CN107948568A - Realize the method and device of wired biography screen - Google Patents
Realize the method and device of wired biography screen Download PDFInfo
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- CN107948568A CN107948568A CN201611043054.1A CN201611043054A CN107948568A CN 107948568 A CN107948568 A CN 107948568A CN 201611043054 A CN201611043054 A CN 201611043054A CN 107948568 A CN107948568 A CN 107948568A
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- usb interface
- local terminal
- audio
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
- H04N21/43632—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network involving a wired protocol, e.g. IEEE 1394
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
-
- 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]
Abstract
The present invention relates to the method and device for realizing wired biography screen.The described method includes：General driving based on the first equipment pre-installation provides more than two communication protocol ports to the first equipment, establishes local terminal by the first USB interface of the communication protocol port and local terminal and is connected with the usb communication of the first equipment；Detect that the first USB interface has the information from the first equipment, detection transmits the port of the information, if the port for being used for transmission audio, video data, then the information is identified as audio, video data, and corresponding audio and video are played in local terminal；The manipulation signal to the first equipment that detects of local terminal is obtained, the manipulation signal adaptation is arrived and is used for transmission the port for manipulating signal, and is sent by the first USB interface to the first equipment.The present invention can simplify wiring when passing screen, reduce to terminal block difficulty.
Description
Technical field
The present invention relates to technical field of data transmission, more particularly to the method and device for realizing wired biography screen.
Background technology
Pass screen and be achieved in that computer etc. shows screen page and voice data of the source device by intercepting system, and send
To display device, display device decodes and shows and play the picture and sound that send over.Pass screen be frequently used in meeting or
Person's teaching field, user needs to project the audio-video signal of computer to carry out on the liquid crystal electronic whiteboard or projector of large-size screen monitors
Show, the audio, video data on computer is sent to display device by corresponding data cable.But traditional biography screen display pattern
In, display device only as information displaying function, without reception user operation instruction and returns the function of display source, not side
Just user does demonstration operation.
Based on this, in based on the biography screen pattern for touching screen display device, it is proposed that the touch for detecting display device
Signal feedback to the computer end is manipulated, it is corresponding, need increase by one to be used for transmission control between computer and the display device
The connecting line of signal.Therefore need to need between computer and display device two or more than two connecting line (HDMI wire+USB line/
RS232 lines, VGA line+tone frequency channel wire+USB line or RS232 lines etc.) it could realize.It is complicated in the presence of wiring, will to user's professional standards
Ask the problem of higher.
The content of the invention
Based on this, the method and device provided in an embodiment of the present invention for realizing wired biography screen, when can simplify biography screen display
Wiring, reduce to terminal block difficulty.
One aspect of the present invention provides the method for realizing wired biography screen, including：
By default first USB interface of local terminal some communication protocol ports, the communication protocol are provided to the first equipment
Port can be identified by the general driving of the first equipment；The general driving is provided between the first equipment and standard USB device
The common communication protocol of communication, the communication protocol port include at least：It is used for transmission the port of audio, video data and for passing
The port of defeated manipulation signal；
Establish local terminal by the communication protocol port, first USB interface and be connected with the usb communication of the first equipment；
Detect that the first USB interface has the information from the first equipment, the port of the information is transmitted in detection, if for passing
The port of defeated audio, video data, then be identified as audio, video data by the information；According to the audio, video data in local terminal broadcasting pair
The audio and video answered；
The manipulation signal to the first equipment that detects of local terminal is obtained, the manipulation signal adaptation is manipulated to being used for transmission
The port of signal, and sent by the first USB interface to the first equipment, indicate that first equipment is receiving the manipulation letter
Performed after number and manipulate that signal is corresponding acts with described.
Another aspect of the present invention provides a kind of method for realizing wired biography screen, including：
The communication protocol end provided by the second equipment of the general driving identification access local terminal secondary USB interface of pre-installation
Mouthful, the general driving provides the common communication protocol to communicate between local terminal and standard USB device, the communication protocol port
Include at least：It is used for transmission the port of audio, video data and is used for transmission the port of manipulation signal；Second equipment is preset with
First USB interface, second equipment accesses local terminal secondary USB interface by first USB interface, and passes through described first
USB interface provides some communication protocol ports that can be identified by the general driving of the first equipment；
Intercept and capture picture and/or the audio that local terminal plays；
The audio, video data intercepted is sent to second equipment by the designated port of local terminal secondary USB interface
First USB interface, the designated port are adapted with being used for transmission the port of audio, video data；
The information of the first USB interface from second equipment is received, the port of the information is transmitted in detection；If for
The port of transmission manipulation signal, then be identified as manipulation signal by the information, and performs the first equipment and believe with the manipulation event
Number corresponding action.
Another aspect of the invention provides a kind of device for realizing wired biography screen, including：
Port analog module, some communication protocol ports are provided by default first USB interface of local terminal to the first equipment,
The communication protocol port can be identified by the general driving of the first equipment；The general driving provides the first equipment and standard
The common communication protocol to communicate between USB device, the communication protocol port include at least：It is used for transmission the end of audio, video data
Mouth and the port for being used for transmission manipulation signal；
Connection establishment module, for establishing local terminal by the communication protocol port, first USB interface and being set with first
Standby usb communication connection；
Audio, video data receiving module, for detecting that the first USB interface has the information from the first equipment, detection transmission
The port of the information, if the port for being used for transmission audio, video data, is then identified as audio, video data by the information；According to first
The audio, video data that USB interface receives, corresponding audio and video are played in local terminal；
Manipulate signal return module, the manipulation signal to the first equipment detected for obtaining local terminal, by the manipulation
Signal adaptation is sent to the first equipment to the port for being used for transmission manipulation signal, and by the first USB interface of local terminal, indicates institute
State the first equipment and performed after the manipulation signal is received and manipulate that signal is corresponding acts with described.
Another aspect of the invention provides a kind of device for realizing wired biography screen, including：
USB identification modules, the second equipment for the general driving identification access local terminal secondary USB interface by pre-installation
The communication protocol port of offer, the general driving provide the common communication protocol to communicate between local terminal and standard USB device,
The communication protocol port includes at least：It is used for transmission the port of audio, video data and is used for transmission the port of manipulation signal；Institute
State the second equipment and be preset with the first USB interface, second equipment accesses the 2nd USB of local terminal by first USB interface and connects
Mouthful, and provide some communication protocol ports that can be identified by the general driving of the first equipment by first USB interface；
Audio and video interception module, for intercepting and capturing the picture and/or audio of local terminal broadcasting；
Audio and video sending module, for the designated port by the audio, video data intercepted by local terminal secondary USB interface
Send to the first USB interface of second equipment, the designated port and be adapted with being used for transmission the port of audio, video data；
Signal receiving module is manipulated, for receiving the information of the first USB interface from second equipment, detection transmission
The port of the information；If the port for being used for transmission manipulation signal, then the information is identified as manipulation signal, and make the first equipment
Perform and manipulate that event signal is corresponding acts with described.
Above-mentioned technical proposal, connects by the way that display device to be modeled to the USB device of standard, and by the USB of display device
Mouth provides required multiple communication protocol ports for display source device, is connect by the USB of the communication protocol port, display device
The USB interface of mouth and display source device establishes display device with showing that the usb communication of source device is connected；When detecting that display sets
When standby USB interface has the information from display source device, the port of the information is transmitted in detection, if being used for transmission audio and video number
According to port, then the information is identified as audio, video data, corresponding audio and video is played in display device；At the same time display is obtained to set
The manipulation signal played to display source device that standby end detects, the manipulation signal adaptation is arrived to be used for transmission manipulates signal
Port, and sent by the USB interface of display device to display source device, so that display device performs the manipulation signal and corresponds to
Action.Show the biography screen displaying that source device and display device only need a connecting line to realize audio, video data, at the same time
It can also realize the passback of display device manipulation signal, realize the effect for being manipulated at display device end and showing source device, simplify
The wiring of screen display is passed, is reduced to terminal block difficulty.
Brief description of the drawings
Fig. 1 is the system environments schematic diagram for implementing the method that the present invention realizes wired biography screen；
Fig. 2 is the indicative flowchart of the method for realizing wired biography screen of an embodiment；
Fig. 3 is the detail flowchart of the method for realizing wired biography screen of an embodiment；
Fig. 4 is the indicative flowchart of the method for realizing wired biography screen of second embodiment；
Fig. 5 is the detail flowchart that the display source device of second embodiment realizes the method for wired biography screen；
Fig. 6 is the schematic diagram of the device for realizing wired biography screen of an embodiment；
Fig. 7 is the schematic diagram of the device for realizing wired biography screen of second embodiment.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 is the system environments schematic diagram for the method for implementing the wired biography screen of the present invention.As shown in Figure 1, the embodiment of the present invention
System environments include display source device (i.e. the first equipment) and display device (i.e. the second equipment).It is described to show that source device be
The operations such as PC, mobile phone have the equipment or system of operating system, and the general driving of at least one pre-installation is possessed in its system, described
General driving provides the common communication protocol to communicate between display source device and standard USB device.The display source device is also
At least provided with a USB interface (i.e. USB interface B/ secondary USB interfaces), and the attribute of the USB interface is set to USB host.
The display device has the equipment or system of operating system for operation, such as large-size screen monitors electronic whiteboard, the display are set
It is standby to be provided with memory and processor；The display device is also preset with a USB interface, and (i.e. the first USB of USB interface A/ connect
Mouthful), the attribute of the USB interface is set to USB device, for showing that the USB interface B of source device is docked；In the processor
Operation has corresponding processor program, can identify the information type that USB interface A is received；One of purposes of the memory
To show that source device or display device need the downloader for the specific program or specific program used for storing.
Based on the system environments schematic diagram shown in Fig. 1, Fig. 2 is the schematic of the method for realizing wired biography screen of an embodiment
Flow chart；In this embodiment it is that being applied to illustrate exemplified by display device end in this way, the display device includes the
One USB interface, for showing that the secondary USB interface of source device is connected.
As shown in Fig. 2, the present embodiment realizes that the method for wired biography screen includes step：
S11, some communication protocol ports, the communication are provided by default first USB interface of local terminal to the first equipment
Protocol port can be identified by the general driving of the first equipment；The general driving provides the first equipment and standard USB device
Between the common communication protocol that communicates, the communication protocol port includes at least：It is used for transmission port and the use of audio, video data
In the port of transmission manipulation signal；
In the present embodiment, local terminal refers to display device, which can be modeled to standard by its USB interface
USB device；First equipment is to show source device, and the general driving of display source device pre-installation can independently drive inhomogeneity
The standard USB device of type, corresponding client software can be also provided with by showing in source device, and the biography screen for receiving user is grasped
Make.
USB interface is concept physically in the present embodiment, and is then face by the communication protocol port that USB interface provides
To the abstract concept of USB Connection Services, different communication protocol ports can be identified by corresponding port and be distinguished, such as logical
Port numbers are crossed to distinguish.In the present embodiment, the port-mark of each communication protocol port can be driven by Universal USB and know
Not, also by the port-mark of communication protocol port, to carry out polytype information, (including sound regards the respective processor in local terminal
Frequency according to or manipulation signal) transmitting-receiving, to realize the transmitting-receiving for realizing by same physical interface a variety of different types of information.
Corresponding, display device can be modeled to standard USB device, refer to that display device can be based on general standard USB
Communication protocol enumerates several standard USB communication protocol ports, different USB communication protocol ports using different port-marks into
Row is distinguished.
S12, the second equipment and described first are established by the first USB interface of the communication protocol port, the second equipment
The usb communication connection of equipment；
In the present embodiment, the second equipment is display device, if the standard USB that the display device can be modeled to dry type is set
It is standby, and corresponding communication protocol port is provided.And the standard USB device that display device is modeled to, shows source device energy free drive
It is recognized (i.e. by showing that the Universal USB driving that source device system generally carries just can identify, without specific general drive
It is dynamic).
Preferably, the communication protocol port further includes：It is used for transmission the port of link information.It is corresponding, when display is set
After the standby display source device for confirming access meets the requirements, successful connection instruction can be also generated；And the successful connection is instructed suitable
The port for being used for transmission link information is fitted on, is sent by the first USB interface to display source device, to inform display source device institute
State display device and meet the requirement that audio video transmission is shown.
S13, detects that the first USB interface has the information from the first equipment, and the port of the information is transmitted in detection, if with
In the port of transmission audio, video data, then the information is identified as audio, video data；Set according to the audio, video data second
It is standby to play corresponding audio and video；
Preferably, the second equipment also needs to parse audio, video data, is decompressed and/or decoding process.
S14, obtains the manipulation signal that detects of the second equipment, by the manipulation signal adaptation to being used for transmission manipulation signal
Port, and sent by the first USB interface to the first equipment, indicate first equipment after the manipulation signal is received
Perform and manipulate that signal is corresponding acts with described.
Wherein, the manipulation event signal action accordingly can be any action that first equipment is able to carry out.
It should be noted that the execution sequence of above-mentioned steps S13 and S14 are not limited to said sequence, two-part execution is suitable
Sequence interchangeable, or can also perform at the same time.
Preferably, the communication protocol port further includes：For accessing the port of memory space.In display source device with showing
After showing equipment successful connection, if display source device is mounted with the software program for intercepting and capturing display picture and/or audio in advance,
Currently playing display picture and/or audio are then intercepted and captured by the software program, is sent after being carried out packing processing to display
Equipment；If display source device does not install such software program in advance, (can be stored empty by accessing the memory of display device
Between), read the data prestored in the memory of display device or program to intercept and capture currently playing display picture and/
Or the software program of audio, and packing processing (equivalent to one external USB flash disk of display device at this time) is carried out, at packing
Audio, video data video after reason is sent to display device to corresponding port, and by USB interface B.The second way is to aobvious
Show that the requirement of source device is lower, even if it does not install corresponding program in advance, for display source device (such as PC),
When being inserted into above-mentioned display device, it can see one " moveable magnetic disc " in " my computer " root, be display device
Memory space, thus show source device just can operation is prestored from " moveable magnetic disc " application program, Jin Ershi
The effect of plug and play is showed.Display device receives audio, video data from USB interface A, is played out after being handled, and realizes
The biography screen of audio, video data is shown.
On the other hand, the manipulation signal played to display source device that display device end detects can be also obtained, by described in
Manipulation signal adaptation is returned to the port for being used for transmission manipulation signal by the USB interface A of display device so that display
Source device performs the corresponding action of the manipulation signal.Such as：Touch event is converted into HID touch events by display device,
It is modeled to HID touch apparatus, and the HID touch events are submitted to display source device system by USB interface A.For display
For source device system, in the way of the action event of conventional treatment HID touch apparatus, held according to the action event received
The corresponding action of row.
Based on above-mentioned wired screen transmission method, on the one hand can be provided for common display source device need to use it is all kinds of
USB communication protocol port, common display source device can free drive identification, moreover it is possible to according to the data prestored in display device
Information completes corresponding audio, video data and intercepts and captures function, realizes the effect of plug and play；Screen equipment is passed among need not be extra,
Only need a USB connecting line to realize that display source device is connected with the limited biography screen of display device, while can also realize display
Equipment manipulates the passback of signal, and user can manipulate at display device end and show source device, simplify the wiring for passing screen display.
It is understood that the port of link information is used for transmission in the present embodiment, is used for transmission the end of audio/video information
Mouth can be respectively HID1 ports, HID2 ports；The port for being used for transmission memory space access instruction can be the port of Mac types.
In other words, according to actual needs display device can be made to be modeled to polytype energy by its USB interface A in the present embodiment
The communication protocol port of enough shown source device system free drive identification, and some communication protocol ports can be shown source and set
The driving of standby general driving independently, is respectively used to transmit different data messages.
Fig. 3 is the detail flowchart of the method for realizing wired biography screen of an embodiment；With reference to figure 3, display device detects
USB interface A has the information from display source device, and the port of the information is transmitted in detection, if the end for being used for transmission passback request
Mouthful, then the information is identified as passback request instruction, opens display device and be used to obtain the manipulation to the first equipment detected
The function of signal.Specifically, display device is as follows the step of need to performing：
S101, after the operation of display apparatus processes device program, detects the whether qualified display source devices of its USB interface A
Access.
Whether detection USB interface A has equipment connection, if so, further detecting whether the equipment is satisfactory
Show source device.Specifically, whether the equipment that access can be detected by specific ID (PID/VID) is that satisfactory display source is set
It is standby.
S102, if detecting display source device access, the processor program of display device is set display by USB interface A
It is standby to be modeled to standard USB device, enable to have the display source device free drive of general driving to identify it.
S103, generation successful connection instruction, confirms to pass screen successful connection；
Successful connection instruction is fitted to the port for being used for transmission link information in the present embodiment, and is connect by USB
Mouth A is sent to the USB interface B of display source device, informs that display source device local terminal meets the requirement that audio video transmission is shown.
S104, detects whether the USB interface A of display device has from display source device audio-video document stream；
In the present embodiment, after detecting that the USB interface A of display device has the information from display source device, further inspection
The port for transmitting the information is surveyed, if the port for being used for transmission audio, video data, then the information can be identified as audio, video data.
In the present embodiment, display device also provides the port for being used for accessing memory space to display source device.In this step
Before, there is the information from display source device if detecting the USB interface A of display device, the port of the information is transmitted in detection, if
For the port for accessing memory space, then the information is identified as memory space access instruction；Default by display device is deposited
Store up space representation and give display source device so that display source device system interface is used to cut by running the program of the memory space
Obtain picture and/or the audio that display source device plays.It is stored with the default memory space for intercepting and capturing audio, video data
Exe executable programs or the download information for storing corresponding program.Therefore the display source device is by accessing display device
Memory space can realize the picture played to it or the function that audio is intercepted and captured.
S105, by the audio-video document stream received by USB interface A by decompression and/or decoding, at display device end
Play corresponding picture and/or audio.
As a preferred embodiment, after receiving audio-video document stream, it can also monitor whether to have and default be used to refer to
Show pass screen displaying Trig control signal, if listening to the Trig control signal, to audio-video document stream by decompression and/
Or decoding, corresponding audio and video are played in local terminal according to obtained audio, video data.Wherein, the Trig control signal can be
The specific touch behaviour occurred on the default human-computer interaction interface of operation signal or local terminal that local terminal pre-set button is pressed
Control signal, i.e., user can by hardware trigger mode/software triggering mode, to control displaying of the local terminal to audio, video data, with
Flexibly control passes the effect of screen displaying.
S106, detects whether the USB interface A of display device has the passback request instruction from display source device；
In the present embodiment, there are the information from display source device, detection transmission if detecting the USB interface A of display device
The information, if the port for being used for transmission passback request, then can be identified as passback request instruction by the port of the information.
S107, if receiving the passback request instruction from display source device, opens being detected for acquisition for display device
The manipulation signal to display source device the function thread of corresponding function (or operation), obtain display device end to showing source
The manipulation signal of equipment.
S108, the manipulation signal adaptation is arrived and is used for transmission the port for manipulating signal, and is connect by the USB of display device
Mouth A is sent to display source device, so that display source device performs the corresponding action of the manipulation signal.
It is understood that the above-mentioned trigger mechanism that screen displaying is passed to audio, video data, is also applied for control local terminal pair
The transmission of the manipulation signal, flexibly to control the effect of distal end manipulation.
It is understood that step S104~S105, the execution sequence of step S106~S108 are not limited to example in figure,
Step S106~S108 can be first carried out, then performs step S104~S105；Or two parts are according between the time each set
Performed every parallel.
Display device, is modeled to the USB device of standard by wired screen transmission method of the present embodiment, and passes through display device
USB interface is provided for display source device needed for multiple communication protocol ports, pass through the communication protocol port, display device
USB interface establishes display device with showing that the usb communication of source device is connected；Shown when detecting that display device USB interface has to come from
When showing the information of source device, the port of the information is transmitted in detection, if the port for being used for transmission audio, video data, then by the information
Audio, video data is identified as, corresponding audio and video are played in display device；Obtain that display device end detects at the same time to display
The manipulation signal that source device plays, by the manipulation signal adaptation to the port for being used for transmission manipulation signal, and is set by display
Standby USB interface is sent to display source device, so that display device performs the corresponding action of the manipulation signal, is realized and is being shown
Manipulation of the equipment end to display source device.Without extra middle biography screen equipment, show that source device and display device only need one
Bar USB connecting lines can realize the biography screen displaying of audio, video data, while can also realize the passback of display device manipulation signal, letter
The wiring for passing screen display is changed, has reduced to terminal block difficulty.
Fig. 4 is the indicative flowchart of the method for realizing wired biography screen of second embodiment；The present embodiment realizes wired biography
The method of screen is mainly used in display source device end.Refering to what is shown in Fig. 4, the present embodiment realizes that the method for wired biography screen includes step
It is as follows.
Step S21, carried by the second equipment of the secondary USB interface of general driving identification the first equipment of access of pre-installation
The communication protocol port of confession；The general driving provides all purpose communication association to communicate between the first equipment and standard USB device
View, the communication protocol port includes at least：It is used for transmission the port of audio, video data and is used for transmission the port of manipulation signal；
Second equipment is preset with the first USB interface, and second equipment accesses the 2nd USB of local terminal by first USB interface
Interface, and provide some communication protocol ports that can be identified by the general driving of the first equipment by first USB interface；
The first equipment is display source device in the present embodiment, and display source device refers to the equipment as display source；Second
Equipment is display device；The USB interface A of display device is with showing that the USB interface B of source device is docked；The category of the USB interface B
Property is USB host, and the attribute of USB interface A is USB device.
Step S22, the picture and/or audio of the first device plays are intercepted and captured；
In the present embodiment, intercept and capture and show that the picture of source device broadcasting and/or the mode of audio can be：Set by running display
The program of standby middle storage realizes that corresponding, the communication protocol port further includes：For accessing the port of memory space.Specifically
Such as：Show that source device generates memory space access instruction according to user's operation, the access instruction is fitted to for accessing
The port of memory space, and sent by USB interface B to the USB interface A of display device, deposited with accessing the default of display device
Store up space, and the program of the default memory space is run to intercept and capture the picture and/or sound that local terminal plays by its system interface
Frequently.Thus, without installing corresponding program in advance in display source device, plug and play is realized, is provided users with the convenient.
Step S23, the audio, video data intercepted is sent to described second by the designated port of secondary USB interface and set
The first standby USB interface, the designated port are adapted with being used for transmission the port of audio, video data；
Preferably, source device is shown before audio, video data is sent, and also the display can be run by its system interface
The audio, video data intercepted is compressed the corresponding program of the default memory space of equipment and/or coded treatment, with convenient
Transmission.
Step S24, the information of the first USB interface from second equipment is received, the port of the information is transmitted in detection；
If the port for being used for transmission manipulation signal, then the information is identified as manipulation signal, and it is corresponding to perform the manipulation signal
Action.
It should be noted that the execution sequence of above-mentioned steps S23 and S24 are not limited to said sequence, two-part execution is suitable
Sequence interchangeable, or can also perform at the same time.
Preferably, show that the user at source device end may choose whether to open the function of manipulation signal return, if user selects
The function of manipulation signal return is opened, then shows source device after connection is successfully established, can be by its USB interface B to display
Equipment sends passback request；Corresponding, the communication protocol port further includes：It is used for transmission the port of passback request.Specific side
Formula is for example：Obtain and show the default passback request flag information of source device, determine to show according to passback request flag information
Whether the passback request function of source device is opening；If so, generation passback request instruction；The passback request instruction is fitted
The port for being used for transmission passback request is fitted on, is sent by USB interface B to the USB interface A of display device, to notify display to set
It is standby to return the manipulation signal of its audio and/or picture to broadcasting.
Fig. 5 is the detail flowchart of the method for realizing wired biography screen of second embodiment；With reference to figure 5, display source device needs
The step of execution, is as follows：
S201, operation show the universal driver of source device, detect whether to meet setting feature in system background
USB device (i.e. display device) accesses；
Whether the USB device that access can be identified by specific ID (PID and/or VID) is that the display for meeting setting feature is set
It is standby.
S202, if so, being then confirmed whether there is the successful connection instruction for receiving display device transmission；
In the present embodiment, show that the general driving of source device detects that USB interface B receives the USB from display device
The port of the information is transmitted in the information of interface A, detection, then can according to signal content if the port for being used for transmission link information
Identify whether the information is successful connection instruction.
S203, if receiving, intercepts the currently playing picture of display source device and/or audio, through overcompression or
Person is encoded into particular file format, and the USB interface B by showing source device is sent to connected display device；
Preferably, show that source device can generate memory space access instruction according to user's operation, be supplied to from display device
Show the port for being obtained in the port of source device and being used for accessing memory space, the access instruction is fitted to described for accessing
The port of memory space, is sent to the USB interface A of display device by USB interface B, to access the default storage of display device
Space；And played by showing the program of the source device system interface operation default memory space with intercepting and capturing display source device
Picture and/or audio.Thus, show that source device without installing corresponding program in advance, realizes plug and play, provides to the user
Convenience.
The corresponding program for the default memory space that display device can also be run by showing source device system interface regards sound
Frequency is according to being compressed and/or encoding, in order to transmit.Interception code is storable in the USB flash disk of display device simulation, is being shown
Source device can be checked by corresponding communication protocol port and be stored in display device memory after display device is accessed
Data message, by show source device system interface run relative program with intercept and capture display source device play picture and/or
Audio (including voice data, further include the audios such as volume, sound channel and adjust information).
S204, confirm show source device passback request function switch whether open (user may be selected beat on or off
Close)；
In the present embodiment, after successful connection, it can show that the default passback request flag of source device is believed by reading
Breath, whether the passback request function for determining display source device is opening.
S205, if opening, by passback request instruction by showing that the USB interface B of source device is sent to display device；
If showing, the current passback request function of source device is opening, and request instruction is returned according to generation；By described in
Passback request instruction is fitted to the port for being used for transmission passback request, and the USB interface B by showing source device, which is sent to display, to be set
Standby USB interface A.
S206, detection show whether the USB interface B of source device receives the manipulation letter of the USB interface A passbacks of display device
Number；
S207, if receiving the manipulation signal of display device passback, performs corresponding response action.
In the present embodiment, the USB interface B by showing source device receives the information of the USB interface A from display device,
The port of the information is transmitted in detection, then can be according to the conventional external HID device of processing if the port for being used for transmission manipulation signal
The mode of manipulation event, identifies the manipulation signal of passback, and performs the corresponding action of the manipulation signal.
It is understood that step S204 and S205, the execution sequence of step S206~S207 are not limited to example in figure,
Step S206~S207 can be first carried out, then performs step S204 and S205；Or two parts are according between the time each set
Performed every parallel.
Wired screen transmission method of the present embodiment, by the way that display device is modeled to standard USB device, passes through display device
USB interface provides required some communication protocol ports for display source device, to establish having for display source device and display device
Line passes screen connection；The requirement to showing source device is reduced, realizes plug and play, and set without the extra middle screen that passes
It is standby, show the biography screen displaying that source device and display device only need a USB connecting line to realize audio, video data, at the same time also
It can realize the passback of display device manipulation signal, simplify the wiring for passing screen display, reduce to terminal block difficulty.
By the method for realizing wired biography screen of above-described embodiment, display device can be modeled to some by its USB interface
The USB device of type, special driving identification can be exempted from by being provided with the display source device of general driving.Show that source device can also be from aobvious
Show that equipment obtains the data flow of manipulation signal, the code for intercepting and capturing audio, video data can be the system interface of display source device, still
Corresponding routine data can be stored in the memory of display device, prestored in the memory of display device and be useful for data
Communication and the routine data or Program download for intercepting and capturing display source device audio, video data.In display source device and display device
Establish after USB connections, may have access to the memory of display device, to run wherein corresponding routine data, for showing source
The picture or audio of equipment are intercepted and captured.Show that source device can also be by running corresponding program data therein by audio and video number
According to the protocol packing according to agreement, display device is then sent to by corresponding communication protocol port, display device is from USB interface
A receives data packet, analysis protocol and bag content, and decoding audio, video data plays out.
The software at display device end can also obtain user to the picture of broadcasting either audio touch operation (or other
Manipulate signal), display source device is returned to by USB interface A.Show that source device can be according to corresponding communication protocol port identification
The touch operation signal come is transmitted through, the similar manipulation event of corresponding HID device is converted into and performs corresponding response (this
A process is that the operating system for showing source device supports that WINDOWS/MAC has this function), it is achieved in setting display source
The standby picture played and/or audio synchronize the effect of adjusting.
It should be noted that for foregoing each method embodiment, describe, it is all expressed as a series of for simplicity
Combination of actions, but those skilled in the art should know, the present invention and from the limitation of described sequence of movement, because according to
According to the present invention, some steps can use other orders or be carried out at the same time.
It is wired the present invention also provides realizing based on the thought identical with the method for realizing wired biography screen in above-described embodiment
The apparatus and system of screen is passed, apparatus and system can be used for performing the above-mentioned method for realizing wired biography screen.For convenience of description, realize
In the structure diagram of the apparatus and system embodiment of wired biography screen, illustrate only with the relevant part of the embodiment of the present invention,
It will be understood by those skilled in the art that schematic structure does not form the restriction to apparatus and system, can include more more than illustrating
Or less component, either combine some components or different components arrangement.
Fig. 6 is the schematic diagram of the device for realizing wired biography screen of one embodiment of the invention, as shown in fig. 6, this reality
The device for realizing wired biography screen for applying example can be some functional block in the display devices such as large-size screen monitors blank, it is specifically included：Port
Analog module 510, connection establishment module 520, audio, video data receiving module 530 and manipulation signal return module 540, each mould
Details are as follows for block：
The port analog module 510, it is some logical for being provided by default first USB interface of local terminal to the first equipment
Believe protocol port, the communication protocol port can be identified by the general driving of the first equipment；The general driving provides
The common communication protocol to communicate between one equipment and standard USB device, the communication protocol port include at least：It is used for transmission sound
The port of video data and the port for being used for transmission manipulation signal；
The connection establishment module 520, for the first USB interface by the communication protocol port, the second equipment with
And first equipment secondary USB interface, the usb communication for establishing the second equipment with first equipment is connected；
The audio, video data receiving module 530, for detecting that the first USB interface has the information from the first equipment,
The port of the information is transmitted in detection, if the port for being used for transmission audio, video data, then the information is identified as audio, video data；
The audio, video data received according to the first USB interface, in the corresponding audio and video of the second device plays；
As a preferred embodiment, which is identified as audio, video data by the audio, video data receiving module 530
Afterwards, if the default Trig control signal for being used to indicate biography screen displaying is listened to, according to the audio, video data in local terminal
Play corresponding audio and video.The Trig control signal includes the operation signal that the default control button of local terminal is pressed, and also may be used
To be that the specific touch that occurs manipulates signal on human-computer interaction interface that local terminal provides, i.e., user can by hardware trigger mode/
Software triggering mode, to control displaying of the local terminal to audio, video data, facilitates user flexibility control to pass the effect of screen displaying.
The manipulation signal return module 540, the manipulation signal detected for obtaining the second equipment, the manipulation is believed
The port for being used for transmission manipulation signal number is fitted to, and is sent to the first equipment, instruction described first and set by the first USB interface
Standby performed after the manipulation signal is received manipulates that signal is corresponding to be acted with described.
Preferably, the communication protocol port further includes：It is used for transmission the port of link information；Corresponding, described reality
The device that existing line passes screen further includes：Connection confirms module (not shown), for generating successful connection instruction, by the company
It is connected into work(instruction and is fitted to the port for being used for transmission link information, and sent by the first USB interface to the first equipment, informs
The second equipment meets the requirement that audio video transmission is shown described in first equipment.
Preferably, the communication protocol port further includes：It is used for transmission the port of passback request；Corresponding, described reality
The device that existing line passes screen further includes passback request module (not shown), for detecting that the first USB interface has from the
The port of the information is transmitted in the information of one equipment, detection, if the port for being used for transmission passback request, then opens the second equipment use
In the function of obtaining the manipulation signal to the first equipment detected.
Preferably, the communication protocol port further includes：For accessing the port of memory space；Corresponding, described reality
The device that existing line passes screen further includes memory module 550, for detecting that the first USB interface has the information from the first equipment,
The port of the information is transmitted in detection, if the port for accessing memory space, then by the default memory space exhibition of the second equipment
Showing to the first equipment, makes the first device systems interface be used to intercept and capture the first device plays by running the program of the memory space
Picture and/or audio.
In the present embodiment, the first equipment is display source device, and the second equipment is display device；The USB interface of second equipment
Attribute be USB device, the attribute of the USB interface of the first equipment is USB host.
Fig. 7 is the schematic diagram of the device for realizing wired biography screen of second embodiment.As shown in fig. 7, the present embodiment
The device for realizing wired biography screen include：
USB identification modules 610, the secondary USB interface for general driving identification the first equipment of access by pre-installation
The second equipment provide communication protocol port, the general driving provides to communicate between the first equipment and standard USB device
Common communication protocol, the communication protocol port includes at least：It is used for transmission the port of audio, video data and is used for transmission behaviour
Control the port of signal；Second equipment is preset with the first USB interface, and second equipment is connect by first USB interface
Enter local terminal secondary USB interface, and provided and some can be identified by the general driving of the first equipment by first USB interface
Communication protocol port；
Audio and video interception module 620, for intercepting and capturing the picture and/or audio of the first device plays；
Audio and video sending module 630, for the audio, video data intercepted to be sent out by the designated port of secondary USB interface
Send to the first USB interface of second equipment, the designated port is adapted with being used for transmission the port of audio, video data.
And manipulation signal receiving module 640, for receiving the information of the first USB interface from second equipment,
The port of the information is transmitted in detection；If the port for being used for transmission manipulation signal, then the information is identified as manipulation signal, performed
It is described to manipulate the corresponding action of signal.
Preferably, the communication protocol port further includes：For accessing the port of memory space；Corresponding, the sound regards
Frequency interception module 620：Specifically for being fitted to the access instruction of generation for accessing the port of memory space, and pass through second
USB interface is sent to the first USB interface of second equipment, to access the default memory space of second equipment, and is led to
Cross the first device systems interface and run the program of the default memory space to intercept and capture the picture of the first device plays and/or sound
Frequently.
Preferably, the communication protocol port further includes：It is used for transmission the port of passback request；Corresponding, described reality
The device that existing line passes screen further includes：Request module (not shown) is returned, please for obtaining the default passback of the first equipment
Flag information is sought, determines whether the passback request function of the first equipment is opening according to passback request flag information；
If so, generation passback request instruction；The passback request instruction is fitted to the port for being used for transmission passback request, and passes through the
Two USB interfaces are sent to the first USB interface of second equipment, with open the second equipment be used for obtain detect to first
The function of the manipulation signal of equipment.
In the present embodiment, the first equipment is display source device, and the second equipment is display device；The USB interface of second equipment
Attribute be USB device, the attribute of the USB interface of the first equipment is USB host.
It should be noted that in the embodiment of the device for realizing wired biography screen of above-mentioned example, between each module/unit
Information exchange, the content such as implementation procedure, due to being based on same design, its technology brought with preceding method embodiment of the present invention
Effect is identical with preceding method embodiment of the present invention, and particular content can be found in the narration in the method for the present invention embodiment, herein not
Repeat again.
In addition, in the embodiment of the device for realizing wired biography screen of above-mentioned example, the logical partitioning of each function module is only
It is the realization of the configuration requirement or software for example, can be as needed in practical application, such as corresponding hardware
It is convenient to consider, above-mentioned function distribution is completed by different function modules, described will realize the inside of the device of wired biography screen
Structure is divided into different function modules, to complete all or part of function described above.Wherein each function mould both can be with
Realized, can also be realized in the form of software function module in the form of hardware.
It will appreciated by the skilled person that realizing all or part of flow in above-described embodiment method, being can
To instruct relevant hardware to complete by computer program, the program can be stored in a computer-readable storage and be situated between
In matter, as independent production marketing or use.Described program upon execution, can perform the complete of such as embodiment of above-mentioned each method
Portion or part steps.Wherein, the storage medium can be magnetic disc, CD, read-only memory (Read-Only
Memory, ROM) or random access memory (Random Access Memory, RAM) etc..
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiments.It is appreciated that wherein used term " first ", " second " etc. are at this
It is used to distinguish object in text, but these objects should not be limited by these terms.
Embodiment described above only expresses the several embodiments of the present invention, it is impossible to is interpreted as to the scope of the claims of the present invention
Limitation.It should be pointed out that for those of ordinary skill in the art, without departing from the inventive concept of the premise,
Various modifications and improvements can be made, these belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention
It should be determined by the appended claims.
Claims (22)
- A kind of 1. method for realizing wired biography screen, it is characterised in that including：By default first USB interface of local terminal some communication protocol ports, the communication protocol port are provided to the first equipment It can be identified by the general driving of the first equipment；The general driving provides to communicate between the first equipment and standard USB device Common communication protocol；The communication protocol port includes at least：It is used for transmission the port of audio, video data and is used for transmission behaviour Control the port of signal；Establish local terminal by the communication protocol port, first USB interface and be connected with the usb communication of the first equipment；Detecting the first USB interface has the information from the first equipment, and the port of the information is transmitted in detection, if being used for transmission sound The port of video data, then be identified as audio, video data by the information；It is corresponding in local terminal broadcasting according to the audio, video data Audio and video；The manipulation signal to the first equipment that detects of local terminal is obtained, by the manipulation signal adaptation to being used for transmission manipulation signal Port, and sent by the first USB interface to the first equipment, indicate first equipment after the manipulation signal is received Perform and manipulate that signal is corresponding acts with described.
- 2. the method according to claim 1 for realizing wired biography screen, it is characterised in that also wrap the communication protocol port Include：It is used for transmission the port of link information；Established by the communication protocol port, first USB interface after local terminal is connected with the usb communication of the first equipment also Including：Successful connection instruction is generated, successful connection instruction is fitted to and is used for transmission the port of link information, and passes through the One USB interface is sent to the first equipment.
- 3. the method according to claim 1 for realizing wired biography screen, it is characterised in that also wrap the communication protocol port Include：It is used for transmission the port of passback request；Detect that the first USB interface has the information from the first equipment, detection to be further included after transmitting the port of the information：If the port for being used for transmission passback request, then the information is identified as passback request instruction, opens local terminal and be used to obtain The function of the manipulation signal to the first equipment detected.
- 4. the method according to claim 1 for realizing wired biography screen, it is characterised in that also wrap the communication protocol port Include：For accessing the port of memory space；Detect that the first USB interface has the information from the first equipment, detection to be further included after transmitting the port of the information：If the port for accessing memory space, then the information is identified as memory space access instruction；By the default of local terminal Memory space shows the first equipment so that the system interface of the first equipment is used to cut by running the program of the memory space The picture and/or audio for device plays of winning the first place.
- 5. the method according to any one of claims 1 to 4 for realizing wired biography screen, it is characterised in that the first equipment is display Source device, local terminal are display device；The attribute of first USB interface is USB device, and the attribute of secondary USB interface is USB host.
- 6. the method according to claim 1 for realizing wired biography screen, it is characterised in that the information is identified as audio and video number According to further including afterwards：The audio, video data is decompressed and/or is solved volume processing.
- 7. the method according to claim 1 for realizing wired biography screen, it is characterised in that the type bag of the manipulation signal Include：Touch control signal or infrared remote-controlled signal.
- 8. the method according to any one of claims 1 to 7 for realizing wired biography screen, it is characterised in that described according to the sound Video data includes the step of local terminal plays corresponding audio and video：If listening to the default Trig control signal for being used to indicate biography screen displaying, broadcast according to the audio, video data in local terminal Put corresponding audio and video.
- A kind of 9. method for realizing wired biography screen, it is characterised in that including：The communication protocol port provided by the second equipment of the general driving identification access local terminal secondary USB interface of pre-installation, The general driving provides the common communication protocol to communicate between local terminal and standard USB device, and the communication protocol port is extremely Include less：It is used for transmission the port of audio, video data and is used for transmission the port of manipulation signal；Second equipment is preset with One USB interface, second equipment accesses local terminal secondary USB interface by first USB interface, and passes through described first USB interface provides some communication protocol ports that can be identified by the general driving of the first equipment；Intercept and capture picture and/or the audio that local terminal plays；The audio, video data intercepted is sent to first USB interface, institute by the designated port of local terminal secondary USB interface State designated port and be adapted with being used for transmission the port of audio, video data；The information of the first USB interface from second equipment is received, the port of the information is transmitted in detection；If being used for transmission The port of signal is manipulated, then the information is identified as manipulation signal, and it is corresponding with the manipulation event signal to perform local terminal Action.
- 10. the method according to claim 9 for realizing wired biography screen, it is characterised in that also wrap the communication protocol port Include：For accessing the port of memory space；The step of intercepting and capturing picture and/or the audio that local terminal plays includes：The access instruction of generation is fitted to the port for accessing memory space, is sent by local terminal secondary USB interface to institute The first USB interface of the second equipment is stated, to access the default memory space of second equipment, and is transported by local terminal system interface The program of the row default memory space is to intercept and capture the picture and/or audio of local terminal broadcasting.
- 11. the method according to claim 9 for realizing wired biography screen, it is characterised in that also wrap the communication protocol port Include：It is used for transmission the port of passback request；The communication protocol port provided by the second equipment of the general driving of pre-installation identification access local terminal secondary USB interface it After further include：The default passback request flag information of local terminal is obtained, determines that the passback of local terminal is asked according to passback request flag information Whether function is opening；If so, generation passback request instruction；The passback request instruction is fitted to the port for being used for transmission passback request, and is sent by local terminal secondary USB interface To the first USB interface of second equipment.
- 12. the method according to claim 10 for realizing wired biography screen, it is characterised in that the audio, video data that will be intercepted It is fitted to before being used for transmission the port of audio, video data and further includes：The correspondence program that the default memory space is run by local terminal system interface presses the audio, video data intercepted Contracting and/or coded treatment.
- 13. according to any method for realizing wired biography screen of claim 9 to 12, it is characterised in that local terminal is display source Equipment；Second equipment is display device；The attribute of first USB interface is USB device, and the attribute of secondary USB interface is USB host.
- A kind of 14. device for realizing wired biography screen, it is characterised in that including：Port analog module, some communication protocol ports are provided by default first USB interface of local terminal to the first equipment, described Communication protocol port can be identified by the general driving of the first equipment；The general driving provides the first equipment and standard USB The common communication protocol of communication between devices, the communication protocol port include at least：It is used for transmission the port of audio, video data With the port for being used for transmission manipulation signal；Connection establishment module, for establishing local terminal and the first equipment by the communication protocol port, first USB interface Usb communication connects；Audio, video data receiving module, for detecting that the first USB interface has the information from the first equipment, the letter is transmitted in detection The port of breath, if the port for being used for transmission audio, video data, is then identified as audio, video data by the information；According to the first USB The audio, video data that interface arrives, corresponding audio and video are played in local terminal；Manipulate signal return module, the manipulation signal to the first equipment detected for obtaining local terminal, by the manipulation signal It is fitted to the port for being used for transmission manipulation signal, and is sent by the first USB interface of local terminal to the first equipment, instruction described the One equipment performs after the manipulation signal is received manipulates that signal is corresponding acts with described.
- 15. the device according to claim 14 for realizing wired biography screen, it is characterised in that also wrap the communication protocol port Include：It is used for transmission the port of link information；The device for realizing wired biography screen further includes:Connection confirms module, for generating successful connection instruction, successful connection instruction is fitted to and is used for transmission connection letter The port of breath, and sent by the first USB interface of local terminal to the first equipment.
- 16. the device according to claim 14 for realizing wired biography screen, it is characterised in that also wrap the communication protocol port Include：It is used for transmission the port of passback request；The device for realizing wired biography screen further includes：Request receiving module is returned, the first USB interface for detecting local terminal has the information from the first equipment, detection transmission The port of the information；If be used for transmission passback request port, then open local terminal be used for obtain detect to the first equipment Manipulation signal function.
- 17. the device according to claim 14 for realizing wired biography screen, it is characterised in that also wrap the communication protocol port Include：For accessing the port of memory space；The device for realizing wired biography screen further includes：The memory module, for detecting that the first USB interface has the information from the first equipment, the end of the information is transmitted in detection Mouthful；If the port for accessing memory space, then the default memory space of local terminal is showed into the first equipment, make the first equipment The picture and/or audio that system interface intercepts and captures the first device plays by running the program of the memory space to be used for.
- 18. according to any device for realizing wired biography screen of claim 14 to 17, it is characterised in that the first equipment is aobvious Show source device, local terminal is display device；The attribute of first USB interface is USB device, and the attribute of secondary USB interface is USB host.
- A kind of 19. device for realizing wired biography screen, it is characterised in that including：USB identification modules, the second equipment for the general driving identification access local terminal secondary USB interface by pre-installation provide Communication protocol port, the general driving provides the common communication protocol to communicate between local terminal and standard USB device, described Communication protocol port includes at least：It is used for transmission the port of audio, video data and is used for transmission the port of manipulation signal；Described Two equipment are preset with the first USB interface, and second equipment accesses local terminal secondary USB interface by first USB interface, and Some communication protocol ports that can be identified by the general driving of the first equipment are provided by first USB interface；Audio and video interception module, for intercepting and capturing the picture and/or audio of local terminal broadcasting；Audio and video sending module, for the audio, video data intercepted to be sent by the designated port of local terminal secondary USB interface To the first USB interface of second equipment, the designated port is adapted with being used for transmission the port of audio, video data；Signal receiving module is manipulated, for receiving the information of the first USB interface from second equipment, the letter is transmitted in detection The port of breath；If the port for being used for transmission manipulation signal, then the information is identified as manipulation signal, and makes local terminal execution and institute Manipulation event signal is stated to act accordingly.
- 20. the device according to claim 19 for realizing wired biography screen, it is characterised in that also wrap the communication protocol port Include：For accessing the port of memory space；The audio and video interception module：For being fitted to the access instruction of generation for accessing the port of memory space, and lead to Cross local terminal secondary USB interface to send to the first USB interface of second equipment, to access the default storage of second equipment Space, and the program of the default memory space is run to intercept and capture the picture and/or sound that local terminal plays by local terminal system interface Frequently.
- 21. the device according to claim 19 for realizing wired biography screen, it is characterised in that also wrap the communication protocol port Include：It is used for transmission the port of passback request；The device for realizing wired biography screen further includes：Request module is returned, for obtaining the default passback request flag information of local terminal, flag information is asked according to passback Whether the passback request function for determining local terminal is opening；If so, generation passback request instruction；By the passback request instruction The port for being used for transmission passback request is fitted to, and is sent by local terminal secondary USB interface to the first USB of second equipment Interface.
- 22. according to any device for realizing wired biography screen of claim 19 to 21, it is characterised in that local terminal is display source Equipment, the second equipment are display device；The attribute of first USB interface is USB device, and the attribute of secondary USB interface is USB host.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110911331.0A CN113965799B (en) | 2016-10-12 | 2016-11-21 | Method and device for realizing wired screen transmission |
| PCT/CN2017/103471 WO2018090723A1 (en) | 2016-10-12 | 2017-09-26 | Method and apparatus for realizing wired screen delivery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016108902686 | 2016-10-12 | ||
| CN201610890268 | 2016-10-12 |
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| CN202110911331.0A Division CN113965799B (en) | 2016-10-12 | 2016-11-21 | Method and device for realizing wired screen transmission |
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| CN107948568A true CN107948568A (en) | 2018-04-20 |
| CN107948568B CN107948568B (en) | 2021-08-31 |
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| CN202110911331.0A Active CN113965799B (en) | 2016-10-12 | 2016-11-21 | Method and device for realizing wired screen transmission |
| CN201611043054.1A Active CN107948568B (en) | 2016-10-12 | 2016-11-21 | Method and device for realizing wired screen transmission |
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| WO (1) | WO2018090723A1 (en) |
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| CN111629239B (en) * | 2020-04-29 | 2022-01-25 | 腾讯科技（深圳）有限公司 | Screen projection processing method, device, equipment and computer readable storage medium |
| CN111857889A (en) * | 2020-07-17 | 2020-10-30 | 联想(北京)有限公司 | Display data processing method and electronic equipment |
| CN111857889B (en) * | 2020-07-17 | 2021-11-16 | 联想(北京)有限公司 | Display data processing method and electronic equipment |
| CN113365118A (en) * | 2021-05-24 | 2021-09-07 | 杭州楷知科技有限公司 | Intelligent terminal peripheral operation method, device and system based on large-screen intelligent equipment |
| CN114489548A (en) * | 2022-01-30 | 2022-05-13 | 深圳创维－Rgb电子有限公司 | Information sharing method and device, screen projector and computer readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107948568B (en) | 2021-08-31 |
| CN113965799B (en) | 2024-03-29 |
| WO2018090723A1 (en) | 2018-05-24 |
| CN113965799A (en) | 2022-01-21 |
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