13是接收器109中,微控制器发送回传光信号的电路示意图;此乃图8中804、 805、806的具体实现。 [0071] FIG. 13 is the receiver 109, the microcontroller sends a circuit diagram of an optical signal return; FIG. 8 which was 804, 805, 806 is embodied.

[0072] 图14是发送器105中微控制器204的主程序工作流程图。 [0072] FIG. 14 is a flowchart of the main routine in the microcontroller 105 the transmitter 204. 此乃发送器中微控制器正常工作的具体实现。 This is the transmitter of the normal operation of the microcontroller implementation.

[0073] 图15是接收器109中微控制器804的主程序工作流程图。 [0073] FIG. 15 is a flowchart of the main routine in the microcontroller 804 of the receiver 109. 此乃接收器中微控制器正常工作的具体实现。 This is the receiver in normal operation of the microcontroller implementation.

Claims (10)

  1. 一种用五根光纤超长距离延长HDMI或DVI接口连接距离的方法,包括视频源和显示器,视频源和显示器上均设有HDMI或DVI接口,其特征在于所述的方法是通过发送器将视频源上HDMI或DVI接口的原始四路TMDS信号转换成四路光信号,通过四根光纤传输给接收器,并且发送器包含一个激光探测器,通过另外一根光纤接收从接收器发回的光信号,将其转换成低压差分信号,再通过转换电路将低压差分信号转换成TTL信号输入给微控制器,微控制器翻译出TTL信号中包含的显示器EDID信息和CEC信号,供视频源读取。 A Fifth ultra-long haul optical fibers extend from the HDMI or DVI interface method used, include a video source and a display, and the display on the video source has HDMI or DVI interface, said method characterized by the transmitter converting the video source DVI interface or HDMI TMDS signal into four four original optical signal transmitted through the four optical fibers to a receiver, and the transmitter comprises a laser detector, receiving back from the receiver through another optical fiber an optical signal, converts it into a low voltage differential signal, and then through the conversion circuit converts the differential signal into low voltage TTL signal is input to the microcontroller, the microcontroller monitors the EDID information and translated TTL CEC signal contained in the signal, for reading a video source take.
  2. 2.根据权利要求1所述的用五根光纤超长距离延长HDMI或DVI接口连接距离的方法, 其特征在于所述的发送器通过五根光纤连接到接收器,接收器接收四路光信号并将其还原成原始的四路TMDS信号,输出到HDMI或DVI接口,接收器中还包含微控制器,通过显示器的HDMI接口或DVI接口,读取显示器EDID信息和CEC信号,将读取到的显示器信息通过转换电路转化成光信号,通过另外一根光纤发送回发送器。 2. The method of ultra-long distance with five optical fibers extend from the HDMI or DVI interface according to claim 1, characterized in that the transmitter connected to the receiver through five optical fibers, four optical receiver receives signals and restore it to the original four TMDS signal and outputs to the HDMI or DVI connector, the receiver further includes a microcontroller, via HDMI or DVI interface display, the EDID reading display information and the CEC signal, the read display information into an optical signal through the switching circuit, sent back by a further fiber optic transmitters.
  3. 3.根据权利要求1或2所述的用五根光纤超长距离延长HDMI或DVI接口连接距离的方法,其特征在于所述的发送器设有电/光转换电路,它可以将视频源的HDMI或DVI接口输入的四路原始TMDS信号转换为四路光信号,通过四根光纤传输到接收器。 3. The method of connection interface distance with five fiber ultra-long extended HDMI or DVI claim 1 or claim 2, wherein said transmitter is provided with electrical / optical conversion circuit, which can be the video source four DVI or HDMI interface input original TMDS signal is converted into four optical signals, transmitted to the receiver through four optical fibers.
  4. 4.根据权利要求1或2所述的用五根光纤超长距离延长HDMI或DVI接口连接距离的方法,其特征在于所述的接收器设有光/电转换电路,它可以将发送器通过四路光纤传输来的光信号,转换成原始TMDS信号,输出到显示器的HDMI或DVI接口。 4. The method of ultra-long distance with five optical fibers extend from the HDMI or DVI interface of claim 1 or claim 2, wherein said receiver is provided with optical / electrical conversion circuit that may be transmitted through four optical fiber transmission to an optical signal, is converted into the original TMDS signal, output to the display HDMI or DVI interfaces.
  5. 5.根据权利要求1或2所述的用五根光纤超长距离延长HDMI或DVI接口连接距离的方法,其特征在于所述的发送器里包含一个激光探测器和转换电路,转换接收器发回的光信号为低压差分信号,并通过转换电路转换为TTL信号,输入给微控制器。 The method of ultra-long distance HDMI or DVI interface extend from five optical fibers, wherein the 1 or the transmitter contains a laser detector and conversion circuitry, conversion receiver as claimed in claim hair the optical signal back into a low voltage differential signal, and converts the TTL signal converting circuit, an input to the microcontroller.
  6. 6.根据权利要求1、2或5所述的用五根光纤超长距离延长HDMI或DVI接口连接距离的方法,其特征在于所述的发送器里包含的微控制器,其接收激光探测器和转换电路输出的TTL信号,并还原为显示器的EDID信息和CEC信号,通过视频源的HDMI或DVI接口中的SDA、SCL、CEC、Hot Plug Detect 这4 个PIN,供视频源读取。 6. The method of ultra long distance fibers with five HDMI or DVI interface extension distance of 1, 2 or 5 as claimed in claim, characterized in that the microcontroller contains a transmitter that receives laser detector TTL signal conversion circuit and outputted, and revert to the EDID information of the display and the CEC signal, HDMI or DVI video source interfaces in the SDA, SCL, CEC, Hot Plug Detect the PIN four, for reading a video source.
  7. 7.根据权利要求1、2或5所述的用五根光纤超长距离延长HDMI或DVI接口连接距离的方法,其特征在于所述的发送器里包含的微控制器,其控制发送器里四路激光发射器发出激光或不发出激光,以便让接收器的激光探测器电路识别目前发送器的接收回传光信号是否成功,接收成功后,微控制器控制四路激光发射器电路,开始将原始TMDS信号转换为光信号。 The method of optical fibers over long distances with five HDMI or DVI interface extension distance of 1, 2 or claim 5, characterized in that the microcontroller contains a transmitter which controls the transmitter in four laser emitter emits laser emits a laser or not to allow the receiver to identify the laser detector circuit receives the current transmitter signal whether the optical return successfully, after the successful reception, the microcontroller controls four laser transmitter circuit starts the original TMDS signal is converted into an optical signal.
  8. 8.根据权利要求1或2所述的用五根光纤超长距离延长HDMI或DVI接口连接距离的方法,其特征在于所述的接收器里包含一个微控制器,其通过显示器的HDMI或DVI接口中的SDA、SCL、CEC、Hot Plug Detect这4个PIN,读取显示器的EDID信息和CEC信号并将其做串行处理,并通过转换电路,将其转换为光信号,通过另外一根光纤回传到发送器。 8. A method to extend the five fiber ultra-long distance HDMI or DVI interface of claim 1 or claim 2, characterized in that the receiver contains a microcontroller, a display by a DVI or HDMI interface SDA, SCL, CEC, Hot Plug Detect four the PIN, the EDID reading display information and make it CEC signal and serial processing, and through the switching circuit, it is converted into an optical signal by an additional back to the fiber optic transmitter.
  9. 9.根据权利要求1、2或8所述的用五根光纤超长距离延长HDMI或DVI接口连接距离的方法,其特征在于所述的接收器里包含的微控制器,监视接收器里四路激光探测器电路中Signal Detected信号,判断发送器接收光信号的状态,从而判断发送器接收从接收器发送的光信号是否接收成功,如果发送器光信号接收是失败,接收器重新发送EDID信息和CEC信号。 9. The method of five optical fibers extend over long distances from the HDMI or DVI interface with claim 1 or claim 8, characterized in that the microcontroller contains a receiver, monitor receiver in four path of the laser detector circuit signal Detected signal, the transmitter determines the state of the received light signal to determine the transmitter the receiver receives the optical signal transmitted is received from the successful if transmitted optical signal receiving failure, the receiver re-transmits EDID information and CEC signals.
  10. 10.根据权利要求1、2、5、6、7、8或9所述的用五根光纤超长距离延长HDMI或DVI接口连接距离的方法,其特征在于所述的接收器里包含的微控制器,在发送EDID信息和CEC信号成功后,通过显示器的HDMI或DVI接口,实时监视CEC信号,并通过转换电路,将CEC信号转换为光信号,不断传输到发送器。 10. A method of ultra long distance fibers with five HDMI or DVI interface extension distance 1,2,5,6,7,8 or claim 9, wherein said micro-receiver contains the the controller, after transmitting the CEC signal EDID information and success, through the display interface to the HDMI or DVI, real-time monitoring CEC signal, through the switching circuit and the CEC signal into an optical signal, and continuously transmitted to the transmitter.
CN 200910062750 2009-06-22 2009-06-22 Method for extending HDMI or DVI interface connection at ultra-long distance by using five optical fibers CN101931466A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
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 Data transmission means Hdmi
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

Cited By (6)

* Cited by examiner, † Cited by third party
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 Data transmission means Hdmi
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

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