CN101848347B - Method for sharing CMMB video and mobile terminal providing sharing service - Google Patents
Method for sharing CMMB video and mobile terminal providing sharing service Download PDFInfo
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- CN101848347B CN101848347B CN200910119746.3A CN200910119746A CN101848347B CN 101848347 B CN101848347 B CN 101848347B CN 200910119746 A CN200910119746 A CN 200910119746A CN 101848347 B CN101848347 B CN 101848347B
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims description 3
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
- H04N7/17309—Transmission or handling of upstream communications
- H04N7/17318—Direct or substantially direct transmission and handling of requests
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234309—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4 or from Quicktime to Realvideo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
- H04N21/4788—Supplemental services, e.g. displaying phone caller identification, shopping application communicating with other users, e.g. chatting
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Engineering & Computer Science (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention relates to a method for sharing a CMMB (China Mobile Multimedia Broadcasting) video, which is applied between a first mobile terminal with a CMMB signal receiving module and a second mobile terminal without the CMMB signal receiving module. The method for sharing a CMMB video comprises the following steps of: sending a request for sharing a CMMB video to the first mobile terminal by the second mobile terminal; after receiving the request, recoding the signal of a playing CMMB video program into a general video mode suitable for the transmission of a mobile network and sending the modulated signal to the second mobile terminal by the first mobile terminal if the CMMB video program is played by the first mobile terminal right now; and receiving and playing the recoded CMMB signal by the second mobile terminal. By adopting the invention, a 3G (Three-Dimensional) mobile terminal without the CMMB signal receiving module can share the received CMMB signal through a 3G network with high bandwidth characteristics, and CMMB vide sharing is realized.
Description
Technical field
The present invention relates to field of mobile terminals, relate in particular to the method for a kind of shared CMMB (China MobileMultimedia Broadcasting, China Mobile multimedia broadcasting) video and the mobile terminal of this share service is provided.
Background technology
TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, TD SDMA) network, in eight Olympic Games city networking of China, also will start networking in other provincial capitals before at the end of Year 2008.TD-SCDMA is as the 3G standard of Chinese independent intellectual property right, can offer user's message transmission rate of the highest 384Kbps, can meet the demand of Online Video completely, and in conjunction with HSDPA (High Speed Downlink Packet Access, high speed downlink packet access) after, more can reach the message transmission rate of the highest 2.8Mbps, the video transmitting will become more apparent and also time delay less.And as 3G (3rd Generation, third generation digital communication) other two kinds of network WCDMA (Wideband-Code Division Multiple Access of standard, Wideband Code Division Multiple Access (WCDMA)) and CDMA2000 (Code Division Multiple Access2000, CDMA 2000) also started in a national line city networking, the maximum data transfer rate that can reach is respectively 14.4Mbps and 3.1Mbps, and it is all the fine utilization to large bandwidth that video telephone, Online Video and network are downloaded.
CMMB is General Bureau of Radio, Film and Television in order to meet current people and to watch the needs of TV whenever and wherever possible and the standard about mobile TV of promulgating, but user wants to watch CMMB TV programme, just need to be by means of the terminal that disposes CMMB signal receiving module.And there is no the terminal of CMMB signal receiving module for those, in prior art, also do not make them can share to the method for CMMB TV programme yet.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method of shared CMMB video and the mobile terminal of CMMB video share service is provided, and makes those terminals that do not configure CMMB signal receiving module also can share to CMMB video.
For addressing the above problem, the invention provides a kind of method of shared China Mobile multimedia broadcasting CMMB video, be applied to, between the first mobile terminal and the second mobile terminal without CMMB signal receiving module with CMMB signal receiving module, comprising:
Described the second mobile terminal sends the request of sharing CMMB video to described the first mobile terminal;
After described the first mobile terminal is received, if it is playing CMMB video frequency program, the signal of in progress this program is re-encoded as to video format general and applicable mobile network's transmission, and after ovennodulation, sends to described the second mobile terminal;
Described the second mobile terminal receives and plays the CMMB signal through recompile.
Further, said method also can have following characteristics:
Described video format general and applicable mobile network's transmission is 3GP form.
Further, said method also can have following characteristics:
Described the first mobile terminal refers in progress CMMB signal recompile: described the first mobile terminal judges whether described the second mobile terminal is its friendly user, if so, to described in progress CMMB signal recompile.
Further, said method also can have following characteristics:
If it is not its friendly user that described the first mobile terminal is judged described the second mobile terminal, described the first mobile terminal no longer carries out recompile, modulation and transmit operation to described in progress CMMB signal.
Further, said method also can have following characteristics:
If it is not its friendly user that described the first mobile terminal is judged described the second mobile terminal, also comprise:
The second mobile terminal described in described the first mobile terminal shielding.
Further, said method also can have following characteristics:
Described the first mobile terminal refers to the signal recompile of in progress program: described the first mobile terminal self arranges coding bit rate and resolution, and according to this coding bit rate and resolution, the signal of in progress program is carried out to recompile.
For addressing the above problem, the present invention also provides a kind of mobile terminal that China Mobile multimedia broadcasting CMMB video share service can be provided, and comprises CMMB signal receiving module, CMMB demodulation module, CMMB decoding process module, digital base band processor module, wireless radio frequency modules and signal transmitting and receiving module; Described CMMB signal receiving module is used for receiving CMMB signal, and described CMMB demodulation module is for carrying out demodulation to the CMMB signal receiving, filtering high-frequency signal; Described CMMB decoding process module is decoded for the signal that described CMMB demodulation module is demodulated; Wherein:
Described digital base band processor module is for receiving and share after screen request in described signal transmitting and receiving module, and the CMMB signal that described CMMB decoding process module is decoded carries out recompile, is encoded into video format general and applicable wireless network transmissions;
Described wireless radio frequency modules is for modulating the signal after recompile;
Described signal transmitting module, for receiving the shared video request that other is not sent with the mobile terminal of CMMB signal receiving module, also sends for the signal that described wireless radio frequency modules is modulated.
Further, above-mentioned mobile terminal also can have following characteristics:
Described video format general and applicable mobile network's transmission is 3GP form.
Adopt after the present invention, can make not configure the 3G mobile terminal of CMMB signal receiving module, by thering is the 3G network of high bandwidth characteristic, share its received CMMB signal, realized CMMB video and shared.Without the hardware frame that changes existing mobile terminal, only need to carry out function upgrading to mobile terminal software just can realize such function.The present invention is simple in structure, easy to use, has enriched the function of mobile terminal, takes full advantage of the high bandwidth characteristic of 3G network.
Accompanying drawing explanation
Fig. 1 is the mobile terminal internal frame diagram that CMMB video share service is provided in the embodiment of the present invention;
Fig. 2 shares the flow chart of CMMB video in the embodiment of the present invention.
Embodiment
Below in conjunction with drawings and Examples, technical scheme of the present invention is described in detail.
For convenience of description, the mobile terminal with CMMB signal receiving module is called to UE_A, the mobile terminal without CMMB signal receiving module is called to UE_B.Wherein, UE_A, after receiving CMMB signal, need to carry out just sending into player plays after demodulation code to this signal.The method of the invention comprises the steps:
Steps A: UE_B sends the request of sharing CMMB video to UE_A;
Step B:UE_A receives after this request, if it is playing CMMB video frequency program, the signal of in progress this program is re-encoded as to video format general and applicable mobile network's transmission, and after ovennodulation, sends to UE_B;
Step C:UE_B receives the CMMB signal through recompile by mobile network, sends into player and plays.
In step B, coding bit rate and resolution that UE_A adopts when CMMB signal is encoded can be arranged voluntarily by user, such as being encoded into high bit rate, high-resolution video can provide better picture quality for UE_B; The video that is encoded into low bit rate, low resolution can make the image of UE_B broadcasting more smooth.
In step B, UE_A carries out before recompile programme signal, can also first judge that whether UE_B is its friendly user, if so, carries out recompile to programme signal again; Otherwise,, for it provides CMMB video share service, further, can not shield this UE_B, in case again receive the follow-up sharing request to sending of this user.
As shown in Figure 1, in UE_A, include following module: CMMB signal receiving module 001, CMMB demodulation module 002, CMMB decoding process module 003, digital base band processor module 004, wireless radio frequency modules 005, signal transmitting and receiving module 006.
Wherein, CMMB signal receiving module 001 is for receiving CMMB signal, and CMMB demodulation module 002 carries out demodulation for the CMMB signal to receiving, filtering high-frequency signal, and the baseband signal demodulating is sent to CMMB decoding process module 003 and decodes; Digital base band processor module 004 for the shared video request of receiving other mobile terminal in signal transmitting and receiving module 006 and sending after, decoded CMMB signal is encoded, be encoded into video format general and applicable wireless network transmissions; Wireless radio frequency modules 005 is for the signal after recompile is modulated, and the shared video request that signal transmitting and receiving module 006 is sent for receiving other mobile terminal, also for sending the signal modulating.
With an application example of the present invention, the method for the invention is further described below.
As shown in Figure 2, the concrete operations flow process of shared CMMB video is as follows:
1, the UE_A that is playing CMMB program receives the shared video request from UE_B;
2, UE_A judges that whether UE_B is friendly user, if so, carries out next step; Otherwise, continue to play CMMB program, and can in software, arrange after shielding from all shared video request of UE_B, prevent the sharing request of malicious user UE_B;
3, UE_A starts in progress decoded CMMB signal to encode, and is encoded into a kind of video format general and applicable wireless network transmissions, the 3GP form of all supporting such as present most mobile terminals;
4, UE_A modulates the signal re-starting after coding, then sends to UE_B;
5,, after UE_B receives, just can be played to the CMMB video that comes from UE_A.
After this, in UE_A and UE_B, either party can cancel the shared process of this CMMB video.
Certainly; the present invention also can have other various embodiments; in the situation that not deviating from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (8)
1. a method for shared China Mobile multimedia broadcasting CMMB video, is applied to, between the first mobile terminal and the second mobile terminal without CMMB signal receiving module with CMMB signal receiving module, it is characterized in that,
Described the second mobile terminal sends the request of sharing CMMB video to described the first mobile terminal;
After described the first mobile terminal is received, if it is playing CMMB video frequency program, the signal of in progress this program is re-encoded as to video format general and applicable mobile network's transmission, and after ovennodulation, sends to described the second mobile terminal;
Described the second mobile terminal receives and plays the CMMB signal through recompile.
2. the method for claim 1, is characterized in that,
Described video format general and applicable mobile network's transmission is 3GP form.
3. the method for claim 1, is characterized in that,
Described the first mobile terminal refers in progress CMMB signal recompile: described the first mobile terminal judges whether described the second mobile terminal is its friendly user, if so, to described in progress CMMB signal recompile.
4. method as claimed in claim 3, is characterized in that,
If it is not its friendly user that described the first mobile terminal is judged described the second mobile terminal, described the first mobile terminal no longer carries out recompile, modulation and transmit operation to described in progress CMMB signal.
5. method as claimed in claim 4, is characterized in that, if described the first mobile terminal is judged described the second mobile terminal, is not its friendly user, also comprises:
The second mobile terminal described in described the first mobile terminal shielding.
6. the method as described in any one in claim 1～5, is characterized in that,
Described the first mobile terminal refers to the signal recompile of in progress program: described the first mobile terminal self arranges coding bit rate and resolution, and according to this coding bit rate and resolution, the signal of in progress program is carried out to recompile.
7. a mobile terminal for China Mobile multimedia broadcasting CMMB video share service can be provided, comprise CMMB signal receiving module, CMMB demodulation module, CMMB decoding process module, digital base band processor module, wireless radio frequency modules and signal transmitting and receiving module; Described CMMB signal receiving module is used for receiving CMMB signal, and described CMMB demodulation module is for carrying out demodulation to the CMMB signal receiving, filtering high-frequency signal; Described CMMB decoding process module is decoded for the signal that described CMMB demodulation module is demodulated; It is characterized in that,
Described digital base band processor module is for receiving and share after screen request in described signal transmitting and receiving module, and the CMMB signal that described CMMB decoding process module is decoded carries out recompile, is encoded into video format general and applicable wireless network transmissions;
Described wireless radio frequency modules is for modulating the signal after recompile;
Described signal transmitting and receiving module, for receiving the shared video request that other is not sent with the mobile terminal of CMMB signal receiving module, also sends for the signal that described wireless radio frequency modules is modulated.
8. mobile terminal as claimed in claim 7, is characterized in that,
Described video format general and applicable mobile network's transmission is 3GP form.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910119746.3A CN101848347B (en) | 2009-03-24 | 2009-03-24 | Method for sharing CMMB video and mobile terminal providing sharing service |
| PCT/CN2009/075740 WO2010108372A1 (en) | 2009-03-24 | 2009-12-18 | Method for sharing china mobile multimedia broadcasting video and mobile terminal for providing the sharing service |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910119746.3A CN101848347B (en) | 2009-03-24 | 2009-03-24 | Method for sharing CMMB video and mobile terminal providing sharing service |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101848347A CN101848347A (en) | 2010-09-29 |
| CN101848347B true CN101848347B (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910119746.3A Expired - Fee Related CN101848347B (en) | 2009-03-24 | 2009-03-24 | Method for sharing CMMB video and mobile terminal providing sharing service |
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| Country | Link |
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| CN (1) | CN101848347B (en) |
| WO (1) | WO2010108372A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102075704A (en) * | 2010-12-30 | 2011-05-25 | 北京牡丹电子集团有限责任公司 | Transmitting equipment combined concrete rectangular open caisson basin of CMMB (China Mobile Multimedia Broadcasting) mobile video transmission system and construction method thereof |
| CN102868932A (en) * | 2011-07-08 | 2013-01-09 | 中兴通讯股份有限公司 | Method and terminal for acquiring mobile multimedia broadcasting frequency point information |
| CN104796746A (en) * | 2015-04-22 | 2015-07-22 | 郑州市辉邦电子科技有限公司 | CMMB (China mobile multimedia broadcasting) WIFI (wireless fidelity) digital multimedia player terminal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201127081Y (en) * | 2007-09-19 | 2008-10-01 | 中兴通讯股份有限公司 | System for implementing multimedia contents share |
| CN101340253A (en) * | 2008-08-07 | 2009-01-07 | 北京创毅视讯科技有限公司 | Mobile multimedia broadcast receiving apparatus, receiving card and receiving terminal |
| CN101388974A (en) * | 2008-10-22 | 2009-03-18 | 中兴通讯股份有限公司 | Mobile digital multimedia broadcast receiving device and method |
-
2009
- 2009-03-24 CN CN200910119746.3A patent/CN101848347B/en not_active Expired - Fee Related
- 2009-12-18 WO PCT/CN2009/075740 patent/WO2010108372A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201127081Y (en) * | 2007-09-19 | 2008-10-01 | 中兴通讯股份有限公司 | System for implementing multimedia contents share |
| CN101340253A (en) * | 2008-08-07 | 2009-01-07 | 北京创毅视讯科技有限公司 | Mobile multimedia broadcast receiving apparatus, receiving card and receiving terminal |
| CN101388974A (en) * | 2008-10-22 | 2009-03-18 | 中兴通讯股份有限公司 | Mobile digital multimedia broadcast receiving device and method |
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| Publication number | Publication date |
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| WO2010108372A1 (en) | 2010-09-30 |
| CN101848347A (en) | 2010-09-29 |
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