CN106412538A - Screen projection device and method - Google Patents
Screen projection device and method Download PDFInfo
- Publication number
- CN106412538A CN106412538A CN201610866704.6A CN201610866704A CN106412538A CN 106412538 A CN106412538 A CN 106412538A CN 201610866704 A CN201610866704 A CN 201610866704A CN 106412538 A CN106412538 A CN 106412538A
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- China
- Prior art keywords
- projection
- projector equipment
- screen prjection
- terminal
- automatically
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
Abstract
The invention discloses a screen projection device and method. The device comprises a pre-execution module for pre-executing a projection operation to a target stage before receiving a projection instruction; and a continuous execution module for continuously executing the projection operation starting from the next stage of the target stage when receiving the projection instruction. Through the adoption of the screen projection device disclosed by the invention, a part of projection operation is executed in advance before the user issues the projection instruction, a terminal only needs to continuously execute the rest partial projection operation when the user issues the projection instruction, and the time for executing partial projection operation is saved; therefore, the device can fast enter the data transmission stage to start the screen projection, the projection starting time is greatly shortened, the waiting time of the user is reduced, and the user experience is improved.
Description
Technical field
The present invention relates to communication technical field, more particularly, to a kind of screen prjection apparatus and method.
Background technology
Wireless Fidelity shows that (WiFi Display, WFD) technology is that one kind enables the transmitting terminals such as smart mobile phone, notebook
Enough technology being wirelessly connected with receiving terminals such as TV, display.During carrying out screen prjection by WFD, transmitting terminal incite somebody to action this
The screen image of machine as the receiving terminal that is sent to of data for projection persistence, the reception data for projection of receiving terminal also persistence, and
The screen image of transmitting terminal is reproduced on the screen of the machine.
When user needs to carry out screen prjection, need first to start screen prjection application, then issue projection instruction, terminal connects
Start to execute projection operation after receiving projection instruction.Wherein, whole projection operation at least need experience the projector equipment search phase,
Link connection establishment stage, session connection establishment stage data transmission stage four-stage.Only when entrance data transfer rank
Duan Houcai really starts screen prjection, and user just can watch the screen image of projection, and in above three phases implementation procedure
In, user can only wait.
However, projector equipment search, link connection set up and session connection to set up three phases generally ratio relatively time-consuming, thus
Delay projection starting time so that user needs to wait as long for, have a strong impact on Consumer's Experience.
Content of the invention
Present invention is primarily targeted at proposing a kind of apparatus and method it is intended to solution projection starting time is longer leads to use
The technical problem that family needs wait as long for.
For achieving the above object, the present invention proposes a kind of screen prjection device, and described device includes：
Pre-execution module, for, before receiving projection instruction, pre-execution projection operation is to the target phase；
Continue executing with module, for when receiving described projection instruction, opening from the next stage of described target phase
Begin to continue executing with described projection operation.
Further, the described target phase is that projector equipment search phase, link connection establishment stage or session connection are built
The vertical stage.
Further, when the described target phase being session connection establishment stage, described pre-execution module is used for：Automatically search
Rope projector equipment, automatically sets up link connection with the projector equipment searching, automatically sets up session connection with described projector equipment,
And maintain described session connection.
Further, the described module that continues executing with is used for：Data transfer phase is entered according to described projection instruction, with target
Projector equipment carries out data for projection transmission.
Further, described pre-execution module is automatically set up link connection with the projector equipment searching and is specially：Judge
Whether described projector equipment has specific identifier；When there being specific identifier, automatically built by preset key with described projector equipment
Vertical link connection.
The present invention proposes a kind of screen prjection method simultaneously, the method comprising the steps of：
Before receiving projection instruction, pre-execution projection operation is to the target phase；
When receiving described projection instruction, start to continue executing with described projection from the next stage of described target phase
Operation.
Further, the described target phase is that projector equipment search phase, link connection establishment stage or session connection are built
The vertical stage.
Further, when the described target phase being session connection establishment stage, described pre-execution projection operation is to target
Stage includes：
Automatically search projector equipment；
Automatically set up link connection with the projector equipment searching；
Automatically set up session connection with described projector equipment, and maintain described session connection.
Further, described start to continue executing with described projection operation from the next stage of described target phase include：
Data transfer phase is entered according to described projection instruction, carries out data for projection transmission with target projection equipment.
Further, described automatically set up link connection with the projector equipment searching and include：
Judge whether described projector equipment has specific identifier；
When there being specific identifier, automatically with described projector equipment, link connection is set up by preset key.
A kind of screen prjection method proposed by the invention, first carries out one in advance by before issuing projection instruction in user
Divide projection operation, when user issues projection instruction, terminal only need to continue executing with remaining part projection operation, saves
The time of executable portion projection operation, therefore can rapidly enter data transfer phase and start screen prjection, substantially reduce throwing
Shadow starting time, decreases the waiting time of user, improves Consumer's Experience.
Brief description
Fig. 1 is the hardware architecture diagram realizing the optional mobile terminal of each embodiment of the present invention one；
Fig. 2 is the wireless communication system schematic diagram of mobile terminal as shown in Figure 1；
Fig. 3 is the flow chart of the screen prjection method of first embodiment of the invention；
Fig. 4 is the flow chart of the screen prjection method of second embodiment of the invention；
Fig. 5 is the flow chart of the screen prjection method of third embodiment of the invention；
Fig. 6 is the flow chart of the screen prjection method of fourth embodiment of the invention；
Fig. 7 is the module diagram of the screen prjection device of fifth embodiment of the invention.
The realization of the object of the invention, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
It should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Realize the mobile terminal of each embodiment of the present invention referring now to Description of Drawings.In follow-up description, use
For represent element such as " module ", " part " or " unit " suffix only for being conducive to the explanation of the present invention, itself
Not specific meaning.Therefore, " module " and " part " can mixedly use.
Mobile terminal can be implemented in a variety of manners.For example, the terminal described in the present invention can include such as moving
Phone, smart phone, notebook computer, digit broadcasting receiver, PDA (personal digital assistant), PAD (panel computer), PMP
The mobile terminal of (portable media player), guider etc. and such as numeral TV, desk computer etc. consolidate
Determine terminal.Hereinafter it is assumed that terminal is mobile terminal.However, it will be understood by those skilled in the art that, except being used in particular for moving
Outside the element of purpose, construction according to the embodiment of the present invention can also apply to the terminal of fixed type.
Fig. 1 is that the hardware configuration of an optional mobile terminal realizing each embodiment of the present invention is illustrated.
Mobile terminal 1 00 can include wireless communication unit 110, A/V (audio/video) input block 120, user input
Unit 130, sensing unit 140, output unit 150, memorizer 160, interface unit 170, controller 180 and power subsystem 190
Etc..Fig. 1 shows the mobile terminal with various assemblies, it should be understood that being not required for implementing all groups illustrating
Part.More or less of assembly can alternatively be implemented.Will be discussed in more detail below the element of mobile terminal.
Wireless communication unit 110 generally includes one or more assemblies, and it allows mobile terminal 1 00 and wireless communication system
Or the radio communication between network.For example, wireless communication unit can include broadcasting reception module 111, mobile communication module
112nd, at least one of wireless Internet module 113, short range communication module 114 and location information module 115.
Broadcasting reception module 111 receives broadcast singal and/or broadcast via broadcast channel from external broadcast management server
Relevant information.Broadcast channel can include satellite channel and/or terrestrial channel.Broadcast management server can be generated and sent
The broadcast singal generating before the server of broadcast singal and/or broadcast related information or reception and/or broadcast related information
And send it to the server of terminal.Broadcast singal can include TV broadcast singal, radio signals, data broadcasting
Signal etc..And, broadcast singal may further include the broadcast singal combining with TV or radio signals.Broadcast phase
Pass information can also provide via mobile communications network, and in this case, broadcast related information can be by mobile communication mould
Block 112 is receiving.Broadcast singal can exist in a variety of manners, and for example, it can be with the electronics of DMB (DMB)
The form of program guide (EPG), the electronic service guidebooks (ESG) of digital video broadcast-handheld (DVB-H) etc. and exist.Broadcast
Receiver module 111 can be broadcasted by using various types of broadcast system receipt signals.Especially, broadcasting reception module 111
Can be wide by using such as multimedia broadcasting-ground (DMB-T), DMB-satellite (DMB-S), digital video
Broadcast-hand-held (DVB-H), forward link media (MediaFLO@) Radio Data System, received terrestrial digital broadcasting integrated service
Etc. (ISDB-T) digit broadcasting system receives digital broadcasting.Broadcasting reception module 111 may be constructed such that and is adapted to provide for extensively
Broadcast the various broadcast systems of signal and above-mentioned digit broadcasting system.Via broadcasting reception module 111 receive broadcast singal and/
Or broadcast related information can be stored in memorizer 160 (or other types of storage medium).
Mobile communication module 112 sends radio signals to base station (for example, access point, node B etc.), exterior terminal
And at least one of server and/or receive from it radio signal.Such radio signal can include voice and lead to
Words signal, video calling signal or the various types of data sending and/or receiving according to text and/or Multimedia Message.
Wireless Internet module 113 supports the Wi-Fi (Wireless Internet Access) of mobile terminal.This module can be internally or externally
It is couple to terminal.Wi-Fi (Wireless Internet Access) technology involved by this module can include WLAN (WLAN) (Wi-Fi), Wibro
(WiMAX), Wimax (worldwide interoperability for microwave accesses), HSDPA (high-speed downlink packet access) etc..
Short range communication module 114 is the module for supporting junction service.Some examples of short-range communication technology include indigo plant
ToothTM, RF identification (RFID), Infrared Data Association (IrDA), ultra broadband (UWB), purple honeybeeTMEtc..
Location information module 115 be for check or obtain mobile terminal positional information module.Location information module
Typical case be GPS (global positioning system).According to current technology, GPS module 115 calculates and is derived from three or more satellites
Range information and correct time information and for the Information application triangulation calculating, thus according to longitude, latitude
Highly accurately calculate three-dimensional current location information.Currently, the method for calculating position and temporal information is defended using three
Star and the error of the position that calculates by using other satellite correction and temporal information.Additionally, GPS module 115
Can be by Continuous plus current location information in real time come calculating speed information.
A/V input block 120 is used for receiving audio or video signal.A/V input block 120 can include camera 121 He
Mike 122, camera 121 is to the static images being obtained by image capture apparatus in Video Capture pattern or image capture mode
Or the view data of video is processed.Picture frame after process may be displayed on display module 151.Process through camera 121
Picture frame afterwards can be stored in memorizer 160 (or other storage medium) or carry out sending out via wireless communication unit 110
Send, two or more cameras 121 can be provided according to the construction of mobile terminal.Mike 122 can be in telephone calling model, note
Sound (voice data) is received via mike in record pattern, speech recognition mode etc. operational mode, and can be by so
Acoustic processing be voice data.Audio frequency (voice) data after process can be converted in the case of telephone calling model can
It is sent to the form output of mobile communication base station via mobile communication module 112.Mike 122 can implement various types of making an uproar
Sound eliminates (or suppression) algorithm to eliminate the noise that (or suppression) produces in reception with during sending audio signal or to do
Disturb.
User input unit 130 can generate key input data to control each of mobile terminal according to the order of user input
Plant operation.User input unit 130 allows the various types of information of user input, and can include keyboard, metal dome, touch
Plate (for example, detection due to touched and lead to resistance, pressure, the change of electric capacity etc. sensitive component), roller, rocking bar etc.
Deng.Especially, when touch pad is superimposed upon on display module 151 as a layer, touch screen can be formed.
Sensing unit 140 detect mobile terminal 1 00 current state, (for example, mobile terminal 1 00 open or close shape
State), the position of mobile terminal 1 00, user is for the presence or absence of the contact (that is, touch input) of mobile terminal 1 00, mobile terminal
100 orientation, the acceleration or deceleration movement of mobile terminal 1 00 and direction etc., and generate for controlling mobile terminal 1 00
The order of operation or signal.For example, when mobile terminal 1 00 is embodied as sliding-type mobile phone, sensing unit 140 can sense
This sliding-type phone opens or cuts out.In addition, sensing unit 140 can detect power subsystem 190 whether provide electric power or
Whether person's interface unit 170 is coupled with external device (ED).Interface unit 170 is used as at least one external device (ED) and mobile terminal 1 00
The interface that connection can be passed through.For example, external device (ED) can include wired or wireless head-band earphone port, external power source (or
Battery charger) port, wired or wireless FPDP, memory card port, for connect have identification module device end
Mouth, audio input/output (I/O) port, video i/o port, ear port etc..Identification module can be that storage is used for verifying
User using mobile terminal 1 00 various information and can include subscriber identification module (UIM), client identification module (SIM),
Universal Subscriber identification module (USIM) etc..In addition, the device (hereinafter referred to as " identifying device ") with identification module can be adopted
Take the form of smart card, therefore, identifying device can be connected with mobile terminal 1 00 via port or other attachment means.Interface
Unit 170 can be used for receiving from the input (for example, data message, electric power etc.) of external device (ED) and defeated by receive
Enter to be transferred to the one or more elements in mobile terminal 1 00 or can be used for transmission between mobile terminal and external device (ED)
Data.
In addition, when mobile terminal 1 00 is connected with external base, interface unit 170 can serve as allowing by it by electricity
Power provides the path of mobile terminal 1 00 from base or can serve as allowing the various command signals from base input to pass through it
It is transferred to the path of mobile terminal.May serve as identifying that mobile terminal is from the various command signals of base input or electric power
The no signal being accurately fitted within base.Output unit 150 is configured to defeated with the offer of vision, audio frequency and/or tactile manner
Go out signal (for example, audio signal, video signal, alarm signal, vibration signal etc.).Output unit 150 can include showing
Module 151, dio Output Modules 152, alarm modules 153 etc..
Display module 151 may be displayed on the information processing in mobile terminal 1 00.For example, when mobile terminal 1 00 is in electricity
During words call mode, display module 151 can show (for example, text messaging, the multimedia file that communicate with call or other
Download etc.) related user interface (UI) or graphic user interface (GUI).When mobile terminal 1 00 is in video calling pattern
Or during image capture mode, display module 151 can show the image of capture and/or the image of reception, illustrate video or figure
UI or GUI of picture and correlation function etc..
Meanwhile, when display module 151 and the touch pad touch screen with formation superposed on one another as a layer, display module
151 can serve as input equipment and output device.Display module 151 can 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
A kind of.Some in these display may be constructed such that transparence to allow user from outside viewing, and 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
The embodiment wanted, mobile terminal 1 00 can include two or more display modules (or other display device), for example, moves
Dynamic terminal can include outside display module (not shown) and internal display module (not shown).Touch screen can be used for detection and touches
Input pressure and touch input position and touch input area.
Dio Output Modules 152 can mobile terminal be in call signal reception pattern, call mode, logging mode,
When under the isotypes such as speech recognition mode, broadcast reception mode, that wireless communication unit 110 is received or in memorizer 160
The voice data transducing audio signal of middle storage and be output as sound.And, dio Output Modules 152 can provide and move
The audio output (for example, call signal receives sound, message sink sound etc.) of the specific function correlation of terminal 100 execution.
Dio Output Modules 152 can include speaker, buzzer etc..
Alarm modules 153 can provide output to notify event to mobile terminal 1 00.Typical event is permissible
Including calling reception, message sink, key signals input, touch input etc..In addition to audio or video output, alarm modules
153 can provide output in a different manner with the generation of notification event.For example, alarm modules 153 can be in the form of vibrating
Output is provided, enters when communicating (incomingcommunication) when receiving calling, message or some other, alarm mould
Block 153 can provide tactile output (that is, vibrating) to notify to user.By providing such tactile output, even if
When the mobile phone of user is in the pocket of user, user also can recognize that the generation of various events.Alarm modules 153
The output of the generation of notification event can be provided via display module 151 or dio Output Modules 152.
Memorizer 160 can store software program of the process being executed by controller 180 and control operation etc., or can
Temporarily to store oneself data (for example, telephone directory, message, still image, video etc.) through exporting or will export.And
And, memorizer 160 can be to store the vibration of various modes with regard to exporting and audio signal when touching and being applied to touch screen
Data.
Memorizer 160 can include the storage medium of at least one type, and described storage medium includes flash memory, hard disk, many
Media card, card-type memorizer (for example, SD or DX memorizer etc.), random access storage device (RAM), static random-access storage
Device (SRAM), read only memory (ROM), Electrically Erasable Read Only Memory (EEPROM), programmable read only memory
(PROM), magnetic storage, disk, CD etc..And, mobile terminal 1 00 can execute memorizer with by network connection
The network storage device cooperation of 160 store function.
Controller 180 generally controls the overall operation of mobile terminal.For example, controller 180 execution and voice call, data
The related control of communication, video calling etc. and process.In addition, controller 180 can be included for reproducing (or playback) many matchmakers
The multi-media module 181 of volume data, multi-media module 181 can construct in controller 180, or it is so structured that and controls
Device 180 separates.Controller 180 can be with execution pattern identifying processing, by the handwriting input executing on the touchscreen or picture
Draw input and be identified as character or image.
Power subsystem 190 receives external power or internal power under the control of controller 180 and provides operation each unit
Suitable electric power needed for part and assembly.
Various embodiment described herein can be with using such as computer software, hardware or its any combination of calculating
Machine computer-readable recording medium is implementing.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
Program gate array (FPGA), processor, controller, microcontroller, microprocessor, be designed to execute function described herein
At least one in electronic unit implementing, in some cases, can be implemented in controller 180 by such embodiment.
Software is implemented, the embodiment of such as process or function can with allow to execute the single of at least one function or operation
Software module is implementing.Software code can be come by the software application (or program) write with any suitable programming language
Implement, software code can be stored in memorizer 160 and be executed by controller 180.
So far, oneself is through describing mobile terminal according to its function.The present invention can be applied to such as folded form, board-type,
Various types of mobile terminal such as oscillating-type, sliding-type.
As shown in Figure 1 mobile terminal 1 00 may be constructed such that using via frame or packet transmission data all if any
Line and wireless communication system and satellite-based communication system are operating.
The communication system being wherein operable to according to the mobile terminal of the present invention referring now to Fig. 2 description.
Such communication system can use different air interfaces and/or physical layer.For example, used by communication system
Air interface includes such as frequency division multiple access (FDMA), time division multiple acess (TDMA), CDMA (CDMA) and universal mobile communications system
System (UMTS) (especially, Long Term Evolution (LTE)), global system for mobile communications (GSM) etc..As non-limiting example, under
The description in face is related to cdma communication system, but such teaching is equally applicable to other types of system.
With reference to Fig. 2, cdma wireless communication system can include multiple mobile terminal 1s 00, multiple base station (BS) 270, base station
Controller (BSC) 275 and mobile switching centre (MSC) 280.MSC280 is configured to and Public Switched Telephony Network (PSTN)
290 formation interfaces.MSC280 is also structured to and can form interface via the BSC275 that back haul link is couple to base station 270.
If back haul link can construct according to any one in the interface that Ganji knows, described interface includes such as E1/T1, ATM, IP,
PPP, frame relay, HDSL, ADSL or xDSL.It will be appreciated that system as shown in Figure 2 can include multiple BSC275.
Each BS270 can service one or more subregions (or region), by the sky of multidirectional antenna or sensing specific direction
Each subregion that line covers is radially away from BS270.Or, each subregion can by for diversity reception two or more
Antenna covers.Each BS270 may be constructed such that support multiple frequency distribution, and the distribution of each frequency has specific frequency spectrum
(for example, 1.25MHz, 5MHz etc.).
Intersecting that subregion and frequency are distributed can be referred to as CDMA Channel.BS270 can also be referred to as base station transceiver
System (BTS) or other equivalent terms.In this case, term " base station " can be used for broadly representing single
BSC275 and at least one BS270.Base station can also be referred to as " cellular station ".Or, each subregion of specific BS270 can be claimed
For multiple cellular stations.
As shown in Figure 2, broadcast singal is sent to the mobile terminal of operation in system by broadcsting transmitter (BT) 295
100.Broadcasting reception module 111 is arranged at mobile terminal 1 00 to receive the broadcast being sent by BT295 as shown in Figure 1
Signal.In fig. 2 it is shown that several global positioning system (GPS) satellites 300.Satellite 300 helps position multiple mobile terminals
At least one of 100.
In fig. 2, multiple satellites 300 are depicted, but it is to be understood that, it is possible to use any number of satellite obtains to be had
Location information.GPS module 115 is generally configured to coordinate with satellite 300 to obtain the positioning wanted as shown in Figure 1
Information.Substitute GPS tracking technique or outside GPS tracking technique, it is possible to use can follow the tracks of the position of mobile terminal its
Its technology.In addition, at least one gps satellite 300 can optionally or additionally process satellite dmb transmission.
As a typical operation of wireless communication system, BS270 receives the reverse link from various mobile terminal 1s 00
Signal.Mobile terminal 1 00 generally participates in call, information receiving and transmitting and other types of communication.Each of certain base station 270 reception is anti-
Processed in specific BS270 to link signal.The data obtaining is forwarded to the BSC275 of correlation.BSC provides call
Resource allocation and the mobile management function of including the coordination of soft switching process between BS270.BSC275 is also by the number receiving
According to being routed to MSC280, it provides the extra route service for forming interface with PSTN290.Similarly, PSTN290 with
MSC280 forms interface, and MSC and BSC275 form interface, and BSC275 correspondingly controls BS270 with by forward link signals
It is sent to mobile terminal 1 00.
Based on above-mentioned mobile terminal hardware configuration and communication system, the screen prjection method and apparatus proposing the present invention is each
Individual embodiment, the screen prjection method and apparatus of the present invention is applied to above-mentioned mobile terminal, particularly mobile phone.
The screen prjection method and apparatus of the embodiment of the present invention, refers mainly to the screen prjection method and apparatus based on WFD, when
Can also be so the screen prjection method and apparatus based on other screen prjection technology, the present invention is not construed as limiting to this, below leads
Taking WFD technology to be as a example described in detail.
In the embodiment of the present invention, when two terminals carry out screen prjection, one of terminal is transmitting terminal (Source),
For being sent out data for projection, another terminal is receiving terminal (Sink), for receiving data for projection and exporting.Alternatively,
Can also be that multiple terminals carry out screen prjection, one of terminal is transmitting terminal, remaining terminal is receiving terminal；Or, wherein
One terminal is receiving terminal, and remaining terminal is transmitting terminal.Aforementioned terminals can be the mobile terminals such as mobile phone, flat board or
The big screen equipment such as television set, display.
Embodiment one
As shown in figure 3, proposing the screen prjection method of first embodiment of the invention, the method comprising the steps of：
S11, receive projection instruction before, pre-execution projection operation is to the target phase.
As a example using terminal as transmitting terminal, whole projection operation includes the projector equipment search phase successively, link connection is built
Vertical stage, session connection establishment stage data transmission stage.In the embodiment of the present invention, appointing before receiving projection instruction
After meaning moment, such as starting up of terminal, after terminal startup screen prjection application etc., all can first carry out projection operation in advance to target rank
Section.
The described target phase could be arranged to projector equipment search phase, link connection establishment stage or session connection and sets up
Stage.For example, before receiving projection instruction, the operation of execution search projector equipment automatically.For another example, refer to receiving projection
Before order, execution automatically is searched for projector equipment and is set up link-attached operation.And for example, before receiving projection instruction, from
Dynamic execution is searched for projector equipment, is set up link connection and the operation setting up session connection.
S12, when receive projection instruction when, start to continue executing with projection operation from the next stage of target phase.
In this step S12, when terminal receives projection instruction, then from the next stage of the target phase going in advance
Start to continue executing with projection operation.
Alternatively, when the target phase is for the projector equipment search phase, terminal is then that link connection is built from the next stage
In the vertical stage, continue executing with projection operation, that is, execution is set up link connection, set up the behaviour of session connection and transmission data successively
Make.Thus saving the time of search projector equipment, data transfer phase can be rapidly entered and start screen prjection, shortening throwing
Shadow starting time.
Alternatively, when the target phase is for link connection establishment stage, terminal is then that session connection is built from the next stage
In the vertical stage, continue executing with projection operation, that is, the operation of session connection and transmission data is set up in execution successively.Thus saving
Search for projector equipment and set up the link-attached time, can more quickly enter data transfer phase and start screen prjection,
Further shorten projection starting time.
Alternatively, when the target phase is for session connection establishment stage, terminal is then data transfer rank from the next stage
Section starts, and continues executing with projection operation, directly transmits data for projection and starts screen prjection with projector equipment.Thus save searching
Rope projector equipment, set up link connection and the time setting up session connection, be directly entered data transfer phase and start screen and thrown
Shadow is so that projection starting time is almost nil.
Described projection instruction includes sending the projection instruction of data and the projection instruction of receiving data；Send out when terminal receives
When sending the projection of data to instruct, then send data for projection as transmitting terminal to receiving terminal；When terminal receives the throwing of receiving data
During shadow instruction, then the data for projection sending as receiving terminal receiving end/sending end, and received by screen and audible device output
Data for projection.
The screen prjection method of the embodiment of the present invention, first carries out part throwing in advance by before issuing projection instruction in user
Shadow operates, and when user issues projection instruction, terminal only need to continue executing with remaining part projection operation, saves execution
The time of part projection operation, therefore can rapidly enter data transfer phase and start screen prjection, substantially reduce projection and open
The dynamic time, decrease the waiting time of user, improve Consumer's Experience.
As shown in figure 4, proposing the screen prjection method of second embodiment of the invention, the method comprising the steps of：
S21, startup screen prjection application.
Alternatively, when user clicks on the icon of screen prjection application, terminal then starts screen prjection application.
S22, automatically search projector equipment.
In the present embodiment, after entering screen prjection application, terminal starts projection operation immediately, and pre-execution projection operation is extremely
The projector equipment search phase.
In this step S22, terminal is directly started with the identity of transmitting terminal (source) while entering screen prjection application
Point-to-point (peer-to-peer, p2p) searches for, and finds the equipment of support screen projection, as projector equipment.Alternatively,
When the equipment searching has the mark of support screen projection, then this equipment is identified as projector equipment.
After searching projector equipment, then user is waited to issue projection instruction.
S23, receive projection instruction.
Alternatively, terminal start screen prjection application after, display projection interface, projection interface on show transmission data with
The button of receiving data or pattern, when user clicks on and sends data, terminal then receives the projection instruction sending data.
S24 and target projection equipment set up link connection.
After terminal receives the projection instruction sending data, immediately available as transmitting terminal from the projector equipment search phase
One stage is that link connection establishment stage starts to continue executing with projection operation.
Specifically, terminal is listed the projector equipment searching and is supplied user's selection, and the projector equipment that user is selected is as mesh
Mark projector equipment, initiates to be connected with the p2p of target projection equipment, after the completion of p2p connects, then sets up link connection.
Alternatively, whether terminal judges target projection equipment has specific identifier, when there being specific identifier, then with target projection
Equipment sets up link connection by preset key.Thus eliminate the wps process in p2p standard connection procedure, it is to avoid logical
Spend the time spent by wps process exchange key, improve connection speed, further shorten the waiting time of user.
S25 and target projection equipment set up session connection.
Specifically, after terminal and target device establish link connection, initiate to spread in real time to target projection equipment immediately
The session connection of defeated agreement (Real Time Streaming Protocol, RTSP), thus setting up RTSP passage, for follow-up
Screen prjection is prepared.
S26, to target projection equipment send data for projection.
After session connection is successfully established, terminal starts screen prjection immediately, sends data for projection to target projection equipment,
Carry out streaming media playing.
The screen prjection method of the present embodiment, by searched in advance projector equipment, when user issues the projection sending data
During instruction, then directly start follow-up projection operation after selection target projector equipment from the projector equipment searching out, save and search
The time of rope projector equipment, data transfer phase can be rapidly entered and start screen prjection, thus shortening projection starting time,
Decrease period of reservation of number, improve Consumer's Experience.The present embodiment is primarily adapted for use in transmitting terminal.
Embodiment three
As shown in figure 5, proposing the screen prjection method of third embodiment of the invention, the method comprising the steps of：
S31, startup screen prjection application.
S32, automatically search projector equipment.
In the present embodiment, after entering screen prjection application, terminal starts projection operation immediately, and pre-execution projection operation is extremely
Link connection establishment stage.In this step S32, automatically search for projector equipment, the step in its process and second embodiment first
S22 is identical, will not be described here.
Link connection set up by S33, projector equipment that is automatic and searching.
In the present embodiment, after searching projector equipment, terminal sets up link with all projector equipments searching immediately
Connect, and keep this link connection, wait user to issue projection instruction.Alternatively, when user exits screen prjection application, then
Disconnecting link connects.
It is similar with step S24 in second embodiment that link-attached mode set up by this step S33 and projector equipment,
This repeats no more.
S34, receive projection instruction.
Alternatively, terminal start screen prjection application after, display projection interface, projection interface on show transmission data with
The button of receiving data or pattern.When user clicks on and sends data, terminal then receives the projection instruction sending data.When with
When receiving data is clicked at family, terminal then receives the projection instruction of receiving data.
S35 and target projection equipment set up session connection.
After terminal receives projection instruction, it is that session connection is built from the next stage of link connection establishment stage immediately
The vertical stage starts to continue executing with projection operation.
When the projection receiving receiving data instructs, then immediately the projector equipment initiating session connection is thrown as target
Shadow equipment, sets up RTSP session connection as receiving terminal and this target projection equipment.
When receiving the projection instruction sending data, then list and establish link-attached projector equipment for user's choosing
Select, the projector equipment that user is selected is as target projection equipment, and initiates session even as transmitting terminal to target projection equipment
Connect, complete the foundation of RTSP session connection.
Alternatively, for non-targeted projector equipment (not being chosen as other projector equipments of target projection equipment), eventually
End can be connected with their disconnecting links.It is of course also possible to maintenance link connection, or maintain link connection Preset Time, with
Standby user is subsequently selected.
S36 and target projection device transmission data for projection.
After session connection is successfully established, when terminal is as transmitting terminal, then starts screen prjection immediately, set to target projection
Preparation send data for projection, carries out streaming media playing.When terminal is as receiving terminal, then receive the projection that target projection equipment sends
Data, and the data for projection being received by screen and audible device output.
The screen prjection method of the present embodiment, sets up chain by searched in advance projector equipment and with the projector equipment searching
Road connects, when user issues projection instruction, then from the beginning of directly selecting after target projection equipment from the projector equipment searching out
Follow-up projection operation, saves search projector equipment and sets up the link-attached time, can rapidly enter data transfer phase
Start screen prjection, thus greatly shortening projection starting time, decreasing period of reservation of number, improving Consumer's Experience.
The present embodiment is not only suitable for transmitting terminal, is also applied for receiving terminal.
As shown in fig. 6, proposing the screen prjection method of fourth embodiment of the invention, the method comprising the steps of：
S41, startup screen prjection application.
S42, automatically search projector equipment.
In the present embodiment, after entering screen prjection application, terminal starts projection operation immediately, and pre-execution projection operation is extremely
Session connection establishment stage.In this step S42, automatically search for projector equipment, the step in its process and second embodiment first
S22 is identical, will not be described here.
Link connection set up by S43, projector equipment that is automatic and searching.
In the present embodiment, after searching projector equipment, terminal sets up link with all projector equipments searching immediately
Connect.It is similar with step S24 in second embodiment that link-attached mode set up by this step S43 and projector equipment, here
Repeat no more.
S44, automatically and session connection set up by projector equipment, and maintain session connection.
In the present embodiment, after setting up link connection with projector equipment, terminal initiates session to all projector equipments immediately
Connect, set up RTSP session connection with all projector equipments.
In normal screen prjection normal process, after session connection is successfully established, directly initiate screen prjection, flowed
Media play.In the present embodiment, after session connection is successfully established, then conversate maintenance, wouldn't start screen prjection, that is, temporarily
Do not carry out data for projection transmission, wait the projection instruction of user.
Alternatively, when user exits screen prjection application, then disconnect session connection.
S45, receive projection instruction.
Alternatively, terminal start screen prjection application after, display projection interface, projection interface on show transmission data with
The button of receiving data or pattern.When user clicks on and sends data, terminal then receives the projection instruction sending data.When with
When receiving data is clicked at family, terminal then receives the projection instruction of receiving data.
S46 and target projection device transmission data for projection.
After terminal receives projection instruction, it is data transfer rank from the next stage of session connection establishment stage immediately
Section starts to continue executing with projection operation.
When the projection receiving receiving data instructs, then immediately the projector equipment initiating data transfer is thrown as target
Shadow equipment, receives the data for projection of target projection equipment as receiving terminal, and is received by screen and audible device output
Data for projection.
When receiving the projection instruction sending data, then list the projector equipment establishing session connection for user's choosing
Select, the projector equipment that user is selected, as target projection equipment, starts screen prjection, immediately as transmitting terminal to target projection
Equipment sends data for projection, carries out streaming media playing.
Alternatively, for non-targeted projector equipment (not being chosen as other projector equipments of target projection equipment), eventually
End can be disconnected with them.It is of course also possible to maintain connect, or maintain connection Preset Time, subsequently selected with standby user
With.Here connection can be session connection or link connection.
The screen prjection method of the present embodiment, is set up by searched in advance projector equipment and with the projector equipment searching
Link connection and session connection, when user issues projection instruction, then after directly selecting target projection equipment from projector equipment
Carry out data transmission immediately starting screen prjection, save search projector equipment and set up link connection and session connection when
Between, immediately begin to screen prjection, projection starting time is almost nil, user just can watch projection with little need for waiting
Picture, is greatly improved Consumer's Experience.The present embodiment is not only suitable for transmitting terminal, is also applied for receiving terminal.
In aforementioned the second to fourth embodiment, terminal is to start pre-execution projection operation after screen prjection application starts,
In fact, terminal can start pre-execution operation in any time before receiving projection instruction, such as after starting up of terminal
Then start pre-execution projection operation etc., the invention is not limited in this regard.
Embodiment five
As shown in fig. 7, propose fifth embodiment of the invention screen prjection device, described device include pre-execution module and
Continue executing with module, wherein：
Pre-execution module：For, before receiving projection instruction, pre-execution projection operation is to the target phase.
Specifically, receiving any time before projection instruction, such as after starting up of terminal, terminal starts screen prjection should
With rear etc., pre-execution module all can first carry out projection operation to the target phase in advance.
The described target phase could be arranged to projector equipment search phase, link connection establishment stage or session connection and sets up
Stage.
For example, before receiving projection instruction, pre-execution module executes the operation of search projector equipment automatically.
For another example, before receiving projection instruction, pre-execution module automatically executes search projector equipment and sets up link even
The operation connecing.
And for example, pre-execution module before receiving projection instruction, search for projector equipment, set up link connection by execution automatically
With the operation setting up session connection.Specifically, pre-execution module searches for projector equipment first automatically, then automatically with search
Link connection set up by projector equipment, and session connection set up by finally automatic and projector equipment, and maintains this session connection.
Alternatively, when link connection set up by pre-execution module and projector equipment, first determine whether whether projector equipment has specific
Mark, when there being specific identifier, automatic and projector equipment sets up link connection by preset key.Thus, shorten foundation
The link-attached time.
Continue executing with module：For when receiving projection instruction, starting to continue to hold from the next stage of target phase
Row projection operation.
Alternatively, when the target phase is for the projector equipment search phase, continuing executing with module is then chain from the next stage
In the road connection establishment stage, continue executing with projection operation, that is, execution is set up link connection, sets up session connection and transmission successively
The operation of data.Thus saving the time of search projector equipment, data transfer phase can be rapidly entered and starts screen prjection,
Shorten projection starting time.
Alternatively, when the target phase is for link connection establishment stage, continue executing with module and then i.e. can from the next stage
In the words connection establishment stage, continue executing with projection operation, that is, the operation of session connection and transmission data is set up in execution successively.From
And save search projector equipment and set up the link-attached time, can more quickly enter data transfer phase and start to shield
Curtain projection, further shorten projection starting time.
Alternatively, when the target phase is for session connection establishment stage, continue executing with module and then count from the next stage
According to the transmission stage, continue executing with projection operation, that is,：Data transfer phase is entered according to projection instruction, sets with target projection
Standby carry out data for projection transmission.Thus saving search projector equipment, setting up link connection and the time setting up session connection, directly
Connect enter data transfer phase start screen prjection so that projection starting time almost nil.
Target projection equipment described in the embodiment of the present invention is it may be possible to the projector equipment of user's selection is it is also possible to actively send out
Play the projector equipment of link connection request or session connection request.
Described projection instruction includes sending the projection instruction of data and the projection instruction of receiving data；Send out when terminal receives
When sending the projection of data to instruct, then send data for projection as transmitting terminal to receiving terminal；When terminal receives the throwing of receiving data
During shadow instruction, then the data for projection sending as receiving terminal receiving end/sending end, and received by screen and audible device output
Data for projection.
The screen prjection device of the embodiment of the present invention, first carries out part throwing in advance by before issuing projection instruction in user
Shadow operates, and when user issues projection instruction, then only need to continue executing with remaining part projection operation, save enforcement division
Divide the time of projection operation, therefore can rapidly enter data transfer phase and start screen prjection, substantially reduce projection and start
Time, decrease the waiting time of user, improve Consumer's Experience.
The screen prjection device that above-described embodiment provides and screen prjection embodiment of the method belong to same design, and it is specifically real
The technical characteristic that existing process refers in embodiment of the method, and embodiment of the method is all corresponding applicable, here not in device embodiment
Repeat again.
It should be noted that herein, term " inclusion ", "comprising" or its any other variant are intended to non-row
The comprising of his property, so that including a series of process of key elements, method, article or device not only include those key elements, and
And also include other key elements of being not expressly set out, or also include intrinsic for this process, method, article or device institute
Key element.In the absence of more restrictions, the key element being limited by sentence "including a ..." is it is not excluded that including being somebody's turn to do
Also there is other identical element in the process of key element, method, article or device.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
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 the mode of software plus necessary general hardware platform naturally it is also possible to pass through hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme is substantially done to prior art in other words
Go out partly can embodying in the form of software product of contribution, this computer software product is stored in a storage medium
In (as ROM/RAM, magnetic disc, CD), including some instructions with so that a station terminal equipment (can be mobile phone, computer, clothes
Business device, air-conditioner, or network equipment etc.) method described in execution each embodiment of the present invention.
These are only the preferred embodiments of the present invention, not thereby limit the present invention the scope of the claims, every using this
Equivalent structure or equivalent flow conversion that bright description and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of screen prjection device is it is characterised in that include：
Pre-execution module, for, before receiving projection instruction, pre-execution projection operation is to the target phase；
Continue executing with module, for when receiving described projection instruction, starting to continue from the next stage of described target phase
The described projection operation of continuous execution.
2. screen prjection device according to claim 1 is it is characterised in that the described target phase is projector equipment search rank
Section, link connection establishment stage or session connection establishment stage.
3. screen prjection device according to claim 2 is it is characterised in that working as the described target phase is that session connection is set up
During the stage, described pre-execution module is used for：
Automatically search projector equipment, is automatically set up link connection with the projector equipment searching, is automatically built with described projector equipment
Vertical session connection, and maintain described session connection.
4. screen prjection device according to claim 3 is it is characterised in that the described module that continues executing with is used for：According to institute
State projection instruction and enter data transfer phase, carry out data for projection transmission with target projection equipment.
5. the screen prjection device according to any one of claim 1-4 it is characterised in that described pre-execution module automatically with
The projector equipment searching is set up link connection and is specially：
Judge whether described projector equipment has specific identifier；When there being specific identifier, automatically pass through preset with described projector equipment
Key set up link connection.
6. a kind of screen prjection method is it is characterised in that comprise the following steps：
Before receiving projection instruction, pre-execution projection operation is to the target phase；
When receiving described projection instruction, start to continue executing with described projection behaviour from the next stage of described target phase
Make.
7. screen prjection method according to claim 6 is it is characterised in that the described target phase is projector equipment search rank
Section, link connection establishment stage or session connection establishment stage.
8. screen prjection method according to claim 7 is it is characterised in that working as the described target phase is that session connection is set up
During the stage, described pre-execution projection operation included to the target phase：
Automatically search projector equipment；
Automatically set up link connection with the projector equipment searching；
Automatically set up session connection with described projector equipment, and maintain described session connection.
9. screen prjection method according to claim 8 is it is characterised in that the described next rank from the described target phase
Section starts to continue executing with described projection operation and includes：
Data transfer phase is entered according to described projection instruction, carries out data for projection transmission with target projection equipment.
10. the screen prjection method according to any one of claim 6-9 it is characterised in that described automatically with search
Projector equipment is set up link connection and is included：
Judge whether described projector equipment has specific identifier；
When there being specific identifier, automatically with described projector equipment, link connection is set up by preset key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610866704.6A CN106412538A (en) | 2016-09-29 | 2016-09-29 | Screen projection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610866704.6A CN106412538A (en) | 2016-09-29 | 2016-09-29 | Screen projection device and method |
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| CN106412538A true CN106412538A (en) | 2017-02-15 |
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| WO2021042612A1 (en) * | 2019-09-04 | 2021-03-11 | 深圳市乐得瑞科技有限公司 | Wireless screen projection method and apparatus, device and storage medium |
| CN114745423A (en) * | 2021-04-06 | 2022-07-12 | 上海亚筑文化科技有限公司 | Intelligent digital exhibition interactive experience system |
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Application publication date: 20170215 |