WO2017128707A1 - 复用usb端口的双通道移动终端和信息处理方法 - Google Patents

复用usb端口的双通道移动终端和信息处理方法 Download PDF

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Publication number
WO2017128707A1
WO2017128707A1 PCT/CN2016/096394 CN2016096394W WO2017128707A1 WO 2017128707 A1 WO2017128707 A1 WO 2017128707A1 CN 2016096394 W CN2016096394 W CN 2016096394W WO 2017128707 A1 WO2017128707 A1 WO 2017128707A1
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WO
WIPO (PCT)
Prior art keywords
processor
usb
differential signal
mobile terminal
pin
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Application number
PCT/CN2016/096394
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English (en)
French (fr)
Inventor
李春林
赵军宏
王帅
Original Assignee
努比亚技术有限公司
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Publication of WO2017128707A1 publication Critical patent/WO2017128707A1/zh

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    • 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
    • G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
    • G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
    • 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
    • G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G06F13/4063—Device-to-bus coupling
    • G06F13/4068—Electrical coupling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0274—Details of the structure or mounting of specific components for an electrical connector module
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F2213/0042—Universal serial bus [USB]

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a dual-channel mobile terminal and an information processing method for multiplexing a Universal Serial Bus (USB) port.
  • USB Universal Serial Bus
  • the USB port of the existing mobile terminal can generally be connected to an external device through a USB port, for example, the mobile terminal is connected to a computer for data copying, or the mobile terminal is connected to the charger for charging.
  • dual-channel mobile terminals such as dual-card dual-standby mobile phones, can be used to perform service processing through two different channels, such as voice service (calling) or data service (such as short message).
  • voice service calling
  • data service such as short message
  • the dual-channel mobile terminal can be simultaneously carried out through two different Global User Identity Modules (USIM) cards.
  • USIM Global User Identity Modules
  • the Internet downloads and forms a dual-channel download data, so it is necessary to set up a corresponding communication channel to achieve dual-channel data aggregation processing, for example, USB can also be used for data transmission.
  • the present invention proposes a dual channel mobile terminal that multiplexes a USB port.
  • the embodiment of the present invention provides a dual-channel mobile terminal and an information processing method for multiplexing a USB port, and aims to solve the technical problem of how to improve the utilization of the USB port.
  • an embodiment of the present invention provides a dual-channel mobile terminal that multiplexes a USB port, including a first processor configured to perform first-channel service processing and a first radio frequency circuit, and configured to perform second-channel service processing. And a second radio frequency circuit, a power management chip configured to manage power of the mobile terminal, and a USB socket configured to connect to the external device;
  • the first processor is a main processor, and the second processor a slave processor, the first processor, the second processor, and the USB socket are respectively provided with differential signal line pins;
  • the mobile terminal further includes a USB port multiplexing device;
  • the USB port multiplexing device is configured to communicate a differential signal line pin of the first processor and a differential signal of the second processor when receiving the first connectivity instruction sent by the first processor a line pin for performing dual channel data combining processing by the first processor and the second processing;
  • the device performs data transmission processing with an external device connected to the USB socket, or the external device charges the mobile terminal through the USB socket.
  • the USB port multiplexing device includes a detection signal output module and a switch chip; the detection signal output module is respectively connected to the first processor and the second processor; a plurality of switch ends respectively connected to the differential signal line pins of the first processor, the second processor, and the USB socket;
  • the first processor is configured to output a first control to the switch chip, when the first processor is a USB master device, the second processor is a USB slave device, and before performing dual channel data merge processing And a signal to control the switch chip to connect the differential signal line pins of the first processor and the second processor.
  • the first processor is further configured to output a second control signal to the detection signal output module to control the detection signal output module to input to the second processor.
  • a detection signal is generated to trigger the second processor to generate a differential signal on the differential signal line pin of the second processor and output to the differential signal line pin of the first processor through the communication of the switch chip;
  • the first processor is further configured to: when the differential signal line pin detects the differential signal, initiate an enumeration process to the second processor for the second process
  • the device establishes a USB connection and performs dual channel data merge processing.
  • the power management chip is connected to the USB socket, and a communication channel is disposed between the power management chip and the first processor;
  • the power management chip is configured to perform a charging protocol interaction with the external device if the feedback signal sent by the external device to the USB socket is detected when the mobile terminal is inserted into the external device through the USB socket. Determining the external device and transmitting an external device access notification message to the first processor.
  • the power management chip is configured to perform dual channel data combining processing when the first processor and the second processor are configured, and the power management chip detects access on the USB socket.
  • the external device is a charging device, send a charging device access notification message to the first processor, and open a charging channel for the charging device to charge the mobile terminal;
  • the first processor is configured to continue to maintain communication with the second processor after receiving the notification message.
  • the power management chip is configured to perform dual channel data combining processing when the first processor and the second processor are configured, and the power management chip detects access on the USB socket.
  • the external device is a computer, sending a notification message of the computer access to the first processor;
  • the first processor is configured to, after receiving the notification message, control the switch chip to connect the differential signal line pin of the first processor and the USB socket; and the differential signal line pin at the self Loading a first set voltage to generate a differential signal and passing the switch chip Connected to the differential signal line pins of the USB socket.
  • the first processor is further configured to perform an enumeration process with a computer for establishing a USB connection with the computer and performing data transmission processing, wherein when the computer detects the differential signal, the The first processor initiates an enumeration process, wherein the computer is a USB host device and the first processor is a USB slave device.
  • the power management chip is configured to perform dual channel data combining processing when the first processor and the second processor are configured, and the power management chip detects access on the USB socket.
  • the external device is an OTG device, sending a notification message of the OTG device access to the first processor;
  • the first processor is configured to, after receiving the notification message, control the switch chip to connect a differential signal line pin of the first processor and the USB socket, and output a power supply voltage to the USB socket. For the OTG device to start and work.
  • the first processor is further configured to perform an enumeration process with the OTG device, to establish a USB connection with the OTG device, and perform data transmission processing, where the OTG device is in the a second set voltage is applied to the differential signal line pin of the USB socket to generate a differential signal and output to the differential signal line pin of the first processor through communication of the switch chip; and when the first process When the differential signal is detected, the enumeration process is initiated to the OTG device for establishing a USB connection with the OTG device and performing data transmission processing, wherein the first processor is a USB host device, and the OTG The device is a USB slave device.
  • the switch chip is a single-pole double-throw switch chip; the first processor includes an application processor and a first modem, and the second processor includes a second modem.
  • the first processor further includes a first control line pin, a second control line pin, and a third control line pin;
  • the second processor further includes a first power pin;
  • Description The power management chip includes a second power pin;
  • the USB socket further includes a third power pin;
  • the single-pole double-throw switch chip includes a common switch end, a first switch switch end, and a second switch switch end, and the common switch end is connected to a differential signal line pin of the first processor, the first switch The end is connected to a differential signal line pin of the second processor, and the second switch end is connected to a differential signal line pin of the USB socket;
  • the single-pole double-throw switch chip further includes an enable pin and a level configuration pin, the first control line pin is connected to the enable pin, and the second control line pin is connected to the level Configuring a pin connection, the third control line pin is connected to a signal input end of the detection signal output module, and the first power supply pin is connected to a signal output end of the detection signal output module, the second A power pin is connected to the third power pin.
  • the first processor is configured to output a signal to the enable pin of the single-pole double-throw switch chip through the first control line pin to enable the single-pole double-throw switch chip;
  • the first processor is further configured to output a signal to the level configuration pin of the single-pole double-throw switch chip through the second control line pin to control a common switch end of the single-pole double-throw switch chip Conducting with the first switching switch end or the second switching switch end;
  • the first processor is further configured to output a signal to the signal input end of the detection signal output module through the third control line pin to control the detection signal output module to turn on or off the detection signal output.
  • the mobile terminal further includes an isolation circuit
  • the power management chip is provided with a differential signal line pin; the differential signal line pin of the power management chip passes through the isolation circuit and the USB socket The differential signal line pin is connected; the isolation circuit is configured to isolate interference when the power management chip communicates with the first processor and the second processor.
  • An embodiment of the present invention further provides an information processing method, which is applied to a mobile terminal;
  • the mobile terminal includes a first processor configured to perform first channel service processing, a first radio frequency circuit, a second processor configured to perform second channel service processing, and a second radio frequency circuit configured to manage power of the mobile terminal.
  • USB port multiplexing device receives the first communication instruction sent by the first processor, connecting the differential signal line pin of the first processor and the differential signal line pin of the second processor And performing, by the first processor and the second processing, a dual channel data combining process;
  • USB port multiplexing device receives the second communication instruction sent by the first processor, connecting the differential signal line pin of the first processor and the differential signal line pin of the USB socket to And performing, by the first processor, data transmission processing with an external device connected to the USB socket, or for the external device to charge the mobile terminal through the USB socket.
  • the USB port multiplexing device includes a detection signal output module and a switch chip; the method further includes:
  • the first processor When the first processor is a USB host device, the second processor is a USB slave device, and before the dual channel data combining process is performed, the first processor outputs a first control signal to the switch chip, to Controlling the switch chip to connect the differential signal line pins of the first processor and the second processor;
  • the first processor outputs a second control signal to the detection signal output module to control the detection signal output module to output a detection signal to the second processor to trigger the second processor to be in its own differential signal line. Generating a differential signal on the pin and outputting to the differential signal line pin of the first processor through communication of the switch chip;
  • the first processor initiates an enumeration process to the second processor to establish a USB connection with the second processor and perform dual channel data merging when the differential signal line pin detects the differential signal deal with.
  • the method further includes: when the mobile terminal passes the USB When the socket is inserted into the external device, if the power management chip detects a feedback signal output by the external device to the USB socket, performing a charging protocol interaction with the external device to determine the external device, and to the first device
  • the processor sends an external device access notification message.
  • the method further includes: when the first processor and the second processor perform dual channel data combining processing, and the power management chip detects an external device connected to the USB socket When charging the device, the power management chip sends a charging device access notification message to the first processor, and opens a charging channel for the charging device to charge the mobile terminal;
  • the first processor continues to maintain communication with the second processor after receiving the notification message.
  • the method further includes: when the first processor and the second processor perform dual channel data combining processing, and the power management chip detects an external device connected to the USB socket When the computer is a computer, the power management chip sends a notification message of the computer access to the first processor;
  • the first processor controls the switch chip to connect the differential signal line pins of the first processor and the USB socket; and load the first differential signal line pin Setting a voltage to generate a differential signal and outputting to the differential signal line pin of the USB socket through the communication of the switch chip;
  • the first processor and the computer perform an enumeration process for establishing a USB connection with the computer and performing data transmission processing, wherein when the computer detects the differential signal, an enumeration process is initiated to the first processor, where
  • the computer is a USB master device, and the first processor is a USB slave device.
  • the method further includes:
  • the power management chip When the first processor and the second processor perform dual channel data combining processing, and the power management chip detects that the external device connected to the USB socket is an OTG device, The power management chip sends a notification message of the OTG device access to the first processor;
  • the first processor controls the switch chip to connect the differential signal line pins of the first processor and the USB socket, and outputs a power supply voltage to the USB socket for the OTG device. Start up and work;
  • the first processor and the OTG device perform an enumeration process for establishing a USB connection with the OTG device and performing data transmission processing, wherein the OTG device is loaded on a differential signal line pin of the USB socket a second set voltage to generate a differential signal and output to the differential signal line pin of the first processor through communication of the switch chip; and when the first processor detects the differential signal, The OTG device initiates an enumeration process for establishing a USB connection with the OTG device and performing data transmission processing, wherein the first processor is a USB host device, and the OTG device is a USB slave device.
  • the first processor and the second processor can be connected to implement dual channel data combining, and the first processor or the second processor and the USB socket can also be connected to the external
  • the device performs data transmission and causes the external device to charge the mobile terminal through the USB socket.
  • the invention can realize the merging processing of the dual channel data service in the mobile terminal, the data transmission processing of the mobile terminal and the external device, and the charging of the mobile terminal through the USB port on the mobile terminal, thereby realizing the USB port of the dual channel mobile terminal. Repeatedly to improve the utilization of the USB port.
  • FIG. 1 is a schematic structural diagram of hardware of an optional mobile terminal embodying various embodiments of the present invention
  • FIG. 2 is a schematic diagram of functional modules of an embodiment of a dual-channel mobile terminal multiplexing a USB port according to the present invention
  • FIG. 3 is a schematic diagram of functional blocks of an embodiment of the USB port multiplexing device of FIG. 2;
  • FIG. 4 is a schematic diagram of connection of major components in an embodiment of a dual-channel mobile terminal multiplexing a USB port according to the present invention
  • FIG. 5 is a schematic diagram of connection of main components and pins thereof in an embodiment of a dual-channel mobile terminal multiplexing a USB port according to the present invention
  • FIG. 6 is a schematic diagram of functional modules of another embodiment of a dual-channel mobile terminal multiplexing a USB port according to the present invention.
  • FIG. 7 is a schematic diagram of connection of major components in another embodiment of a dual-channel mobile terminal multiplexing a USB port according to the present invention.
  • the mobile terminal can be implemented in various forms.
  • the terminal described in the present invention may include, for example, a mobile phone, a smart phone, a notebook computer, a digital broadcast receiver, a PDA (Personal Digital Assistant), a PAD (Tablet), a PMP (Portable Multimedia Player), a navigation device, etc.
  • Mobile terminals and fixed terminals such as digital TVs, desktop computers, and the like.
  • the terminal is a mobile terminal.
  • those skilled in the art will appreciate that configurations in accordance with embodiments of the present invention can be applied to fixed type terminals in addition to components that are specifically for mobile purposes.
  • FIG. 1 is a schematic structural diagram of hardware of an optional mobile terminal embodying various embodiments of the present invention.
  • the mobile terminal 100 may include a user input unit 110, an output unit 120, a memory 130, a controller 140, a power supply unit 150, and the like.
  • Figure 1 shows a mobile terminal with various components, However, it should be understood that not all illustrated components are required.
  • Output unit 120 is configured to provide an output signal (eg, an audio signal, a video signal, an alarm signal, a vibration signal, etc.) in a visual, audio, and/or tactile manner.
  • an output signal eg, an audio signal, a video signal, an alarm signal, a vibration signal, etc.
  • the output unit 120 may include a display unit 121 and the like.
  • the display unit 121 can display information processed in the mobile terminal 100. For example, when the mobile terminal 100 is in a phone call mode, the display unit 121 can display a user interface (UI) or a graphical user interface (GUI) related to a call or other communication (eg, text messaging, multimedia file download, etc.). When the mobile terminal 100 is in a video call mode or an image capturing mode, the display unit 121 may display a captured image and/or a received image, a UI or GUI showing a video or image and related functions, and the like.
  • UI user interface
  • GUI graphical user interface
  • the display unit 121 can function as an input device and an output device.
  • the display unit 121 may include at least one of a liquid crystal display (LCD), a thin film transistor LCD (TFT-LCD), an organic light emitting diode (OLED) display, a flexible display, a three-dimensional (3D) display, and the like.
  • LCD liquid crystal display
  • TFT-LCD thin film transistor LCD
  • OLED organic light emitting diode
  • a flexible display a three-dimensional (3D) display, and the like.
  • 3D three-dimensional
  • Some of these displays may be configured to be transparent to allow a user to view from the outside, which may be referred to as a transparent display, and a typical transparent display may be, for example, a TOLED (Transparent Organic Light Emitting Diode) display or the like.
  • TOLED Transparent Organic Light Emitting Diode
  • the mobile terminal 100 may include two or more display units (or other display devices), for example, the mobile terminal may include an external display unit (not shown) and an internal display unit (not shown) .
  • the touch screen can be used to detect touch input pressure as well as touch input position and touch input area.
  • the memory 130 may store a software program or the like for processing and control operations performed by the controller 140, or may temporarily store data (for example, a phone book, a message, a still image, a video, etc.) that has been output or is to be output. Moreover, the memory 130 may store data regarding various manners of vibration and audio signals that are output when a touch is applied to the touch screen.
  • the memory 130 may include at least one type of storage medium including a flash memory, Hard disk, multimedia card, card type memory (eg, SD or DX memory, etc.), random access memory (RAM), static random access memory (SRAM), read only memory (ROM), electrically erasable programmable read only memory (EEPROM), Programmable Read Only Memory (PROM), magnetic memory, magnetic disk, optical disk, and the like.
  • the mobile terminal 100 can cooperate with a network storage device that performs a storage function of the memory 130 through a network connection.
  • Controller 140 typically controls the overall operation of the mobile terminal. For example, controller 140 performs the control and processing associated with voice calls, data communications, video calls, and the like. The controller 140 may perform a pattern recognition process to recognize a handwriting input or a picture drawing input performed on the touch screen as a character or an image.
  • the power supply unit 150 receives external power or internal power under the control of the controller 140 and provides appropriate power required to operate the various components and components.
  • the various embodiments described herein can be implemented in a computer readable medium using, for example, computer software, hardware, or any combination thereof.
  • the embodiments described herein may be through the use of application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays ( An FPGA, a processor, a controller, a microcontroller, a microprocessor, at least one of the electronic units designed to perform the functions described herein is implemented, in some cases such an embodiment may be at the controller 140 Implemented in the middle.
  • implementations such as procedures or functions may be implemented with separate software modules that permit the execution of at least one function or operation.
  • the software code can be implemented by a software application (or program) written in any suitable programming language, which can be stored in memory 130 and executed
  • the mobile terminal 100 further includes an application processor 200, a host modem 310 and a primary radio frequency integrated circuit 320, a slave modem 410, and a slave radio frequency integrated circuit 420.
  • the master modem 310 and the primary radio frequency integrated circuit 320 form a first channel for the dual channel mobile terminal to perform service processing, and the slave modem 410 and the slave radio frequency integrated circuit 420 form a dual channel.
  • the mobile terminal performs a second channel of the service processing, where the application processor 200 is connected to the main modem 310, so as to receive the operation instruction triggered by the user and obtain the type corresponding to the operation instruction, and then corresponding the operation instruction according to the type corresponding to the operation instruction. It is sent to the main modem 310 for processing.
  • FIG. 2 is a schematic diagram of functional modules of an embodiment of a dual-channel mobile terminal for multiplexing a USB port according to the present invention.
  • the dual-channel mobile terminal specifically includes the first processor 10 configured to perform the first channel service processing, the first radio frequency circuit 101, and the second processor 20 and the second radio frequency configured to perform the second channel service processing.
  • the dual-channel mobile terminal can simultaneously process the same or different 4G data services through the first processor 10 and the second processor 20, and when processing the 4G data service at the same time, the first processor is required. 10.
  • the processor 20 performs data transmission.
  • the mobile terminal further includes a USB port multiplexing device 50, and the first processor 10 and the second processor 20 are respectively provided with differential signal line pins (that is, D+, D-data signal lines, and through voltages).
  • the change generates a differential signal, and at the same time, the data can be transmitted in the USB port specification. Therefore, in this embodiment, the differential signal line pin and the first processor 10 are connected through the USB port multiplexing device 50.
  • the settings of the first processor 10 and the second processor 20 are not limited, and the existing dual-channel mobile terminal is generally divided into a main processor and a slave processor, and the first processing is specifically performed in this embodiment.
  • the device 10 will be described as a main processor.
  • the main processor specifically includes the above embodiment.
  • the processor 200 is applied to the master modem 310, and the slave processor specifically includes the slave modem 410 in the above embodiment.
  • first processor 10 and the second processor 20 may include an application processor, a modem, and a power management circuit, and are specifically configured according to actual needs (the power management circuit is not limited to one chip, for example, the first process)
  • the power management circuit is not limited to one chip, for example, the first process
  • a plurality of PMIC circuits can be integrated on the device 10, and the PMIC circuit can also be independently disposed on other chips of the mobile terminal.
  • the application processor 200 can receive the operation instruction triggered by the user, and acquire the type corresponding to the operation instruction, and then deliver the operation instruction to the main modem 310 according to the type corresponding to the operation instruction.
  • the operation instruction is a network operation instruction ( That is, when the data service is performed, the network operation command can be simultaneously sent to the master modem 310 and the slave modem 410, and the dual channel mobile terminal can improve the communication efficiency through the two channels provided by the two modems, especially the two modems can be in the operation command.
  • the type is a network operation command
  • both the master modem 310 and the slave modem 410 complete the transmission of data through the 4G network.
  • the slave modem 410 can still perform data services through the 4G network without being dropped to the 3G or 2G network, so that the mobile terminal can significantly improve communication. Data transfer efficiency.
  • data transmission is simultaneously processed by the master modem 310 and the slave modem 410.
  • the data flow of the data channel is:
  • Uplink data user data ⁇ application processor ⁇ master modem ⁇ main radio frequency integrated circuit operator network ⁇ internet network;
  • Downstream data internet network ⁇ carrier network ⁇ main radio frequency integrated circuit ⁇ main modem ⁇ application processor ⁇ user data;
  • the data flow of the data channel is:
  • Uplink data user data ⁇ application processor ⁇ from modem ⁇ from radio frequency integrated circuit ⁇ operator network ⁇ internet network;
  • Downstream data internet network ⁇ carrier network ⁇ from radio frequency integrated circuit ⁇ slave modem ⁇ application processor ⁇ user data.
  • the USB socket 40 in view of the fact that the mobile terminal needs to be connected to the external device through the USB socket 40, in order to improve the utilization efficiency of the USB port of the mobile terminal and improve the hardware integration in the mobile terminal, in this embodiment, through the USB The port multiplexing device 50 can further implement the first processor 10 to connect with an external device for data transmission or charging. Therefore, in the embodiment, the USB socket 40 is also provided with a differential signal line pin. Therefore, in this embodiment, the differential signal line pin and the USB of the first processor 10 are connected through the USB port multiplexing device 50. The differential signal line pins of the socket 40, in turn, enable data communication between the first processor 10 and an external device for data transmission or charging.
  • the settings of the first connectivity command and the second connectivity command are not limited, and are specifically set according to actual needs.
  • the USB port multiplexing device 50 in this embodiment is also applicable to other processor devices having a high-speed interface (such as USB), such as a dual-core computer.
  • the first processor 10 and the second processor 20 can be connected to implement dual channel data combining, and the first processor 10 and the USB socket 40 can also be connected to the external device. Data transmission is performed, and the external device is charged to the mobile terminal through the USB socket 40.
  • a dual port data service integration process, a mobile terminal and an external device data transmission process, and a mobile terminal charging can be implemented on the mobile terminal through a USB port, thereby implementing a USB port of the dual channel mobile terminal. Multiple multiplexing to improve the utilization of the USB port.
  • FIG. 3 is a schematic diagram of functional modules of an embodiment of the USB port multiplexing device of FIG. Based on the above embodiment, in this embodiment, the USB port multiplexing device 50 includes a detection signal input. Module 501 and switch chip 502 are output.
  • FIG. 4 is a connection diagram.
  • the detection signal output module 501 is respectively connected to the first processor 10 and the second processor 20; the plurality of switch ends of the switch chip 502 respectively correspond to the differential signal lines of the first processor 10, the second processor 20, and the USB socket 40. Pin connection.
  • the first processor 10 when the first processor 10 is a USB host device and the second processor 20 is a USB slave device, that is, when the first processor 10 is a USB host (USB host device), the second processor 20 is In the case of a USB device (USB slave device), when a data merge processor is required, for example, the user sends a data request to the first processor 10 through the application processor to start dual channel data merge processing.
  • USB host device USB host device
  • USB slave device USB slave device
  • the first processor 10 outputs a first control signal to the switch chip 502 to control the switch chip 502 to communicate with the differential signal line pins of the first processor 10 and the second processor 20, thereby physically turning on the first a data transmission channel of the processor 10 and the second processor 20;
  • the first processor 10 outputs a second control signal to the detection signal output module 501 to control the detection signal output module 501 to output a detection signal to the second processor 20 to trigger the second processor 20 at its own differential signal line pin. Generating a differential signal on the differential signal line pin of the first processor 10 through the communication of the switch chip 502;
  • the detection signal output module 501 can be selected as a DC-DC circuit module for generating a voltage of 5V for supplying the second processor 20 for USB plug/unplug detection.
  • the detection signal output module 501 may be disposed inside the first processor 10 or external to the first processor 20, and may be set according to actual conditions.
  • the differential signal generated by the second processor 20 on the differential signal line pin of the second processor 20 is also output to the first The differential signal line pins of the processor 10.
  • the first processor 10 can further determine the device type of the USB device to be connected by using the received differential signal, such as a low-speed transmission device, a full-speed transmission device, a high-speed transmission device, and the like.
  • the first processor 10 when detecting the differential signal output by the second processor 20, the first processor 10 can determine that there is an access USB device, thereby initiating an enumeration process to the second processor 20, and thus The processor 20 establishes a USB connection and can perform dual channel data merge processing after successfully establishing a USB connection.
  • the enumeration process in this step is the same as the prior art, and therefore will not be described in detail.
  • the first processor 10 passes the enumeration process for determining the characteristics of the second processor 20 to further determine which connection mode is used to make a USB connection with the second processor 20.
  • the power management chip 30 is connected to the USB socket 40, and the power management chip 30 and the first processor 10 are provided with a communication channel.
  • the communication channel can transmit control commands, status and other information, as shown in Figure 4.
  • the charging protocol is exchanged with the external device to determine the The external device, such as determining whether the external device is a charging device or a non-charging device, transmits an external device access notification message to the first processor 10.
  • the power management chip 30 detects that the external device connected to the USB socket 40 is a charging device, the power management chip 30 The first processor 10 sends a charging device access notification message, and opens a charging channel for the charging device to charge the mobile terminal, wherein the first processor 10 continues to maintain the second processor 20 after receiving the notification message. Communication between.
  • a dual-channel mobile terminal multiplexing a USB port is implemented
  • the process of establishing a USB connection between the first processor 10 and an external device is as follows:
  • the power management chip 30 When the first processor 10 and the second processor 20 perform the dual channel data combining process and the power management chip 30 detects that the external device connected to the USB socket 40 is a computer, the power management chip 30 is directed to the first processor. 10 sending a notification message of the computer access, the form of the notification message is not limited;
  • the first processor 10 controls the switch chip 502 to connect the differential signal line pins of the first processor 10 and the USB socket 40; and load the first setting on the own differential signal line pin. a voltage to generate a differential signal and output to the differential signal line pin of the USB socket 40 through the communication of the switch chip 502;
  • the first processor 10 and the computer perform an enumeration process for establishing a USB connection with the computer and performing data transmission processing.
  • the computer functions as a USB host device
  • the first processor 10 functions as a USB slave device. Therefore, the enumeration process is initiated by the computer, that is, when the computer detects the differential signal, the enumeration process is initiated to the first processor 10.
  • the first processor 10 and the second processor 20 perform dual-channel data combining processing
  • the first processor 10 and the first processor 10 perform dual-channel data combining processing
  • the process of establishing a USB connection with an external device is as follows:
  • the power management chip 30 proceeds to the first process.
  • the device 10 sends a notification message of access by the OTG device;
  • the first processor 10 controls the switch chip 502 to connect the differential signal line pins of the first processor 10 and the USB socket 40, and outputs a power supply voltage to the USB socket for the OTG device to start and work. ;
  • the first processor 10 and the OTG device perform an enumeration process for establishing a USB connection with the OTG device and performing data transmission processing, wherein the difference of the OTG device in the USB socket 40 Loading a second set voltage on the signal line pin to generate a differential signal and outputting to the differential signal line pin of the first processor 10 through the communication of the switch chip 502; and when the first processor 10 detects the differential signal, An enumeration process is initiated to the OTG device for establishing a USB connection with the OTG device and performing data transmission processing, wherein the first processor 10 is a USB host device and the OTG device is a USB slave device.
  • the switch chip 502 is a single-pole double-throw switch chip; the first processor 10 is a main processor, that is, the first processor 10
  • the application processor 200 is included with a first modem (i.e., master modem 310) and the second processor 20 includes a second modem (i.e., slave modem 410).
  • the first processor further includes a first control line pin (control line 1), a second control line pin (control line 2), and a third control line pin (control line 3);
  • the second processor further includes a first power pin (VBUS pin), the power management chip (PMIC) includes a second power pin (VBUS pin), and the USB socket (USB socket X1) further includes Third power supply pin (VBUS pin).
  • the single-pole double-throw switch chip (S1) includes a common switch terminal (A1, B1), a first switch switch terminal (A2, B2), a second switch switch terminal (A3, B3), and a common switch terminal (A1, B1) and a
  • the differential signal line pins (D+, D-) of one processor (processor 1#) are connected, and the differential signal line pins of the first switching switch end (A2, B2) and the second processor (processor 2#) are connected.
  • (D+, D-) connection, the second switch end (A3, B3) is connected to the differential signal line pins (D+, D-) of the USB socket (USB socket X1);
  • the single-pole double-throw switch chip (S1) also includes an enable pin (EN pin), a level configuration pin (DIR pin), a first control line pin (control line 1) and an enable pin (EN lead).
  • the second control line pin (control line 2) is connected to the level configuration pin (DIR pin), and the third control line pin (control line 3) is connected to the signal input end of the detection signal output module.
  • First power pin (VBUS pin of processor 2#) is connected to the signal output terminal of the detection signal output module, and the second power supply pin (VBUS pin of PMIC) is connected to the third power supply pin (VBUS pin of USB socket X1).
  • control process of the first processor for USB port multiplexing is as follows:
  • the first processor outputs a signal to the enable pin (EN pin) of the single-pole double-throw switch chip (S1) through the first control line pin (control line 1) to enable single-pole Double-throw switch chip (S1), such as processor 1# output control line 1 is low level to enable single-pole double-throw switch chip S1;
  • the first processor outputs a signal to the level configuration pin (DIR pin) of the single-pole double-throw switch chip (S1) through the second control line pin (control line 2) to control the single-pole
  • the common switch terminals (A1, B1) of the double-throw switch chip (S1) are turned on with the first switch terminal (A2, B2) or the second switch terminal (A3, B3), for example, the processor 1# output control line 2 is high level, and then the level of the DIR pin (such as a high level) is configured, so that the common switch terminals (A1, B1) and the first switch end (A2, B2) are turned on; otherwise, the processor 1 # Output control line 2 is low level, and then the level of the DIR pin (such as low level) is configured, so that the common switch terminals (A1, B1) and the second switch switch terminals (A3, B3) are turned on.
  • the first processor 10 further includes:
  • the first processor (processor 1#) outputs a signal to the signal input terminal of the detection signal output module through the third control line pin (control line 3) to control the detection signal output module to turn on or off the detection signal output.
  • the USB-based related protocol specifies that the USB slave device needs to output a differential signal to the USB host device, that is, Self-contained voltage), therefore, this In the embodiment, the differential signal is triggered by the detection signal output module to notify the first processor (the processor 1#) that the input of the USB slave device exists.
  • the switch single-pole double-throw switch chip S1 when performing the layout of the components and devices of the dual-channel mobile terminal, the switch single-pole double-throw switch chip S1 needs to be as close as possible to the processor #2, thereby minimizing the influence of data path multiplexing on signal integrity. .
  • the processor #1 is a USB host
  • the processor #2 is a USB device.
  • the processor #1 output control line 1 is a low level enable switch chip S1, and the output control line 2 is at a high level, so that the A1 pin of the switch S1 is connected to the A2 pin, and the B1 pin is connected to the B2 pin;
  • the processor #1 output control line 3 is a high level enable detection signal output module, and outputs a 5V level to the VBUS pin of the processor #2;
  • processor #1 After the VBUS pin of processor #2 is powered up, the level of D+/D- changes. After processor #1 detects this change, it considers that there is a USB device inserted, and then initiates the enumeration process, processor #1. #2 Establish a USB connection.
  • processor #1 is communicating with processor #2, at this time, the A1 pin of the switch chip S1 is connected with the A2 pin, and the B1 pin is connected with the B2 pin;
  • the external device When the mobile terminal is inserted into the external device, the external device outputs a 5V power supply to the VBUS of the USB socket X1. After the PMIC detects the voltage on the VBUS, it first performs the interaction of the charging protocol to judge the type of the external device. If it is judged that the inserted external device is:
  • the PMIC informs the processor #1 through the communication channel, and after receiving the notification, the processor #1 loads the 3.3V voltage on the USB data line D+ (or D-), and the output control line 3 is low. , the output of the detection signal output module is turned off; the processor #1 processor output control line 1 is a low level enable switch chip S1, and the output control line 2 is at a low level, so that the A1 pin of the switch S1 is connected to the A3 pin.
  • the B1 pin is connected to the B3 pin; at this time, after the computer detects that the level of the D+/D-pin changes, the USB device is considered to be inserted, and then the enumeration process is initiated, and the computer establishes a USB connection with the processor #1.
  • the processor #1 is not in communication with the processor #2.
  • the A1 pin of the switch chip S1 is connected to the A3 pin
  • the B1 pin is connected to the B3 pin.
  • it is equivalent to the existing single-channel mobile terminal, so it is handled in the same way as the existing single-channel mobile terminal, and therefore will not be described in detail.
  • the OTG device pulls the USB_ID pin of the PMIC low, and according to the state of the processor #1, it can be divided into the following two cases:
  • processor #1 is communicating with processor #2, at this time, the A1 pin of the switch chip S1 is connected with the A2 pin, and the B1 pin is connected with the B2 pin;
  • the processor #1 is required to disconnect from the processor #2 and then connect to the external OTG device.
  • the specific processes include:
  • the PMIC informs the processor #1 through the communication channel, and after the processor #1 receives the notification, the output control line 3 is low, and the output of the detection signal output module is turned off; the processor #1 processor outputs the control line 1 to the low level. Enable the switch chip S1, the output control line 2 is low level, so that the A1 pin of the switch S1 is connected with the A3 pin, and the B1 pin is connected with the B3 pin; then the OTG device adds the 3.3V level to the data line D+ (or D- On the processor #1 detects that the level of the D+/D- pin changes, it is considered that a USB device is inserted, and then the enumeration process is initiated, and the OTG device establishes a USB connection with the processor #1.
  • processor #1 does not communicate with processor #2, at this time, the A1 pin of the switch chip S1 is connected with the A3 pin, and the B1 pin is connected with the B3 pin; in this case, it is equivalent to the existing single-channel mobile terminal, and therefore A single-channel mobile terminal is handled in the same way, so it will not be described too much.
  • FIG. 6 is a schematic diagram of functional modules of another embodiment of a dual-channel mobile terminal for multiplexing a USB port according to the present invention.
  • the mobile terminal further includes an isolation circuit 60.
  • the power management chip 30 is provided with a differential signal line pin, and the differential signal line pin of the power management core 30 passes through the isolation circuit 60 and the USB socket 40.
  • the differential signal line is pin-connected, and the isolating circuit 60 is configured to isolate the interference when the power management chip 30 communicates with the first processor 10 and the second processor 20, as shown in FIG.
  • the isolation circuit 60 can be an active circuit or a passive circuit, or an active and passive hybrid circuit.
  • the mobile terminal further provides an information processing method, which is applied to a mobile terminal, where the mobile terminal includes a first processor configured to perform first channel service processing. a radio frequency circuit, a second processor and a second radio frequency circuit configured to perform the second channel service processing, a power management chip configured to manage the power of the mobile terminal, a USB socket configured to connect the external device, and a USB port multiplexing device
  • the method includes:
  • Step 801 When the USB port multiplexing device receives the first connectivity instruction sent by the first processor, connect the differential signal line pin of the first processor and the differential signal of the second processor a line pin for performing dual channel data combining processing by the first processor and the second processing;
  • Step 802 When the USB port multiplexing device receives the second connectivity instruction sent by the first processor, connect the differential signal line pin of the first processor and the differential signal line of the USB socket. a foot for the first processor to perform data transmission processing with an external device connected to the USB socket, or for the external device to pass the USB socket to the mobile terminal Charge it.
  • the USB port multiplexing device includes a detection signal output module and a switch chip; the method further includes:
  • the first processor When the first processor is a USB host device, the second processor is a USB slave device, and before the dual channel data combining process is performed, the first processor outputs a first control signal to the switch chip, to Controlling the switch chip to connect the differential signal line pins of the first processor and the second processor;
  • the first processor outputs a second control signal to the detection signal output module to control the detection signal output module to output a detection signal to the second processor to trigger the second processor to be in its own differential signal line. Generating a differential signal on the pin and outputting to the differential signal line pin of the first processor through communication of the switch chip;
  • the first processor initiates an enumeration process to the second processor to establish a USB connection with the second processor and perform dual channel data merging when the differential signal line pin detects the differential signal deal with.
  • the method further includes: when the mobile terminal is inserted into the external device through the USB socket, if the power management chip detects a feedback signal output by the external device to the USB socket, Then, the external device performs a charging protocol interaction to determine the external device, and sends an external device access notification message to the first processor.
  • the method further includes: when the first processor and the second processor perform dual channel data combining processing, and the power management chip detects an external device connected to the USB socket When charging the device, the power management chip sends a charging device access notification message to the first processor, and opens a charging channel for the charging device to charge the mobile terminal;
  • the first processor continues to maintain communication with the second processor after receiving the notification message.
  • the method further includes: when the first processor and the second processor perform dual channel data combining processing, and the power management chip detects an external device connected to the USB socket When the computer is a computer, the power management chip sends a notification message of the computer access to the first processor;
  • the first processor controls the switch chip to connect the differential signal line pins of the first processor and the USB socket; and load the first differential signal line pin Setting a voltage to generate a differential signal and outputting to the differential signal line pin of the USB socket through the communication of the switch chip;
  • the first processor and the computer perform an enumeration process for establishing a USB connection with the computer and performing data transmission processing, wherein when the computer detects the differential signal, an enumeration process is initiated to the first processor, where
  • the computer is a USB master device, and the first processor is a USB slave device.
  • the method further includes:
  • the power management chip When the first processor and the second processor perform dual channel data merging processing and the power management chip detects that the external device connected to the USB socket is an OTG device, the power management chip is The first processor sends a notification message for accessing the OTG device;
  • the first processor controls the switch chip to connect the differential signal line pins of the first processor and the USB socket, and outputs a power supply voltage to the USB socket for the OTG device. Start up and work;
  • the first processor and the OTG device perform an enumeration process for establishing a USB connection with the OTG device and performing data transmission processing, wherein the OTG device is loaded on a differential signal line pin of the USB socket a second set voltage to generate a differential signal and output to the differential signal line pin of the first processor through communication of the switch chip; and when the first processor detects the differential signal, The OTG device initiates an enumeration process for establishing a USB connection with the OTG device and performing data transmission processing, wherein the first processing
  • the device is a USB host device, and the OTG device is a USB slave device.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.
  • the units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; You can choose some of them according to your actual needs. Or all of the units to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit;
  • the unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing storage device includes the following steps: the foregoing storage medium includes: a mobile storage device, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.
  • ROM read-only memory
  • RAM random access memory
  • magnetic disk or an optical disk.
  • optical disk A medium that can store program code.
  • the above-described integrated unit of the present invention may be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a standalone product.
  • the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a mobile storage device, a ROM, a RAM, a magnetic disk, or an optical disk.
  • the embodiment of the present invention can connect the first processor and the second processing through the USB port multiplexing device.
  • the device implements dual channel data combining, and can also communicate with the first processor or the second processor and the USB socket for data transmission with an external device, and enable the external device to charge the mobile terminal through the USB socket.
  • the invention can realize the merging processing of the dual channel data service in the mobile terminal, the data transmission processing of the mobile terminal and the external device, and the charging of the mobile terminal through the USB port on the mobile terminal, thereby realizing the USB port of the dual channel mobile terminal. Repeatedly to improve the utilization of the USB port.

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Abstract

一种复用USB端口的双通道移动终端和信息处理方法，包括第一处理器(10)、第二处理器(20)、第一射频电路(101)、第二射频电路(201)、USB插座(40)以及USB端口复用装置(50)；该USB端口复用装置配置(50)为连通第一处理器(10)与第二处理器(20)以实现双通道数据合并；以及配置为连通第一处理器(10)与USB插座(40)以与外部设备进行数据传输，以及配置为供外部设备通过USB插座(40)对移动终端进行充电。通过本方法可在移动终端上通过一个USB端口即可实现移动终端内部双通道数据业务的合并处理、移动终端与外部设备的数据传输处理以及移动终端充电，从而实现对双通道移动终端USB端口的多重复用，提高USB端口的利用率。

Description

复用USB端口的双通道移动终端和信息处理方法 技术领域
本发明涉及通信技术领域，尤其涉及复用通用串行总线(USB，Universal Serial Bus)端口的双通道移动终端和信息处理方法。
背景技术
现有移动终端的USB端口一般都可通过USB端口实现与外部设备的连接，比如移动终端与计算机连接进行数据拷贝，或者移动终端与充电器连接进行充电。此外，随着移动终端技术的发展而出现了双通道移动终端，比如双卡双待手机，能够通过两个不同的通道进行业务处理，比如进行语音业务(接打电话)或者数据业务(例如短信、彩信业务)，而对于移动终端来说，随着未来技术的发展必然涉及两个通道数据的合并处理，比如，双通道移动终端可以通过两张不同的全球用户身份模块(USIM)卡同时进行上网下载并形成双通道的下载数据，因而需要通过设置相应通信通道实现双通道的数据聚合处理，比如也可以采用USB进行数据传输。
因此，为提升USB端口的利用率，本发明提出一种复用USB端口的双通道移动终端。
上述内容仅用于辅助理解本发明的技术方案，并不代表承认上述内容是现有技术。
发明内容
为了解决上述技术问题，本发明实施例提出一种复用USB端口的双通道移动终端和信息处理方法，旨在解决如何提升USB端口利用率的技术问题。
为实现上述目的，本发明实施例提供一种复用USB端口的双通道移动终端，包括配置为进行第一通道业务处理的第一处理器与第一射频电路、配置为进行第二通道业务处理的第二处理器与第二射频电路、配置为管理所述移动终端电源的电源管理芯片以及配置为连接外部设备的USB插座；所述第一处理器为主处理器，所述第二处理器为从处理器，所述第一处理器、所述第二处理器以及所述USB插座上分别设置有差分信号线引脚；所述移动终端还包括USB端口复用装置；
所述USB端口复用装置，配置为当接收到所述第一处理器发送的第一连通指令时，连通所述第一处理器的差分信号线引脚与所述第二处理器的差分信号线引脚以供所述第一处理器与所述第二处理进行双通道数据合并处理；
以及当接收到所述第一处理器发送的第二连通指令时，连通所述第一处理器的差分信号线引脚与所述USB插座的差分信号线引脚，以供所述第一处理器与所述USB插座上连接的外部设备进行数据传输处理，或者以供外部设备通过所述USB插座对所述移动终端进行充电。
作为一种实施方式，所述USB端口复用装置包括检测信号输出模块和开关芯片；所述检测信号输出模块分别与所述第一处理器、所述第二处理器连接；所述开关芯片的多个开关端分别对应与所述第一处理器、所述第二处理器以及所述USB插座的差分信号线引脚连接；
当所述第一处理器为USB主设备、所述第二处理器为USB从设备且在进行双通道数据合并处理前，所述第一处理器，配置为向所述开关芯片输出第一控制信号，以控制所述开关芯片连通所述第一处理器与所述第二处理器的差分信号线引脚。
作为一种实施方式，所述第一处理器，还配置为向所述检测信号输出模块输出第二控制信号以控制所述检测信号输出模块向所述第二处理器输 出检测信号，以触发所述第二处理器在自身差分信号线引脚上产生差分信号并通过所述开关芯片的连通输出至所述第一处理器的差分信号线引脚；
作为一种实施方式，所述第一处理器，还配置为在自身差分信号线引脚检测到所述差分信号时，向所述第二处理器发起枚举过程，以供与所述第二处理器建立USB连接并进行双通道数据合并处理。
作为一种实施方式，所述电源管理芯片与所述USB插座连接，所述电源管理芯片与所述第一处理器之间设有通信通道；
所述电源管理芯片，配置为当所述移动终端通过所述USB插座插入到外部设备上时，若检测到外部设备输出到所述USB插座上的反馈信号，则与该外部设备进行充电协议交互以确定该外部设备，并向所述第一处理器发送外部设备接入通知消息。
作为一种实施方式，所述电源管理芯片，配置为当所述第一处理器、所述第二处理器进行双通道数据合并处理且所述电源管理芯片检测到所述USB插座上接入的外部设备为充电设备时，向所述第一处理器发送充电设备接入通知消息，并打开充电通道以供所述充电设备对所述移动终端进行充电；
所述第一处理器，配置为在接收到所述通知消息后，继续维持与所述第二处理器之间的通信。
作为一种实施方式，所述电源管理芯片，配置为当所述第一处理器、所述第二处理器进行双通道数据合并处理且所述电源管理芯片检测到所述USB插座上接入的外部设备为计算机时，向所述第一处理器发送计算机接入的通知消息；
所述第一处理器，配置为在接收到所述通知消息后，控制所述开关芯片连通所述第一处理器与所述USB插座的差分信号线引脚；以及在自身差分信号线引脚上加载第一设定电压，以产生差分信号并通过所述开关芯片 的连通输出至所述USB插座的差分信号线引脚。
作为一种实施方式，所述第一处理器，还配置为与计算机进行枚举过程，以供与计算机建立USB连接并进行数据传输处理，其中，当计算机检测到所述差分信号时，向所述第一处理器发起枚举过程，其中，计算机为USB主设备，所述第一处理器为USB从设备。
作为一种实施方式，所述电源管理芯片，配置为当所述第一处理器、所述第二处理器进行双通道数据合并处理且所述电源管理芯片检测到所述USB插座上接入的外部设备为OTG设备时，向所述第一处理器发送OTG设备接入的通知消息；
所述第一处理器，配置为在接收到所述通知消息后，控制所述开关芯片连通所述第一处理器与所述USB插座的差分信号线引脚，并向USB插座输出供电电压以供OTG设备启动并工作。
作为一种实施方式，所述第一处理器，还配置为与所述OTG设备进行枚举过程，以供与所述OTG设备建立USB连接并进行数据传输处理，其中，所述OTG设备在所述USB插座的差分信号线引脚上加载第二设定电压，以产生差分信号并通过所述开关芯片的连通输出至所述第一处理器的差分信号线引脚；以及当所述第一处理器检测到所述差分信号时，向所述OTG设备发起枚举过程，以供与所述OTG设备建立USB连接并进行数据传输处理，其中，所述第一处理器为USB主设备，所述OTG设备为USB从设备。
作为一种实施方式，所述开关芯片为单刀双掷开关芯片；所述第一处理器包括应用处理器与第一调制解调器，所述第二处理器包括第二调制解调器。
作为一种实施方式，所述第一处理器还包括第一控制线引脚、第二控制线引脚与第三控制线引脚；所述第二处理器还包括第一电源引脚；所述 电源管理芯片包括第二电源引脚；所述USB插座还包括第三电源引脚；
所述单刀双掷开关芯片包括公共开关端、第一切换开关端、第二切换开关端，所述公共开关端与所述第一处理器的差分信号线引脚连接，所述第一切换开关端与所述第二处理器的差分信号线引脚连接，所述第二切换开关端与所述USB插座的差分信号线引脚连接；
所述单刀双掷开关芯片还包括使能引脚、电平配置引脚，所述第一控制线引脚与所述使能引脚连接，所述第二控制线引脚与所述电平配置引脚连接，所述第三控制线引脚与所述检测信号输出模块的信号输入端连接，所述第一电源引脚与所述检测信号输出模块的信号输出端连接，所述第二电源引脚与所述第三电源引脚连接。
作为一种实施方式，所述第一处理器，配置为通过所述第一控制线引脚向所述单刀双掷开关芯片的所述使能引脚输出信号以使能所述单刀双掷开关芯片；
所述第一处理器，还配置为通过所述第二控制线引脚向所述单刀双掷开关芯片的所述电平配置引脚输出信号以控制所述单刀双掷开关芯片的公共开关端与第一切换开关端或第二切换开关端导通；
所述第一处理器，还配置为通过所述第三控制线引脚向所述检测信号输出模块的信号输入端输出信号以控制所述检测信号输出模块开启或断开检测信号输出。
作为一种实施方式，所述移动终端还包括隔离电路，所述电源管理芯片上设有差分信号线引脚；所述电源管理芯片的差分信号线引脚通过所述隔离电路与所述USB插座的差分信号线引脚连接；所述隔离电路配置为隔离所述电源管理芯片对所述第一处理器、所述第二处理器进行通信时的干扰。
本发明实施例还提供了一种信息处理方法，应用于移动终端中；所述 移动终端包括配置为进行第一通道业务处理的第一处理器与第一射频电路、配置为进行第二通道业务处理的第二处理器与第二射频电路、配置为管理所述移动终端电源的电源管理芯片、配置为连接外部设备的USB插座和USB端口复用装置；所述方法包括：
当所述USB端口复用装置接收到所述第一处理器发送的第一连通指令时，连通所述第一处理器的差分信号线引脚与所述第二处理器的差分信号线引脚以供所述第一处理器与所述第二处理进行双通道数据合并处理；
当所述USB端口复用装置接收到所述第一处理器发送的第二连通指令时，连通所述第一处理器的差分信号线引脚与所述USB插座的差分信号线引脚，以供所述第一处理器与所述USB插座上连接的外部设备进行数据传输处理，或者以供外部设备通过所述USB插座对所述移动终端进行充电。
作为一种实施方式，所述USB端口复用装置包括检测信号输出模块和开关芯片；所述方法还包括：
当所述第一处理器为USB主设备、所述第二处理器为USB从设备且在进行双通道数据合并处理前，所述第一处理器向所述开关芯片输出第一控制信号，以控制所述开关芯片连通所述第一处理器与所述第二处理器的差分信号线引脚；
所述第一处理器向所述检测信号输出模块输出第二控制信号以控制所述检测信号输出模块向所述第二处理器输出检测信号，以触发所述第二处理器在自身差分信号线引脚上产生差分信号并通过所述开关芯片的连通输出至所述第一处理器的差分信号线引脚；
所述第一处理器在自身差分信号线引脚检测到所述差分信号时，向所述第二处理器发起枚举过程，以供与所述第二处理器建立USB连接并进行双通道数据合并处理。
作为一种实施方式，所述方法还包括：当所述移动终端通过所述USB 插座插入到外部设备上时，若所述电源管理芯片检测到外部设备输出到所述USB插座上的反馈信号，则与该外部设备进行充电协议交互以确定该外部设备，并向所述第一处理器发送外部设备接入通知消息。
作为一种实施方式，所述方法还包括：当所述第一处理器、所述第二处理器进行双通道数据合并处理且所述电源管理芯片检测到所述USB插座上接入的外部设备为充电设备时，所述电源管理芯片向所述第一处理器发送充电设备接入通知消息，并打开充电通道以供所述充电设备对所述移动终端进行充电；
所述第一处理器在接收到所述通知消息后，继续维持与所述第二处理器之间的通信。
作为一种实施方式，所述方法还包括：当所述第一处理器、所述第二处理器进行双通道数据合并处理且所述电源管理芯片检测到所述USB插座上接入的外部设备为计算机时，所述电源管理芯片向所述第一处理器发送计算机接入的通知消息；
所述第一处理器在接收到所述通知消息后，控制所述开关芯片连通所述第一处理器与所述USB插座的差分信号线引脚；以及在自身差分信号线引脚上加载第一设定电压，以产生差分信号并通过所述开关芯片的连通输出至所述USB插座的差分信号线引脚；
所述第一处理器与计算机进行枚举过程，以供与计算机建立USB连接并进行数据传输处理，其中，当计算机检测到所述差分信号时，向所述第一处理器发起枚举过程，其中，计算机为USB主设备，所述第一处理器为USB从设备。
作为一种实施方式，所述方法还包括：
当所述第一处理器、所述第二处理器进行双通道数据合并处理且所述电源管理芯片检测到所述USB插座上接入的外部设备为OTG设备时，所 述电源管理芯片向所述第一处理器发送OTG设备接入的通知消息；
所述第一处理器在接收到所述通知消息后，控制所述开关芯片连通所述第一处理器与所述USB插座的差分信号线引脚，并向USB插座输出供电电压以供OTG设备启动并工作；
所述第一处理器与所述OTG设备进行枚举过程，以供与所述OTG设备建立USB连接并进行数据传输处理，其中，所述OTG设备在所述USB插座的差分信号线引脚上加载第二设定电压，以产生差分信号并通过所述开关芯片的连通输出至所述第一处理器的差分信号线引脚；以及当所述第一处理器检测到所述差分信号时，向所述OTG设备发起枚举过程，以供与所述OTG设备建立USB连接并进行数据传输处理，其中，所述第一处理器为USB主设备，所述OTG设备为USB从设备。
本发明实施例中，通过USB端口复用装置，可连通第一处理器与第二处理器以实现双通道数据合并，以及还可连通第一处理器或第二处理器与USB插座以与外部设备进行数据传输，以及使外部设备通过USB插座对移动终端进行充电。本发明可在移动终端上通过一个USB端口即可实现移动终端内部双通道数据业务的合并处理、移动终端与外部设备的数据传输处理以及移动终端充电，从而实现对双通道移动终端USB端口的多重复用，提高USB端口的利用率。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1为实现本发明各个实施例一个可选的移动终端的硬件结构示意；
图2为本发明复用USB端口的双通道移动终端一实施例的功能模块示意图；
图3为图2中USB端口复用装置一实施例的功能模块示意图；
图4为本发明复用USB端口的双通道移动终端一实施例中各主要部件的连接示意图；
图5为本发明复用USB端口的双通道移动终端一实施例中各主要部件及其引脚的连接示意图；
图6为本发明复用USB端口的双通道移动终端另一实施例的功能模块示意图；
图7为本发明复用USB端口的双通道移动终端另一实施例中各主要部件的连接示意图。
具体实施方式
下面将结合附图及实施例对本发明的技术方案进行更详细的说明。
现在将参考附图描述实现本发明各个实施例的移动终端。在后续的描述中，使用用于表示元件的诸如“模块”、“部件”或“单元”的后缀仅为了有利于本发明的说明，其本身并没有特定的意义。因此，"模块"与"部件"可以混合地使用。
移动终端可以以各种形式来实施。例如，本发明中描述的终端可以包括诸如移动电话、智能电话、笔记本电脑、数字广播接收器、PDA(个人数字助理)、PAD(平板电脑)、PMP(便携式多媒体播放器)、导航装置等等的移动终端以及诸如数字TV、台式计算机等等的固定终端。下面，假设终端是移动终端。然而，本领域技术人员将理解的是，除了特别用于移动目的的元件之外，根据本发明的实施方式的构造也能够应用于固定类型的终端。
图1为实现本发明各个实施例一个可选的移动终端的硬件结构示意图。
移动终端100可以包括用户输入单元110、输出单元120、存储器130、控制器140和电源单元150等等。图1示出了具有各种组件的移动终端， 但是应理解的是，并不要求实施所有示出的组件。输出单元120被构造为以视觉、音频和/或触觉方式提供输出信号(例如，音频信号、视频信号、警报信号、振动信号等等)。
输出单元120可以包括显示单元121等等。显示单元121可以显示在移动终端100中处理的信息。例如，当移动终端100处于电话通话模式时，显示单元121可以显示与通话或其它通信(例如，文本消息收发、多媒体文件下载等等)相关的用户界面(UI)或图形用户界面(GUI)。当移动终端100处于视频通话模式或者图像捕获模式时，显示单元121可以显示捕获的图像和/或接收的图像、示出视频或图像以及相关功能的UI或GUI等等。
同时，当显示单元121和触摸板以层的形式彼此叠加以形成触摸屏时，显示单元121可以用作输入装置和输出装置。显示单元121可以包括液晶显示器(LCD)、薄膜晶体管LCD(TFT-LCD)、有机发光二极管(OLED)显示器、柔性显示器、三维(3D)显示器等等中的至少一种。这些显示器中的一些可以被构造为透明状以允许用户从外部观看，这可以称为透明显示器，典型的透明显示器可以例如为TOLED(透明有机发光二极管)显示器等等。根据特定想要的实施方式，移动终端100可以包括两个或更多显示单元(或其它显示装置)，例如，移动终端可以包括外部显示单元(未示出)和内部显示单元(未示出)。触摸屏可用于检测触摸输入压力以及触摸输入位置和触摸输入面积。
存储器130可以存储由控制器140执行的处理和控制操作的软件程序等等，或者可以暂时地存储己经输出或将要输出的数据(例如，电话簿、消息、静态图像、视频等等)。而且，存储器130可以存储关于当触摸施加到触摸屏时输出的各种方式的振动和音频信号的数据。
存储器130可以包括至少一种类型的存储介质，存储介质包括闪存、 硬盘、多媒体卡、卡型存储器(例如，SD或DX存储器等等)、随机访问存储器(RAM)、静态随机访问存储器(SRAM)、只读存储器(ROM)、电可擦除可编程只读存储器(EEPROM)、可编程只读存储器(PROM)、磁性存储器、磁盘、光盘等等。而且，移动终端100可以与通过网络连接执行存储器130的存储功能的网络存储装置协作。
控制器140通常控制移动终端的总体操作。例如，控制器140执行与语音通话、数据通信、视频通话等等相关的控制和处理。控制器140可以执行模式识别处理，以将在触摸屏上执行的手写输入或者图片绘制输入识别为字符或图像。
电源单元150在控制器140的控制下接收外部电力或内部电力并且提供操作各元件和组件所需的适当的电力。
这里描述的各种实施方式可以以使用例如计算机软件、硬件或其任何组合的计算机可读介质来实施。对于硬件实施，这里描述的实施方式可以通过使用特定用途集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理装置(DSPD)、可编程逻辑装置(PLD)、现场可编程门阵列(FPGA)、处理器、控制器、微控制器、微处理器、被设计为执行这里描述的功能的电子单元中的至少一种来实施，在一些情况下，这样的实施方式可以在控制器140中实施。对于软件实施，诸如过程或功能的实施方式可以与允许执行至少一种功能或操作的单独的软件模块来实施。软件代码可以由以任何适当的编程语言编写的软件应用程序(或程序)来实施，软件代码可以存储在存储器130中并且由控制器140执行。
此外，移动终端100进一步包括应用处理器200、主调制解调器310与主射频集成电路320、从调制解调器410与从射频集成电路420。其中，主调制解调器310与主射频集成电路320构成双通道移动终端进行业务处理的第一通道，而从调制解调器410与从射频集成电路420则构成了双通道 移动终端进行业务处理的第二通道，其中，应用处理器200与主调制解调器310连接，以便接收用户触发的操作指令并获取操作指令对应的类型，然后根据操作指令对应的类型，将操作指令对应下发至主调制解调器310进行处理。
基于上述移动终端硬件结构以及通信系统，提出本发明方法各个实施例。
参照图2，图2为本发明复用USB端口的双通道移动终端一实施例的功能模块示意图。本实施例中，双通道移动终端具体包括配置为进行第一通道业务处理的第一处理器10与第一射频电路101、配置为进行第二通道业务处理的第二处理器20与第二射频电路201、配置为管理移动终端电源的电源管理芯片30以及配置为连接外部设备的USB插座40。
本发明实施例中，双通道移动终端通过第一处理器10、第二处理器20可以同时处理相同的或不同的4G数据业务，而在同时处理4G数据业务时，则需要进行第一处理器10、第二处理器20各自下载的数据的合并处理，进一步地，若第一处理器10、第二处理器20之间需要进行数据的合并处理，则需要连通第一处理器10、第二处理器20以便进行数据传输。本实施例中，移动终端还包括USB端口复用装置50，同时第一处理器10、第二处理器20上分别设有差分信号线引脚(也即D+、D-数据信号线，通过电压的变化产生差分信号，同时在USB端口规范中还可以进行数据的传输)，从而，本实施例中，具体通过USB端口复用装置50通过连通第一处理器10的差分信号线引脚与第二处理器20的差分信号线引脚，进而实现第一处理器10、第二处理器20之间的数据连通以便进行数据的合并处理。
本实施例中，对于第一处理器10与第二处理器20的设置不限，现有双通道移动终端中一般都划分为主处理器与从处理器，本实施例中具体以第一处理器10为主处理器进行说明。其中，主处理器具体包括上述实施例 中应用处理器200与主调制解调器310，而从处理器具体包括上述实施例中的从调制解调器410。需要进一步说明的是，第一处理器10、第二处理器20都可以包括应用处理器、调制解调器以及电源管理电路，具体根据实际需要进行设置(电源管理电路不限于一颗芯片，例如第一处理器10上可以集成有多个PMIC电路，同时PMIC电路也可独立设置于移动终端的其它芯片上)。
应用处理器200可接收用户触发的操作指令，并获取操作指令对应的类型，然后根据操作指令对应的类型，将操作指令对应下发至主调制解调器310，此时，当操作指令为网络操作指令(也即进行数据业务)时，可同时将网络操作指令发送至主调制解调器310与从调制解调器410，双通道移动终端可以通过两个调制解调器提供的双通道提高通信效率，特别是两个调制解调器可以在操作指令的类型为网络操作指令时，主调制解调器310与从调制解调器410均通过4G网络完成数据的传输。相对于现有技术而言，当主调制解调器310通过4G网络进行数据业务时，从调制解调器410仍然可以通过4G网络进行数据业务，而无需降至3G或2G网络，这样，可以显著提高移动终端进行通信时的数据传输效率。
例如以网络业务如上网为例，数据传输由主调制解调器310和从调制解调器410同时处理。
通过主调制解调器310所对应的第一SIM卡的LTE进行上网时，数据通道的数据流向为：
上行数据：用户数据→应用处理器→主调制解调器→主射频集成电路运营商网络→internet网络；
下行数据：internet网络→运营商网络→主射频集成电路→主调制解调器→应用处理器→用户数据；
同时，通过从调制解调器410所对应的第二SIM卡的LTE进行上网时， 数据通道的数据流向为：
上行数据：用户数据→应用处理器→从调制解调器→从射频集成电路→运营商网络→internet网络；
下行数据：internet网络→运营商网络→从射频集成电路→从调制解调器→应用处理器→用户数据。
此外，本实施例中，鉴于一般移动终端都需要通过USB插座40与外部设备连接，因此，为提升移动终端USB端口的利用效率以及提升移动终端内的硬件集成度，本实施例中，通过USB端口复用装置50还可以进一步实现第一处理器10与外部设备进行连接，以进行数据传输或充电。因此，本实施例中，USB插座40上也设置有差分信号线引脚，从而，本实施例中，具体通过USB端口复用装置50通过连通第一处理器10的差分信号线引脚与USB插座40的差分信号线引脚，进而实现第一处理器10与外部设备之间的数据连通以便进行数据传输或者充电。
本实施例中，对于第一连通指令与第二连通指令的设置不限，具体根据实际需要进行设置。需要进一步说明的是，本实施例中的USB端口复用装置50也同样适用于其他具有高速接口(如USB)的处理器设备，比如双核计算机等。本实施例中，通过USB端口复用装置50，可连通第一处理器10与第二处理器20以实现双通道数据合并，以及还可连通第一处理器10与USB插座40以与外部设备进行数据传输，以及使外部设备通过USB插座40对移动终端进行充电。本实施例可在移动终端上通过一个USB端口即可实现移动终端内部双通道数据业务的合并处理、移动终端与外部设备的数据传输处理以及移动终端充电，从而实现对双通道移动终端USB端口的多重复用，提高USB端口的利用率。
参照图3，图3为图2中USB端口复用装置一实施例的功能模块示意图。基于上述实施例，本实施例中，USB端口复用装置50包括检测信号输 出模块501和开关芯片502。
如图4所示的连接示意图。检测信号输出模块501分别与第一处理器10、第二处理器20连接；开关芯片502的多个开关端分别对应与第一处理器10、第二处理器20以及USB插座40的差分信号线引脚连接。
本实施例中，当第一处理器10为USB主设备、第二处理器20为USB从设备时，也即当第一处理器10为USB host(USB主设备)、第二处理器20为USB device(USB从设备)时，在需要进行数据合并处理器时，比如用户通过应用处理器向第一处理器10发送数据请求，以开始进行双通道数据合并处理，具体实现过程如下：
(1)第一处理器10向开关芯片502输出第一控制信号，以控制开关芯片502连通第一处理器10与第二处理器20的差分信号线引脚，从而在物理上导通第一处理器10与第二处理器20的数据传输通道；
(2)第一处理器10向检测信号输出模块501输出第二控制信号以控制检测信号输出模块501向第二处理器20输出检测信号，以触发第二处理器20在自身差分信号线引脚上产生差分信号并通过开关芯片502的连通输出至第一处理器10的差分信号线引脚；
本步骤中，检测信号输出模块501可选为DC-DC电路模块，此电路模块用于产生5V的电压，以用于供给第二处理器20进行USB的插/拔检测。本实施例中，检测信号输出模块501既可以设置于第一处理器10的内部，也可以设置于第一处理器20的外部，具体根据实际情况进行设置。本步骤中，由于第一处理器10与第二处理器20的物理数据传输通道已导通，因此，第二处理器20在自身差分信号线引脚上产生的差分信号也将输出到第一处理器10的差分信号线引脚上。此外，第一处理器10通过接收到的差分信号还可以进一步判断当前待连接的USB device的设备类型，比如为低速传输设备、全速传输设备、高速传输设备等。
(3)当第一处理器10在自身差分信号线引脚检测到差分信号时，向第二处理器20发起枚举过程，以供与第二处理器20建立USB连接并进行双通道数据合并处理。
本步骤中，第一处理器10在检测到第二处理器20所输出的差分信号时，即可确定存在接入的USB device，从而向第二处理器20发起枚举过程，从而与第二处理器20建立USB连接，并在成功建立USB连接后即可进行双通道数据合并处理。本步骤中的枚举过程与现有技术相同，因此不做过多赘述。第一处理器10通过枚举过程以用于确定第二处理器20的特征，从而进一步决定采用何种连接方式与第二处理器20进行USB连接。
进一步可选的，在本发明复用USB端口的双通道移动终端一实施例中，电源管理芯片30与USB插座40连接，电源管理芯片30与第一处理器10之间设有通信通道，该通信通道可以传输控制命令、状态等信息，如图4所示。
本实施例中，当移动终端通过USB插座40插入到外部设备上时，若电源管理芯片30检测到外部设备输出到USB插座40上的反馈信号，则与该外部设备进行充电协议交互以确定该外部设备，比如确定该外部设备是否为充电设备或者为非充电设备，并向第一处理器10发送外部设备接入通知消息。
作为一种实施方式，当第一处理器10、第二处理器20进行双通道数据合并处理且电源管理芯片30检测到USB插座40上接入的外部设备为充电设备时，电源管理芯片30向第一处理器10发送充电设备接入通知消息，并打开充电通道以供充电设备对移动终端进行充电，其中，第一处理器10在接收到通知消息后，继续维持与第二处理器20之间的通信。
作为一种实施方式，在本发明复用USB端口的双通道移动终端一实施 例中，在第一处理器10、第二处理器20进行双通道数据合并处理时，第一处理器10与外部设备建立USB连接的过程如下：
(1)当第一处理器10、第二处理器20进行双通道数据合并处理且电源管理芯片30检测到USB插座40上接入的外部设备为计算机时，电源管理芯片30向第一处理器10发送计算机接入的通知消息，该通知消息的形式不限；
(2)第一处理器10在接收到通知消息后，控制开关芯片502连通第一处理器10与USB插座40的差分信号线引脚；以及在自身差分信号线引脚上加载第一设定电压，以产生差分信号并通过开关芯片502的连通输出至USB插座40的差分信号线引脚；
(3)第一处理器10与计算机进行枚举过程，以供与计算机建立USB连接并进行数据传输处理。本实施例中，计算机作为USB主设备，第一处理器10作为USB从设备，因此由计算机发起枚举过程，也即当计算机检测到差分信号时，向第一处理器10发起枚举过程。
作为一种实施方式，在本发明复用USB端口的双通道移动终端另一实施例中，在第一处理器10、第二处理器20进行双通道数据合并处理时，第一处理器10与外部设备建立USB连接的过程如下：
(1)当第一处理器10、第二处理器20进行双通道数据合并处理且电源管理芯片30检测到USB插座40上接入的外部设备为OTG设备时，电源管理芯片30向第一处理器10发送OTG设备接入的通知消息；
(2)第一处理器10在接收到通知消息后，控制开关芯片502连通第一处理器10与USB插座40的差分信号线引脚，并向USB插座输出供电电压以供OTG设备启动并工作；
(3)第一处理器10与OTG设备进行枚举过程，以供与OTG设备建立USB连接并进行数据传输处理，其中，OTG设备在USB插座40的差分 信号线引脚上加载第二设定电压，以产生差分信号并通过开关芯片502的连通输出至第一处理器10的差分信号线引脚；以及当第一处理器10检测到差分信号时，向OTG设备发起枚举过程，以供与OTG设备建立USB连接并进行数据传输处理，其中，第一处理器10为USB主设备，OTG设备为USB从设备。
作为一种实施方式，在本发明复用USB端口的双通道移动终端一实施例中，开关芯片502为单刀双掷开关芯片；第一处理器10为主处理器，也即第一处理器10包括应用处理器200与第一调制解调器(也即主调制解调器310)，第二处理器20包括第二调制解调器(也即从调制解调器410)。
作为一种实施方式，如图5所示的本发明复用USB端口的双通道移动终端一实施例的连接示意图。其中，第一处理器(处理器1#)还包括第一控制线引脚(控制线1)、第二控制线引脚(控制线2)与第三控制线引脚(控制线3)；第二处理器(处理器2#)还包括第一电源引脚(VBUS引脚)，电源管理芯片(PMIC)包括第二电源引脚(VBUS引脚)，USB插座(USB插座X1)还包括第三电源引脚(VBUS引脚)。
单刀双掷开关芯片(S1)包括公共开关端(A1、B1)、第一切换开关端(A2、B2)、第二切换开关端(A3、B3)，公共开关端(A1、B1)与第一处理器(处理器1#)的差分信号线引脚(D+、D-)连接，第一切换开关端(A2、B2)与第二处理器(处理器2#)的差分信号线引脚(D+、D-)连接，第二切换开关端(A3、B3)与USB插座(USB插座X1)的差分信号线引脚(D+、D-)连接；
单刀双掷开关芯片(S1)还包括使能引脚(EN引脚)、电平配置引脚(DIR引脚)，第一控制线引脚(控制线1)与使能引脚(EN引脚)连接，第二控制线引脚(控制线2)与电平配置引脚(DIR引脚)连接，第三控制线引脚(控制线3)与检测信号输出模块的信号输入端连接，第一电源引脚 (处理器2#的VBUS引脚)与检测信号输出模块的信号输出端连接，第二电源引脚(PMIC的VBUS引脚)与第三电源引脚(USB插座X1的VBUS引脚)连接。
作为一种实施方式，如图5所示，第一处理器进行USB端口复用的控制过程如下：
(1)第一处理器(处理器1#)通过第一控制线引脚(控制线1)向单刀双掷开关芯片(S1)的使能引脚(EN引脚)输出信号以使能单刀双掷开关芯片(S1)，比如处理器1#输出控制线1为低电平以使能单刀双掷开关芯片S1；
(2)第一处理器(处理器1#)通过第二控制线引脚(控制线2)向单刀双掷开关芯片(S1)的电平配置引脚(DIR引脚)输出信号以控制单刀双掷开关芯片(S1)的公共开关端(A1、B1)与第一切换开关端(A2、B2)或第二切换开关端(A3、B3)导通，例如，处理器1#输出控制线2为高电平，进而配置DIR引脚的电平(比如高电平)，进而使公共开关端(A1、B1)与第一切换开关端(A2、B2)导通；反之，处理器1#输出控制线2为低电平，进而配置DIR引脚的电平(比如低电平)，进而使公共开关端(A1、B1)与第二切换开关端(A3、B3)导通。
此外，当第一处理器10与第二处理器20之间进行数据合并处理而建立USB连接时，也即处理器1#为USB主设备，处理器2#为USB从设备进行USB连接时，第一处理器进一步还包括：
(3)第一处理器(处理器1#)通过第三控制线引脚(控制线3)向检测信号输出模块的信号输入端输出信号以控制检测信号输出模块开启或断开检测信号输出。由于第一处理器10与第二处理器20为同一设备的不同部件之间所建立的USB连接，因此，基于USB的相关协议规定(USB从设备需要向USB主设备输出差分信号，也即需要自带电压)，因此，本实 施例中通过检测信号输出模块触发产生差分信号，从而告知第一处理器(处理器1#)存在USB从设备的输入。
本实施例中，在进行双通道移动终端各部件、器件的布局时，需要将开关单刀双掷开关芯片S1尽量靠近处理器#2，从而尽量减小由于数据通路复用对信号完整性的影响。
下面具体基于上述图5的连接方式，对USB端口的复用的几种情形分别进行详细说明，本示例中具体以处理器#1为USB host，处理器#2为USB device进行说明。
1、处理器#1与处理器#2之间的通信
处理器#1输出控制线1为低电平使能开关芯片S1，并输出控制线2为高电平使开关S1的A1脚与A2脚连通，B1脚与B2脚连通；
处理器#1输出控制线3为高电平使能检测信号输出模块，使之输出5V电平提供给处理器#2的VBUS引脚；
处理器#2的VBUS引脚上电后导致D+/D-的电平发生变化，处理器#1检测到这种变化后则认为有USB device插入，进而发起枚举过程，处理器#1、#2建立USB连接。
2、外部USB host(例如计算机)/充电器插入
此时根据处理器#1的状态，分为以下两种情形：
2.1处理器#1正与处理器#2通信中，此时开关芯片S1的A1脚与A2脚连通，B1脚与B2脚连通；
当移动终端插入到外部设备中时，外部设备输出5V电源加载到USB插座X1的VBUS上。PMIC检测到VBUS上的电压后，先进行充电协议的交互，以对外部设备的类型进行判断，如果判断插入的外部设备是：
(I)充电器，则PMIC通过通信通道告知处理器#1，处理器#1收到通知后继续维持与处理器#2的通信不变，PMIC随后打开充电通道，让充电 器对电池充电；
(II)计算机，则PMIC通过通信通道告知处理器#1，处理器#1收到通知后将3.3V电压加载在USB的数据线D+(或D-)上，输出控制线3为低电平，关断检测信号输出模块的输出；处理器#1处理器输出控制线1为低电平使能开关芯片S1，输出控制线2为低电平，使开关S1的A1脚与A3脚连通，B1脚与B3脚连通；此时，计算机检测到D+/D-脚的电平发生变化后则认为有USB device插入，进而发起枚举过程，计算机与处理器#1建立USB连接。
2.2处理器#1未与处理器#2通信，此时开关芯片S1的A1脚与A3脚连通，B1脚与B3脚连通。此种情形下相当于现有的单通道移动终端，因此与现有单通道移动终端的处理方式相同，因此不再做过多赘述。
3、外部OTG设备插入
当外部OTG设备插入到本发明双通道移动终端的USB插座上时，OTG设备将PMIC的USB_ID引脚拉低，此时根据处理器#1的状态可分为以下两种情形：
3.1处理器#1正与处理器#2通信中，此时开关芯片S1的A1脚与A2脚连通，B1脚与B2脚连通；
根据优先通信外部OTG的原则，需要处理器#1先断开与处理器#2的连接，再连接到外部OTG设备上，具体流程包括：
PMIC通过通信通道告知处理器#1，处理器#1收到通知后输出控制线3为低电平，关断检测信号输出模块的输出；处理器#1处理器输出控制线1为低电平使能开关芯片S1，输出控制线2为低电平，使开关S1的A1脚与A3脚连通，B1脚与B3脚连通；随后OTG设备将3.3V电平加在数据线D+(或D-)上，处理器#1检测到D+/D-脚的电平发生变化则认为有USB device插入，进而发起枚举过程，OTG设备与处理器#1建立USB连接。
3.2处理器#1未与处理器#2通信，此时开关芯片S1的A1脚与A3脚连通，B1脚与B3脚连通；此种情形下相当于现有的单通道移动终端，因此与现有单通道移动终端的处理方式相同，因此不再做过多赘述。
参照图6，图6为本发明复用USB端口的双通道移动终端另一实施例的功能模块示意图。基于上述实施例，本实施例中，移动终端还包括隔离电路60，电源管理芯片30上设有差分信号线引脚，电源管理芯30的差分信号线引脚通过隔离电路60与USB插座40的差分信号线引脚连接，隔离电60配置为隔离电源管理芯片30对第一处理器10、第二处理器20进行通信时的干扰，如图7所示的连接示意图。
本实施例中，隔离电路60可以是有源电路或无源电路，或者有源与无源的混合电路。
基于本发明实施例所述的移动终端，本发明实施例还提供了一种信息处理方法，应用于移动终端中；所述移动终端包括配置为进行第一通道业务处理的第一处理器与第一射频电路、配置为进行第二通道业务处理的第二处理器与第二射频电路、配置为管理所述移动终端电源的电源管理芯片、配置为连接外部设备的USB插座和USB端口复用装置；所述方法包括：
步骤801：当所述USB端口复用装置接收到所述第一处理器发送的第一连通指令时，连通所述第一处理器的差分信号线引脚与所述第二处理器的差分信号线引脚以供所述第一处理器与所述第二处理进行双通道数据合并处理；
步骤802：当所述USB端口复用装置接收到所述第一处理器发送的第二连通指令时，连通所述第一处理器的差分信号线引脚与所述USB插座的差分信号线引脚，以供所述第一处理器与所述USB插座上连接的外部设备进行数据传输处理，或者以供外部设备通过所述USB插座对所述移动终端 进行充电。
作为一种实施方式，所述USB端口复用装置包括检测信号输出模块和开关芯片；所述方法还包括：
当所述第一处理器为USB主设备、所述第二处理器为USB从设备且在进行双通道数据合并处理前，所述第一处理器向所述开关芯片输出第一控制信号，以控制所述开关芯片连通所述第一处理器与所述第二处理器的差分信号线引脚；
所述第一处理器向所述检测信号输出模块输出第二控制信号以控制所述检测信号输出模块向所述第二处理器输出检测信号，以触发所述第二处理器在自身差分信号线引脚上产生差分信号并通过所述开关芯片的连通输出至所述第一处理器的差分信号线引脚；
所述第一处理器在自身差分信号线引脚检测到所述差分信号时，向所述第二处理器发起枚举过程，以供与所述第二处理器建立USB连接并进行双通道数据合并处理。
作为一种实施方式，所述方法还包括：当所述移动终端通过所述USB插座插入到外部设备上时，若所述电源管理芯片检测到外部设备输出到所述USB插座上的反馈信号，则与该外部设备进行充电协议交互以确定该外部设备，并向所述第一处理器发送外部设备接入通知消息。
作为一种实施方式，所述方法还包括：当所述第一处理器、所述第二处理器进行双通道数据合并处理且所述电源管理芯片检测到所述USB插座上接入的外部设备为充电设备时，所述电源管理芯片向所述第一处理器发送充电设备接入通知消息，并打开充电通道以供所述充电设备对所述移动终端进行充电；
所述第一处理器在接收到所述通知消息后，继续维持与所述第二处理器之间的通信。
作为一种实施方式，所述方法还包括：当所述第一处理器、所述第二处理器进行双通道数据合并处理且所述电源管理芯片检测到所述USB插座上接入的外部设备为计算机时，所述电源管理芯片向所述第一处理器发送计算机接入的通知消息；
所述第一处理器在接收到所述通知消息后，控制所述开关芯片连通所述第一处理器与所述USB插座的差分信号线引脚；以及在自身差分信号线引脚上加载第一设定电压，以产生差分信号并通过所述开关芯片的连通输出至所述USB插座的差分信号线引脚；
所述第一处理器与计算机进行枚举过程，以供与计算机建立USB连接并进行数据传输处理，其中，当计算机检测到所述差分信号时，向所述第一处理器发起枚举过程，其中，计算机为USB主设备，所述第一处理器为USB从设备。
作为一种实施方式，所述方法还包括：
当所述第一处理器、所述第二处理器进行双通道数据合并处理且所述电源管理芯片检测到所述USB插座上接入的外部设备为OTG设备时，所述电源管理芯片向所述第一处理器发送OTG设备接入的通知消息；
所述第一处理器在接收到所述通知消息后，控制所述开关芯片连通所述第一处理器与所述USB插座的差分信号线引脚，并向USB插座输出供电电压以供OTG设备启动并工作；
所述第一处理器与所述OTG设备进行枚举过程，以供与所述OTG设备建立USB连接并进行数据传输处理，其中，所述OTG设备在所述USB插座的差分信号线引脚上加载第二设定电压，以产生差分信号并通过所述开关芯片的连通输出至所述第一处理器的差分信号线引脚；以及当所述第一处理器检测到所述差分信号时，向所述OTG设备发起枚举过程，以供与所述OTG设备建立USB连接并进行数据传输处理，其中，所述第一处理 器为USB主设备，所述OTG设备为USB从设备。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
上述本发明实施例序号仅仅为了描述，不代表实施例的优劣。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
上述本发明实施例序号仅仅为了描述，不代表实施例的优劣。
在本申请所提供的几个实施例中，应该理解到，所揭露的设备和方法，可以通过其它的方式实现。以上所描述的设备实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，如：多个单元或组件可以结合，或可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的各组成部分相互之间的耦合、或直接耦合、或通信连接可以是通过一些接口，设备或单元的间接耦合或通信连接，可以是电性的、机械的或其它形式的。
上述作为分离部件说明的单元可以是、或也可以不是物理上分开的，作为单元显示的部件可以是、或也可以不是物理单元，即可以位于一个地方，也可以分布到多个网络单元上；可以根据实际的需要选择其中的部分 或全部单元来实现本实施例方案的目的。
另外，在本发明各实施例中的各功能单元可以全部集成在一个处理单元中，也可以是各单元分别单独作为一个单元，也可以两个或两个以上单元集成在一个单元中；上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于一计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而前述的存储介质包括：移动存储设备、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
或者，本发明上述集成的单元如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机、服务器、或者网络设备等)执行本发明各个实施例所述方法的全部或部分。而前述的存储介质包括：移动存储设备、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。
工业实用性
本发明实施例通过USB端口复用装置，可连通第一处理器与第二处理 器以实现双通道数据合并，以及还可连通第一处理器或第二处理器与USB插座以与外部设备进行数据传输，以及使外部设备通过USB插座对移动终端进行充电。本发明可在移动终端上通过一个USB端口即可实现移动终端内部双通道数据业务的合并处理、移动终端与外部设备的数据传输处理以及移动终端充电，从而实现对双通道移动终端USB端口的多重复用，提高USB端口的利用率。

Claims (20)

  1. 一种复用USB端口的双通道移动终端，所述双通道移动终端包括配置为进行第一通道业务处理的第一处理器与第一射频电路、配置为进行第二通道业务处理的第二处理器与第二射频电路、配置为管理所述移动终端电源的电源管理芯片以及配置为连接外部设备的USB插座；所述第一处理器为主处理器，所述第二处理器为从处理器，所述第一处理器、所述第二处理器以及所述USB插座上分别设置有差分信号线引脚；所述移动终端还包括USB端口复用装置；
    所述USB端口复用装置，配置为当接收到所述第一处理器发送的第一连通指令时，连通所述第一处理器的差分信号线引脚与所述第二处理器的差分信号线引脚以供所述第一处理器与所述第二处理进行双通道数据合并处理；
    以及当接收到所述第一处理器发送的第二连通指令时，连通所述第一处理器的差分信号线引脚与所述USB插座的差分信号线引脚，以供所述第一处理器与所述USB插座上连接的外部设备进行数据传输处理，或者以供外部设备通过所述USB插座对所述移动终端进行充电。
  2. 如权利要求1所述的复用USB端口的双通道移动终端，其中，所述USB端口复用装置包括检测信号输出模块和开关芯片；所述检测信号输出模块分别与所述第一处理器、所述第二处理器连接；所述开关芯片的多个开关端分别对应与所述第一处理器、所述第二处理器以及所述USB插座的差分信号线引脚连接；
    当所述第一处理器为USB主设备、所述第二处理器为USB从设备且在进行双通道数据合并处理前，所述第一处理器，配置为向所述开关芯片输出第一控制信号，以控制所述开关芯片连通所述第一处理器与所述第二处理器的差分信号线引脚。
  3. 根据权利要求2所述的复用USB端口的双通道移动终端，其中，所述第一处理器，还配置为向所述检测信号输出模块输出第二控制信号以控制所述检测信号输出模块向所述第二处理器输出检测信号，以触发所述第二处理器在自身差分信号线引脚上产生差分信号并通过所述开关芯片的连通输出至所述第一处理器的差分信号线引脚。
  4. 根据权利要求3所述的复用USB端口的双通道移动终端，其中，所述第一处理器，还配置为在自身差分信号线引脚检测到所述差分信号时，向所述第二处理器发起枚举过程，以供与所述第二处理器建立USB连接并进行双通道数据合并处理。
  5. 如权利要求1所述的复用USB端口的双通道移动终端，其中，所述电源管理芯片与所述USB插座连接，所述电源管理芯片与所述第一处理器之间设有通信通道；
    所述电源管理芯片，配置为当所述移动终端通过所述USB插座插入到外部设备上时，若检测到外部设备输出到所述USB插座上的反馈信号，则与该外部设备进行充电协议交互以确定该外部设备，并向所述第一处理器发送外部设备接入通知消息。
  6. 如权利要求5所述的复用USB端口的双通道移动终端，其中，所述电源管理芯片，配置为当所述第一处理器、所述第二处理器进行双通道数据合并处理且所述电源管理芯片检测到所述USB插座上接入的外部设备为充电设备时，向所述第一处理器发送充电设备接入通知消息，并打开充电通道以供所述充电设备对所述移动终端进行充电；
    所述第一处理器，配置为在接收到所述通知消息后，继续维持与所述第二处理器之间的通信。
  7. 如权利要求5所述的复用USB端口的双通道移动终端，其中，所述电源管理芯片，配置为当所述第一处理器、所述第二处理器进行双通道 数据合并处理且所述电源管理芯片检测到所述USB插座上接入的外部设备为计算机时，向所述第一处理器发送计算机接入的通知消息；
    所述第一处理器，配置为在接收到所述通知消息后，控制所述开关芯片连通所述第一处理器与所述USB插座的差分信号线引脚；以及在自身差分信号线引脚上加载第一设定电压，以产生差分信号并通过所述开关芯片的连通输出至所述USB插座的差分信号线引脚。
  8. 如权利要求7所述的复用USB端口的双通道移动终端，其中，所述第一处理器，还配置为与计算机进行枚举过程，以供与计算机建立USB连接并进行数据传输处理，其中，当计算机检测到所述差分信号时，向所述第一处理器发起枚举过程，其中，计算机为USB主设备，所述第一处理器为USB从设备。
  9. 如权利要求5所述的复用USB端口的双通道移动终端，其中，所述电源管理芯片，配置为当所述第一处理器、所述第二处理器进行双通道数据合并处理且所述电源管理芯片检测到所述USB插座上接入的外部设备为OTG设备时，向所述第一处理器发送OTG设备接入的通知消息；
    所述第一处理器，配置为在接收到所述通知消息后，控制所述开关芯片连通所述第一处理器与所述USB插座的差分信号线引脚，并向USB插座输出供电电压以供OTG设备启动并工作。
  10. 如权利要求9所述的复用USB端口的双通道移动终端，其中，所述第一处理器，还配置为与所述OTG设备进行枚举过程，以供与所述OTG设备建立USB连接并进行数据传输处理，其中，所述OTG设备在所述USB插座的差分信号线引脚上加载第二设定电压，以产生差分信号并通过所述开关芯片的连通输出至所述第一处理器的差分信号线引脚；以及当所述第一处理器检测到所述差分信号时，向所述OTG设备发起枚举过程，以供与所述OTG设备建立USB连接并进行数据传输处理，其中，所述第一处理 器为USB主设备，所述OTG设备为USB从设备。
  11. 如权利要求2-10中任一项所述的复用USB端口的双通道移动终端，其中，所述开关芯片为单刀双掷开关芯片；所述第一处理器包括应用处理器与第一调制解调器，所述第二处理器包括第二调制解调器。
  12. 如权利要求11所述的复用USB端口的双通道移动终端，其中，所述第一处理器还包括第一控制线引脚、第二控制线引脚与第三控制线引脚；所述第二处理器还包括第一电源引脚；所述电源管理芯片包括第二电源引脚；所述USB插座还包括第三电源引脚；
    所述单刀双掷开关芯片包括公共开关端、第一切换开关端、第二切换开关端，所述公共开关端与所述第一处理器的差分信号线引脚连接，所述第一切换开关端与所述第二处理器的差分信号线引脚连接，所述第二切换开关端与所述USB插座的差分信号线引脚连接；
    所述单刀双掷开关芯片还包括使能引脚、电平配置引脚，所述第一控制线引脚与所述使能引脚连接，所述第二控制线引脚与所述电平配置引脚连接，所述第三控制线引脚与所述检测信号输出模块的信号输入端连接，所述第一电源引脚与所述检测信号输出模块的信号输出端连接，所述第二电源引脚与所述第三电源引脚连接。
  13. 如权利要求12所述的复用USB端口的双通道移动终端，其中，所述第一处理器，配置为通过所述第一控制线引脚向所述单刀双掷开关芯片的所述使能引脚输出信号以使能所述单刀双掷开关芯片；
    所述第一处理器，还配置为通过所述第二控制线引脚向所述单刀双掷开关芯片的所述电平配置引脚输出信号以控制所述单刀双掷开关芯片的公共开关端与第一切换开关端或第二切换开关端导通；
    所述第一处理器，还配置为通过所述第三控制线引脚向所述检测信号输出模块的信号输入端输出信号以控制所述检测信号输出模块开启或断开 检测信号输出。
  14. 如权利要求1-13中任一项所述的复用USB端口的双通道移动终端，其中，所述移动终端还包括隔离电路，所述电源管理芯片上设有差分信号线引脚；所述电源管理芯片的差分信号线引脚通过所述隔离电路与所述USB插座的差分信号线引脚连接；所述隔离电路配置为隔离所述电源管理芯片对所述第一处理器、所述第二处理器进行通信时的干扰。
  15. 一种信息处理方法，应用于移动终端中；所述移动终端包括配置为进行第一通道业务处理的第一处理器与第一射频电路、配置为进行第二通道业务处理的第二处理器与第二射频电路、配置为管理所述移动终端电源的电源管理芯片、配置为连接外部设备的USB插座和USB端口复用装置；所述方法包括：
    当所述USB端口复用装置接收到所述第一处理器发送的第一连通指令时，连通所述第一处理器的差分信号线引脚与所述第二处理器的差分信号线引脚以供所述第一处理器与所述第二处理进行双通道数据合并处理；
    当所述USB端口复用装置接收到所述第一处理器发送的第二连通指令时，连通所述第一处理器的差分信号线引脚与所述USB插座的差分信号线引脚，以供所述第一处理器与所述USB插座上连接的外部设备进行数据传输处理，或者以供外部设备通过所述USB插座对所述移动终端进行充电。
  16. 如权利要求15所述的信息处理方法，其中，所述USB端口复用装置包括检测信号输出模块和开关芯片；所述方法还包括：
    当所述第一处理器为USB主设备、所述第二处理器为USB从设备且在进行双通道数据合并处理前，所述第一处理器向所述开关芯片输出第一控制信号，以控制所述开关芯片连通所述第一处理器与所述第二处理器的差分信号线引脚；
    所述第一处理器向所述检测信号输出模块输出第二控制信号以控制所 述检测信号输出模块向所述第二处理器输出检测信号，以触发所述第二处理器在自身差分信号线引脚上产生差分信号并通过所述开关芯片的连通输出至所述第一处理器的差分信号线引脚；
    所述第一处理器在自身差分信号线引脚检测到所述差分信号时，向所述第二处理器发起枚举过程，以供与所述第二处理器建立USB连接并进行双通道数据合并处理。
  17. 如权利要求15所述的信息处理方法，其中，所述方法还包括：当所述移动终端通过所述USB插座插入到外部设备上时，若所述电源管理芯片检测到外部设备输出到所述USB插座上的反馈信号，则与该外部设备进行充电协议交互以确定该外部设备，并向所述第一处理器发送外部设备接入通知消息。
  18. 如权利要求17所述的信息处理方法，其中，所述方法还包括：当所述第一处理器、所述第二处理器进行双通道数据合并处理且所述电源管理芯片检测到所述USB插座上接入的外部设备为充电设备时，所述电源管理芯片向所述第一处理器发送充电设备接入通知消息，并打开充电通道以供所述充电设备对所述移动终端进行充电；
    所述第一处理器在接收到所述通知消息后，继续维持与所述第二处理器之间的通信。
  19. 如权利要求17所述的信息处理方法，其中，所述方法还包括：当所述第一处理器、所述第二处理器进行双通道数据合并处理且所述电源管理芯片检测到所述USB插座上接入的外部设备为计算机时，所述电源管理芯片向所述第一处理器发送计算机接入的通知消息；
    所述第一处理器在接收到所述通知消息后，控制所述开关芯片连通所述第一处理器与所述USB插座的差分信号线引脚；以及在自身差分信号线引脚上加载第一设定电压，以产生差分信号并通过所述开关芯片的连通输 出至所述USB插座的差分信号线引脚；
    所述第一处理器与计算机进行枚举过程，以供与计算机建立USB连接并进行数据传输处理，其中，当计算机检测到所述差分信号时，向所述第一处理器发起枚举过程，其中，计算机为USB主设备，所述第一处理器为USB从设备。
  20. 如权利要求17所述的信息处理方法，其中，所述方法还包括：
    当所述第一处理器、所述第二处理器进行双通道数据合并处理且所述电源管理芯片检测到所述USB插座上接入的外部设备为OTG设备时，所述电源管理芯片向所述第一处理器发送OTG设备接入的通知消息；
    所述第一处理器在接收到所述通知消息后，控制所述开关芯片连通所述第一处理器与所述USB插座的差分信号线引脚，并向USB插座输出供电电压以供OTG设备启动并工作；
    所述第一处理器与所述OTG设备进行枚举过程，以供与所述OTG设备建立USB连接并进行数据传输处理，其中，所述OTG设备在所述USB插座的差分信号线引脚上加载第二设定电压，以产生差分信号并通过所述开关芯片的连通输出至所述第一处理器的差分信号线引脚；以及当所述第一处理器检测到所述差分信号时，向所述OTG设备发起枚举过程，以供与所述OTG设备建立USB连接并进行数据传输处理，其中，所述第一处理器为USB主设备，所述OTG设备为USB从设备。
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