CN101340253B - Mobile multimedia broadcast receiving apparatus, receiving card and receiving terminal - Google Patents
Mobile multimedia broadcast receiving apparatus, receiving card and receiving terminal Download PDFInfo
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- CN101340253B CN101340253B CN200810118224A CN200810118224A CN101340253B CN 101340253 B CN101340253 B CN 101340253B CN 200810118224 A CN200810118224 A CN 200810118224A CN 200810118224 A CN200810118224 A CN 200810118224A CN 101340253 B CN101340253 B CN 101340253B
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Abstract
The invention discloses a receiving device for mobile multimedia broadcast (CMMB), a receiving card and a receiving terminal thereof. The receiving device for the mobile multimedia broadcast comprises radio frequency signal receiving and transformation as well as CMMB receiving, therefore, the users can conveniently realize the support for CMMB receiving function without adding hardware design. By setting the CMMB receiving function in the receiving card, the receiving card has the CMMB signal receiving function, therefore, users only need to use the receiving card as usual by inserting the receiving card into the receiving terminal so as to conveniently realize the support for the CMMB receiving function and receive CMMB digital TV signal. For receiving terminal manufacturers, no extra software and hardware technical support are needed, therefore, the development cycle of the receiving terminal is shortened and the investment is saved.
Description
Technical field
The present invention relates to China mobile multi-media broadcasting technology, refer to a kind of mobile multimedia broadcast receiving apparatus, receiving card and receiving terminal especially.
Background technology
China Mobile multimedia broadcasting technology alliance abbreviates China Mobile multimedia broadcasting (CMMB as, China Mobile Multimedia Broadcasting), it is intended to develop multimedia reception technique and the equipment that is fit to move application as the technical system of serving China Mobile multimedia broadcasting.
In order to receive the CMMB signal, need configuration corresponding C MMB receiving equipment.The operation principle of CMMB receiving equipment is roughly: the analog signal that receives is carried out obtaining digital signal after mould/number conversion, digital signal is handled through channel synchronization, detect and extract CMMB signal wherein, and the CMMB signal that extracts is carried out obtaining meeting after the demodulation CMMB audio/video flow of CMMB standard.
Usually, the CMMB signal receiver can use on receiving terminal, so that receiving terminal can receive mobile multimedia data stream, described receiving terminal can be a portable terminal, also can be fixed terminal.And in order to increase the CMMB receiving function in receiving terminal, except needs were provided with the CMMB receiving equipment on receiving terminal, receiving terminal producer for example cell phone manufacturer also will increase corresponding hardware module and software processes.
At hardware aspect, increase some peripheral circuits such as radiofrequency signal and receive and conversion module, be used for small radiofrequency signal amplification, filtering, and after being converted to baseband signal, send to the CMMB signal receiver; Baseband signal can analog baseband signal, as analogue zero intermediate frequency or Low Medium Frequency signal or analog I signal, also can be digital baseband signal, as digital Low Medium Frequency signal, and perhaps digital zero intermediate-freuqncy signal, perhaps digital baseband IQ signal.
Aspect software, because the interface that the CMMB signal receiver provides is determined by different manufacturers, there is not unified standard, therefore, mobile device producer generally all needs the CMMB audio/video flow that meets the CMMB standard with CMMB receiving equipment output to be converted to the CMMB audio/video flow of the interface protocol of self supporting after send to the processing unit of receiving terminal by interface, just can complete successfully the reception of CMMB signal.
At present, to the use of CMMB signal receiver, concerning user such as receiving terminal producer, in order in receiving terminal, to support the CMMB receiving function, need provide technical support aspect the software and hardware two, bring the increase receiving terminal construction cycle undoubtedly, increase problems such as investment.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of mobile multimedia broadcast receiving apparatus, can realize the support to the CMMB receiving function easily.
Another object of the present invention is to provide a kind of receiving card that receives Mobile Multimedia Broadcasting, can realize support easily the CMMB receiving function.
Another purpose of the present invention is to provide a kind of receiving terminal, can support the CMMB receiving function, and need not the extra software and hardware technology support of receiving terminal producer increase, has shortened the receiving terminal construction cycle, has saved investment.
For achieving the above object, technical scheme of the present invention specifically is achieved in that
A kind of Mobile Multimedia Broadcasting CMMB receiving system comprises radiofrequency signal reception and converting unit and CMMB signal receiving unit; Wherein,
Radiofrequency signal receives and converting unit, and the radiofrequency signal that is used for receiving by antenna is amplified, filtering, and is converted to baseband signal; Described antenna is arranged on the mobile multimedia broadcast receiving apparatus, perhaps utilizes the existing antenna of the applied receiving terminal of mobile multimedia broadcast receiving apparatus itself;
The CMMB signal receiving unit is exported after obtaining meeting the CMMB audio/video flow of CMMB standard after being used for the baseband signal that receives handled.
Described CMMB signal receiving unit is further used for, and the CMMB audio/video flow that will meet the CMMB standard is converted to output again behind the CMMB audio/video flow of the interface protocol that meets interface unit.
Described baseband signal is a digital baseband signal; Described CMMB signal receiving unit comprises channel synchronization module, demodulation module and protocol conversion module, wherein,
The signal Synchronization module is used for receiving baseband signal, detects and extract the CMMB signal;
Demodulation module is used for the CMMB signal that extracts is carried out obtaining meeting after the demodulation CMMB audio/video flow of CMMB standard;
Protocol conversion module, the CMMB audio/video flow that is used for meeting the CMMB standard is converted to the CMMB audio/video flow of the interface protocol that meets interface module, and sends to the processing unit of receiving terminal via described interface unit.
Described baseband signal is an analog baseband signal; Described CMMB signal receiving unit comprises channel synchronization module, demodulation module, protocol conversion module and mould/number conversion module, wherein,
Mould/number conversion module, the analog baseband signal that is used for receiving is converted to digital baseband signal, and sends to described signal Synchronization module;
The signal Synchronization module is used for receiving baseband signal, detects and extract the CMMB signal;
Demodulation module is used for the CMMB signal that extracts is carried out obtaining meeting after the demodulation CMMB audio/video flow of CMMB standard;
Protocol conversion module, the CMMB audio/video flow that is used for meeting the CMMB standard is converted to the CMMB audio/video flow of the interface protocol that meets interface module, and sends to the processing unit of receiving terminal via described interface unit.
A kind of receiving card that receives Mobile Multimedia Broadcasting CMMB comprises radiofrequency signal reception and converting unit, CMMB signal receiving unit and interface unit; Wherein,
Radiofrequency signal receives and converting unit, and the radiofrequency signal that is used for receiving by antenna is amplified, filtering, and is converted to baseband signal;
The CMMB signal receiving unit obtains meeting the CMMB audio/video flow of CMMB standard after being used for the baseband signal that receives handled, and is converted into the CMMB audio/video flow of the interface protocol that meets interface unit;
Interface unit, the CMMB audio/video flow that is used for meeting the interface protocol of self sends to the processing unit of receiving terminal.
Described baseband signal is a digital baseband signal; Described CMMB signal receiving unit comprises channel synchronization module, demodulation module and protocol conversion module, wherein,
The signal Synchronization module is used for receiving baseband signal, detects and extract the CMMB signal;
Demodulation module is used for the CMMB signal that extracts is carried out obtaining meeting after the demodulation CMMB audio/video flow of CMMB standard;
Protocol conversion module, the CMMB audio/video flow that is used for meeting the CMMB standard is converted to the CMMB audio/video flow of the interface protocol that meets interface module, and sends to the processing unit of receiving terminal via described interface unit.
Described baseband signal is an analog baseband signal; Described CMMB signal receiving unit comprises channel synchronization module, demodulation module, protocol conversion module and mould/number conversion module, wherein,
Mould/number conversion module, the analog baseband signal that is used for receiving is converted to digital baseband signal, and sends to described signal Synchronization module;
The signal Synchronization module is used for receiving baseband signal, detects and extract the CMMB signal;
Demodulation module is used for the CMMB signal that extracts is carried out obtaining meeting after the demodulation CMMB audio/video flow of CMMB standard;
Protocol conversion module, the CMMB audio/video flow that is used for meeting the CMMB standard is converted to the CMMB audio/video flow of the interface protocol that meets interface module, and sends to the processing unit of receiving terminal via described interface unit.
Described interface unit comprises the MMIS interface module, perhaps SPI interface module, perhaps SDIO interface module, perhaps SPI interface module and SDIO interface.
Described baseband signal is an analog baseband signal, and analog baseband signal is simulation Low Medium Frequency signal, perhaps analogue zero intermediate-freuqncy signal, perhaps analog I signal;
Perhaps, baseband signal is a digital baseband signal, and digital baseband signal is digital Low Medium Frequency signal or digital zero intermediate-freuqncy signal or digital baseband IQ signal.
Described antenna is arranged on the receiving card, perhaps utilizes the existing antenna of the applied receiving terminal of receiving card itself.
Described receiving card is mini secure data storage card Mini SD or miniature secure data storage card MicroSD, wireless Internet card.
A kind of receiving terminal comprises receiving card at least, and described receiving card comprises radiofrequency signal reception and converting unit, CMMB signal receiving unit and interface unit; Wherein,
Radiofrequency signal receives and converting unit, and the radiofrequency signal that is used for receiving by antenna is amplified, filtering, and is converted to baseband signal;
The CMMB signal receiving unit obtains meeting the CMMB audio/video flow of CMMB standard after being used for the baseband signal that receives handled, and is converted into the CMMB audio/video flow of the interface protocol that meets interface unit;
Interface unit, the CMMB audio/video flow that is used for meeting the interface protocol of self sends to the processing unit of receiving terminal.
Described baseband signal is a digital baseband signal; Described CMMB signal receiving unit comprises channel synchronization module, demodulation module and protocol conversion module, wherein,
The signal Synchronization module is used for receiving baseband signal, detects and extract the CMMB signal;
Demodulation module is used for the CMMB signal that extracts is carried out obtaining meeting after the demodulation CMMB audio/video flow of CMMB standard;
Protocol conversion module, the CMMB audio/video flow that is used for meeting the CMMB standard is converted to the CMMB audio/video flow of the interface protocol that meets interface module, and sends to the processing unit of receiving terminal via described interface unit.
Described baseband signal is an analog baseband signal; Described CMMB signal receiving unit comprises channel synchronization module, demodulation module, protocol conversion module and mould/number conversion module, wherein,
Mould/number conversion module, the analog baseband signal that is used for receiving is converted to digital baseband signal, and sends to described signal Synchronization module;
The signal Synchronization module is used for receiving baseband signal, detects and extract the CMMB signal;
Demodulation module is used for the CMMB signal that extracts is carried out obtaining meeting after the demodulation CMMB audio/video flow of CMMB standard;
Protocol conversion module, the CMMB audio/video flow that is used for meeting the CMMB standard is converted to the CMMB audio/video flow of the interface protocol that meets interface module, and sends to the processing unit of receiving terminal via described interface unit.
Described receiving terminal is one of following: notebook computer, mobile phone, MP4, digital camera, digital camera, digital camera, GPS navigation device, vehicle multimedia system, have controlled function earphone, have the earphone of Bluetooth function.
As seen from the above technical solution, mobile multimedia broadcast receiving apparatus provided by the invention comprises that radiofrequency signal receives and conversion, and CMMB reception two parts, and need not the user increases hardware designs, just can realize the support to the CMMB receiving function easily.The present invention is by being provided with the CMMB receiving function in receiving card, make receiving card have the CMMB signal receiving function, the user only needs as using receiving card at ordinary times receiving card to be inserted receiving terminal, just can realize support easily, receive the CMMB digital television signal the CMMB receiving function.And, do not need to increase extra software and hardware technology support for receiving terminal producer, and shortened the receiving terminal construction cycle, saved investment.
Description of drawings
Fig. 1 is the composition structural representation of mobile multimedia broadcast receiving apparatus of the present invention;
Fig. 2 is the composition structural representation of receiving card of the present invention;
Fig. 3 is the composition structural representation of CMMB signal receiving unit of the present invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.
Fig. 1 is the composition structural representation of mobile multimedia broadcast receiving apparatus of the present invention, and as shown in Figure 1, this device comprises radiofrequency signal reception and converting unit and CMMB signal receiving unit, wherein,
Radiofrequency signal reception and converting unit, the small radiofrequency signal that is used for receiving by antenna is amplified, filtering, and is converted to baseband signal.Baseband signal can analog baseband signal, as analogue zero intermediate frequency or Low Medium Frequency signal or analog I signal, also can be digital baseband signal, as digital Low Medium Frequency signal, and perhaps digital zero intermediate-freuqncy signal, perhaps digital baseband IQ signal.
Need to prove that antenna can be that an antenna is set on the mobile multimedia broadcast receiving apparatus card, also can utilize the existing antenna of the applied receiving terminal of mobile multimedia broadcast receiving apparatus itself.Setting about antenna belongs to those skilled in the art's conventional techniques means, repeats no more here.
Radiofrequency signal receives and the specific implementation of converting unit belongs to prior art, also no longer describes in detail here.
The CMMB signal receiving unit obtains meeting the CMMB audio/video flow of CMMB standard after being used for the baseband signal that receives handled, and exports after being converted into the CMMB audio/video flow of supporting one or more interface protocols.Interface protocol can be SDIO agreement, MMIS agreement, SPI agreement etc.
Need to prove, the CMMB signal receiving unit also can only be exported the CMMB audio/video flow that meets the CMMB standard, like this, using mobile multimedia broadcast receiving apparatus of the present invention, only the CMMB audio/video flow that needs the user will meet the CMMB standard is converted to the CMMB audio/video flow that meets the interface protocol that the user self supported and gets final product.
At present, the receiving card that much can use in receiving terminal is arranged on the market, such as mini secure data storage card (Mini SD), miniature secure data storage card smart cards such as (Micro SD), or wireless Internet card. receiving terminal can include but not limited to that notebook computer, mobile phone, MP4, digital camera, digital camera, digital camera, GPS navigation device, vehicle multimedia system, the earphone with controlled function, radio receiving terminal are as earphone with Bluetooth function etc.
Wherein, Mini SD has application widely in receiving terminal.Because its volume is little, compatible good, increasing receiving terminal is selected the carrier of Mini SD card as product.
Fig. 2 is the composition structural representation of receiving card of the present invention, only shows among Fig. 1 and supports the unit that the CMMB function is relevant and the interface unit of receiving card, and other unit of receiving card itself such as memory cell etc. are not shown in Figure 1.As shown in Figure 1, receiving card of the present invention comprises that radiofrequency signal receives and converting unit, CMMB signal receiving unit and interface unit, wherein,
Radiofrequency signal reception and converting unit, the small radiofrequency signal that is used for receiving by antenna is amplified, filtering, and is converted to baseband signal.Baseband signal can analog baseband signal, as analogue zero intermediate frequency or Low Medium Frequency signal or analog I signal, also can be digital baseband signal, as digital Low Medium Frequency signal, and perhaps digital zero intermediate-freuqncy signal, perhaps digital baseband IQ signal.
Need to prove that antenna can be that an antenna is set on receiving card, also can utilize the existing antenna of the applied receiving terminal of receiving card itself.Setting about antenna belongs to those skilled in the art's conventional techniques means, repeats no more here.
Radiofrequency signal receives and the specific implementation of converting unit belongs to prior art, also no longer describes in detail here.
The CMMB signal receiving unit, obtain meeting the CMMB audio/video flow of CMMB standard after being used for the baseband signal that receives handled, and be converted into the CMMB audio/video flow of the interface protocol that meets interface unit after interface unit sends to the processing unit of receiving terminal.
Such as interface unit is the SDIO interface unit, and the CMMB signal receiving unit need be converted to the CMMB audio/video flow CMMB audio/video flow that meets the SDIO agreement;
Such as interface unit is mobile multimedia interface (MMIS, Mobile media interface service) unit, and the CMMB signal receiving unit need be converted to the CMMB audio/video flow CMMB audio/video flow that meets the MMIS agreement;
Such as interface unit is serial protocol interface (SPI, Serial protocol interface) unit, and the CMMB signal receiving unit need be converted to the CMMB audio/video flow CMMB audio/video flow that meets the SPI agreement.
From the present invention program as seen, because receiving card has the CMMB signal receiving function, the user only needs as using receiving card at ordinary times receiving card to be inserted receiving terminal, just can realize the support to the CMMB receiving function easily, receives the CMMB digital television signal.And, do not need to increase extra software and hardware technology support for receiving terminal producer, and shortened the receiving terminal construction cycle, saved investment.
Fig. 3 is the composition structural representation of CMMB signal receiving unit of the present invention, as shown in Figure 2, if radiofrequency signal reception and converting unit output is digital baseband signal, the CMMB signal receiving unit can comprise channel synchronization module, demodulation module and protocol conversion module, wherein
The signal Synchronization module is used to receive digital baseband signal, detects and extract the CMMB signal.
Demodulation module is used for the CMMB signal that extracts is carried out obtaining meeting after the demodulation CMMB audio/video flow of CMMB standard.
Protocol conversion module, the CMMB audio/video flow that is used for meeting the CMMB standard is converted to the CMMB audio/video flow of the interface protocol that meets interface module, and sends to the processing unit of receiving terminal via interface unit.
Interface unit can comprise the MMIS interface module, perhaps SPI interface module, perhaps SDIO interface module, perhaps SPI interface module and SDIO interface etc.
In addition, between protocol conversion module and interface unit, cache module can be set further.
If what radiofrequency signal received and converting unit is exported is analog baseband signal, so, the CMMB signal receiving unit also comprises mould/number conversion module, and the analog baseband signal that is used for receiving is converted to digital baseband signal, and sends to described signal Synchronization module.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1. a Mobile Multimedia Broadcasting CMMB receiving system is characterized in that, comprises radiofrequency signal reception and converting unit and CMMB signal receiving unit; Wherein,
Radiofrequency signal receives and converting unit, and the radiofrequency signal that is used for receiving by antenna is amplified, filtering, and is converted to baseband signal; Described antenna is arranged on the mobile multimedia broadcast receiving apparatus, perhaps utilizes the existing antenna of the applied receiving terminal of mobile multimedia broadcast receiving apparatus itself;
The CMMB signal receiving unit is exported after obtaining meeting the CMMB audio/video flow of CMM standard after being used for the baseband signal that receives handled.
2. mobile multimedia broadcast receiving apparatus according to claim 1, it is characterized in that, described CMMB signal receiving unit is further used for, and the CMMB audio/video flow that will meet the CMM standard is converted to output again behind the CMMB audio/video flow of the interface protocol that meets interface unit.
3. mobile multimedia broadcast receiving apparatus according to claim 1 and 2 is characterized in that, described baseband signal is a digital baseband signal; Described CMM signal receiving unit comprises channel synchronization module, demodulation module and protocol conversion module, wherein,
The signal Synchronization module is used for receiving baseband signal, detects and extract the CMM signal;
Demodulation module is used for the CMM signal that extracts is carried out obtaining meeting after the demodulation CMMB audio/video flow of CMMB standard;
Protocol conversion module, the CMMB audio/video flow that is used for meeting the CMMB standard is converted to the CMM audio/video flow of the interface protocol that meets interface module, and sends to the processing unit of receiving terminal via described interface unit.
4. mobile multimedia broadcast receiving apparatus according to claim 1 and 2 is characterized in that, described baseband signal is an analog baseband signal; Described CMMB signal receiving unit comprises channel synchronization module, demodulation module, protocol conversion module and mould/number conversion module, wherein,
Mould/number conversion module, the analog baseband signal that is used for receiving is converted to digital baseband signal, and sends to described signal Synchronization module;
The signal Synchronization module is used for receiving baseband signal, detects and extract the CMMB signal;
Demodulation module is used for the CMMB signal that extracts is carried out obtaining meeting after the demodulation CMMB audio/video flow of CMMB standard;
Protocol conversion module, the CMMB audio/video flow that is used for meeting the CMMB standard is converted to the CMMB audio/video flow of the interface protocol that meets interface module, and sends to the processing unit of receiving terminal via described interface unit.
5. a receiving card that receives Mobile Multimedia Broadcasting CMMB is characterized in that, comprises radiofrequency signal reception and converting unit, CMMB signal receiving unit and interface unit; Wherein,
Radiofrequency signal receives and converting unit, and the radiofrequency signal that is used for receiving by antenna is amplified, filtering, and is converted to baseband signal;
The CMMB signal receiving unit obtains meeting the CMMB audio/video flow of CMMB standard after being used for the baseband signal that receives handled, and is converted into the CMMB audio/video flow of the interface protocol that meets interface unit;
Interface unit, the CMMB audio/video flow that is used for meeting the interface protocol of self sends to the processing unit of receiving terminal.
6. receiving card according to claim 5 is characterized in that, described baseband signal is a digital baseband signal; Described CMMB signal receiving unit comprises channel synchronization module, demodulation module and protocol conversion module, wherein,
The signal Synchronization module is used for receiving baseband signal, detects and extract the CMMB signal;
Demodulation module is used for the CMMB signal that extracts is carried out obtaining meeting after the demodulation CMMB audio/video flow of CMMB standard;
Protocol conversion module, the CMMB audio/video flow that is used for meeting the CMMB standard is converted to the CMMB audio/video flow of the interface protocol that meets interface module, and sends to the processing unit of receiving terminal via described interface unit.
7. receiving card according to claim 5 is characterized in that, described baseband signal is an analog baseband signal; Described CMMB signal receiving unit comprises channel synchronization module, demodulation module, protocol conversion module and mould/number conversion module, wherein,
Mould/number conversion module, the analog baseband signal that is used for receiving is converted to digital baseband signal, and sends to described signal Synchronization module;
The signal Synchronization module is used for receiving baseband signal, detects and extract the CMMB signal;
Demodulation module is used for the CMMB signal that extracts is carried out obtaining meeting after the demodulation CMMB audio/video flow of CMMB standard;
Protocol conversion module, the CMMB audio/video flow that is used for meeting the CMMB standard is converted to the CMMB audio/video flow of the interface protocol that meets interface module, and sends to the processing unit of receiving terminal via described interface unit.
8. receiving card according to claim 6 is characterized in that described interface unit comprises the MMIS interface module, perhaps SPI interface module, perhaps SDIO interface module, perhaps SPI interface module and SDIO interface.
9. receiving card according to claim 5 is characterized in that, described baseband signal is an analog baseband signal, and analog baseband signal is simulation Low Medium Frequency signal, perhaps analogue zero intermediate-freuqncy signal, perhaps analog I signal;
Perhaps, baseband signal is a digital baseband signal, and digital baseband signal is digital Low Medium Frequency signal or digital zero intermediate-freuqncy signal or digital baseband IQ signal.
10. receiving card according to claim 5 is characterized in that described antenna is arranged on the receiving card, perhaps utilizes the existing antenna of the applied receiving terminal of receiving card itself.
11., it is characterized in that described receiving card is mini secure data storage card Mini SD or miniature secure data storage card Micro SD, wireless Internet card according to each described receiving card of claim 5～10.
12. a receiving terminal is characterized in that, comprises receiving card at least, described receiving card comprises radiofrequency signal reception and converting unit, CMMB signal receiving unit and interface unit; Wherein,
Radiofrequency signal receives and converting unit, and the radiofrequency signal that is used for receiving by antenna is amplified, filtering, and is converted to baseband signal;
The CMMB signal receiving unit obtains meeting the CMMB audio/video flow of CMMB standard after being used for the baseband signal that receives handled, and is converted into the CMMB audio/video flow of the interface protocol that meets interface unit;
Interface unit, the CMMB audio/video flow that is used for meeting the interface protocol of self sends to the processing unit of receiving terminal.
13. receiving terminal according to claim 12 is characterized in that, described baseband signal is a digital baseband signal; Described CMMB signal receiving unit comprises channel synchronization module, demodulation module and protocol conversion module, wherein,
The signal Synchronization module is used for receiving baseband signal, detects and extract the CMMB signal;
Demodulation module is used for the CMMB signal that extracts is carried out obtaining meeting after the demodulation CMMB audio/video flow of CMMB standard;
Protocol conversion module, the CMMB audio/video flow that is used for meeting the CMMB standard is converted to the CMMB audio/video flow of the interface protocol that meets interface module, and sends to the processing unit of receiving terminal via described interface unit.
14. receiving terminal according to claim 12 is characterized in that, described baseband signal is an analog baseband signal; Described CMMB signal receiving unit comprises channel synchronization module, demodulation module, protocol conversion module and mould/number conversion module, wherein,
Mould/number conversion module, the analog baseband signal that is used for receiving is converted to digital baseband signal, and sends to described signal Synchronization module;
The signal Synchronization module is used for receiving baseband signal, detects and extract the CMMB signal;
Demodulation module is used for the CMMB signal that extracts is carried out obtaining meeting after the demodulation CMMB audio/video flow of CMMB standard;
Protocol conversion module, the CMMB audio/video flow that is used for meeting the CMMB standard is converted to the CMMB audio/video flow of the interface protocol that meets interface module, and sends to the processing unit of receiving terminal via described interface unit.
15. according to each described receiving terminal of claim 12～14, it is characterized in that described receiving terminal is one of following: notebook computer, mobile phone, MP4, digital camera, digital camera, digital camera, GPS navigation device, vehicle multimedia system, have controlled function earphone, have the earphone of Bluetooth function.
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| CN101848347B (en) * | 2009-03-24 | 2014-03-12 | 中兴通讯股份有限公司 | Method for sharing CMMB video and mobile terminal providing sharing service |
| CN101873406A (en) * | 2009-04-24 | 2010-10-27 | 希姆通信息技术（上海）有限公司 | Implementation method of CMMB (China Mobile Multimedia Broadcasting) condition receiving system on mobile terminal |
| CN102209373B (en) * | 2010-06-25 | 2016-01-20 | 无锡中科龙泽信息科技有限公司 | A kind of power consumption adaptive circuit of microSD type radio reception device and method thereof |
| CN103136556B (en) * | 2013-01-25 | 2016-12-28 | 广东翼卡车联网服务有限公司 | A kind of SD equipment complex and reading/writing method thereof |
| CN103112415B (en) * | 2013-01-25 | 2015-07-15 | 广东翼卡车联网服务有限公司 | Communication method of 24LE1 wireless module and wince |
| CN103108038B (en) * | 2013-01-25 | 2015-10-28 | 广东翼卡车联网服务有限公司 | Based on the data transmission method of SD equipment complex and system in car networking |
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| CN201039216Y (en) * | 2007-04-18 | 2008-03-19 | 上海庞米电子信息技术有限公司 | Digital multi-media broadcast receiving and transmission device based on quick card interface |
| CN201171229Y (en) * | 2007-11-26 | 2008-12-24 | 吴湛 | CMMB receiving terminal |
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| CN201039216Y (en) * | 2007-04-18 | 2008-03-19 | 上海庞米电子信息技术有限公司 | Digital multi-media broadcast receiving and transmission device based on quick card interface |
| CN201171229Y (en) * | 2007-11-26 | 2008-12-24 | 吴湛 | CMMB receiving terminal |
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Denomination of invention: Mobile multimedia broadcast receiving apparatus, receiving card and receiving terminal Effective date of registration: 20130205 Granted publication date: 20100512 Pledgee: China Development Bank Co Pledgor: Beijing InnoFidei Technology Co. Ltd.|Beijing smartwell xunlian Polytron Technologies Inc|Anhui smartwell Communication Technology Co. Ltd. Registration number: 2013990000087 |
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