CN102857805A - Method and device for processing signals of mobile terminal - Google Patents
Method and device for processing signals of mobile terminal Download PDFInfo
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- CN102857805A CN102857805A CN2012103464600A CN201210346460A CN102857805A CN 102857805 A CN102857805 A CN 102857805A CN 2012103464600 A CN2012103464600 A CN 2012103464600A CN 201210346460 A CN201210346460 A CN 201210346460A CN 102857805 A CN102857805 A CN 102857805A
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Abstract
An embodiment of the invention discloses a method and a device for processing signals of a mobile terminal. The method and the device are used for solving the problems of image display delaying and sound distortion when the mobile terminal is controlled by vehicle-mounted equipment. The method includes receiving audio and video signals sent by a high-definition multimedia interface (HDMI) or mobile high-definition link (MHL) of the mobile terminal; converting the audio and video signals and inputting the same to an audio and video input interface of the vehicle-mounted equipment which is subjected to wireless broadband WIFI(wireless fidelity) connection with the mobile terminal, playing the converted audio and video signals on the vehicle-mounted equipment, and controlling the mobile terminal by the vehicle-mounted equipment according to played audio and video.
Description
Technical field
The present invention relates to the data transmission technology between vehicle-mounted and portable terminal, especially relate to a kind of processing method and device of mobile terminal signal.
Background technology
MirrorLink unites a kind of " car networking " standard of initiating foundation by some international well-known cell phone manufacturers and automaker, its objective is and allow the various portable terminals such as smart mobile phone, panel computer, e-book can both pass through this standard, convenient and promptly with the interconnected use of vehicle-mounted information and entertainment system, directly experience for the user provides the simplest.
Portable terminal can pass through USB (USB, Universal Serial BUS), bluetooth or WiMAX WIFI (wireless fidelity), can connect with mobile unit.For example: if the user wants to control mobile phone in vehicle traveling process, adopt the MirrorLink technology, the user can see the mobile phone screen, touch mobile phone screen or operating handset button, only need to control mobile phone with the physical button on the mobile unit or voice command, comprise the answer/make phone, listen mobile phone music, use Mobile Telephone Gps etc.
When but inventor's present mobile unit of discovery in the process that realizes the embodiment of the invention utilizes MirrorLink technology control portable terminal (such as mobile phone), for example: when mobile phone sends to mobile unit by WIFI with handset image, general per second can only transmit about three frames to mobile unit, can't solve the excessively slow problem of frame speed, the situation of display delay therefore can occur; Voice (such as music) are through the problem of the transmission meeting appearance effect distortion of bluetooth, poor user experience in addition.
Summary of the invention
The embodiment of the invention provides a kind of processing and device of mobile terminal signal, the problem of image display delay and audio distortions when being used for solving mobile unit control portable terminal.
In view of this, the present invention provides respectively:
A kind of processing method of mobile terminal signal comprises:
The audio-video signal that mobile terminal receive HDMI (High Definition Multimedia Interface) HDMI or portable terminal high-definition audio and video standard interface MHL send;
With the conversion of described audio-video signal and input to the audio frequency and video input interface of setting up the mobile unit that WiMAX WIFI is connected with described portable terminal, so that the audio-video signal after the conversion is play at described mobile unit, described mobile unit is controlled portable terminal according to the audio frequency and video of playing.
Preferably, the audio-video signal after the described conversion is play at described mobile unit and is comprised:
Vision signal after the conversion shows at the screen of described mobile unit, and the audio signal after the conversion is play at the sound equipment of described mobile unit.
Preferably, described mobile unit is controlled portable terminal according to the audio frequency and video of playing and is comprised:
Mobile unit receives the touch signal on the screen;
Mobile unit is according to the sound of playing on the video image that shows on the mobile unit screen and the sound equipment, and mobile unit is converted to corresponding portable terminal touch operation with described touch signal, so that portable terminal is carried out described touch operation.
Further, described method also comprises:
Mobile unit is broadcasted connectivity request message by WIFI;
Mobile unit obtains the connection response message corresponding with described connectivity request message, connects to set up WIFI with the described portable terminal that is connected response message of transmission.
The present invention also provides a kind of processing unit of mobile terminal signal, comprising:
Receiver module is used for the audio-video signal that mobile terminal receive HDMI (High Definition Multimedia Interface) HDMI or portable terminal high-definition audio and video standard interface MHL send;
The conversion and control module, be used for the audio-video signal conversion that described receiver module is received and input to the audio frequency and video input interface of setting up the mobile unit that WiMAX WIFI is connected with described portable terminal, so that the audio-video signal after the conversion is play at described mobile unit, described mobile unit is controlled portable terminal according to the audio frequency and video of playing.
Preferably, described conversion and control module, concrete be used for the audio-video signal conversion that described receiver module is received and input to the audio frequency and video input interface of setting up the mobile unit that WIFI is connected with described portable terminal, so that the vision signal after the conversion shows at the screen of described mobile unit, audio signal after the conversion is play at the sound equipment of described mobile unit, and described mobile unit is controlled portable terminal according to the audio frequency and video of playing.
Preferably, described conversion and control module, concrete be used for the audio-video signal conversion that described receiver module is received and input to the audio frequency and video input interface of setting up the mobile unit that WIFI is connected with described portable terminal, so that the vision signal after the conversion shows at the screen of described mobile unit, audio signal after the conversion is play at the sound equipment of described mobile unit, mobile unit receives the touch signal on the screen, mobile unit is according to the sound of playing on the video image that shows on the mobile unit screen and the sound equipment, mobile unit is converted to corresponding portable terminal touch operation with described touch signal, so that portable terminal is carried out described touch operation.
As can be seen from the above technical solutions, the processing method of a kind of mobile terminal signal that the embodiment of the invention provides and device, the audio-video signal of portable terminal HDMI interface or the transmission of MHL interface is converted to the Audio and Video input of mobile unit, utilize fan-out capability and the characteristics of HDMI and MHL interface, solved the problem of the delay of mobile unit show image and audio distortions; And, utilize WIFI communication between portable terminal and the mobile unit, mobile unit transmission screen is controlled with key command and is come operating mobile terminal, mobile unit can accurately be known viewing area size and the position of portable terminal, thereby can accurately screen taps be mapped to portable terminal, and it is carried out control operation.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the below will describe to embodiment the simply introduction of accompanying drawing do of required use, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The process flow figure of a kind of mobile terminal signal that Fig. 1 provides for the embodiment of the invention;
Another flow chart of processing method of a kind of mobile terminal signal that Fig. 2 provides for the embodiment of the invention;
The processing unit structural representation of a kind of mobile terminal signal that Fig. 3 provides for the embodiment of the invention.
Embodiment
The embodiment of the invention provides a kind of processing method and device of mobile terminal signal, the problem of image display delay and audio distortions when being used for solving mobile unit control portable terminal.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making all other embodiment that obtain under the creative work prerequisite.
Below be elaborated respectively.
Please refer to Fig. 1, the process flow figure of a kind of mobile terminal signal that Fig. 1 provides for the embodiment of the invention, wherein, the method comprises:
The audio-video signal that step 101, mobile terminal receive HDMI (High Definition Multimedia Interface) HDMI or portable terminal high-definition audio and video standard interface MHL send;
Wherein, HDMI (High Definition Multimedia Interface) HDMI (English full name: be a kind of digitized video/audio interface technology High Definition Multimedia Interface), it is the tailored version digital interface that is fit to image transmission, it can transmit audio frequency and video-audio signal simultaneously, the maximum data transmission speed is 5Gbps, need not simultaneously to transmit advance capable D/A or mould/number conversion at signal; Portable terminal high-definition audio and video standard interface MHL (English full name: Mobile High-Definition Link), it is a kind of audio-visual standard interface that connects portable consumer electronic device, MHL only uses a bars cable, can be presented on the HDTV (High-Definition Television) by standard HDMI input interface.It has used existing Micro USB interface, no matter be mobile phone, digital camera, digital camera and portable media player, all can directly be transferred to complete media content on the TV and do not damage the high-resolution effect of film, and the MHL interface can be transferred to the vision signal in the portable terminal and audio signal on the external connection display equipment simultaneously, do not need through any setting.
Wherein, the audio frequency and video input interface comprises the AV interface, the AV interface claims again RCA (English full name: Radio Corporation of American) interface, for example: present some vehicle GPS (global positioning systems, English full name: Global Positioning System) equipment, by self-contained sound, video terminal, connect the AV circuit with the data image sound etc. of self, output on other demonstration and the audio-visual equipment, such as external-connection displayer or earphone etc., interface mainly contains the AV composite terminal, S-VIDEO terminal, earphone interface etc.Be understandable that, the AV interface is that Audio and Video has been carried out separated transmission, thereby has avoided interfering with each other of Voice ﹠ Video, thereby is also referred to as audio frequency and video separated transmission interface; Simultaneously, the audio frequency and video input interface also comprises VGA (English full name: Video Graphics Array) interface and RGB (English full name: Red Green Blue, RGB) interface, VGA interface and rgb interface mainly are to process vision signal, it all has the advantages such as resolution is high, demonstration speed is fast, color is abundant, is widely used in the color monitor field.
From the above, the processing method of a kind of mobile terminal signal that the embodiment of the invention provides, the audio-video signal of portable terminal HDMI interface or the transmission of MHL interface is converted to the Audio and Video input of mobile unit, utilize fan-out capability and the characteristics of HDMI and MHL interface itself, solved the problem of the delay of mobile unit show image and audio distortions, so that mobile unit can accurately be known viewing area size and the position of portable terminal, thereby can accurately screen taps be mapped to portable terminal, and it is carried out control operation.
Please refer to Fig. 2, another flow chart of processing method of a kind of mobile terminal signal that Fig. 2 provides for the embodiment of the invention, wherein, the method comprises:
Step 201, mobile unit are broadcasted connectivity request message by WIFI;
Step 202, mobile unit obtain the connection response message corresponding with described connectivity request message, connect to set up WIFI with the described portable terminal that is connected response message of transmission;
By step 201 and step 202 as can be known, mobile unit has been opened the WIFI function, and portable terminal has also been opened the WIFI function, and an equipment in mobile unit and the portable terminal is by providing the focus pattern to allow another equipment add the WIFI local area network (LAN); In some embodiments, serve end program of running of mobile terminal, be used for Network finding and intercept, and accept the control command that mobile unit sends, client-side program of mobile unit operation, broadcast connectivity request message by WIFI when starting, carry out automatically searching of server, obtain the connection response message corresponding with described connectivity request message, namely find behind the portable terminal serve end program from the portable terminal that is dynamically connected, automatically open the audio frequency and video input channel (such as the AV passage) of mobile unit thereafter.
Need to prove, in embodiment of the invention networking mode, can be with third party's portable terminal or the mobile router focus that charges, can provide equally WIFI communication to be connected automatically searching of portable terminal with mobile unit and to be connected, do not do concrete restriction herein.
Be understandable that, mobile unit can be by WIFI to the portable terminal sending controling instruction, and described mobile unit can be in-vehicle navigation apparatus, and described portable terminal can be smart mobile phone, panel computer, e-book etc., does not do concrete restriction herein.
Step 203, portable terminal send audio-video signal by HDMI interface or MHL interface;
Wherein, the HDMI interface of portable terminal can transmit audio frequency and video-audio signal simultaneously, transmission speed is fast, the MHL interface can be transferred to the vision signal in the portable terminal and audio signal on the external connection display equipment simultaneously, and can directly be transferred to complete media content on the TV and do not damage the high-resolution effect of film;
Described portable terminal is sent to hardware module (processing unit of mobile terminal signal) with described audio-video signal and changes, and converts the Voice ﹠ Video input of mobile unit to.
Be understandable that, step 201 and step 203 can be carried out simultaneously, also can first execution in step 201, step 202, and execution in step 203 again, do not do concrete restriction herein.
Mobile unit audio frequency and video input interface is changed and be input to the processing unit of step 204, mobile terminal signal to the audio-video signal that described portable terminal is sended over;
The audio frequency and video input interface of step 205, mobile unit receives the audio-video signal through conversion;
Step 206, mobile unit are play the audio frequency and video on the portable terminal;
By step 204, step 205 and step 206 are as can be known, after the audio-video signal that the processing unit of mobile terminal signal sends over described portable terminal is changed, owing to having opened the audio frequency and video input channel of mobile unit in the step 202, show on the screen that the image that this moment, mobile unit can be come portable terminal by the output of HDMI interface or MHL interface and sound switch to mobile unit and the sound equipment and broadcast, namely the vision signal after the conversion shows at the screen of described mobile unit, audio signal after the conversion is play at the sound equipment of described mobile unit, wherein, the audio frequency and video input interface on the mobile unit comprises the AV interface of main audio signal, main VGA interface and the rgb interface of processing vision signal.
In embodiments of the present invention, utilize just fan-out capability and the characteristics of portable terminal HDMI and MHL interface itself, solved portable terminal image display delay to the mobile unit, and the problem of portable terminal sound distortion when mobile unit is play.
Step 207, mobile unit are controlled portable terminal according to the audio frequency and video of playing;
After the step 206, mobile unit can receive the touch signal on the screen; Mobile unit is according to the sound of playing on the video image that shows on the mobile unit screen and the sound equipment, and mobile unit is converted to corresponding portable terminal touch operation with described touch signal, so that portable terminal is carried out described touch operation.
For example, mobile unit is controlled portable terminal according to the video image that shows on the mobile unit screen, can be that mobile unit carries out coordinate transformation and corresponding convergent-divergent according to the size that shows on the screen and position, the touch operation in effective display area territory on the screen is converted to touch event corresponding to portable terminal, and connect the serve end program send to portable terminal by WIFI, the serve end program of portable terminal with its input equipment that is transmitted to portable terminal (such as touch-screen, hard button etc.), so that the screen display relevant position of portable terminal, portable terminal is carried out corresponding actions so that the user can operate mobile unit control; What easily expect in addition is, simultaneously mobile unit can routing direction dish button and the User Defined key-press event to portable terminal, to carry out accordingly by key control, wherein, the User Defined key-press event can be returning homepage button home, return upper level back button in the Android android mobile phone, main menu menu button etc.
From the above, the processing method of a kind of mobile terminal signal that the embodiment of the invention provides, the audio-video signal of portable terminal HDMI interface or the transmission of MHL interface is converted to the Audio and Video input of mobile unit, utilize fan-out capability and the characteristics of HDMI and MHL interface, solved the problem of the delay of mobile unit show image and audio distortions; Use automatic locating function between portable terminal and the vehicle mounted guidance, do not need input to finish automatically to search and be connected; And, utilize WIFI communication between portable terminal and the mobile unit, mobile unit transmission screen is controlled with key command and is come operating mobile terminal, mobile unit can accurately be known viewing area size and the position of portable terminal, thereby can accurately screen taps be mapped to portable terminal, and it is carried out control operation, Effective Raise the networked capabilities of onboard system, promoted the progress of vehicle entertainment system.What easily expect in addition is, the operational order of WIFI transmits the inconsistency that can effectively avoid different platform and equipment, can support android and the IOS system equipment of main flow, and the scope of application is extensive, has market prospects.
For ease of better implementing the technical scheme of the embodiment of the invention, the embodiment of the invention also is provided for implementing the relevant apparatus of said method.Wherein identical in the implication of noun and the said method, the explanation of specific implementation details in can reference method embodiment.
Please refer to Fig. 3, the processing unit of a kind of mobile terminal signal that Fig. 3 provides for the embodiment of the invention, wherein, this device comprises:
Conversion and control module 302, be used for the audio-video signal conversion that described receiver module 301 is received and input to the audio frequency and video input interface of setting up the mobile unit that WiMAX WIFI is connected with described portable terminal, so that the audio-video signal after the conversion is play at described mobile unit, described mobile unit is controlled portable terminal according to the audio frequency and video of playing.
From the above, the processing unit of a kind of mobile terminal signal that the embodiment of the invention provides, the audio-video signal of portable terminal HDMI interface or the transmission of MHL interface is converted to the Audio and Video input of mobile unit, utilize fan-out capability and the characteristics of HDMI and MHL interface itself, solved the problem of the delay of mobile unit show image and audio distortions, so that mobile unit can accurately be known viewing area size and the position of portable terminal, thereby can accurately screen taps be mapped to portable terminal, and it is carried out control operation.
Further, described conversion and control module 302, concrete be used for the audio-video signal conversion that described receiver module 301 is received and input to the audio frequency and video input interface of setting up the mobile unit that WIFI is connected with described portable terminal, so that the vision signal after the conversion shows at the screen of described mobile unit, audio signal after the conversion is play at the sound equipment of described mobile unit, and described mobile unit is controlled portable terminal according to the audio frequency and video of playing.
Further, described conversion and control module 302, concrete be used for the audio-video signal conversion that described receiver module 301 is received and input to the audio frequency and video input interface of setting up the mobile unit that WIFI is connected with described portable terminal, so that the vision signal after the conversion shows at the screen of described mobile unit, audio signal after the conversion is play at the sound equipment of described mobile unit, mobile unit receives the touch signal on the screen, mobile unit is according to the sound of playing on the video image that shows on the mobile unit screen and the sound equipment, mobile unit is converted to corresponding portable terminal touch operation with described touch signal, so that portable terminal is carried out described touch operation.
Be understandable that, mobile unit is broadcasted connectivity request message by WIFI; Mobile unit obtains the connection response message corresponding with described connectivity request message, connects to set up WIFI with the described portable terminal that is connected response message of transmission; Be to use automatic locating function between portable terminal and the mobile unit, do not need input to finish automatically to search and be connected; Use WIFI communication between portable terminal and the mobile unit, the transmission screen is controlled with key command and is come operating mobile terminal; Mobile unit can be known viewing area size and the position of portable terminal, can accurately screen taps be mapped to portable terminal, so that operating process.
From the above, the processing unit of a kind of mobile terminal signal that the embodiment of the invention provides, the audio-video signal of portable terminal HDMI interface or the transmission of MHL interface is converted to the Audio and Video input of mobile unit, utilize fan-out capability and the characteristics of HDMI and MHL interface, solved the problem of the delay of mobile unit show image and audio distortions; Use automatic locating function between portable terminal and the vehicle mounted guidance, do not need input to finish automatically to search and be connected; And, utilize WIFI communication between portable terminal and the mobile unit, mobile unit transmission screen is controlled with key command and is come operating mobile terminal, mobile unit can accurately be known viewing area size and the position of portable terminal, thereby can accurately screen taps be mapped to portable terminal, and it is carried out control operation, Effective Raise the networked capabilities of onboard system, promoted the progress of vehicle entertainment system.What easily expect in addition is, the operational order of WIFI transmits the inconsistency that can effectively avoid different platform and equipment, can support android and the IOS system equipment of main flow, and the scope of application is extensive, has market prospects.
Be understandable that, in the processing unit of the mobile terminal signal that the embodiment of the invention provides, the function of its each functional module can be according to the method specific implementation among the said method embodiment, and its specific implementation process can with reference to the associated description of said method embodiment, repeat no more herein.
The those skilled in the art can be well understood to, and is the convenience described and succinct, and the specific works process of the unit module in the system of foregoing description, device and the device can with reference to the corresponding process among the preceding method embodiment, not repeat them here.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out all or part of step of the described method of each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), the various media that can be program code stored such as random access memory (RAM, Random Access Memory), magnetic disc or CD.
Above processing method and device to a kind of mobile terminal signal provided by the present invention is described in detail, for one of ordinary skill in the art, thought according to the embodiment of the invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (7)
1. the processing method of a mobile terminal signal is characterized in that, comprising:
The audio-video signal that mobile terminal receive HDMI (High Definition Multimedia Interface) HDMI or portable terminal high-definition audio and video standard interface MHL send;
With the conversion of described audio-video signal and input to the audio frequency and video input interface of setting up the mobile unit that WiMAX WIFI is connected with described portable terminal, so that the audio-video signal after the conversion is play at described mobile unit, described mobile unit is controlled portable terminal according to the audio frequency and video of playing.
2. method according to claim 1 is characterized in that, the audio-video signal after the described conversion is play at described mobile unit and comprised:
Vision signal after the conversion shows at the screen of described mobile unit, and the audio signal after the conversion is play at the sound equipment of described mobile unit.
3. method according to claim 2 is characterized in that, described mobile unit is controlled portable terminal according to the audio frequency and video of playing and comprised:
Mobile unit receives the touch signal on the screen;
Mobile unit is according to the sound of playing on the video image that shows on the mobile unit screen and the sound equipment, and mobile unit is converted to corresponding portable terminal touch operation with described touch signal, so that portable terminal is carried out described touch operation.
4. according to claim 1 to 3 each described methods, it is characterized in that, described method also comprises:
Mobile unit is broadcasted connectivity request message by WIFI;
Mobile unit obtains the connection response message corresponding with described connectivity request message, connects to set up WIFI with the described portable terminal that is connected response message of transmission.
5. the processing unit of a mobile terminal signal is characterized in that, comprising:
Receiver module is used for the audio-video signal that mobile terminal receive HDMI (High Definition Multimedia Interface) HDMI or portable terminal high-definition audio and video standard interface MHL send;
The conversion and control module, be used for the audio-video signal conversion that described receiver module is received and input to the audio frequency and video input interface of setting up the mobile unit that WiMAX WIFI is connected with described portable terminal, so that the audio-video signal after the conversion is play at described mobile unit, described mobile unit is controlled portable terminal according to the audio frequency and video of playing.
6. device according to claim 5 is characterized in that,
Described conversion and control module, concrete be used for the audio-video signal conversion that described receiver module is received and input to the audio frequency and video input interface of setting up the mobile unit that WIFI is connected with described portable terminal, so that the vision signal after the conversion shows at the screen of described mobile unit, audio signal after the conversion is play at the sound equipment of described mobile unit, and described mobile unit is controlled portable terminal according to the audio frequency and video of playing.
7. device according to claim 6 is characterized in that,
Described conversion and control module, concrete be used for the audio-video signal conversion that described receiver module is received and input to the audio frequency and video input interface of setting up the mobile unit that WIFI is connected with described portable terminal, so that the vision signal after the conversion shows at the screen of described mobile unit, audio signal after the conversion is play at the sound equipment of described mobile unit, mobile unit receives the touch signal on the screen, mobile unit is according to the sound of playing on the video image that shows on the mobile unit screen and the sound equipment, mobile unit is converted to corresponding portable terminal touch operation with described touch signal, so that portable terminal is carried out described touch operation.
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