CN205792979U

CN205792979U - Signal extension fixture and cable

Info

Publication number: CN205792979U
Application number: CN201620443473.3U
Authority: CN
Inventors: 刘德志; 马强
Original assignee: Shenzhen Hollyland Technology Co Ltd
Current assignee: Shenzhen Hollyland Technology Co Ltd
Priority date: 2016-05-16
Filing date: 2016-05-16
Publication date: 2016-12-07
Anticipated expiration: 2026-05-16

Abstract

This application discloses a kind of signal extension fixture and cable, signal extension fixture includes transmitter unit and receives unit, and transmitter unit and reception unit are connected by cable, and cable includes emitting head, core and the reception head being sequentially connected with；Emitting head or reception head include a connector, and described adapter is with multiple terminals；The terminal of adapter is connected with the terminal of described transmitter unit or reception unit, at least two kinds of signals of telecommunication of transmission, and the one of which signal of telecommunication is high speed signal；The core at least two groups that emitting head or reception head connect；One of which core is optical fiber, and another group core is optical fiber or copper cash；Often group optical fiber connects the terminal transmitting a kind of high speed signal, and copper cash connects transmission low speed signal or the terminal of other high speed signals.The application can solve copper transmission dielectric loss and cause greatly the problem that transmission range is not enough, and convenient wiring.

Description

Signal extension fixture and cable

Technical field

The application relates to signal long-distance transmissions technology, particularly relates to signal extension fixture and cable.

Background technology

HDMI (High Definition Multimedia Interface, HDMI) is HDMI A kind of digitized video/audio transmission interfaces of Licensing, LLC organization definition, can transmit the numeral without compression simultaneously and regard Frequency and voice data stream, be the audio video transmission interface that is most widely used of current consumer electronics field.

Family's many rooms distribution Video Applications and some industrial applications (such as government and enterprises, military affairs, Internet bar) need one It is easy to the long-distance transmissions HDMI signal of wiring and the skill of the signal (the such as usb signal such as keyboard, mouse) of some peripheral equipments Art.Signal extension fixture is a kind of device signal remote transmission such as HDMI being applied to far-end.

The USB1.0 signal of peripheral equipment can be converted to USB2.0 signal transmission at present, and by HDMI signal high speed signal Transmit with the form of TDMS (Transit Minimum Differential Signaling, minimize differential signal transmission).

Except high speed signal, designer also needs to consider how to transmit various low speed signal, such as DDC (Display Data Channel, DDC) signal, CEC (Consumer Electronic Control, consumer electronics controls) letter Number, HPD (Hot Plug Detect, hot-swappable) signal, and HDCP (High-bandwidth Digital Content Protection, high definition digital content is protected) signal.Distance between the transmitting terminal and receiving terminal of signal extension fixture is longer Time, in addition it is also necessary to transmission two-way infrared control signal.At present for this type of control signal, can believe with common mode as low speed signal Number mode and TMDS signal multiplexing after transmit.

Connect up for convenience, often utilize existing CAT5e or CAT6 cable as the transmission medium of signal extension fixture.But Being that CAT5e or CAT6 cable is usually copper cash, the problem that there is anti-interference difference, for the signal of two-forty, owing to transmission is situated between Matter loss causes greatly transmission range not enough.It is thus desirable to design be easy to wiring and can transmit more than one high speed signal or The scheme of the multi-signal remote transmission that high speed signal and low speed signal are coexisted.

Utility model content

In view of this, the application provides a kind of signal extension fixture and cable.

First aspect according to the embodiment of the present application, it is provided that a kind of signal extension fixture, single including transmitter unit and reception Unit, described transmitter unit and reception unit are connected by cable, and described cable includes emitting head, core and the reception being sequentially connected with Head；

Described emitting head or reception head include a connector, and described adapter is with multiple terminals；

The terminal of described adapter is connected with the terminal of described transmitter unit or reception unit, at least two kinds of telecommunications of transmission Number, the one of which signal of telecommunication is high speed signal；

The core at least two groups that described emitting head or reception head connect；One of which core is optical fiber, and another organizes core For optical fiber or copper cash；Often group optical fiber connect transmit a kind of high speed signal terminal, described copper cash connect transmission low speed signal or its The terminal of his high speed signal.

Second aspect according to the embodiment of the present application, it is provided that a kind of cable, including the emitting head being sequentially connected with, core with connect Receive head；

Described emitting head or receive head include a connector, described connector belt have multiple terminal；

The terminal of described adapter transmits at least two signal of telecommunication, and the one of which signal of telecommunication is high speed signal；

In the application, multi-signal is when transmission, shares a union joint by local terminal and transmits multi-signal to opposite end One union joint, and unlike prior art needs the multiple union joint of multifiber by fiber-optic transfer unlike signal, the most more Add and beneficially connect up, when cable 102 is connected up through pvc pipe by needs, refer to the size of pvc pipe to design union joint Size, to meet the requirement of field wiring；Furthermore it is possible to transmission range will be required high high speed signal passes through fiber-optic transfer, Such that it is able to solve copper transmission dielectric loss to cause greatly the problem that transmission range is not enough.

Accompanying drawing explanation

Fig. 1 is a signal extension fixture part-structure schematic diagram in the embodiment of the present application；

Fig. 2 a is the network of an application scenarios；

Fig. 2 b is the part-structure schematic diagram of a cable 102 in embodiment；

Fig. 3 is the part-structure schematic diagram of a cable 102 in embodiment；

Fig. 4 a is the part-structure schematic diagram of HDMI photoelectric conversion unit in embodiment；

Fig. 4 b is the part-structure schematic diagram of USB3.0 photoelectric conversion unit in embodiment；

Fig. 4 c is the part-structure schematic diagram of the first drive circuit in embodiment；

Fig. 4 d is the part-structure schematic diagram of the second drive circuit in embodiment；

Fig. 5 is the part-structure schematic diagram of transmitter unit in embodiment；

Fig. 6 is the part-structure schematic diagram receiving unit in embodiment；

Fig. 7 is the part-structure schematic diagram of a system in embodiment.

Detailed description of the invention

Here will illustrate exemplary embodiment in detail, its example represents in the accompanying drawings.Explained below relates to During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represents same or analogous key element.Following exemplary embodiment Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they are only with the most appended The example of the apparatus and method that some aspects that described in detail in claims, the application are consistent.

It is only merely for describing the purpose of specific embodiment at term used in this application, and is not intended to be limiting the application. " a kind of ", " described " and " being somebody's turn to do " of singulative used in the application and appended claims is also intended to include majority Form, unless context clearly shows that other implications.It is also understood that term "and/or" used herein refers to and wraps Any or all containing one or more projects of listing being associated may combination.

Although should be appreciated that in the application possible employing term first, second, third, etc. to describe various information, but this A little information should not necessarily be limited by these terms.These terms are only used for same type of information is distinguished from each other out.Such as, without departing from In the case of the application scope, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as One information.Depend on linguistic context, word as used in this " if " can be construed to " ... time " or " when ... Time " or " in response to determining ".

Fig. 1 is the network of the signal long-distance transmissions that a kind of the application is suitable for.Transmitter unit 101 is by cable 102 It is connected with receiving unit 103.Multi-signal can be sent to receive unit 103 by transmitter unit 101, receives unit 103 and also may be used Multi-signal to be sent to transmitter unit 101.Transmitter unit and reception unit can be with circuit boards in physical aspect Form realizes, it is also possible to be to realize with forms such as equipment.

The type of the multi-signal that transmitter unit 101 or reception unit 103 are sent to opposite end can depend on application scenarios Needs.Such as, Fig. 2 a the application relate to by multi-media signal by cable 102 from multi-media signal source to recipient's length away from Scene from transmission.Generally, multi-media signal can be HDMI (High Definition Multimedia Interface, HDMI) signal, DVI (Digital Visual Interface, digital visual interface) Signal, DP (DisplayPort, display port) interface signal etc., source can be any possible multi-media signal source.Example As, multi-media signal source is probably DVD player, high definition DVD player, Blu-ray player, the Set Top Box of cable television, satellite The Set Top Box of TV, computer etc..The multi-media signal source interface of transmission multi-media signal can be HDMI, DVI.

The application scenarios lower network seeing Fig. 2 a includes that multi-media signal source 201, signal extension fixture 202, terminal set Standby 203, cable 102.Signal extension fixture 201 includes transmitter unit 101 and receives unit 103.

Multi-media signal source 201 exports multi-media signal (such as HDMI signal or DVI signal or DP signal etc.), passes through The transmission medium output multi-media signals such as HDMI cable are to transmitter unit 101.It should be readily apparent to one skilled in the art that multimedia is believed Number source 201 multi-media signal is sent to signal extension fixture 201 by transmission medium be not belonging to the model that the application limits Within enclosing.

Multi-media signal source 201 may be provided for connecting some usb signals (such as mouse, keyboard, the shooting of external equipment First-class usb signal), exported to transmitter unit 101 by USB interface and USB transmission line.It should be readily apparent to one skilled in the art that Multi-media signal source 201 usb signal is sent to signal extension fixture 202 by transmission medium be not belonging to the application limit Within the scope of.

In some example, the signal utilizing signal extension fixture 202 to transmit can also include such as outside two-way wideband 20- 60KHz IR signal and master reset signal, Host Status signal, DDC signal, CEC signal, HPD signal, power supply signal, believe Number etc..Some signals in these signals can be to issue signal by multi-media signal source 201 or terminal unit 203 to extend dress Put 201, it is also possible to be to issue signal extension fixture 201 by other external equipments.

Under some scenes, transmitter unit 101 or receive unit 103 by some higher for requirement of real-time signals with at a high speed The form transmission of signal, and, in some cases, the high speed signal of more than one data form can be there is, such as Fig. 2 a institute The scene described, the most likely transmits high-speed video, the most likely transmission high speed USB signal (such as USB2.0, USB3.0) etc..In some occasions, some signals the highest if there is requirement of real-time then pass with the form of low speed signal Defeated, such as CEC signal, HPD signal, switching on and shutting down signal etc..It addition, it may also be necessary to take into account cable chi during signal long-distance transmissions Very little problem.It should be noted that need according to the common knowledge of those skilled in the art, transmitter unit 101 or reception unit 103 More than one signal to be transmitted does not implies that all there is multi-signal when transmission every time is delivered simultaneously to opposite end.Need based on this Asking, applicant proposes solution below.

As example, Fig. 2 b, Fig. 3 are the structural representations of several a kind of cable 102, emitting head 301 and reception 302 points It is not positioned at the two ends of cable 102.The core 102a of this cable 102 can be at least two group multi-core fibers or least one set optical fiber With the mixing core of copper core, often organize the signal type that the quantity of core can transmit as required and determine.Optical fiber can be used to transmit Optical signal, copper core can be used to transmitting telecommunication number.

Emitting head 301 includes that adapter 303, reception 302 include that adapter 304, adapter 303 and adapter 304 are equal Multiple terminal can be included.At least two signal of telecommunication of same one end (emitting head one end or receive first end) be transferred to opposite end is altogether With the different terminals of same a connector of local terminal, at least including a kind of high speed signal in the signal of telecommunication transmitted, such as HDMI believes Number, DVI signal, DP signal, or high speed USB signal etc..

Transmitter unit 101 and reception unit 103 are transferred to the signal of telecommunication of opposite end and can add at aspects such as speed, data forms To distinguish.For example, it may be high speed signal or low speed signal can be divided into according to transfer rate；Can be divided into according to data form HDMI signal, DVI signal, usb signal etc..In the application, high speed signal can be the speed signal more than 100Mbps rank, Low speed signal can be the signal that speed is less than 1Mbps rank.

As an example, it is considered to the cost of transmission medium and signal transmission characteristics, one of which high speed signal can be passed through Fiber-optic transfer, other high speed signal or low speed signal pass through copper transmission；Can also be by high speed signal respectively by different Fiber-optic transfer, and low speed signal is passed through copper transmission.Such as in some example, include one group with reference to Fig. 2 b, core 102a Optical fiber cable core 1022, one group of copper cash core 1023 of 1021, one group of optical fiber cable core, can be by digital video signal (such as HDMI letter Number or DVI signal or DP signal etc.) transmitted by optical fiber cable core 1021；USB2.0 or USB3.0 signal is organized optical fiber by another Core 1022 transmits, and copper cash core 1022 transmits low speed signal.The most such as, in Fig. 2 b, the core of numbering 1022 is copper cash core, Digital video signal (such as HDMI signal or DVI signal or DP signal etc.) can be transmitted by optical fiber cable core 1021；Will USB2.0 or USB3.0 signal is transmitted by another group copper cash core 1022, and copper cash core 1023 transmits low speed signal.It is worth note Meaning, it is also possible to some low speed signal and USB2.0/USB3.0 signal are shared copper cash core 1022 and transmits.

The core that the signals of telecommunication different for data form is organized by difference respectively can be transmitted.For example, it is possible to by first Group terminal and second group of terminal transmit the high speed signal of two kinds of different data formats respectively, the 3rd group of terminal can with transmission of one line or Multi-path low speed signal.It is to be appreciated that numbering to terminal does not represent the physical location often organizing terminal in the application, but in order to The terminal transmitting not same signal is made differentiation, and often in group terminal, each terminal does not the most limit arrangement mode (such as adjacent row Arrange, be spaced).It addition, adapter have the signal that several groups of terminals can optionally transmit divide several depending on.The number of core Amount can determine according to the signal type transmitted, such as, when by fiber-optic transfer HDMI signal, can pass through 4 singles Optical fiber or 4 core fibre transmission；When also needing to by other signals of fiber-optic transfer, phase can be increased such as high speed USB signal etc. The number of fibers answered or the core number of optical fiber.

It can be seen that multi-signal is when transmission in the application, shares a union joint by local terminal and multi-signal is passed Transport to a union joint of opposite end, and unlike prior art needs the multiple connection of multifiber by fiber-optic transfer unlike signal Head, the most advantageously in wiring, when cable 102 is connected up by needs through pvc pipe, the size referring to pvc pipe sets The size of meter union joint, to meet the requirement of field wiring.

As an example, the optical signal issuing optical fiber can be converted by the adapter at two ends.Emitting head 301 or reception head 302 can include at least one photoelectric conversion unit；Photoelectric conversion unit be connected to transmit high speed signal terminal and optical fiber it Between, after high speed signal is converted to optical signal, output is to connected optical fiber, or is believed by the light of the fiber-optic transfer connected Number be converted to high speed signal.For different application scenarios, optical cable can be passed through in the way of the more than one signal of telecommunication is with optical signal 103 transmission.Such as, Fig. 3 can include the first photoelectric conversion unit 305a, the second photoelectric conversion unit 305b.Opto-electronic conversion The quantity of unit and the quantity of optical fiber cable core can determine according to there being several signal of telecommunication to need by optical fiber cable core.

As a example by first group of terminal is connected with optical fiber cable core, first group is connected between terminal with optical fiber and has the first opto-electronic conversion Unit 305a.When external equipment (transmitter unit 101 or reception unit 103) needs to be passed one of which high speed signal by optical fiber Be passed to opposite end (this kind of signal of telecommunication by first group of incoming adapter 303 being connected with this external equipment of terminal or adapter 304, And utilize fiber-optic transfer to receiving unit 103 or transmitter unit 101) time, by first group of terminal, the signal of telecommunication received is passed To the first photoelectric conversion unit 305a, after being converted into optical signal via the first photoelectric conversion unit 305a, it is transferred to connected light On fine core.When the photoelectric conversion unit (being still referred to as the first photoelectric conversion unit 305a) of the opposite end of cable 102 receives herein After the optical signal of fiber-optic transfer, pass through connected union joint (adapter 304 or adapter 303) after being converted into the signal of telecommunication and pass to External equipment (receives unit 103 or transmitter unit 101).

For the different types of signal of telecommunication, the internal structure of photoelectric conversion unit can be different, and such as, Fig. 4 a is HDMI letter The theory diagram of number corresponding photoelectric conversion unit, including HDMI opto-electronic conversion transceiver 4011 and 4 passage Vcsel array half Conductor laser 4012.Owing to HDMI signal includes 4 to (8 tunnel) differential signal, therefore HDMI opto-electronic conversion transceiver 4011 with 4 pairs of terminals of adapter connect, and receive 4 and receive and dispatch HDMI differential signal, every pair of HDMI differential signal through HDMI opto-electronic conversion A road optical signal is generated after device 4011 conversion.The 4 road optical signals generated through HDMI opto-electronic conversion transceiver 4011 are sent out respectively Delivering in a passage of Vcsel array semi-conductor lasers 4012,4 passage Vcsel array semi-conductor lasers 4012 will be every Road optical signal is transmitted on an optical fibre channel respectively.At receiving terminal, by 4 passage Vcsel array semi-conductor lasers 4012 Receive 4 road optical signals, and be reduced into 4 pairs of HDMI differential signals, by 4 to transmission by HDMI opto-electronic conversion transceiver 4011 The terminal of HDMI signal exports external equipment.

Fig. 4 b is the theory diagram to the photoelectric conversion unit that USB3.0 signal is changed.In figure, branch road 1 is will USB3.0 signal is converted to the schematic diagram of optical signal, and interconnective USB3.0 opto-electronic conversion transceiver 4021 and single channel are partly led Volumetric laser emitter 4022 (semiconductor laser LD in figure) realizes the signal of telecommunication conversion to optical signal.From 1 opposite end of adapter The USB3.0 signal of son input is converted into 1 road optical signal after entering USB3.0 opto-electronic conversion transceiver 4021, then passes through quasiconductor Laser instrument LD 4022 is transmitted in an optical-fibre channel.

Branch road 2 is the schematic diagram converting optical signals to USB3.0 signal, and single channel light detecter for semiconductor 4024 is (in figure Semiconductor laser PD) from another optical-fibre channel, receive optical signal after, issue light-receiving trans-impedance amplifier and amplitude limit put Big device amplifies 4023, then after being converted into 2 road USB3.0 signals via USB3.0 opto-electronic conversion transceiver 4021, by 1 to connection The terminal of device exports to external equipment.

Easy to understand, Fig. 4 a, Fig. 4 b only give the exemplary theory of the photoelectric conversion unit corresponding to two kinds of high speed signals Bright, the structure for the photoelectric conversion unit corresponding to other kinds of high speed signal can design as required.

When needing the low speed signal transmitted by transmitter unit 101 or reception unit 103 is carried out remote transmission, permissible In the core of cable 102, add copper cash core, owing to copper core core low cost is in optical fiber, can be dropped by the transmission of copper core core The manufacturing cost of low cable.

Low speed signal can be divided into polytype, can also have various ways by the way of copper transmission, for example, it is possible to By each road low speed signal by a copper transmission to opposite end, it is also possible to by multi-path low speed signal through processing, be mixed into one By a copper transmission to opposite end after the signal of road.Still as a example by the scene shown in Fig. 2 a, for example, it is possible to by power supply signal, Signal, switching on and shutting down signal, infrared signal, CEC signal, HPD signal, DDC signal, master reset signal, Host Status signal etc. Signal is transferred to opposite end by a copper cash respectively, it is also possible to wherein part signal or whole signal are mixed into a road mixing low Speed signal is transferred to opposite end by a copper cash.Moreover, it is desirable to explanation is, it is also possible to by low speed signal with some at a high speed By copper transmission to opposite end after signal multiplexing, for example, when by copper transmission USB2.0 or USB3.0 signal, permissible Shared copper transmission will be passed through extremely after the low speed signal USB2.0/USB3.0 signal multiplexing of mixed low speed signal or unmixed Opposite end.

As an example, through copper transmission low speed signal, adapter can also include copper interfaces, copper interfaces The first drive circuit 306 and the second drive circuit 307 in Fig. 3 can be included；The low speed signal that two adapters are transmitted is permissible Having directivity, the first drive circuit 306 and the second drive circuit 307 lay respectively on a branch road in a transmission direction. When one end adapter to opposite end send low speed signal time, by the first drive circuit 306 bonder terminal is received low Speed signal is sent to copper cash after amplifying；When the adapter of one end sends to external equipment (transmitter unit 101 or reception unit 103) During low speed signal, by being sent to the end of adapter by copper cash after the low speed signal shaping filter that the second drive circuit will be received Son.If each transmission direction has the low speed signal on a more than road to need transmission, Ze Mei road low speed signal can be corresponding one the One drive circuit 306 or the second drive circuit 307.It is worthy of note, for some low speed signal (such as power supply signal, Signal etc.) can need not be transmitted by the first drive circuit 306 or the second drive circuit 307.

Fig. 4 c is the circuit diagram example of a kind of first drive circuit, and Fig. 4 d is the circuit diagram of a kind of second drive circuit Example.This example is not excluded for those skilled in the art and according to customary means, the concrete structure of circuit can be made adaptation and change.

After first drive circuit receives low speed signal TXD_TTL, through resistance R1 and R2 dividing potential drop, Q1 switchs amplification, Q2 Open collector output current signal TXD_Cable is driven on a copper cash；Second drive circuit is received by copper cash During RXD_Cable signal, resistance R5, R6 and R7 can regulate output Sink (absorption) electric current, complete current signal to receiving electricity Pressure signal conversion, transistor Q4 completes to export RXD_TTL signal shaping.Electric capacity C1 in first drive circuit, resistance R4 and Resistance R5 in two drive circuits, electric capacity C2 form RC filter circuit, the waveform of the low speed signal that regulation is transmitted.Due to two Drive circuit uses current mode drive and reception, so circuit structure is insensitive to copper wire lines impedance variation.Transistor Q1, Q2, Q3, Q4 use common 3904 and 3906 models can meet design requirement.

As an example, emitting head, reception head and core three part can be integrally machined molding, and cable length can be according to application Demand customizes.General small size high speed connector can be selected for emitting head and the adapter received in head, such as, can select Select DP adapter, HDMI connector etc., for example, MINI-DP adapter, HDMI TYPE D 19 foot adapter can be selected Or TYPE C 24 foot Male head connector, and other similar LEMO spininess miniature circular adapter.According to the terminal in adapter Number, and the signal kinds of the external equipment needs transmission connected, can define the signal type that each terminal is transmitted.Example As, can illustrate to be suitable for external equipment transmission HDMI, USB3.0, power supply signal and other low speed signals etc. in conjunction with Tables 1 and 2 Connector end sub-definite during multi-signal.Table 1, table 2 are as a example by the MINI-DP adapter of 20 pins.

Table 1 (emitting head)

19	17	15	13	11	9	7	5	3	1
										USB_SSRXP	USB_SSRXN	GND	POE	TXD_TTL	HDMI_RX0-	HDMI_RX0+	HDMI_RX2-	HDMI_RX2+	GND
USB_SSTXP	USB_SSTXN	GND	Vsupply	RXD_TTL	HDMI_CLK-	HDMI_CLK+	HDMI_RX1-	HDMI_RX1+	GND
										20	18	16	14	12	10	8	6	4	2

Table 2 (reception head)

19	17	15	13	11	9	7	5	3	1
										USB_SSTXP	USB_SSTXN	GND	POE	RXD_TTL	HDMI_TX0-	HDMI_TX0+	HDMI_TX2-	HDMI_TX2+	GND
USB_SSRXP	USB_SSRXN	GND	Vsupply	TXD_TTL	HDMI_CLK-	HDMI_CLK+	HDMI_TX1-	HDMI_TX1+	GND
										20	18	16	14	12	10	8	6	4	2

In Tables 1 and 2, wherein USB 3.0 signal takies two to high speed pin, and HDMI signal takies 4 to high speed pin； 13,14 pins are power supply signal pin, and 13 pin Vsupply power for emitting head and reception head internal circuit, usually 5V； 11,12 pins are low speed signal TXD_TTL pin and RXD_TTL pin, are connected by least two core copper cash in cable 102, use In transmitting mixed low speed signal, such as HDMI control signal (CEC, HPD, DDC etc.), infrared signal, desktop switching signal Deng.14 pin POE pins can be used for, by copper transmission power supply, being connected by least 1 core copper cash；Additionally emitting head and connecing Receive the head at least 1 core copper cash conjointly signal by cable 102, with POE power supply signal and TXD_TTL signal, RXD_TTL signal Form earth-return, it is achieved remote power feeding.As can be seen here in addition to these pins of TXD_TTL, RXD_TTL, POE and GND, Vsupply Can be individually from connected transmitter unit 101 or reception unit 102 power taking, so in the application scenario needing remote power feeding, being somebody's turn to do Cable 102 can provide at 4 core copper cash and connect for above-mentioned signal, and other high speed signal is all by optical fiber transmission.Need Bright, the merely illustrative explanation of table 2, when there is the terminal of multiple low speed signal, namely two ends need many copper transmission During low speed signal, for realizing remote power feeding, can by one end the terminal of one of them power supply signal and at least one ground letter Number terminal forms loop with at least one road low speed signal of each direction transmission.

Easy to understand, described by table 1, table 2 is only that example describes, and the definition for pin is not limited to this kind of side Formula, designer can redefine as required, such as, if need not the function of remote power feeding, then can be used as by POE pin Other signals transmission or idle；The high speed signal transmitted in some occasion is probably other signal types；The most such as, low speed Signal can be not through the low speed signal of mixed processing, and therefore every road low speed signal needs to take pin etc., The definition mode that pin is possible is no longer enumerated by this.

In the application, owing to Electric signal processing can be become optical signal in union joint by cable 102, need the telecommunications of transmission Number need not move through SERDES chip, but be directly over photoelectric conversion unit, be converted to the optical signal of multidiameter delay transmission.Example As, HDMI signal is made up of 4 road differential signals, under parallel transmission mode, it is not necessary to turned by SERDES by this 4 road differential signal Change, but every road signal is directly over photoelectric conversion unit and is changed into optical signal, is passed by 4 optical fiber or 14 core fibre Defeated, revert to standard HDMI signals at receiving terminal by reverse photoelectric conversion unit.Therefore transmitter unit 101 He can be simplified Receive the design of unit 103.Certainly, photoelectric conversion unit design at transmitter unit or is received single also dependent on needs by designer In unit.

In different application scenarios, transmitter unit 101 and reception unit 103 can corresponding different product structures.

Transmitter unit 101 can include the interface being connected with external equipment and the interface being connected with cable 102.

The value volume and range of product of the interface being connected with external equipment can determine according to the signal type of required transmission, and Fig. 5 is One theory diagram of transmitter unit 101.As a example by Fig. 5, can include first interface 501 (common, such as HDMI, DVI), Second interface 502, receives, by first interface 501, the high speed signal such as multi-media signal that equipment sends, by the second interface 502 Receive another kind of signal (usb signals of the most various USB peripheral).

Received usb signal can be low speed usb signal (such as USB1.0), it is also possible to be high speed USB signal (example Such as USB2.0, USB3.0 etc.).As an example, transmitter unit 101 can also include usb signal converting unit 503, can connect After receiving low speed usb signal, low speed usb signal is converted to high speed USB signal (such as USB2.0 signal, USB3.0 signal Deng).

It addition, applicant finds through research, the external equipment at two ends may need transmitted in both directions usb signal, USB2.0 Signal shares the signal of same transmission channel transmitting-receiving both direction, realizes the direction to transmission channel by time-switching and controls System, therefore can increase the time overhead of transmission USB2.0 signal, be difficult to the requirement meeting user to real-time.Therefore applicant opens Wound property design the scheme being transmitted two-way usb signal by USB3.0.Owing to USB3.0 signal has when transmitted in both directions The interface of full duplex, the passage receiving USB3.0 signal is separate with the passage sending USB3.0 signal, is independent of each other, therefore More convenient signal real-time Transmission.It is worthwhile to note that in addition to USB3.0 signal, however not excluded that other have two-way individual transmission passage Signal type.Based on this, by way of example, the usb signal converting unit 503 in transmitter unit 101 can be that USB3.0 changes core Sheet, is converted to USB3.0 letter by the non-USB3.0 signal (USB1.0 or USB2.0 signal) received from multi-media signal source 201 Number, or the USB3.0 signal received by cable 102 is converted into USB1.0 or USB2.0 signal export to multimedia believe Number source 201.

In some occasion, except first interface the 501, second interface 502, transmitter unit 101 can also be connect by other inputs Mouthful receive other external signal, still as a example by the scene of Fig. 2 a, for example, it is possible to by infrared input (IR_TX1 in Fig. 5)/defeated Go out (IR_RX1 in Fig. 5) signaling interface transmission infrared control signal, to realize controlling multi-media signal source 201 or other equipment Function.In other occasions, transmitter unit 101 can power interface (VCC terminal, the GND end in Fig. 5 of external power adapter Son), the power supply to transmitter unit 101 can be realized；Or give reception unit 103 remote power feeding by cable 102.As required, send out Penetrate unit 101 and can also include that (in physics realization, host computer control terminal can include following one to host computer control terminal 504 Or multiple interfaces is connected with the terminal corresponding to the mainboard in multi-media signal source 201: reset signal interface and disk read-write instruction Modulating signal interface etc.).Furthermore it is also possible to include the analog audio interface such as earphone, mike.As an example, those signals are permissible Transmit to cable 102 with the form of low speed signal.

3rd interface 505 is the interface that the adapter 303 with cable 102 matches, such as, if the connection of cable 102 Device selects the MINI-DP male seat of 20 terminals, then the 3rd interface 505 can select the MINI-DP female seat of 20 terminals, at some In example, in order to meet wiring and transmission demand, miniaturization can be selected and the interface of high speed signal can be supported.Connect by the 3rd The high speed signals such as the multi-media signal after processing locality, usb signal and other low speed signals are sent to receive unit by mouth 505 103, or receive the various signals that unit 103 is transmitted by cable 102.As an example, first interface 501 or the second interface 502 signals transmitted can be transferred to optical fiber by the terminal of the 3rd interface 505 with adapter 303, meets user in real time Property demand, other low speed signals can be transferred to copper cash by the terminal of the 3rd interface 505 with adapter 303, in order to saves Cost.In other example, in order to reduce cost further, the signal that first interface 501 is transmitted can be able to be passed through 3rd interface 505 is transferred to optical fiber with the terminal of adapter 303, usb signal that the second interface 502 is transmitted and other low speed Signal can be transferred to copper cash by the terminal of the 3rd interface 505 with adapter 303.

Easy to understand, Fig. 5 is the topology example of transmitter unit 101, is not meant to that transmitter unit 101 must comprise simultaneously All of unit and interface in figure, be also not precluded from making some unit, interface in Fig. 5 deformation or replacing with other lists simultaneously Unit and interface.

Such as Fig. 6, receiving unit 103 and include the 4th interface 605, this interface matches with the adapter 304 of cable 102, example As, if the adapter of cable 102 selects the MINI-DP male seat of 20 terminals, then the 3rd interface 505 can select 20 terminals MINI-DP female seat, in some example, in order to meet wiring and transmission demand, miniaturization can be selected and can support at a high speed The interface of signal.The various signals from adapter 304 are received by the 4th interface 505, and by with outward after processing locality The interface that portion's equipment connects is sent to external equipment, or is sent to by signals various after processing locality by the 4th interface 605 Penetrate unit 101.

As an example, corresponding with transmitter unit 101, receive unit 103 and can also include usb signal converting unit 603, This usb signal converting unit 603 can be USB3.0 conversion chip, the non-USB3.0 signal that will receive from terminal unit 203 (USB1.0 or USB2.0 signal) is converted to USB3.0 signal, or the USB3.0 signal conversion that will be received by cable 102 USB1.0 or USB2.0 signal is become to export to terminal unit 203.

The value volume and range of product receiving the interface that unit 103 is connected with external equipment can be according to the signal type of required transmission Determine.Such as, the 5th interface 601 (common, such as HDMI, DVI, DP) in Fig. 6, the 6th interface 602 are (common, such as Usb hub etc.)；By the 6th interface 602, usb signal issued various USB peripheral.In addition to this it is possible to by other Other external signal of interface, for example, it is possible to connect by infrared input (IR_TX2 in Fig. 6)/output (IR_RX2 in Fig. 6) Port transmission infrared control signal.It addition, in certain embodiments, receive unit 103 can also external power adapter, receive electricity Source signal (VCC, GND in Fig. 6), it is achieved to receiving unit 103 self or the power supply of transmitter unit 101.

Transmitter unit 101 and reception unit 103 can be by every road low speed signal by independent copper transmission, it is possible to Being multiple low speed signal to be mixed into a road low speed signal transmission to copper cash, it can in addition contain by unmixed or mixed Low speed signal and a road high speed signal share copper transmission.Accordingly, as example, transmitter unit 101 can also include processing list Unit, is connected with the adapter 303 of cable 102.As it is shown in figure 5, the multi-path low speed signal received can be sent by transmitter unit 101 To the first processing unit 506, multi-path low speed signal is packaged into a road mixed low speed signal and issues connection by the first processing unit 506 Device 303；Or the road mixed low speed signal sent by adapter 303 splits into multi-path low speed signal.Correspond, receive single Unit 103 can also include the second processing unit 606, is connected with the adapter 304 of cable 102.Second processing unit 606 is by package After mixed low speed signal unpack and identify multi-path low speed signal, or the multi-path low speed signal assemble that will receive from peripheral hardware becomes One tunnel mixed low speed signal issues adapter 304.As an example, the first processing unit 506 and the second processing unit 606 can have There are same or similar structure and function.

Fig. 7 is the system construction drawing under the application scenarios of host computer signal long-distance transmissions.System includes multimedia Signal source 201, transmitter unit 101, cable 102, reception unit 103, terminal unit 203.

In this example, the transmitting procedure of the signal being sent to terminal unit 203 for multi-media signal source 201 can refer to as follows Describe:

4 pairs of HDMI signals are transferred to the 2nd HDMI 722 by a HDMI 712 by multi-media signal source 201, will at least One road USB1.0/2.0 signal is transferred to secondary USB interface 721 by the first USB interface 711；The desktop in multi-media signal source is opened OFF signal is sent to host computer control terminal 723 by mainboard terminal 713.

4 road HDMI signals are issued the 3rd interface 726 by the 2nd HDMI 722, and the 3rd interface 726 connects the 4 of adapter 303 To terminal (such as, the terminal of numbering 3-10 in table 1).USB1.0/2.0 signal is issued USB3.0 conversion by secondary USB interface 721 Chip 724, the USB3.0 signal after conversion issues the 3rd interface 726, and the 3rd interface 726 connects 1 pair of terminal of adapter 303 (terminal of numbering 18,20 in such as table 1).

The low speed control signals such as desktop switching signal, infrared control signal IR_TX1, CEC signal are passed into a MCU 725 are processed into the first mixed low speed signal, (such as, are compiled in table 1 by two terminals of the 3rd interface 726 input connector 303 The terminal of numbers 11,12).Power supply signal VCC and earth signal GND connects two terminals of adapter 303 by the 3rd interface 726 (terminal of the numbering 14,15 in such as table 1), for adapter 303 in-line power.One terminal (such as table 1 of adapter 303 In the terminal of numbering 13) with the terminal (terminal of numbering 16 in such as table 1) and at least of at least one transmission earth signal The terminal (terminal of the numbering 11,12 in such as table 1) of transmission low speed signal is formed earth-return, long-range for receiving unit 103 Power supply.

4 pairs of HDMI signals are converted into 4 road light after the process of HDMI signal photoelectric conversion unit 751a by adapter 303 Signal, is respectively transmitted on 4 optical fiber cable cores of first group of optical fiber.1 road USB3.0 signal is through USB3.0 signal opto-electronic conversion Unit 752a is converted to a road optical signal, is transferred to by a terminal (terminal of numbering 17 in such as table 1) of adapter 303 On 1 optical fiber cable core of second group of optical fiber.First mixed low speed signal is transferred to the first copper cash through the first drive circuit 753a On.

The 4 road optical signals received are reduced into 4 pairs of HDMI signals by HDMI signal photoelectric conversion unit 751b, by connecting 4 pairs of terminals (terminal of numbering 3-10 in such as table 2) of device 304 export to the 4th interface 731.1 road optical signal is via USB3.0 Signal photoelectric conversion unit 752b is reduced into 1 road USB3.0 signal, by 1 terminal (volume in such as table 2 of adapter 304 The terminal of numbers 18) output is to the 4th interface 731.First mixed low speed signal is through the second drive circuit 754b process, by even The terminal (terminal of numbering 11 in such as table 2) connecing device 304 exports to the 4th interface 731.

USB3.0 signal is issued USB3.0 conversion chip 732 and is reduced into multichannel USB1.0/USB2.0 letter by the 4th interface 731 Number, it is respectively issued to keyboard interface 741, mouse interface 742, utilizing camera interface 743 by usb hub 734.4 pairs of HDMI signals Display interface device 744 is issued through the 3rd HDMI 735.First mixed low speed signal dresses up multichannel through the 2nd MCU 733 deblocking Low speed signal, desktop switching signal therein controls switch 736 by desktop and issues desktop switch 745, infrared signal IR_RX2 Issuing infrared interface, CEC signal issues display interface device 744 by the 3rd HDMI 735.

In this example, transmitting procedure terminal unit 203 being sent to multi-media signal source 201 signal can refer to retouch as follows State:

Receive the usb signal biography that keyboard interface 741, mouse interface 742 etc. are sent by unit 102 by usb hub 734 It is defeated by USB3.0 conversion chip 732.

Usb hub 734 connects 1 usb signal terminal (terminal of numbering 17 in table 2) of adapter 303.

Desktop switching signal, infrared signal IR_TX2, CEC signal, HPD signal, DDC signal etc. are passed into the 2nd MCU 733 are processed into the second mixed low speed signal, by the terminal of the 4th interface 731 input connector 304 (end of numbering 12 in table 2 Son).Power supply signal VCC and earth signal GND connects two terminals of adapter 304 (in such as table 2 by the 4th interface 731 The terminal of numbering 14,15), for adapter 304 in-line power.One terminal of adapter 304 be (numbering 13 in such as table 2 Terminal) and at least one terminal (terminal of numbering 16 in such as table 2) transmitting earth signal and at least one pair of transmission low speed letter Number terminal (terminal of the numbering 11,12 in such as table 2) formed earth-return, for transmitter unit 101 remote power feeding.

1 road USB3.0 signal is converted to a road light letter through USB3.0 signal photoelectric conversion unit 752b by adapter 304 Number, it is transferred on 1 optical fiber cable core of second group of optical fiber.Second mixed low speed signal is transferred to through the first drive circuit 753b On second copper cash.

One road optical signal is reduced into 1 road USB3.0 signal via USB3.0 signal photoelectric conversion unit 752a, by connecting 1 terminal (terminal of the numbering 17 in such as table 1) of device 303 exports to the 3rd interface 726.Second mixed low speed signal passes through Second drive circuit 754a process, is exported to the by the terminal (terminal of the numbering 12 in such as table 1) of adapter 303 Three interfaces 726.

USB3.0 signal is issued USB3.0 conversion chip 724 and is reduced into multichannel USB1.0/USB2.0 letter by the 3rd interface 726 Number, issue the first USB interface 711 by secondary USB interface 721.Second mixed low speed signal decapsulates through a MCU 725 Becoming multi-path low speed signal, wherein desktop switching signal issues mainboard terminal 713, infrared signal IR_ by host computer control terminal 723 RX1 issues infrared interface, and CEC signal, HPD signal, DDC signal issue a HDMI 712 by the 2nd HDMI 722.

Device embodiment described above is only schematically, and the wherein said unit illustrated as separating component can To be or to may not be physically separate, the parts shown as unit can be or may not be physics list Unit, i.e. may be located at a place, or can also be distributed on multiple NE.Can be selected it according to the actual needs In some or all of module realize the purpose of the application scheme.Those of ordinary skill in the art are not paying creative labor In the case of Dong, i.e. it be appreciated that and implement.

The foregoing is only the preferred embodiment of the application, not in order to limit the application, all essences in the application Within god and principle, any modification, equivalent substitution and improvement etc. done, should be included within the scope of the application protection.

Claims

1. a signal extension fixture, it is characterised in that including transmitter unit and receive unit, described transmitter unit and reception are single Unit is connected by cable, and described cable includes emitting head, core and the reception head being sequentially connected with；

The terminal of described adapter is connected with the terminal of described transmitter unit or reception unit, at least two kinds of signals of telecommunication of transmission, its Middle a kind of signal of telecommunication is high speed signal；

The core at least two groups that described emitting head or reception head connect；One of which core is optical fiber, and another group core is light Fibre or copper cash；Often group optical fiber connects the terminal transmitting a kind of high speed signal, and described copper cash connects transmission low speed signal or other are high The terminal of speed signal.

Device the most according to claim 1, it is characterised in that described emitting head or reception head include that at least one photoelectricity turns Change unit；Described photoelectric conversion unit is connected to transmit between terminal and the optical fiber of described high speed signal, for by described high speed Signal exports to connected optical fiber after being converted to optical signal, or is converted to the optical signal of the fiber-optic transfer connected believe at a high speed Number.

Device the most according to claim 1, it is characterised in that one of which high speed signal is digital video signal, described Digital video signal includes HDMI signal or DVI signal or DP signal；Another kind of high speed signal is USB2.0 or USB3.0 signal； Described digital video signal passes through one of which fiber-optic transfer, and described USB2.0 or USB3.0 signal is by another group optical fiber or copper Line transmits.

Device the most according to claim 3, it is characterised in that described transmitter unit includes USB3.0 converting unit, is used for USB1.0 or USB2.0 signal is converted into USB3.0 signal.

Device the most according to claim 1, it is characterised in that described low speed signal includes one or more of signal: At least one power supply signal, at least one earth signal, switching on and shutting down signal, infrared signal, CEC signal, HPD signal, DDC signal, Master reset signal, Host Status signal, mixed low speed signal；Described mixed low speed signal by switching on and shutting down signal, infrared signal, In CEC signal, HPD signal, DDC signal, master reset signal, Host Status signal, the mixing of at least two signal generates；Described Low speed signal passes through shared copper transmission by independent copper transmission or after USB2.0/USB3.0 signal multiplexing.

Device the most according to claim 5, it is characterised in that

The terminal of one of them transmission power supply signal is connected with the power supply of described transmitter unit or reception unit, and another transmits electricity The terminal of source signal is formed with the terminal of at least one transmission earth signal and the terminal of other at least one pair of transmission low speed signals Earth-return.

Device the most according to claim 5, it is characterised in that described transmitter unit or reception unit also include processing list Unit, is transferred to described copper cash at least one road low speed signal is packaged into a road mixed low speed signal；Or described copper cash is passed At least one road low speed signal is dressed up in defeated mixed low speed signal deblocking.

Device the most according to claim 1, it is characterised in that described adapter also includes that the first drive circuit and second drives Galvanic electricity road；

Described first drive circuit is sent out after being amplified by the described low speed signal received by transmitter unit or reception unit Give copper cash；

Described second drive circuit is sent to described transmitter unit after the low speed signal shaping filter that will be received by copper cash Or reception unit.

Device the most according to claim 1, it is characterised in that described union joint is DP adapter or HDMI connector.

Device the most according to claim 1, it is characterised in that described union joint, cable and reception head are assembled into one.

11. 1 kinds of cables, it is characterised in that include emitting head, core and the reception head being sequentially connected with；

12. cables according to claim 11, it is characterised in that described emitting head or reception head include at least one photoelectricity Converting unit；Described photoelectric conversion unit is connected to transmit between terminal and the optical fiber of described high speed signal, for by described height Speed signal exports to connected optical fiber after being converted to optical signal, or is converted to by the optical signal of the fiber-optic transfer connected at a high speed Signal.

13. cables according to claim 12, it is characterised in that described photoelectric conversion unit includes that HDMI opto-electronic conversion is received Send out device and Vcsel array semi-conductor lasers；Described HDMI opto-electronic conversion transceiver is by transmitting the terminal reception of HDMI signal HDMI signal, and transfer optical signal to, it is transmitted into described optical fiber via Vcsel array semi-conductor lasers；And by Vcsel battle array Row semiconductor laser receives optical signal from described optical fiber, and is converted to send out after HDMI signal via HDMI opto-electronic conversion transceiver Give the terminal of transmission HDMI signal；Or

Described photoelectric conversion unit includes USB3.0 opto-electronic conversion transceiver, single channel semiconductor laser transmitter, single channel half Conductor photodetector, light-receiving trans-impedance amplifier and limiting amplifier；USB3.0 opto-electronic conversion transceiver is by transmission USB3.0 The terminal reception USB3.0 signal of signal, and be converted to optical signal, it is transmitted into via described single channel semiconductor laser transmitter Described optical fiber；Described single channel light detecter for semiconductor detects the optical signal that described optical fiber is transmitted, and by described light-receiving After trans-impedance amplifier amplifies, be converted to the signal of telecommunication via described USB3.0 opto-electronic conversion transceiver and be sent to transmit USB3.0 signal Terminal.

14. cables according to claim 11, it is characterised in that one of which high speed signal is digital video signal, institute State digital video signal and include HDMI signal or DVI signal or DP signal；Another kind of high speed signal is USB2.0 or USB3.0 letter Number；Described digital video signal passes through one of which fiber-optic transfer, and described USB2.0 or USB3.0 signal organizes optical fiber by another Or copper transmission.

15. cables according to claim 11, it is characterised in that described low speed signal includes that one or more of is believed Number: at least one power supply signal, at least one earth signal, switching on and shutting down signal, infrared signal, CEC signal, HPD signal, DDC believe Number, master reset signal, Host Status signal, mixed low speed signal；Described mixed low speed signal is by switching on and shutting down signal, infrared letter Number, in CEC signal, HPD signal, DDC signal, master reset signal, Host Status signal the mixing of at least two signal generate；Institute State low speed signal and pass through shared copper transmission by independent copper transmission or after USB2.0/USB3.0 signal multiplexing.

16. cables according to claim 15, it is characterised in that

17. cables according to claim 11, it is characterised in that described adapter also includes the first drive circuit and second Drive circuit；

Described first drive circuit is sent out after being amplified by the described low speed signal arrived by the terminal reception of transmission low speed signal Give copper cash；

Described second drive circuit is sent to transmit low speed signal after the low speed signal shaping filter that will be received by copper cash Terminal.

18. cables according to claim 11, it is characterised in that described union joint is DP adapter or 1HDMI adapter.

19. cables according to claim 11, it is characterised in that described union joint, cable and reception head are assembled into one.