CN200976634Y

CN200976634Y - Digital media player for receiving DVB data broadcasting

Info

Publication number: CN200976634Y
Application number: CNU2006201486215U
Authority: CN
Inventors: 祝万昌; 苏国庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-10-16
Filing date: 2006-10-16
Publication date: 2007-11-14
Anticipated expiration: 2016-10-16

Abstract

The utility model relates to a digital media player receiving DVB data broadcasting. The utility model belongs to a digital media transmission field and comprises a CPU module arranged at a player shell internal circuit board, and a decoder module, a DVB data radio receiving module, a wireless internet module, a data storage module and a smart card interface module, which are connected with the CPU module. The utility model is characterized in that the DVB data radio receiving module is directly connected with the CPU module by a data interface. A data interface of the wireless internet module is also directly connected with the CPU module. The CPU module is directly connected with a random storage, a flash memory, a network interface and a USB2.0 interface. The utility model can receive real-timely high-speedily digital media document through the DVB data broadcasting transmission and real-timely store the digital media document.

Description

Receive the Digital Media player of DVB data broadcasting

Technical field

The utility model belongs to the Digital Media transmission field, specially refers to a kind of Digital Media player of the DVB of reception data broadcasting.

Background technology

Development along with digital television broadcasting (DVB) technology and digital multimedia technology, by more and more with TS (transport stream is followed ISO/IEC 13818-1 TransportStream standard) for the application of carrier high-speed transfer digital media file (particularly digital video file) in the data broadcasting mode.The typical case of this pattern uses and will be stored in the hard disk by the digital media file that DVB data broadcasting mode transmits at a high speed exactly, by software mode or hardware mode these digital media file decodings is play then.At such application model, present technology and product also exist following defective and deficiency, for example:

(1) digital media file that transmits at a high speed by DVB data broadcasting mode, the most general technology and application at present is: adopt and insert a DVB data broadcasting receiving card on the pci bus of PC (personal computer) machine, receive the digital media file that transmits by the DVB data broadcasting, and the digital media file that receives is stored in the PC hard disk, on PC, play these digital media files by using various playout software.This application model is seen technically, and the efficient of Data Receiving depends on the CPU of PC (CPU) performance; On using, this is the Digital Media broadcast mode based on PC fully, uses scene and scope to be restricted, can not be as popularization and application.On the other hand, the user is in order to pursue audio visual effect, more wish on television set, to see these Digital Medias, realize that the content on the PC plays on television set, can involve again other conversion equipment or PC on high-grade display card is installed, will bring new problem, also make popularize and application is restricted.

(2) recent; special reception on some specialized markets, also occurs and play the Digital Media player of the digital media file that transmits by DVB data broadcasting mode; there is a DVB data broadcast receiving apparatus this player inside; be used for receiving the digital media file of DVB data broadcasting; but existing these players all do not have the device of wireless access the Internet Internet; do not possessing the place that wired Internet inserts; application function is restricted; particularly can not solve DRM (digital copyright protecting, DigitalRight Management) Copyright Protection by Internet in any place.

(3) in Digital Television market, the digital TV set-top box that has hard disk is also arranged, but this series products is not because comprise the DVB data broadcast receiving apparatus, so can not receive and store digital media file by DVB data broadcasting high-speed transfer, and can only digital television program recording, defectiveness on function.

In sum, current techniques and product all have defective in various degree, are further improved, develop.

Summary of the invention

The utility model technical issues that need to address are, at exist in the prior art such as Data Receiving efficient, depending on the PC performance uses scene and scope to be restricted, application function such as can not give full play at many imperfection parts, in order to overcome these deficiencies, just need to improve again and exploitation.

The purpose of this utility model provides a kind of Digital Media player of the DVB of reception data broadcasting, and this is a kind of brand-new Digital Media player.

In order to realize order of the present utility model, it is to adopt following technical scheme: a kind of Digital Media player of the DVB of reception data broadcasting, comprise the CPU module that places on the player casing internal circuit board, and the decoder module that is connected with it, DVB data broadcasting receiver module, Wireless Internet access module and data memory module, intelligent card interface module, it is characterized in that, described DVB data broadcasting receiver module directly connects central processing module by data-interface, and the own data-interface of Wireless Internet access module also is directly connected to CPU module; CPU module directly connects storage and flash memory at random, and network interface and USB2.O interface.

Select for use situation as follows about each module in the such scheme:

Central processing unit: the CPU module is 101, and this is the core of this player device, can adopt general CPU (central processing unit) chip; Its role is to whole digital medium player control.This cpu chip can select to adopt X86 system chip, also can adopt ARM system chip or adopt MIPS system chip or the cpu chip of employing other types.

Decoder module 102, adopt a kind of existing digital decoding chip to constitute, this chip internal can include MPEG1/2/4, H.264, hardware decoders such as WMV9, AVS, JPEG2000, also comprise that analog audio-video and digital audio/video handle and output interface hardware, be connected directly to CPU module (101).The effect of this module is, will and send the digital media data broadcast of decoding by CPU control, directly exports analog audio-video signal or digital audio-video signal to display devices such as television set or projectors.The audio frequency and video port of its output comprises at least: CVBS (composite video signal) output interface, Y/C light tone sort interface, YPbPr component output interface and HDMI (HDMI (High Definition Multimedia Interface), High DefinitionMultimedia Interface) interface.This chip can adopt the chip with hardware decoder, also can adopt the decoding of DSP (digital signal processor, Digital Signal Processing) chip.

What particularly point out is, based on technique known, CPU module and decoder module have had SOC (System on Chip/SoC, the System On Chip) chip that much becomes one now, and this device can adopt the up-to-date SOC chip that includes CPU and decoder so that simplified system constitutes.

DVB data broadcasting receiver module 103, adopt existing STB (set-top box, Set TopBox) SOC chip, also can adopt special-purpose DVB data broadcasting receiving chip, the chip front is connected with electronics high-frequency tuner Tuner, the chip back is connected with data-interface, is connected to CPU module 101 by data-interface.The effect of this module is, receives the DVB data broadcasting signal under the control of CPU in real time, by the Tuner in the module, the DVB signal is become TS stream; By the SOC chip this TS being flow to line data and handle, finish the DMUX demultiplexing, PID filters, separates multinomial work such as MPE data encapsulation, will be that the data extract of carrier is come out with TS stream, deliver to the CPU module.

Tuner in this module is used for receiving the signal of DVB, and it can become TS with the DVB signal transition, and the chip that is transferred to the back again carries out data processing.This Tuner can be the type of DVB-C, and the coaxial cable that can connect the FHC network receives the data broadcasting of DVB-C; This Tuner also can be the type of DVB-S, can connect the data broadcasting that satellite earth antenna receives DVB-S; Its Tuner can also be the type of DVB-T (or CDMB-T), can also connect the data broadcasting that the surface wave reception antenna receives DVB-T (or CDMB-T).The data that above DVB data broadcasting transmits are to be the data of carrier with TS, and these data can be the IP packets of TS, PS or MPE.

This module directly links to each other with CPU 101 by data-interface, and this data-interface can be Ethernet interface or USB2.0 interface.

Wireless Internet access module 104 adopts the embedded radio on-line module of existing mobile communication, by the data-interface that has had in this module, directly connects CPU module 101.This module need be plugged the mobile phone intelligent card of buying from mobile communication carrier (can buy the mobile phone card of China Mobile or CHINAUNICOM in China), inserts Internet by the wireless Internet access pattern and transmits data.The effect of this module is, the wireless Internet services of the covering the whole of China that provides by mobile operator, can make the digital medium player that includes this module be connected to a special site for service platform, the authentication, the charge information that come transmitting drm copyright decryption information and player is used by the wireless network to bidirectionally data channel.

This Wireless Internet access module can adopt the GPRS Wireless Internet access module of GSM network, also can adopt the CDMA 1X Wireless Internet access module of cdma network.

This module directly links to each other with CPU 101 by the data-interface of self, and this data-interface can be a USB interface, also can be the serial communication RS-232 interface, or pcmcia interface.

Data memory module 105, comprise large-capacity storage media and comprise data-interface, be directly connected to CPU module 101 by this data-interface, its role is to, under the control of CPU module 101, this module can be kept at the data that DVB data broadcasting receiver module 103 receives on the large-capacity storage media.The large-capacity storage media of this module can be a hard disk, also can be big capacity Flash; Its data-interface can be ide interface, also can be USB2.0 interface or SATA interface.On the other hand, the external USB hard-disk cartridge that connects by the USB2.0 interface also can be used as the data memory module 105 of this digital media player.

Intelligent card interface module 106 is interface modules that meet the ISO/IEC7816-3 standard, includes intelligent card socket, is directly connected to CPU module 101.Its role is to this interface module and can insert a smart card that meets 7816 standards, can the encrypting storing subscriber identity information in this smart card, the daily record of work of DRM copyright protection information, customer charging information and this digital media player etc.

Random asccess memory SDRAM 107, are to be made of the random asccess memory chip, are connected directly to CPU module 101, its role is to, and support CPU work, for CPU provides interim memory space, store the program, data, intermediate object program of current use etc.

Flash memory Flash 108 is to be made of the Flash memory chip, is connected directly to CPU module 101, its role is to, support CPU work, the program of storing this digital media player is also stored the parameter set at different application occasion and different usings method etc. simultaneously.

Ethernet Ethernet interface 109 is to be made of common Ethernet chip, is connected directly to CPU module 101, its role is to, and for this digital media player provides an Ethernet interface, makes it can easily be connected to wired internet.

USB2.0 interface 110, be to constitute, be connected directly to CPU module 101, its role is to by common USB 2.0 interface chips, for this digital media player provides an auxiliary data transmission interface, can transmit digital media file etc. to the notebook data media player by this interface.Make this digital media player under the situation that does not have DVB signal and Internet to insert as auxiliary data transmission means, transmit data by the USB2.0 interface and also can use, improved the adaptability of this device.

What particularly point out is, based on technique known, CPU module and decoder module have had the SOC chip that becomes one now, and a lot of chips have comprised the USB2.O interface.

Remote controller receives and front panel control module 111, be to constitute, be connected directly to CPU module 101, its role is to receive the signal of remote controller and the signal of front panel keys by common single-chip microcomputer and infrared receiver spare, with signal processing is numeric data code, delivers to CPU module 101.

Power module 112 is this digital media player power supply.

Digital Media of the present utility model player can reach following beneficial effect:

1. to receive what transmit by the DVB data broadcasting be the digital media file of carrier with TS to real time high-speed;

2. can be with in the jumbo storage medium of digital media file real-time storage in this device that receives;

3. can this device be connected to some network service platforms of setting up specially by Internet by the Wireless Internet access module of mobile communication technology, carry out authenticating user identification, obtain the DRM deciphering of digital media file and authorize broadcast information, and user's playing digital medium is chargeed;

4. can read digital media file from storage medium through after authenticating, the DRM protection is untied in control through CPU, and by decoder decode playing digital medium file, and the output audio-video signal is to display device;

5. be the charge information of watching the legal digital media file of DRM protection by smart card preservation user identity sign indicating number ID and user.

Description of drawings

Fig. 1 receives the Digital Media player profile schematic diagram of DVB data broadcasting;

Formation of this player device of Fig. 2 and annexation theory diagram.

Embodiment

With reference to Fig. 1, expression the utility model receives the Digital Media player profile schematic diagram of DVB data broadcasting, has circuit board 1 in the figure mesochite, player casing 2, and it has front panel 2.1 and remote controller 2.2.

With reference to Fig. 2, the formation and the annexation theory diagram of expression player.

Comprise among the figure: central processor CPU module 101, decoder module 102, DVB data broadcasting receiver module 103, Wireless Internet access module 104, data memory module 105, intelligent card interface module 106, random asccess memory SDRAM 107, flash memory Flash 108, Ethernet Ethernet interface 109, USB2.0 interface 110, remote controller and front panel control module 111, power module is 112.

In preferential embodiment of the present utility model, the realization of central processor CPU module 101 and decoder module 102 can be selected the EM8620L chip solution, and this is CPU and decoder one SOC chip.

In preferential embodiment of the present utility model, DVB data broadcasting receiver module 103 can adopt the USB2.0 data-interface that this module is connected in the system.

We adopt the SIM300C module Wireless Internet access module 104, adopt 232 data-interfaces to connect this module to described EM8620L system.

Data memory module 105 we to adopt hard disk be memory, be directly connected in the described system by ide interface.

We adopt 8051 single-chip microcomputer design modules remote controller and front panel control module 111, and this module is connected in the described system by 232 interfaces.

The signal of this player can be the DVB signal from the DVB-C cable television network, also can be the DVB signal from the satellite data broadcasting of the DVB-S of satellite earth antenna, can also be the signal from DVB-T (or CDMB-T) the ground data broadcasting of surface wave digital TV antenna.

The core of this digital media playing apparatus is CPU 101 and decoder 102, it is data carrier, that transmit in DVB data broadcasting mode that CPU 101 control DVB data broadcasting receiver modules 103 receive with TS stream, these data are reduced to data in DVB data broadcasting receiver module 103, deliver to CPU 101, CPU 101 delivers to data data memory module 105 again, finishes Data Receiving and storage.

During this device playing digital medium file, CPU 101 reads the data of preservation from data memory module 105; CPU 101 control Wireless Internet access modules 104 are connected through the internet to a service platform of setting up specially, obtain the DRM copyright protection decryption information of digital media file; CPU 101 control intelligent card interface module 106 is obtained user's ID authentication information and charge information from the smart card that is inserted on this module; CPU 101 handles according to above-mentioned information, checking by after data are delivered to decoder 102 broadcast of decoding; After the decoding audio-video signal is sent to display device.Vision signal can be the analog audio-video signal, also can be digital audio-video signal; Display device can be a television set, also can be projecting apparatus.

Claims

1. Digital Media player that receives the DVB data broadcasting, comprise the CPU module that places on the player casing internal circuit board, and the decoder module that is connected with it, DVB data broadcasting receiver module, Wireless Internet access module and data memory module, intelligent card interface module, it is characterized in that, described DVB data broadcasting receiver module directly connects central processing module by data-interface, and the own data-interface of Wireless Internet access module also is directly connected to CPU module; CPU module directly connects storage and flash memory at random, and network interface and USB2.0 interface.

2. a kind of Digital Media player that receives the DVB data broadcasting according to claim 1 is characterized in that, the described data-interface that connects DVB data broadcasting receiver module and CPU module is Ethernet interface or USB2.0 interface.

3. a kind of Digital Media player that receives the DVB data broadcasting according to claim 1 is characterized in that, the data-interface that connects Wireless Internet access module and CPU module is a USB interface, also can be RS-232 interface, or pcmcia interface.

4. according to claim 1 and 2 described a kind of Digital Media players that receive the DVB data broadcasting, it is characterized in that, described DVB data broadcasting receiver module adopts special-purpose DVB data broadcasting receiving chip, is connected with electronics high-frequency tuner Tuner before the chip, and the chip back is connected with data-interface.

5. according to claim 1,2 and 4 described a kind of Digital Media players that receive the DVB data broadcasting, it is characterized in that the special-purpose DVB data broadcasting receiving chip in the described DVB data broadcasting receiver module can be existing set-top box SOC chip.

6. according to claim 1 and 3 described a kind of Digital Media players that receive the DVB data broadcasting, it is characterized in that described Wireless Internet access module is the GPRS on-line module of GSM network, or the CDMA 1X on-line module of cdma network.

7. a kind of Digital Media player that receives the DVB data broadcasting according to claim 1 is characterized in that, the large-capacity storage media that is comprised in the data memory module can be hard disk or big capacity Flash flash memory.

8. according to claim 1 and 7 described a kind of Digital Media players that receive the DVB data broadcasting, it is characterized in that the data-interface that described data memory module is connected with CPU is an ide interface, or USB2.0 interface or SATA interface.

9. a kind of Digital Media player that receives the DVB data broadcasting according to claim 1 is characterized in that described intelligent card interface module comprises the intelligent card socket that meets the ISO/IEC7816-3 standard.