CN218217359U - Data bidirectional transmission circuit, device and system - Google Patents
Data bidirectional transmission circuit, device and system Download PDFInfo
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- CN218217359U CN218217359U CN202222492713.7U CN202222492713U CN218217359U CN 218217359 U CN218217359 U CN 218217359U CN 202222492713 U CN202222492713 U CN 202222492713U CN 218217359 U CN218217359 U CN 218217359U
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Abstract
A data bidirectional transmission circuit, a device and a system are provided, wherein the data bidirectional transmission circuit comprises: the two bidirectional data terminals of each first bidirectional transmission chip are respectively coupled with an electronic device; n +1 communicators, each of the communicators including a first end for bidirectional data transfer, a second end and a third end, the communicators for communicating the first end to at least one of the second and third ends; a gating module coupled with the electronic devices for connecting at least one of the electronic devices to an external device; and the main control chip is coupled with the gating module and the electronic equipment and is used for controlling the gating module and receiving the display signal of the electronic equipment. According to the method, the two different electronic devices are connected through the bidirectional transmission chip, so that bidirectional data transmission between the electronic devices is realized, the operation is convenient and fast, and the working efficiency is improved; moreover, the electronic equipment can be expanded.
Description
Technical Field
The application belongs to the field of data transmission, and particularly relates to a data bidirectional transmission circuit, device and system.
Background
Along with the demand of high-efficient official working, more and more use scenes of two host computers, even many host computers appear, when needing data to transmit each other between many host computers, the tradition method uses USB flash disk class equipment to carry out data transfer as the intermediary, need plug the USB flash disk many times, and if under the condition of only a display, still need be connected the back with many host computers respectively with the display, just can realize data transmission, and the process is very loaded down with trivial details, and it is very inconvenient to use.
SUMMERY OF THE UTILITY MODEL
The application aims to provide a data bidirectional transmission circuit, a data bidirectional transmission device and a data bidirectional transmission system, and aims to solve the problem that operation is too complex when data are transmitted among multiple host devices.
A first aspect of an embodiment of the present application provides a data bidirectional transmission circuit, including:
each first bidirectional transmission chip comprises two bidirectional data ends, and the two bidirectional data ends are respectively coupled with an electronic device;
n +1 connecting pieces, each connecting piece comprises a first end, a second end and a third end for bidirectional data transmission, the first end of each connecting piece is coupled with a data transmission end of an electronic device, the second ends of the 1 st and the n +1 th connecting pieces are respectively coupled with one data end of the 1 st and the nth first bidirectional transmission chips, one second end of the 2 nd to the nth connecting pieces is respectively coupled with one data end of the 1 st to the n-1 st first bidirectional transmission chips, and the other second end of the 2 nd to the nth connecting pieces is respectively coupled with the other data end of the 2 nd to the nth first bidirectional transmission chips; the communication piece is used for communicating the first end to at least one of the second end and the third end; wherein n is a positive integer greater than or equal to 1;
a gating module coupled with the n +1 electronic devices for connecting at least one of the n +1 electronic devices to an external device.
The master control chip is coupled with the gating module and each electronic device and is used for controlling the gating module and receiving display signals of the electronic devices.
In an optional embodiment, the communication component is an analog switch, and the analog switch is further coupled to the main control chip.
In an alternative embodiment, the communication member is a first multi-port transponder.
In an optional embodiment, the data bi-directional transmission circuit further comprises a second multi-port repeater coupled between the gating module and the external device.
In an optional embodiment, if n =2, the data bidirectional transmission circuit further includes: a second bidirectional transmitting chip coupled to the 1 st and 3 rd vias, respectively.
In an alternative embodiment, if n =2, each of the 1 st via and the 3 rd via further includes a fourth end, and the fourth end of the 1 st via and the fourth end of the 3 rd via are respectively coupled to two data ends of the second bidirectional transmission chip.
In an optional embodiment, the gating module includes a gating chip, where the gating chip includes n +1 first terminals and 1 second terminal, where the n +1 first terminals of the gating chip are respectively coupled to the data terminals of the n +1 electronic devices, and the second terminal is coupled to the data terminal of the external device.
In an optional embodiment, the gating module includes n gating chips, each of the gating chips includes 2 first terminals and 1 second terminal, where the 2 first terminals of the nth gating chip are respectively coupled to the third terminals of the nth and (n + 1) th pass-through components, and the second terminals are coupled to the data terminal of the external device.
A second aspect of the embodiments of the present application provides a data bidirectional transmission apparatus, including the data bidirectional transmission circuit described above.
A third aspect of the embodiments of the present application provides a bidirectional data transmission system, which includes the bidirectional data transmission apparatus as described above, and at least two electronic devices.
Compared with the prior art, the embodiment of the application has the advantages that: the application provides a data bidirectional transmission circuit, a device and a system, which mainly comprise a first bidirectional transmission chip, a communicating piece, a gating module and a main control chip, wherein two different electronic devices are connected through the bidirectional transmission chip, so that the data bidirectional transmission between the electronic devices is realized, the operation is convenient and fast, and the working efficiency is greatly improved; and the electronic equipment is connected with the external equipment through the gating module so as to realize the expansion of the electronic equipment.
Drawings
Fig. 1 is a schematic diagram of a bidirectional data transmission circuit according to an embodiment of the present disclosure;
fig. 2 is a second schematic diagram of a bidirectional data transmission circuit according to an embodiment of the present disclosure;
fig. 3 is a third schematic diagram of a bidirectional data transmission circuit according to an embodiment of the present disclosure.
Reference numerals are as follows:
a first bidirectional transmission chip: 1-1 to 1-n, a communicating member: 2-1 to 2- (n + 1), gating module: 3. a main control chip: 4. a second bidirectional transmission chip: 5. gating the chip: 6. a second multi-port repeater: 7. an electronic device: 8-1 to 8- (n + 1), external device: 9.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Data transmission between traditional two host computers, or many host computers uses USB flash disk class equipment as the intermediary usually, need plug the USB flash disk many times, and if only under the condition of a display, still need be connected the back with many host computers respectively with the display, just can realize data transmission, and the process is very loaded down with trivial details, and it is very inconvenient to use. Therefore, the application provides a data bidirectional transmission circuit, a device and a system, which mainly comprise a first bidirectional transmission chip, a communicating piece, a gating module and a main control chip, wherein two different electronic devices are connected through the bidirectional transmission chip to realize the bidirectional transmission of data between the electronic devices, and the electronic devices are connected with external devices through the gating module to realize the expansion of the electronic devices. The data bidirectional transmission circuit, device and system will be described in detail below.
Fig. 1 shows a schematic structural diagram of a data bidirectional transmission circuit according to a preferred embodiment of the present application, which specifically includes:
n first bidirectional transmitting chips (e.g., the first bidirectional transmitting chip 1-1 to the first bidirectional transmitting chip 1-n in the figure), each of the first bidirectional transmitting chips including two bidirectional data terminals, the two bidirectional data terminals being respectively coupled to an electronic device (e.g., the electronic device 8-1 to the electronic device 8- (n + 1) in the figure);
n +1 vias (e.g., vias 2-1 through 2- (n + 1) in the figure), each via including a first end, a second end, and a third end for bi-directional data transmission, the first end of each via being coupled to a data transmission end of an electronic device (e.g., electronic device 8-1 in the figure through electronic device 8- (n + 1) in the figure);
second ends of the communication parts 2-1 and 2- (n + 1) are respectively coupled with one data end of the first bidirectional transmission chip 1-1 and the first bidirectional transmission chip 1-n, one second end of each of the communication parts 2-2 to 2-n is respectively coupled with one data end of the first bidirectional transmission chip 1-1 to 1- (n-1), and the other second end of each of the communication parts 2-2 to 2-n is respectively coupled with the other data end of the first bidirectional transmission chip 1-2 to 1-n; the communication member 2-1 to the communication member 2- (n + 1) for communicating the first end to at least one of the second end and the third end; wherein n is a positive integer greater than or equal to 1;
the gating module 3, the gating module 3 is coupled with electronic devices (such as the electronic device 8-1 to the electronic device 8- (n + 1) in the figure) for connecting at least one of the electronic devices to the external device 9.
The main control chip 4, the main control chip 4 is coupled to the gating module 3 and each electronic device (e.g. the electronic device 8-1 to the electronic device 8- (n + 1)) for controlling the gating module 3 and receiving the display signal of each electronic device.
It is obvious to those skilled in the art that, in the embodiment of the present application, the steps of bidirectional data transmission, communicating at least one of the n +1 communicating members to an external device, controlling the gating module, and receiving display signals of a plurality of electronic devices all belong to known technologies in the art, and the core inventive concept of the embodiment of the present application lies in the combination of the devices, and the steps or functional uses related to the devices can be known from the prior art, for example, bidirectional data transmission can be implemented by building a data network channel, for example, by using existing devices and technologies such as 5G and bluetooth, and then, for example, controlling the gating module and receiving display signals of a plurality of electronic devices can be implemented by using a processor, for example, a mcu and other cooperating communication devices, for example, bluetooth, to implement control and reception of signals, and the main control chip adopts a chip product existing in the current market, for example, NT68500, which is not described in detail herein.
It should be noted that the bidirectional data port refers to a port that can be used as both an input port and an output port.
In an alternative embodiment, the first bidirectional transmitting chip (including the first bidirectional transmitting chip 1-1 to the first bidirectional transmitting chip 1-n) has the model number OTI2211.
It should be noted that the electronic devices (including the electronic device 8-1 to the electronic device 8- (n + 1)) may be a desktop computer, a notebook computer, a small notebook computer, a tablet computer, and other electronic devices capable of transmitting data, and the application is not limited thereto.
It should be noted that the external device 9 includes a mouse, a keyboard, a printer, a scanner, a flash disk, an MP3 player, a DC, a DV, a mobile hard disk, a mobile phone, or a tablet, but the application is not limited thereto.
When in use, the electronic device 8-1 can be communicated to at least one of the first bidirectional transmission chip 1-1 and the gating module 3 through the communicating piece 2-1, and the electronic device 8-2 can be communicated to at least one of the first bidirectional transmission chip 1-1, the gating module 3 and the first bidirectional transmission chip 1-2 through the communicating piece 2-2; when the electronic device 8-1 and the electronic device 8-2 are connected to the first bidirectional transmission chip 1-1 at the same time, the bidirectional data transmission between the electronic device 8-1 and the electronic device 8-2 can be realized; similarly, when the electronic device 8-2 and the electronic device 8-3 are connected to the first bidirectional transmission chip 1-2 at the same time, the bidirectional data transmission between the electronic device 8-2 and the electronic device 8-3 can be realized; similarly, when the electronic device 8-n and the electronic device 8- (n + 1) are connected to the first bidirectional transmission chip 1-n at the same time, the bidirectional data transmission between the electronic device 8-n and the electronic device 8- (n + 1) can be realized; when a plurality of electronic devices (including the electronic device 8-1 to the electronic device 8- (n + 1)) are all connected to the gating module 3, the main control chip 4 is required to control the gating module 3 and select one or more of the electronic device 8-1 to the electronic device 8- (n + 1) to be connected to the external device 9.
The present application realizes bidirectional data transmission between two electronic devices by combining the above-mentioned devices, and connects at least one of the n +1 electronic devices to the external device 9.
In an alternative embodiment, the communication components (including the communication components 2-1 to 2- (n + 1)) are analog switches, and the analog switches are further coupled to the main control chip 4. It is to be understood that an analog switch primarily functions as an on signal or an off signal in an electronic device.
In the using process, under the control of the main control chip 4, the first end of the analog switch is communicated to one of the second end and the third end, and specifically, when the main control chip 4 controls the analog switch to communicate the first end thereof with the second end thereof, the electronic devices (for example, the electronic device 8-1 to the electronic device 8- (n + 1) in the figure) can be connected to the corresponding first bidirectional transmission chip; when the main control chip 4 controls the analog switch to connect the first terminal thereof with the third terminal thereof, the electronic device can be connected to the gating module 3.
In an alternative embodiment, the pod (including pods 2-1 through 2- (n + 1)) may also be a first multiport transponder. It should be noted that the multi-port repeater is also called a HUB, and the english name is HUB, which refers to a device that can extend one interface into multiple interfaces and make these interfaces used simultaneously. For example, the USB HUB may be expanded into a plurality of USB interfaces operating independently, and may be divided into USB2.0 HUB, USB3.0 HUB and USB3.1 HUB according to the USB protocols.
In use, the first terminal of the multi-port repeater is simultaneously connected to all the second terminals and the third terminals, so that electronic devices (e.g., the electronic device 8-1 to the electronic device 8- (n + 1) in the figure) are simultaneously connected to the gating module 3 and the corresponding first bidirectional transmission chip. In this embodiment, the multi-port repeater does not need the control of the main control chip, so that the circuit connection is simpler and the use is more convenient.
In an alternative embodiment, the data bi-directional transmission circuit further comprises a second multi-port repeater 7, the second multi-port repeater 7 being coupled between the gating module 3 and the external device 9. Since the multi-port repeater can expand one interface into a plurality of interfaces, when the second multi-port repeater 7 is added to the circuit, a plurality of external devices 9 can be simultaneously connected to the electronic devices (e.g., the electronic device 8-1 to the electronic device 8- (n + 1) in the figure).
In an alternative embodiment, the gating module 3 includes a gating chip, where the gating chip includes n +1 first terminals and 1 second terminal, the n +1 first terminals of the gating chip are respectively coupled to the data terminals of n +1 electronic devices (for example, the electronic device 8-1 to the electronic device 8- (n + 1) in the figure), and the second terminal is coupled to the data terminal of the external device 9.
In an alternative embodiment, the gating module 3 includes n gating chips, each gating chip includes two first terminals and one second terminal, where the two first terminals of the nth gating chip are respectively coupled to the third terminals of the pass-through n and the pass-through n +1, and the second terminal of the gating chip is coupled to the external device 9.
As shown in fig. 2, taking the data bidirectional transmission circuit when n =1 as an example, the communication part 2-1 connects the electronic device 8-1 to at least one of the first bidirectional transmission chip 1-1 and the gating module 3, and the communication part 2-2 connects the electronic device 8-2 to at least one of the first bidirectional transmission chip 1-1 and the gating module 3. When the electronic device 8-1 and the electronic device 8-2 are both connected to the first bidirectional transmission chip 1-1, bidirectional data transmission between the electronic device 8-1 and the electronic device 8-2 can be realized; when the electronic equipment 8-1 and the electronic equipment 8-2 are both connected to the gating module 3, the master control chip 4 controls the electronic equipment to select one of the electronic equipment to be connected to the external equipment 9; the further main control chip 4 is further coupled to the electronic device 8-1 and the electronic device 8-2, and is configured to receive display signals of the two electronic devices.
In an alternative embodiment, the communicating member 2-1 and the communicating member 2-2 are both analog switches, and further, the analog switches are also coupled to the main control chip 4. In this embodiment, the preferred analog switch is of the type BCT4227, where BCT4227 is a high bandwidth, fast double pole double throw analog switch.
In the using process, under the control of the main control chip 4, the first end of the analog switch is communicated to one of the second end and the third end, and specifically, when the main control chip 4 controls the analog switch to communicate the first end with the second end, the electronic device 8-1 and the electronic device 8-2 can be connected to the first bidirectional transmission chip 1-1; when the main control chip 4 controls the analog switch to communicate the first end with the third end, the electronic device 8-1 and the electronic device 8-2 can be connected to the gating module 3; after the electronic device 8-1 and the electronic device 8-2 are connected to the gating module 3, the main control chip 4 controls the connection of one of the electronic device 8-1 and the electronic device 8-2 to the external device 9.
In an alternative embodiment, both the pod 2-1 and the pod 2-2 are first multi-port repeaters.
During use, the first port of the first multi-port repeater is simultaneously connected to all the second ports and the third ports, that is, the electronic device 8-1 is simultaneously connected to the gating module 3 and the first bidirectional transmission chip 1-1, and the electronic device 8-2 is also simultaneously connected to the gating module 3 and the corresponding first bidirectional transmission chip 1-1. In this embodiment, while the electronic device 8-1 and the electronic device 8-2 perform data bidirectional transmission, one of the electronic device 8-1 and the electronic device 8-2 may also be connected to the external device 9; and because the first multiport transponder does not need the control of the main control chip, the circuit connection is simpler, and the use is more convenient.
In an alternative embodiment, the data bidirectional transmission circuit when n =1 further includes a second multi-port repeater 7, and since the second multi-port repeater 7 can expand one interface into a plurality of interfaces and can use the interfaces simultaneously, one of the electronic device 8-1 and the electronic device 8-2 can be connected to a plurality of external devices 9 simultaneously.
As shown in fig. 3, the schematic diagram of the data bidirectional transmission circuit when n =2 is shown, in this case, the data bidirectional transmission circuit mainly includes: the device comprises an electronic device 8-1, an electronic device 8-2, an electronic device 8-3, a communicating piece 2-1, a communicating piece 2-2, a communicating piece 2-3, a first bidirectional transmission chip 1-1, a first bidirectional transmission chip 1-2, a gating module 3 and a main control chip 4.
In an alternative embodiment, the communicating member 2-1, the communicating member 2-2 and the communicating member 2-3 are all analog switches, and further, the three analog switches are further coupled to the main control chip 4.
In the using process, under the control of the main control chip 4, the first end of the analog switch is communicated to one of the second end and the third end, specifically, when the main control chip 4 controls the analog switch to communicate the first end with the second end thereof, the electronic device 8-1 and the electronic device 8-2 can be connected to the first bidirectional transmission chip 1-1 to realize the bidirectional data transmission between the electronic device 8-1 and the electronic device 8-2, and the electronic device 8-2 and the electronic device 8-3 can also be connected to the first bidirectional transmission chip 1-2 to realize the bidirectional data transmission between the electronic device 8-2 and the electronic device 8-3; when the main control chip 4 controls the analog switch to communicate the first end with the third end, the electronic device 8-1, the electronic device 8-2 and the electronic device 8-3 can be connected to the gating module 3, and then controlled by the main control chip 4 to select one of the electronic device 8-1, the electronic device 8-2 and the electronic device 8-3 to be connected to the external device 9.
In an alternative embodiment, the connections 2-1, 2-2 and 2-3 are each first multi-port transponders.
In use, the first port of the first multi-port repeater is simultaneously connected to all the second ports and the third ports, that is, the electronic device 8-1 is simultaneously connected to the gating module 3 and the first bidirectional transmitting chip 1-1, the electronic device 8-2 is also simultaneously connected to the gating module 3, the first bidirectional transmitting chip 1-1 and the first bidirectional transmitting chip 1-2, and the electronic device 8-3 is simultaneously connected to the gating module 3 and the first bidirectional transmitting chip 1-2.
In the embodiment, the first multi-port repeater does not need to be controlled by the main control chip, so that the circuit connection is simpler and the use is more convenient.
In an alternative embodiment, the data bidirectional transmission circuit when n =2 further includes a second multi-port repeater 7, and since the second multi-port repeater 7 can expand one interface into a plurality of interfaces and can enable the interfaces to be connected to a plurality of external devices 9 simultaneously, it is possible to establish a connection between one of the electronic device 8-1, the electronic device 8-2, and the electronic device 8-3 and the plurality of external devices 9.
The circuit can realize the data bidirectional transmission between the electronic equipment 8-1 and the electronic equipment 8-2, can also realize the data bidirectional transmission between the electronic equipment 8-2 and the electronic equipment 8-3, and can realize the connection relationship between one of the electronic equipment 8-1, the electronic equipment 8-2 and the electronic equipment 8-3 and the external equipment 9.
In an alternative embodiment, the data bidirectional transmission circuit when n =2 further includes: and a second bidirectional transmission chip 5, wherein the second bidirectional transmission chip 5 is respectively coupled with the communication piece 2-1 and the communication piece 2-3.
Further, the communication element 2-1 and the communication element 2-3 each further include a fourth end, and the fourth end of the communication element 2-1 and the fourth end of the communication element 2-3 are respectively coupled to two data ends of the second bidirectional transmission chip 5.
The circuit can realize the mutual data transmission between any two electronic devices in the three electronic devices (namely the electronic device 8-1, the electronic device 8-2 and the electronic device 8-3 in the figure).
In an alternative embodiment, when n =2, the gating module 3 includes a gating chip, and taking the case of n =2 as an example, the gating chip includes three first terminals respectively coupled to the electronic device 8-1, the electronic device 8-2, and the electronic device 8-3, and under the control of the main control chip 4, one of the three electronic devices may be selected to be connected to the external device 9.
In an alternative embodiment, when n =2, the gating module 2 includes three gating chips, each gating chip includes two first terminals and one second terminal, the two first terminals of one gating chip are respectively coupled to the third terminals of the pass-through 2-1 and the pass-through 2-2, and the second terminal is coupled to the data terminal of the external device 9; and two first ends of the other gating chip are respectively coupled to the third ends of the connecting pieces 2-2 and 2-3, and the second end of the other gating chip is coupled to the data end of the external device 9.
In another embodiment of the present application, a bidirectional data transmission device is further provided, which includes the bidirectional data transmission circuit as described above, and specifically, further includes a housing carrying the circuit, where the power supply and the display panel can be installed in the housing, and it is understood that a plurality of interfaces may also be configured on the housing.
In another embodiment of the present application, a data bidirectional transmission system is further provided, which includes the data bidirectional transmission apparatus as described above, and at least two electronic devices.
It should be clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional units and modules is only used for illustration, and in practical applications, the above function distribution may be performed by different functional units and modules as needed, that is, the internal structure of the apparatus may be divided into different functional units or modules to perform all or part of the above described functions. Each functional unit and module in the embodiments may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the description of each embodiment has its own emphasis, and reference may be made to the related description of other embodiments for parts that are not described or recited in any embodiment.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. A bidirectional data transmission circuit, comprising:
each first bidirectional transmission chip comprises two bidirectional data ends, and the two bidirectional data ends are respectively coupled with an electronic device;
n +1 connecting pieces, each connecting piece comprises a first end, a second end and a third end for bidirectional data transmission, the first end of each connecting piece is coupled with a data transmission end of an electronic device, the second ends of the 1 st and the n +1 th connecting pieces are respectively coupled with one data end of the 1 st and the nth first bidirectional transmission chips, one second end of the 2 nd to the nth connecting pieces is respectively coupled with one data end of the 1 st to the n-1 st first bidirectional transmission chips, and the other second end of the 2 nd to the nth connecting pieces is respectively coupled with the other data end of the 2 nd to the nth first bidirectional transmission chips; the communication piece is used for communicating the first end to at least one of the second end and the third end; wherein n is a positive integer greater than or equal to 1;
a gating module coupled to the n +1 electronic devices for connecting at least one of the n +1 electronic devices to an external device;
the master control chip is coupled with the gating module and each electronic device and is used for controlling the gating module and receiving display signals of the electronic devices.
2. The data bidirectional transmission circuit of claim 1, wherein the connection element is an analog switch, and the analog switch is further coupled to the main control chip.
3. The data bidirectional transmission circuit of claim 1 wherein said connectivity piece is a first multi-port transponder.
4. The data bi-directional transmission circuit of claim 1, wherein the data bi-directional transmission circuit further comprises a second multi-port repeater coupled between the gating module and the external device.
5. The data bidirectional transfer circuit of claim 1 wherein if n =2, the data bidirectional transfer circuit further comprises: a second bidirectional transmitting chip coupled to the 1 st and 3 rd vias, respectively.
6. The data bidirectional transmission circuit of claim 5, wherein if n =2, each of the 1 st via and the 3 rd via further includes a fourth terminal, and the fourth terminal of the 1 st via and the fourth terminal of the 3 rd via are respectively coupled to two data terminals of the second bidirectional transmission chip.
7. The data bidirectional transmission circuit according to claim 1, wherein the gating module includes a gating chip, the gating chip includes n +1 first terminals and 1 second terminal, the n +1 first terminals of the gating chip are respectively coupled to the data terminals of the n +1 electronic devices, and the second terminal is coupled to the data terminal of the external device.
8. The data bidirectional transmission circuit of claim 1, wherein the gating module includes n gating chips, each of the gating chips includes 2 first terminals and 1 second terminal, wherein the 2 first terminals of the nth gating chip are respectively coupled to the third terminals of the nth and (n + 1) th communication parts, and the second terminals are coupled to the data terminals of an external device.
9. A data bidirectional transmission apparatus comprising the data bidirectional transmission circuit according to any one of claims 1 to 8.
10. A data bidirectional transmission system comprising the data bidirectional transmission apparatus of claim 9 and at least two electronic devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222492713.7U CN218217359U (en) | 2022-09-20 | 2022-09-20 | Data bidirectional transmission circuit, device and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222492713.7U CN218217359U (en) | 2022-09-20 | 2022-09-20 | Data bidirectional transmission circuit, device and system |
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| CN218217359U true CN218217359U (en) | 2023-01-03 |
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