CN101944347B - Adaptor - Google Patents

Adaptor Download PDF

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Publication number
CN101944347B
CN101944347B CN 200910159835 CN200910159835A CN101944347B CN 101944347 B CN101944347 B CN 101944347B CN 200910159835 CN200910159835 CN 200910159835 CN 200910159835 A CN200910159835 A CN 200910159835A CN 101944347 B CN101944347 B CN 101944347B
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China
Prior art keywords
interface
digital audio
electrically connected
signal
interface socket
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CN 200910159835
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CN101944347A (en
Inventor
黄新武
黄国勋
陈建荣
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Asustek Computer Inc
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Asustek Computer Inc
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Abstract

The invention discloses an adapter, which comprises an interface socket, a digital audio-visual display interface plug, a repeater, a low voltage-reduction voltage stabilizer and an impedance unit. The interface socket is a digital video interface socket or a high resolution multimedia audio-visual 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-reduction voltage 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-reduction voltage stabilizer and the interface socket. A signal source device can be operated according to functions of the adaptor so as to output digital audio-visual display signals required by a signal receiving device.

Description

Breakout box
Technical field
The present invention relates to a kind of breakout box, espespecially a kind of breakout box that the signal with digital audio-video display interface transmission standard can be transmitted by digital video interface or high resolution multimedia audio/video interface.
Background technology
Generally speaking, at present the signal transmission standard of the transmission interface in digital image-sound playing device is take high-speed figure video-audio signal transmission standard as main flow, for example high-quality multimedia audio/video interface (high-definition multimediainterface; HDMI) transmission standard, digital video interface (Digital Visual Interface; DVI) transmission standard and digital audio-video show (DisplayPort; DP) the signal transmission standard such as interface transmission standard.If will be when same signal original device is supported above-mentioned multiple interfaces transmission standard, known technology can dispose corresponding interface runners for each transmission interface usually, thereby causes the shortcoming of the raising of interface runners number and interface area change.For solving above-mentioned shortcoming, just provide various signal converters to reduce the required interface runners number of signal original device, such as DP to DVI converter, DP to HDMI converter and DVI to HDMI converter etc., but above-mentioned various converter is mainly processed with executive's interface according to the signal mode transition operation, so circuit framework very complex.
In addition, because the signal transmission form of DP interface adopts the ANSI8B10B of industrywide standard, mode with the similar network grouping is transmitted, and differs from employed the minimizing of DVI and HDMI interface and shifts differential wave (Transition Minimized Differential Signaling; TMDS) transmission mode makes the DP interface can reach with circuit still less high transmission frequency width (such as 10Gbps), so the display panel of tool DP interface is also just gradually popular.Yet, do not have at present DVI to DP breakout box and HDMI to DP breakout box, so can't be not under the signal mode transition operation, the signal of tool digital audio-video display interface transmission standard is transmitted by digital video interface or high resolution multimedia audio/video interface.
Summary of the invention
Therefore, fundamental purpose of the present invention namely is to provide breakout box to transmit by digital video interface or high resolution multimedia audio/video interface with the signal of realization with tool digital audio-video display interface transmission standard.
The present invention discloses a kind of breakout box, transmits by digital video interface or high resolution multimedia audio/video interface in order to the signal that will have digital audio-video display interface transmission standard.This breakout box includes an interface socket; One digital audio-video display interface plug; One repeater is electrically connected between this interface socket and this digital audio-video display interface plug, strengthens running in order to executive signal; One low dropout voltage regulator comprises a power input and a power output end, and wherein this power input is electrically connected on this interface socket, and this power output end is electrically connected on this digital audio-video display interface plug; And an impedance unit, be electrically connected between the power output end and this interface socket of this low dropout voltage regulator.
The present invention discloses a kind of breakout box in addition, transmits by digital video interface or high resolution multimedia audio/video interface in order to the signal that will have digital audio-video display interface transmission standard.This breakout box includes an interface socket; One digital audio-video display interface plug; One first coupling unit is electrically connected between this interface socket and this digital audio-video display interface plug, in order to transferring to this digital audio-video display interface plug from the data-signal of this interface socket input; One low dropout voltage regulator comprises a power input and a power output end, and wherein this power input is electrically connected on this interface socket, and this power output end is electrically connected on this digital audio-video display interface plug; And an impedance unit, be electrically connected between the power output end and this interface socket of this low dropout voltage regulator.
Description of drawings
Fig. 1 is the circuit diagram of the breakout box of first embodiment of the invention.
Fig. 2 is the circuit diagram of the breakout box of second embodiment of the invention.
Embodiment
Please refer to Fig. 1, Fig. 1 is the circuit diagram of the breakout box 100 of first embodiment of the invention.As shown in Figure 1, breakout box 100 comprises interface socket 110, digital audio-video display interface plug 120, repeater (Repeater) 130, wire 135, low dropout voltage regulator (Low-Dropout Regulator) 140, impedance unit 150 and a plurality of coupling units 161~164.Breakout box 100 is used for coupling signal original device 180 and signal receiving device 190, makes the signal original device 180 can be according to the functional operation of breakout box 100, and the required digital audio-video display S of output signal receiving trap 190 DPSignal original device 180 can be host computer or multi-functional digital disc (Digital Versatile Disc; DVD) player, signal receiving device 190 can be liquid crystal indicator.Interface socket 110 is digital video interface socket or high resolution multimedia audio/video interface socket.
Coupling unit 161 is electrically connected between interface socket 110 and the repeater 130, in order to will be from the digital audio-video display S of interface socket 110 input DPTransfer to repeater 130.Coupling unit 162 is electrically connected between repeater 130 and the digital audio-video display interface plug 120, in order to will be from the digital audio-video display S of repeater 130 output DPTransfer to digital audio-video display interface plug 120.Repeater 130 is electrically connected between coupling unit 161 and the coupling unit 162, is used for executive signal to strengthen the digital audio-video display S that running is transmitted to avoid decaying DP Coupling unit 163 is electrically connected between interface socket 110 and the digital audio-video display interface plug 120 by auxiliary transmission line 165, coupling unit 164 is electrically connected between interface socket 110 and the digital audio-video display interface plug 120 by auxiliary transmission line 166, and wherein the accessory channel (Auxiliary Channel) 168 that provides of auxiliary transmission line 165 and 166 is used for transmitting auxiliary differential wave S AUXOperate with the executive signal transmitting synchronous.Wire 135 is electrically connected between interface socket 110 and the digital audio-video display interface plug 120, detects (Hot-Plug Detect) signal HPD in order to transmit hot plug.
Low dropout voltage regulator 140 comprises power input 141 and power output end 142, wherein power input 141 is electrically connected on interface socket 110, power output end 142 is electrically connected on digital audio-video display interface plug 120, shows the power supply DP_PWR that input interface 191 is required in order to the digital audio-video that signal receiving device 190 is provided.Low dropout voltage regulator 140 can supply power in addition repeater 130 and strengthen running with executive signal, that is the power output end 142 of low dropout voltage regulator 140 can be electrically connected on the power end (not shown) of repeater 130 in addition.Low dropout voltage regulator 140 can be 5V to 3.3V voltage stabilizer, and the 5V voltage source voltage stabilizing that is used for signal original device 180 is provided is the 3.3V voltage source.Impedance unit 150 is electrically connected between the power output end 142 and interface socket 110 of low dropout voltage regulator 140.Or rather, impedance unit 150 is electrically connected on a ground connection of interface socket 110/cover (Shield) pin position 113, the ground connection of such as the ground connection of digital video interface socket/cover pin position or high resolution multimedia audio/video interface socket/cover pin position.In one embodiment, when interface socket 110 is the digital video interface socket, ground connection/the cover tripod position (covering the pin position) that pin position 113 can be the digital video interface socket.Signal original device 180 inclusion test signal generation units 188 can be used to be coupled to ground connection/cover pin position 113, and produce according to this detection signal Sdet.In other words, in the interface socket 182 of signal original device 180, be not to be directly coupled to earth terminal in order to the pin position 189 that is coupled to ground connection/cover pin position 113, and be electrically connected on detection signal generation unit 188.The resistance value of impedance unit 150 can be set according to the circuit framework of detection signal generation unit 188, and with the circuit framework of detection signal generation unit 188 shown in Figure 1, the resistance value of impedance unit 150 can be made as zero.In the embodiment shown in fig. 1, coupling unit 161 comprises electric capacity 171, and coupling unit 162 comprises electric capacity 172, and coupling unit 163 comprises electric capacity 173, and coupling unit 164 comprises electric capacity 174, and impedance unit 150 comprises resistance 175.
Be among the embodiment of digital video interface (DVI) socket at interface socket 110, signal original device 180 has the signal of digital video interface transmission standard in order to output or has the signal of digital audio-video display interface transmission standard, and the interface socket 182 that the output interface 181 of signal original device 180 comprises is the digital video interface socket.Perhaps, be among the embodiment of high resolution multimedia audio/video interface (HDMI) socket at interface socket 110,180 of signal original devices have the signal of high resolution multimedia audio/video interface transmission standard in order to output or have the signal of digital audio-video display interface transmission standard, and the interface socket 182 that the output interface 181 of signal original device 180 comprises is high resolution multimedia audio/video interface socket.In addition, because signal receiving device 190 has the signal of digital audio-video display interface transmission standard in order to reception, so its digital audio-video shows that input interface 191 comprises digital audio-video display interface socket 192.The circuit correlation function operational overview of breakout box 100 is as follows.
When signal receiving device 190 is connected to signal original device 180 by breakout box 100, the 5V voltage source that low dropout voltage regulator 140 can provide signal original device 180 is converted to the digital audio-video demonstration input interface 191 that the 3.3V voltage source is fed into signal receiving device 190, make hot plug detection signal HPD that signal receiving device 190 can transmit tool 3.3V according to this to signal original device 180, signal original device 180 thereby detect the signal receiving device 190 that has connected.Simultaneously, the 3.3V voltage source also can be by impedance unit 150 and ground connection/cover pin position 113 to be fed into detection signal generation unit 188, in order to produce the detection signal Sdet of tool 3.3V.Thereafter, signal original device 180 can be according to detection signal Sdet to provide the S of the digital audio-video display with digital audio-video display interface transmission standard DPWith auxiliary differential wave S AUX, digital audio-video display S wherein DPForwarder (Transmitter) 183 by output interface 181 and the repeater 130 of breakout box 100, and the digital audio-video that is fed into signal receiving device 190 shows the receiver (Receiver) 193 of input interface 191, auxiliary differential wave S AUXThe accessory channel 168 that is provided by auxiliary transmission line 165 and 166 is through coupling unit 163 and 164 and be sent to signal receiving device 190.That is, can be according to the functional operation of breakout box 100, and realize the signal of tool digital audio-video display interface transmission standard is transmitted by digital video interface or high resolution multimedia audio/video interface.
In another kind of circuit function operation, after signal receiving device 190 was connected to signal original device 180 by breakout box 100, signal original device 180 can transmit I2C (Inter-IntegratedCircuit) signal S by accessory channel first I2CTo signal receiving device 190, but the auxiliary differential wave S of signal receiving device 190 passbacks AUXTo signal original device 180.Detect the auxiliary differential wave S of signal receiving device 190 passbacks when signal original device 180 AUXThe time, the digital audio-video display S with digital audio-video display interface transmission standard just is provided according to this DPWith auxiliary differential wave S AUX, transferring to signal receiving device 190 by breakout box 100, so also can realize the signal of tool digital audio-video display interface transmission standard is transmitted by digital video interface or high resolution multimedia audio/video interface.In the operation of this kind circuit function, signal original device 180 is not to transmit by digital video interface or high resolution multimedia audio/video interface to realize the signal that will have digital audio-video display interface transmission standard according to detection signal Sdet, so signal original device 180 can omit detection signal generation unit 188, pin position 189 then can be directly coupled to earth terminal.
Please refer to Fig. 2, Fig. 2 is the circuit diagram of the breakout box 200 of second embodiment of the invention.As shown in Figure 2, breakout box 200 comprises interface socket 210, digital audio-video display interface plug 220, a plurality of coupling unit 231~233, wire 235, low dropout voltage regulator 240 and impedance unit 250.Breakout box 200 is used for coupling signal original device 180 and signal receiving device 190, makes the signal original device 180 can be according to the functional operation of breakout box 200, and the required digital audio-video display S of output signal receiving trap 190 DP Interface socket 210 is digital video interface socket or high resolution multimedia audio/video interface socket.
Coupling unit 231 is electrically connected between interface socket 210 and the digital audio-video display interface plug 220, in order to will be from the digital audio-video display S of interface socket 210 input DPTransfer to digital audio-video display interface plug 220.Note that the circuit structure of breakout box 200 is in order to transmit the digital audio-video display S of tool better signal quality DP, therefore do not use the repeater executive signal to strengthen running to reduce cost.Coupling unit 232 is electrically connected between interface socket 210 and the digital audio-video display interface plug 220 by auxiliary transmission line 265, coupling unit 233 is electrically connected between interface socket 210 and the digital audio-video display interface plug 220 by auxiliary transmission line 266, and wherein the accessory channel 268 that provides of auxiliary transmission line 265 and 266 is used for transmitting auxiliary differential wave S AUXOperate with the executive signal transmitting synchronous.Wire 235 is electrically connected between interface socket 210 and the digital audio-video display interface plug 220, in order to transmit hot plug detection signal HPD.
Low dropout voltage regulator 240 comprises power input 241 and power output end 242, wherein power input 241 is electrically connected on interface socket 210, power output end 242 is electrically connected on digital audio-video display interface plug 220, shows the power supply DP_PWR that input interface 191 is required in order to the digital audio-video that signal receiving device 190 is provided.Low dropout voltage regulator 240 can be 5V to 3.3V voltage stabilizer, and the 5V voltage source voltage stabilizing that is used for signal original device 180 is provided is the 3.3V voltage source.Impedance unit 250 is electrically connected between the power output end 242 and interface socket 210 of low dropout voltage regulator 240.Or rather, impedance unit 250 is electrically connected on a ground connection of interface socket 210/cover pin position 213, the ground connection of such as the ground connection of digital video interface socket/cover pin position or high resolution multimedia audio/video interface socket/cover pin position.In one embodiment, when interface socket 210 is the digital video interface socket, ground connection/the cover tripod position (covering the pin position) that pin position 213 can be the digital video interface socket.The resistance value of impedance unit 250 can be set according to the circuit framework of detection signal generation unit 188, and with the circuit framework of detection signal generation unit 188 shown in Figure 2, the resistance value of impedance unit 250 can be made as zero.In the embodiment shown in Figure 2, coupling unit 231 comprises electric capacity 271, and coupling unit 232 comprises electric capacity 272, and coupling unit 233 comprises electric capacity 273, and impedance unit 250 comprises resistance 275.
In like manner, be among the embodiment of digital video interface (DVI) socket at interface socket 210, signal original device 180 is in order to the signal of output device digital video interface transmission standard or the signal of tool digital audio-video display interface transmission standard, and the interface socket 182 that the output interface 181 of signal original device 180 comprises is the digital video interface socket.Perhaps, be among the embodiment of high resolution multimedia audio/video interface (HDMI) socket at interface socket 210,180 of signal original devices have the signal of high resolution multimedia audio/video interface transmission standard in order to output or have the signal of digital audio-video display interface transmission standard, and the interface socket 182 that the output interface 181 of signal original device 180 comprises is high resolution multimedia audio/video interface socket.In addition, because signal receiving device 190 has the signal of digital audio-video display interface transmission standard in order to reception, so its digital audio-video shows that input interface 191 comprises digital audio-video display interface socket 192.The circuit correlation function operational overview of breakout box 200 is as follows.
When signal receiving device 190 is connected to signal original device 180 by breakout box 200, the 5V voltage source that low dropout voltage regulator 240 can provide signal original device 180 is converted to the digital audio-video demonstration input interface 191 that the 3.3V voltage source is fed into signal receiving device 190, the hot plug detection signal HPD that signal receiving device 190 can be transmitted according to this have 3.3V is to signal original device 180, signal original device 180 thereby detect the signal receiving device 190 that has connected.Simultaneously, the 3.3V voltage source also can by impedance unit 250 and ground connection/cover pin position 213 to be fed into detection signal generation unit 188, have the detection signal Sdet of 3.3V in order to generation.Thereafter, signal original device 180 can be according to detection signal Sdet to provide the digital audio-video display S of tool digital audio-video display interface transmission standard DPWith auxiliary differential wave S AUX, digital audio-video display S wherein DPForwarder 183 by output interface 181 and the coupling unit 231 of breakout box 200, and the digital audio-video that is fed into signal receiving device 190 shows the receiver 193 of input interface 191, auxiliary differential wave S AUXThe accessory channel 268 that is provided by auxiliary transmission line 265 and 266 is through coupling unit 232 and 233 and be sent to signal receiving device 190.That is, can be according to the functional operation of breakout box 200, and realize that the signal that will have digital audio-video display interface transmission standard transmits by digital video interface or high resolution multimedia audio/video interface.
In another kind of circuit function operation, after signal receiving device 190 was connected to signal original device 180 by breakout box 200, signal original device 180 can transmit I2C signal S by accessory channel first I2CTo signal receiving device 190, but the auxiliary differential wave S of signal receiving device 190 passbacks AUXTo signal original device 180.Detect the auxiliary differential wave S of signal receiving device 190 passbacks when signal original device 180 AUXThe time, just provide according to this digital audio-video display S of tool digital audio-video display interface transmission standard DPWith auxiliary differential wave S AUX, transfer to signal receiving device 190 by breakout box 200, so also can realize that the signal that will have digital audio-video display interface transmission standard transmits by digital video interface or high resolution multimedia audio/video interface.In like manner, in the framework based on the operation of this kind circuit function, signal original device 180 can omit detection signal generation unit 188, and pin position 189 then can be directly coupled to earth terminal.
In sum, breakout box of the present invention can be in order to realize having the signal of digital audio-video display interface transmission standard, digital video interface or high resolution multimedia audio/video interface by the signal original device are sent to signal receiving device, can improve the application elasticity of digital video interface or high resolution multimedia audio/video interface.In addition, breakout box of the present invention does not need to use any signal mode change-over circuit, also can significantly simplify its circuit framework complexity to reduce cost.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to claims of the present invention change and modify, and all should belong to covering scope of the present invention.

Claims (10)

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 executive 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;
Wherein said interface socket is digital video interface socket or high resolution multimedia audio/video interface socket.
2. 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.
3. breakout box according to claim 1 is characterized in that, wherein said impedance unit comprises resistance.
4. breakout box according to claim 1 is characterized in that, also comprises:
The first coupling unit is electrically connected between described interface socket and the described repeater, in order to transferring to described repeater from the data-signal of described interface socket input; And
The second coupling unit is electrically connected between described repeater and the described digital audio-video display interface plug, in order to transferring to described digital audio-video display interface plug from the data-signal of described repeater output.
5. breakout box according to claim 4 is characterized in that, wherein said the first coupling unit comprises the first electric capacity, and described the second coupling unit comprises the second electric capacity.
6. breakout box according to claim 1 is characterized in that, also comprises:
The first coupling unit is electrically connected between described interface socket and the described digital audio-video display interface plug; And
The second coupling unit is electrically connected between described interface socket and the described digital audio-video display interface plug;
Wherein said the first coupling unit and described the 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.
7. breakout box according to claim 6 is characterized in that, wherein said the first coupling unit comprises the first electric capacity, and described the second coupling unit comprises the second electric capacity.
8. breakout box according to claim 1 is characterized in that, also comprises:
Wire is electrically connected between described interface socket and the described digital audio-video display interface plug, in order to transmit the hot plug detection signal.
9. breakout box according to claim 1 is characterized in that, wherein said low dropout voltage regulator is 5V to 3.3V voltage stabilizer.
10. 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.
CN 200910159835 2009-07-07 2009-07-07 Adaptor Active CN101944347B (en)

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CN101944347B true CN101944347B (en) 2013-02-27

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102946521A (en) * 2012-10-26 2013-02-27 圆刚科技股份有限公司 Video and audio conversion system and video and audio conversion method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2821683Y (en) * 2005-01-19 2006-09-27 精模电子科技(深圳)有限公司 Analogue video data format switching device
KR100816864B1 (en) * 2006-10-12 2008-03-27 박양석 Multi-tap type power supply monitoring device for sever rack
CN201188485Y (en) * 2008-04-22 2009-01-28 连捷科技股份有限公司 Connector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2821683Y (en) * 2005-01-19 2006-09-27 精模电子科技(深圳)有限公司 Analogue video data format switching device
KR100816864B1 (en) * 2006-10-12 2008-03-27 박양석 Multi-tap type power supply monitoring device for sever rack
CN201188485Y (en) * 2008-04-22 2009-01-28 连捷科技股份有限公司 Connector

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