CN201479315U - Wireless multimedia signal receiver and a multimedia device comprising same - Google Patents
Wireless multimedia signal receiver and a multimedia device comprising same Download PDFInfo
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- CN201479315U CN201479315U CN2009201503873U CN200920150387U CN201479315U CN 201479315 U CN201479315 U CN 201479315U CN 2009201503873 U CN2009201503873 U CN 2009201503873U CN 200920150387 U CN200920150387 U CN 200920150387U CN 201479315 U CN201479315 U CN 201479315U
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Abstract
The utility model provides a wireless multimedia signal receiver and a multimedia device comprising the wireless multimedia signal receive. The wireless multimedia signal receiver comprises an antenna for receiving a wireless multimedia signal and is characterized by also comprising a CMMB tuner, a CMMB demodulator, a DAB tuner and a DAB demodulator, wherein the CMMB tuner is connected with the antenna and used for tuning a CMMB signal received by the antenna; the CMMB demodulator is connected with the CMMB tuner and used for demodulating the tuned CMMB signal and outputting the demodulated CMMB signal; the DAB tuner is connected with the antenna and used for tuning a DAB signal received by the antenna; and the DAB demodulator is connected with the DAB tuner and used for demodulating the tuned DAB signal and outputting the demodulated DAB signal. The wireless multimedia signal receiver also can be used for receiving analog television signals.
Description
Technical field
The utility model relates to radio multimedium to be handled, and relates in particular to a kind of radio multimedium signal receiver.
Background technology
In recent years, receive the radio multimedium signal with mobile device in the world and become more and more general.In China, SARFT(The State Administration of Radio and Television) has formally issued China Mobile multimedia broadcasting (being commonly called as mobile TV) industry standard, that is, and and China Mobile multimedia broadcasting system (being called for short CMMB) industry standard.This standard code in the broadcasting service frequency range, frame structure, chnnel coding and the modulation of mobile multimedia broadcast system broadcast channel transmission signals, this standard is applicable to the broadcasting service frequency in 30MHz arrives the 3000MHz frequency range, via satellite and/or the broadcast system of multi-media signals such as terrestrial wireless emission TV, broadcasting, data message, can realize whole nation roaming, transmission technology adopts the STiMi technology.In addition, set up the network that meets DAB (digital audio broadcasting) standard in a lot of places of China, the DAB network has changed traditional broadcast technology, has improved the sound broadcast quality and the high-speed mobile receptivity is provided.
Though the mobile device such as MP4 that has had manufacturers produce to go out to meet the mobile phone of CMMB standard and can listen to DAB broadcasting,, be not all compatible CMMB standard of all mobile devices (especially mobile phone) or DAB standard.In addition, if the user want to watch the CMMB signal or listen to the DAB signal that with the mobile device of incompatible CMMB standard or DAB standard he or she can only remove to buy the new equipment that possesses such function.
The utility model content
The purpose of this utility model provides one can support that many standards, multiband receive, the solution of the radio multimedium receiver of low-power consumption.Particularly, the utility model provides a kind of radio multimedium signal receiver that can receive CMMB signal and DAB signal, and a kind of multimedia device that uses this radio multimedium signal receiver.
According to the utility model, a kind of radio multimedium signal receiver is provided, it comprises the antenna that is used for receiving the radio multimedium signal, it is characterized in that also comprising:
The CMMB tuner, it is connected to described antenna, and carries out tuning to the CMMB signal that is received by antenna;
The CMMB demodulator, it is connected to described CMMB tuner, and to carrying out demodulation through tuning CMMB signal, and the CMMB signal after the output demodulation;
The DAB tuner, it is connected to described antenna, and carries out tuning to the DAB signal that is received by antenna; And
The DAB demodulator, it is connected to described DAB tuner, and to carrying out demodulation through tuning DAB signal, and the DAB signal after the output demodulation.
Described radio multimedium signal receiver also comprises:
The anolog TV signals tuner, it is connected to described antenna, and carries out tuning to the anolog TV signals that received by antenna;
The anolog TV signals demodulator, it is connected to described anolog TV signals tuner, and to carrying out demodulation through tuning anolog TV signals, and the anolog TV signals after the output demodulation.
Described radio multimedium signal receiver also comprises:
Input/output interface is used for being provided to external equipment from outer equipment receiving data with the data of described radio multimedium signal receiver.
In described radio multimedium signal receiver, described input/output interface is the interface according to USB 2.0 standards.
Described radio multimedium signal receiver also comprises power supply.
According to the utility model, a kind of multimedia device is provided, it comprises playing audio/video, and this equipment operates displaying video content and audio content according to the user, and this multimedia device is characterised in that also and comprises:
The radio multimedium signal receiver, described radio multimedium signal receiver comprises:
Antenna is used for receiving the radio multimedium signal;
The CMMB tuner, it is connected to described antenna, and carries out tuning to the CMMB signal that is received by antenna;
The CMMB demodulator, it is connected to described CMMB tuner, and to carrying out demodulation through tuning CMMB signal, and the CMMB signal after the output demodulation;
The DAB tuner, it is connected to described antenna, and carries out tuning to the DAB signal that is received by antenna; And
The DAB demodulator, it is connected to described DAB tuner, and to carrying out demodulation through tuning DAB signal, and the DAB signal after the output demodulation;
Wherein, described playing audio/video receives from the signal of described CMMB demodulator and the output of described DAB demodulator and plays.
In described multimedia device, described radio multimedium signal receiver also comprises:
The anolog TV signals tuner, it is connected to described antenna, and carries out tuning to the anolog TV signals that received by antenna;
The anolog TV signals demodulator, it is connected to described anolog TV signals tuner, and to carrying out demodulation through tuning anolog TV signals, and the anolog TV signals after the output demodulation,
Wherein, described playing audio/video receives from the anolog TV signals of described anolog TV signals demodulator output and plays.
In described multimedia device, it is characterized in that described playing audio/video and described radio multimedium signal receiver include:
Input/output interface is used for being provided to external equipment from outer equipment receiving data with the data of described radio multimedium signal receiver,
Wherein, described playing audio/video and described radio multimedium signal receiver are connected to each other by described input/output interface.
In described multimedia device, described input/output interface is the interface according to USB 2.0 standards.
In described multimedia device, described playing audio/video and described radio multimedium signal receiver the two or one of comprise power supply.
In described multimedia device, described playing audio/video is one of mobile phone, personal digital assistant, MP4 player, handheld device, notebook.
By radio multimedium signal receiver of the present utility model, can realize reception to various multi-media signals.And radio multimedium signal receiver of the present utility model is convenient to be used in combination with the various equipment that possess Presentation Function, and this makes the equipment that can not play one or more multi-media signals originally can play various multi-media signals.
Description of drawings
Fig. 1 is the block diagram according to radio multimedium signal receiver of the present utility model.
Fig. 2 is the block diagram according to multimedia device of the present utility model.
Embodiment
Fig. 1 is the block diagram according to radio multimedium signal receiver of the present utility model.As shown in Figure 1, the radio multimedium signal receiver comprises: the antenna that is used for receiving the radio multimedium signal; The CMMB tuner, it is connected to described antenna, and carries out tuning to the CMMB signal that is received by antenna; The CMMB demodulator, it is connected to described CMMB tuner, and to carrying out demodulation through tuning CMMB signal, and the CMMB signal after the output demodulation; The DAB tuner, it is connected to described antenna, and carries out tuning to the DAB signal that is received by antenna; And the DAB demodulator, it is connected to described DAB tuner, and to carrying out demodulation through tuning DAB signal, and the DAB signal after the output demodulation.
The radio multimedium signal receiver receives by the signal of antenna to VHF and UHF, and passes to CMMB tuner (UHF frequency band) or DAB tuner (VHF frequency band) according to respective standard.The wireless signal that receives will and amplify to adapt to its frequency by the filtering of radio multimedium signal receiver.Like this, when entering CMMB demodulator or DAB demodulator, it has just had the signal to noise ratio of suitable demodulation needs.Signal will be further filtered and be carried out DC and compensate and improve signal to noise ratio in demodulator.Certainly, also need signal to be carried out processing such as channel estimating, OFDM demodulation, FEC, at last the data of handling well are sent to external playing audio/video according to corresponding standard.Because processing such as channel estimating, OFDM demodulation, FEC are known in those skilled in the art, so not shown these processing and in Fig. 1 in this omission description of them.
Although not shown in the accompanying drawing, as required, the radio multimedium signal receiver among Fig. 1 also can comprise the multi-media signal of other kind, for example anolog TV signals.In the case, described radio multimedium signal receiver comprises: the anolog TV signals tuner, and it is connected to described antenna, and carries out tuning to the anolog TV signals that received by antenna; The anolog TV signals demodulator, it is connected to described anolog TV signals tuner, and to carrying out demodulation through tuning anolog TV signals, and the anolog TV signals after the output demodulation.It will be appreciated by those skilled in the art that described anolog TV signals can be provided for external playing audio/video to play through further handling.
In addition, although not shown, described radio multimedium signal receiver also can comprise input/output interface, is used for being provided to external equipment from outer equipment receiving data with the data of described radio multimedium signal receiver.In the radio multimedium signal receiver, described input/output interface can be the interface that meets various standards, for example, USB 2.0 interfaces, USB1.0 interface, blue tooth interface, or the like, can certainly be custom-designed interface.In the utility model, preferably meet the interface of USB 2.0 standards, this is because this interface can make things convenient for various multimedia equipments and join.In addition, except the transmission data, do not comprise at the radio multimedium signal receiver under the situation of power supply that this interface also can be used to be the power supply of radio multimedium signal receiver.When the radio multimedium signal receiver comprised the power supply of rechargeable battery and so on for example, this interface also can be this powered battery.
It should be noted that playing the needed decoder of above-mentioned various video/audio signals is not included in the radio multimedium signal receiver of the present utility model, therefore, playing audio-video needs external playing audio/video to possess the decoding playing function.
In addition, the radio multimedium signal receiver links to each other with external playing audio/video for convenience, the utility model has also comprised a series of HOST API storehouse, can support most of mainstream operation systems such as Win CE5.0/6.0, Microsoft Windows Mobile 5.0/6.0, Windows XP/Vista, Linux, Symbian, Nucleus etc.
Fig. 2 is the block diagram according to multimedia device of the present utility model.This multimedia device comprises playing audio/video and radio multimedium signal receiver.This radio multimedium signal receiver not only can be connected on the mobile phone with audio frequency and video playing function, also can with the computer with audio frequency and video playing function, PDA, the mobile multimedia player connects.
Playing audio/video operates displaying video content and audio content according to the user.Shown in Figure 2, this equipment has CPU, internal memory, keyboard, display unit and loudspeaker.In this multimedia device, when the CPU of playing audio/video and radio multimedium signal receiver shown in Figure 1 by input/output interface (being preferably the USB2.0 interface) when being connected, this equipment can receive CMMB signal data stream, DAB signal data stream and anolog TV signals data flow from the radio multimedium signal receiver, the content that they are decoded and play wherein to be comprised.It will be appreciated by those skilled in the art that decoder that CMMB signal data stream, DAB signal data stream and anolog TV signals data flow are decoded can be realized by described CPU, also can be decoder (not shown) independently in the playing audio/video.
In described multimedia device, described playing audio/video can be one of mobile phone, PDA(Personal Digital Assistant), MP4 player, handheld device, notebook and desktop computer.
By radio multimedium signal receiver of the present utility model, even holding, the user has plenty of the mobile device that does not have with CMMB standard and DAB operating such, he or she also can watch or listen to video frequency program.And, because radio multimedium signal receiver of the present utility model is low than the cost of removing equipment that possesses wireless digital TV-set and digital broadcasting function, so provide a kind of solution of simple and cheap radio multimedium receiver for the user.
It should be appreciated by those skilled in the art that under the situation that does not break away from scope of the present utility model, can carry out various modifications and distortion the utility model.
Claims (10)
1. radio multimedium signal receiver, it comprises the antenna that is used for receiving the radio multimedium signal, it is characterized in that also comprising:
The CMMB tuner, it is connected to described antenna, and carries out tuning to the CMMB signal that is received by antenna;
The CMMB demodulator, it is connected to described CMMB tuner, and to carrying out demodulation through tuning CMMB signal, and the CMMB signal after the output demodulation;
The DAB tuner, it is connected to described antenna, and carries out tuning to the DAB signal that is received by antenna; And
The DAB demodulator, it is connected to described DAB tuner, and to carrying out demodulation through tuning DAB signal, and the DAB signal after the output demodulation.
2. radio multimedium signal receiver as claimed in claim 1 is characterized in that also comprising:
The anolog TV signals tuner, it is connected to described antenna, and carries out tuning to the anolog TV signals that received by antenna;
The anolog TV signals demodulator, it is connected to described anolog TV signals tuner, and to carrying out demodulation through tuning anolog TV signals, and the anolog TV signals after the output demodulation.
3. radio multimedium signal receiver as claimed in claim 1 or 2 is characterized in that also comprising:
Input/output interface is used for being provided to external equipment from outer equipment receiving data with the data of described radio multimedium signal receiver.
4. radio multimedium signal receiver as claimed in claim 3 is characterized in that described input/output interface is the interface according to USB 2.0 standards.
5. radio multimedium signal receiver as claimed in claim 1 or 2 is characterized in that also comprising power supply.
6. multimedia device, it comprises playing audio/video, and this playing audio/video operates displaying video content and audio content according to the user, and this multimedia device is characterised in that also and comprises:
The radio multimedium signal receiver that is connected with playing audio/video, described radio multimedium signal receiver comprises:
Antenna is used for receiving the radio multimedium signal;
The CMMB tuner, it is connected to described antenna, and carries out tuning to the CMMB signal that is received by antenna;
The CMMB demodulator, it is connected to described CMMB tuner, and to carrying out demodulation through tuning CMMB signal, and the CMMB signal after the output demodulation;
The DAB tuner, it is connected to described antenna, and carries out tuning to the DAB signal that is received by antenna; And
The DAB demodulator, it is connected to described DAB tuner, and to carrying out demodulation through tuning DAB signal, and the DAB signal after the output demodulation;
Wherein, described playing audio/video receives from the signal of described CMMB demodulator and the output of described DAB demodulator and plays.
7. multimedia device as claimed in claim 6 is characterized in that described radio multimedium signal receiver also comprises:
The anolog TV signals tuner, it is connected to described antenna, and carries out tuning to the anolog TV signals that received by antenna;
The anolog TV signals demodulator, it is connected to described anolog TV signals tuner, and to carrying out demodulation through tuning anolog TV signals, and the anolog TV signals after the output demodulation,
Wherein, described playing audio/video receives from the anolog TV signals of described anolog TV signals demodulator output and plays.
8. as claim 6 or 7 described multimedia devices, it is characterized in that described playing audio/video and described radio multimedium signal receiver include:
Input/output interface is used for being provided to external equipment from outer equipment receiving data with the data of described radio multimedium signal receiver,
Wherein, described playing audio/video and described radio multimedium signal receiver are connected to each other by described input/output interface.
9. multimedia device as claimed in claim 8 is characterized in that: described input/output interface is the interface according to USB 2.0 standards.
10. as claim 6 or 7 described multimedia devices, it is characterized in that: described playing audio/video and described radio multimedium signal receiver the two or one of comprise power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201503873U CN201479315U (en) | 2009-05-25 | 2009-05-25 | Wireless multimedia signal receiver and a multimedia device comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201503873U CN201479315U (en) | 2009-05-25 | 2009-05-25 | Wireless multimedia signal receiver and a multimedia device comprising same |
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| Publication Number | Publication Date |
|---|---|
| CN201479315U true CN201479315U (en) | 2010-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009201503873U Expired - Fee Related CN201479315U (en) | 2009-05-25 | 2009-05-25 | Wireless multimedia signal receiver and a multimedia device comprising same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105450952A (en) * | 2015-12-14 | 2016-03-30 | 北京海尔集成电路设计有限公司 | FM (Frequency Modulation), CDR (China Digital Radio) and DTMB (Digital Television Terrestrial Multimedia Broadcasting) receiving terminal and implementing method thereof |
-
2009
- 2009-05-25 CN CN2009201503873U patent/CN201479315U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105450952A (en) * | 2015-12-14 | 2016-03-30 | 北京海尔集成电路设计有限公司 | FM (Frequency Modulation), CDR (China Digital Radio) and DTMB (Digital Television Terrestrial Multimedia Broadcasting) receiving terminal and implementing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20170525 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |