CN105630726B - The binary channels mobile terminal of multiplexing USB port - Google Patents
The binary channels mobile terminal of multiplexing USB port Download PDFInfo
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- CN105630726B CN105630726B CN201610066439.3A CN201610066439A CN105630726B CN 105630726 B CN105630726 B CN 105630726B CN 201610066439 A CN201610066439 A CN 201610066439A CN 105630726 B CN105630726 B CN 105630726B
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- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
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Abstract
The invention discloses a kind of binary channels mobile terminals of multiplexing USB port, including first processor, second processor, the first radio circuit, the second radio circuit, USB socket and USB port multiplexer；The USB port multiplexer is for being connected to first processor with second processor to realize that double-channel data merges；And for being connected to first processor and USB socket to carry out data transmission with external equipment, and for being charged by USB socket to mobile terminal for external equipment.The merging treatment of double-channel data business inside mobile terminal, the data transmission and processing of mobile terminal and external equipment and mobile terminal can be realized by a USB port on mobile terminals through the invention to charge, to realize to the multi multiplexing of binary channels mobile terminal USB port, the utilization rate of USB port is improved.
Description
Technical field
The present invention relates to field of communication technology more particularly to the binary channels mobile terminals of multiplexing USB port.
Background technique
The USB port of existing mobile terminal generally can all realize the connection with external equipment by USB port, for example move
Terminal connect progress data copy with computer or mobile terminal connect with charger and charges.In addition, with mobile whole
The development of end technology and there is binary channels mobile terminal, such as double card double standby mobile phone, can by two different channels into
Row business processing, for example voice service (making and receiving calls) or data service (namely gprs service) are carried out, and for mobile whole
For end, as the development of WeiLai Technology necessarily refers to the merging treatment of two channel datas, for example, binary channels mobile terminal can
To carry out online downloading simultaneously by two different usim cards and form twin-channel downloading data, thus need to pass through setting
Twin-channel data aggregate processing is realized in respective communication channel, for example can also be carried out data transmission using USB.
It therefore, is the utilization rate for promoting USB port, the present invention proposes a kind of binary channels mobile terminal of multiplexing USB port.
Above content is only used to facilitate the understanding of the technical scheme, and is not represented and is recognized that above content is existing skill
Art.
Summary of the invention
In order to solve the above-mentioned technical problem, the present invention proposes a kind of binary channels mobile terminal of multiplexing USB port, it is intended to solve
The technical issues of certainly how promoting USB port utilization rate.
To achieve the above object, the present invention provides a kind of binary channels mobile terminal of multiplexing USB port, including for carrying out
The first processor of first passage business processing and the first radio circuit, the second processing for carrying out second channel business processing
Power management chip of the device with the second radio circuit, for managing the mobile terminal power supply and for connecting external equipment
USB socket；The first processor is primary processor, the second processor be from processor, it is the first processor, described
Differential signal wire pin is respectively arranged on second processor and the USB socket；The mobile terminal further includes USB port
Multiplexer；
The USB port multiplexer, for connecting when receiving the first connection instruction that the first processor is sent
Lead to the differential signal wire pin of the first processor and the differential signal wire pin of the second processor for described first
Processor and the second processing carry out double-channel data merging treatment；
And when receiving the second connection instruction that the first processor is sent, it is connected to the difference of the first processor
The differential signal wire pin of sub-signal wire pin and the USB socket, for connecting on the first processor and the USB socket
The external equipment connect carries out data transmission handling, or for external equipment by the USB socket to the mobile terminal into
Row charging.
Optionally, the USB port multiplexer includes detection signal output module, switch chip；The detection signal
Output module is connect with the first processor, the second processor respectively；Distinguish at the multiple switch end of the switch chip
Correspondence is connect with the differential signal wire pin of the first processor, the second processor and the USB socket；
When the first processor is USB main equipment, the second processor is USB from equipment and is carrying out binary channels number
Before merging treatment, the first processor exports first control signal to the switch chip, to control the switch chip
It is connected to the differential signal wire pin of the first processor Yu the second processor；
The first processor exports second control signal to the detection signal output module to control the detection letter
Number output module exports detection signal to the second processor, is drawn with triggering the second processor in itself differential signal line
Differential signal is generated on foot and by the differential signal wire pin of the connection output of the switch chip to the first processor；
When the first processor is when itself differential signal wire pin detects the differential signal, at described second
It manages device and initiates enumeration process, connect for establishing USB with the second processor and carry out double-channel data merging treatment.
Optionally, the power management chip is connect with the USB socket, at the power management chip and described first
It manages and is equipped with communication channel between device；
When the mobile terminal is inserted on external equipment by the USB socket, if the power management chip is examined
The feedback signal that external equipment is output on the USB socket is measured, then carries out charge protocol with the external equipment and interacts with true
The fixed external equipment, and send external equipment to the first processor and access notification message.
Optionally, when the first processor, the second processor carry out double-channel data merging treatment and the electricity
When source control chip detects that the external equipment that accesses on the USB socket is charging equipment, the power management chip is to institute
It states first processor and sends charging equipment access notification message, and open charge tunnel so that the charging equipment is to the movement
Terminal charges, wherein the first processor continues to and the second processing after receiving the notification message
Communication between device.
Optionally, when the first processor, the second processor carry out double-channel data merging treatment and the electricity
When source control chip detects that the external equipment that accesses on the USB socket is computer, the power management chip is to described
First processor sends the notification message of computer access；
The first processor controls the switch chip connection first processing after receiving the notification message
The differential signal wire pin of device and the USB socket；And the first setting of load voltage on itself differential signal wire pin, with
Generate differential signal and by the differential signal wire pin of the connection output of the switch chip to the USB socket；
The first processor and computer carry out enumeration process, connect for establishing USB with computer and carry out data
Transmission process, wherein when COMPUTER DETECTION is to the differential signal, initiate enumeration process to the first processor, wherein
Computer is USB main equipment, and the first processor is USB from equipment.
Optionally, when the first processor, the second processor carry out double-channel data merging treatment and the electricity
When source control chip detects that the external equipment that accesses on the USB socket is OTG equipment, the power management chip is to described
First processor sends the notification message of OTG equipment access；
The first processor controls the switch chip connection first processing after receiving the notification message
The differential signal wire pin of device and the USB socket, and to USB socket output supply voltage so that OTG equipment starts and works；
The first processor and OTG equipment carry out enumeration process, connect line number of going forward side by side for establishing USB with OTG equipment
According to transmission process, wherein OTG equipment loads the second setting voltage on the differential signal wire pin of the USB socket, to generate
Differential signal simultaneously passes through the differential signal wire pin of the connection output of the switch chip to the first processor；And work as institute
When stating first processor and detecting the differential signal, enumeration process is initiated to OTG equipment, is connected for establishing USB with OTG equipment
It connects and carries out data transmission and processing, wherein the first processor is USB main equipment, and OTG equipment is USB from equipment.
Optionally, the switch chip is single-pole double-throw switch (SPDT) chip；The first processor include application processor with
First modem, the second processor include second modem.
Optionally, the first processor further includes the first control wire pin, the second control wire pin and third control line
Pin；The second processor further includes the first power pins；The power management chip includes second source pin；It is described
USB socket further includes third power pins；
The single-pole double-throw switch (SPDT) chip include common switch end, first switching switch terminals, second switching switch terminals, it is described
Common switch end is connect with the differential signal wire pin of the first processor, at the first switching switch terminals and described second
The differential signal wire pin connection of device is managed, the second switching switch terminals are connect with the differential signal wire pin of the USB socket；
The single-pole double-throw switch (SPDT) chip further includes enabled pin, level configuration pin, the first control wire pin with
The enabled pin connection, the second control wire pin are connect with the level configuration pin, and the third controls wire pin
It is connect with the signal input part of the detection signal output module, first power pins and the detection signal output module
Signal output end connection, the second source pin connect with the third power pins.
Optionally, the first processor passes through first control institute of the wire pin to the single-pole double-throw switch (SPDT) chip
Enabled pin output signal is stated to enable the single-pole double-throw switch (SPDT) chip；
The first processor passes through the second control level of the wire pin to the single-pole double-throw switch (SPDT) chip
Configuration pin output signal switches switch terminals or second with first with the common switch end for controlling the single-pole double-throw switch (SPDT) chip
Switch switch terminals conducting；
The first processor controls wire pin by the third and inputs to the signal of the detection signal output module
End output signal turns on or off detection signal output to control the detection signal output module.
Optionally, the mobile terminal further includes isolation circuit, and the power management chip draws equipped with differential signal line
Foot；The differential signal line that the differential signal wire pin of the power management chip passes through the isolation circuit and the USB socket
Pin connection；The isolation circuit is for being isolated the power management chip to the first processor, the second processor
Interference when being communicated.
In the present invention, by USB port multiplexer, first processor and second processor can be connected to realize binary channels
Data merge, and can also be connected to first processor or second processor and USB socket to carry out data transmission with external equipment,
And external equipment is made to charge by USB socket to mobile terminal.The present invention can pass through an end USB on mobile terminals
Mouth can be realized inside mobile terminal at the data transmission of the merging treatment, mobile terminal and external equipment of double-channel data business
Reason and mobile terminal charging, so that realization improves the benefit of USB port to the multi multiplexing of binary channels mobile terminal USB port
With rate.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings：
The hardware configuration signal of Fig. 1 each embodiment one optional mobile terminal to realize the present invention；
Fig. 2 is the functional block diagram of one embodiment of binary channels mobile terminal of multiplexing USB port of the present invention；
Fig. 3 is the functional block diagram of one embodiment of USB port multiplexer in Fig. 2；
Fig. 4 is the connection signal of each main component in one embodiment of binary channels mobile terminal of multiplexing USB port of the present invention
Figure；
Fig. 5 is each main component and its pin in one embodiment of binary channels mobile terminal of multiplexing USB port of the present invention
Connection schematic diagram；
Fig. 6 is the functional block diagram of another embodiment of binary channels mobile terminal of multiplexing USB port of the present invention；
Fig. 7 is that the connection of each main component in another embodiment of binary channels mobile terminal of multiplexing USB port of the present invention is shown
It is intended to.
Specific embodiment
Technical solution of the present invention is described in detail below in conjunction with accompanying drawings and embodiments.
The mobile terminal of each embodiment of the present invention is realized in description with reference to the drawings.In subsequent description, use
For indicate element such as " module ", " component " or " unit " suffix only for being conducive to explanation of the invention, itself
There is no specific meanings.Therefore, " module " can be used mixedly with " component ".
Mobile terminal can be implemented in a variety of manners.For example, terminal described in the present invention may include such as moving
Phone, smart phone, laptop, digit broadcasting receiver, PDA (personal digital assistant), PAD (tablet computer), PMP
The mobile terminal of (portable media player), navigation device etc. and such as number TV, desktop computer etc. are consolidated
Determine terminal.Hereinafter it is assumed that terminal is mobile terminal.However, it will be understood by those skilled in the art that in addition to being used in particular for moving
Except the element of purpose, the construction of embodiment according to the present invention can also apply to the terminal of fixed type.
The hardware structural diagram of Fig. 1 each embodiment one optional mobile terminal to realize the present invention.
Mobile terminal 100 may include user input unit 110, output unit 120, memory 130,140 and of controller
Power supply unit 150 etc..Fig. 1 shows the mobile terminal with various assemblies, it should be understood that being not required for implementing institute
There is the component shown.Output unit 120 is configured to provide output signal (for example, sound with vision, audio and/or tactile manner
Frequency signal, vision signal, alarm signal, vibration signal etc.).
Output unit 120 may include display unit 121 etc..Display unit 121 may be displayed in mobile terminal 100
The information of processing.For example, display unit 121 can show and converse or it when mobile terminal 100 is in telephone calling model
It communicates (for example, text messaging, multimedia file downloading etc.) relevant user interface (UI) or graphic user interface
(GUI).When mobile terminal 100 is in video calling mode or image capture mode, display unit 121 can show capture
Image and/or received image, the UI or GUI that show video or image and correlation function etc..
Meanwhile when display unit 121 and touch tablet in the form of layer it is superposed on one another to form touch screen when, display unit
121 may be used as input unit and output device.Display unit 121 may include liquid crystal display (LCD), thin film transistor (TFT)
In LCD (TFT-LCD), Organic Light Emitting Diode (OLED) display, flexible display, three-dimensional (3D) display etc. at least
It is a kind of.Some in these displays may be constructed such that transparence to allow user to watch from outside, this is properly termed as transparent
Display, typical transparent display can be, for example, TOLED (transparent organic light emitting diode) display etc..According to specific
Desired embodiment, mobile terminal 100 may include two or more display units (or other display devices), for example, moving
Dynamic terminal may include outernal display unit (not shown) and inner display unit (not shown).Touch screen can be used for detecting touch
Input pressure and touch input position and touch input area.
Memory 130 can store the software program etc. of the processing and control operation that are executed by controller 140, Huo Zheke
Temporarily to store oneself data (for example, telephone directory, message, still image, video etc.) through exporting or will export.And
And memory 130 can store about the vibrations of various modes and audio signal exported when touching and being applied to touch screen
Data.
Memory 130 may include the storage medium of at least one type, and storage medium includes flash memory, hard disk, multimedia
Card, card-type memory (for example, SD or DX memory etc.), random access storage device (RAM), static random-access memory
(SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read only memory
(PROM), magnetic storage, disk, CD etc..Moreover, mobile terminal 100 can execute memory with by network connection
The network storage device of 130 store function cooperates.
The overall operation of the usually control mobile terminal of controller 140.For example, controller 140 executes and voice communication, data
Communication, video calling etc. relevant control and processing.Controller 140 can be with execution pattern identifying processing, will be in touch screen
The handwriting input of upper execution or picture draw input and are identified as character or image.
Power supply unit 150 receives external power or internal power under the control of the controller 140 and provides operation each member
Electric power appropriate needed for part and component.
Various embodiments described herein can be to use the calculating of such as computer software, hardware or any combination thereof
Machine readable medium is implemented.Hardware is implemented, embodiment described herein can be by using application-specific IC
(ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), scene can
Programming gate array (FPGA), controller, microcontroller, microprocessor, is designed to execute function described herein processor
At least one of electronic unit is implemented, and in some cases, such embodiment can be implemented in controller 140.
For software implementation, the embodiment of such as process or function can with allow to execute the individual of at least one functions or operations
Software module is implemented.Software code can by the software application (or program) write with any programming language appropriate Lai
Implement, software code can store in memory 130 and be executed by controller 140.
In addition, mobile terminal 100 further comprises the integrated electricity of application processor 200, primary modem 310 and main radio frequency
Road 320, from modem 410 with from RF IC 420.Wherein, primary modem 310 and main RF IC
320 constitute the first passage that binary channels mobile terminals carry out business processings, and from modem 410 with from RF IC
420 constitute the second channel that binary channels mobile terminal carries out business processing, wherein application processor 200 and main modulation solution
It adjusts device 310 to connect, to receive the operational order of user's triggering and to obtain the corresponding type of operational order, is then referred to according to operation
Corresponding type is enabled, operational order correspondence is issued to primary modem 310 and is handled.
Based on above-mentioned mobile terminal hardware configuration and communication system, each embodiment of the method for the present invention is proposed.
Referring to the functional module signal that Fig. 2, Fig. 2 are one embodiment of binary channels mobile terminal of multiplexing USB port of the present invention
Figure.In the present embodiment, binary channels mobile terminal specifically include first processor 10 for carrying out first passage business processing with
First radio circuit 101, for carrying out the second processor 20 of second channel business processing and the second radio circuit 201, being used for
Manage the power management chip 30 of mobile terminal power supply and the USB socket 40 for connecting external equipment.
In the present invention, binary channels mobile terminal can be handled identical simultaneously by first processor 10, second processor 20
Or different 4G data service, and when handling 4G data service at the same time, then need to carry out first processor 10, second processing
The merging treatment for the data that device 20 is respectively downloaded, further, if needing to carry out between first processor 10, second processor 20
The merging treatment of data needs to be connected to first processor 10, second processor 20 then to carry out data transmission.The present embodiment
In, mobile terminal further includes USB port multiplexer 50, while being respectively equipped with difference in first processor 10, second processor 20
Sub-signal wire pin (namely D+, D- data signal line, differential signal is generated by the variation of voltage, while in USB port specification
In can also carry out the transmission of data), thus, in the present embodiment, pass through connection first especially by USB port multiplexer 50
The differential signal wire pin of processor 10 and the differential signal wire pin of second processor 20, and then realization first processor 10,
Data communication between second processor 20 is to carry out the merging treatments of data.
Unlimited for first processor 10 and the setting of second processor 20 in the present embodiment, existing binary channels is mobile eventually
Primary processor is generally all divided into end specifically to carry out with from processor, the present embodiment with first processor 10 for primary processor
Explanation.Wherein, primary processor specifically includes application processor 200 and primary modem 310 in above-described embodiment, and from processing
Implement body includes the slave modem 410 in above-described embodiment.It should be further noted that first processor 10, second
Processor 20 can include application processor, modem and electric power management circuit, carry out with specific reference to actual needs
(electric power management circuit is not limited to can integrate multiple PMIC circuits on a chips, such as first processor 10, simultaneously for setting
PMIC circuit can also be independently disposed on other chips of mobile terminal).
Application processor 200 can receive the operational order of user's triggering, and obtain the corresponding type of operational order, then root
According to the corresponding type of operational order, operational order correspondence is issued to primary modem 310, at this point, when operational order is net
When network operational order (namely carry out data service), can simultaneously by network operation instruction be sent to primary modem 310 with from
Modem 410, the binary channels that binary channels mobile terminal can be provided by two modems improves communication efficiency, special
Be not two modems can when the type of operational order is network operation instruction, primary modem 310 with from tune
Modulator-demodulator 410 completes the transmission of data by 4G network.In terms of existing technologies, when primary modem 310 is logical
When crossing the progress data service of 4G network, still data service can be carried out by 4G network from modem 410, without drop
To 3G or 2G network, in this way, data transmission efficiency when mobile terminal is communicated can be significantly improved.
Such as by network service such as surfing the Internet, data transmission is same by primary modem 310 and from modem 410
When handle.
When being surfed the Internet by the LTE of the first SIM card corresponding to primary modem 310, the data flow of data channel
Xiang Wei：
Upstream data：User data → application processor → primary modem → main RF IC → operator's net
Network → internet；
Downlink data：Internet → carrier network → main RF IC → primary modem → application
Processor → user data；
Meanwhile when being surfed the Internet by the LTE of second SIM card corresponding to the modem 410, the number of data channel
It is according to flow direction：
Upstream data：User data → application processor → from modem → from RF IC → operator's net
Network → internet；
Downlink data：Internet → carrier network → from RF IC → from modem → application
Processor → user data.
In addition, require to connect by USB socket 40 with external equipment in view of general mobile terminal in the present embodiment, because
This, is to promote the utilization efficiency of mobile terminal USB port and promoting the hardware integration degree in mobile terminal, in the present embodiment,
First processor 10 can also be further realized by USB port multiplexer 50 to be attached with external equipment, to be counted
According to transmission or charging.Therefore, in the present embodiment, differential signal wire pin is also equipped on USB socket 40, thus, the present embodiment
In, the differential signal wire pin and USB socket 40 that pass through connection first processor 10 especially by USB port multiplexer 50
Differential signal wire pin, so realize the data communication between first processor 10 and external equipment to carry out data transmission or
Person's charging.
In the present embodiment, the setting for being connected to instruction with second for the first connection instruction is unlimited, with specific reference to actual needs
It is configured.It should be further noted that the USB port multiplexer 50 in the present embodiment is applied equally to other and has
The processor device, such as Dual-core computer etc. of high-speed interface (such as USB).In the present embodiment, pass through USB port multiplexer
50, first processor 10 can be connected to second processor 20 to realize that double-channel data merges, and can also be connected to the first processing
Device 10 with USB socket 40 to carry out data transmission with external equipment, and make external equipment by USB socket 40 to mobile terminal
It charges.Can double-channel data inside mobile terminal can be realized by a USB port on mobile terminals in the present embodiment
The merging treatment of business, the data transmission and processing of mobile terminal and external equipment and mobile terminal charging, to realize to double
The multi multiplexing of channel mobile terminal USB port, improves the utilization rate of USB port.
It is the functional block diagram of one embodiment of USB port multiplexer in Fig. 2 referring to Fig. 3, Fig. 3.Based on above-mentioned reality
Apply example, in the present embodiment, USB port multiplexer 50 includes detection signal output module 501, switch chip 502.
Connection schematic diagram as shown in Figure 4.Detect signal output module 501 respectively with first processor 10, second processing
Device 20 connects；The multiple switch end of switch chip 502 is respectively corresponded inserts with first processor 10, second processor 20 and USB
The differential signal wire pin connection of seat 40.
In the present embodiment, when first processor 10 is USB main equipment, second processor 20 be USB from equipment when, namely work as
When first processor 10 is USB host (USB main equipment), second processor 20 is USB device (USB from equipment), needing
When carrying out data merging processor, for example user sends request of data to first processor 10 by application processor, to open
Begin to carry out double-channel data merging treatment, the specific implementation process is as follows：
(1) first processor 10 exports first control signal to switch chip 502, with the connection of control switch chip 502 the
The differential signal wire pin of one processor 10 and second processor 20, to physically be connected at first processor 10 and second
Manage the data transmission channel of device 20；
(2) it is defeated to control detection signal to detection signal output module 501 output second control signal for first processor 10
Module 501 exports detection signal to second processor 20 out, to trigger second processor 20 on itself differential signal wire pin
Generate differential signal and by the differential signal wire pin of the connection output of switch chip 502 to first processor 10；
In this step, detection signal output module 501 is chosen as DC-DC circuit module, this circuit module is for generating 5V
Voltage, with for supply second processor 20 carry out USB plug/unplug detection.In the present embodiment, signal output module is detected
501 both can be set in the inside of first processor 10, also can be set in the outside of first processor 20, with specific reference to reality
Situation is configured.In this step, since first processor 10 and the physical data transfer channel of second processor 20 have been connected,
Therefore, the differential signal that second processor 20 generates on itself differential signal wire pin will also be output to first processor 10
On differential signal wire pin.In addition, first processor 10 pass through the differential signal that receives can also further judge currently to
The device type of the USB device of connection, for example be low speed transmissions equipment, full speed transfer equipment, high-speed transmission equipment etc..
(3) when first processor 10 is when itself differential signal wire pin detects differential signal, to second processor 20
Enumeration process is initiated, connect for establishing USB with second processor 20 and carries out double-channel data merging treatment.
In this step, first processor 10 can determine when detecting the differential signal that second processor 20 is exported
There are the USB device of access, so that enumeration process is initiated to second processor 20, to establish USB with second processor 20
Connection, and double-channel data merging treatment can be carried out after being successfully established USB connection.Enumeration process in this step with it is existing
Technology is identical, therefore does not do and excessively repeat.First processor 10 is by enumeration process for determining the spy of second processor 20
Sign, to further determine carry out USB connection using which kind of connection type and second processor 20.
It is further alternative, in one embodiment of binary channels mobile terminal of multiplexing USB port of the present invention, power management core
Piece 30 is connect with USB socket 40, communication channel is equipped between power management chip 30 and first processor 10, which can
To transmit the information such as control command, state, as shown in Figure 4.
In the present embodiment, when mobile terminal is inserted on external equipment by USB socket 40, if power management chip 30
It detects the feedback signal that external equipment is output on USB socket 40, then carries out charge protocol with the external equipment and interact with true
Fixed external equipment, for example determine whether the external equipment is charging equipment or is non-charging equipment, and to first processor
10, which send external equipment, accesses notification message.
Optionally, when first processor 10, second processor 20 carry out double-channel data merging treatment and power management core
When piece 30 detects that the external equipment that accesses on USB socket 40 is charging equipment, power management chip 30 is to first processor 10
It sends charging equipment and accesses notification message, and open charge tunnel so that charging equipment charges to mobile terminal, wherein the
One processor 10 upon receiving the notification message, continues to the communication between second processor 20.
It is further alternative, in one embodiment of binary channels mobile terminal of multiplexing USB port of the present invention, in the first processing
When device 10, second processor 20 carry out double-channel data merging treatment, first processor 10 establishes what USB was connect with external equipment
Process is as follows：
(1) when first processor 10, second processor 20 carry out double-channel data merging treatment and power management chip 30
When detecting that the external equipment accessed on USB socket 40 is computer, power management chip 30 sends to first processor 10 and counts
The notification message of calculation machine access, the form of the notification message are unlimited；
(2) first processor 10 upon receiving the notification message, control switch chip 502 be connected to first processor 10 with
The differential signal wire pin of USB socket 40；And the first setting of load voltage on itself differential signal wire pin, to generate difference
Sub-signal simultaneously passes through the differential signal wire pin of the connection output of switch chip 502 to USB socket 40；
(3) first processor 10 and computer carry out enumeration process, connect for establishing USB with computer and carry out data
Transmission process.In the present embodiment, computer is used as USB from equipment as USB main equipment, first processor 10, therefore by calculating
Machine initiate enumeration process, namely when COMPUTER DETECTION arrive differential signal when, to first processor 10 initiation enumeration process.
It is further alternative, in another embodiment of binary channels mobile terminal of multiplexing USB port of the present invention, at first
When managing device 10, the progress double-channel data merging treatment of second processor 20, first processor 10 is established USB with external equipment and is connect
Process it is as follows：
(1) when first processor 10, second processor 20 carry out double-channel data merging treatment and power management chip 30
When detecting that the external equipment accessed on USB socket 40 is OTG equipment, power management chip 30 is sent to first processor 10
The notification message of OTG equipment access；
(2) first processor 10 upon receiving the notification message, control switch chip 502 be connected to first processor 10 with
The differential signal wire pin of USB socket 40, and to USB socket output supply voltage so that OTG equipment starts and works；
(3) first processor 10 and OTG equipment carry out enumeration process, connect line number of going forward side by side for establishing USB with OTG equipment
According to transmission process, wherein OTG equipment loads the second setting voltage on the differential signal wire pin of USB socket 40, to generate difference
Sub-signal simultaneously passes through the differential signal wire pin of the connection output of switch chip 502 to first processor 10；And at first
When reason device 10 detects differential signal, enumeration process is initiated to OTG equipment, connect line number of going forward side by side for establishing USB with OTG equipment
According to transmission process, wherein first processor 10 is USB main equipment, and OTG equipment is USB from equipment.
It is further alternative, in one embodiment of binary channels mobile terminal of multiplexing USB port of the present invention, switch chip
502 be single-pole double-throw switch (SPDT) chip；First processor 10 is primary processor namely first processor 10 includes application processor
200 and first modem (namely primary modem 310), second processor 20 include second modem (namely
From modem 410).
Optionally, the connection signal of one embodiment of binary channels mobile terminal of multiplexing USB port of the present invention as shown in Figure 5
Figure.Wherein, first processor (processor 1#) further includes the first control wire pin (control line 1), the second control wire pin (control
Line 2) and third control wire pin (control line 3)；Second processor (processor 2#) further includes that (VBUS draws the first power pins
Foot), power management chip (PMIC) includes second source pin (VBUS pin), and USB socket (USB socket X1) further includes third
Power pins (VBUS pin).
Single-pole double-throw switch (SPDT) chip (S1) includes common switch end (A1, B1), first switching switch terminals (A2, B2), second
Switch switch terminals (A3, B3), the differential signal wire pin of common switch end (A1, B1) and first processor (processor 1#) (D+,
D- it) connects, the differential signal wire pin (D+, D-) of the first switching switch terminals (A2, B2) and second processor (processor 2#) are even
It connects, the second switching switch terminals (A3, B3) is connect with the differential signal wire pin (D+, D-) of USB socket (USB socket X1)；
Single-pole double-throw switch (SPDT) chip (S1) further includes enabling pin (EN pin), level configuration pin (DIR pin), and first
Control wire pin (control line 1) is connect with enabled pin (EN pin), and the second control wire pin (control line 2) is drawn with level configuration
Foot (DIR pin) connection, third control wire pin (control line 3) and connect with the signal input part for detecting signal output module, the
One power pins (the VBUS pin of processor 2#) are connect with the signal output end of detection signal output module, second source pin
(the VBUS pin of PMIC) is connect with third power pins (the VBUS pin of USB socket X1).
It is further alternative, as shown in figure 5, the control process that first processor carries out USB port multiplexing is as follows：
(1) first processor (processor 1#) controls wire pin (control line 1) to single-pole double-throw switch (SPDT) chip by first
(S1) enabled pin (EN pin) output signal is to enable single-pole double-throw switch (SPDT) chip (S1), such as processor 1# output control
Line 1 is low level to enable single-pole double-throw switch (SPDT) chip S1；
(2) first processor (processor 1#) controls wire pin (control line 2) to single-pole double-throw switch (SPDT) chip by second
(S1) level configuration pin (DIR pin) output signal with control single-pole double-throw switch (SPDT) chip (S1) common switch end (A1,
B1 it) is connected with the first switching switch terminals (A2, B2) or the second switching switch terminals (A3, B3), for example, processor 1# output control line
2 be high level, and then configures the level (such as high level) of DIR pin, and then switches common switch end (A1, B1) with first
Switch terminals (A2, B2) conducting；Conversely, processor 1# output control line 2 be low level, and then configure DIR pin level (such as
Low level), and then common switch end (A1, B1) is made to switch switch terminals (A3, B3) conducting with second.
In addition, when carrying out data merging treatment between first processor 10 and second processor 20 and establish USB connection,
Namely processor 1# is USB main equipment, when processor 2# is that USB carries out USB connection from equipment, first processor is further also wrapped
It includes：
(3) first processor (processor 1#) controls wire pin (control line 3) to detection signal output module by third
Signal input part output signal with control detection signal output module turn on or off detection signal output.Due to the first processing
Device 10 and second processor 20 are by the USB connection established between the different components of same equipment, therefore, the correlation based on USB
Agreement regulation (USB is needed from equipment to USB main equipment output difference signal, namely is needed from voltage), therefore, the present embodiment
In by detection signal output module triggering generate differential signal, thus inform first processor (processor 1#) there are USB from
The input of equipment.
In the present embodiment, when carrying out the layout of each component of binary channels mobile terminal, device, need that single-pole double throw will be switched
Switch chip S1 is as close as possible to processor #2, to minimize since data path is multiplexed the influence to signal integrity.
It is specifically based on the connection type of above-mentioned Fig. 5 below, several situations of the multiplexing of USB port are carried out specifically respectively
Bright, specifically with processor #1 for USB host in this example, processor #2 is illustrated for USBdevice.
1, the communication between processor #1 and processor #2
Processor #1 output control line 1 is that low level enables switch chip S1, and output control line 2 is that high level makes to switch
The A1 foot of S1 is connected to A2 foot, and B1 foot is connected to B2 foot；
Processor #1 output control line 3 is the enabled detection signal output module of high level, is allowed to export 5V level and is supplied to
The VBUS pin of processor #2；
The VBUS pin of processor #2 causes the level of D+/D- to change after powering on, and processor #1 detects this change
Then think there is USB device insertion after change, and then initiate enumeration process, processor #1, #2 establish USB connection.
2, external USB host (such as computer)/charger insertion
At this time according to the state of processor #1, it is divided into two following situations：
During 2.1 processor #1 are just being communicated with processor #2, the A1 foot of switch chip S1 is connected to A2 foot at this time, B1 foot and B2
Foot connection；
When mobile terminal is inserted into external equipment, external equipment output 5V power supply is loaded into the VBUS of USB socket X1
On.After PMIC detects the voltage on VBUS, the interaction of charge protocol is first carried out, is judged with the type to external equipment,
If it is determined that the external equipment of insertion is：
(I) charger, then PMIC by communication channel inform processor #1, continued to after processor #1 is notified with
The communication of processor #2 is constant, and PMIC then turns on charge tunnel, and charger is allowed to charge battery；
(II) computer, then PMIC informs processor #1 by communication channel, by 3.3V electricity after processor #1 is notified
On the data line D+ (or D-) of USB, output control line 3 is low level, the output of shutdown detection signal output module for pressure load；
Processor #1 processor output control line 1 is that low level enables switch chip S1, and output control line 2 is low level, makes switch S1
A1 foot be connected to A3 foot, B1 foot is connected to B3 foot；At this point, the level of COMPUTER DETECTION to D+/D- foot is then recognized after changing
To there is USB device insertion, and then enumeration process is initiated, computer is established USB with processor #1 and connect.
2.2 processor #1 are not communicated with processor #2, and the A1 foot of switch chip S1 is connected to A3 foot at this time, B1 foot and B3 foot
Connection.Existing single channel mobile terminal, therefore the processing mode with existing single channel mobile terminal are equivalent under such situation
It is identical, therefore no longer do and excessively repeat.
3, outside OTG equipment is inserted into
When external OTG equipment is inserted on the USB socket of binary channels mobile terminal of the present invention, OTG equipment is by PMIC's
USB_ID pin drags down, and can be divided into two following situations according to the state of processor #1 at this time：
During 3.1 processor #1 are just being communicated with processor #2, the A1 foot of switch chip S1 is connected to A2 foot at this time, B1 foot and B2
Foot connection；
According to the principle of OTG outside priority communication, needs processor #1 first to disconnect and the connection of processor #2, be connected to
In external OTG equipment, detailed process includes：
PMIC informs processor #1 by communication channel, and output control line 3 is low level after processor #1 is notified, closes
The output of disconnected detection signal output module；Processor #1 processor output control line 1 is that low level enables switch chip S1, output
Control line 2 is low level, is connected to the A1 foot of switch S1 with A3 foot, B1 foot is connected to B3 foot；Subsequent OTG equipment is by 3.3V level
It is added on data line D+ (or D-), processor #1 detects that the level of D+/D- foot changes, and thinks have USB device to insert
Enter, and then initiate enumeration process, OTG equipment is established USB with processor #1 and connect.
3.2 processor #1 are not communicated with processor #2, and the A1 foot of switch chip S1 is connected to A3 foot at this time, B1 foot and B3 foot
Connection；Existing single channel mobile terminal, therefore the processing mode with existing single channel mobile terminal are equivalent under such situation
It is identical, therefore no longer do and excessively repeat.
Referring to Fig. 6, Fig. 6 is that the functional module of another embodiment of binary channels mobile terminal of multiplexing USB port of the present invention is shown
It is intended to.Based on the above embodiment, in the present embodiment, mobile terminal further includes isolation circuit 60, and power management chip 30 is equipped with
The differential signal wire pin of differential signal wire pin, power management core 30 is believed by isolation circuit 60 and the difference of USB socket 40
The connection of number wire pin, isolation electricity 60 lead to first processor 10, second processor 20 for isolated power supply managing chip 30
Interference when letter, connection schematic diagram as shown in Figure 7.
In the present embodiment, isolation circuit 60 can be active circuit or passive circuit or active electric with passive mixing
Road.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be mobile phone, computer, clothes
Business device, air conditioner or the network equipment etc.) execute method described in each embodiment of the present invention.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of binary channels mobile terminal of multiplexing USB port, which is characterized in that the binary channels mobile terminal include for into
The first processor and the first radio circuit of row first passage business processing, at second for carrying out second channel business processing
Manage power management chip of the device with the second radio circuit, for managing the mobile terminal power supply and for connecting external equipment
USB socket；The first processor is primary processor, and the second processor is from processor, the first processor, institute
It states and is respectively arranged with differential signal wire pin on second processor and the USB socket；The mobile terminal further includes the end USB
Mouth multiplexer；
The USB port multiplexer, for being connected to institute when receiving the first connection instruction that the first processor is sent
The differential signal wire pin of first processor and the differential signal wire pin of the second processor are stated for first processing
Device and the second processor carry out double-channel data merging treatment；
And when receiving the second connection instruction that the first processor is sent, it is connected to the difference letter of the first processor
The differential signal wire pin of number wire pin and the USB socket, for what is connected on the first processor and the USB socket
External equipment carries out data transmission handling, or so that external equipment fills the mobile terminal by the USB socket
Electricity；
Using first processor as primary processor, primary processor includes application processor and primary modem, includes from processor
Application processor with from modem；Two modems can when the type of operational order is that network operation instructs,
Primary modem completes the transmission of data with 4G network is passed through from modem.
2. the binary channels mobile terminal of multiplexing USB port as described in claim 1, which is characterized in that the USB port multiplexing
Device includes detection signal output module, switch chip；The detection signal output module respectively with the first processor, institute
State second processor connection；The multiple switch end of the switch chip respectively correspond at the first processor, described second
Manage the differential signal wire pin connection of device and the USB socket；
When the first processor is USB main equipment, the second processor is USB from equipment and is carrying out double-channel data conjunction
And before handling, the first processor exports first control signal to the switch chip, to control the switch chip connection
The differential signal wire pin of the first processor and the second processor；
The first processor is defeated to control the detection signal to detection signal output module output second control signal
Module exports detection signal to the second processor out, to trigger the second processor on itself differential signal wire pin
Generate differential signal and by the differential signal wire pin of the connection output of the switch chip to the first processor；
When the first processor is when itself differential signal wire pin detects the differential signal, to the second processor
Enumeration process is initiated, connect for establishing USB with the second processor and carries out double-channel data merging treatment.
3. the binary channels mobile terminal of multiplexing USB port as claimed in claim 2, which is characterized in that the power management core
Piece is connect with the USB socket, and communication channel is equipped between the power management chip and the first processor；
When the mobile terminal is inserted on external equipment by the USB socket, if the power management chip detects
External equipment is output to the feedback signal on the USB socket, then carries out charge protocol with the external equipment and interact to determine and be somebody's turn to do
External equipment, and send external equipment to the first processor and access notification message.
4. the binary channels mobile terminal of multiplexing USB port as claimed in claim 3, which is characterized in that when first processing
Device, the second processor carry out double-channel data merging treatment and the power management chip detects on the USB socket
When the external equipment of access is charging equipment, the power management chip sends charging equipment access to the first processor and leads to
Know message, and open charge tunnel so that the charging equipment charges to the mobile terminal, wherein first processing
Device continues to the communication between the second processor after receiving the notification message.
5. the binary channels mobile terminal of multiplexing USB port as claimed in claim 3, which is characterized in that when first processing
Device, the second processor carry out double-channel data merging treatment and the power management chip detects on the USB socket
When the external equipment of access is computer, the power management chip sends the notice that computer accesses to the first processor
Message；
The first processor after receiving the notification message, control the switch chip be connected to the first processor with
The differential signal wire pin of the USB socket；And the first setting of load voltage on itself differential signal wire pin, to generate
Differential signal simultaneously passes through the differential signal wire pin of the connection output of the switch chip to the USB socket；
The first processor and computer carry out enumeration process, connect and carry out data transmission for establishing USB with computer
Processing, wherein when COMPUTER DETECTION arrive the differential signal when, to the first processor initiate enumeration process, wherein calculating
Machine is USB main equipment, and the first processor is USB from equipment.
6. the binary channels mobile terminal of multiplexing USB port as claimed in claim 3, which is characterized in that when first processing
Device, the second processor carry out double-channel data merging treatment and the power management chip detects on the USB socket
When the external equipment of access is OTG equipment, the power management chip sends the logical of OTG equipment access to the first processor
Know message；
The first processor after receiving the notification message, control the switch chip be connected to the first processor with
The differential signal wire pin of the USB socket, and to USB socket output supply voltage so that OTG equipment starts and works；
The first processor and OTG equipment carry out enumeration process, connect for establishing USB with OTG equipment and carry out data biography
Defeated processing, wherein OTG equipment loads the second setting voltage on the differential signal wire pin of the USB socket, to generate difference
Signal simultaneously passes through the differential signal wire pin of the connection output of the switch chip to the first processor；And when described the
When one processor detects the differential signal, enumeration process is initiated to OTG equipment, is connect simultaneously for establishing USB with OTG equipment
Carry out data transmission handling, wherein the first processor is USB main equipment, and OTG equipment is USB from equipment.
7. the binary channels mobile terminal of the multiplexing USB port as described in any one of claim 2-6, which is characterized in that described
Switch chip is single-pole double-throw switch (SPDT) chip；The first processor includes application processor and the first modem, described
Second processor includes second modem.
8. the binary channels mobile terminal of multiplexing USB port as claimed in claim 7, which is characterized in that the first processor
It further include the first control wire pin, the second control wire pin and third control wire pin；The second processor further includes first
Power pins；The power management chip includes second source pin；The USB socket further includes third power pins；
The single-pole double-throw switch (SPDT) chip include common switch end, first switching switch terminals, second switching switch terminals, it is described public
Switch terminals are connect with the differential signal wire pin of the first processor, the first switching switch terminals and the second processor
Differential signal wire pin connection, it is described second switching switch terminals is connect with the differential signal wire pin of the USB socket；
The single-pole double-throw switch (SPDT) chip further includes enabled pin, level configuration pin, the first control wire pin with it is described
Enabled pin connection, the second control wire pin are connect with the level configuration pin, the third control wire pin and institute
State the signal input part connection of detection signal output module, the letter of first power pins and the detection signal output module
The connection of number output end, the second source pin are connect with the third power pins.
9. the binary channels mobile terminal of multiplexing USB port as claimed in claim 8, which is characterized in that the first processor
By it is described first control the enabled pin output signal from wire pin to the single-pole double-throw switch (SPDT) chip to enable described
Single-pole double-throw switch (SPDT) chip；
The first processor is configured by the second control wire pin to the level of the single-pole double-throw switch (SPDT) chip
Pin output signal is switched with the common switch end for controlling the single-pole double-throw switch (SPDT) chip with the first switching switch terminals or second
Switch terminals conducting；
The first processor is defeated by the signal input part that the third controls wire pin to the detection signal output module
Signal turns on or off detection signal output to control the detection signal output module out.
10. such as the binary channels mobile terminal of multiplexing USB port of any of claims 1-6, which is characterized in that described
Mobile terminal further includes isolation circuit, and the power management chip is equipped with differential signal wire pin；The power management chip
Differential signal wire pin connect by the isolation circuit with the differential signal wire pin of the USB socket；The isolation electricity
Road be used for be isolated the power management chip to the first processor, the second processor communicates when interference.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610066439.3A CN105630726B (en) | 2016-01-29 | 2016-01-29 | The binary channels mobile terminal of multiplexing USB port |
| PCT/CN2016/096394 WO2017128707A1 (en) | 2016-01-29 | 2016-08-23 | Dual-channel mobile terminal for reusing usb port and information processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610066439.3A CN105630726B (en) | 2016-01-29 | 2016-01-29 | The binary channels mobile terminal of multiplexing USB port |
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| Publication Number | Publication Date |
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| CN105630726A CN105630726A (en) | 2016-06-01 |
| CN105630726B true CN105630726B (en) | 2018-11-20 |
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| CN201610066439.3A Active CN105630726B (en) | 2016-01-29 | 2016-01-29 | The binary channels mobile terminal of multiplexing USB port |
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| WO (1) | WO2017128707A1 (en) |
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| CN105630726B (en) * | 2016-01-29 | 2018-11-20 | 努比亚技术有限公司 | The binary channels mobile terminal of multiplexing USB port |
| CN106484126A (en) * | 2016-09-12 | 2017-03-08 | 广东欧珀移动通信有限公司 | A kind of OTG function open method and terminal |
| WO2019015681A1 (en) | 2017-07-20 | 2019-01-24 | 青岛海信电器股份有限公司 | Terminal device and control method therefor |
| CN107277416A (en) * | 2017-07-20 | 2017-10-20 | 青岛海信电器股份有限公司 | television terminal and control method |
| CN108009116B (en) * | 2017-12-22 | 2021-01-05 | 努比亚技术有限公司 | MicroUSB interface circuit and mobile terminal thereof |
| CN111221761B (en) * | 2018-11-23 | 2024-01-30 | 比亚迪股份有限公司 | SATA interface device and terminal equipment comprising same |
| CN109542822B (en) * | 2018-12-17 | 2024-03-12 | 广州吉欧电子科技有限公司 | USB OTG interface isolation circuit |
| CN111651387B (en) * | 2020-05-25 | 2022-02-15 | 维沃移动通信有限公司 | Interface circuit and electronic equipment |
| CN113778921B (en) * | 2020-06-10 | 2023-06-23 | 成都鼎桥通信技术有限公司 | USB data line switching control circuit and method |
| CN111949594B (en) * | 2020-08-18 | 2022-10-28 | 上海乐今通信技术有限公司 | Mobile terminal with multiple USB interfaces and implementation method |
| CN112260911B (en) * | 2020-11-09 | 2022-05-17 | Oppo广东移动通信有限公司 | Communication device |
| CN115208433A (en) * | 2021-04-08 | 2022-10-18 | Oppo广东移动通信有限公司 | Charging cable, power supply device, terminal device and communication system |
| CN114142582A (en) * | 2021-10-14 | 2022-03-04 | 合肥国轩高科动力能源有限公司 | Be applicable to multichannel DC power supply parallel arrangement |
| CN114237378B (en) * | 2022-02-24 | 2022-07-12 | 荣耀终端有限公司 | Electronic device |
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