CN102768649B - There is the electronic installation of the circuit framework of shared bus - Google Patents
There is the electronic installation of the circuit framework of shared bus Download PDFInfo
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- CN102768649B CN102768649B CN201110114653.9A CN201110114653A CN102768649B CN 102768649 B CN102768649 B CN 102768649B CN 201110114653 A CN201110114653 A CN 201110114653A CN 102768649 B CN102768649 B CN 102768649B
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Abstract
Have the electronic installation of the circuit framework of shared bus, an embodiment comprises a connector, a data bus, the one first group of switchgear comprising one first and one second switch device and one first control module.One end of data bus is connected to connector.First switchgear, its output port is connected to the other end of data bus, and optionally allow one of one first and one secondary signal to pass through, wherein the transmission frequency of the first signal equals in fact the frequency range of the first switchgear.Second switch device, its output port is connected to data bus, optionally allows one the 3rd signal to pass through.First control module controls this first group of switchgear optionally to allow one of one first group of signal by data bus and connector, and wherein this first group of signal comprises first, second, and third signal.
Description
Technical field
The present invention relates to a kind of electronic installation, and in particular to sharing the circuit framework of a bus in a kind of electronic installation.
Background technology
As the mancarried device of smart mobile phone, multimedia player, personal digital assistant, digital camera, due to easy to use, the frequent belongings of user are become at present.In order to strengthen mancarried device concatenation ability (connectivity) to extend other functions, industry proposes multiple different bus, mancarried device can be applied with other further and combines.Among numerous standards, mobile high image quality links (Mobile High-Definition Link, MHL) be one can with high-quality multimedia interface (high-definition multimedia interface, HDMI) compatible new standard, Jie determines the video of multimedia device and the form of audio frequency output, allows mobile device can connect hd-tv or other compatible display device.
MHL adopts the most current connected mode at present, as based on the connector of USB standard and bus, smart mobile phone, multimedia player etc. can be allowed to export video and the audio frequency of high-quality.
But in order to meet the specification of the high-speed bus as MHL and so on, hand-held device needs to provide signal at a high speed, how internal bus must in the face of maintaining the problem of signal quality.
Summary of the invention
The invention provides the embodiment about the circuit framework sharing a bus in a kind of electronic installation, multi-signal can be allowed to share same bus and connector, and can signal quality be maintained.
According to an aspect of the present invention, a kind of electronic installation is proposed.This electronic installation, comprises a connector, a data bus, one first group of switchgear and one first control module.One end of data bus is connected to connector.First group of switchgear, comprises one first switchgear and a second switch device.One output port of the first switchgear is connected to the other end of data bus, and the first switchgear optionally allows one in one first signal and a secondary signal to pass through, and wherein the transmission frequency of the first signal equals in fact the frequency range of the first switchgear.One output port of second switch device is connected to data bus, and second switch device optionally allows one the 3rd signal to pass through.First control module controls this first group of switchgear optionally to allow one of one first group of signal by data bus and connector, and wherein this first group of signal comprises the first signal, secondary signal and the 3rd signal.
According to a further aspect in the invention, propose a kind of electronic installation, comprise a connector, a data bus, one group of switchgear and a control module.One end of data bus is connected to connector, and the other end of data bus couples one the 3rd signal.This organizes switchgear, comprises one first switchgear and a second switch device.One output port of the first switchgear is connected to data bus, and the first switchgear optionally allows one first signal to pass through, and wherein the transmission frequency of the first signal equals in fact the frequency range of the first switchgear.One output port of second switch device is connected to data bus, and second switch device optionally allows a secondary signal to pass through.Control module controls this group switchgear optionally to allow one of one group of signal by data bus and connector, and wherein this group signal comprises the first signal, secondary signal and the 3rd signal.
According to a further aspect in the invention, propose a kind of electronic installation, comprise a connector, a data bus, one group of switchgear and a control module.One end of data bus is connected to connector.This organizes switchgear, comprises one first switchgear and a second switch device.One output port of the first switchgear is connected to data bus.First switchgear has a first input end mouth and one second input port, and first input end mouth and the second input port connect one first signal and a secondary signal, and wherein the transmission frequency of the first signal equals in fact the frequency range of this first switchgear.One output port of second switch device is connected to the second input port of the first switchgear, and an input port of second switch device is connected to one the 3rd signal.Control module controls this group switchgear optionally to allow one of one group of signal by data bus and connector, and wherein this group signal comprises the first signal, secondary signal and the 3rd signal.
In order to have better understanding to above-mentioned and other aspect of the present invention, different embodiment cited below particularly, and coordinate accompanying drawing, be described in detail below:
Accompanying drawing explanation
Fig. 1 illustrates frequency and the gain relationship figure of the switching device shifter of a high frequency.
Fig. 2 A illustrates the schematic diagram of an embodiment of the circuit framework sharing a bus in an electronic installation.
Fig. 2 B illustrates the process flow diagram of an embodiment of the method sharing this bus in the electronic installation of Fig. 2 A.
Fig. 3 A illustrates the schematic diagram of another embodiment of the circuit framework sharing a bus in an electronic installation, and wherein this electronic installation uses dual processor.
Fig. 3 B illustrates the process flow diagram of an embodiment of the method sharing this bus in the electronic installation of Fig. 3 A.
Fig. 4 A illustrates the schematic diagram of the another embodiment of the circuit framework sharing a bus in an electronic installation.
Fig. 4 B illustrates the process flow diagram of an embodiment of the method sharing this bus in the electronic installation of Fig. 4 A.
Fig. 5 A illustrates the schematic diagram of the another embodiment of the circuit framework sharing a bus in an electronic installation.
Fig. 5 B illustrates the process flow diagram of an embodiment of the method sharing this bus in the electronic installation of Fig. 5 A.
[main element symbol description]
20,30,40: electronic installation
100: response curve
201: data bus
205: connector
210,220,320,410,420: switchgear
230,330,530: the first control modules
340: the second control modules 430: control module
IN1, IN2: input port
OUT1, OUT2, OUT3: output port
CL1, CL2, CL3: control end
S1: the first signal
S2: secondary signal
S3: the three signal
E1: the first expands signal
S200, S220-S233: step
S300, S320-S333, S340: step
S400, S420-S433: step
S533: step
Embodiment
The embodiment of the circuit framework sharing a bus in electronic installation is below provided, multi-signal can be allowed to share same bus and connector, and can signal quality be maintained.
Below illustrate and can be compatible to the data bus of two kinds of high speed data bus standards for one, such as be compatible to standard (the Universal Serial Bus based on USB (universal serial bus), USB) and mobile high image quality to link the data bus of (Mobile High-Definition Link, MHL) be example.Circuit framework in embodiment allows at least three kinds of signals to share same bus and connector.In certain embodiments, connector is such as the connector meeting USB standard, or based on the connector of USB standard, as micro-USB or mini-USB, or combines the connector of the connecting line based on USB standard and other self-definings.
In certain embodiments, the larger switchgear of frequency range is used optionally to allow passing through of high speed signal, the switchgear of to be such as wideband be 480MHz, 1GHz or 1.1GHz.Such as Fig. 1 illustrates the gain of the switching device shifter switchgear of 1GHz (be such as wideband be) of a high frequency and the response curve 100 of the relation of frequency, and wherein transverse axis frequency represents with logarithmic scale (log scale).In order to allow by the high speed signal holding signal quality of this switchgear, for next circuit-level, in one embodiment, for the high speed signal of 1Ghz, its signal attenuation is about in fact or is less than-3dB.
Fig. 2 A illustrates the schematic diagram of an embodiment of the circuit framework sharing a bus in an electronic installation.In fig. 2, an electronic installation 20 comprises a data bus 201, a connector 205,1 first group of switchgear and one first control module.One end of data bus 201 is connected to connector 205.First group of switchgear, comprises one first switchgear 210 and a second switch device 220.One output port OUT1 of the first switchgear 210 is connected to the other end of this data bus.First switchgear 210 optionally allows one in an one first signal S1 and secondary signal S2 to be passed through.And the transmission frequency of the first signal S1 equals in fact the frequency range of the first switchgear 210; This represents: when the first signal S1 is by the first switchgear 210, its signal attenuation is about in fact or is less than such as-3dB, or within the scope that allows of the specification of other first signals S1.One output port OUT2 of second switch device 220 is connected to data bus 201, and second switch device 220 optionally allows one the 3rd signal S3 to pass through.First control module 230, control first group of switchgear optionally to allow one of one first group of signal by being able to by data bus 201 and connector 205 with the signal allowing this pass through, wherein first group of signal comprises the first signal S1, secondary signal S2 and the 3rd signal S3.And switchgear all has control end, as control end CL1 and CL2, other circuit are controlled by exporting control signal.
First control module 230 control first group of switchgear with make in the first signal S1 and secondary signal S2 one only by the first switchgear 210 with by bus 201 and connector 205.
Because the transmission frequency of the first signal S1 equals in fact the frequency range of the first switchgear 210, therefore above-mentioned framework can guarantee that the attenuation degree of the first signal S1 is can in the scope of normal running.Such as, the first signal S1 exports from its signal source (not illustrating), only by the first switchgear 210 with by bus 201 and connector 205, not by other switches, thus attenuation degree about-3dB or within.So, the first signal S1 signal quality can keep.Such as, otherwise if by two or more high frequency switch device, attenuation degree probably exceeds and in the scope of normal running, can be greater than-3dB.Moreover for the design of electronic installation 20, arriving between connector 205 at the first switchgear 210 of above-described embodiment, can use comparatively simple circuit structure and need not re-use other switchgears.
In certain embodiments, the circuit structure of above-mentioned electronic installation 20, can allow multiple Signal share same bus of different rates signal and connector, and can maintain signal quality.In one embodiment, the first signal S1 represents the signal that a transmission frequency equals in fact the frequency range of the first switchgear 210, such as, be to move high image quality to link (MHL) signal, or other videos or sound signal; And secondary signal S2 belongs to signal at a high speed, such as with the first signal S1, there is identical or that speed is less high speed signal in fact, such as one based on standard (the Universal Serial Bus of USB (universal serial bus), USB) signal, as met USB 1.0, USB 1.1, USB 2.0, USB 3.0 or other signals based on USB.And in another embodiment, the 3rd signal S3 also can represent the sound signal of a numeral or simulation or the signal of a universal asynchronous receiver transmitter (Universal asynchronous receiver/transmitter, UART).In other embodiments, the first signal S1 also can represent one based on the signal of the standard of USB (universal serial bus).
Fig. 2 B illustrates the process flow diagram of an embodiment of the method sharing this bus in the electronic installation of Fig. 2 A.As shown in step S200, receive an order.Be such as system program performed by electronic installation 20 or application program or firmware receive an order being set by the user or being sent as firmware by said procedure or other parts of electronic installation.Step S220 then determines which function this order representative uses.If this function is with in above-mentioned first group of signal relevant, then this relevant signal is made to use bus 201.Such as, if this order represents the relevant function of use first signal S1, then perform step S231, make the first switchgear 210 make the first signal S1 pass through and forbid second switch device 220.If the function that this order representative uses secondary signal S2 relevant, then perform step S232, make the first switchgear 210 secondary signal S2 be passed through and forbid second switch device 220.If this order represents the relevant function of use the 3rd signal S3, then perform step S233, enable second switch device 220 to make the 3rd signal S3 pass through and to forbid the first switchgear 210.
For the method for above-mentioned Fig. 2 B, be such as receive an order by a processing unit of electronic installation 20 (as central processing unit, microcontroller, digital signal processor), and control the first control module 230 and send control signal to control first group of switchgear according to step S231 to S233.In another embodiment, the first control module 230 performs the method for above-mentioned Fig. 2 B.In one embodiment, the first control module 230 can be a processing unit of electronic installation 20.And realize the mode of Fig. 2 A or Fig. 2 B, not as limit.
Fig. 3 A illustrates the schematic diagram of another embodiment of the circuit framework sharing a bus in an electronic installation, and wherein this electronic installation uses dual processor.Electronic installation 30 representated by Fig. 3 A is with the difference of the electronic installation 20 of Fig. 2 A: electronic installation 30 also comprises one first and expands switchgear 320 and one second control module 340.One output port OUT3 of the first expansion switchgear 320, is coupled to the input port (as IN1 or IN2) in order to receive a signal (such as secondary signal S2) of the first switchgear 210.First expands switchgear 320 optionally allows one first expansion signal E1 to pass through.Second control module 340, controls at least this first expansion switchgear 320 and passes through optionally to allow the first expansion signal E1.And first expands switchgear 320 and put and have control end, as control end CL3, other circuit are controlled by exporting control signal.
In the example of Fig. 3 A is executed, the first control module 330 and the second control module 340 also control above-mentioned first group of switchgear and first and expand switchgear 320 optionally to allow the first expansion signal E1 by the first expansion switchgear 320.
Use at least two processor by this electronic installation 30, as dual core processors or dual processor, therefore electronic installation 30 accordingly, further comprises the first expansion switchgear 320 and the second control module 340.In one embodiment, the first expansion signal E1 makes two processors do inner communication.
Therefore, Fig. 3 B illustrates the process flow diagram of an embodiment of the method sharing this bus in the electronic installation of Fig. 3 A.As shown in step S300, receive an order.Be such as system program performed by electronic installation 30 or application program or firmware receive an order being set by the user or being sent as firmware by said procedure or other parts of electronic installation.Step S320 then determines which function this order representative uses.If this order represents the relevant function of use first signal S1, then perform step S331, make the first switchgear 210 that first signal S1 is passed through and forbid second switch device 220 and first and expand switchgear 320.If the function that this order representative uses secondary signal S2 relevant, then perform step S332, make the first switchgear 210 that secondary signal S2 is passed through and forbid second switch device 220 and first and expand switchgear 320.If this order represents the relevant function of use the 3rd signal S3, then perform step S333, enable second switch device 220 and expand switchgear 320 to make the 3rd signal S3 pass through and to forbid the first switchgear 210 and first.If this order representative uses secondary signal S2 and first to expand the relevant function of signal E1, then perform step S340, enable (be referred to as activation not only) first and expand switchgear 320 and forbid (but also being referred to as forbidden energy) first switchgear 210 and second switch device 220.
So, in one embodiment, the circuit framework of electronic installation 30 can be used for multiprocessor to expand by first signal E1 is used as to link up.When the first expansion signal E1 is allowed through the first expansion switchgear 320, the first control module 330 and the second control module 340, controls first and expands switchgear 320 conducting, and controls above-mentioned first group of switchgear forbidding.In one embodiment, secondary signal S2 and first expands signal E1 and all represents one based on the signal of the standard of USB (universal serial bus), as met USB 1.0, USB 1.1, USB 2.0, USB 3.0 or other signals based on USB.In other embodiments, secondary signal S2 and first expand signal E1 also can for other allow the multiprocessor of electronic installation 30 be used as to link up signal.
Fig. 4 A illustrates the schematic diagram of the another embodiment of the circuit framework sharing a bus in an electronic installation.Electronic installation 40 comprises: a data bus 201, a connector 205, one group of switchgear and a control module 430.One end of data bus 201 is connected to connector 205, and the other end of data bus 201 couples one the 3rd signal S3.This organizes switchgear, comprises one first switchgear 410 and a second switch device 420.One output port OUT1 of the first switchgear 410 is connected to data bus 201, and the first switchgear 410 optionally allows one first signal S1 to pass through, and wherein the transmission frequency of the first signal S1 equals in fact the frequency range of this first switchgear.One output port OUT2 of second switch device 420 is connected to data bus 201, and second switch device 420 optionally allows a secondary signal S2 to pass through.Control module 430, control this group switchgear to pass through optionally to allow one of one group of signal, the signal passed through to allow this is able to by data bus 201 and connector 205, and wherein this group signal comprises the first signal S1, secondary signal S2 and the 3rd signal S3.
In one embodiment, control module 430 control this group switchgear with make the first signal S1 only by the first switchgear 410 with by bus 201 and connector 205.
In one embodiment, when control module 430 controls this group switchgear to allow one of first signal S1 and secondary signal S2 by being able to by data bus 201 and connector 205 with the signal allowing this pass through, 3rd signal S3 is in a high impedance status, to forbid the 3rd signal S3.
Because the transmission frequency of the first signal S1 equals in fact the frequency range of the first switchgear 410, so therefore above-mentioned framework can guarantee that the attenuation degree of the first signal S1 is can in the scope of normal running.Such as, the first signal S1 exports from its signal source (not illustrating), only by the first switchgear 410 with by bus 201 and connector 205, not by other switches, thus attenuation degree about-3dB or within.So, the first signal S1 signal quality can keep.For the design of electronic installation 40, at the output port OUT1 of the first switchgear 410 between connector 205, comparatively simple circuit structure can be used and other switchgear circuit need not be re-used.
In certain embodiments, the circuit structure of above-mentioned electronic installation 40, can allow multi-signal share same bus and connector, and can maintain signal quality.In one embodiment, the first signal S1 represents the signal that a transmission frequency equals in fact the frequency range of the first switchgear 410, such as, be a MHL signal, or other video-audio signals; And the 3rd signal S3 belongs to signal at a high speed, such as with the first signal S1, there is identical or that speed is less high speed signal in fact, such as one based on the signal of USB standard, as met USB 1.0, USB 1.1, USB 2.0, USB 3.0 or other signals based on USB.And in another embodiment, secondary signal S2 also can represent the sound signal of a numeral or simulation or a UART signal.In other embodiments, the first signal S1 also can represent one based on the signal of USB standard.
Fig. 4 B illustrates the process flow diagram of an embodiment of the method sharing this bus in the electronic installation of Fig. 4 A.As shown in step S400, receive an order.Be such as system program performed by electronic installation 40 or application program or firmware receive an order being set by the user or being sent as firmware by said procedure or other parts of electronic installation.Step S420 then determines which function this order representative uses.If this order represents the relevant function of use first signal S1, then perform step S431, enable the first switchgear 410 and forbid second switch device 420 and the 3rd signal S3.If the function that this order representative uses secondary signal S2 relevant, then perform step S432, enable second switch device 420 and forbid the first switchgear 410 and the 3rd signal S3.If this order represents the relevant function of use the 3rd signal S3, then perform step S433, forbid the first switchgear 410 and second switch device 420.
For the method for above-mentioned Fig. 4 B, be such as receive an order by a processing unit of electronic installation 40 (as central processing unit, microcontroller, digital signal processor), and control this control module 430 to send control signal to control this group switchgear according to step S431 to S433.In another embodiment, control module 430 performs the method for above-mentioned Fig. 4 B.In one embodiment, control module 430 can be a processing unit of electronic installation 40.And realize the mode of 4A or 4B figure, not as limit.
As in another embodiment according to Fig. 4 A, the first switchgear 410 can be exchanged with the output port of second switch device 420 and the link position of bus 201.
Besides the above described embodiments, Fig. 5 A illustrates the schematic diagram of another embodiment of the circuit framework sharing a bus in an electronic installation.The electronic installation 50 of Fig. 5 A is identical with the element included by the electronic installation 20 of Fig. 2 A, both difference is: in fig. 5, the output port OUT2 of second switch device 220 is couple to one (as IN1 or IN2) in the input port of the first switchgear 210, such as, be couple to input port IN2.
According in an embodiment of Fig. 5 A, the first control module 530 control this group switchgear (such as the first switchgear 210 and second switch close and put 220) with make the first signal S1 only by the first switchgear 210 with by bus 201 and connector 205.
In an embodiment according to Fig. 5 A, first control module 530 control this group switchgear with allow the 3rd signal S3 by second switch device 220 and the first switchgear 210 and by data bus 201 and connector 205 time, secondary signal S2 is in a high impedance status, to forbid secondary signal S2.In one embodiment, first control module 530 can be in the case, such as control or indicate the signal source (not illustrating) of secondary signal S2 as the controller of secondary signal, making the output port of the signal source of secondary signal S2 (not illustrating) be in a high impedance status.
Because the transmission frequency of the first signal S1 equals in fact the frequency range of the first switchgear 410, so therefore above-mentioned framework can guarantee that the attenuation degree of the first signal S1 is can in the scope of normal running.Such as, the first signal S1 exports from its signal source (not illustrating), only by the first switchgear 410 with by bus 201 and connector 205, not by other switches, thus attenuation degree about-3dB or within.So, the first signal S1 signal quality can keep.In the embodiment of Fig. 5 A, under the different situations of shared signal, between the output port OUT1 of the first switchgear 210 to connector 205, bus 201 all remains simple circuit structure, contributes to maintaining the quality by the signal of bus 201.
Fig. 5 B illustrates the process flow diagram of an embodiment of the method sharing this bus in the electronic installation of Fig. 5 A.The method of Fig. 5 B is similar to the method for Fig. 5 A, and both difference is: in figure 5b, if step S220 judges that this order represents the relevant function of use the 3rd signal S3, then performs step S533.In step S533, forbidding secondary signal S2, enables second switch device 220 and passes through to make the 3rd signal S3, and make the first switchgear 210 that the 3rd signal S3 is passed through.
For the method for above-mentioned Fig. 5 B, be such as receive an order by a processing unit of electronic installation 50 (as central processing unit, microcontroller, digital signal processor), and control the first control module 530 to send control signal to control first group of switchgear according to step S231 to S533.In another embodiment, the first control module 530 performs the method for above-mentioned Fig. 5 B.In one embodiment, the first control module 530 can be a processing unit of electronic installation 50.And realize the mode of 5A or 5B figure, not as limit, and the mode that can refer to other embodiments above-mentioned realizes.
In above-described embodiment and accompanying drawing, the mode that have employed simplification illustrates that multiple signal is by the annexation of the mode of switchgear and wherein bus and connector.Such as, in accompanying drawing, bus 201 illustrates the transmission line of differential wave with two connecting lines, and implementation optionally can increase other signal wires newly.Again, above-mentioned with frequency range be 480MHz, 1GHz or 1.1GHz switchgear citing, but, not as limit.Along with the development of various standard and demand, the most high energy of a pattern of such as USB 3.0 reaches the speed of about 5Gbit/s, and the pixel data of MHL can reach the speed of about 3Gbit/s.Those skilled in the art, can based on the framework of this schematic diagram and embodiment, on the signal being applied to various reality and gauge tap device, when realizing each embodiment, does increase or reduce or combine to various signal line.In addition, those skilled in the art also based on above-described embodiment, can be embodied as various different electronic installation, as smart mobile phone, lithographic plate computing machine, multimedia player, personal digital assistant, digital camera and other mancarried device.Therefore, above-described embodiment also can contain various possible change and implementation, is not limited with above-mentioned context and accompanying drawing.
The embodiment of circuit framework sharing a bus in electronic installation is more than provided, can allows multiple Signal share same bus and connector, and can signal quality be maintained.
In sum, although the present invention is with embodiment openly as above, so itself and be not used to limit the present invention.Those skilled in the art without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is when being as the criterion depending on the appended claims person of defining.
Claims (17)
1. an electronic installation, comprising:
A connector;
One data bus, one end of this data bus is connected to this connector;
One first group of switchgear, comprising:
One first switchgear, one output port of this first switchgear is connected to the other end of this data bus, this first switchgear optionally allows one in one first signal and a secondary signal to pass through, and wherein the transmission frequency of this first signal equals in fact the frequency range of this first switchgear; And
One second switch device, an output port of this second switch device is connected to this data bus, and this second switch device optionally allows one the 3rd signal to pass through; And
One first control module, control this first group of switchgear optionally to allow one of one first group of signal by this data bus and this connector, wherein this first group of signal comprises this first signal, secondary signal and the 3rd signal,
Wherein this first control module control this first group of switchgear with make in this first signal and this secondary signal one only by this first switchgear with by this data bus and this connector.
2. electronic installation as claimed in claim 1, wherein this electronic installation also comprises:
One first expands switchgear, and an output port of this first expansion switchgear, is coupled to the input port in order to receive this secondary signal of this first switchgear, and this first expansion switchgear optionally allows one first expansion signal to pass through; And
One second control module, controls at least this first expansion switchgear and passes through optionally to allow this first expansion signal;
Wherein this first control module and this second control module also control this first group of switchgear with this first expansion switchgear optionally to allow this first expansion signal by this first expansion switchgear.
3. electronic installation as claimed in claim 2, wherein when this first expansion signal allows by this first expansion switchgear, this first control module and this second control module, control this first expansion switching means into conduction, and control this first group of switchgear forbidding.
4. electronic installation as claimed in claim 3, wherein this secondary signal and this first expand that signal is each all represents one based on the signal of the standard of USB (universal serial bus).
5. the electronic installation as described in arbitrary in Claims 1-4, wherein this first signal represents one and moves the signal that high image quality links.
6. electronic installation as claimed in claim 5, wherein this secondary signal represents one based on the signal of the standard of USB (universal serial bus).
7. electronic installation as claimed in claim 6, wherein the 3rd signal represents the signal of a sound signal or a universal asynchronous receiver transmitter.
8. the electronic installation as described in arbitrary in Claims 1-4, wherein this first signal represents one based on the signal of the standard of USB (universal serial bus).
9. an electronic installation, comprising:
A connector;
One data bus, one end of this data bus is connected to this connector, and the other end of this data bus couples one the 3rd signal;
One group of switchgear, comprising:
One first switchgear, an output port of this first switchgear is connected to this data bus, and optionally allow one first signal to pass through, wherein the transmission frequency of this first signal equals in fact the frequency range of this first switchgear; And
One second switch device, an output port of this second switch device is connected to this data bus, optionally allows a secondary signal to pass through; And
One control module, control this group switchgear optionally to allow one of one group of signal by this data bus and this connector, wherein this group signal comprises this first signal, this secondary signal and the 3rd signal,
Wherein this control module control this group switchgear with make this first signal only by this first switchgear with by this data bus and this connector,
When wherein this control module controls this group switchgear to allow one of this first signal and this secondary signal by being able to the signal allowing this pass through by this data bus and this connector, the 3rd signal is in a high impedance status.
10. electronic installation as claimed in claim 9, wherein this first signal represents the signal that moves high image quality link.
11. electronic installations as claimed in claim 10, wherein the 3rd signal represents one based on the signal of the standard of USB (universal serial bus).
12. electronic installations as claimed in claim 10, wherein this secondary signal represents the signal of a sound signal or a universal asynchronous receiver transmitter.
13. 1 kinds of electronic installations, comprising:
A connector;
One data bus, one end of this data bus is connected to this connector;
One group of switchgear, comprising:
One first switchgear, one output port of this first switchgear is connected to this data bus, this first switchgear has a first input end mouth and one second input port, this first input end mouth and this second input port connect one first signal and a secondary signal, and wherein the transmission frequency of this first signal equals in fact the frequency range of this first switchgear; And
One second switch device, an output port of this second switch device is connected to this second input port of this first switchgear, and an input port of this second switch device is connected to one the 3rd signal; And
One control module, control this group switchgear optionally to allow one of one group of signal by this data bus and this connector, wherein this group signal comprises this first signal, this secondary signal and the 3rd signal,
Wherein this control module control this group switchgear with make this first signal only by this first switchgear with by this data bus and this connector.
14. electronic installations as claimed in claim 13, wherein this control module control this group switchgear with allow the 3rd signal by with by this data bus and this connector time, this secondary signal is in a high impedance status.
15. electronic installations as described in claim 13 or 14, wherein this first signal represents one and moves the signal that high image quality links.
16. electronic installations as claimed in claim 15, wherein this secondary signal represents one based on the signal of the standard of USB (universal serial bus).
17. electronic installations as claimed in claim 15, wherein the 3rd signal represents the signal of a sound signal or a universal asynchronous receiver transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110114653.9A CN102768649B (en) | 2011-05-05 | 2011-05-05 | There is the electronic installation of the circuit framework of shared bus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110114653.9A CN102768649B (en) | 2011-05-05 | 2011-05-05 | There is the electronic installation of the circuit framework of shared bus |
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| Publication Number | Publication Date |
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| CN102768649A CN102768649A (en) | 2012-11-07 |
| CN102768649B true CN102768649B (en) | 2015-09-09 |
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| CN201110114653.9A Expired - Fee Related CN102768649B (en) | 2011-05-05 | 2011-05-05 | There is the electronic installation of the circuit framework of shared bus |
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| WO1991014989A1 (en) * | 1990-03-19 | 1991-10-03 | Thomas Austin Gafford | A repeater/switch for distributed arbitration digital data buses |
| CN2657308Y (en) * | 2003-10-17 | 2004-11-17 | 福兴达科技实业（深圳）有限公司 | Miniature network digital code walkman |
| CN201000624Y (en) * | 2006-10-31 | 2008-01-02 | 曙光信息产业(北京)有限公司 | USB sharing media system for blade server |
| CN101937414A (en) * | 2010-08-26 | 2011-01-05 | 惠州Tcl移动通信有限公司 | Method and device of sharing minitype USB interface for UART (Universal Asynchronous Receive/Transmitter) and USB (Universal Serial Bus) |
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Patent Citations (4)
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|---|---|---|---|---|
| WO1991014989A1 (en) * | 1990-03-19 | 1991-10-03 | Thomas Austin Gafford | A repeater/switch for distributed arbitration digital data buses |
| CN2657308Y (en) * | 2003-10-17 | 2004-11-17 | 福兴达科技实业（深圳）有限公司 | Miniature network digital code walkman |
| CN201000624Y (en) * | 2006-10-31 | 2008-01-02 | 曙光信息产业(北京)有限公司 | USB sharing media system for blade server |
| CN101937414A (en) * | 2010-08-26 | 2011-01-05 | 惠州Tcl移动通信有限公司 | Method and device of sharing minitype USB interface for UART (Universal Asynchronous Receive/Transmitter) and USB (Universal Serial Bus) |
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| Title |
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| 手机音频接口将被USB 统一;徐俊毅;《电子与电脑》;20061207(第11期);55 * |
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| CN102768649A (en) | 2012-11-07 |
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