CN109426638B - USB connecting device and terminal equipment comprising same - Google Patents
USB connecting device and terminal equipment comprising same Download PDFInfo
- Publication number
- CN109426638B CN109426638B CN201710737733.7A CN201710737733A CN109426638B CN 109426638 B CN109426638 B CN 109426638B CN 201710737733 A CN201710737733 A CN 201710737733A CN 109426638 B CN109426638 B CN 109426638B
- Authority
- CN
- China
- Prior art keywords
- data transmission
- usb
- usb connector
- passive switch
- transmission end
- 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.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4004—Coupling between buses
- G06F13/4022—Coupling between buses using switching circuits, e.g. switching matrix, connection or expansion network
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
- G06F13/387—Information transfer, e.g. on bus using universal interface adapter for adaptation of different data processing systems to different peripheral devices, e.g. protocol converters for incompatible systems, open system
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4004—Coupling between buses
- G06F13/4009—Coupling between buses with data restructuring
- G06F13/4018—Coupling between buses with data restructuring with data-width conversion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/20—Coupling parts carrying sockets, clips or analogous contacts and secured only to wire or cable
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
Abstract
The invention discloses a USB connecting device and a terminal device comprising the same, wherein the USB connecting device comprises: the USB connector is used for connecting external equipment and is provided with a first data transmission end, a second data transmission end, a first configuration channel end and a second configuration channel end; a bidirectional passive switch having a plurality of inputs and a plurality of outputs; the detection unit is respectively connected with the first configuration channel end and the second configuration channel end and is used for acquiring corresponding access information when the USB connector is accessed into external equipment; the controller is respectively connected with the bidirectional passive switch, the USB connector and the detection unit and used for configuring the power supply end of the USB connector according to the access information so as to supply power to external equipment or take power from the external equipment and controlling the bidirectional passive switch to keep a preset mode or perform cross reversal work according to the access information, so that the first data transmission end and the second data transmission end can transmit data simultaneously, and the utilization rate of the USB connector is improved.
Description
Technical Field
The present invention relates to the field of USB technologies, and in particular, to a USB connection device and a terminal device including the same.
Background
12 months in 2013, a USB3.0 promotion group announces the USB3.1 standard of the next generation, the specification of a newly-added USB Type C connector is provided, and the main advantages of the new interface are as follows: 1) the transmission speed is high, the maximum data transmission speed can reach 10 Gbit/s, and the standard of USB3.1 is followed; 2) the interfaces at the upper end and the lower end are completely the same, the front side and the back side are not distinguished any more, and the two directions can be inserted, so that the device is more humanized; 3) stronger power transmission capability (up to 100W); 4) can be compatible with USB3.1, USB3.0 and USB 2.0.
At present, a Type C interface is widely applied to USB2.0 and USB3.0 buses of consumer electronic products such as mobile phones, and the implementation scheme is shown in fig. 1, and the principle is as follows:
firstly, whether the peripheral is connected or not can be detected through the CC logic chip, whether the peripheral is a forward insertion port or a backward insertion port, whether the peripheral is a DFP (downstream facing port) or a UFP (upstream facing port) is distinguished, and state information is reported to the processor. And secondly, the processor configures VBUS according to the DFP or UFP information reported by the CC logic chip, and outputs or inputs (charges) power supply. According to the forward and backward insertion information reported by the CC logic chip, a control signal is output to the USB3.0 high-speed switch to switch the corresponding channel, so that the transmission of USB data by both forward and backward insertion is realized.
However, the Type C interface supports forward and backward insertion, and the pin definition is a symmetric structure, but only one set in the symmetric structure is actually used for transmitting USB3.0 data. USB2.0 because data rate is lower, with USB2.0D + and USB2.0D-of Type C interface two-sided respectively together, can realize just, reverse plug-in can both transmit USB2.0 data. While the USB3.0 cannot adopt the USB2.0 double-sided short circuit scheme due to high data rate and high impedance requirement, and only can add a high-bandwidth and low-impedance data switch, the data switch selected by the above prior art scheme is a single-input and dual-output switch, and is inevitably idle in one group, for example, when the switch is switched to the first group TX1+/TX 1-and RX1+/RX 1-to transmit data, the second group TX2+/TX 2-and RX2+/RX 2-are idle.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the art described above. Therefore, an object of the present invention is to provide a USB connection device, which enables a first data transmission end and a second data transmission end of a USB connector to transmit data simultaneously, improves the utilization rate of the USB connector, facilitates the implementation of personalized customization of the USB connection device, and improves user experience.
A second object of the present invention is to provide a terminal device.
In order to achieve the above object, a first embodiment of the present invention provides a USB connection device, including: the USB connector is used for connecting external equipment and is provided with a first data transmission end, a second data transmission end, a first configuration channel end arranged corresponding to the first data transmission end and a second configuration channel end arranged corresponding to the second data transmission end; the bidirectional passive switch is provided with a plurality of input ends and a plurality of output ends, wherein the plurality of input ends comprise two groups, one group is connected with the USB signal end corresponding to the first data transmission end, the other group is connected with the extension signal end corresponding to the second data transmission end, and the plurality of output ends are respectively connected with the first data transmission end and the second data transmission end correspondingly; the detection unit is respectively connected with the first configuration channel end and the second configuration channel end, and is used for detecting whether the USB connector is connected with external equipment or not and acquiring corresponding access information when the USB connector is connected with the external equipment; the controller is respectively connected with the bidirectional passive switch, the USB connector and the detection unit, and is used for configuring the power end of the USB connector according to the access information to supply power to the external equipment or take power from the external equipment, and controlling the bidirectional passive switch to keep a preset mode or perform cross reversal work according to the access information so as to enable the first data transmission end and the second data transmission end to simultaneously realize data transmission.
According to the USB connector provided by the embodiment of the invention, the bidirectional passive switch is used as the data switch, so that the first data transmission end and the second data transmission end of the USB connector can realize simultaneous data transmission, the utilization rate of the USB connector is improved, the personalized customization of the USB connecting device is facilitated, and the user experience is improved.
In addition, the USB connection device proposed according to the above embodiment of the present invention may further have the following additional technical features:
according to one embodiment of the invention, the access information comprises forward insertion, backward insertion and host mode, device mode.
According to an embodiment of the invention, the controller is specifically configured to: when the access information is in a positive insertion mode and in a host mode, controlling the bidirectional passive switch to keep a preset mode, and configuring a power supply end of the USB connector to supply power to the external equipment; when the access information is in a positive insertion mode and in an equipment mode, controlling the bidirectional passive switch to keep a preset mode, and configuring the power end to take power from the external equipment; when the access information is reverse plug and in a host mode, controlling the bidirectional passive switch to perform cross reverse work, and configuring the power end to supply power to the external equipment; and when the access information is reverse plug and in an equipment mode, controlling the bidirectional passive switch to perform cross reverse work, and configuring the power end to take power from the external equipment.
According to an embodiment of the invention, when the USB connector is connected to an external device, if the detection unit detects that the first configuration channel terminal is connected to a pull-down resistor, it is determined that the USB connector is plugged and in a host mode; and if the detection unit detects that the second configuration channel end is connected with a pull-down resistor, judging that the USB connector is reversely plugged and is in a host mode.
According to an embodiment of the present invention, the USB connection device further includes: the HDMI connector is used for connecting an HDMI device and is provided with an HDMI data transmission end; the converter, the converter respectively with the controller, HDMI connector and two-way passive switch link to each other, the converter is used for with HDMI data conversion that HDMI data transmission end transmitted is MHL data, wherein, two-way passive switch will MHL data transmission extremely the USB connector, and through the USB connector will MHL data output extremely external equipment.
According to an embodiment of the present invention, when the USB connector is connected to an external device storing microphone data, the controller is further specifically configured to: and inputting a microphone clock signal and a microphone data signal to the extended signal end so as to acquire microphone data stored in the external equipment from the second data transmission end of the USB connector.
According to one embodiment of the invention, the USB connector is a USB TYPE C connector, the bidirectional passive switch is a HD3SS460 chip, and the converter is a SII8334 chip.
According to one embodiment of the invention, the pull-down resistor has a resistance of 5.1k Ω.
Further, the invention provides a terminal device, which includes the USB connection apparatus.
By adopting the USB connecting device, the terminal equipment of the embodiment of the invention can enable the first data transmission end and the second data transmission end of the USB connector to realize simultaneous data transmission, improves the utilization rate of the USB connector, is beneficial to realizing the personalized customization of the USB connecting device and improves the user experience.
Drawings
FIG. 1 is a schematic structural diagram of a USB connecting device in the related art;
FIG. 2 is a schematic structural diagram of a USB connecting device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a USB connection device according to an embodiment of the present invention;
fig. 4 is a block diagram of a terminal device according to an embodiment of the present invention;
FIG. 5 is a diagram illustrating signal and data transmission when a USB connector is plugged in and unplugged, according to an embodiment of the invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The USB connection device and the terminal apparatus including the same according to the embodiments of the present invention are described below with reference to the accompanying drawings.
FIG. 2 is a schematic structural diagram of a USB connecting device according to an embodiment of the present invention. As shown in fig. 2, the USB connection device includes: a USB connector 10, a bidirectional passive switch 20, a detection unit 30, and a controller 40.
Specifically, the USB connector 10 is used for connecting an external device, and the USB connector 10 has a first data transmission terminal (i.e., TX1+/TX 1-and RX1+/RX 1-in fig. 2) and a second data transmission terminal (i.e., TX2+/TX 2-and RX2+/RX 2-in fig. 2), and a first configuration channel terminal CC1 provided corresponding to the first data transmission terminal and a second configuration channel terminal CC2 provided corresponding to the second data transmission terminal. The bidirectional passive switch 20 has a plurality of input terminals and a plurality of output terminals, wherein the plurality of input terminals includes two groups, one group (i.e., CRX1P, CRX1N, CTX1P, CTX1N in fig. 2) is connected to the USB signal terminal corresponding to the first data transmission terminal, the other group (i.e., CRX2P, CRX2N, CTX2P, CTX2N in fig. 2) is connected to the extension signal terminal corresponding to the second data transmission terminal, and the plurality of output terminals (i.e., LNDP, LNDN, LNCP, LNCN, LNBP, LNBN, LNAP, LNAN in fig. 2) are respectively connected to the first data transmission terminal and the second data transmission terminal. The detecting unit 30 is connected to the first configuration channel CC1 and the second configuration channel CC2, respectively, and the detecting unit 30 is configured to detect whether the USB connector 10 is connected to an external device, and obtain corresponding access information when the USB connector 10 is connected to the external device. The controller 40 is respectively connected to the bidirectional passive switch 20, the USB connector 10 and the detection unit 30, and the controller 40 is configured to configure the power supply terminal VBUS of the USB connector 10 according to the access information to supply power to an external device or to obtain power from the external device, and control the bidirectional passive switch 20 to maintain a preset mode or perform cross inversion operation according to the access information, so that the first data transmission terminal and the second data transmission terminal simultaneously implement data transmission.
Referring to fig. 2, the output terminals LNDP, LNDN, LNCP and LNCN of the bidirectional passive switch 20 are correspondingly connected to the first data transmission terminal TX1+, TX1-, RX1+ and RX 1-of the USB connector 10, and the output terminals LNBP, LNBN, LNAP and LNAN of the bidirectional passive switch 20 are correspondingly connected to the second data transmission terminal of the USB connector 10.
Alternatively, the USB connector 10 may be a USB TYPE C connector, and the bidirectional passive switch 20 may be an HD3SS460 chip.
In this embodiment, the access information is whether the USB connector 10 is plugged in or unplugged, and whether the USB connection device is in host mode (i.e., DFP) or device mode (i.e., UFP).
In some embodiments of the present invention, the controller 40 may be configured to control the bidirectional passive switch 20 to maintain the preset mode and configure the power terminal VBUS of the USB connector 10 to supply power to the external device when the access information is the positive insertion and is the DFP; when the access information is the positive insertion and the UFP, the bidirectional passive switch 20 is controlled to keep the preset mode, and the power supply terminal VBUS is configured to take power from the external device; when the access information is reverse insertion and is DFP, the bidirectional passive switch 20 is controlled to perform cross reverse operation, and a power supply end VBUS is configured to supply power to external equipment; and when the access information is reverse insertion and UFP, controlling the bidirectional passive switch 20 to perform cross reverse operation, and configuring a power supply end to take power from an external device.
When the USB connector is connected to an external device, if the detection unit 30 detects that the first configuration channel CC1 is connected to the pull-down resistor, it is determined that the USB connector 10 is plugged and is DFP; if the detection unit 30 detects that the second configuration channel terminal CC1 is connected to the pull-down resistor, it is determined that the USB connector 10 is reversely plugged and is DFP.
The resistance of the pull-down resistor may be 5.1k Ω.
Specifically, referring to fig. 5, when the detecting unit 30 detects that the USB connector 10 is being plugged in and the controller 40 reports the DFP information, the bidirectional passive switch 20 maintains the preset mode and configures the power source terminal VBUS of the USB connector 10 to charge the external device. If the CRX1/CTX1 terminal receives the USB control signal and the CRX2/CTX2 terminal receives the expansion control signal, the first data transmission terminal of the USB connector 10 corresponding to the LnD/LnC terminal is selected to transmit data, and the second data transmission terminal of the USB connector 10 corresponding to the LnA/LnB terminal is selected to transmit data, at this time, the CSBU1 terminal corresponds to the SBU1 terminal, and the CSBU2 terminal corresponds to the SBU2 terminal.
When the detecting unit 30 detects that the USB connector 10 is reversely plugged and the controller 40 reports the DFP information, the bidirectional passive switch 20 performs a cross-inversion operation and configures the power source terminal VBUS of the USB connector 10 to charge an external device. If the CRX1/CTX1 terminal receives the extended control signal and the CRX2/CTX2 terminal receives the USB control signal, the second data transmission terminal of the USB connector 10 corresponding to the LnA/LnB terminal is selected to transmit data, the first data transmission terminal of the USB connector 10 corresponding to the LnD/LnC terminal is selected to transmit data, the CSBU1 terminal corresponds to the SBU2 terminal, and the CSBU2 terminal corresponds to the SBU1 terminal.
It should be noted that the CRX1, the CTX1, the CRX2, and the CTX2 each represent a set of differential signals, such as CRX1 representing CRX1+ and CRX 1-.
In some embodiments of the present invention, as shown in fig. 3, the USB connection device may further include: an HDMI connector 50 and a converter 60.
The HDMI connector 50 is used for connecting an HDMI device, and the HDMI connector 50 has an HDMI data transmission terminal. The converter 60 is connected to the controller 40, the HDMI connector 50, and the bidirectional passive switch 20, respectively, and the converter 60 is configured to convert the HDMI data transmitted by the HDMI data transmission terminal into MHL data, wherein the bidirectional passive switch 20 transmits the MHL data to the USB connector 10 and outputs the MHL data to the external device through the USB connector 10.
Alternatively, the converter 50 may be a SII8334 chip.
In some embodiments of the present invention, when the USB connector 10 is connected to an external device storing microphone data, the controller 50 may be further configured to input a microphone clock signal MIC _ CLK and a microphone data signal MIC _ DAT to the extension signal terminal to acquire the microphone data stored in the external device from the second data transmission terminal of the USB connector 10.
It should be noted that the USB connection device can be used in a terminal device, where the terminal device can be a DFP device, such as a power adapter, a DRP (Dual Role Port) device, such as a computer, a mobile phone, a tablet, a mobile power supply, etc., or a UFP device, such as a USB disk, an earphone, a mouse, etc.
Wherein, the DRP device may serve as a DFP device or a UFP device. When the DPR equipment is accessed to the UFP equipment, the DRP equipment is used as DFP equipment; when the DRP equipment is accessed to the DFP equipment, the DRP equipment is used as UFP equipment; when the DRP device accesses the DRP device, any one party is DFP, and the other party is UFP. A pull-up resistor Rp is connected to the first configuration channel CC1 of the DFP device, the second configuration channel CC2 is floating, a pull-down resistor Rd is connected to the first configuration channel CC1 of the UFP device, and the second configuration channel CC2 is floating.
When the USB connection apparatus is used as DFP, if the USB connector 10 does not access the external device, VBUS of the USB connection apparatus does not output; if the USB connector 10 is connected to an external device, the configured channel ends are connected correspondingly, the detection unit 30 detects the pull-down resistor Rd of the UFP, which indicates that the USB connector 10 is connected to the external device, and the controller 40 configures VBUS to supply power to the external device.
For example, referring to fig. 3, a USB connection device is disposed in a notebook computer, and AR glasses are connected to the USB connection device for illustration, wherein the CC2 is suspended at the end of the AR glasses, and the CC1 is connected to a pull-down 5.1K Ω resistor.
When the USB connection device is connected to the AR glasses with USB3.0 interface (the AR glasses are equipped with a camera), referring to table 1, if the CC logic chip (detection unit 30) of the USB connection device detects that the first channel configuration terminal CC1 is connected to the pull-down 5.1K Ω resistor, it is determined that the AR glasses are inserted, and the connection information is that the USB connector 10 is being inserted and the USB connection device is DFP, and then the controller 40 can supply power to the AR glasses through the power supply terminal VBUS of the USB connector 10. The controller 40 outputs a low level signal (i.e., a USB control signal) to CRX1 and CTX1 ports of the HD3SS460 chip through the USB signal terminal to select the first data transmission terminal to transmit data collected by the AR glasses camera, so that the transmitted collected data can be stored in the memory of the notebook computer.
Meanwhile, the controller 40 may send a spread signal to the CTX2 of the HD3SS460 chip through the spread signal terminal to select the second data transmission terminal TX2 to transmit MHL +/-data. Specifically, the SII8334 chip may convert the HDMI data output from the HDMI device through the HDMI connector 50 into MHL +/-, transmit the MHL +/-to an MHL receiver of the AR glasses through the extended CTX2, and decode and display the data on an OLED (Organic Light-Emitting Diode) screen of the AR glasses.
In addition, the controller 40 may also transmit a microphone clock signal MIC _ CLK and a microphone data signal MIC _ DAT to the extension terminal CRX2 of the HD3SS460 chip to receive microphone data transmitted by the AR glasses through RX2+, RX 2-of the USB TYPE C connector.
TABLE 1
Therefore, after the AR glasses are connected to the notebook computer with the USB connecting device, the requirement of simultaneously transmitting USB2.0, USB3.0, MHL +/-, and microphone data can be met through the double-sided physical interface of the USB connector 10.
It should be noted that in this embodiment, the pins of the USB connector 10 can be customized, and the pin assignment thereof can be shown in table 2:
TABLE 2
In summary, according to the USB connection device in the embodiment of the present invention, the bidirectional passive switch is used as the data switch, so that the first data transmission end and the second data transmission end of the USB connector can transmit data simultaneously, the utilization rate of the USB connector is improved, the USB connection device is beneficial to realizing personalized customization, and the user experience is improved.
Fig. 4 is a block diagram of a terminal device according to an embodiment of the present invention. As shown in fig. 4, the terminal device 1000 includes the USB connection apparatus 100 of the above-described embodiment.
By adopting the USB connecting device, the terminal equipment of the embodiment of the invention can enable the first data transmission end and the second data transmission end of the USB connector to realize simultaneous data transmission, improves the utilization rate of the USB connector, is beneficial to realizing the personalized customization of the USB connecting device and improves the user experience.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Each functional unit in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. A USB connection device, comprising:
the USB connector is used for connecting external equipment and is provided with a first data transmission end, a second data transmission end, a first configuration channel end arranged corresponding to the first data transmission end and a second configuration channel end arranged corresponding to the second data transmission end;
the bidirectional passive switch is provided with a plurality of input ends and a plurality of output ends, wherein the plurality of input ends comprise two groups, one group is connected with the USB signal end corresponding to the first data transmission end, the other group is connected with the extension signal end corresponding to the second data transmission end, and the plurality of output ends are respectively connected with the first data transmission end and the second data transmission end correspondingly;
the detection unit is respectively connected with the first configuration channel end and the second configuration channel end, and is used for detecting whether the USB connector is connected with external equipment or not and acquiring corresponding access information when the USB connector is connected with the external equipment;
the controller is respectively connected with the bidirectional passive switch, the USB connector and the detection unit, and is used for configuring a power supply end of the USB connector according to the access information to supply power to the external equipment or take power from the external equipment, and controlling the bidirectional passive switch to keep a preset mode or perform cross reversal work according to the access information so as to enable the first data transmission end and the second data transmission end to simultaneously realize data transmission; when the access information is in a host mode and is in a positive insertion mode, the controller is used for controlling the bidirectional passive switch to keep a preset mode, configuring a power end of the USB connector to supply power to the external device, simultaneously controlling the USB signal end to output a low-level signal to the bidirectional passive switch to select the first data transmission end to transmit data collected by a camera of the external device, and simultaneously controlling the extension signal end to send a microphone clock signal and a microphone data signal to the bidirectional passive switch to select the second data transmission end to transmit microphone data transmitted by the external device.
2. The USB connection apparatus according to claim 1, wherein the access information includes a forward plug, a reverse plug, and a host mode, a device mode.
3. The USB connection apparatus of claim 2, wherein the controller is specifically configured to:
when the access information is in a positive insertion mode and in an equipment mode, controlling the bidirectional passive switch to keep a preset mode, and configuring the power end to take power from the external equipment;
when the access information is reverse plug and in a host mode, controlling the bidirectional passive switch to perform cross reverse work, and configuring the power end to supply power to the external equipment;
and when the access information is reverse plug and in an equipment mode, controlling the bidirectional passive switch to perform cross reverse work, and configuring the power end to take power from the external equipment.
4. The USB connection apparatus of claim 1, wherein when the USB connector is connected to an external device,
if the detection unit detects that the first configuration channel end is connected with a pull-down resistor, the USB connector is judged to be inserted and in a host mode;
and if the detection unit detects that the second configuration channel end is connected with a pull-down resistor, judging that the USB connector is reversely plugged and is in a host mode.
5. The USB connection device of claim 1, further comprising:
the HDMI connector is used for connecting an HDMI device and is provided with an HDMI data transmission end;
the converter, the converter respectively with the controller, HDMI connector and two-way passive switch link to each other, the converter is used for with HDMI data conversion that HDMI data transmission end transmitted is MHL data, wherein, two-way passive switch will MHL data transmission extremely the USB connector, and through the USB connector will MHL data output extremely external equipment.
6. The USB connection apparatus according to claim 1, wherein the external device is AR glasses.
7. The USB connection device of claim 5, wherein the USB connector is a USB TYPE C connector, the bidirectional passive switch is an HD3SS460 chip, and the converter is an SII8334 chip.
8. The USB connecting device according to claim 4, wherein the pull-down resistor has a resistance of 5.1k Ω.
9. A terminal device, characterized in that it comprises a USB connection means according to any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710737733.7A CN109426638B (en) | 2017-08-24 | 2017-08-24 | USB connecting device and terminal equipment comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710737733.7A CN109426638B (en) | 2017-08-24 | 2017-08-24 | USB connecting device and terminal equipment comprising same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109426638A CN109426638A (en) | 2019-03-05 |
| CN109426638B true CN109426638B (en) | 2021-04-20 |
Family
ID=65501478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710737733.7A Active CN109426638B (en) | 2017-08-24 | 2017-08-24 | USB connecting device and terminal equipment comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109426638B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110471878B (en) * | 2019-08-22 | 2021-05-07 | 深圳市新龙鹏科技有限公司 | Method, device, equipment and storage medium for realizing blind plugging control of double TypeC interfaces |
| TWI714243B (en) | 2019-09-03 | 2020-12-21 | 威鋒電子股份有限公司 | Usb integrated circuit |
| CN111522767B (en) * | 2020-05-13 | 2021-12-14 | 硅谷数模(苏州)半导体有限公司 | USB-C device and electronic device |
| CN115885439A (en) * | 2020-11-30 | 2023-03-31 | 华为技术有限公司 | Method and device for identifying insertion mode of connector |
| EP4303737A4 (en) * | 2021-03-24 | 2024-04-24 | Huawei Tech Co Ltd | Data transmission apparatus and data transmission method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105045738A (en) * | 2014-03-24 | 2015-11-11 | 诺基亚技术有限公司 | Method and device for connecting USB type-c devices |
| WO2016061683A1 (en) * | 2014-10-21 | 2016-04-28 | Icron Technologies Corporation | Devices and methods for providing reduced bandwidth displayport communication |
| EP3051382A1 (en) * | 2015-01-28 | 2016-08-03 | Samsung Electronics Co., Ltd. | Electronic device and method for managing power |
| CN205540713U (en) * | 2015-12-31 | 2016-08-31 | 北京小鸟看看科技有限公司 | Portable device |
| CN106021150A (en) * | 2016-04-29 | 2016-10-12 | 青岛海信电器股份有限公司 | Type-C interface equipment, communication system and communication method |
| CN106054387A (en) * | 2016-07-19 | 2016-10-26 | 深圳纳德光学有限公司 | Head-mounted displayer and picture-in-picture display method and system thereof |
| CN106207687A (en) * | 2016-08-30 | 2016-12-07 | 硅谷数模半导体（北京）有限公司 | The conversion method of data-interface and device |
| CN106255003A (en) * | 2016-08-19 | 2016-12-21 | 华为技术有限公司 | Audio process in the operation control method of earphone noise reduction and terminal unit |
| CN206147616U (en) * | 2016-09-19 | 2017-05-03 | 深圳市科秀科技有限公司 | Novel USB audio frequency and two transmission circuits that charge |
| CN107085507A (en) * | 2016-02-16 | 2017-08-22 | 三星电子株式会社 | Data receiving-transmitting method and device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105760328B (en) * | 2016-02-03 | 2019-07-12 | 深圳多哚新技术有限责任公司 | A kind of VR equipment USB master-slave switching method and system |
-
2017
- 2017-08-24 CN CN201710737733.7A patent/CN109426638B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105045738A (en) * | 2014-03-24 | 2015-11-11 | 诺基亚技术有限公司 | Method and device for connecting USB type-c devices |
| WO2016061683A1 (en) * | 2014-10-21 | 2016-04-28 | Icron Technologies Corporation | Devices and methods for providing reduced bandwidth displayport communication |
| EP3051382A1 (en) * | 2015-01-28 | 2016-08-03 | Samsung Electronics Co., Ltd. | Electronic device and method for managing power |
| CN205540713U (en) * | 2015-12-31 | 2016-08-31 | 北京小鸟看看科技有限公司 | Portable device |
| CN107085507A (en) * | 2016-02-16 | 2017-08-22 | 三星电子株式会社 | Data receiving-transmitting method and device |
| CN106021150A (en) * | 2016-04-29 | 2016-10-12 | 青岛海信电器股份有限公司 | Type-C interface equipment, communication system and communication method |
| CN106054387A (en) * | 2016-07-19 | 2016-10-26 | 深圳纳德光学有限公司 | Head-mounted displayer and picture-in-picture display method and system thereof |
| CN106255003A (en) * | 2016-08-19 | 2016-12-21 | 华为技术有限公司 | Audio process in the operation control method of earphone noise reduction and terminal unit |
| CN106207687A (en) * | 2016-08-30 | 2016-12-07 | 硅谷数模半导体（北京）有限公司 | The conversion method of data-interface and device |
| CN206147616U (en) * | 2016-09-19 | 2017-05-03 | 深圳市科秀科技有限公司 | Novel USB audio frequency and two transmission circuits that charge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109426638A (en) | 2019-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109426638B (en) | USB connecting device and terminal equipment comprising same | |
| CN109286764B (en) | Television with USB TYPE-C interface | |
| US7673092B2 (en) | PCI Express interface | |
| CN106796564B (en) | Serial bus electrical termination control | |
| US9471525B2 (en) | Cable with circuitry for communicating performance information | |
| US20140013024A1 (en) | Interposer and intelligent multiplexer to provide a plurality of peripherial buses | |
| US11176071B2 (en) | USB signal switch circuitry using standard USB hub and method of operation the same | |
| US10311000B2 (en) | Integrated universal serial bus (USB) type-C switching | |
| US9379497B2 (en) | USB SSIC thin card device and data transfer method thereof | |
| US20110191503A1 (en) | Motherboard Compatible with Multiple Versions of Universal Serial Bus (USB) and Related Method | |
| JP5988449B2 (en) | Serial communication via communication control pin | |
| KR20170013952A (en) | Super hub system and method thereof | |
| US20090037622A1 (en) | Method and system for changing operation modes of an interface device | |
| WO2017166787A1 (en) | Usb type-c interface system of smart mobile terminal | |
| US11403245B2 (en) | Terminal, terminal peripheral, signal transmission system and signal sending and receiving method | |
| CN202872142U (en) | Multifunctional USB (Universal Serial Bus) data line | |
| CN107506322B (en) | Type-C adapter for realizing detection of USB equipment and channel control method | |
| US9081908B2 (en) | Operating M-PHY based communications over serial advanced technology attachment (SATA)-based interface, and related cables, connectors, systems and methods | |
| US8307228B2 (en) | Integrated network chip and electronic device | |
| EP2765571A1 (en) | Micro USB3.0 connector for simultaneous video, power and data transmission (NGC-e) | |
| EP2682872B1 (en) | Interposer and intelligent multiplexer to provide a plurality of peripherial buses | |
| CN212659794U (en) | Adapter for converting Type-C interface into Type-C interface | |
| CN220752704U (en) | Type-C interface-based extensible test circuit | |
| US11379396B2 (en) | Memory card access module and memory card access method | |
| US8688888B1 (en) | Computer peripheral device and operating method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |