CN101944347A

CN101944347A - Adapter

Info

Publication number: CN101944347A
Application number: CN2009101598350A
Authority: CN
Inventors: 黄新武; 黄国勋; 陈建荣
Original assignee: Asustek Computer Inc
Current assignee: Asustek Computer Inc
Priority date: 2009-07-07
Filing date: 2009-07-07
Publication date: 2011-01-12
Anticipated expiration: 2029-07-07
Also published as: CN101944347B

Abstract

The invention relates to an adapter which comprises an interface socket, a digital audio-visual display interface plug, a repeater, a low-voltage-drop voltage stabilizer and an impedance unit. The interface socket is a digital video interface socket or a high-resolution multimedia audio-video interface socket. The repeater is electrically connected between the interface socket and the digital audio-visual display interface plug and is used for executing signal enhancement operation. The low voltage drop stabilizer comprises a power input end and a power output end, wherein the power input end is electrically connected with the interface socket, and the power output end is electrically connected with the digital audio-visual display interface plug. The impedance unit is electrically connected between the power output end of the low-voltage drop voltage stabilizer and the interface socket. The signal source device can operate according to the function of the adapter and output the digital audio-visual display signal required by the signal receiving device.

Description

Adapter

技术领域technical field

本发明涉及一种转接器，尤指一种可将具有数字影音显示接口传输规格的信号通过数字视讯接口或高分辨率多媒体影音接口而传送的转接器。The invention relates to an adapter, in particular to an adapter capable of transmitting signals with digital audio-visual display interface transmission specifications through a digital video interface or a high-resolution multimedia audio-visual interface.

背景技术Background technique

一般而言，目前在数字影音播放装置中的传输接口的信号传输规格以高速数字影音信号传输规格为主流，例如高品质多媒体影音接口(high-definition multimediainterface；HDMI)传输规格、数字视讯接口(Digital Visual Interface；DVI)传输规格、以及数字影音显示(DisplayPort；DP)接口传输规格等信号传输规格。若要在同一信号来源装置上支持上述多种接口传输规格时，通常已知技术会针对每一种传输接口配置相对应的接口脚座，因而导致接口脚座数目提高与接口面积增加的缺点。为解决上述缺点，就提供各种信号转换器以降低信号来源装置所需的接口脚座数目，譬如DP至DVI转换器、DP至HDMI转换器、以及DVI至HDMI转换器等，但上述各种转换器主要根据信号模式转换运作以执行接口处理，所以电路架构相当复杂。Generally speaking, the signal transmission specifications of the transmission interface in the digital audio-visual playback device are currently dominated by high-speed digital audio-visual signal transmission specifications, such as high-definition multimedia interface (high-definition multimedia interface; HDMI) transmission specification, digital video interface (Digital Visual Interface; DVI) transmission specification, and digital audio-visual display (DisplayPort; DP) interface transmission specification and other signal transmission specifications. In order to support the above-mentioned multiple interface transmission specifications on the same signal source device, the known technology generally configures corresponding interface sockets for each transmission interface, which leads to the disadvantages of increasing the number of interface sockets and increasing the interface area. In order to solve the above shortcomings, various signal converters are provided to reduce the number of interface pins required by the signal source device, such as DP to DVI converters, DP to HDMI converters, and DVI to HDMI converters, etc., but the above various The converter mainly operates according to the signal mode conversion to perform interface processing, so the circuit structure is quite complicated.

此外，由于DP接口的信号传输方式采用业界标准的ANSI8B 10B，以类似网络分组的方式进行传输，异于DVI与HDMI接口所使用的最小化转移差动信号(Transition Minimized Differential Signaling；TMDS)传输方式，使DP接口可以用更少的线路达到高传输频宽(譬如10Gbps)，因此具DP接口的显示面板也就渐趋流行。然而，目前并没有DVI至DP转接器与HDMI至DP转接器，所以无法在不藉助信号模式转换运作下，将具数字影音显示接口传输规格的信号通过数字视讯接口或高分辨率多媒体影音接口而传送。In addition, since the signal transmission method of the DP interface adopts the industry standard ANSI8B 10B, it is transmitted in a similar network packet manner, which is different from the Transition Minimized Differential Signaling (TMDS) transmission method used by the DVI and HDMI interfaces. , so that the DP interface can use fewer lines to achieve high transmission bandwidth (such as 10Gbps), so the display panel with DP interface is becoming more and more popular. However, there are currently no DVI to DP adapters and HDMI to DP adapters, so it is impossible to transfer signals with digital audio and video display interface transmission specifications through digital video interface or high-resolution multimedia audio and video without the help of signal mode conversion. interface to transmit.

发明内容Contents of the invention

因此，本发明的主要目的即在于提供转接器以实现将具数字影音显示接口传输规格的信号通过数字视讯接口或高分辨率多媒体影音接口而传送。Therefore, the main purpose of the present invention is to provide an adapter to transmit the signal having the transmission specification of the digital audio-visual display interface through the digital video interface or the high-resolution multimedia audio-visual interface.

本发明揭露一种转接器，用以将具有数字影音显示接口传输规格的信号通过数字视讯接口或高分辨率多媒体影音接口而传送。该转接器包含有一接口插座；一数字影音显示接口插头；一中继器，电连接于该接口插座与该数字影音显示接口插头之间，用以执行信号增强运作；一低压降稳压器，包含一电源输入端与一电源输出端，其中该电源输入端电连接于该接口插座，该电源输出端电连接于该数字影音显示接口插头；以及一阻抗单元，电连接于该低压降稳压器的电源输出端与该接口插座之间。The invention discloses an adapter, which is used to transmit the signal with the transmission specification of the digital audio-visual display interface through the digital video interface or the high-resolution multimedia audio-visual interface. The adapter includes an interface socket; a digital audio-visual display interface plug; a repeater, electrically connected between the interface socket and the digital audio-visual display interface plug, for performing signal enhancement operation; a low-drop voltage regulator , including a power input end and a power output end, wherein the power input end is electrically connected to the interface socket, the power output end is electrically connected to the digital audio-visual display interface plug; and an impedance unit is electrically connected to the low voltage drop stabilizer between the power output terminal of the transformer and the interface socket.

本发明另揭露一种转接器，用以将具有数字影音显示接口传输规格的信号通过数字视讯接口或高分辨率多媒体影音接口而传送。该转接器包含有一接口插座；一数字影音显示接口插头；一第一耦合单元，电连接于该接口插座与该数字影音显示接口插头之间，用以将从该接口插座输入的数据信号传输至该数字影音显示接口插头；一低压降稳压器，包含一电源输入端与一电源输出端，其中该电源输入端电连接于该接口插座，该电源输出端电连接于该数字影音显示接口插头；以及一阻抗单元，电连接于该低压降稳压器的电源输出端与该接口插座之间。The present invention also discloses an adapter, which is used to transmit the signal with the transmission specification of the digital audio-visual display interface through the digital video interface or the high-resolution multimedia audio-visual interface. The adapter includes an interface socket; a digital audio-visual display interface plug; a first coupling unit, electrically connected between the interface socket and the digital audio-visual display interface plug, in order to transmit the data signal input from the interface socket To the digital audio-visual display interface plug; a low-drop voltage regulator, including a power input end and a power output end, wherein the power input end is electrically connected to the interface socket, and the power output end is electrically connected to the digital audio-visual display interface a plug; and an impedance unit electrically connected between the power output end of the low-dropout regulator and the interface socket.

附图说明Description of drawings

图1为本发明第一实施例的转接器的电路示意图。FIG. 1 is a schematic circuit diagram of an adapter according to a first embodiment of the present invention.

图2为本发明第二实施例的转接器的电路示意图。FIG. 2 is a schematic circuit diagram of an adapter according to a second embodiment of the present invention.

具体实施方式Detailed ways

请参考图1，图1为本发明第一实施例的转接器100的电路示意图。如图1所示，转接器100包含接口插座110、数字影音显示接口插头120、中继器(Repeater)130、导线135、低压降稳压器(Low-Dropout Regulator)140、阻抗单元150与多个耦合单元161～164。转接器100用来耦接信号来源装置180与信号接收装置190，使信号来源装置180可根据转接器100的功能运作，而输出信号接收装置190所需的数字影音显示信号S_DP。信号来源装置180可为电脑主机或多功能数字碟片(Digital Versatile Disc；DVD)播放器，信号接收装置190可为液晶显示装置。接口插座110为数字视讯接口插座或高分辨率多媒体影音接口插座。Please refer to FIG. 1 , which is a schematic circuit diagram of an adapter 100 according to a first embodiment of the present invention. As shown in FIG. 1 , the adapter 100 includes an interface socket 110, a digital audio-visual display interface plug 120, a repeater (Repeater) 130, a wire 135, a low-dropout regulator (Low-Dropout Regulator) 140, an impedance unit 150 and A plurality of coupling units 161-164. The adapter 100 is used for coupling the signal source device 180 and the signal receiving device 190 , so that the signal source device 180 can operate according to the function of the adapter 100 and output the digital audio-visual display signal S _DP required by the signal receiving device 190 . The signal source device 180 can be a host computer or a digital versatile disc (Digital Versatile Disc; DVD) player, and the signal receiving device 190 can be a liquid crystal display device. The interface socket 110 is a digital video interface socket or a high-resolution multimedia video interface socket.

耦合单元161电连接于接口插座110与中继器130之间，用以将从接口插座110输入的数字影音显示信号S_DP传输至中继器130。耦合单元162电连接于中继器130与数字影音显示接口插头120之间，用以将从中继器130输出的数字影音显示信号S_DP传输至数字影音显示接口插头120。中继器130电连接于耦合单元161与耦合单元162之间，用来执行信号增强运作以避免衰减所传输的数字影音显示信号S_DP。耦合单元163通过辅助传输线165而电连接于接口插座110与数字影音显示接口插头120之间，耦合单元164通过辅助传输线166而电连接于接口插座110与数字影音显示接口插头120之间，其中辅助传输线165与166所提供的辅助通道(Auxiliary Channel)168用来传输辅助差动信号S_AUX以执行信号传输同步运作。导线135电连接于接口插座110与数字影音显示接口插头120之间，用以传输热插拔检测(Hot-Plug Detect)信号HPD。The coupling unit 161 is electrically connected between the interface socket 110 and the repeater 130 for transmitting the digital audio-visual display signal S _DP input from the interface socket 110 to the repeater 130 . The coupling unit 162 is electrically connected between the repeater 130 and the digital audio-visual display interface plug 120 for transmitting the digital audio-visual display signal S _DP output from the repeater 130 to the digital audio-visual display interface plug 120 . The repeater 130 is electrically connected between the coupling unit 161 and the coupling unit 162 , and is used for performing a signal enhancement operation to avoid attenuation of the transmitted digital audio-visual display signal S _DP . The coupling unit 163 is electrically connected between the interface socket 110 and the digital audio-visual display interface plug 120 through the auxiliary transmission line 165, and the coupling unit 164 is electrically connected between the interface socket 110 and the digital audio-visual display interface plug 120 through the auxiliary transmission line 166, wherein the auxiliary The auxiliary channel (Auxiliary Channel) 168 provided by the transmission lines 165 and 166 is used to transmit the auxiliary differential signal S _AUX to perform signal transmission synchronous operation. The wire 135 is electrically connected between the interface socket 110 and the digital audio-visual display interface plug 120 for transmitting a hot-plug detection (Hot-Plug Detect) signal HPD.

低压降稳压器140包含电源输入端141与电源输出端142，其中电源输入端141电连接于接口插座110，电源输出端142电连接于数字影音显示接口插头120，用以提供信号接收装置190的数字影音显示输入接口191所需的电源DP PWR。低压降稳压器140另可供电至中继器130以执行信号增强运作，亦即低压降稳压器140的电源输出端142另可电连接于中继器130的电源端(未显示)。低压降稳压器140可为5V至3.3V稳压器，用来将信号来源装置180所提供的5V电压源稳压为3.3V电压源。阻抗单元150电连接于低压降稳压器140的电源输出端142与接口插座110之间。更精确地说，阻抗单元150电连接于接口插座110的一接地/遮蔽(Shield)脚位113，譬如数字视讯接口插座的接地/遮蔽脚位或高分辨率多媒体影音接口插座的接地/遮蔽脚位。在一实施例中，当接口插座110为数字视讯接口插座时，接地/遮蔽脚位113可为数字视讯接口插座的第三脚位(遮蔽脚位)。信号来源装置180包含检测信号产生单元188，可用来耦接至接地/遮蔽脚位113，并据以产生检测信号Sdet。换句话说，在信号来源装置180的接口插座182中，用以耦接至接地/遮蔽脚位113的脚位189并非直接耦合到接地端，而电连接于检测信号产生单元188。阻抗单元150的阻抗值可根据检测信号产生单元188的电路架构而设定，以图1所示的检测信号产生单元188的电路架构而言，阻抗单元150的阻抗值可设为零。在图1所示的实施例中，耦合单元161包含电容171，耦合单元162包含电容172，耦合单元163包含电容173，耦合单元164包含电容174，阻抗单元150包含电阻175。The low-dropout regulator 140 includes a power input terminal 141 and a power output terminal 142, wherein the power input terminal 141 is electrically connected to the interface socket 110, and the power output terminal 142 is electrically connected to the digital audio-visual display interface plug 120 to provide a signal receiving device 190 The digital audio-visual display input interface 191 requires power DP PWR. The low dropout voltage regulator 140 can also supply power to the repeater 130 to perform signal enhancement operation, that is, the power output terminal 142 of the low dropout voltage regulator 140 can also be electrically connected to the power supply terminal (not shown) of the repeater 130 . The low dropout voltage regulator 140 can be a 5V to 3.3V voltage regulator, and is used to stabilize the 5V voltage source provided by the signal source device 180 into a 3.3V voltage source. The impedance unit 150 is electrically connected between the power output terminal 142 of the low dropout regulator 140 and the interface socket 110 . More precisely, the impedance unit 150 is electrically connected to a grounding/shielding (Shield) pin 113 of the interface socket 110, such as a grounding/shielding pin of a digital video interface socket or a grounding/shielding pin of a high-resolution multimedia audio-visual interface socket. bit. In one embodiment, when the interface socket 110 is a digital video interface socket, the grounding/shielding pin 113 may be the third pin (shielding pin) of the digital video interface socket. The signal source device 180 includes a detection signal generating unit 188 that can be coupled to the ground/shield pin 113 to generate a detection signal Sdet. In other words, in the interface socket 182 of the signal source device 180 , the pin 189 for coupling to the ground/shield pin 113 is not directly coupled to the ground, but electrically connected to the detection signal generating unit 188 . The impedance value of the impedance unit 150 can be set according to the circuit structure of the detection signal generating unit 188 . For the circuit structure of the detection signal generating unit 188 shown in FIG. 1 , the impedance value of the impedance unit 150 can be set to zero. In the embodiment shown in FIG. 1 , the coupling unit 161 includes a capacitor 171 , the coupling unit 162 includes a capacitor 172 , the coupling unit 163 includes a capacitor 173 , the coupling unit 164 includes a capacitor 174 , and the impedance unit 150 includes a resistor 175 .

在接口插座110为数字视讯接口(DVI)插座的实施例中，信号来源装置180用以输出具有数字视讯接口传输规格的信号或具有数字影音显示接口传输规格的信号，而信号来源装置180的输出接口181所包含的接口插座182为数字视讯接口插座。或者，在接口插座110为高分辨率多媒体影音接口(HDMI)插座的实施例中，信号来源装置180则用以输出具有高分辨率多媒体影音接口传输规格的信号或具有数字影音显示接口传输规格的信号，而信号来源装置180的输出接口181所包含的接口插座182为高分辨率多媒体影音接口插座。另外，由于信号接收装置190用以接收具有数字影音显示接口传输规格的信号，所以其数字影音显示输入接口191包含数字影音显示接口插座192。转接器100的电路相关功能操作概述如下。In the embodiment where the interface socket 110 is a digital video interface (DVI) socket, the signal source device 180 is used to output a signal with a digital video interface transmission standard or a signal with a digital audio-visual display interface transmission standard, and the output of the signal source device 180 The interface socket 182 included in the interface 181 is a digital video interface socket. Or, in the embodiment where the interface socket 110 is a high-resolution multimedia audio-visual interface (HDMI) socket, the signal source device 180 is used to output a signal with a high-resolution multimedia audio-visual interface transmission standard or a digital audio-visual display interface transmission standard. signal, and the interface socket 182 included in the output interface 181 of the signal source device 180 is a high-resolution multimedia audio-visual interface socket. In addition, since the signal receiving device 190 is used to receive signals having the transmission standard of a digital video display interface, its digital video display input interface 191 includes a digital video video display interface socket 192 . The circuit-related functional operation of the adapter 100 is summarized as follows.

当信号接收装置190通过转接器100而连接至信号来源装置180时，低压降稳压器140可将信号来源装置180所提供的5V电压源转换为3.3V电压源馈入至信号接收装置190的数字影音显示输入接口191，使信号接收装置190可据以传送具3.3V的热插拔检测信号HPD至信号来源装置180，信号来源装置180因而检测到已连接的信号接收装置190。同时，3.3V电压源亦可通过阻抗单元150与接地/遮蔽脚位113而馈入至检测信号产生单元188，用以产生具3.3V的检测信号Sdet。其后，信号来源装置180可根据检测信号Sdet以提供具有数字影音显示接口传输规格的数字影音显示信号S_DP与辅助差动信号S_AUX，其中数字影音显示信号S_DP通过输出接口181的传送器(Transmitter)183与转接器100的中继器130，而馈入至信号接收装置190的数字影音显示输入接口191的接收器(Receiver)193，辅助差动信号S_AUX由辅助传输线165与166所提供的辅助通道168，经耦合单元163与164而传送至信号接收装置190。亦即，可根据转接器100的功能运作，而实现将具数字影音显示接口传输规格的信号通过数字视讯接口或高分辨率多媒体影音接口而传送。When the signal receiving device 190 is connected to the signal source device 180 through the adapter 100, the low dropout voltage regulator 140 can convert the 5V voltage source provided by the signal source device 180 into a 3.3V voltage source and feed it to the signal receiving device 190 The digital audio-visual display input interface 191 enables the signal receiving device 190 to transmit a 3.3V hot plug detection signal HPD to the signal source device 180, and the signal source device 180 thus detects the connected signal receiving device 190. At the same time, the 3.3V voltage source can also be fed into the detection signal generation unit 188 through the impedance unit 150 and the ground/shield pin 113 to generate a 3.3V detection signal Sdet. Thereafter, the signal source device 180 can provide the digital audio-visual display signal S _DP and the auxiliary differential signal S _AUX with the digital audio-visual display interface transmission standard according to the detection signal Sdet, wherein the digital audio-visual display signal S _DP passes through the transmitter of the output interface 181 (Transmitter) 183 and the repeater 130 of the adapter 100, and feed into the receiver (Receiver) 193 of the digital audio-visual display input interface 191 of the signal receiving device 190, and the auxiliary differential signal S _AUX is transmitted by the auxiliary transmission lines 165 and 166 The provided auxiliary channel 168 is transmitted to the signal receiving device 190 through the coupling units 163 and 164 . That is to say, according to the function operation of the adapter 100 , the signal having the transmission standard of the digital audio-visual display interface can be transmitted through the digital video interface or the high-resolution multimedia audio-visual interface.

在另一种电路功能操作中，当信号接收装置190通过转接器100而连接至信号来源装置180后，信号来源装置180可先通过辅助通道传送I2C(Inter-IntegratedCircuit)信号S_I2C至信号接收装置190，但信号接收装置190回传辅助差动信号S_AUX至信号来源装置180。当信号来源装置180检测到信号接收装置190回传的辅助差动信号S_AUX时，就据以提供具有数字影音显示接口传输规格的数字影音显示信号S_DP与辅助差动信号S_AUX，通过转接器100传输至信号接收装置190，如此亦可实现将具数字影音显示接口传输规格的信号通过数字视讯接口或高分辨率多媒体影音接口而传送。在此种电路功能操作中，信号来源装置180并非根据检测信号Sdet以实现将具有数字影音显示接口传输规格的信号通过数字视讯接口或高分辨率多媒体影音接口而传送，所以信号来源装置180可省略检测信号产生单元188，而脚位189则可直接耦合到接地端。In another circuit function operation, when the signal receiving device 190 is connected to the signal source device 180 through the adapter 100, the signal source device 180 can first transmit the I2C (Inter-Integrated Circuit) signal S _I2C to the signal receiving device through the auxiliary channel. device 190 , but the signal receiving device 190 returns the auxiliary differential signal S _AUX to the signal source device 180 . When the signal source device 180 detects the auxiliary differential signal S _AUX sent back by the signal receiving device 190, it provides the digital audio-visual display signal S _DP and the auxiliary differential signal S _AUX according to the digital audio-visual display interface transmission specification, through the transfer The connector 100 is used to transmit the signal to the signal receiving device 190, so that the signal having the transmission specification of the digital audio-visual display interface can be transmitted through the digital video interface or the high-resolution multimedia audio-visual interface. In this kind of circuit function operation, the signal source device 180 is not based on the detection signal Sdet to transmit the signal with the digital audio-visual display interface transmission specification through the digital video interface or the high-resolution multimedia audio-visual interface, so the signal source device 180 can be omitted The detection signal generation unit 188, and the pin 189 can be directly coupled to the ground terminal.

请参考图2，图2为本发明第二实施例的转接器200的电路示意图。如图2所示，转接器200包含接口插座210、数字影音显示接口插头220、多个耦合单元231～233、导线235、低压降稳压器240与阻抗单元250。转接器200用来耦接信号来源装置180与信号接收装置190，使信号来源装置180可根据转接器200的功能运作，而输出信号接收装置190所需的数字影音显示信号S_DP。接口插座210为数字视讯接口插座或高分辨率多媒体影音接口插座。Please refer to FIG. 2 , which is a schematic circuit diagram of an adapter 200 according to a second embodiment of the present invention. As shown in FIG. 2 , the adapter 200 includes an interface socket 210 , a digital audio-visual display interface plug 220 , a plurality of coupling units 231 - 233 , a wire 235 , a low dropout regulator 240 and an impedance unit 250 . The adapter 200 is used to couple the signal source device 180 and the signal receiving device 190 , so that the signal source device 180 can operate according to the function of the adapter 200 and output the digital audio-visual display signal S _DP required by the signal receiving device 190 . The interface socket 210 is a digital video interface socket or a high-resolution multimedia video interface socket.

耦合单元231电连接于接口插座210与数字影音显示接口插头220之间，用以将从接口插座210输入的数字影音显示信号S_DP传输至数字影音显示接口插头220。请注意，转接器200的电路结构用以传输具较佳信号品质的数字影音显示信号S_DP，因此不使用中继器执行信号增强运作以降低成本。耦合单元232通过辅助传输线265而电连接于接口插座210与数字影音显示接口插头220之间，耦合单元233通过辅助传输线266而电连接于接口插座210与数字影音显示接口插头220之间，其中辅助传输线265与266所提供的辅助通道268用来传输辅助差动信号S_AUX以执行信号传输同步运作。导线235电连接于接口插座210与数字影音显示接口插头220之间，用以传输热插拔检测信号HPD。The coupling unit 231 is electrically connected between the interface socket 210 and the digital audio-visual display interface plug 220 for transmitting the digital audio-visual display signal S _DP input from the interface socket 210 to the digital audio-visual display interface plug 220 . Please note that the circuit structure of the adapter 200 is used to transmit the digital audio-visual display signal S _DP with better signal quality, so no repeater is used to perform the signal enhancement operation to reduce the cost. The coupling unit 232 is electrically connected between the interface socket 210 and the digital audio-visual display interface plug 220 through the auxiliary transmission line 265, and the coupling unit 233 is electrically connected between the interface socket 210 and the digital audio-visual display interface plug 220 through the auxiliary transmission line 266, wherein the auxiliary The auxiliary channel 268 provided by the transmission lines 265 and 266 is used to transmit the auxiliary differential signal S _AUX to perform signal transmission synchronous operation. The wire 235 is electrically connected between the interface socket 210 and the digital audio-visual display interface plug 220 for transmitting the hot plug detection signal HPD.

低压降稳压器240包含电源输入端241与电源输出端242，其中电源输入端241电连接于接口插座210，电源输出端242电连接于数字影音显示接口插头220，用以提供信号接收装置190的数字影音显示输入接口191所需的电源DP PWR。低压降稳压器240可为5V至3.3V稳压器，用来将信号来源装置180所提供的5V电压源稳压为3.3V电压源。阻抗单元250电连接于低压降稳压器240的电源输出端242与接口插座210之间。更精确地说，阻抗单元250电连接于接口插座210的一接地/遮蔽脚位213，譬如数字视讯接口插座的接地/遮蔽脚位或高分辨率多媒体影音接口插座的接地/遮蔽脚位。在一实施例中，当接口插座210为数字视讯接口插座时，接地/遮蔽脚位213可为数字视讯接口插座的第三脚位(遮蔽脚位)。阻抗单元250的阻抗值可根据检测信号产生单元188的电路架构而设定，以图2所示的检测信号产生单元188的电路架构而言，阻抗单元250的阻抗值可设为零。在图2所示的实施例中，耦合单元231包含电容271，耦合单元232包含电容272，耦合单元233包含电容273，阻抗单元250包含电阻275。The low-dropout regulator 240 includes a power input terminal 241 and a power output terminal 242, wherein the power input terminal 241 is electrically connected to the interface socket 210, and the power output terminal 242 is electrically connected to the digital audio-visual display interface plug 220 to provide the signal receiving device 190 The digital audio-visual display input interface 191 requires power DP PWR. The low dropout voltage regulator 240 can be a 5V to 3.3V voltage regulator, and is used to stabilize the 5V voltage source provided by the signal source device 180 into a 3.3V voltage source. The impedance unit 250 is electrically connected between the power output terminal 242 of the low dropout regulator 240 and the interface socket 210 . More precisely, the impedance unit 250 is electrically connected to a ground/shield pin 213 of the interface socket 210 , such as a ground/shield pin of a digital video interface socket or a ground/shield pin of a high-resolution multimedia audio-visual interface socket. In one embodiment, when the interface socket 210 is a digital video interface socket, the grounding/shielding pin 213 may be the third pin (shielding pin) of the digital video interface socket. The impedance value of the impedance unit 250 can be set according to the circuit structure of the detection signal generating unit 188 . For the circuit structure of the detection signal generating unit 188 shown in FIG. 2 , the impedance value of the impedance unit 250 can be set to zero. In the embodiment shown in FIG. 2 , the coupling unit 231 includes a capacitor 271 , the coupling unit 232 includes a capacitor 272 , the coupling unit 233 includes a capacitor 273 , and the impedance unit 250 includes a resistor 275 .

同理，在接口插座210为数字视讯接口(DVI)插座的实施例中，信号来源装置180用以输出具数字视讯接口传输规格的信号或具数字影音显示接口传输规格的信号，而信号来源装置180的输出接口181所包含的接口插座182为数字视讯接口插座。或者，在接口插座210为高分辨率多媒体影音接口(HDMI)插座的实施例中，信号来源装置180则用以输出具有高分辨率多媒体影音接口传输规格的信号或具有数字影音显示接口传输规格的信号，而信号来源装置180的输出接口181所包含的接口插座182为高分辨率多媒体影音接口插座。另外，由于信号接收装置190用以接收具有数字影音显示接口传输规格的信号，所以其数字影音显示输入接口191包含数字影音显示接口插座192。转接器200的电路相关功能操作概述如下。Similarly, in the embodiment where the interface socket 210 is a digital video interface (DVI) socket, the signal source device 180 is used to output a signal with a digital video interface transmission standard or a signal with a digital audio-visual display interface transmission standard, and the signal source device The interface socket 182 included in the output interface 181 of 180 is a digital video interface socket. Alternatively, in an embodiment where the interface socket 210 is a high-resolution multimedia audio-visual interface (HDMI) socket, the signal source device 180 is used to output a signal with a high-resolution multimedia audio-visual interface transmission standard or a digital audio-visual display interface transmission standard. signal, and the interface socket 182 included in the output interface 181 of the signal source device 180 is a high-resolution multimedia audio-visual interface socket. In addition, since the signal receiving device 190 is used to receive signals having the transmission standard of a digital video display interface, its digital video display input interface 191 includes a digital video video display interface socket 192 . The circuit-related functional operations of the adapter 200 are summarized as follows.

当信号接收装置190通过转接器200而连接至信号来源装置180时，低压降稳压器240可将信号来源装置180所提供的5V电压源转换为3.3V电压源馈入至信号接收装置190的数字影音显示输入接口191，使信号接收装置190可据以传送具有3.3V的热插拔检测信号HPD至信号来源装置180，信号来源装置180因而检测到已连接的信号接收装置190。同时，3.3V电压源亦可通过阻抗单元250与接地/遮蔽脚位213而馈入至检测信号产生单元188，用以产生具有3.3V的检测信号Sdet。其后，信号来源装置180可根据检测信号Sdet以提供具数字影音显示接口传输规格的数字影音显示信号S_DP与辅助差动信号S_AUX，其中数字影音显示信号S_DP通过输出接口181的传送器183与转接器200的耦合单元231，而馈入至信号接收装置190的数字影音显示输入接口191的接收器193，辅助差动信号S_AUX由辅助传输线265与266所提供的辅助通道268，经耦合单元232与233而传送至信号接收装置190。亦即，可根据转接器200的功能运作，而实现将具有数字影音显示接口传输规格的信号通过数字视讯接口或高分辨率多媒体影音接口而传送。When the signal receiving device 190 is connected to the signal source device 180 through the adapter 200, the low dropout voltage regulator 240 can convert the 5V voltage source provided by the signal source device 180 into a 3.3V voltage source and feed it to the signal receiving device 190 The digital audio-visual display input interface 191 enables the signal receiving device 190 to transmit a hot plug detection signal HPD with 3.3V to the signal source device 180 , and the signal source device 180 thus detects the connected signal receiving device 190 . At the same time, the 3.3V voltage source can also be fed into the detection signal generation unit 188 through the impedance unit 250 and the ground/shield pin 213 to generate the detection signal Sdet with 3.3V. Thereafter, the signal source device 180 can provide the digital audio-visual display signal S _DP and the auxiliary differential signal S _AUX according to the detection signal Sdet, wherein the digital audio-visual display signal S _DP passes through the transmitter of the output interface 181 183 and the coupling unit 231 of the adapter 200, and fed to the receiver 193 of the digital audio-visual display input interface 191 of the signal receiving device 190, the auxiliary differential signal S _AUX is provided by the auxiliary transmission line 265 and 266 through the auxiliary channel 268, The signals are transmitted to the signal receiving device 190 through the coupling units 232 and 233 . That is to say, according to the function operation of the adapter 200 , the signal having the transmission specification of the digital audio-visual display interface can be transmitted through the digital video interface or the high-resolution multimedia audio-visual interface.

在另一种电路功能操作中，当信号接收装置190通过转接器200而连接至信号来源装置180后，信号来源装置180可先通过辅助通道传送I2C信号S_I2C至信号接收装置190，但信号接收装置190回传辅助差动信号S_AUX至信号来源装置180。当信号来源装置180检测到信号接收装置190回传的辅助差动信号S_AUX时，就据以提供具数字影音显示接口传输规格的数字影音显示信号S_DP与辅助差动信号S_AUX，通过转接器200传输至信号接收装置190，如此亦可实现将具有数字影音显示接口传输规格的信号通过数字视讯接口或高分辨率多媒体影音接口而传送。同理，在基于此种电路功能操作的架构中，信号来源装置180可省略检测信号产生单元188，而脚位189则可直接耦合到接地端。In another circuit function operation, when the signal receiving device 190 is connected to the signal source device 180 through the adapter 200, the signal source device 180 can first transmit the I2C signal S _I2C to the signal receiving device 190 through the auxiliary channel, but the signal The receiving device 190 returns the auxiliary differential signal S _AUX to the signal source device 180 . When the signal source device 180 detects the auxiliary differential signal S _AUX sent back by the signal receiving device 190, it provides the digital audio-visual display signal S _DP and the auxiliary differential signal S _AUX according to the digital audio-visual display interface transmission specification, through the transfer The interface 200 is used to transmit the signal to the signal receiving device 190. In this way, the signal having the transmission specification of the digital audio-visual display interface can also be transmitted through the digital video interface or the high-resolution multimedia audio-visual interface. Similarly, in the architecture based on this circuit function operation, the signal source device 180 can omit the detection signal generating unit 188 , and the pin 189 can be directly coupled to the ground terminal.

综上所述，本发明转接器可用以实现将具有数字影音显示接口传输规格的信号，通过信号来源装置的数字视讯接口或高分辨率多媒体影音接口而传送至信号接收装置，可提高数字视讯接口或高分辨率多媒体影音接口的应用弹性。此外，本发明转接器并不需要使用任何信号模式转换电路，亦即可显著简化其电路架构复杂度以降低成本。To sum up, the adapter of the present invention can be used to transmit the signal having the transmission specification of the digital audio-visual display interface to the signal receiving device through the digital video interface or the high-resolution multimedia audio-visual interface of the signal source device, which can improve the digital video display interface. Application flexibility of interface or high-resolution multimedia audio-visual interface. In addition, the adapter of the present invention does not need to use any signal mode conversion circuit, which can significantly simplify the complexity of its circuit structure and reduce the cost.

以上所述仅为本发明的较佳实施例，凡依本发明权利要求书所做的均等变化与修饰，皆应属本发明的涵盖范围。The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the present invention.

Claims

1. breakout box is characterized in that it comprises:

Interface socket;

Digital audio-video display interface plug;

Repeater is electrically connected between described interface socket and the described digital audio-video display interface plug, strengthens running in order to carry out signal;

Low dropout voltage regulator comprises power input and power output end, and wherein said power input is electrically connected on described interface socket, and described power output end is electrically connected on described digital audio-video display interface plug; And

Impedance unit is electrically connected between the power output end and described interface socket of described low dropout voltage regulator.

2. breakout box according to claim 1 is characterized in that, wherein said interface socket is digital video interface socket or high resolution multimedia audio/video interface socket.

3. breakout box according to claim 1 is characterized in that, wherein said impedance unit is electrically connected on the grounding leg position of described interface socket or covers the pin position.

4. breakout box according to claim 1 is characterized in that wherein said impedance unit comprises resistance.

5. breakout box according to claim 1 is characterized in that, also comprises:

First coupling unit is electrically connected between described interface socket and the described repeater, in order to will be from the data signal transmission of described interface socket input to described repeater; And

Second coupling unit is electrically connected between described repeater and the described digital audio-video display interface plug, in order to will be from the data signal transmission of described repeater output to described digital audio-video display interface plug.

6. breakout box according to claim 5 is characterized in that, wherein said first coupling unit comprises first electric capacity, and described second coupling unit comprises second electric capacity.

7. breakout box according to claim 1 is characterized in that, also comprises:

First coupling unit is electrically connected between described interface socket and the described digital audio-video display interface plug; And

Second coupling unit is electrically connected between described interface socket and the described digital audio-video display interface plug;

Wherein said first coupling unit and described second coupling unit transfer to described digital audio-video display interface plug in order to auxiliary differential wave or the I2C signal with the input of described interface socket, or in order to the auxiliary differential signal transmission of described digital audio-video display interface plug input to described interface socket.

8. breakout box according to claim 7 is characterized in that, wherein said first coupling unit comprises first electric capacity, and described second coupling unit comprises second electric capacity.

9. breakout box according to claim 1 is characterized in that, also comprises:

Lead is electrically connected between described interface socket and the described digital audio-video display interface plug, in order to transmission hot plug detection signal.

10. breakout box according to claim 1 is characterized in that, wherein said low dropout voltage regulator is 5V to a 3.3V voltage stabilizer.

11. breakout box according to claim 1 is characterized in that, the power end of wherein said repeater is electrically connected to the power output end of described low dropout voltage regulator.