WO2021243488A1 - 一种传输接口、传输线缆、电子设备及信号传输方法 - Google Patents
一种传输接口、传输线缆、电子设备及信号传输方法 Download PDFInfo
- Publication number
- WO2021243488A1 WO2021243488A1 PCT/CN2020/093617 CN2020093617W WO2021243488A1 WO 2021243488 A1 WO2021243488 A1 WO 2021243488A1 CN 2020093617 W CN2020093617 W CN 2020093617W WO 2021243488 A1 WO2021243488 A1 WO 2021243488A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- transmission
- terminal
- interface
- control signal
- transmission line
- Prior art date
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
Definitions
- This application relates to the field of information technology, in particular to a transmission interface, a transmission cable, an electronic device, and a signal transmission method.
- USB Type-C The universal serial bus (USB) Type-C interface has a compact design and supports functions such as power delivery (Power Delivery), and has quickly become the default interface for mobile consumer electronic devices.
- USB Type-C cannot meet the transmission requirements of high-speed media streams (including video streams and/or audio streams).
- This application provides a transmission interface, a transmission cable, an electronic device, and a signal transmission method, which can meet the transmission requirements of high-speed media streams.
- an embodiment of the present application provides a transmission interface, including a first port, a first expansion port, and a second expansion port.
- the first expansion port and the second expansion port are located at both ends of the first port, and the first port has Universal serial bus USB interface function; wherein, the first expansion port includes at least a pair of first differential transmission line terminals, the second expansion port includes at least a pair of second differential transmission line terminals, the first differential transmission line terminal supports the first data signal
- the first data signal includes multimedia data
- the second differential transmission line terminal supports bidirectional transmission of the first data signal.
- the first port with the USB interface function is expanded to increase the differential transmission line terminal for transmitting multimedia data, thereby increasing the transmission channel of the high-speed multimedia stream and increasing the data signal transmission bandwidth.
- the first expansion port further includes a first ground terminal and at least one first power terminal
- the second expansion port further includes a second ground terminal and at least one second power terminal
- the transmission interface increases the power supply capacity by adding power terminals for power supply.
- the first power terminal includes two adjacent and electrically connected standard power terminals; the second power terminal includes two adjacent and electrically connected standard power terminals.
- both the first power terminal and the second power terminal can be realized by using two standard power terminals for electrical connection. Streaming capability to further increase the power supply capability of the transmission interface.
- the space occupied by the first power terminal includes a space occupied by two adjacent standard power terminals and a gap between two adjacent standard power terminals
- the second power terminal occupies The space includes the space occupied by two adjacent standard power terminals and the gap between two adjacent standard power terminals.
- the power terminal in the USB Type-C interface is a standard power terminal.
- the two adjacent standard power terminals and the gap between the two adjacent standard power terminals together form a power terminal, that is, the original
- the non-current-passing part (insulation grid) between two adjacent standard power terminals has the current-passing capacity after being opened.
- the first power terminal and the second power terminal can achieve the current flow effect of the six power terminals to a certain extent.
- the design of adding power terminals adopted in the above solution makes the power supply capacity of the aggregate interface possible to reach 2.5 times the power supply capacity of the original USB Type-C interface, and may reach a power supply capacity of 250W.
- the other terminals occupy the same space, or the metal conductors used in the terminals have the same size.
- the space occupied by the other terminals is equal to the space occupied by the standard power terminal, or in other words, the size of the metal conductor used for the other terminals is equal to the standard power terminal. The size of the metal conductor of the terminal.
- the first port is a USB interface, and the first port supports the connection of a plug adapted to the USB interface.
- the first port part of the transmission interface is compatible with the plug connected to the USB interface, so that the transmission interface is compatible with the plug of the existing USB interface and compatible with the existing electronic equipment with the USB interface.
- the first port includes a first control signal terminal and a second control signal terminal; wherein the first control signal terminal supports two-way transmission of control signals of the first protocol; the second control signal terminal supports the first control signal terminal. Two-way transmission of protocol control signals.
- the two transmission control signal terminals of the multiplexed USB interface can be used to transmit the control signal of the first protocol, so that the transmission interface of the present application can support the newly defined protocol, and thus the terminal utilization can be improved.
- the first control signal terminal and the second control signal terminal are arranged rotationally symmetrically in the first port.
- the first control signal terminal also supports two-way transmission of at least one of the following: USB protocol control signals, high-definition multimedia interface HDMI protocol control signals, or digital video interface DP protocol control signals; second The control signal terminal also supports two-way transmission of at least one of the following: a control signal of the USB protocol, a control signal of the HDMI protocol, or a control signal of the DP protocol.
- the two transmission control signal terminals of the multiplexed USB interface can be used to transmit control signals of the first protocol, and can also be used to transmit control signals of other protocols to improve compatibility.
- two terminals for transmitting control signals support control signals of the HDMI protocol, and are compatible with electronic devices that use HDMI, so that electronic devices that use HMDI and electronic devices that use the transmission interface provided by this application can perform signal transmission.
- two terminals for transmitting control signals support the control signals of the DP protocol and the control signals of the USB protocol, and are compatible with electronic devices that use USB, so that the electronic devices that use the USB interface and the electronic devices that use the transmission interface provided by this application can perform the USB protocol And DP control signal transmission.
- the first port includes a pair of third differential transmission line terminals and a pair of fourth differential transmission line terminals; wherein, the third differential transmission line terminal supports the bidirectional transmission of the first data signal or supports the data signal of the USB protocol
- the fourth differential transmission line terminal supports the two-way transmission of the first data signal or supports the reception of the data signal of the USB protocol.
- the differential transmission line terminal of the multiplexed USB interface is used to transmit the first data signal or the data signal of the USB protocol to improve compatibility.
- the third differential transmission line terminal and the fourth differential transmission line terminal support the transmission of the first data signal.
- the first data signal includes a data signal of the HDMI protocol, a data signal of the DP protocol, or a data signal of the first protocol.
- the third differential transmission line terminal and the fourth differential transmission line terminal support data signals of the HDMI protocol and are compatible with electronic devices that use HDMI, so that electronic devices that use HMDI and electronic devices that use the transmission interface provided by this application can transmit data signals .
- the third differential transmission line terminal and the fourth differential transmission line terminal support the data signal of DP protocol and the data signal of USB protocol, and can be compatible with electronic devices that use USB, so that electronic devices that use the USB interface are compatible with those that use the transmission interface provided by this application.
- Electronic equipment is capable of data signal transmission.
- the first expansion port further includes a detection terminal for detecting the type of the transmission cable connected to the transmission interface.
- a detection terminal is added to the expansion port, and the type of transmission cable detected by the detection terminal compares the first differential transmission line terminal, the second differential transmission line terminal, the third differential transmission line terminal, and the fourth differential transmission line mentioned above.
- the control of the data signal transmitted by the terminal and the control of the control signal transmitted by the first control signal terminal and the second control signal terminal enable compatibility with electronic devices using HDMI or USB interfaces.
- the type of the transmission cable includes at least one of the following: the interfaces used by the plugs at both ends are the transmission cables of the first type of the transmission interface; the interfaces used by the plugs at the first end are all Said transmission interface, the interface used by the second end plug is HDMI, and the interface used by the third end plug is a second type transmission cable with a USB interface; the interface used by one end plug is the transmission interface, and the other end plug adopts the interface It is a third-type transmission cable with a USB interface; the interface used by one end plug is the transmission interface, and the other end plug is a fourth-type HDMI transmission cable.
- the type of transmission cable connected to the transmission interface detected by the detection terminal is used to indicate the type of control signal transmitted by the first control signal terminal and the second control signal terminal; the transmission interface detected by the detection terminal is connected The type of the transmission cable used to indicate the type of the data signal transmitted by the third differential transmission line terminal and the fourth differential transmission line terminal; and the type of the transmission cable connected to the transmission interface indicated by the detection terminal, used to indicate the first differential transmission line The type of the data signal transmitted by the terminal and the second differential transmission terminal.
- the detection terminal After the detection terminal detects the type of the transmission cable, it can generate an indication signal corresponding to the type of the transmission cable.
- the indication signal is used to indicate the control signal transmitted by the first control signal terminal and the second control signal terminal.
- the type is also used to indicate the type of the data signal transmitted by the first differential transmission line terminal, the second differential transmission terminal, the third differential transmission line terminal, and the fourth differential transmission line terminal.
- a detection terminal is added to the expansion port, and the type of transmission cable detected by the detection terminal compares the first differential transmission line terminal, the second differential transmission line terminal, the third differential transmission line terminal, and the fourth differential transmission line mentioned above.
- the control of the data signal transmitted by the terminal and the control of the control signal transmitted by the first control signal terminal and the second control signal terminal enable compatibility with electronic devices using HDMI or USB interfaces.
- the first control signal terminal when the detection terminal indicates that the transmission interface is connected to the transmission cable of the first type, the first control signal terminal supports the bidirectional transmission of the control signal of the first protocol, and the second control signal terminal supports the transmission of the first protocol. Two-way transmission of the control signal; or, when the detection terminal indicates that the transmission interface is connected to the third type of transmission cable, the first control signal terminal supports the two-way transmission of the control signal of the USB protocol or the control signal of the DP protocol, and the second control signal terminal Support the bidirectional transmission of control signals of the USB protocol or the control signals of the DP protocol, the first control signal terminal and the second control signal terminal belong to the same protocol; or, when the detection terminal indicates that the transmission interface is connected to the fourth type of transmission In the case of a cable, the first control signal terminal supports two-way transmission of control signals of the HDMI protocol, and the second control channel terminal supports two-way transmission of control signals of the HDMI protocol.
- the first port further includes a pair of fifth differential transmission line terminals and a pair of sixth differential transmission line terminals.
- Both the fifth differential transmission line terminal and the sixth differential transmission line terminal support bidirectional transmission of data signals of the USB protocol.
- the transmission rate of the fifth differential transmission line terminal and the transmission rate of the sixth differential transmission line terminal are both the first rate
- the transmission rate of the third differential transmission line terminal and the transmission rate of the fourth differential transmission line terminal Both are the second rate, and the first rate is less than or equal to the second rate;
- the first control signal terminal supports the two-way transmission of the control signal of the HDMI protocol
- the second control signal terminal supports the two-way transmission of the control signal of the HDMI protocol
- the fifth differential transmission line The terminal supports two-way transmission of data signals of the USB protocol
- the sixth differential transmission line terminal supports two-way transmission of control signals of the HDMI protocol
- the fifth differential transmission line terminal supports two-way transmission of control signals of the HDMI protocol
- the sixth differential transmission line terminal supports USB Two-way transmission of protocol data signals.
- the control signal of the HDMI protocol includes four types
- the first control signal terminal, the second control signal terminal, and a pair of fifth differential transmission line terminals or a pair of sixth differential transmission line terminals are combined with a pair of differential transmission line terminals.
- a pair of fifth differential transmission line terminals or a pair of sixth differential transmission line terminals can also be used to transmit data signals of the USB protocol, which further realizes that the transmission interface provided in the embodiments of the present application can be compatible with electronic devices using HDMI At the same time of connection, it is also compatible with the connection of electronic devices with USB interface.
- the third differential transmission line terminal supports the bidirectional transmission of the first data signal
- the fourth differential transmission line terminal supports the bidirectional transmission of the first data signal.
- Transmission and the first data signal includes at least one of a data signal of the first protocol, a data signal of the HDMI protocol, or a data signal of the DP protocol; or, when the detection terminal detects that the transmission interface is connected to a third type of transmission cable,
- the third differential transmission line terminal indicates the bidirectional transmission of the data signal of the DP protocol or the transmission of the data signal of the USB protocol
- the fourth differential transmission line terminal supports the bidirectional transmission of the data signal of the DP protocol or the reception of the data signal of the USB protocol
- the signal includes the data signal of the DP protocol; or, when the detection terminal detects that the transmission interface is connected to the fourth type of transmission cable, the third differential transmission line terminal supports the two-way transmission of the data signal of the HDMI protocol, and the fourth differential transmission line terminal
- the first port further includes a pair of seventh differential transmission line terminals and a pair of eighth differential transmission line terminals; when the detection terminal detects that the transmission interface is connected to the second type transmission cable, the third differential transmission line terminal
- the fourth differential transmission line terminal supports two-way transmission of data signals of the HDMI protocol
- the seventh differential transmission line terminal supports the transmission of data signals of the USB protocol
- the eighth differential transmission line terminal supports the reception of data signals of the USB protocol.
- the first data signal includes HDMI Protocol data signal.
- the first expansion port and the second expansion port are rotationally symmetrically arranged on both sides of the first port.
- the first port is a USB Type C interface.
- an embodiment of the present application provides a transmission cable, including a first plug, a second plug, and a first transmission line;
- the interface used by the first plug is a transmission interface
- the transmission interface includes a first port, a first extension Port and a second expansion port, the first expansion port and the second expansion port are located at both ends of the first port, and the first port has the function of a universal serial bus USB interface;
- the first An expansion port includes at least a pair of first differential transmission line terminals
- the second expansion port includes at least a pair of second differential transmission line terminals.
- the first differential transmission line terminals support bidirectional transmission of a first data signal.
- the signal includes multimedia data
- the second differential transmission line terminal supports two-way transmission of the first data signal
- the interface adopted by the second plug is the transmission interface, or the universal serial bus USB interface, or the high-definition multimedia interface HDMI .
- the electronic device including the transmission interface can be connected to electronic devices of different other interface types.
- the transmission cable further includes a third plug and a second transmission line; the interface used by the third plug is HDMI; and the second transmission line is used to connect the third plug And the first plug.
- the first expansion port further includes a first ground terminal and at least one first power terminal
- the second expansion port further includes a second ground terminal and at least one second power terminal.
- the transmission interface increases the power supply capacity by adding power supply terminals.
- the space occupied by the first power terminal is two adjacent standard power terminals; the space occupied by the second power terminal is two adjacent standard power terminals.
- the space occupied by the first power terminal further includes a gap between adjacent standard power terminals
- the space occupied by the second power terminal further includes a gap between adjacent standard power terminals.
- the power terminal in the USB interface is a standard power terminal.
- the interfaces used by the first plug and the second plug are both transmission interfaces, at least one first power terminal, at least one second power terminal, and power terminals included in the first port included in the transmission interface At least one of the power supply terminals is used for power supply.
- the electronic device coupled to the first plug can supply power to the electronic device coupled to the second plug through at least one first power terminal, at least one second power terminal, and at least one of the power terminals included in the first port.
- the second The plug-coupled electronic device can supply power to the first plug-coupled electronic device through at least one of the at least one first power terminal, the at least one second power terminal, and the power terminals included in the first port.
- the first expansion port further includes a detection terminal.
- the electronic device coupled to the first plug can detect the interface type adopted by the second plug through the detection terminal, that is, detect the type of the current transmission cable.
- the first port further includes a pair of third differential transmission line terminals and a pair of fourth differential transmission line terminals, and the third differential transmission line terminal supports the two-way transmission of the first data signal and the sending of the data signal of the USB protocol.
- the fourth differential transmission line terminal supports the bidirectional transmission of the first data signal and the reception of the data signal of the USB protocol.
- the first port also includes a first control signal terminal and a second control signal terminal, and supports the control signal of the first protocol, the control signal of the HDMI protocol, the control signal of the DP protocol, or the control signal of the USB protocol.
- the interface used by the second plug is a transmission interface
- at least a pair of first differential transmission line terminals, at least a pair of second differential transmission line terminals, a pair of third differential transmission line terminals, and a pair of fourth differential transmission line terminals The transmission line terminal is used to transmit a first data signal
- the first data signal includes one of a data signal of the first protocol, a data signal of the HDMI protocol, or a data signal of the DP protocol.
- the first control signal terminal and the second control signal terminal are used to transmit the control signal of the first protocol.
- the first control signal terminal and the second control signal terminal are used to realize that the electronic device coupled to the first plug sends the control signal of the first protocol to the electronic device coupled to the second plug, or to realize the electronic device coupled to the second plug to send The electronic device coupled to the first plug sends a control signal of the first protocol.
- the interface used by the second plug is HDMI
- at least a pair of first differential transmission line terminals, at least a pair of second differential transmission line terminals, a pair of third differential transmission line terminals, and a pair of fourth differential transmission lines The terminal is used to transmit the data signal of the HDMI protocol.
- At least one pair of first differential transmission line terminals, at least one pair of second differential transmission line terminals, a pair of third differential transmission line terminals, and a pair of fourth differential transmission line terminals are used to realize the electronic device coupling the first plug to the second plug.
- the device sends the HDMI protocol data signal, or the electronic device used to realize the second plug coupling sends the HDMI data signal to the electronic device coupled with the first plug.
- the first control signal terminal and the second control signal terminal are used to transmit the control signal of the HDMI protocol.
- the first port also includes a pair of fifth differential transmission line terminals and a pair of sixth differential transmission line terminals.
- the fifth differential transmission line terminal is used to send or receive control signals of the HDMI protocol; or the sixth differential transmission line terminal is used to send or receive control signals of the HDMI protocol.
- the first control signal terminal and the second control signal terminal, a pair of fifth differential transmission line terminals are used to realize that the electronic device coupled to the first plug sends the control signal of the first protocol to the electronic device coupled to the second plug, or is used to realize The electronic device coupled to the second plug sends a control signal of the first protocol to the electronic device coupled to the first plug.
- the first control signal terminal and the second control signal terminal, and a pair of fifth differential transmission line terminals are used to realize that the electronic device coupled with the first plug sends the control signal of the first protocol to the electronic device coupled with the second plug, or The electronic device coupled to the second plug sends a control signal of the first protocol to the electronic device coupled to the first plug.
- the interface used by the second plug is a USB interface
- at least a pair of first differential transmission line terminals, at least a pair of second differential transmission line terminals, a pair of third differential transmission line terminals, and a pair of fourth differential transmission line terminals The transmission line terminal is used to transmit the data signal of the DP protocol.
- the first control signal terminal and the second control signal terminal are used to transmit the control signal of the DP protocol.
- the interface used by the second plug is USB
- at least a pair of first differential transmission line terminals, at least a pair of second differential transmission line terminals, a pair of third differential transmission line terminals, and a pair of fourth differential transmission lines The terminal is used to transmit the data signal of the USB protocol.
- the first control signal terminal and the second control signal terminal are used for transmitting control signals of the USB protocol.
- the interface used by the second plug is a USB interface
- the interface used by the third plug is HDMI, at least one pair of first differential transmission line terminals, at least one pair of second differential transmission line terminals, and a pair of third differential terminals.
- the transmission line terminal and the pair of fourth differential transmission line terminals are used for transmitting HDMI protocol data signals.
- the first port also includes a pair of seventh differential transmission line terminals and a pair of eighth differential transmission line terminals.
- the seventh differential transmission line terminal is used for sending USB protocol data signals
- the eighth differential transmission line terminal is used for receiving USB protocol data signals.
- an embodiment of the present application provides an electronic device, including the transmission interface described in the first aspect or any design of the first aspect.
- an embodiment of the present application provides an electronic device, such as a first electronic device.
- the first electronic device includes a transmission interface, the first electronic device is coupled with the second electronic device through the transmission interface; the transmission interface includes a first port, a first expansion port and a second expansion port, the first expansion port and the second expansion port are located in the At both ends of a port, the first port has the function of a universal serial bus USB interface, the first expansion port includes at least a pair of first differential transmission line terminals, and the second expansion port includes at least a pair of second differential transmission line terminals.
- the electronic device also includes a processing device.
- the processing device is used to obtain the first data signal to be sent, and send the first data signal to the second electronic device through at least one pair of differential transmission line terminals, and the at least one pair of differential transmission line terminals includes at least one pair of first differential transmission line terminals and/or At least one pair of second differential transmission line terminals, the first data signal includes first multimedia data; or, the second data signal from the second electronic device is received through at least one pair of differential transmission line terminals, and the second data signal includes the second multiple Media data.
- the first expansion port further includes a ground terminal and at least one first power terminal
- the second expansion port further includes a ground terminal and at least one second power terminal
- the first power terminal includes two adjacent and electrically connected standard power terminals; the second power terminal includes two adjacent and electrically connected standard power terminals.
- both the first power terminal and the second power terminal can be realized by using two standard power terminals for electrical connection. Streaming capability to further increase the power supply capability of the transmission interface.
- the space occupied by the first power terminal includes a space occupied by two adjacent standard power terminals and a gap between two adjacent standard power terminals
- the space occupied by the second power terminal It includes the space occupied by two adjacent standard power terminals and the gap between the two adjacent standard power terminals.
- the power terminal in the USB Type-C interface is a standard power terminal.
- the gap between two adjacent standard power terminals is opened to form a power terminal, that is, the non-current-passing part (insulation grid) of the original two adjacent standard power terminal spacing, after being opened, has Flow capacity.
- the first power terminal and the second power terminal can achieve the current flow effect of the six power terminals to a certain extent.
- the design of adding power terminals adopted in the above solution makes the power supply capacity of the aggregate interface possible to reach 2.5 times the power supply capacity of the original USB Type-C interface, and may reach a power supply capacity of 250W.
- the other terminals occupy the same space, or the metal conductors used in the terminals have the same size.
- the processing device is further configured to: when the first electronic device is connected to a power source and the second electronic device is not connected to a power source, pass through at least one first power terminal and at least one second power terminal And at least one of the power terminals included in the first port supplies power to the second electronic device; or, when the first electronic device is not connected to a power source and the second electronic device is connected to a power source, at least one first power terminal, The at least one second power terminal and at least one of the power terminals included in the first port receives power from the second electronic device.
- the transmission interface of the first electronic device is connected to the second electronic device through a transmission cable
- the first expansion port further includes a detection terminal, a pair of third differential transmission line terminals, and a pair of fourth differential transmission line terminals
- the processing device is also used to: before sending the first data signal to the second electronic device through a pair of differential transmission line terminals, control the transmission of a pair of differential transmission line terminals according to the type of transmission cable connected to the transmission interface detected by the detection terminal
- the processing device is also used to: before receiving the first data signal from the second electronic device through a pair of differential transmission line terminals, according to the type of transmission cable connected to the transmission interface detected by the detection terminal , Controlling the type of data signal transmitted by at least one pair of differential transmission line terminals; wherein the at least one pair of differential transmission line terminals specifically includes at least a pair of first differential transmission line terminals, at least a pair of second differential transmission line terminals, and a pair of third differential transmission line terminals Or at least one of a pair of fourth differential
- the first port further includes a first control signal terminal and a second control signal terminal; the processing device is also used to control the first control signal according to the type of the transmission cable connected to the transmission interface detected by the detection terminal The type of control signal transmitted by the signal terminal and the second control signal terminal.
- the type of the transmission cable includes at least one of the following: the interfaces used by the plugs at both ends are the transmission cables of the first type of the transmission interface; the interfaces used by the plugs at the first end are all Said transmission interface, the interface used by the second end plug is HDMI, and the interface used by the third end plug is a second type transmission cable with a USB interface; the interface used by one end plug is the transmission interface, and the other end plug adopts the interface It is a third-type transmission cable with a USB interface; the interface used by one end plug is the transmission interface, and the other end plug is a fourth-type HDMI transmission cable.
- the processing device controls the type of the data signal sent by the at least one pair of differential transmission line terminals according to the type of the transmission cable connected to the transmission interface detected by the detection terminal, it is specifically used for:
- the transmission cable connected to the transmission interface detected by the terminal is a transmission cable of the first type
- it passes through at least a pair of first differential transmission line terminals, at least a pair of second differential transmission line terminals, a pair of third differential transmission line terminals, and a pair of first differential transmission line terminals.
- the four-differential transmission line terminal sends the first data signal to the second electronic device or receives the second data signal from the second electronic device.
- Both the first data signal and the second data signal include the data signal of the first protocol and the data signal of the HDMI protocol. , Or one of the data signals of the DP protocol.
- the processing device controls the type of the data signal sent by the at least one pair of differential transmission line terminals according to the type of the transmission cable connected to the transmission interface detected by the detection terminal, it is specifically used for:
- the transmission cable connected to the transmission interface detected by the terminal is a transmission cable of the third type
- the first data signal is sent or received to the second electronic device through at least one pair of first differential transmission line terminals and at least one pair of second differential transmission line terminals
- the second data signal from the second electronic device, the first data signal and the second data signal are all data signals of the DP protocol.
- the above design is compatible with the USB interface and realizes the transmission of DP protocol data signals.
- the processing device controls the type of the data signal sent by the at least one pair of differential transmission line terminals according to the type of the transmission cable connected to the transmission interface detected by the detection terminal, it is specifically used to:
- the transmission cable connected to the transmission interface detected by the terminal is a fourth type transmission cable, at least one pair of first differential transmission line terminals, at least one pair of second differential transmission line terminals, at least one pair of third differential transmission line terminals, and at least one
- the fourth differential transmission line terminal sends the first data signal to the second electronic device or receives the second data signal from the second electronic device, and the first data signal and the second data signal are both HDMI protocol data signals.
- the above design is compatible with HDMI connection and realizes the transmission of HDMI protocol data signals.
- the processing device controls the type of the data signal sent by the at least one pair of differential transmission line terminals according to the type of the transmission cable connected to the transmission interface detected by the detection terminal, it is specifically used for:
- the transmission cable connected to the transmission interface of the first electronic device detected by the terminal is a transmission cable of the second type, at least a pair of first differential transmission line terminals, at least a pair of second differential transmission line terminals, and at least a pair of third differential
- the transmission line terminal and at least a pair of fourth differential transmission line terminals send the first data signal to the second electronic device or receive the second data signal from the second electronic device, the first data signal and the second data signal are both HDMI protocol data signals
- the data signal wherein the first end plug is coupled to the first electronic device, the second end plug is coupled to the
- the above design is compatible to connect HDMI and USB, and realizes the synchronous transmission of HDMI protocol data signal and USB protocol data signal.
- the type of control signal transmitted by the first control signal terminal and the second control signal terminal is controlled, including: when the detection terminal detects the transmission
- the transmission cable connected to the interface is a transmission cable of the first type.
- the control signal of the first protocol is sent to the second electronic device or the first protocol is received from the second electronic device.
- Protocol control signal or, when the transmission cable connected to the transmission interface detected by the detection terminal is a third type transmission cable, the DP protocol is sent to the second electronic device through the first control signal terminal and the second control signal terminal The control signal or the DP protocol control signal from the second electronic device is received; or, when the transmission cable connected to the transmission interface detected by the detection terminal is a transmission cable of the third type, pass the first control signal terminal and the second control signal Terminal, sending a USB protocol control signal to the second electronic device or receiving a USB protocol control signal from the second electronic device; or, when the transmission cable connected to the transmission interface detected by the detection terminal is a fourth type transmission cable, Through the first control signal terminal and the second control signal terminal, the control signal of the HDMI protocol is sent to the second electronic device or the control signal of the HDMI protocol is received from the second electronic device.
- the first port further includes a pair of fifth differential transmission line terminals and a pair of sixth differential transmission line terminals, and the first control signal is controlled according to the type of transmission cable connected to the transmission interface detected by the detection terminal
- the types of control signals transmitted by the terminal and the second control signal terminal include:
- the transmission cable connected to the transmission interface detected by the detection terminal is a second type transmission cable, wherein the first end plug is coupled to the first electronic device, and the second end plug is coupled to the second electronic device.
- the third end plug is coupled to the third electronic device; sending the HDMI protocol control signal to the second electronic device through the first control signal terminal, the second control signal terminal, and a pair of fifth differential transmission line terminals; or Receive the HDMI protocol control signal from the second electronic device.
- the control signal of the HDMI protocol is sent to the second electronic device or the control signal of the HDMI protocol is received from the second electronic device.
- the embodiments of the present application provide a signal transmission method.
- the method is applied to a first electronic device configured with a transmission interface.
- the first electronic device is coupled to the second electronic device through the transmission interface;
- the transmission interface includes a first port, Expansion port and second expansion port.
- the first expansion port and the second expansion port are located at both ends of the first port.
- the first port has the function of a universal serial bus USB interface.
- the first expansion port includes at least a pair of first differential transmission lines
- the second expansion port includes at least a pair of second differential transmission line terminals; the above method includes: acquiring the first data signal to be sent, and sending the first data signal to the second electronic device through at least one pair of differential transmission line terminals, at least one pair
- the differential transmission line terminal includes at least a pair of first differential transmission line terminals and/or at least a pair of second differential transmission line terminals, and the first data signal includes first multimedia data; or, at least one pair of differential transmission line terminals receives data from the second electronic
- the second data signal of the device, the second data signal includes second multimedia data.
- the first expansion port further includes a ground terminal and at least one power terminal
- the second expansion port further includes a ground terminal and at least one power terminal
- the above method further includes: when the first electronic device is connected to the power source, And when the second electronic device is not connected to a power source, the second electronic device is powered by at least one of the at least one power terminal of the first expansion port, the at least one power terminal of the second expansion port, and the power terminal included in the first port
- the first electronic device is not connected to a power source, and the second electronic device is connected to a power source, through at least one power terminal of the first expansion port, at least one power terminal of the second expansion port, and power terminals included in the first port At least one of the power supply terminals in receives power from the second electronic device.
- the transmission interface of the first electronic device is connected to the second electronic device through a transmission cable
- the first expansion port further includes a detection terminal, at least a pair of third differential transmission line terminals, and at least a pair of fourth differential Transmission line terminal; before sending the first data signal to the second electronic device through at least a pair of differential transmission line terminals, the above method further includes: controlling the transmission of at least one pair of differential transmission line terminals according to the type of transmission cable connected to the transmission interface detected by the detection terminal Or, before receiving the first data signal from the second electronic device through at least one pair of differential transmission line terminals, the above method further includes: controlling at least the type of transmission cable connected to the transmission interface detected by the detection terminal The type of data signal transmitted by a pair of differential transmission line terminals; wherein the at least one pair of differential transmission line terminals specifically includes at least a pair of first differential transmission line terminals, at least a pair of second differential transmission line terminals, at least a pair of third differential transmission line terminals, or at least At least one pair of
- the first port further includes a first control signal terminal and a second control signal terminal; the method further includes: controlling the first control signal terminal according to the type of the transmission cable connected to the transmission interface detected by the detection terminal And the type of control signal transmitted by the second control signal terminal.
- the type of the transmission cable includes at least one of the following: the interfaces used by the plugs at both ends are the transmission cables of the first type of the transmission interface; the interfaces used by the plugs at the first end are all Said transmission interface, the interface used by the second end plug is HDMI, and the interface used by the third end plug is a second type transmission cable with a USB interface; the interface used by one end plug is the transmission interface, and the other end plug adopts the interface It is a third-type transmission cable with a USB interface; the interface used by one end plug is the transmission interface, and the other end plug is a fourth-type HDMI transmission cable.
- the type of the data signal sent by the at least one pair of differential transmission line terminals is controlled, including: when the detection terminal detects the transmission interface connected to the transmission line
- the cable is the first type of transmission cable, it passes through at least one pair of first differential transmission line terminals, at least one pair of second differential transmission line terminals, at least one pair of third differential transmission line terminals, and at least one pair of fourth differential transmission line terminals to the second
- the electronic device sends a first data signal or receives a second data signal from a second electronic device. Both the first data signal and the second data signal include the data signal of the first protocol, the data signal of the HDMI protocol, or the data signal of the DP protocol.
- the transmission cable connected to the transmission interface detected by the detection terminal is a transmission cable of the third type
- the electronic device sends a first data signal or receives a second data signal from a second electronic device, the first data signal and the second data signal are both DP protocol data signals; or, the transmission line connected to the transmission interface detected by the detection terminal
- the cable is a fourth type of transmission cable, it passes through at least one pair of first differential transmission line terminals, at least one pair of second differential transmission line terminals, at least one pair of third differential transmission line terminals, and at least one pair of fourth differential transmission line terminals to the second
- the electronic device sends a first data signal or receives a second data signal from a second electronic device, and the first data signal and the second data signal are both HDMI protocol data signals.
- the type of the data signal transmitted by the at least one pair of differential transmission line terminals is controlled, including: when the detection terminal detects the transmission of the first electronic device When the transmission cable connected to the interface is a second type transmission cable, it passes through at least a pair of first differential transmission line terminals, at least a pair of second differential transmission line terminals, at least a pair of third differential transmission line terminals, and at least a pair of fourth differential transmission line terminals.
- the transmission line terminal sends a first data signal to the second electronic device or receives a second data signal from the second electronic device, the first data signal and the second data signal are both HDMI protocol data signals; and one included through the first port Send a USB protocol data signal to the third electronic device to the seventh differential transmission line terminal, or receive a USB protocol data signal from the third electronic device through a pair of eighth differential transmission line terminals included in the first port; wherein the first The end plug is coupled to the first electronic device, the second end plug is coupled to the second electronic device, and the third end plug is coupled to the third electronic device.
- the type of control signal transmitted by the first control signal terminal and the second control signal terminal is controlled, including; when the detection terminal detects the transmission
- the transmission cable connected to the interface is a transmission cable of the first type.
- the control signal of the first protocol is sent to the second electronic device or the first protocol is received from the second electronic device.
- Protocol control signal or, when the transmission cable connected to the transmission interface detected by the detection terminal is a third type transmission cable, the DP protocol is sent to the second electronic device through the first control signal terminal and the second control signal terminal The control signal or the DP protocol control signal from the second electronic device is received; or, when the transmission cable connected to the transmission interface detected by the detection terminal is a transmission cable of the third type, pass the first control signal terminal and the second control signal Terminal, sending a USB protocol control signal to the second electronic device or receiving a USB protocol control signal from the second electronic device; or, when the transmission cable connected to the transmission interface detected by the detection terminal is a fourth type transmission cable, Through the first control signal terminal and the second control signal terminal, the control signal of the HDMI protocol is sent to the second electronic device or the control signal of the HDMI protocol is received from the second electronic device.
- the first port further includes a pair of fifth differential transmission line terminals and a pair of sixth differential transmission line terminals, and the first control signal is controlled according to the type of transmission cable connected to the transmission interface detected by the detection terminal
- the type of the control signal transmitted by the terminal and the second control signal terminal includes; when the transmission cable connected to the transmission interface detected by the detection terminal is a second type transmission cable, wherein the first end plug is coupled to the first Electronic device, the second end plug is coupled to the second electronic device, and the third end plug is coupled to the third electronic device; through a first control signal terminal, a second control signal terminal, a pair of fifth
- the differential transmission line terminal sends the control signal of the HDMI protocol to the second electronic device or receives the control signal of the HDMI protocol from the second electronic device.
- the control signal of the HDMI protocol is sent to the second electronic device or the control signal of the HDMI protocol is received from the second electronic device.
- the present application provides a computer program product, the computer program product includes a computer instruction, and when the computer instruction is executed, the method in the foregoing fifth aspect or any possible implementation manner of the fifth aspect is executed.
- the present application provides a computer-readable storage medium that stores computer instructions.
- the computer instructions When the computer instructions are executed, the foregoing fifth aspect or any possible implementation manner of the fifth aspect The method is executed.
- FIG. 1 is a schematic diagram of HDMI pins
- Figure 2 is a schematic diagram of USB Type-C pins
- 3A is a schematic diagram of the pins of the first aggregate interface provided by an embodiment of the application.
- 3B is a schematic diagram of the pins of the second aggregate interface provided by an embodiment of the application.
- 3C is a schematic diagram of a third aggregate interface pin provided by an embodiment of the application.
- FIG. 4 is a schematic diagram of a possible design of a differential transmission line terminal supporting bidirectional transmission provided by an embodiment of the application;
- FIG. 5 is a schematic diagram of another possible design of a differential transmission line terminal supporting bidirectional transmission provided by an embodiment of the application;
- FIG. 6 is a schematic diagram of a power supply pin provided by an embodiment of the application.
- FIG. 7 is a schematic diagram of functions included in a control signal of a possible first protocol provided by an embodiment of this application.
- FIG. 8 is a schematic diagram of functions included in another possible control signal of the first protocol provided by an embodiment of this application.
- FIG. 9 is a schematic diagram of a fourth aggregate interface pin provided by an embodiment of the application.
- FIG. 10 is a schematic diagram of a possible design of a fourth differential transmission line terminal provided by an embodiment of the application.
- FIG. 11 is a schematic diagram of a possible design of a third differential transmission line terminal provided by an embodiment of the application.
- FIG. 12 is a schematic diagram of a possible design of the first control signal terminal provided by an embodiment of the application.
- FIG. 13 is a schematic diagram of a possible design of a second control signal terminal provided by an embodiment of the application.
- FIG. 14 is a schematic diagram of a first type of transmission cable provided by an embodiment of this application.
- 15 is a schematic diagram of a second type of transmission cable provided by an embodiment of this application.
- FIG. 16 is a schematic diagram of a third type of transmission cable provided by an embodiment of the application.
- FIG. 17 is a schematic diagram of a fourth type of transmission cable provided by an embodiment of the application.
- FIG. 18 is a schematic diagram of Scenario One provided by an embodiment of the application.
- FIG. 19 is a schematic diagram of Scenario 2 provided by an embodiment of this application.
- FIG. 21 is a schematic diagram of Scenario 4 provided by an embodiment of this application.
- At least one item (a) refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a).
- at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .
- the electronic device involved in the embodiments of the present application may be a display (or called a display screen), a TV, a projector, or a smart screen.
- the smart screen can be a home audio-visual entertainment center, but also an information sharing center, a control management center, and a multi-device interaction center.
- the electronic device may also be a video playback device, such as a set-top box, a separate docking station (DOCK), or a personal computer (PC), etc.
- Electronic equipment can also be referred to as terminal equipment. Terminal equipment may also be referred to as user equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device.
- the terminal device may be a cellular phone, a cordless phone, a personal digital assistant (PDA), a handheld device with a wireless communication function, a computing device or other processing devices of a wireless modem, a vehicle-mounted device, a wearable device, etc.
- PDA personal digital assistant
- HDMI is an interface for transmitting uncompressed digital high-definition multimedia (video and/or audio).
- TMDS transition minimized differential signaling
- TMDS technology is a technology that uses the voltage difference between two pins to transmit signals, that is, differential transmission technology.
- HDMI currently has three physical specifications, namely HDMI Type-A, HDMI Type-B, and HDMI Type-C.
- HDMI Type-A includes 19 pins. Pins can also be called pins or terminals. The function defined by each pin is shown in Figure 1. It can be seen that HDMI Type-A has 8 pins for transmitting HDMI protocol data signals, that is, TMDS data signals.
- the TMDS data signal includes TMDS data 0, TMDS data 1, TDMS data 2, and TDMS clock.
- the pin numbers of the 8 pins are 1, 3, 4, 6, 7, 9, 10, and 12.
- the 8 pins form 4 pairs of differential transmission line terminals and are connected to 4 pairs of differential transmission lines (or called differential signal lines).
- HDMI Type-A also includes shield pins, power supply pins, ground pins, and pins for transmitting control signals. The shield pin is used to prevent interference between signals and reduce electromagnetic radiation.
- Type-A The widest point of Type-A is 14mm and the height is 4.55mm.
- Type B has 29 pins and the size is larger.
- Type-C is similar to Type-A, there are 19 pins, only difference in size, the interface size of Type-C is 10.5mm ⁇ 2.5mm.
- USB interface is a serial bus standard and a technical specification for input and output interfaces. There are currently three physical specifications for the USB interface, which are called USB Type-A, USB Type-B, and USB Type-C. USB Type-A is generally used in personal computers. USB Type-B can generally be used for printers, etc. USB Type-C is generally suitable for mobile portable terminal equipment.
- USB Type-C includes 24 pins.
- the pin diagram of the USB Type-C interface is shown in Figure 2. It can be seen that USB Type-C includes 4 pairs of differential transmission line pins, which are used to realize the function of TX/RX, including two pairs of differential transmission line pins (or differential data pins) for sending data signals: A2 (TX1+) and A3(TX1-), B2(TX2+) and B3(TX2-); and two pairs of differential transmission line pins (or differential data pins) for receiving data signals: B11(RX1+) and B10( RX1-), A11 (RX2+) and A10 (RX2-).
- USB Type-C also includes two channel configuration (channel configuration, CC) signal pins for function negotiation. For example, it can be used to determine the direction in which the device is inserted: forward or reverse. It can also be used to negotiate the power supply function, replacement mode or peripheral mode on the interface. Peripheral mode supports the transmission of analog audio or debugging signals through the USB Type-C interface. The replacement mode supports the USB Type-C interface to transmit compressed or lossless video signals, such as data signals of the DP protocol. USB Type-C may also include pins for transmitting other signals, such as pins for sideband use (SBU) signals. See Table 2 for details.
- SBU sideband use
- TX/RX (TX1, TX2, RX1 and RX2) are the differential data signals of USB3.1.
- TX1 is used to represent the differential data signal (TX1+/-) transmitted by a pair of differential transmission line terminals.
- RX1 is used to represent RX1+/-, and other differential signals are described in the same manner.
- USB3.1 when the insertion direction of the electronic device using the USB Type-C interface is positive, A2, A3, B10, and B11 are used as the differential transmission line terminals of the USB3.1 data signal. When the insertion direction of the electronic device is reversed, B2, B3, A10, and A11 are used as the differential transmission line terminals of the USB3.1 data signal.
- USB Type-C can also be used to transmit digital video interface (displayport, DP) signals.
- DP mode the two pairs of unused differential signal line pins of USB3.1 can be used to transmit DP data signals (or called DP protocol data signals). Therefore, the USB Type-C interface can be used to implement USB3.1+DP signal transmission.
- all 4 pairs of differential signal line pins can be used to send DP data signals.
- USB Type-C also includes two pairs of differential transmission line pins (A6, A7 and B7, B7) to transmit USB2.0 data signals, and USB2.0 data signals are D+/D-.
- A8 and B8 are reserved pins in the USB Type-C interface, which are used to transmit SBU signals.
- the SBU signal has different purposes.
- the SBU signal may include the control signal or data signal of the DP protocol.
- A8 and B8 are used as audio transmission channels or microphone transmission channels to transmit audio data or video data.
- the control signal of the DP protocol can be an auxiliary (AUX) signal.
- the USB Type-C interface also supports the power delivery (PD) protocol, that is, it has the power supply function. As shown in Figure 2, GND is the ground pin, Vbus is the power pin, and the 4 ground pins and 4 power pins in the USB Type-C interface form 4 pairs of power supply pins for power supply.
- PD power delivery
- HDMI and USB interfaces In addition to the above-mentioned HDMI and USB interfaces, the current interface standards of electronic devices also include DP and so on. With the development of the mobile Internet, users have higher and higher requirements for transmission rates and transmission functions. Therefore, electronic devices need to support multiple types of interface protocols to meet the needs of data transmission rates and transmission functions. If an electronic device supports both Multiple interfaces will increase the cost of the product and restrict the size of the product. It can be seen from the above description that HDMI supports video transmission, but does not support power delivery (PD) and does not support the transmission of data other than multimedia data. In addition, HDMI is large in size and is not suitable for portable terminal equipment.
- PD power delivery
- USBType-C interface can support PD and support the transmission of other data besides multimedia data
- the number of USB Type-C data channels is limited and cannot meet the transmission requirements of high-speed multimedia data (including video data and/or audio data).
- the USB Type-C interface cannot be effectively compatible with the HDMI protocol.
- an embodiment of the present application provides a transmission interface that is expanded on the basis of a first port with USB interface function, such as expanding ports on both sides of the first port, such as the first expansion port and the second expansion port Expansion port.
- the first expansion port includes at least a pair of first differential transmission line terminals
- the second expansion port includes at least a pair of second differential transmission line terminals.
- the first differential transmission line terminal supports the transmission of the first data signal
- the second differential transmission line terminal supports the transmission of the first data signal
- the first data signal includes multimedia data.
- the first data signal may be a data signal of the HDMI protocol, a data signal of the DP protocol, or a data signal of the first protocol.
- the data signal of the first protocol may be a multimedia data transmission protocol, an existing multimedia transmission protocol, or a multimedia transmission protocol defined in the future, which is not limited in this application.
- the transmission involved in the embodiments of the present application includes receiving and/or sending.
- the USB interface involved in this application may be a USB Type-C interface or a USB Type-A interface, or may be other types of USB interfaces that will appear in the future, which is not limited in the embodiment of the application.
- the transmission interface provided in the embodiment of the present application may also be called an aggregate interface or a new interface (NEW port), and may also adopt other names, which is not limited in the embodiment of the present application. In the following description, the transmission interface provided in the embodiment of the present application is referred to as an aggregate interface as an example.
- the first port has the function of the USB Type-C interface, that is, the first port supports adapting the USB interface.
- the USB Type-C interface includes 24 pins, for example, see Figure 2.
- At least a pair of differential transmission line terminals are added to both ends of the USB Type-C interface shown in FIG. 2, respectively, as shown in FIG. 3A.
- the same number of differential transmission line terminal pairs are added to both ends of the USB Type-C interface, and they are arranged at both ends of the USB Type-C interface in a rotationally symmetric manner, so that the aggregate interface can support positive insertion or reverse insertion .
- the CC signal pin in the first port is used for function negotiation to determine the direction in which the device is inserted: forward insertion or reverse insertion.
- a pair of differential transmission line terminals are added at both ends of the USB Type-C interface as an example.
- the differential transmission line terminal added at one end is called the first differential transmission line terminal, and the other end is added
- the differential transmission line terminal is called the second differential transmission line terminal.
- the first differential transmission line terminal is located at the first expansion port
- the second differential transmission line terminal is located at the second expansion port. Both the first differential transmission line terminal and the second differential transmission line terminal are high-speed differential transmission line terminals.
- the first port includes 4 pairs of high-speed differential transmission line terminals, which are a pair of third differential transmission line terminals, a pair of fourth differential transmission line terminals, a pair of seventh differential transmission line terminals, and a pair of eighth differential transmission line terminals.
- two pairs of high-speed differential transmission line terminals are added on the basis of four pairs of high-speed differential transmission line terminals.
- the transmission rate of the high-speed differential transmission line can reach more than 10 gigabits per second (GB/s), for example, 10GB/s-20GB/s, or the bandwidth of the high-speed differential transmission line can reach 10G-20G.
- the aggregation interface provided by the embodiment of the present application has the capability of transmitting high-definition video of 8K and above. Among them, the abbreviation of 8K high-definition display resolution, for example, 7680x4320 pixels (16:9), about 33 million pixel images are transmitted per frame.
- the high-speed differential transmission line terminal included in the aggregate interface has both a sending function and a receiving function, that is, it supports two-way data transmission.
- the high-speed differential transmission line terminal may also be called a two-way data transmission terminal.
- the high-speed differential transmission line terminal supports the sending and receiving of the first data signal, that is, the high-speed differential transmission line terminal can be used as the transmitting terminal of the first data signal or the receiving terminal of the first data signal.
- the first data signal includes multimedia data.
- the multimedia data may include high-definition video data and/or large-bandwidth data signals.
- a pair of first differential transmission line terminals, a pair of second differential transmission line terminals, a pair of third differential transmission line terminals, a pair of fourth differential transmission line terminals, a pair of seventh differential transmission line terminals, and a pair of eighth differential transmission line terminals are all Supports two-way data transmission, that is, both have sending and receiving functions.
- the pin numbers of a pair of first differential transmission line terminals are C2 and C3, respectively, and the pin numbers of a pair of second differential transmission line terminals are D2 and D3, respectively, and a pair of third differential transmission line terminals
- the pin numbers of the terminals are B2 and B3, the pin numbers of a pair of fourth differential transmission line terminals are A10 and A11, the pin numbers of a pair of seventh differential transmission line terminals are A2 and A3, and a pair of eighth differential
- the pin numbers of the transmission line terminals are B10 and B11.
- B2 and B3 correspond to a pair of third differential transmission line terminals supporting bidirectional data transmission, and are used to transmit D0+ and D0- signals.
- the pins C2 and C3 correspond to the second differential transmission line terminals and are used to transmit D1+ and D1- signals.
- A10 and A11 correspond to a pair of fourth differential transmission line terminals supporting bidirectional data transmission, and are used to transmit D3- and D3+ signals.
- the pin numbers of a pair of seventh differential transmission line terminals that support bidirectional transmission are A2 and A3, which are used to transmit D4+ and D4- signals, and the pin numbers of a pair of eighth differential transmission line terminals that support bidirectional transmission are B11 and B10.
- D0-D5 all represent bidirectional data signals.
- high-definition video data is transmitted through 4 pairs of high-speed differential transmission line terminals among 6 pairs of high-speed differential transmission line terminals, and two-way transmission of large-bandwidth data signals is realized through the remaining two pairs of high-speed differential transmission line terminals.
- Three differential transmission line terminals and a pair of fourth differential transmission line terminals with pin numbers A10 and A11 respectively constitute 4 channels of high-definition video data transmission channels.
- a pair of seventh differential transmission line terminals with pin numbers A2 and A3, and a pair of eighth differential transmission line terminals with pin numbers B10 and B11 are used to realize bidirectional transmission of large bandwidth data.
- the large-bandwidth data signal may be, for example, multimedia data generated in a video call, or multimedia data generated in an artificial intelligence (AI) interactive scene.
- AI artificial intelligence
- the AI interaction scene may include a remote education scene, an advertisement promotion, an AR holographic call scene, or a remote guidance scene, etc.
- the high-speed differential transmission line terminal supporting bidirectional transmission may adopt the design method shown in FIG. 4.
- T represents transmission and R represents reception.
- R represents reception.
- a pair of first differential transmission line terminals with pin numbers C2 and C3, a pair of second differential transmission line terminals with pin numbers D2 and D3, and a pair of first differential transmission line terminals with pin numbers B2 and B3 Three differential transmission line terminals and a pair of fourth differential transmission line terminals with pin numbers A10 and A11, a pair of seventh differential transmission line terminals with pin numbers A2 and A3, and a pair of eighth with pin numbers B10 and B11
- Differential transmission lines adopt the design method shown in Figure 4.
- the data transmission and reception between the terminals are relative.
- the first electronic device is connected to the second electronic device.
- the terminal 1 belongs to the transmitting terminal
- the terminal connected to the terminal 1 belongs to the receiving terminal.
- some of the high-speed differential transmission line terminals included in the aggregate interface have both the sending function and the receiving function, that is, supporting two-way data transmission, and the other part has only the sending function or only the receiving function.
- the aggregation interface supports bidirectional data transmission through 4 pairs of high-speed differential transmission line terminals among 6 pairs of high-speed differential transmission line terminals, and can be used to send or receive high-definition video data.
- the remaining two pairs of high-speed differential transmission line terminals support unidirectional transmission.
- One pair of high-speed differential transmission line terminals only supports data transmission, and the other pair of high-speed differential transmission line terminals only supports data reception.
- a pair of first differential transmission line terminals, a pair of second differential transmission line terminals, a pair of third differential transmission line terminals, and a pair of fourth differential transmission line terminals all support two-way data transmission, that is, they all have sending and receiving functions, such as:
- a pair of seventh differential transmission line terminals supports data transmission
- a pair of eighth differential transmission line terminals supports data reception.
- the seventh differential transmission line terminal and the eighth differential transmission line terminal are combined to realize bidirectional transmission of data signals with a large bandwidth. For example, when a data signal with a large bandwidth needs to be sent, it is realized through the seventh differential transmission line terminal, and when a data signal with a large bandwidth needs to be received, it is realized through the eighth differential transmission line terminal.
- the pin numbers of the four pairs of high-speed differential transmission line terminals supporting bidirectional transmission in FIG. 3A are respectively B2, B3, C2, C3, D2, D3, A10, and A11.
- the pins B2 and B3 correspond to a pair of third differential transmission line terminals supporting bidirectional data transmission, and are used to transmit D0+ and D0- signals.
- the pins C2 and C3 correspond to the first differential transmission line terminals and are used to transmit D1+ and D1- signals.
- the pins D2 and D3 correspond to the second differential transmission line terminals and are used to transmit D2+ and D2- signals.
- Pins A10 and A11 correspond to a pair of fourth differential transmission line terminals supporting bidirectional data transmission, and are used to transmit D3- and D3+ signals.
- TX1+, TX1- signals, and RX1+, RX1- signals include large-bandwidth data signals or USB protocol data signals (such as USB3.0 data signals).
- the large-bandwidth data signal can adopt the USB protocol or other data signal protocols, which is not specifically limited here.
- the high-speed differential transmission line terminal supporting bidirectional transmission may adopt the design method shown in FIG. 4.
- Figure 3A a pair of first differential transmission line terminals with pin numbers C2 and C3, a pair of second differential transmission line terminals with pin numbers D2 and D3, and a pair of third differential transmission lines with pin numbers B2 and B3
- the terminals and a pair of fourth differential transmission line terminals with pin numbers A10 and A11 respectively adopt the design method shown in FIG. 4.
- the pin numbers of the four pairs of high-speed differential transmission line terminals supporting bidirectional transmission are A2, A3, C2, C3, D2, D3, B10, and B11 as an example.
- A2 and A3 correspond to a pair of third differential transmission line terminals supporting bidirectional data transmission, and are used to transmit D0+ and D0- signals.
- the pins C2 and C3 correspond to the second differential transmission line terminals and are used to transmit D1+ and D1- signals.
- B10 and B11 correspond to a pair of fourth differential transmission line terminals supporting bidirectional data transmission, and are used to transmit D3- and D3+ signals.
- the pin numbers of a pair of seventh differential transmission line terminals that support one-way data transmission are B2, B3, which are used to transmit TX2+, TX2- signals
- the pin numbers of the eighth differential transmission line terminal that support one-way data reception are A11, A10 , Used to transmit RX2+, RX2- signals.
- the high-speed differential transmission line terminal supporting bidirectional transmission may adopt the design method shown in FIG. 4.
- Figure 3C a pair of first differential transmission line terminals with pin numbers C2 and C3, a pair of second differential transmission line terminals with pin numbers D2 and D3, and a pair of third differential transmission lines with pin numbers B2 and B3
- the terminals and a pair of fourth differential transmission line terminals with pin numbers A10 and A11 respectively adopt the design method shown in FIG. 4.
- the differential transmission line terminal supporting the bidirectional transmission of data signals involved in the embodiments of the present application can be compatible with the transmission of HDMI and DP protocol data signals.
- a differential transmission line terminal supporting two-way transmission of data signals can include two transmission channels in each transmission direction, one of which is used to transmit HDMI protocol data signals, and the other transmission channel is used to transmit DP protocol data signals.
- d0 represents the data signal of the HDMI protocol
- L0 represents the data signal of the DP protocol.
- the differential transmission line terminal supporting the bidirectional transmission of data signals has one transmission direction at the same time, and one of the two transmission channels in the transmission direction is used to transmit the data signal.
- differential transmission line terminal supporting two-way transmission of data signals involved in the embodiments of the present application may also support the transmission of data signals of the USB protocol, and may also support data signals of other protocols, or data signals of protocols that appear in the future.
- Each of the high-speed differential transmission line terminals that support bidirectional transmission in the aggregate interface provided by the embodiments of the present application can be designed according to requirements to have a bidirectional data transmission channel, support two-way transmission of data signals, or only be designed to have a one-way channel, such as The receiving channel of the data signal is only used to receive the data signal, or the sending channel of the data signal is only used to send the data signal.
- the four pairs of high-speed differential transmission line terminals in the original USB Type C interface only support one-way transmission.
- Two pairs of high-speed differential transmission line terminals support one-way transmission.
- the pin numbers are B2, B3, A2, and A3, respectively.
- For sending TX1 and TX2 the other two pairs of high-speed differential transmission line terminals support one-way reception.
- the pin numbers are B10, B11, A10, and A11 respectively, which are used to receive RX1 and RX2, respectively.
- the four pairs of high-speed differentials composed of B2, B3, A2, A3, B10, B11, A10, and A11 in the original USB Type C interface are used to support bidirectional data transmission.
- the differential transmission line terminals with pin numbers B2, B3, A10, and A11 in the original USB Type C interface are modified to support bidirectional data transmission.
- the two pairs of differential transmission line terminals with pin numbers A2, A3, B10 and B11 remain unchanged.
- the original USB Type C includes 4 pairs of power supply pins.
- the first expansion port may further include a ground terminal and at least one power terminal
- the second expansion port may further include a ground terminal and at least one power terminal.
- the same number of ground terminals and power terminals can be added to the two expansion ports. And the ground terminals and power terminals added in the two expansion ports are arranged in the two expansion ports in a rotationally symmetric manner.
- the aggregate interface can support positive insertion or reverse insertion.
- the ground terminal in the first expansion port is called the first ground terminal
- the ground terminal in the second expansion port is called the second ground terminal.
- the power terminal in the first expansion port is called the first power terminal
- the power terminal in the second expansion port is called the second power terminal.
- the first expansion port specifically includes a first power terminal and a first ground terminal
- the second expansion port specifically includes a second power terminal and a second ground terminal.
- the first power terminal is formed by cascading two or more adjacent standard power terminals.
- the second power terminal is formed by cascading two or more adjacent standard power terminals.
- the first power terminal of the first expansion port includes two adjacent and electrically connected standard power terminals; the second power terminal of the second expansion port includes two adjacent and electrically connected The standard power terminal.
- the two standard power terminals The insulation distance between the two standard power terminals and the opened distance between the two standard power terminals constitute the first power terminal of the first expansion port or the second power terminal of the second expansion port.
- the first power supply The space occupied by the terminals and the second power terminal is equivalent to two terminals plus a space, so the current flow capacity of the first power terminal and the second power terminal can be improved.
- the space of the spacing is used to increase the power supply flow capacity.
- two adjacent standard VCC terminals adopt a cascade arrangement design.
- the original two adjacent standard VCC terminals with no current flow capacity are arranged in a cascade connection. Flow capacity.
- the 4 VCC terminals can achieve the current flow effect of the 6 VCC terminals to a certain extent.
- the above solution adopts the design of adding 4 VCC terminals, so that the power supply capacity of the aggregate interface may reach 2.5 times that of the original USB Type-C interface, and may reach a power supply capacity of 250W.
- the specifications of other terminals except the first power terminal included in the first expansion port and the second power terminal included in the second expansion port are the same as those of the standard power terminal, that is, except The terminals other than the first power terminal included in the first expansion port and the second power terminal included in the second expansion port occupy the same size or the same size as the standard power terminal in the embodiment of the present application.
- the specifications of the standard power terminal in the embodiment of the present application are the same as the specifications of the power terminal in the existing USB typeC interface, for example, the standard power terminal has the same size as the power terminal in the USB typeC interface In other words, the size of the occupied space is the same.
- all ports other than the first power terminal included in the first expansion port and the second power terminal included in the second expansion port have the same size or occupy the same space as the standard power terminal.
- the first port of the aggregation interface provided in the embodiment of the present application may include a first control signal terminal and a second control signal terminal.
- the first control signal terminal and the second control signal terminal may be pins B8 and A8 in the USB Type-C interface.
- the first control signal terminal and the second control signal terminal support the transmission of the control signal of the first protocol.
- the first control signal terminal and the second control signal terminal may constitute a pair of differential transmission line terminals, which can transmit the control signal of the first protocol in a differential signal manner.
- the control signal transmitted by the first control signal terminal can be called New+, that is, the first control signal terminal is used to transmit the positive signal of the control signal
- the control signal transmitted by the second control signal terminal is called New-, that is, the first control signal terminal.
- the second control signal terminal is used to transmit the negative signal of the control signal.
- the first control signal terminal is B8 and the second control signal terminal is A8 as an example.
- the control signal of the first protocol may have the function of one or more of the following control signals: a control signal of the HDMI protocol, a control signal of the USB protocol, or a control signal of the DP protocol.
- the control signal of the first protocol can also include other types of control signals, that is, pins B8 and A8 also have other functions, such as negotiating the capabilities of the receiving end, obtaining information about the receiving capability of the receiving end, such as the format used by the transmitted data signal, and the transmission The format of the control signal used, the type of control signal transmitted, etc.
- control signal of the first protocol may be a control signal of HDMI protocol, a control signal of USB protocol, or a superposition of multiple control signals in a control signal of DP protocol, or it may be a newly defined control signal. It has the function of one or more of the control signal of HDMI protocol, the control signal of USB protocol, or the control signal of DP protocol. It should be noted that the control signal of the first protocol may be a control signal of a protocol defined in the future.
- New+ and New- may have the function of the control signal of the HDMI protocol and the USB protocol.
- the control signals New+ and New- have the functions of SBU1 signal, SBU2 signal, CEC signal, utility signal, SDA signal and SCL signal.
- both New+ and New- have the functions of the above 6 control signals.
- B8 and A8 use time division multiplexing to transmit control signals with the functions of SBU1 signal, SBU2 signal, CEC signal, utility signal, SDA signal, and SCL signal.
- control signal of the first protocol includes 6 fields, and the information of the 6 fields has the functions of SBU1 signal, SBU2 signal, CEC signal, utility signal, SDA signal, and SCL signal. Different fields have different functions. Among them, the CEC signal, SDA signal, SCL signal, and utility signal are all control signals of the HDMI protocol. SBU1 and SBU2 are the control signals of the USB protocol.
- B8 and A8 can form a pair of differential transmission line terminals for transmitting SBU1 signal, SBU2 signal, CEC signal, utility signal, SDA signal and SCL signal.
- SBU1 signal and SBU2 signal are a pair of differential control signals
- CEC signal, utility signal, SDA signal and SCL signal can all be split into a pair of differential control signals
- the differential control signal after CEC signal splitting can be CEC+/CEC -
- the differential control signal after utility signal splitting can be utility+/utility-
- the differential control signal after SDA signal splitting can be SDA+/SDA-
- the differential control signal after SCL signal splitting can be SCL+/SCL-.
- B8 and A8 are used for combined transmission of SBU1 signal, SBU2 signal, CEC signal, utility signal, SDA signal and SCL signal.
- SBU1 and SBU2 cannot be transmitted by the same pin, and CEC and utility cannot be transmitted by the same pin.
- Pin transmission, SDA and SCL cannot be transmitted by the same pin.
- one of SBU1 and SBU2 is transmitted by B8, the other is transmitted by A8, CEC and utility are transmitted by B8, and the other is transmitted by A8, and SDA and SCL are one. It is transmitted by B8 and the other is transmitted by A8.
- New+ and New- can have the function of the control signal of the DP protocol and the USB protocol.
- the first control signal terminal (B8) and the second control signal terminal (A8) support the transmission of SBU1 signals, SBU2 signals, AUX+ signals, and AUX- signals.
- B8 and A8 form a pair of differential transmission line terminals for transmitting SBU1 signal, SBU2 signal, AUX+ signal and AUX- signal.
- the SBU1 signal and SBU2 signal are a pair of differential control signals
- the AUX+ signal and AUX- signal form a pair of differential control signals.
- SBU1 is a positive signal
- SBU2 is a negative signal
- B8 can use time division multiplexing to transmit SBU1 and AUX+
- A8 uses time division multiplexing to transmit SBU2 and AUX-.
- the control signal of the first protocol includes two fields, the information of the two fields has the functions of the SBU signal and the AUX signal, and different fields have different functions.
- the aggregate interface when New+ and New- have the control signal function of HDMI protocol and USB protocol, the aggregate interface supports dual-mode transmission of HDMI and USB, when New+ and New- can have DP protocol and USB protocol
- the function of the control signal the aggregate interface supports dual-mode transmission of DP and USB. See Table 3, which is used to describe the transmission mode adopted by the aggregate interface under different control signal states of New+ and New-.
- the transmission mode is HDMI and USB dual-mode transmission
- the state of the control signal is state 1, that is, the control signals of the HDMI protocol and the USB protocol are transmitted through the first control signal terminal (B8) and the second control signal terminal (A8).
- the state of the control signal is state 2, that is, the control signals of the DP protocol and the USB protocol are transmitted through the first control signal terminal (B8) and the second control signal terminal (A8).
- the sending end can obtain the receiving capability information of the receiving end through B8 and A8, including the transmission mode, and then determine the state of the transmitted control signal according to the transmission mode, that is, the type of the transmitted control signal.
- Control signal status Transmission mode State 1 (corresponding to the first possible example) HDMI and USB dual-mode transmission State 2 (corresponding to the second possible example) Dual mode transmission of DP and USB
- the electronic device containing the above-mentioned aggregation interface can negotiate other functions with another connected electronic device through New+ or New-, or other terminals, such as obtaining a protocol type supported by another electronic device or other functions. Used to indicate the parameter value of the protocol, and then determine the type of control signal transmitted between the electronic device and another electronic device. The specific details are described in detail later, and the description is not repeated here.
- the aggregation interface provided in the embodiment of the present application can be compatible with HDMI or USB Type-C interface coupling.
- Figure 9 is a functional schematic diagram of each terminal in the aggregate interface after a compatible design.
- the third differential transmission line terminal with pin numbers B2 and B3 can be used not only as a bidirectional data terminal for HDMI protocol data signals and DP protocol data signals, but also as a sending terminal for USB protocol data signals.
- the fourth differential transmission line terminals numbered A10 and A11 can be used as two-way data terminals for HDMI protocol data signals and DP protocol data signals, and can also be used as receiving terminals for USB protocol data signals.
- FIG 10 is a schematic diagram of an exemplary compatibility design principle of the terminals with pin numbers A10 and A11 in Figure 9, where d0 represents the data signal of the HDMI protocol, L0 represents the data signal of the DP protocol, and TX2 Represents the data signal of the USB protocol.
- the pair of fourth differential transmission line terminals supports sending the d0 signal of the HDMI protocol, the L0 signal of the DP protocol, and also supports the receiving of the RX2 signal of the USB protocol.
- Figure 11 is a schematic diagram of an exemplary compatibility design principle of the terminals with pin numbers B2 and B3 in Figure 9.
- the pair of third differential transmission line terminals support the transmission of HDMI protocol d0 signal and DP protocol
- the L0 signal also supports sending the TX2 signal of the USB protocol.
- the set-top box and the display screen are connected through an aggregation interface, and the display screen is provided with a camera. After the display screen obtains the video data collected by the camera, it can be sent to the set-top box through a pair of third differential transmission line terminals.
- the embodiment of the present application performs a compatible design for the first control signal terminal and the second control signal terminal.
- the first control signal terminal and the second control signal terminal support the transmission of the first type of control signal, and can also be compatible with the ability to transmit the control signal of the HDMI protocol, the control signal of the USB protocol, or the control signal of the DP protocol.
- the first control signal terminal (B8) may be used to transmit one of New+, SBU1, SCL, and AUX+.
- the pin B8 is used to send or receive one of New+, SBU1, SCL, and AUX+.
- the second control signal terminal (A8) can be used to transmit one of New-, SBU2, SDA, and AUX-.
- the pin A8 is used to send or receive one of New-, SBU2, SDA, and AUX-.
- control signals of the HDMI protocol include 4 types.
- the first control signal terminal (B8) and the second control signal terminal (A8) are used to transmit the control signals of the two HDMI protocols.
- the pair of sixth differential transmission line terminals (pins A6 and A7) or the fifth differential transmission terminal (pins B6 and B7) in the first port are multiplexed to transmit control signals of the other two HDMI protocols.
- the multiplexing of A6 and A7 to transmit HDMI protocol data signals is taken as an example.
- A6 supports the transmission of CEC signals and A7 supports the transmission of utility signals as an example.
- the PD can be negotiated through the pins CC1 or CC2 in the aggregate interface. Positive insertion or reverse insertion can also be determined by CC1 or CC2.
- the aggregation interface provided in the embodiment of the present application also supports Huawei's proprietary fast charge protocol. The negotiation of this private fast charge protocol can be negotiated by multiplexing Type USB-C pins B6 and B7.
- the aggregation interface is also compatible with USB2.0 functions, and can transmit USB2.0 data signals through pins B6 and B7 or A6 and A7.
- the form of the interface described in the embodiment of the present application includes a receptacle and a plug.
- the interface on the electronic device can be called a socket
- the interface of the transmission cable can be called a plug.
- FIG. 3A to FIG. 3C and FIG. 9 are schematic diagrams of the pins of the aggregation interface.
- the aggregation interface can be applied to the electronic device, and can also be applied to the transmission cable of the adapted electronic device.
- the aggregate interface on the electronic device can be called a socket
- the aggregate interface of the transmission cable can be called a plug.
- the electronic device using the aggregate interface can communicate with the electronic device using the aggregate interface, HDMI or USB interface (using the USB protocol and/or DP protocol). Based on this, the embodiments of the present application also provide several types of transmission cables.
- the first type The interfaces used by the plugs at both ends of the first type of transmission cable are aggregate interfaces.
- the first type of transmission cable includes a first plug and a second plug, and the interfaces used by the first plug and the second plug are both aggregate interfaces.
- the first plug and the second plug can be connected by a transmission line.
- Figure 14 which is a schematic diagram of a possible first type of transmission cable.
- the left side of the first type transmission cable in FIG. 14 is a schematic diagram of the pins of the aggregation interface adopted by the first plug.
- the first plug in Figure 14 can be coupled to the first socket.
- the right side of the first type of transmission cable is a schematic diagram of the pins of the aggregate interface used by the second plug.
- the first plug and the second plug use the same aggregation interface, and the socket to which the second plug is coupled may be the first socket.
- the second type of transmission cable includes three ends, the interface of the first end plug adopts the aggregation interface, the interface of the second end plug adopts HDMI, and the interface of the third end plug adopts the USB interface. That is, the second type of transmission cable includes a first plug, a second plug, and a third plug.
- the interface of the first plug is an aggregate interface
- the interface of the second plug is HDMI
- the interface of the third plug is a USB interface
- the first plug and the second plug are connected by the first transmission line
- the first plug and the third plug are connected by the second transmission line connect.
- the first port in the aggregate interface also includes a pair of fifth differential transmission line terminals and a pair of sixth differential transmission line terminals.
- the pin numbers of the pair of fifth differential transmission line terminals and the pair of sixth differential transmission line terminals may be A6, A7 and B6, B7.
- the pin numbers of a pair of fifth differential transmission line terminals are A6 and A7.
- the pin numbers of a pair of sixth differential transmission line terminals are B6 and B7.
- the pins A6, A7 and B6, B7 in the USB Type-C interface will not be used at the same time.
- USB 2.0 data signal when plugging in, use A6, A7 to send or receive USB protocol data signals (USB2.0 data signal), when reverse plugging, use B6 and B7 to send or receive USB protocol data signals (USB2.0 data signal) ).
- pins that are not used by the USB Type-C interface can be multiplexed to transmit HDMI control signals.
- pins B6 and B7 are used to send or receive USB protocol data signals (USB2.0 data signals), namely D+ /D-, A6 and A7 pins support sending or receiving USB protocol data signals (USB2.0 data signals), and also support the transmission of HDMI control signals.
- HDMI control signals include 4 types of SCL, SDA, CEC, and utility signals, so the A8, B8, A6, and A7 pins can be used to transmit SCL, SDA, CEC, and utility signals.
- the A8 pin is used to transmit the SDA signal
- the B8 pin is used to transmit the SCL signal
- A6 is used to transmit the CEC signal
- A7 is used to transmit the Utility signal.
- the fifth differential transmission line terminal and the sixth differential transmission line terminal in the aggregate interface both support the two-way transmission of the data signal of the USB protocol and the two-way transmission of the control signal of the HDMI protocol.
- the transmission rate of the fifth differential transmission line terminal and the transmission rate of the sixth differential transmission line terminal are both the first rate
- the transmission rate of the third differential transmission line terminal and the transmission rate of the fourth differential transmission line terminal are both the second rate.
- the first rate is less than or equal to the second rate. That is, the differential transmission line terminals of B6, B7, A6, and A7 in the embodiments of the present application may be high-speed differential transmission line terminals, or may be terminals with a transmission rate slightly lower than the high-speed differential transmission line terminals.
- the second control signal terminal is used to transmit the control signal of the HDMI protocol.
- a pair of sixth differential transmission terminals are used by the USB Type-C interface to transmit (send or receive) USB protocol data signals (D+/D-)
- a pair of fifth differential transmission line terminals and first control signal terminals The second control signal terminal is used to transmit the control signal of the HDMI protocol.
- the four pairs of high-speed differential transmission line terminals supporting bidirectional transmission included in the aggregate interface can be used to transmit four data signals of the HDMI protocol, which are TMDS data 0, TMDS data 1, TMDS data 2, and TMDS clock signals.
- D2, D3, C2, C3, B2, B3, A10, and A11 are used to transmit 4 data signals of the HDMI protocol, which can be D0+/D0-, D1+/D1-, D2+/D2-, and D3+. /D3-. That is, in order to be compatible with HDMI coupling, the aggregate interface supports the transmission of the data signal of the HDMI protocol on the basis of supporting the transmission of the data signal of the first protocol.
- FIG. 15 is a schematic diagram of a possible third type of transmission cable.
- the left side of the second type transmission cable in FIG. 15 is a schematic diagram of the pins of the aggregation interface adopted by the first plug.
- the first plug in Figure 15 can be coupled to the first socket.
- FIG. 16 depicts the connection relationship between the terminals in the transmission cable that provides a possible connection.
- the pin numbers of the first plug and the third plug are A1-A5, A9, A12, B1, B4, B6, B7, and B9-B12 correspondingly connected.
- B10 and B11 are used to receive USB protocol data signals.
- RX1 represents the received USB protocol data signal.
- A2 and A3 are used to send USB protocol data signals.
- TX1 represents the sent USB protocol. Protocol data signal.
- the 4 pins B8, A8, A6, and A7 are used to realize the transmission of 4 HDMI control signals, which are SCL, SDA, CEC, and utility signals, respectively. Specifically, this application does not specifically limit which pin is used to transmit which control signal.
- the B8 and A8 in the aggregate interface are used to transmit SCL and SDA
- the A6 and A7 pins are used to transmit CEC and utility signals as an example.
- the interface used by the plug at one end is an aggregate interface
- the interface used by the plug at the other end is a USB interface, such as a USB Type-C interface. That is, the third type of transmission cable includes a first plug and a second plug, the interface of the first plug is an aggregate interface, and the interface of the second plug is a USB Type-C interface.
- the USB Type-C interface is only used to transmit USB protocol signals.
- the USB Type-C interface is also used to transmit DP protocol signals.
- the four pairs of high-speed differential transmission line terminals supporting bidirectional transmission in the aggregate interface are used to transmit data signals of the DP protocol, and the first control signal terminal and The second control signal terminal is used to transmit the control signal of the DP protocol, and other power terminals and ground terminals can be used to realize power supply.
- the USB Type-C interface is used to transmit DP protocol signals as an example.
- Figure 16 is a schematic diagram of a possible third type of transmission cable.
- the right side of the second type transmission cable in FIG. 16 is a schematic diagram of the pins of the aggregation interface adopted by the first plug.
- the first plug in Figure 16 can be coupled to the first socket.
- FIG. 16 depicts the connection relationship between the terminals in the transmission cable that provides a possible connection.
- the pin numbers of the first plug and the second plug are A1, A4, A5, A9, A12, B1, B4, B5, and B9, B12 are connected correspondingly.
- the corresponding pins of the pin numbers A11, A10, D2, D3, C2, C3, B2, and B3 in the aggregate interface are used to transmit data signals of the DP protocol.
- the pin numbers A11, A10, D2, D3, C2, C3, B2, and B3 of the aggregate interface in Figure 17 correspond to A11, A10, B2, B3, A2, A3, B11, and B10 of the USB Type-C interface respectively. connect.
- the four pairs of high-speed differential transmission line terminals A11, A10, D2, D3, C2, C3, B2, and B3 of the aggregate interface are connected in one-to-one correspondence with the four pairs of high-speed differential transmission line terminals in the USB Type-C interface.
- this application does not specifically limit the connection relationship between each high-speed differential transmission line terminal pair.
- the fourth type of transmission cable In the fourth type of transmission cable, one end of the plug adopts an aggregate interface, and the other end of the plug adopts an HDMI interface. That is, the fourth type of transmission cable includes a first plug and a second plug, the interface of the first plug is an aggregate interface, and the interface of the second plug is HDMI.
- the first port in the aggregate interface also includes a pair of fifth differential transmission line terminals.
- the pair of fifth differential transmission line terminals may be A6, A7 or B6, B7.
- the pin numbers of a pair of fifth differential transmission line terminals are A6 and A7.
- HDMI control signals include 4 types of SCL, SDA, CEC and utility signals.
- the aggregate interface can be controlled by the first pin number of A8 and B8.
- the signal terminal and the second control signal terminal, as well as A6 and A7, realize the transmission of SCL, SDA, CEC and utility signals.
- the transmission of HDMI protocol data signals can be realized through 4 pairs of high-speed differential transmission line terminals composed of A11, A10, D2, D3, C2, C3, B2 and B3 of the aggregate interface.
- the four pairs of high-speed differential transmission line terminals A11, A10, D2, D3, C2, C3, B2, and B3 of the aggregate interface can be connected in one-to-one correspondence with the four pairs of high-speed differential transmission line terminals in HDMI.
- This application applies to each high-speed differential transmission line.
- the connection relationship between the terminal pairs is not specifically limited.
- FIG. 17 a schematic diagram of a possible fourth transmission cable is exemplarily provided.
- the left side of the second type transmission cable in FIG. 17 is a schematic diagram of the pins of the aggregation interface adopted by the first plug.
- the first plug in Figure 17 can be coupled to the first socket.
- the +5V power supply of HDMI can be realized through pin D6.
- the HPD signal can be realized by pin C6 in the aggregate interface.
- a detection terminal is included in the first expansion port or the second expansion port, and the detection terminal can be used to detect the transmission line connected to the aggregation interface
- the cable type, or the interface type or the interface protocol of the electronic device connected to the electronic device including the aggregate interface is detected.
- the detection terminal can be realized through pin D6, or through pin C6. In the embodiment of the present application, the D6 pin is used as the detection terminal as an example.
- the type of transmission cable connected to the aggregation interface can be determined by detecting the voltage value of the terminal. For example, see Table 4, which is used to describe the method of detecting the type of transmission cable connected to the aggregate interface.
- K1 is 0V
- K2 is 2.5V
- K3 is 5V
- K4 is 5V.
- Both the second type of transmission cable and the third type of transmission cable can use a voltage value of 5V.
- the detection terminal (D6) can also be used to provide a 5V voltage for HDMI.
- other terminals can be used to determine whether the USB interface has been coupled, such as A5 (CC1) or B5 (CC2). ).
- the type of the transmission cable connected to the aggregation interface detected by the detection terminal is used to indicate the type of the control signal transmitted by the first control signal terminal and the second control signal terminal; the detection terminal The detected type of the transmission cable connected to the aggregate interface is used to indicate the type of the data signal transmitted by the third differential transmission line terminal and the fourth differential transmission terminal.
- Different transmission cable types correspond to different application scenarios.
- different differential transmission line terminals in the aggregate interface transmit different signal types (or signal protocols), such as the first differential transmission line terminal and the second differential transmission line.
- the terminal, the first control signal terminal and the second control signal terminal, the third differential transmission line terminal, and the fourth differential transmission terminal have different signal types (or signal protocols) transmitted.
- the first electronic device is configured with an aggregate interface.
- the first electronic device is coupled with the second electronic device through the aggregation interface.
- the first electronic device may send a signal to the second electronic device through the aggregation interface, and may also receive a signal from the second electronic device through the aggregation interface.
- the signal sent by the first electronic device to the second electronic device is called the first data signal
- the signal from the second electronic device received by the first electronic device is called the second data signal.
- the data signal transmission method provided by the embodiment of the present application may include S1 and S2:
- the first electronic device acquires the first data signal to be sent, and sends the first data signal to the second electronic device through at least one pair of differential transmission line terminals, and the at least one pair of differential transmission line terminals includes the at least one pair of differential transmission line terminals.
- the first data signal includes first multimedia data.
- the first electronic device receives a second data signal from the second electronic device through the at least one pair of differential transmission line terminals, where the second data signal includes second multimedia data.
- Both the first electronic device and the second electronic device adopt aggregate interfaces.
- the first electronic device and the second electronic device are connected by a first type of transmission cable.
- the interfaces used by the plugs at both ends of the first type of transmission cable are all aggregate interfaces.
- the aggregation interface adopted by the first electronic device and the second electronic device may be the first socket as shown in FIG. 14.
- the first electronic device is the source device and the second electronic device is the sink device.
- the first electronic device may be a set-top box, a split DOCK, or a PC.
- the second electronic device may be a television (TV), a display, a smart screen, or the like.
- the first electronic device may be a sink device, and the second electronic device may be a source device.
- the second electronic device may be a set-top box, a split DOCK, or a PC.
- the first electronic device may be a television (TV), a display, a smart screen, or the like.
- the first electronic device may send high-definition video data to the second electronic device through the aggregation interface.
- large bandwidth data can be transmitted between the first electronic device and the second electronic device, such as data generated by a video call or AI interactive video call content.
- the first electronic device is a PC and the second electronic device is a smart screen.
- the first electronic device can send the high-definition video data that needs to be displayed to the second electronic device; and the user of the first electronic device uses the computer on the first electronic device
- the application makes a video call the first electronic device may send the video call data to the second electronic device, and the second electronic device presents it to the user.
- one of the first electronic device or the second electronic device does not need to be connected to a power cord, and the electronic device connected to the power cord can supply power to the electronic device not connected to the power cord through the transmission cable.
- both the first electronic device and the second electronic device include an aggregation interface and a processing device.
- the processing device may include an integrated circuit chip (integrated circuit chip, IC) and a controller.
- the aggregate interface of the first electronic device is called aggregate interface 1
- the aggregate interface of the second electronic device is called aggregate interface 2
- the interface IC of the first electronic device is called interface IC1.
- the IC is called the interface IC2
- the controller of the first electronic device is called the controller 1
- the controller of the second electronic device is called the controller 2.
- the aggregation interface 1 and the aggregation interface 2 are connected by a transmission cable of the first type.
- the first electronic device may send the first data signal to the second electronic device through the aggregation interface 1, the transmission cable, and the aggregation interface 2.
- the first electronic device and the second electronic device may transmit (send or receive) the control signal of the first protocol through the aggregation interface 1, the transmission cable, and the aggregation interface 2.
- the control signal sent by the first electronic device to the second electronic device is called the first control signal
- the control signal sent by the second electronic device to the first electronic device is called the second control signal.
- the first data signal is an HDMI protocol data signal or a DP protocol data signal as an example.
- HDMI/DP in FIG. 18 represents the data signal of the HDMI protocol/the data signal of the DP protocol.
- the controller 1 detects the voltage of the detection terminal (D6) through the interface IC1, and detects that the first electronic device and the second electronic device are connected by the first type of transmission cable according to the voltage of D6, that is, the first electronic device Both the device and the second electronic device adopt aggregate interfaces.
- the controller 1 After the controller 1 generates the first control signal of the first protocol, it sends the control signal of the first protocol to the second electronic device through the pins B8 and A8 of the aggregate interface 1 through the interface IC1. After receiving the first control signal of the first protocol through the aggregation interface 2, the second electronic device sends the first control signal of the first protocol to the controller 2 through the interface IC2. In turn, the controller 2 performs further processing on the first control signal of the first protocol. After the controller 2 generates the second control signal of the first protocol, the second control signal of the first protocol is sent to the first electronic device through the pins B8 and A8 of the aggregation interface 2 through the interface IC2. After receiving the second control signal of the first protocol through the aggregation interface 1, the first electronic device sends the second control signal of the first protocol to the controller 1 through the interface IC1. In turn, the controller 1 performs further processing on the second control signal of the first protocol.
- the first electronic device and the second electronic device can negotiate information such as the type of data signal used by the two parties through the first control signal and the second control signal of the first protocol.
- the type of the data signal is a data signal of the HDMI protocol or a data signal of the DP protocol.
- the controller 1 After the controller 1 obtains the first data signal (the data signal of the HDMI protocol or the data signal of the DP protocol), the first data signal (the data signal of the HDMI protocol or the data signal of the DP protocol) is transmitted through the aggregation interface 1 through the interface IC1.
- the pins A11, A10, D2, D3, C2, C3, B2, and B3 are sent to the second electronic device.
- the first data signal (data signal of HDMI protocol or data signal of DP protocol) is transmitted through interface IC2 Send to controller 2.
- the controller 2 performs further processing on the first data signal (the data signal of the HDMI protocol or the data signal of the DP protocol).
- the first electronic device when the first electronic device is connected to the power source and the second electronic device is not connected to the power source, the first electronic device can supply power through the aggregate interface 1 pins C4, C5, D4, D5, B4, B9, A4, A9, through the first type of transmission cable, and the power supply pins C4, C5, D4, D5, B4, B9, A4, and A9 of the aggregate interface 2 are implemented to supply power to the second electronic device.
- the second electronic device can use the power supply pins C4, C5, D4, D5, B4, B9, A4, A9 of the aggregate interface 2 and via the first electronic device.
- a type of transmission cable and the power supply pins C4, C5, D4, D5, B4, B9, A4, and A9 of the aggregate interface 1 are implemented to supply power to the first electronic device.
- the data signal can be realized through pins B11, B10, A2, and A3.
- Send or receive the second electronic device is equipped with a camera. After the second electronic device obtains the video data collected by the camera, it is sent to the first electronic device through a pair of differential transmission line terminals responsible for data signal transmission of the aggregation interface 2, namely A2 and A3.
- the first electronic device receives video data through a pair of differential transmission line terminals responsible for data signal reception of the aggregate interface 1, namely B10 and B11.
- the first electronic device and the second electronic device may also use pins B6, B7 or A6, A7 to send data signals with a smaller bandwidth, such as transferring file data.
- the first electronic device uses an aggregate interface
- the second electronic device uses HDMI
- the third electronic device uses a USB Type-C interface.
- the first electronic device, the second electronic device, and the third electronic device are connected by a second type of transmission cable. Take the transmission cable shown in Figure 15 as an example.
- the aggregation interface adopted by the first electronic device may be the first socket as shown in FIG. 15.
- the first electronic device refers to the sending source of the high-definition video data
- the receiving end refers to the receiving end of the high-definition video data.
- the first electronic device may be a set-top box, a split DOCK, or a PC.
- the second electronic device may be a television (TV), a display, a smart screen, or the like.
- the third electronic device may be a portable terminal device.
- the first electronic device may send high-definition video data to the second electronic device through the aggregation interface.
- the data signal of the USB protocol can also be transmitted between the first electronic device and the third electronic device.
- the first electronic device can also supply power to the third electronic device.
- the first electronic device includes an aggregation interface and a processing device.
- the processing device may include an interface IC and a controller.
- the first electronic device may send the first data signal to the second electronic device through the aggregation interface, the transmission cable, and HDMI.
- the first data signal includes a data signal of the HDMI protocol.
- the controller detects the voltage of the detection terminal (D6) through the interface IC, and detects that the first electronic device is connected to the second electronic device and the third electronic device using the second type of transmission cable according to the voltage of D6.
- the control signal of the HDMI protocol can be transmitted (sent or received) between the first electronic device and the second electronic device through an aggregation interface, a transmission cable, and HDMI.
- the control signal sent by the first electronic device to the second electronic device is called the first control signal
- the control signal sent by the second electronic device to the first electronic device is called the second control signal.
- the controller After the controller generates the first control signal of the HDMI protocol, it sends the first control signal of the HDMI protocol to the second electronic device through the aggregate interface pins B8, A8, A6, and A7 through the interface IC, and the second electronic device receives it through HDMI The first control signal of the HDMI protocol, and the second electronic device performs further processing on the first control signal of the HDMI protocol.
- the second electronic device After the second electronic device generates the second control signal of the HDMI protocol, it is sent to the first electronic device through HDMI, and the first electronic device receives the second control signal of the HDMI protocol through pins B8, A8, A6, and A7 of the aggregate interface After the signal, it is sent to the controller through the interface IC, and the controller performs further processing for the control signal of the HDMI protocol.
- the first control signal and the second control signal are used to negotiate the capability information of the second electronic device.
- the controller After the controller obtains the HDMI protocol data signal, it sends the HDMI protocol data signal to the second electronic device through the aggregate interface pins A11, A10, D2, D3, C2, C3, B2, and B3 through the interface IC.
- the second electronic device receives the data signal of the HDMI protocol through HDMI. Furthermore, the second electronic device performs further processing on the data signal of the HDMI protocol.
- the first electronic device can supply power to the third electronic device through the power supply pins B4, B9, A4, and A9 of the aggregation interface, and via the second type transmission cable and the USB Type-C interface.
- the power supply function can be negotiated through CC1 or CC2.
- the USB Type-C interface's positive or reverse plug function can be implemented through CC1 or CC2.
- the first electronic device and the third electronic device can be negotiated through the aggregation interface and the CC1 or CC2 of the USB Type-C interface.
- the USB Type-C interface of the third electronic device can also support Huawei’s proprietary fast charge protocol.
- the first electronic device and the third electronic device can pass the aggregation interface and the USB Type-C interface A6(D+) and A7(D– ) To negotiate a private fast charge agreement.
- the USB protocol data signals can be sent or received through pins B11, B10, A2, and A3.
- the first electronic device and the third electronic device can also send data signals with a smaller bandwidth through pins B6, B7 or A6, A7, such as transferring file data.
- the second type of transmission cable can only connect the electronic device at both ends.
- the first electronic device and the second electronic device are connected through a second type of transmission cable.
- the USB Type-C interface is not connected to a third electronic device.
- the first electronic device may send high-definition video data to the second electronic device through the aggregation interface.
- the first electronic device and the third electronic device are connected by a second type of transmission cable, and HDMI is not connected to the second electronic device.
- the data signal of the USB protocol can also be transmitted between the first electronic device and the third electronic device.
- the first electronic device can also supply power to the third electronic device.
- the second electronic device uses HDMI
- the first electronic device uses an aggregate interface
- the third electronic device uses a USB interface.
- the second electronic device, the first electronic device, and the third electronic device are connected by a second type of transmission cable. Take the transmission cable shown in Figure 15 as an example.
- the aggregation interface adopted by the first electronic device may be the first socket as shown in FIG. 15.
- the second electronic device may be a set-top box, a split DOCK, or a PC.
- the first electronic device may be a television (TV), a display, a smart screen, or the like.
- the third electronic device may be a portable terminal device.
- the first electronic device receives the second data signal from the second electronic device through the aggregation interface, the transmission cable, and HDMI.
- the second data signal includes a data signal of the HDMI protocol.
- the second electronic device can send high-definition video data (HDMI protocol data) to the first electronic device through HDMI, via the second type of cable and the aggregation interface.
- HDMI high-definition video data
- the data signal of the USB protocol can also be transmitted between the first electronic device and the third electronic device.
- the first electronic device can also supply power to the third electronic device.
- the first electronic device includes an aggregation interface and a processing device.
- the processing device may include an interface IC and a controller.
- the first electronic device receives the second data signal from the second electronic device through the aggregation interface, the transmission cable, and HDMI.
- the second data signal includes a data signal of the HDMI protocol.
- the controller detects the voltage of the detection terminal (D6) through the interface IC, and detects that the first electronic device is connected to the second electronic device and the third electronic device using the second type of transmission cable according to the voltage of D6.
- the control signal of the HDMI protocol can be transmitted (sent or received) between the first electronic device and the second electronic device through an aggregation interface, a transmission cable, and HDMI.
- the control signal sent by the first electronic device to the second electronic device is called the first control signal
- the control signal sent by the second electronic device to the first electronic device is called the second control signal.
- the controller After the controller generates the first control signal of the HDMI protocol, it sends the first control signal of the HDMI protocol to the second electronic device through the aggregate interface pins B8, A8, A6, and A7 through the interface IC, and the second electronic device receives it through HDMI The first control signal of the HDMI protocol, and the second electronic device performs further processing on the first control signal of the HDMI protocol.
- the second electronic device After the second electronic device generates the second control signal of the HDMI protocol, it is sent to the first electronic device through HDMI, and the first electronic device receives the second control signal of the HDMI protocol through pins B8, A8, A6, and A7 of the aggregate interface After the signal is sent, it is sent to the controller through the interface IC, and the controller performs further processing on the second control signal of the HDMI protocol.
- the second electronic device sends the HDMI protocol data signal to the aggregate interface of the first electronic device through HDMI and the second type of transmission cable, and the first electronic device uses pins A11, A10, D2, D3, C2 of the aggregate interface C3, B2, and B3 receive the HDMI protocol data signal from the second electronic device, and transmit it to the controller through the interface IC, so that the controller performs further processing on the HDMI protocol data signal.
- the first electronic device can supply power to the third electronic device through the power supply pins B4, B9, A4, and A9 of the aggregation interface, and via the second type transmission cable and the USB Type-C interface.
- the data signals can be sent or received through pins B11, B10, A2, and A3.
- the first electronic device and the third electronic device can also send data signals with a smaller bandwidth through pins B6, B7 or A6, A7, such as transferring file data.
- the first electronic device uses an aggregate interface
- the second electronic device uses a USB Type-C interface.
- the first electronic device and the second electronic device are connected by a third type of transmission cable. Take the transmission cable shown in Figure 16 as an example.
- the aggregate interface used by the first electronic device may be the first socket as shown in FIG. 16.
- the first electronic device may be a television (TV), a display, or a smart screen.
- the second electronic device may be a portable terminal device.
- the first electronic device may send the DP protocol signal to the second electronic device through the USB Type-C interface, the third-type transmission cable, and the aggregation interface.
- the first electronic device can supply power to the second electronic device through an aggregation interface, a third-type transmission cable, and a USB Type-C interface.
- the first electronic device receives the second data signal from the second electronic device through the aggregation interface, the transmission cable, and the USB interface.
- the second data signal includes a data signal of the DP protocol.
- the first electronic device includes an aggregation interface and a processing device.
- the processing device may include an interface IC and a controller.
- the first electronic device sends DP protocol data signals (such as high-definition video data) through pins A11, A10, B2, B3, A2, A3, B11, and B10 of the USB Type-C interface, and transmits them via the third type of transmission cable To the second electronic device.
- the pins A11, A10, D2, D3, C2, C3, B2, B3 of the aggregate interface of the second electronic device receive the data signal of the DP protocol, and then send it to the controller through the interface IC, and the controller responds to the data of the DP protocol The signal is processed further.
- the controller After the controller generates the control signal of the DP protocol, it sends the control signal (AUX+, AUX-) of the DP protocol to the second electronic device through the pins B8 and A8 of the aggregate interface through the interface IC, and the second electronic device uses USB Type-C
- the interface receives the control signal of the DP protocol, and the second electronic device performs further processing on the control signal of the DP protocol.
- the second electronic device After the second electronic device generates the DP protocol control signal, it sends it to the first electronic device through the USB Type-C interface.
- the first electronic device receives the DP protocol control signal through pins B8 and A8 of the aggregate interface, it passes The interface IC is sent to the controller, and the controller performs further processing on the control signal of the DP protocol.
- the second electronic device is a mobile phone, and the mobile phone can send high-definition video data to a display or a TV through a third-type transmission cable by pushing the screen, and then the display or the TV can display the high-definition video.
- the first electronic device can supply power to the second electronic device through the power supply pins B4, B9, A4, and A9 of the aggregation interface, and via the third type of transmission cable and the USB Type-C interface.
- pins B6, B7 or A6, A7 can be used to send USB protocol data signals with a smaller bandwidth, such as file data transmission.
- USB data the data signal of the USB protocol
- HDMI data the data signal of the HDMI protocol
- the processing device involved may include one or more chips, or one or more logic units.
- the processing device includes a controller and an interface IC as an example.
- the processing device can also be implemented by one or more controllers.
- the controller in the embodiment of the present application may be a central processing unit (central processing unit, CPU), or other general-purpose processors, digital signal processors (digital signal processors, DSP), and application-specific integrated circuits. (application specific integrated circuit, ASIC), field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof.
- the general-purpose processor can be a microprocessor or any conventional controller.
- the electronic device may also include a memory for storing instructions executed by the processing device or storing protocol-related information, data signals, and the like.
- the memory may be random access memory (RAM), flash memory, read-only memory (Read-Only Memory, ROM), programmable read-only memory (programmable ROM, PROM), erasable and programmable Read-only memory (erasable PROM, EPROM), electrically erasable programmable read-only memory (EPROM, EEPROM), register, hard disk, mobile hard disk, CD-ROM or any other form of storage medium known in the art.
- this application can be provided as a method, a system, or a computer program product. Therefore, this application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
- a computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
- These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
- the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
- These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
- the instructions provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Information Transfer Systems (AREA)
- Dc Digital Transmission (AREA)
Abstract
一种传输接口、传输线缆、电子设备及信号传输方法,能够满足高速媒体流的传输要求。在具有USB接口功能的第一端口的基础上进行扩充,比如在第一端口的两侧分别扩充端口,比如称为第一扩充端口和第二扩充端口。第一扩充端口至少包括一对第一差分传输线端子,第二扩充端口至少包括一对第二差分传输线端子。第一差分传输线端子和第二差分传输线端子均支持传输多媒体数据。另外,传输接口中的两个扩充端口中还增加供电的电源端子来增加供电能力。传输接口还兼容与采用HDMI、USB接口的电子设备耦合。
Description
本申请涉及信息技术领域,尤其涉及一种传输接口、传输线缆、电子设备及信号传输方法。
随着移动互联网的发展,用户对传输速率以及传输功能的需求越来越高,因此电子设备需要支持多种类型的接口协议来满足数据传输速率以及传输功能的需求。
通用串行总线(universal serial bus,USB)类型(Type)-C接口设计小巧,并且支持电能传输(Power Delivery)等功能,已迅速成为移动消费类电子设备的默认接口。但是USB Type-C无法满足高速媒体流(包括视频流和/或音频流)的传输要求。
发明内容
本申请提供一种传输接口、传输线缆、电子设备及信号传输方法,能够满足高速媒体流的传输要求。
第一方面,本申请实施例提供一种传输接口,包括第一端口,第一扩充端口和第二扩充端口,第一扩充端口和第二扩充端口位于第一端口的两端,第一端口具备通用串行总线USB接口的功能;其中,第一扩充端口至少包括一对第一差分传输线端子,第二扩充端口至少包括一对第二差分传输线端子,第一差分传输线端子支持第一数据信号的双向传输,第一数据信号包括多媒体数据,第二差分传输线端子支持第一数据信号的双向传输。
上述方案中,在具有USB接口功能的第一端口的基础上进行扩充,增加用于传输多媒体数据的差分传输线端子,从而增加了高速多媒体流的传输通道,提高数据信号传输带宽。
在一种可能的设计中,第一扩充端口还包括第一接地端子和至少一个第一电源端子,第二扩充端口还包括第二接地端子和至少一个第二电源端子。
上述设计中,传输接口通过增加供电的电源端子来增加供电能力。
在一种可能的设计中,第一电源端子包括两个相邻且电连接的标准电源端子;所述第二电源端子包括两个相邻且电连接的标准电源端子。
上述设计中,第一电源端子和第二电源端子,均可以采用两个标准的电源端子进行电连接来实现,即两个相邻的标准电源端子电连接后作为一个电源端子使用,可以增加通流能力,进一步增加传输接口的供电能力。
在一种可能的设计中,所述第一电源端子占用的空间包括两个相邻的标准电源端子占用的空间以及两个相邻的标准电源端子之间的间隙,所述第二电源端子占用的空间包括两个相邻的标准电源端子占用的空间以及两个相邻的标准电源端子之间的间隙。比如,USB Type-C接口中的电源端子为标准电源端子。
上述设计中,两个相邻的标准电源端子之间的间隙被打通后,两个相邻的标准电源端子和该两个相邻的标准电源端子之间的间隙共同形成一个电源端子,即原来两个相邻的标准电源端子间距的无通流能力的部分(绝缘栅格),被打通后,具备通流能力。通过上述方案,使得第一电源端子和第二电源端子在一定程度上能够达到6个电源端子的通流效果。 上述方案采用的增加电源端子的设计,使得聚合接口的供电能力可能达到原来的USB Type-C接口的供电能力的2.5倍,可能达到250W的供电能力。
在一种可能的设计中,本申请实施例中除第一电源端子和第二电源端子以外,其它的端子占用的空间均相同,或者说端子采用的金属导体的大小相同。或者说,本申请实施例中除第一电源端子和第二电源端子以外,其它的端子占用的空间均等于标准电源端子占用的空间,或者说,其它的端子采用的金属导体的大小等于标准电源端子的金属导体的大小。
在一种可能的设计中,第一端口为USB接口,第一端口支持连接适配USB接口的插头。上述设计中,传输接口的第一端口部分兼容连接USB接口的插头,使得该传输接口兼容于现有的USB接口的插头以及兼容现有的具有USB接口的电子设备。
在一种可能的设计中,第一端口包括第一控制信号端子和第二控制信号端子;其中,第一控制信号端子支持第一协议的控制信号的双向传输;第二控制信号端子支持第一协议的控制信号的双向传输。
上述设计中,复用USB接口的两个传输控制信号的端子可以用来传输第一协议的控制信号,使得本申请传输接口可以支持新定义的协议,因而可以提高端子利用率。
在一种可能的设计中,第一控制信号端子和第二控制信号端子在第一端口中旋转对称排布。
在一种可能的设计中,第一控制信号端子还支持如下至少一项的双向传输:USB协议的控制信号、高清多媒体接口HDMI协议的控制信号或者数字式视频接口DP协议的控制信号;第二控制信号端子还支持如下至少一项的双向传输:USB协议的控制信号、HDMI协议的控制信号或者DP协议的控制信号。
上述设计中,复用USB接口的两个传输控制信号的端子可以用来传输第一协议的控制信号,还可以用来传输其它协议的控制信号,提高兼容度。比如两个传输控制信号的端子支持HDMI协议的控制信号,兼容采用HDMI的电子设备,使得采用HMDI的电子设备与采用本申请提供的传输接口的电子设备能够进行信号传输。比如两个传输控制信号的端子支持DP协议的控制信号和USB协议的控制信号,兼容采用USB的电子设备,使得采用USB接口的电子设备与采用本申请提供的传输接口的电子设备能够进行USB协议和DP的控制信号的传输。
在一种可能的设计中,第一端口包括一对第三差分传输线端子和一对第四差分传输线端子;其中,第三差分传输线端子支持第一数据信号的双向传输或支持USB协议的数据信号的发送,第四差分传输线端子支持第一数据信号的双向传输或支持USB协议的数据信号的接收。
上述设计中,复用USB接口的差分传输线端子用来传输第一数据信号或USB协议的数据信号,提高兼容度。比如第三差分传输线端子和第四差分传输线端子支持传输第一数据信号。第一数据信号包括HDMI协议的数据信号、DP协议的数据信号或者第一协议的数据信号。比如,第三差分传输线端子和第四差分传输线端子支持HDMI协议的数据信号,能够兼容采用HDMI的电子设备,使得采用HMDI的电子设备与采用本申请提供的传输接口的电子设备能够进行数据信号传输。比如,第三差分传输线端子和第四差分传输线端子支持DP协议的数据信号、USB协议的数据信号,能够兼容采用USB的电子设备,使得采用USB接口的电子设备与采用本申请提供的传输接口的电子设备能够进行数据信号传输。
在一种可能的设计中,第一扩充端口还包括:检测端子,用于检测传输接口所连接的 传输线缆的类型。
上述设计中,在扩充端口中增加检测端子,并通过检测端子检测的传输线缆的类型对上述提及的第一差分传输线端子、第二差分传输线端子、第三差分传输线端子、第四差分传输线端子传输的数据信号的进行控制,以及对第一控制信号端子和第二控制信号端子传输的控制信号进行控制,使得能够对采用HDMI或者USB接口的电子设备进行兼容。
在一种可能的设计中,传输线缆的类型包括以下的至少一项:两端插头采用的接口均为所述传输接口的第一类型的传输线缆;第一端插头采用的接口为所述传输接口,第二端插头采用的接口为HDMI,第三端插头采用的接口为USB接口的第二类型的传输线缆;一端插头采用的接口为所述传输接口,另一端插头采用的接口为USB接口的第三类型的传输线缆;一端插头采用的接口为所述传输接口,另一端插头采用的接口为HDMI的第四类型的传输线缆。
在一种可能的设计中,检测端子检测的传输接口连接的传输线缆的类型,用于指示第一控制信号端子和第二控制信号端子传输的控制信号的类型;检测端子检测的传输接口连接的传输线缆的类型,用于指示第三差分传输线端子和第四差分传输线端子传输的数据信号的类型;以及检测端子指示的传输接口连接的传输线缆的类型,用于指示第一差分传输线端子和第二差分传输端子传输的数据信号的类型。
需要说明的是,检测端子检测到传输线缆的类型后,可以生成与传输线缆的类型对应的指示信号,指示信号用来指示第一控制信号端子和第二控制信号端子传输的控制信号的类型,还用于指示第一差分传输线端子、第二差分传输端子、第三差分传输线端子和第四差分传输线端子传输的数据信号的类型。
上述设计中,在扩充端口中增加检测端子,并通过检测端子检测的传输线缆的类型对上述提及的第一差分传输线端子、第二差分传输线端子、第三差分传输线端子、第四差分传输线端子传输的数据信号的进行控制,以及对第一控制信号端子和第二控制信号端子传输的控制信号进行控制,使得能够对采用HDMI或者USB接口的电子设备进行兼容。
在一种可能的设计中,当检测端子指示传输接口连接第一类型的传输线缆时,第一控制信号端子支持第一协议的控制信号的双向传输,第二控制信号端子支持第一协议的控制信号的双向传输;或者,当检测端子指示传输接口连接第三类型的传输线缆时,第一控制信号端子支持USB协议的控制信号或者DP协议的控制信号的双向传输,第二控制信号端子支持USB协议的控制信号或者DP协议的控制信号的双向传输,第一控制信号端子与第二控制信号端子传输的控制信号所属的协议相同;或者,当检测端子指示传输接口连接第四类型的传输线缆时,第一控制信号端子支持HDMI协议的控制信号的双向传输,第二控制信道端子支持HDMI协议的控制信号的双向传输。
在一种可能的设计中,第一端口还包括一对第五差分传输线端子和一对第六差分传输线端子,第五差分传输线端子和第六差分传输线端子均支持USB协议的数据信号的双向传输和HDMI协议的控制信号的双向传输,第五差分传输线端子的传输速率和第六差分传输线端子的传输速率均为第一速率,第三差分传输线端子的传输速率和第四差分传输线端子的传输速率均为第二速率,第一速率小于或者等于第二速率;
当检测端子指示传输接口连接第二类型的传输线缆时,第一控制信号端子支持HDMI协议的控制信号的双向传输,第二控制信号端子支持HDMI协议的控制信号的双向传输;第五差分传输线端子支持USB协议的数据信号的双向传输,第六差分传输线端子支持 HDMI协议的控制信号的双向传输;或者,第五差分传输线端子支持HDMI协议的控制信号的双向传输,第六差分传输线端子支持USB协议的数据信号的双向传输。
通过上述设计,由于HDMI协议的控制信号包括4种,通过第一控制信号端子、第二控制信号端子,再结合一对第五差分传输线端子或者一对第六差分传输线端子中一对差分传输线端子来传输4种HDMI协议的控制信号,实现本申请实施例提供的传输接口能够兼容与采用HDMI的电子设备连接。一对第五差分传输线端子或者一对第六差分传输线端子中一对差分传输线端子还能用于传输USB协议的数据信号,进一步实现本申请实施例提供的传输接口能够兼容与采用HDMI的电子设备连接的同时,还能够兼容与采用USB接口的电子设备连接。
在一种可能的设计中,当检测端子检测传输接口连接第一类型的传输线缆时,第三差分传输线端子支持第一数据信号的双向传输,第四差分传输线端子支持第一数据信号的双向传输,并且第一数据信号包括第一协议的数据信号、HDMI协议的数据信号或者DP协议的数据信号中的至少一项;或者,当检测端子检测传输接口连接第三类型的传输线缆时,第三差分传输线端子指示DP协议的数据信号的双向传输或者USB协议的数据信号的发送,第四差分传输线端子支持DP协议的数据信号的双向传输或USB协议的数据信号的接收,并且第一数据信号包括DP协议的数据信号;或者,当检测端子检测传输接口连接第四类型的传输线缆,第三差分传输线端子支持HDMI协议的数据信号的双向传输,第四差分传输线端子支持HDMI协议的数据信号的双向传输,并且第一数据信号包括HDMI协议的数据信号。
在一种可能的设计中,第一端口还包括一对第七差分传输线端子和一对第八差分传输线端子;当检测端子检测传输接口连接第二类型的传输线缆时,第三差分传输线端子和第四差分传输线端子支持HDMI协议的数据信号的双向传输,第七差分传输线端子支持USB协议的数据信号的发送,第八差分传输线端子支持USB协议的数据信号的接收,第一数据信号包括HDMI协议的数据信号。
在一种可能的设计中,第一扩充端口和第二扩充端口旋转对称排布在第一端口的两侧。
在一种可能的设计中,第一端口为USB类型Type C接口。
第二方面,本申请实施例提供一种传输线缆,包括第一插头、第二插头以及第一传输线;第一插头采用的接口为传输接口,所述传输接口包括第一端口,第一扩充端口和第二扩充端口,所述第一扩充端口和所述第二扩充端口位于所述第一端口的两端,所述第一端口具备通用串行总线USB接口的功能;其中,所述第一扩充端口至少包括一对第一差分传输线端子,所述第二扩充端口至少包括一对第二差分传输线端子,所述第一差分传输线端子支持第一数据信号的双向传输,所述第一数据信号包括多媒体数据,所述第二差分传输线端子支持所述第一数据信号的双向传输;所述第二插头采用的接口为所述传输接口,或者通用串行总线USB接口,或者高清多媒体接口HDMI。
通过上述设计,使得包括传输接口的电子设备能够连接不同的其它接口类型的电子设备。
在一种可能的设计中,第二插头采用的接口为USB接口时,传输线缆还包括第三插头和第二传输线;第三插头采用的接口为HDMI;第二传输线用于连接第三插头和第一插头。
在一种可能的设计中,第一扩充端口还包括第一接地端子和至少一个第一电源端子,第二扩充端口还包括第二接地端子和至少一个第二电源端子。上述设计中,传输接口通过 增加供电的电源端子来增加供电能力。
在一种可能的设计中,第一电源端子占用的空间为两个相邻的标准电源端子;第二电源端子占用的空间为两个相邻的标准电源端子。
在一种可能的设计中,所述第一电源端子占用的空间还包括相邻的标准电源端子的间隙,所述第二电源端子占用的空间还包括相邻的标准电源端子的间隙。比如,USB接口中的电源端子为标准电源端子。
在一种可能的设计中,第一插头和第二插头采用的接口均为传输接口时,传输接口中包括的至少一个第一电源端子、至少一个第二电源端子以及第一端口包括的电源端子中的至少一个电源端子用于实现供电。第一插头耦合的电子设备能够通过至少一个第一电源端子、至少一个第二电源端子以及第一端口包括的电源端子中的至少一个电源端子为第二插头耦合的电子设备供电,同样,第二插头耦合的电子设备能够通过至少一个第一电源端子、至少一个第二电源端子以及第一端口包括的电源端子中的至少一个电源端子为第一插头耦合的电子设备供电。
在一种可能的设计中,第一扩充端口还包括检测端子。第一插头耦合的电子设备能够通过检测端子检测第二插头所采用的接口类型,即检测当前传输线缆的类型。
在一种可能的设计中,第一端口还包括一对第三差分传输线端子和一对第四差分传输线端子,第三差分传输线端子支持第一数据信号的双向传输和USB协议的数据信号的发送。第四差分传输线端子支持第一数据信号的双向传输和USB协议的数据信号的接收。第一端口还包括第一控制信号端子和第二控制信号端子,支持第一协议的控制信号、HDMI协议的控制信号、DP协议的控制信号或者USB协议的控制信号。
在一种可能的设计中,第二插头采用的接口为传输接口时,至少一对第一差分传输线端子、至少一对第二差分传输线端子、一对第三差分传输线端子以及一对第四差分传输线端子用于传输第一数据信号,第一数据信号包括第一协议的数据信号、HDMI协议的数据信号、或者DP协议的数据信号中的一项。
在一种可能的设计中,第二插头采用的接口为传输接口时,第一控制信号端子和第二控制信号端子用于传输第一协议的控制信号。第一控制信号端子和第二控制信号端子,用于实现第一插头耦合的电子设备向第二插头耦合的电子设备发送第一协议的控制信号,或者用于实现第二插头耦合的电子设备向第一插头耦合的电子设备发送第一协议的控制信号。
在一种可能的设计中,第二插头采用的接口为HDMI时,至少一对第一差分传输线端子、至少一对第二差分传输线端子、一对第三差分传输线端子以及一对第四差分传输线端子用于传输HDMI协议的数据信号。至少一对第一差分传输线端子、至少一对第二差分传输线端子、一对第三差分传输线端子以及一对第四差分传输线端子用于实现第一插头耦合的电子设备向第二插头耦合的电子设备发送HDMI协议的数据信号,或者用于实现第二插头耦合的电子设备向第一插头耦合的电子设备发送HDMI的数据信号。
在一种可能的设计中,第二插头采用的接口为HDMI时,第一控制信号端子和第二控制信号端子用于传输HDMI协议的控制信号。第一端口还包括一对第五差分传输线端子和一对第六差分传输线端子。第五差分传输线端子,用于发送或接收HDMI协议的控制信号;或者第六差分传输线端子用于发送或者接收HDMI协议的控制信号。
第一控制信号端子和第二控制信号端子、一对第五差分传输线端子,用于实现第一插 头耦合的电子设备向第二插头耦合的电子设备发送第一协议的控制信号,或者用于实现第二插头耦合的电子设备向第一插头耦合的电子设备发送第一协议的控制信号。或者,第一控制信号端子和第二控制信号端子、一对第五差分传输线端子,用于实现第一插头耦合的电子设备向第二插头耦合的电子设备发送第一协议的控制信号,或者用于实现第二插头耦合的电子设备向第一插头耦合的电子设备发送第一协议的控制信号。
在一种可能的设计中,第二插头采用的接口为USB接口时,至少一对第一差分传输线端子、至少一对第二差分传输线端子、一对第三差分传输线端子以及一对第四差分传输线端子用于传输DP协议的数据信号。第一控制信号端子和第二控制信号端子用于传输DP协议的控制信号。
在一种可能的设计中,第二插头采用的接口为USB时,至少一对第一差分传输线端子、至少一对第二差分传输线端子、一对第三差分传输线端子以及一对第四差分传输线端子用于传输USB协议的数据信号。第一控制信号端子和第二控制信号端子用于传输USB协议的控制信号。
在一种可能的设计中,第二插头采用的接口为USB接口,第三插头采用的接口为HDMI,至少一对第一差分传输线端子、至少一对第二差分传输线端子、一对第三差分传输线端子以及一对第四差分传输线端子用于传输HDMI协议的数据信号。第一端口还包括一对第七差分传输线端子和一对第八差分传输线端子,第七差分传输线端子用于发送USB协议的数据信号,第八差分传输线端子用于接收USB协议的数据信号。
第三方面,本申请实施例提供一种电子设备,包括第一方面或者第一方面的任意设计所述的传输接口。
第四方面,本申请实施例提供一种电子设备,比如为第一电子设备。第一电子设备包括传输接口,第一电子设备通过传输接口与第二电子设备耦合;传输接口包括第一端口,第一扩充端口和第二扩充端口,第一扩充端口和第二扩充端口位于第一端口的两端,第一端口具备通用串行总线USB接口的功能,第一扩充端口至少包括一对第一差分传输线端子,第二扩充端口至少包括一对第二差分传输线端子。
在一种可能的设计中,电子设备还包括处理装置。处理装置用于:获取待发送的第一数据信号,通过至少一对差分传输线端子向第二电子设备发送第一数据信号,至少一对差分传输线端子包括至少一对第一差分传输线端子和/或至少一对第二差分传输线端子,第一数据信号包括第一多媒体数据;或者,通过至少一对差分传输线端子接收来自第二电子设备的第二数据信号,第二数据信号包括第二多媒体数据。
在一种可能的设计中,第一扩充端口还包括接地端子和至少一个第一电源端子,第二扩充端口还包括接地端子和至少一个第二电源端子。
在一种可能的设计中,第一电源端子包括两个相邻且电连接的标准电源端子;所述第二电源端子包括两个相邻且电连接的标准电源端子。
上述设计中,第一电源端子和第二电源端子,均可以采用两个标准的电源端子进行电连接来实现,即两个相邻的标准电源端子电连接后作为一个电源端子使用,可以增加通流能力,进一步增加传输接口的供电能力。
在一种可能的设计中,所述第一电源端子占用的空间包括两个相邻的标准电源端子占用的空间以及两个相邻的标准电源端子的间隙,所述第二电源端子占用的空间包括两个相邻的标准电源端子占用的空间以及所述两个相邻的标准电源端子的间隙。比如,USB Type-C接口中的电源端子为标准电源端子。
上述设计中,两个相邻的标准电源端子的间隙被打通形成一个电源端子,即原来两个相邻的标准电源端子间距的无通流能力的部分(绝缘栅格),被打通后,具备通流能力。通过上述方案,使得第一电源端子和第二电源端子在一定程度上能够达到6个电源端子的通流效果。上述方案采用的增加电源端子的设计,使得聚合接口的供电能力可能达到原来的USB Type-C接口的供电能力的2.5倍,可能达到250W的供电能力。
在一种可能的设计中,本申请实施例中除第一电源端子和第二电源端子以外,其它的端子占用的空间均相同,或者说端子采用的金属导体的大小相同。
在一种可能的设计中,所述处理装置,还用于:当第一电子设备连接电源时,且第二电子设备未连接电源时,通过至少一个第一电源端子、至少一个第二电源端子以及第一端口包括的电源端子中的至少一个电源端子为第二电子设备供电;或者,当第一电子设备未连接电源时,且第二电子设备连接电源时,通过至少一个第一电源端子、至少一个第二电源端子以及第一端口包括的电源端子中的至少一个电源端子接收来自第二电子设备的电能。
通过上述设计,在传输多媒体数据的同时,还能够实现供电。
在一种可能的设计中,第一电子设备的传输接口通过传输线缆连接至第二电子设备,第一扩充端口还包括检测端子、一对第三差分传输线端子和一对第四差分传输线端子;所述处理装置,还用于:通过一对差分传输线端子向第二电子设备发送第一数据信号之前,根据检测端子检测的传输接口连接的传输线缆的类型,控制一对差分传输线端子传输的数据信号的类型;或者,所述处理装置,还用于:通过一对差分传输线端子接收来自第二电子设备的第一数据信号之前,根据检测端子检测的传输接口连接的传输线缆的类型,控制至少一对差分传输线端子传输的数据信号的类型;其中,至少一对差分传输线端子具体包括至少一对第一差分传输线端子、至少一对第二差分传输线端子、一对第三差分传输线端子或者一对第四差分传输线端子中的至少一对。
在一种可能的设计中,第一端口还包括第一控制信号端子和第二控制信号端子;处理装置,还用于根据检测端子检测的传输接口连接的传输线缆的类型,控制第一控制信号端子和第二控制信号端子传输的控制信号的类型。
在一种可能的设计中,传输线缆的类型包括以下的至少一项:两端插头采用的接口均为所述传输接口的第一类型的传输线缆;第一端插头采用的接口为所述传输接口,第二端插头采用的接口为HDMI,第三端插头采用的接口为USB接口的第二类型的传输线缆;一端插头采用的接口为所述传输接口,另一端插头采用的接口为USB接口的第三类型的传输线缆;一端插头采用的接口为所述传输接口,另一端插头采用的接口为HDMI的第四类型的传输线缆。
在一种可能的设计中,所述处理装置,在根据检测端子检测的传输接口连接的传输线缆的类型,控制至少一对差分传输线端子发送的数据信号的类型时,具体用于:当检测端子检测的传输接口连接的传输线缆为第一类型的传输线缆时,通过至少一对第一差分传输线端子、至少一对第二差分传输线端子、一对第三差分传输线端子以及一对第四差分传输线端子向第二电子设备发送第一数据信号或接收来自第二电子设备的第二数据信号,第一数据信号和第二数据信号均包括第一协议的数据信号、HDMI协议的数据信号、或者DP协议的数据信号中的一项。
在一种可能的设计中,所述处理装置,在根据检测端子检测的传输接口连接的传输线缆的类型,控制至少一对差分传输线端子发送的数据信号的类型时,具体用于:当检测端子检测的传输接口连接的传输线缆为第三类型的传输线缆时,通过至少一对第一差分传输线端子和至少一对第二差分传输线端子向第二电子设备发送第一数据信号或接收来自第二电子设备的第二数据信号,第一数据信号和第二数据信号均为DP协议的数据信号。
上述设计,兼容连接USB接口,并实现了DP协议数据信号的传输。
在一种可能的设计中,所述处理装置,在根据检测端子检测的传输接口连接的传输线缆的类型,控制至少一对差分传输线端子发送的数据信号的类型时,具体用于:通过检测端子检测的传输接口连接的传输线缆为第四类型的传输线缆时,通过至少一对第一差分传输线端子、至少一对第二差分传输线端子、至少一对第三差分传输线端子以及至少一对第四差分传输线端子向第二电子设备发送第一数据信号或接收来自第二电子设备的第二数据信号,第一数据信号和第二数据信号均为HDMI协议的数据信号。
上述设计,兼容连接HDMI,并实现了HDMI协议数据信号的传输。
在一种可能的设计中,所述处理装置,在根据检测端子检测的传输接口连接的传输线缆的类型,控制至少一对差分传输线端子发送的数据信号的类型时,具体用于:当检测端子检测的第一电子设备的传输接口连接的传输线缆为第二类型的传输线缆时,通过至少一对第一差分传输线端子、至少一对第二差分传输线端子、至少一对第三差分传输线端子以及至少一对第四差分传输线端子向第二电子设备发送第一数据信号或接收来自第二电子设备的第二数据信号,第一数据信号和第二数据信号均为HDMI协议的数据信号;以及通过第一端口包括的一对第七差分传输线端子向第三电子设备发送USB协议的数据信号,或者通过第一端口包括的一对第八差分传输线端子接收来自第三电子设备的USB协议的数据信号;其中所述第一端插头耦合至所述第一电子设备,所述第二端插头耦合至所述第二电子设备,所述第三端插头耦合至所述第三电子设备。
上述设计,兼容连接HDMI和USB,并实现了HDMI协议数据信号和USB协议数据信号的同步传输。
在一种可能的设计中,根据检测端子检测的传输接口连接的传输线缆的类型,控制第一控制信号端子和第二控制信号端子传输的控制信号的类型,包括:当检测端子检测的传输接口连接的传输线缆为第一类型的传输线缆,通过第一控制信号端子和第二控制信号端子,向第二电子设备发送第一协议的控制信号或者接收来自第二电子设备的第一协议的控制信号;或者,当检测端子检测的传输接口连接的传输线缆为第三类型的传输线缆,通过第一控制信号端子和第二控制信号端子,向第二电子设备发送DP协议的控制信号或者接收来自第二电子设备的DP协议的控制信号;或者,当检测端子检测的传输接口连接的传输线缆为第三类型的传输线缆,通过第一控制信号端子和第二控制信号端子,向第二电子设备发送USB协议的控制信号或者接收来自第二电子设备的USB协议的控制信号;或者,当检测端子检测的传输接口连接的传输线缆为第四类型的传输线缆,通过第一控制信号端子和第二控制信号端子,向第二电子设备发送HDMI协议的控制信号或接收来自第二电子设备的HDMI协议的控制信号。
在一种可能的设计中,第一端口还包括一对第五差分传输线端子和一对第六差分传输线端子,根据检测端子检测的传输接口所连接的传输线缆的类型,控制第一控制信号端子和第二控制信号端子传输的控制信号的类型,包括:
当检测端子检测的传输接口连接的传输线缆为第二类型的传输线缆,其中所述第一端插头耦合至所述第一电子设备,所述第二端插头耦合至所述第二电子设备,所述第三端插头耦合至所述第三电子设备;通过第一控制信号端子、第二控制信号端子、一对第五差分传输线端子,向第二电子设备发送HDMI协议的控制信号或者接收来自第二电子设备的HDMI协议的控制信号。或者,通过第一控制信号端子、第二控制信号端子、一对第六差分传输线端子,向第二电子设备发送HDMI协议的控制信号或者接收来自第二电子设备的HDMI协议的控制信号。
第五方面,本申请实施例提供信号传输方法,方法应用于配置有传输接口的第一电子设备中,第一电子设备通过传输接口与第二电子设备耦合;传输接口包括第一端口,第一扩充端口和第二扩充端口,第一扩充端口和第二扩充端口位于第一端口的两端,第一端口具备通用串行总线USB接口的功能,第一扩充端口至少包括一对第一差分传输线端子,第二扩充端口至少包括一对第二差分传输线端子;上述方法包括:获取待发送的第一数据信号,通过至少一对差分传输线端子向第二电子设备发送第一数据信号,至少一对差分传输线端子包括至少一对第一差分传输线端子和/或至少一对第二差分传输线端子,第一数据信号包括第一多媒体数据;或者,通过至少一对差分传输线端子接收来自第二电子设备的第二数据信号,第二数据信号包括第二多媒体数据。
在一种可能的设计中,第一扩充端口还包括接地端子和至少一个电源端子,第二扩充端口还包括接地端子和至少一个电源端子;上述方法还包括:当第一电子设备连接电源时,且第二电子设备未连接电源时,通过第一扩充端口的至少一个电源端子、第二扩充端口的至少一个电源端子以及第一端口包括的电源端子中的至少一个电源端子为第二电子设备供电;或者,当第一电子设备未连接电源时,且第二电子设备连接电源时,通过第一扩充端口的至少一个电源端子、第二扩充端口的至少一个电源端子以及第一端口包括的电源端子中的至少一个电源端子接收来自第二电子设备的电能。
在一种可能的设计中,第一电子设备的传输接口通过传输线缆连接至第二电子设备,第一扩充端口还包括检测端子、至少一对第三差分传输线端子和至少一对第四差分传输线端子;通过至少一对差分传输线端子向第二电子设备发送第一数据信号之前,上述方法还包括:根据检测端子检测的传输接口连接的传输线缆的类型,控制至少一对差分传输线端子传输的数据信号的类型;或者,通过至少一对差分传输线端子接收来自第二电子设备的第一数据信号之前,上述方法还包括:根据检测端子检测的传输接口连接的传输线缆的类型,控制至少一对差分传输线端子传输的数据信号的类型;其中,至少一对差分传输线端子具体包括至少一对第一差分传输线端子、至少一对第二差分传输线端子、至少一对第三差分传输线端子或者至少一对第四差分传输线端子中的至少一对。
在一种可能的设计中,第一端口还包括第一控制信号端子和第二控制信号端子;方法还包括:根据检测端子检测的传输接口连接的传输线缆的类型,控制第一控制信号端子和第二控制信号端子传输的控制信号的类型。
在一种可能的设计中,传输线缆的类型包括以下的至少一项:两端插头采用的接口均为所述传输接口的第一类型的传输线缆;第一端插头采用的接口为所述传输接口,第二端插头采用的接口为HDMI,第三端插头采用的接口为USB接口的第二类型的传输线缆;一端插头采用的接口为所述传输接口,另一端插头采用的接口为USB接口的第三类型的传输线缆;一端插头采用的接口为所述传输接口,另一端插头采用的接口为HDMI的第四类型 的传输线缆。
在一种可能的设计中,根据检测端子检测的传输接口连接的传输线缆的类型,控制至少一对差分传输线端子发送的数据信号的类型,包括:当检测端子检测的传输接口连接的传输线缆为第一类型的传输线缆时,通过至少一对第一差分传输线端子、至少一对第二差分传输线端子、至少一对第三差分传输线端子以及至少一对第四差分传输线端子向第二电子设备发送第一数据信号或接收来自第二电子设备的第二数据信号,第一数据信号和第二数据信号均包括第一协议的数据信号、HDMI协议的数据信号、或者DP协议的数据信号中的一项;或者,当检测端子检测的传输接口连接的传输线缆为第三类型的传输线缆时,通过至少一对第一差分传输线端子和至少一对第二差分传输线端子向第二电子设备发送第一数据信号或接收来自第二电子设备的第二数据信号,第一数据信号和第二数据信号均为DP协议的数据信号;或者,通过检测端子检测的传输接口连接的传输线缆为第四类型的传输线缆时,通过至少一对第一差分传输线端子、至少一对第二差分传输线端子、至少一对第三差分传输线端子以及至少一对第四差分传输线端子向第二电子设备发送第一数据信号或接收来自第二电子设备的第二数据信号,第一数据信号和第二数据信号均为HDMI协议的数据信号。
在一种可能的设计中,根据检测端子检测的传输接口连接的传输线缆的类型,控制至少一对差分传输线端子传输的数据信号的类型,包括:当检测端子检测的第一电子设备的传输接口连接的传输线缆为第二类型的传输线缆时,通过至少一对第一差分传输线端子、至少一对第二差分传输线端子、至少一对第三差分传输线端子以及至少一对第四差分传输线端子向第二电子设备发送第一数据信号或接收来自第二电子设备的第二数据信号,第一数据信号和第二数据信号均为HDMI协议的数据信号;以及通过第一端口包括的一对第七差分传输线端子向第三电子设备发送USB协议的数据信号,或者通过第一端口包括的一对第八差分传输线端子接收来自第三电子设备的USB协议的数据信号;其中所述第一端插头耦合至所述第一电子设备,所述第二端插头耦合至所述第二电子设备,所述第三端插头耦合至所述第三电子设备。
在一种可能的设计中,根据检测端子检测的传输接口连接的传输线缆的类型,控制第一控制信号端子和第二控制信号端子传输的控制信号的类型,包括;当检测端子检测的传输接口连接的传输线缆为第一类型的传输线缆,通过第一控制信号端子和第二控制信号端子,向第二电子设备发送第一协议的控制信号或者接收来自第二电子设备的第一协议的控制信号;或者,当检测端子检测的传输接口连接的传输线缆为第三类型的传输线缆,通过第一控制信号端子和第二控制信号端子,向第二电子设备发送DP协议的控制信号或者接收来自第二电子设备的DP协议的控制信号;或者,当检测端子检测的传输接口连接的传输线缆为第三类型的传输线缆,通过第一控制信号端子和第二控制信号端子,向第二电子设备发送USB协议的控制信号或者接收来自第二电子设备的USB协议的控制信号;或者,当检测端子检测的传输接口连接的传输线缆为第四类型的传输线缆,通过第一控制信号端子和第二控制信号端子,向第二电子设备发送HDMI协议的控制信号或接收来自第二电子设备的HDMI协议的控制信号。
在一种可能的设计中,第一端口还包括一对第五差分传输线端子和一对第六差分传输线端子,根据检测端子检测的传输接口所连接的传输线缆的类型,控制第一控制信号端子和第二控制信号端子传输的控制信号的类型,包括;当检测端子检测的传输接口连接的传 输线缆为第二类型的传输线缆,其中所述第一端插头耦合至所述第一电子设备,所述第二端插头耦合至所述第二电子设备,所述第三端插头耦合至所述第三电子设备;通过第一控制信号端子、第二控制信号端子、一对第五差分传输线端子,向第二电子设备发送HDMI协议的控制信号或者接收来自第二电子设备的HDMI协议的控制信号。或者,通过第一控制信号端子、第二控制信号端子、一对第六差分传输线端子,向第二电子设备发送HDMI协议的控制信号或者接收来自第二电子设备的HDMI协议的控制信号。
第六方面,本申请提供一种计算机程序产品,该计算机程序产品包括计算机指令,当该计算机指令被执行时,使得前述第五方面或第五方面的任意可能的实现方式中的方法被执行。
第七方面,本申请提供了一种计算机可读存储介质,该计算机存储介质存储有计算机指令,当所述计算机指令被执行时,使得前述第五方面或第五方面的任意可能的实现方式中的方法被执行。
图1为HDMI引脚示意图;
图2为USB Type-C引脚示意图;
图3A为本申请实施例提供的第一种聚合接口引脚示意图;
图3B为本申请实施例提供的第二种聚合接口引脚示意图;
图3C为本申请实施例提供的第三种聚合接口引脚示意图;
图4为本申请实施例提供的支持双向传输的差分传输线端子一种可能的设计示意图;
图5为本申请实施例提供的支持双向传输的差分传输线端子另一种可能的设计示意图;
图6为本申请实施例提供的供电引脚示意图;
图7为本申请实施例提供的一种可能的第一协议的控制信号包含的功能示意图;
图8为本申请实施例提供的另一种可能的第一协议的控制信号包含的功能示意图;
图9为本申请实施例提供的第四种聚合接口引脚示意图;
图10为本申请实施例提供的第四差分传输线端子的一种可能的设计示意图;
图11为本申请实施例提供的第三差分传输线端子的一种可能的设计示意图;
图12为本申请实施例提供的第一控制信号端子的一种可能的设计示意图;
图13为本申请实施例提供的第二控制信号端子的一种可能的设计示意图;
图14为本申请实施例提供的第一类型的传输线缆示意图;
图15为本申请实施例提供的第二类型的传输线缆示意图;
图16为本申请实施例提供的第三类型的传输线缆示意图;
图17为本申请实施例提供的第四类型的传输线缆示意图;
图18为本申请实施例提供的场景一示意图;
图19为本申请实施例提供的场景二示意图;
图20为本申请实施例提供的场景三示意图;
图21为本申请实施例提供的场景四示意图。
下面将结合附图,对本申请实施例进行详细描述。
下面先对本申请实施例涉及到的用词和术语进行解释说明。
1)本申请涉及的术语“至少一个”,是指一个,或一个以上,即包括一个、两个、三个及以上;“多个”,是指两个,或两个以上,即包括两个、三个及以上。另外,需要理解的是,在本申请的描述中,“第一”、“第二”等词汇,仅用于区分描述的目的,而不能理解为指示或暗示相对重要性,也不能理解为指示或暗示顺序。“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B的情况,其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达,是指的这些项中的任意组合,包括单项(个)或复数项(个)的任意组合。例如,a,b,或c中的至少一项(个),可以表示:a,b,c,a-b,a-c,b-c,或a-b-c,其中a,b,c可以是单个,也可以是多个。
2)本申请实施例中涉及的电子设备可以是显示器(或者称为显示屏)、电视机、投影仪或者智慧屏。智慧屏可以是家庭中的影音娱乐中心,更是信息共享中心、控制管理中心、多设备交互中心。电子设备也可以是视频播放设备,比如机顶盒、分体扩展坞(DOCK)或者个人计算机(personal computer,PC)等。电子设备还可以称为终端设备。终端设备也可以称为用户设备、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或者用户装置。终端设备可以是蜂窝电话、无绳电话、个人数字助理(personal digital assistant,PDA),具有无线通信功能的手持设备、计算设备或者无线调整解调器的其它处理设备、车载设备、可穿戴设备等。
3)本申请实施例中涉及到的术语两个端子采用“旋转对称”方式排布是指,将一个端子环绕对称中心旋转一个角度后与另一个端子重合。本申请实施例中旋转的角度为180°。本申请实施例中涉及到的术语“端子”(pin)也可以称为引脚(pin)或者管脚(pin)。
4)高清多媒体接口(high definition multimedia interface,HDMI)。HDMI是一种传输无压缩数字高清多媒体(视频和/或音频)的接口。在数据传输上,HDMI使用最小化传输差分信号(transition minimized differential signaling,TMDS)技术。TMDS技术是一种利用2个引脚间电压差来传输信号的技术,即差分传输技术。HDMI目前存在三种物理规格,分别称为HDMI Type-A、HDMI Type-B和HDMI Type-C。HDMI Type-A包括19个引脚。引脚也可以称为管脚或者端子。各个引脚定义的功能如图1所示。可以看出,HDMI Type-A有8个引脚用于传输HDMI协议的数据信号,即TMDS数据信号。TMDS数据信号包括TMDS数据0、TMDS数据1、TDMS数据2以及TDMS时钟。8个引脚的引脚编号分别为1、3、4、6、7、9、10和12。该8个引脚组成4对差分传输线端子,并连接到4对差分传输线(或者称为差分信号线)。此外,HDMI Type-A还包括屏蔽引脚、供电引脚、接地引脚以及传输控制信号的引脚等。屏蔽引脚用于防止信号之间的干扰以及减少电磁辐射。
具体的,参见表1所示为19个引脚的功能定义。
表1
Type–A的最宽处为14mm,高4.55mm。Type B有29根引脚,尺寸较大。Type–C与Type–A类似,存在19个引脚,仅在尺寸上有区别,Type–C的接口大小为10.5mm×2.5mm。
5)USB接口。USB是一种串口总线标准,也是一种输入输出接口的技术规范。USB接口目前存在三种物理规格,分别称为USB Type-A、USB Type-B和USB Type-C。USB Type-A一般用于个人电脑。USB Type-B一般可以用于打印机等。USB Type-C一般适用于移动便携式终端设备。
USB Type-C包括24个引脚。USB Type-C接口的引脚示意图如图2所示。可以看出,USB Type-C包括4对差分传输线引脚,用于实现TX/RX的功能,其中,包括两对用于发送数据信号的差分传输线引脚(或者说差分数据引脚):A2(TX1+)和A3(TX1-),B2(TX2+)和B3(TX2-);以及两对用于接收数据信号的差分传输线引脚(或者说差分数据引脚):B11(RX1+)和B10(RX1-),A11(RX2+)和A10(RX2-)。后续为了描述方便将差分数据引脚传输的数据信号称为差分数据信号。USB Type-C还包括2个通道配置(channel configuration,CC)信号引脚,用于功能协商。比如,可以用于判断设备插入的方向:正插或者反插。还可以用于协商接口上的供电功能、替换模式或者外设模式。外设模式支持通过USB Type-C接口传输模拟音频或调试信号等。替换模式支持USB Type-C接口传输压缩或无损的视频信号,比如DP协议的数据信号。USB Type-C还可以包括用于传输其它信号的引脚,比如边带使用(sideband use,SBU)信号的引脚,具体参见表2所示。
表2
其中,TX/RX(TX1、TX2、RX1和RX2)为USB3.1的差分数据信号。需要说明的是,TX1用于表示一对差分传输线端子所传输的差分数据信号(TX1+/-),同样RX1用于表示RX1+/-,其它的差分信号也采用同样的描述方式。USB3.1中,采用USB Type-C接口的电子设备的插入方向为正插时,采用A2、A3以及B10、B11作为USB3.1的数据信号的差分传输线端子。电子设备的插入方向为反插时,采用B2、B3以及A10、A11作为USB3.1数据信号的差分传输线端子。无论采用正插方向或者反插方向,都会有两对差分传输线引脚未被使用。USB Type-C还可以用于传输数字式视频接口(displayport,DP)信号。在DP模式下,USB3.1未被使用的两对差分信号线引脚可以用于传输DP数据信号(或者称为DP协议的数据信号)。因此,USB Type-C接口可以用于实现USB3.1+DP信号传输。另外,如果接收端仅需要DP信号,不需要USB3.1信号时,4对差分信号线引脚可以都用来发送DP数据信号。USB Type-C还包括两对差分传输线引脚(A6、A7以及B7、B7)来用于传输USB2.0数据信号,USB2.0数据信号为D+/D-。A8和B8为USB Type-C接口中的预留引脚,用于传输SBU信号。在不同的应用场景下,SBU信号具有不同的用途,例如SBU信号可以包括DP协议的控制信号或者数据信号。例如A8和B8作为音频传输通道或者麦克风传输通道,用于传输音频数据或者视频数据。DP协议的控制信号可以为附属(auxiliary,AUX)信号。USB Type-C接口还支持功率传输(power delivery,PD)协议,即具备供电功能。参见图2所示,GND为接地引脚,Vbus为电源引脚,USB Type-C接口中4个接地引脚和4个电源引脚构成4对供电引脚,用于实现供电。
目前电子设备的接口标准除了上述HDMI、USB接口外,还包括DP等。而随着移动互联网的发展,用户对传输速率以及传输功能的需求越来越高,因此电子设备需要支持多种类型的接口协议来满足数据传输速率以及传输功能的需求,如果一个电子设备同时支持多个接口,会提高产品的成本,并且制约产品的尺寸。从上述描述可以看出,HDMI支持视频传输,但是不支持功率传输(power delivery,PD)以及不支持传输多媒体数据以外的其它数据。另外,HDMI尺寸较大,不适用于便携式终端设备。USBType-C接口虽然能够支持PD以及支持传输多媒体数据以外的其它数据,但是USB Type-C数据通道数量存在限制,无法满足高速多媒体数据(包括视频数据和/或音频数据)的传输要求,另外目前的USB Type-C接口无法有效兼容HDMI协议。
基于此,本申请实施例提供一种传输接口,在具备USB接口功能的第一端口的基础上进行扩充,比如在第一端口的两侧分别扩充端口,比如称为第一扩充端口和第二扩充端口。第一扩充端口至少包括一对第一差分传输线端子,第二扩充端口至少包括一对第二差分传输线端子。第一差分传输线端子支持传输第一数据信号,第二差分传输线端子支持传输第一数据信号,该第一数据信号包括多媒体数据。第一数据信号可以是HDMI协议的数据信号、DP协议的数据信号,或者第一协议的数据信号。第一协议的数据信号可以为多媒体 数据的传输协议,可以是目前存在的多媒体传输协议,也可以是未来定义的多媒体传输协议,本申请对此不作限定。本申请实施例中涉及的传输包括接收和/或发送。本申请涉及的USB接口可以是USB Type-C接口、或者USB Type-A接口,还可以是未来出现的其它类型的USB接口,本申请实施例对此不作限定。本申请实施例提供的传输接口,也可以称为聚合接口,或者称为新接口(NEW口),也可以采用其它的名字,本申请实施例对此不作限定。后续描述时,将本申请实施例提供的传输接口称为聚合接口为例。
以第一端口具备USB Type-C接口的功能为例进行说明。第一端口具备USB Type-C接口的功能也就是第一端口支持适配USB接口。USB Type-C接口包括24个引脚,例如参见图2。在图2所示USB Type-C接口的两端分别增加至少一对差分传输线端子,参见图3A所示。示例性地,USB Type-C接口的两端分别增加相同数量的差分传输线端子对,并且采用旋转对称的方式排布在USB Type-C接口的两端,从而聚合接口可以支持正插或者反插。比如第一端口中的CC信号引脚用于进行功能协商,判断设备插入的方向:正插或者反插。图3A-图3C中以USB Type-C接口的两端分别增加一对差分传输线端子为例,为了描述方便,将其中一端增加的差分传输线端子称为第一差分传输线端子,将另一端增加的差分传输线端子称为第二差分传输线端子。第一差分传输线端子位于第一扩充端口,第二差分传输线端子位于第二扩充端口。第一差分传输线端子和第二差分传输线端子均为高速差分传输线端子。
第一端口中包括4对高速差分传输线端子,分别为一对第三差分传输线端子、一对第四差分传输线端子、一对第七差分传输线端子以及一对第八差分传输线端子。本申请实施例中在4对高速差分传输线端子的基础上,增加两对高速差分传输线端子。高速差分传输线的传输速率可以达到10吉比特每秒(GB/s)以上,比如,10GB/s-20GB/s,或者说高速差分传输线的带宽可以达到10G-20G。本申请实施例提供的聚合接口具备8K及以上高清视频传输能力。其中,8K高清显示分辨率的简称,比如为7680x4320像素(16:9),约每帧传输3300万像素图像。
一种示例中,聚合接口中包括的高速差分传输线端子具备发送功能也具备接收功能,即支持双向数据传输,高速差分传输线端子也可以称为双向数据传输端子。比如高速差分传输线端子支持发送和接收第一数据信号,也即,高速差分传输线端子既可以作为第一数据信号的发送端子,也可以作为第一数据信号的接收端子。第一数据信号包括多媒体数据。多媒体数据可以包括高清视频数据和/或大带宽的数据信号。比如,一对第一差分传输线端子、一对第二差分传输线端子、一对第三差分传输线端子、一对第四差分传输线端子、一对第七差分传输线端子和一对第八差分传输线端子均支持双向数据传输,即均具备发送功能和接收功能。
示例性地,参见图3B所示,一对第一差分传输线端子的引脚号分别为C2和C3,一对第二差分传输线端子的引脚号分别为D2和D3,一对第三差分传输线端子的引脚号分别为B2和B3,一对第四差分传输线端子的引脚号分别为A10和A11,一对第七差分传输线端子的引脚号分别为A2和A3,一对第八差分传输线端子的引脚号为B10和B11。B2、B3对应于一对支持双向数据传输的第三差分传输线端子,用于传输D0+、D0-信号。引脚C2、C3对应于第二差分传输线端子,用于传输D1+、D1-信号。A10、A11对应于一对支持双向数据传输的第四差分传输线端子,用于传输D3-、D3+信号。一对支持双向传输的第七差分传输线端子的引脚号为A2、A3,用于传输D4+、D4-信号,一对支持双向传输的 第八差分传输线端子的引脚号为B11、B10,用于传输D5+、D5-信号。D0-D5均表示双向的数据信号。
示例性地,聚合接口中通过6对高速差分传输线端子中的4对高速差分传输线端子来传输高清视频数据,通过其余两对高速差分传输线端子来实现大带宽的数据信号的双向传输。比如,参见图3B所示,引脚号为C2、C3的一对第一差分传输线端子、引脚号为D2和D3的一对第二差分传输线端子、引脚号B2和B3的一对第三差分传输线端子以及引脚号分别为A10和A11的一对第四差分传输线端子构成4路高清视频数据的传输通道。引脚号为A2和A3的一对第七差分传输线端子,引脚号为B10和B11的一对第八差分传输线用来实现大带宽数据的双向传输。大带宽的数据信号,比如可以是视频通话产生的多媒体数据,或者人工智能(artificial intelligence,AI)交互场景中产生的多媒体数据等。示例性的,AI交互场景,可以包括远程教育场景、广告推销、AR全息通话场景或者远程指导场景等。
示例性地,支持双向传输的高速差分传输线端子可以采用如图4所示的设计方式。图4中,T表示发送,R表示接收。在一种可能的示例中,引脚号为C2、C3的一对第一差分传输线端子、引脚号为D2和D3的一对第二差分传输线端子、引脚号B2和B3的一对第三差分传输线端子以及引脚号分别为A10和A11的一对第四差分传输线端子,引脚号为A2和A3的一对第七差分传输线端子,引脚号为B10和B11的一对第八差分传输线均采用图4所示的设计方式。
另外需要说明的是,对于两个电子设备来说,端子之间的数据发送和接收是相对的。比如第一电子设备与第二电子设备连接,针对其中第一电子设备来说,端子1属于发送端子,则针对第二电子设备来说,与端子1连通的端子属于接收端子。
另一种示例中,聚合接口中包括的高速差分传输线端子中的一部分具备发送功能也具备接收功能,即支持双向数据传输,另一部分仅具备发送功能或者仅具备接收功能。
示例性地,聚合接口中通过6对高速差分传输线端子中的4对高速差分传输线端子支持双向数据传输,可以用于发送或者接收高清视频数据。其余两对高速差分传输线端子支持单向传输,其中一对高速差分传输线端子仅支持数据发送,另一对高速差分传输线端子仅支持数据接收。比如,一对第一差分传输线端子、一对第二差分传输线端子、一对第三差分传输线端子和一对第四差分传输线端子均支持双向数据传输,即均具备发送功能和接收功能,比如,一对第七差分传输线端子支持数据发送,一对第八差分传输线端子支持数据接收。该第七差分传输线端子和第八差分传输线端子组合来用于实现大带宽的数据信号的双向传输。比如,需要发送大带宽的数据信号时,通过第七差分传输线端子来实现,需要接收大带宽的数据信号时,通过第八差分传输线端子来实现。
图3A中,以4对高速差分传输线端子支持双向数据传输,其余两对高速差分传输线端子支持单向传输为例。
作为一种示例,图3A中4对支持双向传输的高速差分传输线端子的引脚号分别为B2、B3、C2、C3、D2、D3、A10、A11。其中,引脚B2、B3对应于一对支持双向数据传输的第三差分传输线端子,用于传输D0+、D0-信号。引脚C2、C3对应于第一差分传输线端子,用于传输D1+、D1-信号。引脚D2和D3对应于第二差分传输线端子,用于传输D2+、D2-信号。引脚A10、A11对应于一对支持双向数据传输的第四差分传输线端子,用于传输D3-、D3+信号。一对支持单向数据发送的第七差分传输线端子的引脚号为A2、A3,用于传输 TX1+、TX1-信号,支持单向数据接收的第八差分传输线端子的引脚号为B11、B10,用于传输RX1+、RX1-信号。TX1+、TX1-信号、以及RX1+、RX1-信号包括大带宽的数据信号或者USB协议的数据信号(比如USB3.0的数据信号)。大带宽的数据信号可以采用USB协议,也可以其它数据信号的协议,此处不作具体限定。
示例性地,支持双向传输的高速差分传输线端子可以采用如图4所示的设计方式。在图3A中,引脚号为C2、C3的一对第一差分传输线端子、引脚号为D2和D3的一对第二差分传输线端子、引脚号B2和B3的一对第三差分传输线端子以及引脚号分别为A10和A11的一对第四差分传输线端子均采用图4所示的设计方式。
图3C中,以4对支持双向传输的高速差分传输线端子的引脚号分别为A2、A3、C2、C3、D2、D3、B10、B11为例。其中,A2、A3对应于一对支持双向数据传输的第三差分传输线端子,用于传输D0+、D0-信号。引脚C2、C3对应于第二差分传输线端子,用于传输D1+、D1-信号。B10、B11对应于一对支持双向数据传输的第四差分传输线端子,用于传输D3-、D3+信号。一对支持单向数据发送的第七差分传输线端子的引脚号为B2、B3,用于传输TX2+、TX2-信号,支持单向数据接收的第八差分传输线端子的引脚号为A11、A10,用于传输RX2+、RX2-信号。
示例性地,支持双向传输的高速差分传输线端子可以采用如图4所示的设计方式。在图3C中,引脚号为C2、C3的一对第一差分传输线端子、引脚号为D2和D3的一对第二差分传输线端子、引脚号B2和B3的一对第三差分传输线端子以及引脚号分别为A10和A11的一对第四差分传输线端子均采用图4所示的设计方式。
在一种可能的实施方式中,本申请实施例中涉及到的支持双向传输数据信号的差分传输线端子能够兼容传输HDMI和DP协议的数据信号。支持数据信号的双向传输的差分传输线端子,每个传输方向均可以包括两个传输通道,其中一个传输通道用于传输HDMI协议的数据信号,另一个传输通道用于传输DP协议的数据信号。比如,参见图5所示,d0表示HDMI协议的数据信号,L0表示DP协议的数据信号。应理解的是,支持数据信号的双向传输的差分传输线端子,同一时间有一个传输方向,该传输方向的两个传输通道中一个传输通道用于传输数据信号。
需要说明的是,本申请实施例中涉及到的支持双向传输数据信号的差分传输线端子还可以支持传输USB协议的数据信号,还可以支持其它协议的数据信号,或者未来出现的协议的数据信号。本申请实施例提供的聚合接口中各个支持双向传输的高速差分传输线端子,可以根据需求设计的高速差分传输线端子具有双向数据传输通道,支持数据信号的双向传输,或者仅设计具有单向通道,比如数据信号的接收通道,仅用于接收数据信号,或者数据信号的发送通道,仅用于发送数据信号。
在原有的USB Type C接口中的4对高速差分传输线端子中均仅支持单向传输,其中两对高速差分传输线端子支持单向发送,引脚号分别为B2、B3、A2、A3,分别用于发送TX1和TX2,另外两对高速差分传输线端子支持单向接收,引脚号分别为B10、B11、A10和A11,分别用于接收RX1和RX2。为了减少针对原有USB Type C接口的功能的改动,在本申请实施例中,将原有USB Type C接口中B2、B3、A2、A3、B10、B11、A10和A11构成的4对高速差分传输线端子中,至少两对差分传输线端子用来支持双向数据传输。比如,图3A对应的实施例中,对原有USB Type C接口中的引脚号B2、B3、A10和A11的差分传输线端子进行改动,均支持双向数据传输。引脚号A2、A3、B10和B11的两对 差分传输线端子不作改动。又比如,图3B对应的实施例中,对原有USB Type C接口中4对差分传输线端子均进行改动,均支持双向数据传输。再比如,图3C对应的实施例中,对原有USB Type C接口中的引脚号A2、A3、B10和B11的差分传输线端子进行改动,均支持双向数据传输。引脚号B2、B3、A10和A11的两对差分传输线端子不作改动。
在一种可能的实施方式中,原有USB Type C中包括4对供电引脚。本申请实施例中提供的聚合接口中,第一扩充端口还可以包括接地端子和至少一个电源端子,和/或,第二扩充端口还可以包括接地端子和至少一个电源端子。通过在两个扩充端口中增加接地端子和至少一个电源端子,可以增加聚合接口的供电能力。
一种示例中,可以在两个扩充端口中增加相同数量的接地端子和电源端子。并且两个扩充端口中增加的接地端子和电源端子分别采用旋转对称方式排布在两个扩充端口中。从而聚合接口可以支持正插或者反插。为了便于区分,将第一扩充端口中的接地端子称为第一接地端子,将第二扩充端口中的接地端子称为第二接地端子。将第一扩充端口中的电源端子称为第一电源端子,将第二扩充端口中的电源端子称为第二电源端子。
比如,第一扩充端口具体包括第一电源端子和第一接地端子,第二扩充端口具体包括第二电源端子和第二接地端子。第一电源端子是通过两个或者多个相邻的标准电源端子级联排布构成的。第二电源端子是通过两个或者多个相邻的标准电源端子级联排布构成的。比如以两个级联排布为例,第一扩充端口的第一电源端子包括两个相邻且电连接的标准电源端子;第二扩充端口的第二电源端子包括两个相邻且电连接的标准电源端子。两个相邻的标准电源端子之间原本具有一个间距(或者间隙),该间距通常是绝缘的,以便将相邻的两个端子之间隔离开来,本申请实施例中,两个标准电源端子之间的绝缘间距被打通了,两个标准电源端子以及两个标准电源端子之间被打通的间距构成第一扩充端口第一电源端子或第二扩充端口的第二电源端子,该第一电源端子和第二电源端子的占用的空间相当于两个端子加一个间距,因此该第一电源端子和第二电源端子的通流能力得以提升。通过本申请实施例提供的电源端子级联排布设计,利用间距的空间增加供电通流能力。例如,参见图6所示,两个相邻的标准VCC端子采用级联排布设计,原来两个相邻的标准VCC端子间距的无通流能力的部分,通过级联排布后,具备通流能力。通过上述方案,使得4个VCC的端子在一定程度上能够达到6个VCC端子的通流效果。上述方案采用的增加4个VCC的端子的设计,使得聚合接口的供电能力可能达到原来的USB Type-C接口的供电能力的2.5倍,可能达到250W的供电能力。需要说明的是,本申请实施例中,除第一扩充端口包括的第一电源端子和第二扩充端口包括的第二电源端子以外的其它端子的规格均与标准电源端子的规格相同,即除第一扩充端口包括的第一电源端子和第二扩充端口包括的第二电源端子以外的其它端子与本申请实施例中的标准电源端子占用的空间大小相同或者说具有相同的尺寸。
在一种可选的情况中,本申请实施例中的标准电源端子的规格与现有USB typeC接口中的电源端子规格相同,例如该标准电源端子与USB typeC接口中的电源端子具有相同的尺寸或者说占用的空间位置大小相同。本申请实施例中,除第一扩充端口包括的第一电源端子和第二扩充端口包括的第二电源端子以外的其他端口均与标准电源端子具有相同的尺寸或者说占用相同的空间。
在一种可能的实现方式中,本申请实施例提供的聚合接口的第一端口中可以包括第一控制信号端子和第二控制信号端子。示例性的,参见图3A-图3C所示,第一控制信号端子 和第二控制信号端子可以为USB Type-C接口中的引脚B8和A8。第一控制信号端子和第二控制信号端子支持传输第一协议的控制信号。作为一种示例,第一控制信号端子和第二控制信号端子可以构成一对差分传输线端子,能够以差分信号的方式来传输第一协议的控制信号。为了描述方便可以将第一控制信号端子传输的控制信号称为New+,即第一控制信号端子用于传输控制信号的正信号,将第二控制信号端子传输的控制信号称为New-,即第二控制信号端子用于传输控制信号的负信号。图3A-图3C中,以第一控制信号端子为B8,第二控制信号端子为A8为例。
第一协议的控制信号可以具备如下一个或者多个控制信号的功能:HDMI协议的控制信号、USB协议的控制信号或者DP协议的控制信号。第一协议的控制信号还可以包括其它类型的控制信号,即引脚B8和A8还具有其它的功能,比如协商接收端的能力,获取接收端的接收能力信息,比如传输的数据信号采用的格式,传输的控制信号所采用的格式,传输的控制信号的类型等。比如,第一协议的控制信号可以是HDMI协议的控制信号、USB协议的控制信号或者DP协议的控制信号中的多个控制信号的叠加,也可以是新定义的一种控制信号,该控制信号具备HDMI协议的控制信号、USB协议的控制信号或者DP协议的控制信号中的一个或者多个控制信号的功能。需要说明的是,第一协议的控制信号可以是未来定义的协议的控制信号。
第一种可能的示例中,New+和New-可以具备HDMI协议和USB协议的控制信号的功能。例如,参见图7所示,控制信号New+和New-具备SBU1信号、SBU2信号、CEC信号、utility信号、SDA信号以及SCL信号的功能。应当理解,New+和New-均具有上述6种控制信号的功能。具体的,B8和A8采用时分复用的方式传输具备SBU1信号、SBU2信号、CEC信号、utility信号、SDA信号以及SCL信号的功能的控制信号。例如,第一协议的控制信号包括6个字段,6个字段的信息具备SBU1信号、SBU2信号、CEC信号、utility信号、SDA信号以及SCL信号的功能,不同的字段具备的功能不同。其中,CEC信号、SDA信号、SCL信号以及utility信号均为HDMI协议的控制信号。SBU1和SBU2是USB协议的控制信号。
比如,B8和A8可以构成一对差分传输线端子,用于传输SBU1信号、SBU2信号、CEC信号、utility信号、SDA信号以及SCL信号。例如,SBU1信号、SBU2信号为一对差分控制信号,CEC信号、utility信号、SDA信号以及SCL信号均可以拆分为一对差分控制信号,CEC信号拆分后的差分控制信号可以为CEC+/CEC-,utility信号拆分后的差分控制信号可以为utility+/utility-,SDA信号拆分后的差分控制信号可以为SDA+/SDA-,SCL信号拆分后的差分控制信号可以为SCL+/SCL-。
再比如,B8以及A8用于组合传输SBU1信号、SBU2信号、CEC信号、utility信号、SDA信号以及SCL信号,应当理解,SBU1和SBU2不能由同一个引脚传输,CEC和utility不能由同一个引脚传输,SDA和SCL不能由同一个引脚传输,示例性的,SBU1和SBU2一个由B8传输,另一个由A8传输,CEC和utility一个由B8传输,另一个由A8传输,SDA和SCL一个由B8传输,另一个由A8传输。
第二种可能的示例中,New+和New-可以具备DP协议和USB协议的控制信号的功能。例如,参见图8所示,第一控制信号端子(B8)和第二控制信号端子(A8)支持传输SBU1信号、SBU2信号、AUX+信号和AUX-信号。B8和A8构成一对差分传输线端子用于传输SBU1信号、SBU2信号、AUX+信号和AUX-信号。其中,SBU1信号、SBU2信号为一对 差分控制信号,AUX+信号和AUX-信号构成一对差分控制信号。比如,SBU1为正信号,SBU2为负信号,B8可以采用时分复用的方式传输SBU1和AUX+,A8采用时分复用方式传输SBU2和AUX-。例如,第一协议的控制信号包括2个字段,2个字段的信息具备SBU信号、AUX信号的功能,不同的字段具备不同的功能。
在结合上述两种可能的示例,当New+和New-具备HDMI协议和USB协议的控制信号的功能时,聚合接口支持HDMI和USB的双模传输,当New+和New-可以具备DP协议和USB协议的控制信号的功能时,聚合接口支持DP和USB的双模传输。参见表3所示,用于描述New+和New-的不同控制信号状态下聚合接口采用的传输模式。当传输模式为HDMI和USB的双模传输时,控制信号的状态为状态1,即通过第一控制信号端子(B8)和第二控制信号端子(A8)传输HDMI协议和USB协议的控制信号。当传输模式为DP和USB的双模传输时,控制信号的状态为状态2,即通过第一控制信号端子(B8)和第二控制信号端子(A8)传输DP协议和USB协议的控制信号。两个电子设备建立连接之后,发送端可以通过B8和A8获取接收端的接收能力信息,包括传输模式,然后根据传输模式确定传输的控制信号的状态,即传输的控制信号的类型。
表3
控制信号状态 | 传输模式 |
状态1(对应第一种可能的示例) | HDMI和USB的双模传输 |
状态2(对应第二种可能的示例) | DP和USB的双模传输 |
示例性地,包含上述聚合接口的电子设备可以与连接的另一电子设备之间通过New+或者New-,或者其它端子进行其它的功能协商,比如获取另一电子设备所支持的协议类型或者其它能够用于指示协议的参数值,进而确定电子设备与另一电子设备之间传输的控制信号的类型。具体细节后续详细描述,此处不进行重复描述。
在一种可能的实施方式中,本申请实施例提供的聚合接口能够兼容与HDMI、或者USB Type-C接口耦合。参见图9所示,为经过兼容设计后,聚合接口中各个端子的功能示意图。示例性的,引脚号为B2和B3的第三差分传输线端子既可以作为HDMI协议的数据信号和DP协议的数据信号的双向数据端子,还可以作为USB协议的数据信号的发送端子,引脚号为A10和A11的第四差分传输线端子既可以作为HDMI协议的数据信号和DP协议的数据信号的双向数据端子,还可以作为USB协议的数据信号的接收端子。
参见图10所示,为图9中引脚号为A10和A11的端子的一种示例性的兼容性设计原理示意图,其中,d0表示HDMI协议的数据信号,L0表示DP协议的数据信号,TX2表示USB协议的数据信号。具体的,该一对第四差分传输线端子支持发送HDMI协议的d0信号、DP协议的L0信号,还支持接收USB协议的RX2信号。参见图11所示,为图9中引脚号为B2和B3的端子的一种示例性的兼容性设计原理示意图,该一对第三差分传输线端子支持发送HDMI协议的d0信号、DP协议的L0信号,还支持发送USB协议的TX2信号。一种可能的场景中,机顶盒与显示屏通过聚合接口相连,显示屏中设置有摄像头, 显示屏获取到摄像头采集的视频数据后,可以通过一对第三差分传输线端子发送给机顶盒。
另一种示例中,本申请实施例针对第一控制信号端子和第二控制信号端子进行兼容设计。第一控制信号端子和第二控制信号端子支持传输第一类型的控制信号,还可以兼容具备传输HDMI协议的控制信号、USB协议的控制信号或者DP协议的控制信号能力。作为一种举例,参见图9所示,作为一种举例,第一控制信号端子(B8)可以用于传输New+、SBU1、SCL、AUX+中的一种。比如,参见图12所示,为第一控制信号端子(B8)的一种示例性的设计原理图,引脚B8用于发送或者接收New+、SBU1、SCL、AUX+中的一种。第二控制信号端子(A8)可以用于传输New-、SBU2、SDA、AUX-中的一种。比如,参见图13所示,为第二控制信号端子(A8)的一种示例性的设计原理图,引脚A8用于发送或者接收New-、SBU2、SDA、AUX-中的一种。
又一种示例中,HDMI协议的控制信号包括4种,为了兼容耦合HDMI,第一控制信号端子(B8)和第二控制信号端子(A8),用来传输两种HDMI协议的控制信号,可以复用第一端口中的一对第六差分传输线端子(引脚A6和A7)或者第五差分传输端子(引脚B6和B7)用来传输另外两种HDMI协议的控制信号。图9中,以复用A6和A7传输HDMI协议的数据信号为例。图9中,以A6支持传输CEC信号、A7支持传输utility信号为例。
在一种可能的实施方式中,包含聚合接口的两个电子设备建立连接后,可以通过聚合接口中的引脚CC1或者CC2来协商PD。正插或者反插也可以由CC1或CC2来确定。另外,本申请实施例提供的聚合接口也支持华为私有快充协议。该私有快充协议的协商可以通过复用Type USB-C的引脚B6和B7来协商。聚合接口也兼容具有USB2.0的功能,可以通过引脚B6和B7或者A6和A7进行USB2.0数据信号的传输。
需要说明的是,本申请实施例中描述的接口的形态包括座子(receptacle)和插头(plug)。作为一种示例,当接口应用到电子设备时,可以将该电子设备上的接口称为座子,当聚合接口应用到传输线缆时,可以将该传输线缆的接口称为插头。比如,图3A-图3C以及图9均为聚合接口的引脚示意图。聚合接口可以应用到电子设备上,也可以应用到适配电子设备的传输线缆上。比如,当聚合接口应用到电子设备时,可以将该电子设备上的聚合接口称为座子,当聚合接口应用到传输线缆时,可以将该传输线缆的聚合接口称为插头。
通过本申请实施例提供的实施方案,采用聚合接口的电子设备,能够与采用聚合接口、HDMI或者USB接口(采用USB协议和/或DP协议)的电子设备实现通信。基于此,本申请实施例还提供的几种类型的传输线缆。
(1)第一类型。第一类型的传输线缆的两端插头采用的接口为聚合接口。第一类型的传输线缆包括第一插头和第二插头,第一插头和第二插头采用的接口均为聚合接口。第一插头和第二插头可以通过传输线连接。参见图14所示,为一种可能的第一类型的传输线缆示意图。图14中的第一类型的传输线缆左侧为第一插头采用的聚合接口的引脚示意图。图14中的第一插头能够耦合第一座子。第一类型的传输线缆右侧为第二插头采用的聚合接口的引脚示意图。第一插头与第二插头采用的聚合接口相同,第二插头耦合的座子可以是第一座子。
(2)第二类型。第二类型的传输线缆包括三端,第一端插头的接口采用所述聚合接口,第二端插头的接口采用HDMI、第三端插头的接口采用为USB接口。即第二类型的传输线缆包括第一插头、第二插头以及第三插头。第一插头的接口为聚合接口,第二插头的接口为HDMI,第三插头的接口为USB接口,第一插头与第二插头通过第一传输线相连, 第一插头和第三插头通过第二传输线连接。
聚合接口中的第一端口中还包括一对第五差分传输线端子和一对第六差分传输线端子。比如,参见图9所示,一对第五差分传输线端子和一对第六差分传输线端子的引脚号可以是A6、A7和B6、B7。比如一对第五差分传输线端子的引脚号为A6、A7。一对第六差分传输线端子的引脚号为B6和B7。一种示例中,由于USB Type-C接口中引脚A6、A7和B6、B7不会同时被使用。比如在正插时,使用A6、A7发送或接收USB协议的数据信号(USB2.0的数据信号),反插时,使用B6和B7发送或接收USB协议的数据信号(USB2.0的数据信号)。本申请实施例可以复用未被USB Type-C接口使用的引脚用来传输HDMI的控制信号。另一种示例中,参见图9所示,无论接收端设备采用正插或者反插时,均使用B6、B7引脚发送或接收USB协议的数据信号(USB2.0的数据信号),即D+/D-,A6和A7引脚在支持发送或接收USB协议的数据信号(USB2.0的数据信号),还支持传输HDMI的控制信号。也即,A6和A7引脚可以被复用为HDMI控制信号的传输引脚。HDMI的控制信号包括4种分别为SCL、SDA、CEC和utility信号,因此可以通过A8、B8、A6和A7引脚,实现传输SCL、SDA、CEC和utility信号。作为一种举例,参见图15所示,A8引脚用于传输SDA信号,B8引脚用于传输SCL信号,A6用于传输CEC信号,A7用于传输Utility信号。
在设计聚合接口时,聚合接口中的第五差分传输线端子和第六差分传输线端子均支持USB协议的数据信号的双向传输和HDMI协议的控制信号的双向传输。比如,第五差分传输线端子的传输速率和第六差分传输线端子的传输速率均为第一速率,第三差分传输线端子的传输速率和第四差分传输线端子的传输速率均为第二速率,则第一速率小于或者等于第二速率。也就是,本申请实施例中的B6、B7、A6和A7的差分传输线端子可以是高速差分传输线端子,也可以是传输速率稍低于高速差分传输线端子的端子。
当一对第五差分传输端子被USB Type-C接口使用,用于传输(发送或接收)USB协议的数据信号(D+/D-),一对第六差分传输线端子和第一控制信号端子、第二控制信号端子用于传输HDMI协议的控制信号。当一对第六差分传输端子被USB Type-C接口使用,用于传输(发送或接收)USB协议的数据信号(D+/D-),一对第五差分传输线端子和第一控制信号端子、第二控制信号端子用于传输HDMI协议的控制信号。
聚合接口包括的四对支持双向传输的高速差分传输线端子可以用于传输HDMI协议的四个数据信号,分别为TMDS数据0、TMDS数据1、TMDS数据2以及TMDS时钟信号。在该场景下,D2、D3、C2、C3、B2、B3以及A10、A11用于传输HDMI协议的4路数据信号,分别可以为D0+/D0-、D1+/D1-、D2+/D2-以及D3+/D3-。即聚合接口为了兼容能够耦合HDMI,B2、B3在支持传输第一协议的数据信号的基础上,还支持用于发送HDMI协议的数据信号。
作为一种示例,参见图15所示,为一种可能的第三类型的传输线缆的示意图。图15中的第二类型的传输线缆左侧为第一插头采用的聚合接口的引脚示意图。图15中的第一插头能够耦合第一座子。
图16中描述有各个提供一种可能的传输线缆中各个端子之间的连接关系。第一插头和第三插头中引脚号为A1-A5、A9、A12、B1、B4、B6、B7以及B9-B12对应相连接。图16中B10、B11用于接收USB协议的数据信号,图16中通过RX1表示接收的USB协议的数据信号,A2、A3用于发送USB协议的数据信号,图16中通过TX1表示发送的USB 协议的数据信号。
需要说明的是,其中,由B8、A8、A6和A7这4个引脚用来实现传输4个HDMI的控制信号,分别为SCL、SDA、CEC和utility信号。而具体的,哪个引脚用于传输哪个控制信号,本申请不作具体限定,图15中以聚合接口中的B8和A8传输SCL和SDA,由A6和A7引脚传输CEC和utility信号为例。
(3)第三类型。第三类型的传输线缆的一端插头采用的接口为聚合接口,另一端为插头采用的接口为USB接口,比如USB Type-C接口。即第三类型的传输线缆包括第一插头和第二插头,第一插头的接口为聚合接口,第二插头的接口为USB Type-C接口。
该第三类型的传输线缆,一方面中,USB Type-C接口仅用于传输USB协议信号,该情况下,聚合接口中仅第一端口中的各个端子与USB Type-C接口中的各个端子一一对应连接。另一方面,USB Type-C接口还用于传输DP协议信号,该情况下,聚合接口中的4对支持双向传输的高速差分传输线端子用于传输DP协议的数据信号,第一控制信号端子和第二控制信号端子用于传输DP协议的控制信号,其它的电源端子以及接地端子可以用于实现供电。
作为一种示例,USB Type-C接口用于传输DP协议信号为例,参见图16所示,为一种可能的第三类型的传输线缆的示意图。图16中的第二类型的传输线缆右侧为第一插头采用的聚合接口的引脚示意图。图16中的第一插头能够耦合第一座子。图16中描述有各个提供一种可能的传输线缆中各个端子之间的连接关系。第一插头和第二插头中引脚号为A1、A4、A5、A9、A12、B1、B4、B5以及B9、B12对应相连接。图16中,聚合接口中引脚号A11、A10、D2、D3、C2、C3、B2以及B3对应引脚用来传输DP协议的数据信号。图17中聚合接口中引脚号A11、A10、D2、D3、C2、C3、B2以及B3分别与USB Type-C接口的A11、A10、B2、B3、A2、A3、B11、B10一一对应连接。需要说明的是,聚合接口的中A11、A10、D2、D3、C2、C3、B2以及B3的4对高速差分传输线端子与USB Type-C接口中的4对高速差分传输线端子一一对应连接即可,本申请对各个高速差分传输线端子对之间连接关系不作具体限定。
(4)第四类型。第四类型的传输线缆的一端插头采用的接口为聚合接口,另一端插头采用的接口为HDMI。即第四类型的传输线缆包括第一插头和第二插头,第一插头的接口为聚合接口,第二插头的接口为HDMI。
聚合接口中的第一端口中还包括一对第五差分传输线端子,比如,参见图9所示,一对第五差分传输线端子可以是A6、A7或者B6、B7。比如一对第五差分传输线端子的引脚号为A6、A7,HDMI的控制信号包括4种分别为SCL、SDA、CEC和utility信号,聚合接口可以通过引脚号为A8和B8的第一控制信号端子和第二控制信号端子,以及A6、A7,实现传输SCL、SDA、CEC和utility信号。HDMI协议数据信号的传输可以通过聚合接口的中A11、A10、D2、D3、C2、C3、B2以及B3组成的4对高速差分传输线端子来实现。聚合接口的中A11、A10、D2、D3、C2、C3、B2以及B3的4对高速差分传输线端子与HDMI中的4对高速差分传输线端子一一对应连接即可,本申请对各个高速差分传输线端子对之间连接关系不作具体限定。参见图17所示,示例性的提供一种可能的第四传输线缆的示意图。图17中的第二类型的传输线缆左侧为第一插头采用的聚合接口的引脚示意图。图17中的第一插头能够耦合第一座子。
HDMI的+5V的电源可以通过引脚D6来实现。HPD信号可以由聚合接口中的引脚C6 来实现。
在一种可能的实施方式中,为了能够实现检测上述不同的传输线缆的类型,在第一扩充端口或者第二扩充端口中包括检测端子,检测端子能够用于检测聚合接口所连接的传输线缆的类型,或者说检测包括所述聚合接口的电子设备所连接的电子设备的接口类型或者接口协议。检测端子可以通过引脚D6来实现,也可以通过引脚C6来实现。本申请实施例中以D6引脚作为检测端子为例。
示例性地,通过检测端子的电压值可以确定聚合接口所连接的传输线缆的类型。比如,参见表4所示,用于描述检测聚合接口所连接的传输线缆的类型的方式。
表4
例如,K1为0V,K2为2.5V,K3为5V,K4为5V。
第二类型的传输线缆和第三类型的传输线缆均可以采用5V的电压值,在该情况下,检测端子(D6)还可以用于为HDMI提供5V电压。另外,在第二类型的传输线缆和第三类型的传输线缆均可以采用5V的电压值的情况下,可以通过其它端子来确定是否已经耦合USB接口,比如A5(CC1)或B5(CC2)。
在一种可能的实施方式中,检测端子检测的聚合接口连接的传输线缆的类型,用于指示所述第一控制信号端子和所述第二控制信号端子传输的控制信号的类型;检测端子检测的所述聚合接口连接的传输线缆的类型,用于指示所述第三差分传输线端子和第四差分传输端子传输的数据信号的类型。
不同的传输线缆类型对应的不同的应用场景,在不同的应用场景中,聚合接口中不同的差分传输线端子传输的信号类型(或者信号协议)不同,比如第一差分传输线端子、第二差分传输线端子、第一控制信号端子和所述第二控制信号端子、第三差分传输线端子和第四差分传输端子等传输的信号类型(或者信号协议)不同。如下以第一电子设备配置有聚合接口为例。第一电子设备通过聚合接口与第二电子设备耦合为例。第一电子设备可以通过聚合接口向第二电子设备发信号,也可以通过聚合接口接收来自第二电子设备的信号。为了便于区分,将第一电子设备向第二电子设备发送的信号称为第一数据信号,第一电子设备接收的来自第二电子设备的信号称为第二数据信号。基于此,本申请实施例提供的数据信号传输方法可以包括S1和S2:
S1,第一电子设备获取待发送的第一数据信号,通过至少一对差分传输线端子向所述第二电子设备发送所述第一数据信号,所述至少一对差分传输线端子包括所述至少一对第一差分传输线端子和/或所述至少一对第二差分传输线端子,所述第一数据信号包括第一多 媒体数据。
S2,第一电子设备通过所述至少一对差分传输线端子接收来自所述第二电子设备的第二数据信号,所述第二数据信号包括第二多媒体数据。
下面结合具体应用场景对本申请实施例如何实现第一数据信号的发送以及第二数据信号的接收进行详细描述。
场景一
第一电子设备和第二电子设备均采用聚合接口。第一电子设备和第二电子设备通过第一类型的传输线缆进行连接。第一类型的传输线缆的两端插头采用的接口均为聚合接口。以图14所示的传输线缆为例。第一电子设备与第二电子设备采用的聚合接口可以是如图14所示的第一座子。一种方式中,第一电子设备为源端设备、第二电子设备为接收端设备,比如第一电子设备可以是机顶盒、分体DOCK、或者PC等。第二电子设备可以是电视机(TV)、显示器或者智慧屏等。另一种方式中,第一电子设备可以是接收端设备,第二电子设备为源端设备,比如第二电子设备可以是机顶盒、分体DOCK、或者PC等。第一电子设备可以是电视机(TV)、显示器或者智慧屏等。
如下描述时,以第一电子设备为源端设备、第二电子设备为接收端设备为例。第一电子设备可以通过聚合接口向第二电子设备发送高清视频数据。另外第一电子设备与第二电子设备之间还可以传输大带宽数据,比如视频通话产生的数据或者AI交互视频通话内容。比如第一电子设备为PC机、第二电子设备为智慧屏,第一电子设备可以向第二电子设备发送需要显示的高清视频数据;并且第一电子设备的用户在采用第一电子设备上的应用进行视频通话时,第一电子设备可以将视频通话数据发送给第二电子设备,由第二电子设备呈现给用户。另外,第一电子设备或者第二电子设备中的其中一个电子设备无需连接电源线,可以由连接电源线的电子设备通过传输线缆为未连接电源线的电子设备供电。
比如,参见图18所示,第一电子设备和第二电子设备中均包括聚合接口以及处理装置。示例性地,处理装置中可以包括接口集成电路芯片(integrated circuit chip,IC)以及控制器。为了便于区分,将第一电子设备的聚合接口称为聚合接口1,第二电子设备的聚合接口称为聚合接口2,第一电子设备的接口IC称为接口IC1,将第二电子设备的接口IC称为接口IC2,将第一电子设备的控制器称为控制器1,第二电子设备的控制器称为控制器2。聚合接口1与聚合接口2之间通过第一类型的传输线缆连接。第一电子设备可以通过聚合接口1、传输线缆以及聚合接口2向第二电子设备发送第一数据信号。第一电子设备与第二电子设备之间可以通过聚合接口1、传输线缆以及聚合接口2之间传输(发送或接收)第一协议的控制信号。为了便于区分,将第一电子设备向第二电子设备发送的控制信号称为第一控制信号,将第二电子设备向第一电子设备发送的控制信号称为第二控制信号。
图18中以第一数据信号为HDMI协议的数据信号或者DP协议的数据信号为例。图18中HDMI/DP表示HDMI协议的数据信号/DP协议的数据信号。
一种示例中,控制器1通过接口IC1检测该检测端子(D6)的电压,根据D6的电压检测到第一电子设备与第二电子设备采用第一类型的传输线缆相连,即第一电子设备与第二电子设备均采用聚合接口。
控制器1生成第一协议的第一控制信号后,通过接口IC1将第一协议的控制信号通过聚合接口1的引脚B8和A8发送给第二电子设备。第二电子设备通过聚合接口2接收第一 协议的第一控制信号后,通过接口IC2将第一协议的第一控制信号发送给控制器2。进而控制器2针对第一协议的第一控制信号执行进一步的处理。控制器2生成第一协议的第二控制信号后,通过接口IC2将第一协议的第二控制信号通过聚合接口2的引脚B8和A8发送给第一电子设备。第一电子设备通过聚合接口1接收第一协议的第二控制信号后,通过接口IC1将第一协议的第二控制信号发送给控制器1。进而控制器1针对第一协议的第二控制信号执行进一步的处理。
第一电子设备与第二电子设备之间可以通过第一协议的第一控制信号和第二控制信号来协商双方所采用的数据信号的类型等信息。比如数据信号的类型为HDMI协议的数据信号或者DP协议的数据信号。
控制器1获取到第一数据信号(HDMI协议的数据信号或者DP协议的数据信号)后,通过接口IC1针对第一数据信号(HDMI协议的数据信号或者DP协议的数据信号)通过聚合接口1的引脚A11、A10、D2、D3、C2、C3、B2以及B3发送给第二电子设备。第二电子设备聚合接口2的引脚A11、A10、D2、D3、C2、C3、B2以及B3接收到后,通过接口IC2将第一数据信号(HDMI协议的数据信号或者DP协议的数据信号)发送给控制器2。进而控制器2针对第一数据信号(HDMI协议的数据信号或者DP协议的数据信号)执行进一步的处理。
另一种示例中,当第一电子设备连接电源时,第二电子设备未连接电源时,第一电子设备可以通过聚合接口1供电引脚C4、C5、D4、D5、B4、B9、A4、A9,并经由第一类型的传输线缆,以及聚合接口2的供电引脚C4、C5、D4、D5、B4、B9、A4、A9实现为第二电子设备供电。当第二电子设备连接电源时,第一电子设备未连接电源时,第二电子设备可以通过聚合接口2的供电引脚C4、C5、D4、D5、B4、B9、A4、A9,并经由第一类型的传输线缆,以及聚合接口1的供电引脚C4、C5、D4、D5、B4、B9、A4、A9实现为第一电子设备供电。
又一种示例中,第一电子设备需要与第二电子设备之间发送或者接收大带宽的数据信号或者USB协议的数据信号时,可以通过引脚B11、B10、A2和A3来实现数据信号的发送或者接收。比如第二电子设备安装有摄像头,第二电子设备获取到摄像头采集的视频数据后,通过聚合接口2的负责数据信号发送的一对差分传输线端子,即A2和A3,发送给第一电子设备。第一电子设备通过聚合接口1的负责数据信号接收的一对差分传输线端子,即B10和B11,接收视频数据。此外,第一电子设备与第二电子设备之间还可以通过引脚B6、B7或者A6、A7实现带宽较小的数据信号的发送,比如传输文件数据。
场景二
第一电子设备采用聚合接口,第二电子设备采用HDMI,第三电子设备采用USB Type-C接口。第一电子设备、第二电子设备以及第三电子设备之间通过第二类型的传输线缆连接。以图15所示的传输线缆为例。第一电子设备采用的聚合接口可以是如图15所示的第一座子。
以第一电子设备为源端设备、第二电子设备为接收端设备为例。源端是指高清视频数据的发送源,接收端是指高清视频数据的接收端。比如第一电子设备可以是机顶盒、分体DOCK、或者PC等。第二电子设备可以是电视机(TV)、显示器或者智慧屏等。第三电子设备可以是便携式终端设备。
第一电子设备可以通过聚合接口向第二电子设备发送高清视频数据。另外第一电子设备与第三电子设备之间还可以传输USB协议的数据信号。另外,第一电子设备还可以为第三电子设备进行供电。
比如,参见图19所示,第一电子设备包括聚合接口和处理装置。示例性地,处理装置中可以包括接口IC以及控制器。在该场景下,第一电子设备可以通过聚合接口、传输线缆以及HDMI向第二电子设备发送第一数据信号。第一数据信号包括HDMI协议的数据信号。控制器通过接口IC检测该检测端子(D6)的电压,根据D6的电压检测到第一电子设备与第二电子设备和第三电子设备采用第二类型的传输线缆相连。第一电子设备与第二电子设备之间可以通过聚合接口、传输线缆以及HDMI之间传输(发送或接收)HDMI协议的控制信号。为了便于区分,将第一电子设备向第二电子设备发送的控制信号称为第一控制信号,将第二电子设备向第一电子设备发送的控制信号称为第二控制信号。
控制器生成HDMI协议的第一控制信号后,通过接口IC将HDMI协议的第一控制信号通过聚合接口的引脚B8、A8、A6以及A7发送给第二电子设备,第二电子设备通过HDMI接收HDMI协议的第一控制信号,进而第二电子设备针对HDMI协议的第一控制信号执行进一步的处理。同样,第二电子设备生成HDMI协议的第二控制信号后,通过HDMI发送给第一电子设备,第一电子设备通过聚合接口的引脚B8、A8、A6以及A7接收到HDMI协议的第二控制信号后,通过接口IC发送给控制器,控制器针对HDMI协议的控制信号执行进一步的处理。第一控制信号和第二控制信号用于协商第二电子设备的能力信息。
控制器获取到HDMI协议的数据信号后,通过接口IC将HDMI协议的数据信号通过聚合接口的引脚A11、A10、D2、D3、C2、C3、B2以及B3发送给第二电子设备。第二电子设备通过HDMI接收HDMI协议的数据信号。进而第二电子设备针对HDMI协议的数据信号执行进一步的处理。
第一电子设备可以通过聚合接口的供电引脚B4、B9、A4、A9,并经由第二类型的传输线缆,以及USB Type-C接口实现为第三电子设备供电。供电功能的协商可以通过CC1或CC2来实现。USB Type-C接口的正插或反插功能可以通过CC1或CC2来实现。第一电子设备与第三电子设备之间可以通过聚合接口和USB Type-C接口的CC1或CC2来协商。第三电子设备的USB Type-C接口还可以支持华为私有快充协议,第一电子设备与第三电子设备之间可以通过聚合接口和USB Type-C接口的A6(D+)和A7(D–)来进行私有快充协议的协商。
第一电子设备需要与第三电子设备之间发送或者接收USB协议数据信号时,可以通过引脚B11、B10、A2和A3来实现USB协议数据信号的发送或者接收。此外,第一电子设备与第三电子设备之间还可以通过引脚B6、B7或者A6、A7实现带宽较小的数据信号的发送,比如传输文件数据。
需要说明的是,第二类型的传输线缆可以仅两端连接电子设备。比如第一电子设备与第二电子设备之间通过第二类型的传输线缆相连接。USB Type-C接口未连接第三电子设备。第一电子设备可以通过聚合接口向第二电子设备发送高清视频数据。再比如,第一电子设备与第三电子设备之间通过第二类型的传输线缆相连接,HDMI未连接第二电子设备。第一电子设备与第三电子设备之间还可以传输USB协议的数据信号。另外,第一电子设备还可以为第三电子设备进行供电。
场景三
第二电子设备采用HDMI,第一电子设备采用聚合接口,第三电子设备采用USB接口。第二电子设备、第一电子设备以及第三电子设备之间通过第二类型的传输线缆连接。以图15所示的传输线缆为例。第一电子设备采用的聚合接口可以是如图15所示的第一座子。
以第二电子设备为源端设备、第一电子设备为接收端设备为例。比如第二电子设备可以是机顶盒、分体DOCK、或者PC等。第一电子设备可以是电视机(TV)、显示器或者智慧屏等。第三电子设备可以是便携式终端设备。在该场景下,第一电子设备通过聚合接口、传输线缆以及HDMI接收来自第二电子设备的第二数据信号。第二数据信号包括HDMI协议的数据信号。
第二电子设备可以通过HDMI,经由第二类型的线缆以及聚合接口向第一电子设备发送高清视频数据(HDMI协议数据)。另外第一电子设备与第三电子设备之间还可以传输USB协议的数据信号。另外,第一电子设备还可以为第三电子设备供电。
比如,参见图20所示,第一电子设备包括聚合接口和处理装置,比如处理装置可以包括接口IC以及控制器。在该场景下,第一电子设备通过聚合接口、传输线缆以及HDMI接收来自第二电子设备的第二数据信号。第二数据信号包括HDMI协议的数据信号。控制器通过接口IC检测该检测端子(D6)的电压,根据D6的电压检测到第一电子设备与第二电子设备以及第三电子设备采用第二类型的传输线缆相连。第一电子设备与第二电子设备之间可以通过聚合接口、传输线缆以及HDMI之间传输(发送或接收)HDMI协议的控制信号。为了便于区分,将第一电子设备向第二电子设备发送的控制信号称为第一控制信号,将第二电子设备向第一电子设备发送的控制信号称为第二控制信号。
控制器生成HDMI协议的第一控制信号后,通过接口IC将HDMI协议的第一控制信号通过聚合接口的引脚B8、A8、A6以及A7发送给第二电子设备,第二电子设备通过HDMI接收HDMI协议的第一控制信号,进而第二电子设备针对HDMI协议的第一控制信号执行进一步的处理。同样,第二电子设备生成HDMI协议的第二控制信号后,通过HDMI发送给第一电子设备,第一电子设备通过聚合接口的引脚B8、A8、A6以及A7接收到HDMI协议的第二控制信号后,通过接口IC发送给控制器,控制器针对HDMI协议的第二控制信号执行进一步的处理。
第二电子设备通过HDMI以及第二类型的传输线缆将HDMI协议的数据信号发送到第一电子设备的聚合接口,第一电子设备通过聚合接口的引脚A11、A10、D2、D3、C2、C3、B2以及B3接收来自第二电子设备的HDMI协议的数据信号,通过接口IC传输至控制器,从而控制器针对HDMI协议的数据信号执行进一步的处理。
第一电子设备可以通过聚合接口的供电引脚B4、B9、A4、A9,并经由第二类型的传输线缆,以及USB Type-C接口实现为第三电子设备供电。第一电子设备需要与第三电子设备之间发送或者接收USB协议数据信号时,可以通过引脚B11、B10、A2和A3来实现数据信号的发送或者接收。此外,第一电子设备与第三电子设备之间还可以通过引脚B6、B7或者A6、A7实现带宽较小的数据信号的发送,比如传输文件数据。
场景四
第一电子设备采用聚合接口,第二电子设备采用USB Type-C接口。第一电子设备、第二电子设备之间通过第三类型的传输线缆连接。以图16所示的传输线缆为例。第一电 子设备采用的聚合接口可以是如图16所示的第一座子。比如第一电子设备可以是电视机(TV)、显示器或者智慧屏等。第二电子设备可以是便携式终端设备。第一电子设备可以通过USB Type-C接口、经由第三类型的传输线缆以及聚合接口将DP协议信号发送给第二电子设备。第一电子设备可以通过聚合接口、第三类型的传输线缆以及USB Type-C接口为第二电子设备供电。在该场景下,第一电子设备通过聚合接口、传输线缆以及USB接口接收来自第二电子设备的第二数据信号。第二数据信号包括DP协议的数据信号。
比如,参见图21所示,第一电子设备包括聚合接口和处理装置。比如处理装置可以包括接口IC以及控制器。
第一电子设备通过USB Type-C接口的引脚A11、A10、B2、B3、A2、A3、B11、B10发送DP协议的数据信号(比如高清视频数据),经由第三类型的传输线缆传输到第二电子设备。第二电子设备的聚合接口的引脚A11、A10、D2、D3、C2、C3、B2、B3接收到该DP协议的数据信号,进而通过接口IC发送到控制器,控制器对DP协议的数据信号进行进一步处理。控制器生成DP协议的控制信号后,通过接口IC将DP协议的控制信号(AUX+、AUX-)通过聚合接口的引脚B8、A8发送给第二电子设备,第二电子设备通过USB Type-C接口接收DP协议的控制信号,进而第二电子设备针对DP协议的控制信号执行进一步的处理。同样,第二电子设备生成DP协议的控制信号后,通过USB Type-C接口发送给第一电子设备,第一电子设备通过聚合接口的引脚B8、A8接收到DP协议的控制信号后,通过接口IC发送给控制器,控制器针对DP协议的控制信号执行进一步的处理。比如第二电子设备为手机,手机可以通过推屏的方式将高清视频数据通过第三类型的传输线缆发送到显示器或者电视,进而显示器或者电视机显示高清视频。第一电子设备可以通过聚合接口的供电引脚B4、B9、A4、A9,并经由第三类型的传输线缆,以及USB Type-C接口实现为第二电子设备供电。第一电子设备需要与第二电子设备之间传输USB协议数据信号时,可以通过引脚B6、B7或者A6、A7实现带宽较小的USB协议的数据信号的发送,比如传输文件数据。
需要说明的是,在图18-图21中,将USB协议的数据信号简称为USB数据,将HDMI协议的数据信号简称为HDMI数据。
本申请实施例中,涉及到的处理装置,可以包括一个或者多个芯片,或者一个或者多个逻辑单元。上述示例中,处理装置中包括控制器和接口IC为例。处理装置也可以由一个或者多个控制器来实现。应理解的是,本申请的实施例中的控制器可以是中央处理单元(central processing unit,CPU),还可以是其它通用处理器、数字信号处理器(digital signal processor,DSP)、专用集成电路(application specific integrated circuit,ASIC)、现场可编程门阵列(field programmable gate array,FPGA)或者其它可编程逻辑器件、晶体管逻辑器件,硬件部件或者其任意组合。通用处理器可以是微处理器,也可以是任何常规的控制器。
本申请实施例中,电子设备中还可以包括存储器,用于存储处理装置执行的指令或存储协议相关信息以及数据信号等。示例性地,存储器可以是随机存取存储器(random access memory,RAM)、闪存、只读存储器(Read-Only Memory,ROM)、可编程只读存储器(programmable ROM,PROM)、可擦除可编程只读存储器(erasable PROM,EPROM)、电可擦除可编程只读存储器(electrically EPROM,EEPROM)、寄存器、硬盘、移动硬盘、 CD-ROM或者本领域熟知的任何其它形式的存储介质。
本领域内的技术人员应明白,本申请的实施例可提供为方法、系统、或计算机程序产品。因此,本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然,本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的保护范围。这样,倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。
Claims (30)
- 一种传输接口,其特征在于,包括第一端口,第一扩充端口和第二扩充端口,所述第一扩充端口和所述第二扩充端口位于所述第一端口的两端,所述第一端口具备通用串行总线USB接口的功能;其中,所述第一扩充端口至少包括一对第一差分传输线端子,所述第二扩充端口至少包括一对第二差分传输线端子,所述第一差分传输线端子支持第一数据信号的双向传输,所述第一数据信号包括多媒体数据,所述第二差分传输线端子支持所述第一数据信号的双向传输。
- 如权利要求1所述的传输接口,其特征在于,所述第一扩充端口还包括第一接地端子和至少一个第一电源端子,所述第二扩充端口还包括第二接地端子和至少一个第二电源端子。
- 如权利要求2所述的传输接口,其特征在于,所述第一电源端子包括两个相邻且电连接的标准电源端子;所述第二电源端子包括两个相邻且电连接的标准电源端子。
- 如权利要求3所述的传输接口,其特征在于,所述第一电源端子占用的空间包括两个相邻的标准电源端子占用的空间以及所述两个相邻的标准电源端子之间的间隙,所述第二电源端子占用的空间包括两个相邻的标准电源端子占用的空间以及所述两个相邻的标准电源端子之间的间隙。
- 如权利要求1-4任一项所述的传输接口,其特征在于,所述第一端口为USB接口,所述第一端口支持连接适配所述USB接口的插头。
- 如权利要求1-5任一项所述的传输接口,其特征在于,所述第一端口包括第一控制信号端子和第二控制信号端子;其中,所述第一控制信号端子支持第一协议的控制信号的双向传输;所述第二控制信号端子支持所述第一协议的控制信号的双向传输。
- 如权利要求6所述的传输接口,其特征在于,所述第一控制信号端子和所述第二控制信号端子在所述第一端口中旋转对称排布。
- 如权利要求6或7所述的传输接口,其特征在于,所述第一控制信号端子还支持如下至少一项的双向传输:USB协议的控制信号、高清多媒体接口HDMI协议的控制信号或者数字式视频接口DP协议的控制信号;所述第二控制信号端子还支持如下至少一项的双向传输:USB协议的控制信号、HDMI协议的控制信号或者DP协议的控制信号。
- 如权利要求1-8任一项所述的传输接口,其特征在于,所述第一端口包括一对第三差分传输线端子和一对第四差分传输线端子;其中,所述第三差分传输线端子支持所述第一数据信号的双向传输或支持USB协议的数据信号的发送,所述第四差分传输线端子支持所述第一数据信号的双向传输或支持USB协议的数据信号的接收。
- 如权利要求1至9任一项所述的传输接口,其特征在于,所述第一扩充端口还包括:检测端子,用于检测所述传输接口所连接的传输线缆的类型。
- 如权利要求10所述的传输接口,其特征在于,所述传输线缆的类型包括以下的至 少一项:两端插头采用的接口均为所述传输接口的第一类型的传输线缆;第一端插头采用的接口为所述传输接口,第二端插头采用的接口为HDMI,第三端插头采用的接口为USB接口的第二类型的传输线缆;一端插头采用的接口为所述传输接口,另一端插头采用的接口为USB接口的第三类型的传输线缆;或者,一端插头采用的接口为所述传输接口,另一端插头采用的接口为HDMI的第四类型的传输线缆。
- 如权利要求11所述的传输接口,其特征在于:所述检测端子检测的所述传输接口连接的传输线缆的类型,用于指示所述第一控制信号端子和所述第二控制信号端子传输的控制信号的类型;所述检测端子指示的所述传输接口连接的传输线缆的类型,用于指示所述第三差分传输线端子和所述第四差分传输线端子传输的数据信号的类型;以及所述检测端子指示的所述传输接口连接的传输线缆的类型,用于指示所述第一差分传输线端子和所述第二差分传输端子传输的数据信号的类型。
- 如权利要求12所述的传输接口,其特征在于:当所述检测端子指示所述传输接口连接所述第一类型的传输线缆时,所述第一控制信号端子支持所述第一协议的控制信号的双向传输,所述第二控制信号端子支持所述第一协议的控制信号的双向传输;或者,当所述检测端子指示所述传输接口连接所述第三类型的传输线缆时,所述第一控制信号端子支持所述USB协议的控制信号或者所述DP协议的控制信号的双向传输,所述第二控制信号端子支持所述USB协议的控制信号或者所述DP协议的控制信号的双向传输,所述第一控制信号端子与所述第二控制信号端子传输的控制信号所属的协议相同;或者,当所述检测端子指示所述传输接口连接第四类型的传输线缆时,所述第一控制信号端子支持所述HDMI协议的控制信号的双向传输,所述第二控制信道端子支持所述HDMI协议的控制信号的双向传输。
- 如权利要求12所述的传输接口,其特征在于,所述第一端口还包括一对第五差分传输线端子和一对第六差分传输线端子,所述第五差分传输线端子和所述第六差分传输线端子均支持所述USB协议的数据信号的双向传输和所述HDMI协议的控制信号的双向传输,所述第五差分传输线端子的传输速率和所述第六差分传输线端子的传输速率均为第一速率,所述第三差分传输线端子的传输速率和所述第四差分传输线端子的传输速率均为第二速率,所述第一速率小于或者等于第二速率;当所述检测端子指示所述传输接口连接所述第二类型的传输线缆时,所述第一控制信号端子支持所述HDMI协议的控制信号的双向传输,所述第二控制信号端子支持所述HDMI协议的控制信号的双向传输;所述第五差分传输线端子支持所述USB协议的数据信号的双向传输,所述第六差分传输线端子支持所述HDMI协议的控制信号的双向传输;或者,所述第五差分传输线端子支持所述HDMI协议的控制信号的双向传输,所述第六差分传输线端子支持所述USB协议的数据信号的双向传输。
- 如权利要求12-14任一项所述的传输接口,其特征在于:当所述检测端子检测所述传输接口连接所述第一类型的传输线缆时,所述第三差分传 输线端子支持所述第一数据信号的双向传输,所述第四差分传输线端子支持所述第一数据信号的双向传输,并且所述第一数据信号包括第一协议的数据信号、HDMI协议的数据信号或者DP协议的数据信号中的至少一项;或者,当所述检测端子检测所述传输接口连接第三类型的传输线缆时,所述第三差分传输线端子指示所述DP协议的数据信号的双向传输或者USB协议的数据信号的发送,所述第四差分传输线端子支持所述DP协议的数据信号的双向传输或所述USB协议的数据信号的接收,并且所述第一数据信号包括DP协议的数据信号;或者,当所述检测端子检测所述传输接口连接第四类型的传输线缆,所述第三差分传输线端子支持所述HDMI协议的数据信号的双向传输,所述第四差分传输线端子支持所述HDMI协议的数据信号的双向传输,并且所述第一数据信号包括HDMI协议的数据信号。
- 如权利要求12-14任一项所述的传输接口,其特征在于:所述第一端口还包括一对第七差分传输线端子和一对第八差分传输线端子;当所述检测端子检测所述传输接口连接所述第二类型的传输线缆时,所述第三差分传输线端子和所述第四差分传输线端子支持所述HDMI协议的数据信号的双向传输,所述第七差分传输线端子支持USB协议的数据信号的发送,所述第八差分传输线端子支持所述USB协议的数据信号的接收,所述第一数据信号包括HDMI协议的数据信号。
- 如权利要求1-16任一项所述的传输接口,其特征在于,所述第一扩充端口和所述第二扩充端口旋转对称排布在所述第一端口的两侧。
- 如权利要求1-17任一项所述的传输接口,其特征在于,所述第一端口为USB类型Type C接口。
- 一种传输线缆,其特征在于,包括第一插头、第二插头以及第一传输线;所述第一插头采用的接口为传输接口,所述传输接口包括第一端口,第一扩充端口和第二扩充端口,所述第一扩充端口和所述第二扩充端口位于所述第一端口的两端,所述第一端口具备通用串行总线USB接口的功能;其中,所述第一扩充端口至少包括一对第一差分传输线端子,所述第二扩充端口至少包括一对第二差分传输线端子,所述第一差分传输线端子支持第一数据信号的双向传输,所述第一数据信号包括多媒体数据,所述第二差分传输线端子支持所述第一数据信号的双向传输;所述第二插头采用的接口为所述传输接口,或者通用串行总线USB接口,或者高清多媒体接口HDMI。
- 如权利要求19所述的传输线缆,其特征在于,所述第二插头采用的接口为USB接口时,所述传输线缆还包括第三插头和第二传输线;所述第三插头采用的接口为HDMI;所述第二传输线用于连接所述第三插头和所述第一插头。
- 一种电子设备,其特征在于,包括权利要求1-18任一项所述的传输接口。
- 一种信号传输方法,其特征在于,所述方法应用于配置有传输接口的第一电子设备中,所述第一电子设备通过所述传输接口与第二电子设备耦合;所述传输接口包括第一端口,第一扩充端口和第二扩充端口,所述第一扩充端口和所述第二扩充端口位于所述第一端口的两端,所述第一端口具备通用串行总线USB接口的功能,所述第一扩充端口至少包括一对第一差分传输线端子,所述第二扩充端口至少包括一对第二差分传输线端子;所述方法包括:获取待发送的第一数据信号,通过至少一对差分传输线端子向所述第二电子设备发送所述第一数据信号,所述至少一对差分传输线端子包括所述至少一对第一差分传输线端子和/或所述至少一对第二差分传输线端子,所述第一数据信号包括第一多媒体数据;或者,通过所述至少一对差分传输线端子接收来自所述第二电子设备的第二数据信号,所述第二数据信号包括第二多媒体数据。
- 如权利要求22所述的方法,其特征在于,所述第一扩充端口还包括接地端子和至少一个第一电源端子,所述第二扩充端口还包括接地端子和至少一个第二电源端子;所述方法还包括:当所述第一电子设备连接电源时,且所述第二电子设备未连接电源时,通过所述至少一个第一电源端子、所述至少一个第二电源端子以及所述第一端口包括的电源端子中的至少一个电源端子为所述第二电子设备供电;或者,当所述第一电子设备未连接电源时,且所述第二电子设备连接电源时,通过所述至少一个第一电源端子、所述至少一个第二电源端子以及所述第一端口包括的电源端子中的至少一个电源端子接收来自所述第二电子设备的电能。
- 如权利要求22或23所述的方法,其特征在于,所述第一电子设备的所述传输接口通过传输线缆连接至所述第二电子设备,所述第一扩充端口还包括检测端子、一对第三差分传输线端子和一对第四差分传输线端子;通过至少一对差分传输线端子向所述第二电子设备发送所述第一数据信号之前,所述方法还包括:根据所述检测端子检测的所述传输接口连接的所述传输线缆的类型,控制所述至少一对差分传输线端子传输的数据信号的类型;或者,通过至少一对差分传输线端子接收来自所述第二电子设备的所述第一数据信号之前,所述方法还包括:根据所述检测端子检测的所述传输接口连接的所述传输线缆的类型,控制所述至少一对差分传输线端子传输的数据信号的类型;其中,所述至少一对差分传输线端子具体包括所述至少一对第一差分传输线端子、所述至少一对第二差分传输线端子、所述一对第三差分传输线端子或者所述一对第四差分传输线端子中的至少一对。
- 如权利要求24所述的方法,其特征在于,所述第一端口还包括第一控制信号端子和第二控制信号端子;所述方法还包括:根据所述检测端子检测的所述传输接口连接的所述传输线缆的类型,控制所述第一控制信号端子和所述第二控制信号端子传输的控制信号的类型。
- 如权利要求25所述的方法,其特征在于,所述传输线缆的类型包括以下的至少一项:两端插头采用的接口均为所述传输接口的第一类型的传输线缆;第一端插头采用的接口为所述传输接口,第二端插头采用的接口为HDMI,第三端插头采用的接口为USB接口的第二类型的传输线缆;一端插头采用的接口为所述传输接口,另一端插头采用的接口为USB接口的第三类型 的传输线缆;或者,一端插头采用的接口为所述传输接口,另一端插头采用的接口为HDMI的第四类型的传输线缆。
- 如权利要求26所述的方法,其特征在于,根据所述检测端子检测的所述传输接口连接的所述传输线缆的类型,控制所述至少一对差分传输线端子发送的数据信号的类型,包括:当所述检测端子检测的所述传输接口连接的所述传输线缆为所述第一类型的传输线缆时,通过所述至少一对第一差分传输线端子、所述至少一对第二差分传输线端子、所述一对第三差分传输线端子以及所述一对第四差分传输线端子向所述第二电子设备发送所述第一数据信号或接收来自所述第二电子设备的所述第二数据信号,所述第一数据信号和所述第二数据信号均包括第一协议的数据信号、HDMI协议的数据信号、或者DP协议的数据信号中的一项;或者,当所述检测端子检测的所述传输接口连接的所述传输线缆为所述第三类型的传输线缆时,通过所述至少一对第一差分传输线端子和所述至少一对第二差分传输线端子向所述第二电子设备发送所述第一数据信号或接收来自所述第二电子设备的所述第二数据信号,所述第一数据信号和所述第二数据信号均为DP协议的数据信号;或者,通过所述检测端子检测的所述传输接口连接的所述传输线缆为所述第四类型的传输线缆时,通过所述至少一对第一差分传输线端子、所述至少一对第二差分传输线端子、所述一对第三差分传输线端子以及所述一对第四差分传输线端子向所述第二电子设备发送所述第一数据信号或接收来自所述第二电子设备的所述第二数据信号,所述第一数据信号和所述第二数据信号均为HDMI协议的数据信号。
- 如权利要求26或27所述的方法,其特征在于,根据所述检测端子检测的所述传输接口连接的所述传输线缆的类型,控制所述至少一对差分传输线端子传输的数据信号的类型,包括:当所述检测端子检测的所述第一电子设备的传输接口连接的所述传输线缆为所述第二类型的传输线缆时,通过所述至少一对第一差分传输线端子、所述至少一对第二差分传输线端子、所述一对第三差分传输线端子以及所述一对第四差分传输线端子向所述第二电子设备发送所述第一数据信号或接收来自所述第二电子设备的第二数据信号,所述第一数据信号和所述第二数据信号均为HDMI协议的数据信号;以及通过所述第一端口包括的一对第七差分传输线端子向所述第三电子设备发送USB协议的数据信号,或者通过所述第一端口包括的一对第八差分传输线端子接收来自所述第三电子设备的USB协议的数据信号;其中,所述第一端插头耦合至所述第一电子设备,所述第二端插头耦合至所述第二电子设备,所述第三端插头耦合至所述第三电子设备。
- 如权利要求26或27所述的方法,其特征在于,所述根据所述检测端子检测的所述传输接口连接的所述传输线缆的类型,控制所述第一控制信号端子和所述第二控制信号端子传输的控制信号的类型,包括;当所述检测端子检测的所述传输接口连接的所述传输线缆为所述第一类型的传输线缆,通过所述第一控制信号端子和所述第二控制信号端子,向所述第二电子设备发送第一协议的控制信号或者接收来自所述第二电子设备的第一协议的控制信号;或者,当所述检测端子检测的所述传输接口连接的所述传输线缆为所述第三类型的传输线缆,通过所述第一控制信号端子和所述第二控制信号端子,向所述第二电子设备发送DP协议的控制信号或者接收来自所述第二电子设备的DP协议的控制信号;或者,当所述检测端子检测的所述传输接口连接的所述传输线缆为所述第三类型的传输线缆,通过所述第一控制信号端子和所述第二控制信号端子,向所述第二电子设备发送USB协议的控制信号或者接收来自所述第二电子设备的USB协议的控制信号;或者,当所述检测端子检测的所述传输接口连接的所述传输线缆为所述第四类型的传输线缆,通过所述第一控制信号端子和所述第二控制信号端子,向所述第二电子设备发送HDMI协议的控制信号或接收来自所述第二电子设备的HDMI协议的控制信号。
- 如权利要求26或27所述的方法,其特征在于,所述第一端口还包括一对第五差分传输线端子和一对第六差分传输线端子,根据所述检测端子检测的所述传输接口所连接的所述传输线缆的类型,控制所述第一控制信号端子和所述第二控制信号端子传输的控制信号的类型,包括;当所述检测端子检测的所述传输接口连接的所述传输线缆为所述第二类型的传输线缆,其中所述第一端插头耦合至所述第一电子设备,所述第二端插头耦合至所述第二电子设备,所述第三端插头耦合至所述第三电子设备;通过所述第一控制信号端子、所述第二控制信号端子、所述一对第五差分传输线端子,向所述第二电子设备发送HDMI协议的控制信号或者接收来自所述第二电子设备的HDMI协议的控制信号;或者,通过所述第一控制信号端子、所述第二控制信号端子、所述一对第六差分传输线端子,向所述第二电子设备发送HDMI协议的控制信号或者接收来自所述第二电子设备的HDMI协议的控制信号。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2020/093617 WO2021243488A1 (zh) | 2020-05-30 | 2020-05-30 | 一种传输接口、传输线缆、电子设备及信号传输方法 |
CN202080101451.8A CN115668164A (zh) | 2020-05-30 | 2020-05-30 | 一种传输接口、传输线缆、电子设备及信号传输方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2020/093617 WO2021243488A1 (zh) | 2020-05-30 | 2020-05-30 | 一种传输接口、传输线缆、电子设备及信号传输方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021243488A1 true WO2021243488A1 (zh) | 2021-12-09 |
Family
ID=78831439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2020/093617 WO2021243488A1 (zh) | 2020-05-30 | 2020-05-30 | 一种传输接口、传输线缆、电子设备及信号传输方法 |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN115668164A (zh) |
WO (1) | WO2021243488A1 (zh) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20120040354A (ko) * | 2010-10-19 | 2012-04-27 | 엘지전자 주식회사 | 컴퓨터 시스템 및 그 제어방법 |
CN103902494A (zh) * | 2012-12-28 | 2014-07-02 | 宏碁股份有限公司 | 接口扩充装置 |
CN103916701A (zh) * | 2012-12-28 | 2014-07-09 | 亚旭电脑股份有限公司 | 多级模块扩充系统及多级模块通讯方法 |
CN203720712U (zh) * | 2014-01-08 | 2014-07-16 | 特通科技有限公司 | 具有无线传输的视频装置 |
CN204087200U (zh) * | 2014-07-15 | 2015-01-07 | 特通科技有限公司 | 无线传输及视频整合装置 |
CN107333082A (zh) * | 2017-08-22 | 2017-11-07 | 深圳广世创科技有限公司 | 一种基于USB Type C接口的无线协作系统及其实现方法 |
-
2020
- 2020-05-30 WO PCT/CN2020/093617 patent/WO2021243488A1/zh active Application Filing
- 2020-05-30 CN CN202080101451.8A patent/CN115668164A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20120040354A (ko) * | 2010-10-19 | 2012-04-27 | 엘지전자 주식회사 | 컴퓨터 시스템 및 그 제어방법 |
CN103902494A (zh) * | 2012-12-28 | 2014-07-02 | 宏碁股份有限公司 | 接口扩充装置 |
CN103916701A (zh) * | 2012-12-28 | 2014-07-09 | 亚旭电脑股份有限公司 | 多级模块扩充系统及多级模块通讯方法 |
CN203720712U (zh) * | 2014-01-08 | 2014-07-16 | 特通科技有限公司 | 具有无线传输的视频装置 |
CN204087200U (zh) * | 2014-07-15 | 2015-01-07 | 特通科技有限公司 | 无线传输及视频整合装置 |
CN107333082A (zh) * | 2017-08-22 | 2017-11-07 | 深圳广世创科技有限公司 | 一种基于USB Type C接口的无线协作系统及其实现方法 |
Also Published As
Publication number | Publication date |
---|---|
CN115668164A (zh) | 2023-01-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US11675406B2 (en) | Packet-based digital display interface | |
CN210129927U (zh) | 数据传输装置 | |
US8799537B1 (en) | Transfer of uncompressed multimedia contents and data communications | |
US10031873B2 (en) | Systems for enhancing boardroom tables to include USB type-C power and connectivity functionality | |
US9274994B2 (en) | Method and system for using a standard connector to deliver combined display, data and power signals | |
US10986318B2 (en) | Electronic apparatus | |
US8151018B2 (en) | Dual-mode data transfer of uncompressed multimedia contents or data communications | |
EP2351141B1 (en) | Transmission of alternative content over standard device connectors | |
US20130217274A1 (en) | Connector for achieving complete interoperability between different types of data and multimedia interfaces | |
US20140129738A1 (en) | Flexible Implementation of Serial Bus Support Over Display Interface | |
TW201721450A (zh) | 通用序列匯流排轉換電路與相關方法 | |
US9197340B2 (en) | Connector and interface circuit for simultaneous content streaming and user data from handheld devices | |
US8909815B2 (en) | Devices and methods for multiple data streams over USB 2.0 | |
US9148001B1 (en) | Intelligent cable mechanism | |
CN105491421A (zh) | 一种基于Type-C接口的无电源线电视 | |
WO2021243488A1 (zh) | 一种传输接口、传输线缆、电子设备及信号传输方法 | |
CN218825507U (zh) | 双接口装置和投影设备 | |
TW201405316A (zh) | 顯示埠資料傳輸系統及其來源裝置、接收裝置 | |
KR101236299B1 (ko) | Usb 허브 겸용 hdmi 어댑터 | |
CN208938098U (zh) | 一种适配器及基于pc的头戴显示系统 | |
TWM593581U (zh) | 電腦裝置 | |
US20190073000A1 (en) | Electronic device and docking station | |
CN220896745U (zh) | 一种usbc转换hdmi高清视频信号的信号转换电路 | |
TW201238266A (en) | Hybrid transmission system for transmitting signal with different directionality by optical fiber and electrical transmission line | |
CN217932555U (zh) | 一种扩展坞用电路及扩展坞 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 20939199 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 20939199 Country of ref document: EP Kind code of ref document: A1 |