CN2553572Y - Recreational device for supporting network medium issue - Google Patents

Abstract

The utility model relates to a recreational device for supporting network medium issue, comprising a decoder, a hard disk memory and an A/V plate, moreover, the utility model also comprises a network interface, and an identity memory which is used for storing the identity information uniquely corresponding to the user and the recreational device. The recreational device can be connected with a medium supply server through the network interface to certificate the identity, then downloads A/V file from the server, and stores the file in the hard disk; when the user sends out play command, the file can be deciphered and decompressed into an A/V signal by a cipher key of the decoder, then the A/V signal is sent to a corresponding A/V equipment to have a playback. The utility model has the advantages that the recreational device for supporting network medium issue can prevent pirate, therefore the file which is copied to other equipment can not be deciphered and played, and the utility model can not decipher the files which are emitted with illegal means.

Description

A kind of entertainment device of network enabled media distribution

Technical field

The utility model relates to the distribution of audio frequency and video media, more particularly, relates to a kind of entertainment device of network enabled media distribution.

Background technology

Medium described in the utility model mainly are meant Streaming Medias such as the audio frequency that is used for amusement, education or other purposes and video (A/V) data, and existing medium issuing method mainly contains following three kinds:

(1), issue as carrier, for example be used to medium of storing the A/V data etc. by audiotape, video tape, CD, VCD, DVD and other with material object.The advantage of this method be the user can be as required repeat playing at any time.One of its shortcoming is to buy inconvenience, and the user need arrive special place and buy these products; Two be easy damage, particularly CD, VCD, DVD CD, just may wait slightly because of carelessness CD is scratched, influence its play quality; Three be repeatedly to be duplicated by the bootlegger easily, just can duplicate countless parts of pirated VCDs as long as for example buy a VCD; Four be that the product that the user is difficult to when buying purchase the district office is legal copy or piracy, be unfavorable for copyright protection.

(2), download, got in touch with A/V data supplier by network cable, cable of cable TV etc. by set-top box, the A/V data that download user is selected is also play in real time by equipment such as television sets by network machine top box.The advantage of this method is to buy convenient, and the user is home-confined can be bought and want the program seen, and is not easy to be carried out bootlegging by the bootlegger.Shortcoming has 2 points: first speed of download is limited by network condition, influences play quality; It two is can only online in real time to play, can not be after a program request be downloaded repeat playing repeatedly.

(3), by the network download of paying dues, mainly be to utilize computer and A/V data provisioning server to get in touch at present.But user's online in real time is play selected program in this method, also it can be downloaded to hard disk and play afterwards again.But it is reproducible that its shortcoming is downloaded files, is easy to by piracy.

Above-mentioned three kinds of required equipment of method are had nothing in common with each other, and also have a kind of device at present on the market, can pass through the TV tuner received television signal, and by encoder the TV signal compression are processed into the A/V file, are kept in the hard disk then; When the needs playback, read the A/V file by decoder and decode, revert to normal TV signal, output to corresponding A/V playback equipment again and carry out playback.Also have producer on the basis of said apparatus, to increase a DVD driver, when having above-mentioned functions, can be used for the DVD playing back CD.The major defect of these devices is to connect camera cable with received television signal, can not be from network the receiving media file.

As seen, existing distributing method and device or function be limited, manipulate inconvenience, or utilized by the bootlegger easily, and such-and-such shortcoming is always arranged.

The utility model content

In order to overcome the above-mentioned defective of prior art, the utility model provides a kind of entertainment device of network enabled media distribution, when the supplier for the A/V data provides convenience with the user who needs to buy, can also prevent piracy, is beneficial to protection of Intellectual Property Rights.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of entertainment device of network enabled media distribution is provided, comprises being used for the A/V file of encrypting is decrypted, also handles the decoder that is reduced to the A/V signal; Be used to store the harddisk memory of described encryption A/V file; And, be used for handling and output audio and video signal A/V plate; It is characterized in that, also comprise a network interface, and identity store that is used to store with described entertainment device and the unique corresponding identity information of user thereof, described entertainment device can connect the media provision server by its network interface carry out authentication, downloads from described server and encrypts the A/V file and be kept at the described hard disk.

In entertainment device described in the utility model, carry digital signal processor in the described decoder, be the central processing unit of whole entertainment device; Described decoder is connected with a FLASH memory that is used to store its control program; Described A/V plate is communicated by letter with a remote controller, and the control signal of reception user input is also delivered to described decoder and handled.Described A/V plate, identity store and network interface all are connected to described decoder, and described hard disk is connected with described decoder by an ATAPI standard interface.

In entertainment device described in the utility model, also comprising one, to be used for the A/V signal processing be the encoder of A/V file; Also be provided with an A/V signal input on the described A/V plate, can deliver to coder processes by the A/V signal of described A/V plate input is the A/V file, is kept in the described harddisk memory again.

When utilizing entertainment device distribution audio frequency of the present utility model and video data, both keep the advantage of prior art, also overcome the shortcoming of prior art simultaneously, mainly had the advantage of following several respects:

(1), buy conveniently, the user can buy required audio frequency and video data at home; The user downloaded simultaneously audio frequency and video data are kept in the hard disk, and safe and reliable, corrupted or lost possibility is minimum;

(2), do not rely on network speed and quality, sectional is downloaded discontinuously, can access repeatedly from hard disk then and reset;

(3), the file that is stored in the hard disk must could play after being decrypted with unique key of being preserved in the device, as file copy can't be deciphered to other device, can prevent bootlegger's bootlegging; Simultaneously, if user's download is not the file of encrypting according to the key of correspondence, then this device can not be decrypted it, also just can not reach the broadcast purpose, and this makes the bootlegger not have market by the audio frequency and the video data of back door distribution.Utilize this advantage to strengthen protection of Intellectual Property Rights.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:

Fig. 1 is the theory diagram of entertainment device basic configuration in the utility model;

Fig. 2 is the theory diagram of entertainment device expanded configuration in the utility model;

Fig. 3 is as the circuit connection diagram of auxiliary logical circuit in the utility model entertainment device;

Fig. 4 is the circuit connection diagram of MPEG-II decoder in the utility model entertainment device;

Fig. 5 is the memory circuitry connection layout that is used for decoder in the utility model entertainment device;

Fig. 6 is the circuit connection diagram of Ethernet interface in the utility model entertainment device;

Fig. 7 is the digital-to-analog decoding circuit connection layout of A/V plate sound intermediate frequency of the present utility model and vision signal;

Fig. 8 is the analog/digital coding circuit connection layout of A/V plate sound intermediate frequency signal of the present utility model;

Fig. 9 is the analog/digital coding circuit connection layout of vision signal in the A/V plate of the present utility model;

Figure 10 is the circuit connection diagram of MPEG-II encoder in the utility model entertainment device;

Figure 11 is an interface circuit connection layout in the utility model entertainment device.

Embodiment

The principle of the utility model entertainment device as shown in Figure 1, as can be seen from the figure, this device comprises A/V plate 8, harddisk memory 4 and decoder 1, wherein, decoder 1 connects SDRAM6 as its memory.In the utility model, carry digital signal processor (DSP) in the decoder 1, for example can adopt model is the chip of LS500A, this is a MPEG-II decoder, the central processing unit of the whole entertainment device of its double as, and connect a FLASH memory 11, be used to store the required control program of dsp operation.

As can be seen from Figure 1, decoder 1 has connected a network interface 12, and this network interface can adopt the RTL8019 chip, makes entertainment device 21 of the present utility model can connect Ethernet.Certainly, also can adopt other network interface chip to connect private network, cable television network, ADSL (asynchronous digital subscriber line) or other wide area network.Decoder 1 has also connected an identity store 6 that is used to store identification (ID) information, and this memory generally adopts EEPROM, when the original production of entertainment device, is used to store its unique device numbering; When after finishing initial log on the server, also storage and this device and the unique corresponding key of user information data thereof.

Wherein, A/V plate 8 is used for audio frequency and vision signal are handled, and mainly is that the digital signal that decoder 1 is sent here is converted to analog signal in the utility model, and perhaps analog signal conversion is a digital signal, delivers to corresponding A/V equipment again and plays.On the A/V plate, be provided with infrared interface, can communicate by letter, receive the control signal of user, and deliver to decoder 1 and handle to carry out corresponding operation by the remote controller input with Infrared remote controller 9.Because decoder 1 has the function of central processing unit in this device, so A/V plate 8, identity store 6 and network interface 12 all are attached thereto, controlled by it; In addition, hard disk 4 also is connected with decoder 1 by an ATAPI standard interface 3.

Utilize entertainment device 21 of the present utility model, the user can be by its network interface 12 login media provision servers 20, after authentication is legal, can downloads the A/V file of encrypting and are kept at the hard disk 4 from server.During playback, the file that the user will play by Infrared remote controller 9 selections, this document is delivered to decoder 1 from hard disk 4 through ATAPI interface 3; Decoder is decrypted this document according to the key in the identity store 6, reverting to normal A/V file, then it is processed into common A/V signal, for example is common A/V signal with the MPEG-II file decoding, output to corresponding A/V equipment 22 through A/V plate 8, realize playback.

More than be basic configuration of the present utility model, can also increase other functional module on this basis to expand its function.Expanded configuration at first is to have increased by one to be used for the A/V signal processing be the encoder 2 of A/V file as shown in Figure 2; Also be provided with simultaneously an A/V signal input (A/V OUT) on A/V plate 1, can deliver to coder processes by the A/V signal of A/V plate input is the A/V file, is kept in the harddisk memory 4 again.Because it is non-encrypted A/V file that encoder 2 is handled the file that generates, so also need the function of extension decoder 1 in the utility model, making it can be the A/V signal with non-encrypted A/V file process, outputs to corresponding A/V equipment 22 through A/V plate 8, realizes playback.

As can be seen from Figure 2, also be provided with a TV tuner (TV TUNER) 10 in this device, the control end of this TV tuner 10 connects decoder 1, input can connect cable of cable TV connects A/V plate 8 with input TV signal, output A/V signal input.TV signal after tuning is delivered to encoder 2 compressions through A/V plate 8, decoder 1 and is processed into the A/V file, delivers to hard disk 4 and preserves through decoder 1, ATAPI interface 3 then.In the utility model, the capacity of hard disk can design according to user's needs, for example can adopt the 40G hard disk or adopt more jumbo hard disk.

In order to further expand the function of this device, as shown in Figure 2, also be provided with a DVD driver 13, this DVD driver is connected with decoder 1 by ATAPI standard interface 3, can read CD, VCD, MP3, reach the DVD CD, their A/V file is delivered to decoder handle, deliver to A/V equipment through the A/V plate again and play.

Fig. 3 to Figure 11 is in the preferred embodiment of the present utility model, the circuit connection diagram of entertainment device, wherein:

Fig. 3 is the auxiliary logical circuit circuit diagram, and chip U501 is a CPLD (CPLD), and what adopt in the utility model is the EPM7128TC100 chip;

Fig. 4 is the circuit connection diagram of MPEG-II decoder, and chip U601 is a MPEG-II decoding chip that carries DSP, and that adopt in the utility model is LS500A;

Fig. 5 is the memory circuitry connection layout of decoder, and chip U701 is a same SDRAM, and what adopt in the utility model is 986432;

Fig. 6 is the circuit connection diagram of Ethernet interface, and chip U901 has the MAC+PHY function, and that adopt in the utility model is RTL8019AS;

Fig. 7 is the digital-to-analog decoding circuit connection layout of A/V plate sound intermediate frequency and vision signal, is used for digital signal decoding is processed into analog signal, and that chip U801 adopts is CS4956;

Fig. 8 is the analog/digital coding circuit connection layout of A/V plate sound intermediate frequency signal, is used for the analog signal encoding process is become digital signal;

Fig. 9 is the analog/digital coding circuit connection layout of vision signal in the A/V plate, is used for the analog signal decoding processing is become digital signal;

Figure 10 is the circuit connection diagram of MPEG-II encoder, and chip U301 is a MPEG-II coding chip, and that adopt in the utility model is SM2288;

Figure 11 is an interface circuit connection layout in the novel entertainment device, comprises power interface (POWERPORT) N101, display screen interface (VFD FRONT PANEL) CON102, infrared interface (IRPORT) CON103, and A/V plate expansion interface CON104.

Utilize entertainment device of the present utility model as follows by the flow process of network distribution medium, certainly need in server, store the A/V data that provides by each supplier in advance before this, mainly be the A/V file, the file of MPEG-I, MPEG-II, MPEG-IV or other form for example; All legal device numberings that also need in addition entertainment device manufacturer is produced are stored in the server in advance:

1, initial log

After the user has bought entertainment device 21 of the present utility model, initial log server 20, its numbering is sent to server carry out the authentication of device legitimacy, judge whether its device numbering is legal, whether the device numbering of just seeing in the server to be preserved has one to number identical with the device of receiving, if illegal, then beam back error message to entertainment device by server; If device numbering authentication is legal, then notify the user to import to withhold account number and user's out of Memory, for example name, address, phone etc., the account number of withholing here can be user's stored value card account number or user's bill of exchange account number; Generate a unique corresponding key of importing with this entertainment device numbering and user of data by server then, this key is only effective to this device and this user; Then the key that generates is kept in the server 20, is kept in its identity store with passing entertainment device 21 back at present; That is to say, stored in each entertainment device one with not different unique keys, then preserved key one to one in the server with the device of all legal logins and user thereof.

2, file is downloaded

Finish and pacify when beginning to login afterwards again logon server, entertainment device sends to the legitimacy authentication that described server carries out key with the key of its preservation, judge whether the key of being received is legal, the key of just seeing in the server to be preserved whether have one identical with the key of receiving, if key authentication is illegal, then beam back error message to entertainment device by server; If key authentication is legal, then the user can send download request to server by entertainment device, and server is encrypted the required A/V file of user according to its key of receiving, will pass to entertainment device under the A/V file of encrypting again; Collect this to the user then and download required expense, can also can use from user's the required mail downloading charge usefulness of stored value card account number deduction during concrete operations from collecting bank's required mail downloading charge of account number deduction of user; Entertainment device with its encryption A/V file storage of receiving in its hard disk 4.

3, the playback of storage file

After user's input is imported play instructions by Infrared remote controller 9, decoder 1 in the entertainment device is decrypted according to the encryption A/V file of its key to user's appointment, again it is de-compressed into common A/V signal, and the A/V signal is delivered to corresponding A/V equipment (for example television set, stereo set etc.) carry out playback.

The major advantage of utilizing the utility model device to carry out network media distribution is and can strengthens protection of Intellectual Property Rights.At first, the file that is stored in the hard disk must could be play after being decrypted with unique key of being preserved in the device, can prevent bootlegger's bootlegging like this, can't use because copy to miscellaneous equipment.Secondly, if user's download is not the file of encrypting according to the key of being preserved in its device, then this device can not be decrypted it, also just can not reach the broadcast purpose, this makes the bootlegger not have market by the audio frequency and the video data of back door distribution, stops piracy from another aspect.

Because of the decoder in the utility model 1 can be the A/V signal with non-encrypted A/V file process, output to corresponding A/V equipment 22 through A/V plate 8, realize playback.So the audio frequency of those open copyrights and video data (song that for example surpasses the copyright protection time limit); the media provision server is when passing the data of user's request down; with regard to not needing the A/V file of these open copyrights is encrypted, but it is passed to the user under directly free.

Claims (6)

1, a kind of entertainment device of network enabled media distribution comprises:

Be used for the A/V file of encrypting is decrypted, also handles the decoder that is reduced to the A/V signal; Be used to store the harddisk memory of described encryption A/V file; And, be used for handling and output audio and video signal A/V plate;

It is characterized in that, also comprise a network interface, and identity store that is used to store with described entertainment device and the unique corresponding identity information of user thereof, described entertainment device can connect the media provision server by its network interface carry out authentication, downloads from described server and encrypts the A/V file and be kept at the described hard disk.

2, entertainment device according to claim 1 is characterized in that, carries digital signal processor in the described decoder, is the central processing unit of whole entertainment device; Described decoder is connected with a FLASH memory that is used to store its control program; Described A/V plate is communicated by letter with a remote controller, and the control signal of reception user input is also delivered to described decoder and handled.

3, entertainment device according to claim 2 is characterized in that, described A/V plate, identity store and network interface all are connected to described decoder, and described hard disk is connected with described decoder by an ATAPI standard interface.

4, entertainment device according to claim 3 is characterized in that, described decoder can be the A/V signal with non-encrypted A/V file process also, and also comprising one, to be used for the A/V signal processing be the encoder of A/V file; Also be provided with an A/V signal input on the described A/V plate, can deliver to coder processes by the A/V signal of described A/V plate input is the A/V file, is kept in the described harddisk memory again.

5, entertainment device according to claim 4, it is characterized in that, also comprise a TV tuner, the control end of described TV tuner connects A/V signal input, the input that described decoder, output connect described A/V plate can connect tv line with input TV signal; Can become the A/V file by described coder processes by the TV signal after the described TV tuner processing, and be kept in the described hard disk.

6, according to claim 4 or 5 described entertainment devices, it is characterized in that, also comprise a DVD driver that is connected with described decoder by described ATAPI standard interface.

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