CN1870477A - Digital broadcasting reception terminal and method for processing digital broadcasting data using the same - Google Patents
Digital broadcasting reception terminal and method for processing digital broadcasting data using the same Download PDFInfo
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- CN1870477A CN1870477A CNA2006100830597A CN200610083059A CN1870477A CN 1870477 A CN1870477 A CN 1870477A CN A2006100830597 A CNA2006100830597 A CN A2006100830597A CN 200610083059 A CN200610083059 A CN 200610083059A CN 1870477 A CN1870477 A CN 1870477A
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- digital broadcast
- broadcast data
- data
- demodulation
- digital broadcasting
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- 238000000034 method Methods 0.000 title claims description 17
- 238000012545 processing Methods 0.000 title claims description 3
- 238000003672 processing method Methods 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 16
- 238000010295 mobile communication Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 230000005236 sound signal Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/4424—Monitoring of the internal components or processes of the client device, e.g. CPU or memory load, processing speed, timer, counter or percentage of the hard disk space used
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Databases & Information Systems (AREA)
- Circuits Of Receivers In General (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
A digital broadcasting reception terminal and a digital broadcasting data processing method using the same can reduce the overhead increase of the operation system as well as the use of resources. The digital broadcasting reception terminal includes a digital broadcasting receiver for receiving digital broadcasting data; a demodulator for demodulating the received digital broadcasting data and outputting a reporting signal when the digital broadcasting data have been demodulated up to a preset capacity, wherein the reporting signal reports demodulation of the digital broadcasting data up to the preset capacity; and a control unit for reading and outputting the demodulated digital broadcasting data when the reporting signal has been output from the demodulator.
Description
Technical field
The present invention relates to digital broadcasting, more particularly, relate to the method for a kind of digital broadcast receiving terminal and this terminal processes digital broadcast data of use.
Background technology
Usually, digital broadcasting refers to so a kind of broadcasting: it replaces traditional analog broadcasting, provides higher screen quality, more high sound quality and the more service of high quality-of-service to the user.
According to the development of recent digital broadcasting technology and mobile communication technology, make the user when moving, to watch the digital broadcast service of digital broadcasting more and more to be paid close attention to.Particularly, use DMB (DMB) service of mobile communication terminal to obtain more concern.DMB service refers to a kind of like this broadcast service: even it makes the user when moving, vehicle-mounted receiver that also can be by isotropic receiving antenna is housed or user-portable receiver are watched the various multimedia broadcastings via a plurality of channels.
Fig. 1 illustrates the example of the structure of the system that realizes digital broadcast service.
With reference to Fig. 1, realize that the system of digital broadcast service comprises: data dispatching centre 10, satellite 20 and receiving system (for example, mobile communication terminal 30, car receiver 40, family's receiver 50 etc.).Data dispatching centre 10 compression and modulation digital multi-medium datas (it comprises image, voice-and-data signal) send it to satellite 20 then.Satellite 20 receives and amplifies signal from data dispatching centre 10, and it is carried out frequency translation, then the signal after the conversion is sent it back ground.Receiving system 30,40 and 50 receives, and demodulation also decompresses from the signal of satellite 20, then the primary signal of output recovery.
Because the fast development of aforesaid digital broadcast service technology is even the user also can watch the clearly digital broadcasting that does not have noise in the vehicle of high-speed mobile.
In order to realize the digital broadcasting receiving function, mobile communication terminal for example, outside the mobile station modems (MSM), also is equipped with independent multimedia chip except the communication modem chip that is used to control mobile communication function is housed, for example, and the DM270 chip.Therefore, in the mobile communication terminal of multimedia chip was housed, the communication modem chip was carried out mobile communication function, and multimedia chip combine digital broadcast receiving function, thereby the interference between two chips may take place hardly.
The conventional method of being handled digital broadcast data by the digital broadcast receiving terminal with two chips is as follows.
At first, digital broadcast receiving terminal receives and the demodulation digital broadcast data.Then, digital broadcast receiving terminal reads the digital broadcast data of demodulation according to polling scheme (polling scheme) and is voice data and video data with described data parsing.Again then, digital broadcast receiving terminal is by the data of display unit and loud speaker output parsing.
Simultaneously, as nearest be equipped with support digital broadcast receiving function the communication modem chip (for example, MSM6550) such in the terminal, there is no need independent multimedia chip is installed on each terminal, use single chip execution mobile communication function and digital broadcasting receiving function to become feasible.
In the former terminal, because independent multimedia chip is installed in each terminal, polling scheme does not have big influence to mobile communication function.Yet, according to the single-chip solution, promptly, (for example has single chip, MSM 6550) digital broadcast receiving terminal in, can predict:, must use a large amount of resources, and will increase the expense of operating system (OS) thus in order to carry out mobile communication function and digital broadcasting receiving function simultaneously.
Summary of the invention
Therefore, carry out the present invention to solve the above-mentioned problems in the prior art, the digital broadcast data processing method that the object of the present invention is to provide a kind of digital broadcast receiving terminal and use this terminal, it can reduce the increase in overhead of operating system, can also reduce the use of resource.
Another object of the present invention is to the digital broadcast data processing method that a kind of digital broadcast receiving terminal is provided and uses this terminal, it can receive and effectively handle digital broadcast data.
In order to realize these and other objects, a kind of digital broadcast receiving terminal is provided, comprising: digit broadcasting receiver is used for receiving digital broadcast data; Demodulator is used for the digital broadcast data of demodulate reception, and when digital broadcast data is demodulated to predetermined volumes reporting signal, wherein, the demodulation of described report signal report digital broadcast data arrives predetermined volumes; And control unit, be used for when from the demodulator reporting signal, reading and export the digital broadcast data of demodulation.
Preferably, control unit comprises: the memory of the digital broadcast data that storage is read from demodulator, the display unit of the video data that the audio process of the voice data that output is resolved and output are resolved.
According to a further aspect in the invention, provide a kind of method by digital broadcast receiving terminal processing digital broadcast data, this method comprises: receive and the demodulation digital broadcast data; When digital broadcast data is demodulated to predetermined volumes, read and store the digital broadcast data of demodulation; And the digital broadcast data of output storage.
Description of drawings
By the detailed description of carrying out below in conjunction with accompanying drawing, above and other objects of the present invention, characteristics and advantage will become apparent, wherein:
Fig. 1 illustrates the example of the structure of the system that realizes digital broadcast service;
Fig. 2 is the block diagram of structure that the transmitter section of typical digital broadcast receiving system is shown;
Fig. 3 is the block diagram according to digital broadcast receiving terminal of the present invention;
Fig. 4 is the more detailed block diagram that several parts in the digital broadcast receiving terminal shown in Figure 3 are shown; And
Fig. 5 is the flow chart that illustrates according to the operational processes of digital broadcast receiving terminal of the present invention.
Embodiment
Below, the preferred embodiments of the present invention are described with reference to the accompanying drawings.In the following description, when and the detailed description of the known function here and configuration when making that theme of the present invention is not known, will omit these detailed descriptions.
Fig. 2 is the block diagram of structure that the transmitter section of typical digital broadcast receiving system is shown.
The transmitter section of typical digital broadcast receiving system comprises: audio signal encoder 110, picture signal coder 120, transport stream (TS) multiplexer 130, modulator 140 and radio frequency (RF) unit 150.Audio signal encoder 110 is encoded to the simulated audio signal 102 of input voice data and compresses described voice data.Picture signal coder 120 is encoded to the analog picture signal 104 of input view data and compresses described view data.
Fig. 3 is the block diagram according to digital broadcast receiving terminal of the present invention, and Fig. 4 is the more detailed block diagram that several parts in the digital broadcast receiving terminal shown in Figure 3 are shown.But suppose described digital broadcast receiving terminal combine digital broadcast receiving function and mobile communication function.The preferably operation of MSM chip (it is as the communication modem chip) control figure broadcast receiving apparatus 200.Therefore, suppose in the present embodiment that digital broadcast receiving terminal 200 is equipped with communication modem chip (MSM 6550).
Digital broadcast receiving terminal 200 comprises: digit broadcasting receiver 210, demodulator 220, memory 230, key input unit 240, control unit 250 (for example, MSM 6550), audio process 260 and display unit 270.
When digital data stream is demodulated to predetermined volumes, for example, separated timing when 12 TS bags (12 * 188 byte), demodulator 220 will report that the report signal of described demodulation exports control unit 250 to.That is, when the digital broadcast data (that is, digital data stream) of predetermined volumes has been stored in the DPRAM data field 225, demodulator 220 will report that the report signal of described storage exports control unit 250 to.
Simultaneously, it should be noted that: as not fixing, and only be about example of the present invention by the predetermined volumes (for example, 12 bags) of the condition of demodulator 220 reporting signal.
The necessary various information of operation of memory 230 storage control figure broadcast receiving apparatus 200.Key input unit 240 comprises: character keys, numerical key and various function key, and will import corresponding key input signal with user's key and export control unit 250 to.
The general operation of control unit 250 (for example, MSM 6550) control figure broadcast receiving apparatus 200.As shown in Figure 4, control unit 250 comprises: TS resolver 251, circular buffer 253, video-frequency basic flow (ES) buffer 255 and audio ES buffer 257.
When demodulator 220 receives report signal, control unit 250 reads the digital broadcast data in the DPRAM data field 225 that is stored in demodulator 220, and with the storage that reads in circular buffer 253.Circular buffer 253 can be included in the memory 230.The capacity of circular buffer 253 is big more, can become big more as the predetermined volumes (for example, 12 bags) by the condition of demodulator 220 reporting signal.
TS resolver 251 will be stored in digital broadcast data in the circular buffer 253 and resolve to voice data and image (promptly, video) data, the voice data of parsing and video data are exported by audio process 260 and display unit 270 after through audio ES buffer 257 and video ES buffer 255.
Simultaneously, when system was unstable, although there is demodulated data, demodulator 220 meetings can't reporting signal.In this case, preferably after the preset time section, read the digital broadcast data of demodulation and with the storage that reads in circular buffer 253.
Fig. 5 is the flow chart that illustrates according to the operational processes of digital broadcast receiving terminal of the present invention.
With reference to Fig. 3 to Fig. 5, control unit 250 receives the RF signal (step S110) that comprises digital broadcast data by digit broadcasting receiver 210.
When from demodulator 220 reporting signal, control unit 250 determines that digital broadcast data has been stored in predetermined volumes, read the digital broadcast data of demodulation from DPRAM data field 225, and with the storage (step S140) in circular buffer 253 that reads.
Although there is demodulated data, demodulator 220 can't the situation of reporting signal under, control unit 250 can after the preset time section, read the digital broadcast data of demodulation and with the storage that reads in circular buffer 253.
The digital broadcast data that control unit 250 will be stored in the circular buffer 253 resolves to voice data and video data (step S150).Control unit 250 is decoded as simulated audio signal and analog video signal with the digital broadcast data (that is, voice data and video data) of resolving, and exports the signal of demodulation by audio process 260 and display unit 270.
According to aforesaid the present invention, when the digital multi-medium broadcasting receiving terminal that does not have independent multimedia chip receives and handle digital broadcast data, can reduce the growth of the expense aspect of operating system, and reduce the use of resource.
Although with reference to some preferred embodiment of the present invention, particularly illustrate and described the present invention with reference to the digital broadcast receiving terminal that can carry out mobile communication function and digital broadcasting receiving function, but it should be appreciated by those skilled in the art that: under the situation that does not break away from the spirit and scope of the present invention that are defined by the claims, can carry out the change on various forms and the details.
Claims (7)
1, a kind of digital broadcast receiving terminal comprises:
Digit broadcasting receiver is used for receiving digital broadcast data;
Demodulator is used for the digital broadcast data of demodulate reception, and when digital broadcast data is demodulated to predetermined volumes, reporting signal, wherein, the demodulation of described report signal report digital broadcast data arrives predetermined volumes; And
Control unit is used for reading and export the digital broadcast data of demodulation when from the demodulator reporting signal.
2, digital broadcast receiving terminal as claimed in claim 1, wherein, control unit comprises the circular buffer that is used to store the digital broadcast data that reads from demodulator.
3, digital broadcast receiving terminal as claimed in claim 2, wherein, the capacity of circular buffer is big more, and the predetermined volumes of the digital broadcast data of described demodulation is big more.
4, digital broadcast receiving terminal as claimed in claim 1, wherein, although there is demodulated data, demodulator can't the situation of reporting signal under, control unit reads the digital broadcast data of demodulation after the preset time section.
5, a kind of method by digital broadcast receiving terminal processing digital broadcast data, this method comprises:
Receive and the demodulation digital broadcast data;
When digital broadcast data is demodulated to predetermined volumes, read and store the digital broadcast data of demodulation; And
The digital broadcast data of output storage.
6, method as claimed in claim 5 wherein, in the step of the digital broadcast data that reads and store demodulation, when the report signal of the demodulation arrival predetermined volumes of reporting digital broadcast data is output, reads and stores the digital broadcast data of demodulation.
7, method as claimed in claim 6, wherein, in the step of the digital broadcast data that reads and store demodulation, although there is demodulated data, can't the situation of reporting signal under, read and store the digital broadcast data of demodulation.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050045058 | 2005-05-27 | ||
| KR20050045058 | 2005-05-27 | ||
| KR1020060045916 | 2006-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1870477A true CN1870477A (en) | 2006-11-29 |
Family
ID=37444042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100830597A Pending CN1870477A (en) | 2005-05-27 | 2006-05-29 | Digital broadcasting reception terminal and method for processing digital broadcasting data using the same |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100770879B1 (en) |
| CN (1) | CN1870477A (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100724344B1 (en) * | 2000-02-12 | 2007-06-04 | 엘지전자 주식회사 | Mpeg data input/output apparatus of digital television |
| JP2002165148A (en) * | 2000-11-29 | 2002-06-07 | Sony Corp | Data processing apparatus and method, and record medium |
| KR20050022556A (en) * | 2003-08-20 | 2005-03-08 | 삼성전자주식회사 | Reliable decoder and decoding method |
-
2006
- 2006-05-23 KR KR1020060045916A patent/KR100770879B1/en not_active IP Right Cessation
- 2006-05-29 CN CNA2006100830597A patent/CN1870477A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| KR100770879B1 (en) | 2007-10-26 |
| KR20060122712A (en) | 2006-11-30 |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |