CN105824774A - High speed serial transmission multitask transmission module and electronic device - Google Patents
High speed serial transmission multitask transmission module and electronic device Download PDFInfo
- Publication number
- CN105824774A CN105824774A CN201510002928.8A CN201510002928A CN105824774A CN 105824774 A CN105824774 A CN 105824774A CN 201510002928 A CN201510002928 A CN 201510002928A CN 105824774 A CN105824774 A CN 105824774A
- Authority
- CN
- China
- Prior art keywords
- switch
- signal
- multitask
- transmission
- transport module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Information Transfer Systems (AREA)
Abstract
A high speed serial transmission multitask transmission module comprises at least one outer signal connecting end and at least one circuit connecting end; the multitask transmission module comprises a multitask device and at least one resistor unit; the multitask device comprises a plurality of switches, wherein each switch comprises a first end and a second end; the at least one resistor unit is coupled to the multitask device, and each resistor unit is coupled to each outer signal connecting end; the first end of each switch is coupled to the at least one outer signal connecting end, and the second end of each switch is coupled to the at least one circuit connecting end. The multitask device is used for switching a plurality of links so as to transfer signals; when the at least one resistor unit is used for transferring signal, the signal reflection of the at least one outer signal connecting end is eliminated.
Description
Technical field
The present invention provides a kind of multitask transport module, especially with regard to multitask transport module and the electronic installation thereof of a kind of high speed serial transmission.
Background technology
Now, along with the Fast Growth of science and technology, the speed of information transmission plays important role.In wired high speed communication transmission system, if running into when having to carry out situation that the switching of signal selects, then certainly will add multiplexer on signal bang path in systems and carry out.
Refer to the schematic diagram that Fig. 1, Fig. 1 are traditional high speed serial transmission system.High speed serial transmission system 1 includes multiplexer 10, radiating circuit block 11 and receives circuit blocks 12.Multiplexer 10 is coupled to radiating circuit block 11, receives circuit blocks 12 and is coupled to multiplexer 10.More carefully saying, in reality application, radiating circuit block 11 is arranged in different devices or module from the corresponding reception circuit blocks 12 coupled, and carries out signal transmission through wired mode.
On ideal situation, should be with the first transmitting terminal TXO of radiating circuit block 11 in the intensity receiving the reception signal that circuit blocks 12 receives1Or the second transmitting terminal TXO2The intensity sending signal transmitted is identical.For example, if multiplexer 10 selects by the first transmitting terminal TXO of radiating circuit block 111During the transmission signal S1 transmitted, it receives the receiving terminal RXI of circuit blocks 12 in the case of ideal1The reception signal S2 received should be identical with sending signal S1 intensity.But, under actual application, because the switch of multiplexer 10 own i.e. has an impedance, therefore can decay through the signal strength of the transmission signal S1 of multiplexer 10.
Say further, owing to when signal carries out high-speed transfer, when signal is on circuit or transmission cable, the situation having had signal attenuation occurs.Therefore, time on the bang path of signal again by the impedance influences of external module, the speed of signal transmission, intensity even integrity are the most attenuated, thus external module be likely to become high speed serial transmission system 1 cannot the stumbling-block of tempo of penetration bottleneck further.
Summary of the invention
The embodiment of the present invention proposes the multitask transport module of a kind of high speed serial transmission, has at least one external signal and connects end and at least one circuit connecting end.Multitask transport module includes multiplexer and at least one resistance unit.Multiplexer includes that a plurality of switch, each switch have the first end and the second end.At least one resistance unit is coupled to multiplexer, and each at least one resistance unit is coupled to each at least one external signal and connects end.First end of each switch couples at least one external signal and connects end, and the second end of each switch is coupled at least one circuit connecting end.Multiplexer is in order to switch a plurality of link to carry out signal transmission.At least one resistance unit, in order to when carrying out signal transmission, eliminates at least one external signal and connects the signal reflection of end.
The embodiment of the present invention proposes the electronic installation of a kind of high speed serial transmission.Electronic installation includes multitask transport module and signal processing module.Multitask transport module includes multiplexer and at least one resistance unit.Multiplexer includes that a plurality of switch, each switch have the first end and the second end.Signal processing module is coupled to multitask transport module.At least one resistance unit is coupled to multiplexer, and each at least one resistance unit is coupled to each at least one external signal and connects end.First end of each switch couples at least one external signal and connects end, and the second end of each switch is coupled at least one circuit connecting end.Multiplexer is in order to switch a plurality of link to carry out signal transmission.At least one resistance unit, in order to when carrying out signal transmission, eliminates at least one external signal and connects the signal reflection of end.Signal processing module sends signal in order to produce when carrying out signal transmission or processes reception signal.
In sum, the embodiment of the present invention proposes the multitask transport module of high speed serial transmission and electronic installation are it can be avoided that tradition uses multiplexer to cause the phenomenon of signal attenuation between electronic installation and electronic installation.More carefully saying, the embodiment of the present invention utilizes after having switched transmission link and carries out the mode of signal process again, it is possible to avoids the impact of the signal attenuation that transmission signal causes through the impedance of multiplexer, and maintains the integrity of transmission signal.In simple terms, the embodiment of the present invention is effectively improved the signal attenuation of conventional high rate transmission, to reach improve bandwidth and reduce the purpose of signal consume.
It is further understood that inventive feature and technology contents for enabling, refers to the detailed description below in connection with the present invention and accompanying drawing, but these explanations and institute's accompanying drawings are intended merely to the present invention is described, rather than the interest field of the present invention is made any restriction.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of traditional high speed serial transmission system.
Fig. 2 is the schematic diagram of the high speed serial transmission system of the embodiment of the present invention.
Fig. 3 is the circuit diagram of the radiating circuit block of the multitask transport module of the embodiment of the present invention.
Fig. 4 is the circuit diagram of the reception circuit blocks of the multitask transport module of the embodiment of the present invention.
Fig. 5 is the circuit diagram of the radiating circuit block of the multitask transport module of another embodiment of the present invention.
Fig. 6 is the circuit diagram of the reception circuit blocks of the multitask transport module of another embodiment of the present invention.
Detailed description of the invention
Various exemplary embodiments will be more fully described referring to alterations below, alterations will be shown some exemplary embodiments.But, concept of the present invention may embody in many different forms, and should not be construed as limited by exemplary embodiments set forth herein.Specifically, it is provided that these exemplary embodiments make the present invention for detailed and complete, and will will fully pass on the category of concept of the present invention to those who familiarize themselves with the technology.All graphic in, can be in order to clear and lavish praise on oneself size and the relative size in Ceng Ji district.Similar numeral indicates similar assembly all the time.
Although should be understood that possible use term first, second, third, etc. are to describe various assembly herein, but these assemblies should not limited by these terms.These terms are to distinguish an assembly and another assembly.Therefore, the first assembly being discussed herein below can be described as second assembly teaching without departing from concept of the present invention.As used herein, term "or" potentially includes any one or all combinations of many persons of listing in project of being associated depending on practical situation.
The present invention utilizes circuit structure, allows transmission signal will not cause too much signal attenuation because of the setting of the multiplexer in high speed serial transmission system when transmission.Then the embodiment of the present invention be will be further illustrated.
Refer to the schematic diagram of the high speed serial transmission system that Fig. 2, Fig. 2 are the embodiment of the present invention.High speed serial transmission system 2 includes electronic installation 21 and 22.Electronic installation 21 and 22 is respectively provided with emission interface TXO and receiving interface RXI.Electronic installation 21 includes multitask transport module 210 and signal processing module 211, and electronic installation 22 includes multitask transport module 220 and signal processing module 221.Signal processing module 211 is coupled to multitask transport module 210, and signal processing module 221 is coupled to multitask transport module 220.Through the mode (such as cable) of wired connection, the emission interface TXO of electronic installation 21 is coupled to the receiving interface RXI of electronic installation 22, and/or the receiving interface RXI of electronic installation 21 is coupled to the emission interface TXO of electronic installation 22.In embodiments of the present invention, the emission interface TXO of electronic installation 21 and 22 can have more than one transmitting terminal, and receiving interface RXI can have more than one receiving terminal.
It should also be noted that the high speed serial transmission system 2 in Fig. 2 embodiment is a bidirectional transmission system, but the present invention is not limited to this.For example, the emission interface TXO of the electronic installation 22 in Fig. 2 can be removed with the receiving interface RXI of electronic installation 21, or, the emission interface TXO of the electronic installation 21 in Fig. 2 can be removed with the receiving interface RXI of electronic installation 22, and makes high speed serial transmission system 2 merely comprise a unidirectional transmission system.
The wire communication of information exchange (such as, one or more orders and/or data) is provided through multitask transport module 210 and 220 between electronic installation 21 and 22.Electronic installation 21 and 22 is independence or discrete equipment, and it can be combined in/or be coupled to another electronic installation, such as personal computer, server, device for vehicular electronic or other need to apply the device of wire transmission.In the present embodiment, electronic installation 21 can be personal computer, tablet PC, notebook computer etc., and electronic installation 22 can be side hard disk, recorder, printer, screen etc..But, in the case of without departing from the spirit and scope of the present invention, for those skilled in the relevant art it is apparent that any other suitably transmit system.
Signal processing module 211 and 221 includes suitable logic, circuit and/or coding.More carefully saying, signal processing module 211 and 221 has at least one circuit end, in order to be electrically connected with other circuit units.In electronic installation 21, at least one transmitting terminal that transmitting signal is sent to the emission interface TXO that multitask transport module 210 couples is launched by least one radiating circuit end of the radiating circuit interface of signal processing module 211, or, the reception signal that at least one at least one receiving terminal receiving the receiving interface RXI that multitask transport module 210 is coupled by circuit end receiving circuit interface of signal processing module 211 is received processes.The function of signal processing module 211 is identical with the function of signal processing module 221, repeats no more in this.
Multitask transport module 210 and 220 includes suitable logic, circuit and/or coding, in order to provide the information between electronic installation 21 and 22 to transmit.In electronic installation 21, multitask transport module 210 couples signal processing module 211, and couples emission interface TXO and receiving interface RXI in order to transmission signal.On the other hand, multitask transport module 210 is when the emission interface TXO of electronic installation 21 connects cable, send test signal through emission interface TXO, determine whether resistance value or the capacitance of the reflection signal of cable, control multiplexer 2101 with generation control signal and carry out link switching.But reality apply on, multitask transport module 210 can pass through hardware, the mode of software realizes judging cable, the present invention not with this as restriction.In embodiments of the present invention, the function of multitask transport module 210 is identical with the function of multitask transport module 220, repeats no more in this.
Then, the detailed circuit of multitask transport module 210 will be illustrated further.Circuit diagram please refer to the radiating circuit block of the multitask transport module that Fig. 2 and Fig. 3, Fig. 3 are the embodiment of the present invention.Radiating circuit block is to be arranged at electronic installation 21 as an example, multitask transport module 210 has the first external signal and connects end P1, the second external signal connection end P2 and the first circuit connecting end P3, and includes multiplexer 2101 and resistance unit 2102,2103.Multiplexer 2101 includes switching 2101a and 2101b.
Multiplexer 2101 is in order to switch a plurality of link to carry out providing electronic installation 21 to carry out signal transmission.First end of the switch 2101a of multiplexer 2101 is coupled to the first external signal and is connected end P1 with resistance unit 2102, and first end of the switch 2101b of multiplexer 2101 is coupled to the second external signal with resistance unit 2103 and is connected end P2.More carefully saying, first end of switch 2101a connects end P1 through the first external signal of multitask transport module 210 and is coupled to the first transmitting terminal TXO of emission interface TXO1, and switch first end of 2101b and connect end P2 through the second external signal of multitask transport module 210 and be coupled to the second transmitting terminal TXO of emission interface TXO2.It addition, second end of the switch 2101a of multiplexer 2101 and the second end switching 2101b couple the first circuit connecting end P3.More carefully saying, the first circuit connecting end P3 that second end of switch 2101a passes through multitask transport module 210 with the second end switching 2101b couples radiating circuit end TX (for example, radiating circuit end of the radiating circuit interface of signal processing module 211).
It is noted that in embodiments of the present invention, the first transmitting terminal TX1With the second transmitting terminal TX2Using the specification of USB3.1type-C as embodiment.More carefully say, in the specification of USB3.1type-C, its joint (for example, emission interface TXO or receiving interface RXI) the most completely the same, it is impossible to distinguish positive and negative, if not carrying out the switching of link, then the signal received by electronic installation 21 or 22 there may be mistake.Therefore, electronic installation 21 is through multitask transport module 210 when the cable that emission interface TXO is connected, and the channel resistance value of test cable or channel capacitance, to judge to be somebody's turn to do by the first transmitting terminal TX1Or the second transmitting terminal TX2Carry out signal transmission.But, in other embodiments, tradition USB transmission end, PCIe transmission ends, one of them realization of DisplayPort transmission ends and SAS/SATA transmission ends can also be applied to.
In embodiments of the present invention, multiplexer 2101 switches on one of them of a plurality of link through switch 2101a, 2101b (link is the most sequentially by radiating circuit end TX, switch 2101a and the first transmitting terminal TXO1Signal link, and sequentially by radiating circuit end TX, switch 2101b and the second transmitting terminal TXO2Signal link), and further provide for electronic installation 21 and carry out signal transmission.
It addition, resistance unit 2102,2103 is a terminal resistance, in order to when multitask transport module 210 carries out signal transmission, eliminates the first external signal and connect end P1 or the signal reflection of the second external signal connection end P2.More carefully say, the resistance unit 2102,2103 of the embodiment of the present invention in the specification of USB3.1type C with 50 ohm of settings, but those skilled in the art should be appreciated that in other embodiments or specification limit and can also the resistance unit of other numerical value be configured, the present invention not with this as restriction.
On the other hand, please refer to the circuit diagram of reception circuit blocks of the multitask transport module that Fig. 2 and Fig. 4, Fig. 4 are the embodiment of the present invention.Receive circuit blocks to be arranged at electronic installation 22 as an example, multitask transport module 220 has the first external signal and connects end P5, the second external signal connection end P6 and the first circuit connecting end P7, and includes multiplexer 3201 and resistance unit 3202,3203.Multiplexer 3201 includes switching 3201a and 3201b.
The multiplexer 2101 of radiating circuit block in corresponding aforementioned electronic 21, multiplexer 3201 is similarly in order to switch a plurality of link to carry out providing electronic installation 22 to carry out signal transmission.First end of the switch 3201a of multiplexer 3201 is coupled to the first external signal and is connected end P5 with resistance unit 3202, and first end of the switch 3201b of multiplexer 3201 is coupled to the second external signal with resistance unit 3203 and is connected end P6.More carefully saying, first end of switch 3201a connects end P5 through the first external signal of multitask transport module 220 and is coupled to the first receiving terminal RXI of receiving interface RXI1, and first end of the switch 3201b of multiplexer 3201 connects end P6 through the first external signal of multitask transport module 220 and is coupled to the second receiving terminal RXI of receiving interface RXI2.It addition, second end of switch 3201a of multiplexer 3201 and second end of 3201b couple the first circuit connecting end P7.More carefully saying, second end of switch 3201a and second end of 3201b pass through the first circuit connecting end P7 of multitask transport module 220 and couple reception circuit end RX (for example, reception circuit end receiving circuit interface of signal processing module 211).
Similarly, in embodiments of the present invention, the first receiving terminal RXI1With the second receiving terminal RXI2Equally using the specification of USB3.1type-C as embodiment.Multitask transport module 220, should be by the first transmitting terminal TX with judgement according to the test signal that multitask transport module 210 is sent when the cable that receiving interface RXI connects1Or the second transmitting terminal TX2Carry out signal transmission.But, in other embodiments, also may correspond to the first transmission ends TXO of electronic installation 211With the second transmission ends TXO2With tradition USB transmission end, PCIe transmission ends, one of them setting of DisplayPort transmission ends and SAS/SATA transmission ends.
It is apparent that radiating circuit block embodiment and the reception circuit blocks embodiment of Fig. 4, radiating circuit block and reception circuit blocks according to Fig. 3 are symmetrical circuit structure.More carefully saying, multiplexer 2101 is arranged at the first transmitting terminal TXO1, the second transmitting terminal TXO2And between radiating circuit end TX, and multiplexer 3201 is arranged at the first receiving terminal RXI1, the second receiving terminal RXI2And receive between circuit end RX.
In simple terms, the setting of transmitter and receiver circuit block through the multitask transport module of Fig. 3 Yu Fig. 4, there is provided high speed serial transmission system 2 in 2 transmission means that one (2-to-1) is selected, after i.e. completing the action of handoff links before transmission signal, carry out signal transmission again.Therefore, intensity and the integrity of transmission signal will not effectively be promoted again through the resistive degeneration of tradition multiplexer when electronic installation 21 and 22 carries out signal transmission.For example, the reception signal strength of the reception circuit blocks of the multitask transport module 220 of electronic installation 22 can be similar in appearance to the transmission signal strength of the radiating circuit block of the multitask transport module 210 of electronic installation 21.But, though the multiplexer 2101,3201 of the embodiment of the present invention with two to one as explanation, but those skilled in the art should be appreciated that can also three to one, many-to-one mode implement, the present invention not with this as restriction.
On the other hand, referring back to Fig. 2, multitask transport module 210 and 220 also can have the radiating circuit block of Fig. 3 embodiment and the reception circuit blocks of Fig. 4 embodiment simultaneously, those skilled in the art should be appreciated that, the present invention only arranges radiating circuit block using multitask transport module 210 and multitask transport module 220 arranges reception circuit blocks as explanation, not with this as restriction.
Follow-up will go on to say another embodiment of the present invention.Referring to Fig. 2 and Fig. 5, Fig. 5 is the circuit diagram of the radiating circuit block of task transmission module more than another embodiment of the present invention.Similarly, radiating circuit block is to be arranged at electronic installation 21 as an example, multitask transport module 210 has the first external signal and connects end P1, the second external signal connection end P2, the first circuit connecting end P3 and second circuit connection end P4, and includes multiplexer 4101 and resistance unit 4102,4103.Multiplexer 4101 includes switching 4101a, 4101b, 4101c and 4101d.
Multiplexer 4101 is in order to switch a plurality of link to carry out providing electronic installation 21 to carry out signal transmission.First end of the switch 4101a of multiplexer 4101, first end of switch 4101c are coupled to the first external signal and are connected end P1 with resistance unit 4102, and first end of the switch 4101b of multiplexer 4101, first end of switch 4101d are coupled to the second external signal with resistance unit 4103 and are connected end P2.More carefully saying, the first external signal that first end of switch 4101a passes through multitask transport module 210 with first end of switch 4101c is connected end P1 and is coupled to the first transmitting terminal TXO of emission interface TXO1, and first end of the switch 4101b of multiplexer 4101 is connected end P2 with first end of switch 4101d through the second external signal of multitask transport module 210 and is coupled to the second transmitting terminal TXO of emission interface TXO2。
It addition, second end of the switch 4101a of multiplexer 4101 and the second end switching 4101b couple the first circuit connecting end P3, and second end of the switch 4101c of multiplexer 4101 couples second circuit with second end of switch 4101d and is connected end P4.More carefully saying, the first circuit connecting end P3 that second end of switch 4101a passes through multitask transport module 210 with the second end switching 4101b couples the first radiating circuit end TX1(for example, one of them radiating circuit end of the radiating circuit interface of signal processing module 211), the first circuit connecting end P4 that second end of switch 4101c passes through multitask transport module 210 with the second end switching 4101d couples the second radiating circuit end TX2(for example, other in which radiating circuit end of the radiating circuit interface of signal processing module 211).
In embodiments of the present invention, the first radiating circuit end TX1With the second radiating circuit end TX2Can be respectively with USB transmission end, DisplayPort transmission ends or one of them realization of SAS/SATA transmission ends.For example, the first radiating circuit end TX1With the second radiating circuit end TX2USB transmission end and PCIe transmission ends can be respectively.
It should be noted that in embodiments of the present invention, multiplexer 4101 has a plurality of link group.More carefully saying, multiplexer 4101 has the first link group and the second link group.First link group includes sequentially by the first radiating circuit end TX1, switch 4101a, the first external signal connect the first link of being formed of end P1 and sequentially by the second radiating circuit end TX2, switch 4101d, the second external signal connect the second link of being formed of end P2；Second link group includes sequentially by the first radiating circuit end TX1, switch 4101b, the second external signal connect the 3rd link that formed of end P2 and sequentially by the second radiating circuit end TX2, switch 4101c, the first external signal connect the 4th link that formed of end P1.
Switch 4101a and switch 4101d is controlled by the first control signal and selects the first link group with offer multitask transport module 210, and switch 4101b and switch 4101c is controlled by the second control signal to provide multitask transport module 210 to select the second link group.In other words, multitask transport module 210 controls switching use the first link group or the second link group through the first control signal and the second control signal.More carefully say, as described in the previous embodiments, multitask transport module 210 is when the emission interface TXO of electronic installation 21 connects cable, test signal is sent through emission interface TXO, determine whether the reflection resistance value of signal or the capacitance of cable, control signal and carry out link group switching to control multiplexer 4101 producing the first control signal or second.
On the other hand, please refer to the circuit diagram of reception circuit blocks of the multitask transport module that Fig. 2 and Fig. 6, Fig. 6 are another embodiment of the present invention.Similarly, receive circuit blocks to be arranged at electronic installation 22 as an example, multitask transport module 210 has the first external signal and connects end P5, the second external signal connection end P6, the first circuit connecting end P7 and second circuit connection end P8, and includes multiplexer 5101 and resistance unit 5102,5103.Multiplexer 5101 includes switching 5101a, 5101b, 5101c and 5101d.
Multiplexer 5101 is in order to switch a plurality of link to carry out providing electronic installation 22 to carry out signal transmission.First end of the switch 5101a of multiplexer 5101, first end of switch 5101c are coupled to the first external signal and are connected end P5 with resistance unit 5102, and first end of the switch 5101b of multiplexer 5101, first end of switch 5101d are coupled to the second external signal with resistance unit 5103 and are connected end P6.More carefully saying, the first external signal that first end of switch 5101a passes through multitask transport module 210 with first end of switch 5101c is connected end P5 and is coupled to the first receiving terminal RXI of receiving interface TXO1, and first end of the switch 5101b of multiplexer 5101 is connected end P6 with first end of switch 5101d through the second external signal of multitask transport module 210 and is coupled to the second receiving terminal RXI of receiving interface RXI2。
It addition, second end of the switch 5101a of multiplexer 5101 and the second end switching 5101b couple the first circuit connecting end P7, and second end of the switch 5101c of multiplexer 5101 couples second circuit with second end of switch 5101d and is connected end P8.More carefully saying, the first circuit connecting end P7 that second end of switch 5101a passes through multitask transport module 210 with the second end switching 5101b couples the first reception circuit end RX1(for example, one of them reception circuit end receiving circuit interface of signal processing module 211), second end of switch 5101c and second end of switch 5101d couple the second reception circuit end TX through the first circuit connecting end P8 of multitask transport module 2102(for example, other in which receiving circuit interface of signal processing module 211 receives circuit end).
Similarly, in embodiments of the present invention, multiplexer 5101 also has a plurality of link group.More carefully saying, multiplexer 5101 has the 3rd link group and the 4th link group.3rd link group includes sequentially being connected end P5, switch 5101a, the first reception circuit end RX by the first external signal1The 5th link formed with sequentially by the second external signal be connected end P6, switch 5101d, second receive circuit end RX2The 6th link formed；4th link group includes sequentially being connected end P6, switch 5101b, the first reception circuit end RX by the second external signal1The 7th link formed with sequentially by the first external signal be connected end P5, switch 5101c, second receive circuit end TX2The 8th link formed.
Switch 5101a and switch 5101d is controlled by the 3rd control signal and selects the 3rd link group with offer multitask transport module 220, and switch 5101b and switch 5101c is controlled by the 4th control signal and selects the 4th link group with offer multitask transport module 210.In other words, multitask transport module 220 controls switching use the 3rd link group or the 4th link group through the 3rd control signal and the 4th control signal.On the other hand, multitask transport module 220 is when the cable that receiving interface RXI connects, and test signal judgement generation the 3rd control signal sent according to multitask transport module 210 or the 4th control signal according to this handoff links group, to carry out signal transmission.
In embodiments of the present invention, the first receiving terminal RXI1With the second receiving terminal RXI2Can be respectively with USB transmission end, DisplayPort transmission ends or one of them realization of SAS/SATA transmission ends.It should be noted that the first receiving terminal RXI1With the second receiving terminal RXI2Also can be the first transmitting terminal TXO corresponding to electronic installation 211With the second transmitting terminal TXO2Arrange.For example, the first transmitting terminal TXO of multitask transport module 2101With the second transmitting terminal TXO2When respectively arranging with USB transmission end and PCIe transmission ends, then the first receiving terminal RXI of multitask transport module 2201With the second receiving terminal RXI2Also must be USB transmission end and PCIe transmission ends.
In simple terms, the setting of transmitter and receiver circuit block through the multitask transport module of Fig. 5 Yu Fig. 6, there is provided high speed serial transmission system 1 in two transmission means to two (2-to-2), after i.e. completing the action of handoff links before transmission signal, carry out signal transmission again.But, though the embodiment of the present invention with two to two as explanation, but those skilled in the art should be appreciated that and three can also implement the mode of three, multi-to-multi, the present invention not with this as restriction.
It will be further appreciated that, though above-mentioned embodiment illustrates with transmitting terminal/receiving terminal and radiating circuit end/reception circuit end respectively, but have usual skill should be appreciated that in field of the present invention, also can directly using sending and receiving end or transmission circuit end as embodiment, the embodiment of the present invention not with this as restriction.
[effect of present invention possibility]
In sum, the embodiment of the present invention proposes the multitask transport module of high speed serial transmission and electronic installation are it can be avoided that tradition uses multiplexer to cause the phenomenon of signal attenuation between electronic installation and electronic installation.More carefully saying, the embodiment of the present invention utilizes after having switched transmission link and carries out the mode of signal process again, it is possible to avoids the impact of the signal attenuation that transmission signal causes through the impedance of multiplexer, and maintains the integrity of transmission signal.In simple terms, the embodiment of the present invention is effectively improved the signal attenuation of conventional high rate transmission, to reach improve bandwidth and reduce the purpose of signal consume.
It addition, task transmission module can interpolate that transmission signal handoff links more than the embodiment of the present invention, to reach the specification requirement of USB3.1type-C.It will be further appreciated that, the embodiment of the present invention is equally applicable for different transmission standard (such as USB, PCIe, DisplayPort and SAS/SATA), the signal transmission of the most specifications.
The above, the specific embodiment that only present invention is optimal, only the feature of the present invention is not limited thereto, and any is familiar with this those skilled in the art in the field of the present invention, can think easily and change or modification, all can contain the scope of the claims in following this case.
[symbol description]
1,2: high speed serial transmission system
10: multiplexer
11: radiating circuit block
12: receive circuit blocks
21,22: electronic installation
210,220: multitask transport module
211,221: signal processing module
2101,3201,4101,5101: multiplexer
2101a, 3201a, 4101a, 5101a, 2101b, 3201b, 4101b, 5101b, 4101c, 5101c, 4101d, 5101d: switch
2102,2103,3202,3203,4102,4103,5102,5103: resistance unit
TX: radiating circuit end
RX: receive circuit end
TX1: the first radiating circuit end
RX1: first receives circuit end
TX2: the second radiating circuit end
RX2: second receives circuit end
TXO: transmitting terminal
TXO1: the first transmitting terminal
TXO2: the second transmitting terminal
RXI: receiving terminal
RXI1: the first receiving terminal
RXI2: the second receiving terminal
S1: send signal
S2: receive signal
P1, P5: the first external signal connects end
P2, P6: the second external signal connects end
P3, P7: the first circuit connecting end
P4, P8: second circuit connects end
Claims (11)
1. a multitask transport module for high speed serial transmission, has at least one external signal and connects end and at least one circuit connecting end, including:
One multiplexer, in order to switch a plurality of link to carry out a signal transmission, including:
A plurality of switches, this switch each has one first end and one second end, and this first end couples this at least one external signal and connects end, and this second end is coupled to this at least one circuit connecting end；And
At least one resistance unit, is coupled to this multiplexer, and respectively this at least one resistance unit is respectively coupled to respectively this at least one external signal connection end, in order to when carrying out the transmission of this signal, eliminates this at least one external signal and connects the reflection of end one signal.
2. multitask transport module as claimed in claim 1, one first external signal during wherein this at least one external signal connects end connects end and couples one first sending and receiving end, the one second external signal connection end that this at least one external signal connects in end couples one second sending and receiving end, and one first circuit connecting end of this at least one circuit connecting end couples one first circuit end.
3. multitask transport module as claimed in claim 2, wherein one first resistance unit of this at least one resistance unit and one first end of one first switch couple this first external signal and connect end, one second resistance unit of this at least one resistance unit and one first end of a second switch couple this second external signal and connect end, and one second end of one second end of this first switch and this second switch couples this first circuit connecting end.
4. multitask transport module as claimed in claim 2, wherein this first sending and receiving end and this second sending and receiving end are a USB3.1Type-C transmission ends simultaneously.
5. multitask transport module as claimed in claim 2, wherein a second circuit connection end of this at least one circuit connecting end couples a second circuit end.
6. multitask transport module as claimed in claim 5, wherein one first end of one first switch in these a plurality of switches, one first end of one the 3rd switch in these a plurality of switches are coupled to this first external signal with one first resistance unit of this at least one resistance unit and are connected end, and one first end of the second switch in these a plurality of switches, one first end of one the 4th switch are coupled to this second external signal with one second resistance unit of this at least one resistance unit and are connected end；One second end of this first switch and one second end of this second switch couple this first circuit connecting end, and one second end of the 3rd switch couples this second circuit with one second end of the 4th switch and is connected end.
7. multitask transport module as claimed in claim 6, wherein this first switch and the 4th switch are controlled by one first control signal, and this second switch is controlled by one second control signal with the 3rd switch；Wherein this first controls signal and second controls signal with this and switch a plurality of link group in order to controlling.
8. multitask transport module as claimed in claim 7, wherein one first link group of these a plurality of link group includes that one first link formed by this first circuit end, this first switch, this first external signal connection end is connected, with by this second circuit end, the 4th switch, this second external signal, one second link that end is formed；One second link group of these a plurality of link group includes that one the 3rd link formed by this first circuit end, this second switch, this second external signal connection end is connected, with by this second circuit end, the 3rd switch, this first external signal, one the 4th link that end is formed.
9. multitask transport module as claimed in claim 5, wherein this first sending and receiving end and this second sending and receiving end be respectively a USB transmission end, a PCIe transmission ends, a DisplayPort transmission ends and a SAS/SATA transmission ends one of them.
10. multitask transport module as claimed in claim 1, wherein the resistance value of this at least one resistance unit is 50 ohm.
The electronic installation of 11. 1 kinds of high speed serial transmission, including:
One multitask transport module, has at least one circuit connecting end and is connected end with at least one external signal, including:
One multiplexer, in order to switch a plurality of link to carry out a signal transmission, including:
A plurality of switches, this switch each has one first end and one second end, and this first end couples this at least one external signal and connects end, and this second end is coupled to this at least one circuit connecting end；And
At least one resistance unit, is coupled to this multiplexer, and respectively this at least one resistance unit is respectively coupled to respectively this at least one external signal connection end, in order to when carrying out the transmission of this signal, eliminates this at least one external signal and connects a signal reflection of end；And
One signal processing module, is coupled to this multitask transport module, in order to produce a transmission signal when carrying out the transmission of this signal or to process a reception signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510002928.8A CN105824774A (en) | 2015-01-05 | 2015-01-05 | High speed serial transmission multitask transmission module and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510002928.8A CN105824774A (en) | 2015-01-05 | 2015-01-05 | High speed serial transmission multitask transmission module and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105824774A true CN105824774A (en) | 2016-08-03 |
Family
ID=56513563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510002928.8A Pending CN105824774A (en) | 2015-01-05 | 2015-01-05 | High speed serial transmission multitask transmission module and electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105824774A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1264236A (en) * | 1999-02-14 | 2000-08-23 | 友讯科技股份有限公司 | Method and circuit for detecting and switching load signal on twisted wire pairs of network |
| CN101373966A (en) * | 2007-08-20 | 2009-02-25 | 恩益禧电子股份有限公司 | Differential transmitter, differential receiver, signal transmitter, and signal transmitting system |
| CN101968777A (en) * | 2009-07-28 | 2011-02-09 | 宏正自动科技股份有限公司 | Computer signalling system, keyboard-image-mouse extension system and data transmission method |
| CN102004590A (en) * | 2009-09-01 | 2011-04-06 | 义隆电子股份有限公司 | Front-end signal detector and method for improving noise resistance of capacitance type touch pad |
-
2015
- 2015-01-05 CN CN201510002928.8A patent/CN105824774A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1264236A (en) * | 1999-02-14 | 2000-08-23 | 友讯科技股份有限公司 | Method and circuit for detecting and switching load signal on twisted wire pairs of network |
| CN101373966A (en) * | 2007-08-20 | 2009-02-25 | 恩益禧电子股份有限公司 | Differential transmitter, differential receiver, signal transmitter, and signal transmitting system |
| CN101968777A (en) * | 2009-07-28 | 2011-02-09 | 宏正自动科技股份有限公司 | Computer signalling system, keyboard-image-mouse extension system and data transmission method |
| CN102004590A (en) * | 2009-09-01 | 2011-04-06 | 义隆电子股份有限公司 | Front-end signal detector and method for improving noise resistance of capacitance type touch pad |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0679275B1 (en) | A communication node with a first bus configuration for arbitration and a second bus configuration for data transfer | |
| US10909061B2 (en) | Method, apparatus and system for changing to which remote device a local device is in communication via a communication medium through use of interruption of the communication medium | |
| KR101338848B1 (en) | System and method for making busses limited to a linear topology extensible to other topologies | |
| WO1995019596A1 (en) | Addressable communication port expander | |
| CN103176940A (en) | Asymmetrical universal serial bus communications | |
| CN102591826A (en) | Method and system for detecting and asserting bus speed condition in a USB isolating device | |
| US9678919B2 (en) | Collision detection in EIA-485 bus systems | |
| US10585834B2 (en) | I2C device extender for inter-board communication over a single-channel bidirectional link | |
| JP2010028670A5 (en) | ||
| CN104363433A (en) | Multi-channel optical transceiver without external distributor | |
| US6744810B1 (en) | Signal repeater for voltage intolerant components used in a serial data line | |
| CN110113209B (en) | MIPI (Mobile industry processor interface) protocol-based inter-device communication method and equipment topological structure | |
| CN105824774A (en) | High speed serial transmission multitask transmission module and electronic device | |
| US7546518B2 (en) | Received data compensating device | |
| CN101741667A (en) | Logical adaptation method, system and logical adaptation interface | |
| CN211124034U (en) | Multi-path acquisition card and server with same | |
| CN106681952A (en) | Backboard and signal transmission method and system | |
| CN110309090B (en) | A kind of interface unit | |
| US20210303496A1 (en) | Actuation of data transmission lanes between states | |
| CN111638804A (en) | Wireless keyboard mouse device capable of switching and controlling multiple computers | |
| US10666465B1 (en) | Adaptive selection of isolation ground for differential interface | |
| CN204145666U (en) | A kind of multi-path light terminal without the need to external distributor | |
| CN103765799A (en) | Electrical idle state handling method and peripheral component interconnect express equipment | |
| CN210515372U (en) | High-speed image processing circuit box | |
| CN109343387B (en) | Data communication method, device, equipment and air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160803 |