CN1832570A - Shortening content storage and play time of mobile communication terminal and working method thereof - Google Patents
Shortening content storage and play time of mobile communication terminal and working method thereof Download PDFInfo
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- CN1832570A CN1832570A CNA2006100010920A CN200610001092A CN1832570A CN 1832570 A CN1832570 A CN 1832570A CN A2006100010920 A CNA2006100010920 A CN A2006100010920A CN 200610001092 A CN200610001092 A CN 200610001092A CN 1832570 A CN1832570 A CN 1832570A
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- 238000010295 mobile communication Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000004904 shortening Methods 0.000 title claims description 23
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 8
- 238000007726 management method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000013523 data management Methods 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
-
- 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
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
- H04N21/4627—Rights management associated to the content
-
- 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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/835—Generation of protective data, e.g. certificates
- H04N21/8355—Generation of protective data, e.g. certificates involving usage data, e.g. number of copies or viewings allowed
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/18—Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Security & Cryptography (AREA)
- Databases & Information Systems (AREA)
- Theoretical Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Software Systems (AREA)
- Technology Law (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephonic Communication Services (AREA)
- Telephone Function (AREA)
Abstract
The present invention provides one kind of mobile communication terminal with shortened content storing and broadcasting time and its operation process. The mobile communication terminal includes an internal memory to store the data received from the content server; and a controller to change the extension name of the received data based on the presence or absence of the copyright management service setting. The present invention can shorten the coding and decoding time for storing and broadcasting the data and avoid the transmission of data with special extension name to other equipment and unauthorized data copying to ensure data safety.
Description
Technical field
The present invention relates to a kind of storage of content and the mobile communication terminal and method of work thereof of reproduction time of shortening, especially a kind of its extension name that changes when receive setting the data of digital copyright management (DRM:DigitalRights Management) service from content server, when storing and playing above-mentioned data, use the content of not carrying out Code And Decode, thereby realize shortening the mobile communication terminal and the method for work thereof of storage and reproduction time.
Background technology
Recently, the Content supply service is a kind of as mobile communication service, is obtaining positive popularizing, and along with the popularizing and diffusion of above-mentioned mobile communication terminal, the utilance of foregoing supply service is also in rapid increase.
Foregoing supply service is meant, utilizes existing internet, the service that the abundant content that is provided in the personal computer can be shown by the display frame of mobile communication terminal.That is, at first in Content supply data in server storehouse, store foregoing, by after connecting the own needed content of wireless Internet selection and paying corresponding expense, make it can download foregoing the user.
The foregoing downloading mode has multiple, as be directly connected to wireless Internet and download the method that is stored in the content in the particular server by landing step, or utilize the personal computer be connected in the Internet to download specific content and be stored in the personal computer from the Content supply server by the user, then it is downloaded to the method in the mobile communication terminal.
But ought be not the third party through authorizing, the content of utilizing said method will be stored among mobile communication terminal or the home computer is arbitrarily carried out bootlegging, and when playing in the mobile communication terminal of oneself, does not prevent the method for its behavior.
Because aforesaid reason, above-mentioned mobile communication terminal utilizes digital copyright management (DRM) system when downloading foregoing, from suppliers with the various content safeties the network pass to the user, and in order to prevent that above-mentioned user from carrying out illegal circulation to content, content corresponding is sent in the mobile communication terminal after encoding, and plays after in above-mentioned mobile communication terminal, foregoing being decoded.
Can cause because of Code And Decode storing when storing or play foregoing and the prolongation of reproduction time this moment in above-mentioned mobile communication terminal, the user is stored and is fed up with when playing foregoing.
Summary of the invention
The object of the present invention is to provide a kind of storage of content and the mobile communication terminal and method of work thereof of reproduction time of shortening, the extension name of the data by will having carried out the DRM service initialization changes to default particular extension, avoid above-mentioned data are carried out Code And Decode, thereby shorten the storage and the reproduction time of above-mentioned data.
To achieve these goals, the mobile communication terminal of the storage of shortening content of the present invention and reproduction time comprises: the internal memory that the data that receive from content server are stored; According to data copyright administration (DRM, the Digital Rights Management) service initialization of received data whether, the control part that the extension name of described data is changed.
Described control part comprises:
Whether the data judging part is judged the digital copyright management service setting of received data;
Data transaction portion changes extension name according to the result who judges, described data can be encoded and decode.
Described data transaction portion is at the inner identifier that is used to distinguish kind of document that generates of the header file of described data.
Described data judging part utilizes identifier field to divide the kind of file when played data.
Described control part also is provided with the data processing division of employed particular extension when the extension name of the described data of change, thereby does not carry out Code And Decode.
Described data processing division is provided with the described data with particular extension, and it can not be sent in other equipment.
In addition, the present invention also provides the method for work of the mobile communication terminal of a kind of storage of shortening content and reproduction time, comprising: the 1st stage of data download; By changing its extension name, the 2nd stage that under the situation of institute's data downloaded not being encoded, stores; By discerning its extension name, the 3rd stage of under the situation of stored data not being decoded, playing.
Described the 2nd stage comprises:
The 1st process whether the data copyright administration service setting of institute's data download is judged;
Result according to judging is encoded and decodes in order to prevent described data, the 2nd process of employed particular extension when being arranged on the extension name that changes described data.
In described the 1st process, when institute's data downloaded is not carried out the service of data copyright administration and is provided with, directly described data are play.
Described the 2nd process is provided with the described data with particular extension, and it can not be sent in other equipment.
Described the 2nd stage comprises:
In inner the 3rd process that generates the identifier that is used to distinguish kind of document of the header file of described data;
The extension name of described data is changed to the 4th process of set particular extension;
The 5th process that data with particular extension are stored.
Described the 3rd stage comprises:
Whether the extension name of judging stored data is the 6th process of set particular extension;
According to the result who judges, utilize the identifier of stored data to confirm the 7th process of its kind of document.
In described the 6th process, when the extension name of stored data is not particular extension, directly stored data are play.
The mobile communication terminal and the method for work thereof of the storage of the shortening content suitable of the present invention of structure and reproduction time as mentioned above, can be when the data of accepting from content server have been carried out the DRM service and have been provided with, change to default particular extension by extension name with received data, shorten in the storage of described data and the playing process because the time lengthening that Code And Decode causes, thereby improve user convenience.
Simultaneously, be sent in other equipment, do not stop having and under the licensed-in state described data are duplicated, thereby guarantee described safety of data because can prevent data with above-mentioned particular extension.
Description of drawings
Fig. 1 is the structural representation that is suitable for the communication system of mobile communication terminal of the present invention;
Fig. 2 is the structured flowchart of mobile communication terminal of the present invention;
Fig. 3 is the precedence diagram of the data storage method of mobile communication terminal of the present invention;
Fig. 4 is the precedence diagram of the data playing method of mobile communication terminal of the present invention.
The symbol description * * * of * * accompanying drawing major part
10: mobile communication terminal 11: display part
12: internal memory 13: control part
13a: data judging part 13b: data processing division
13c: data transaction portion 14: communication module
20: content server 21: database (D/B)
22: the 22a of server controls portion: Data Management Department
22b: data selection portion 23: communication module
Embodiment
Below, in conjunction with the accompanying drawings embodiments of the invention are described in detail.Fig. 1 is the structural representation of the communication system of the mobile communication terminal of the storage that is suitable for shortening content of the present invention and reproduction time, and Fig. 2 is the structured flowchart of mobile communication terminal of the present invention.
The communication system of the storage of shortening content of the present invention and the mobile communication terminal of reproduction time as shown in Figure 1, provide described data by the content server 20 that stores data, and will be delivered in the described mobile communication terminal 10 by base station 30 by the data that described content server 20 provides.
Described content server 20 comprises the database (Database, D/B) 21 that are used to store described data; According to the request of described mobile communication terminal 10, provide the server controls portion 22 of corresponding data; Data in the described content server 20 are carried out the communication module 23 of transceiver.
Wherein, described server controls portion 22 comprises the 22a of Data Management Department that the transceiver to described data manages; According to the request of described mobile communication terminal 10, in the data that are stored in described database (Database) 21, select the data selection portion 22b of the data corresponding with the request of described mobile communication terminal 10.
In addition, described content server 20 provides various different types of data such as photo, animation, caricature, recreation, novel, the tinkle of bells by described communication module 23, and these data have been carried out data copyright administration (DRM in order to forbid under the situation that does not have permission, using described data, Digital Rights Manage-ment, hereinafter to be referred as DRM) the service setting, thereby when described data are sent to described mobile communication terminal 10, it is encoded, and when playing, described content encoded data are decoded.
Described mobile communication terminal 10 comprises being used for display part 11 that the data that receive from described content server 20 are shown as shown in Figure 2; Be used for internal memory 12 that the data that receive from described content server 20 are stored, be used for the control part 13 that under the state that does not carry out Code And Decode, the data that receive from described content server 20 is stored and play; Be used to carry out the communication module 14 that the data transmitting and receiving of described mobile communication terminal 10 is handled.
When the data that receive from described content server 20 are not carried out the DRM service and are provided with, the data that receive will directly be stored in the described internal memory 12.
And when the data that receive from described content server 20 have been carried out the DRM service and are provided with, the data that receive will be stored in the described internal memory 12 after its extension name of change.
Described control part 13 comprises that whether the DRM service to received data is provided with the data judging part 13a that judges; Be provided with the data processing division 13b of employed particular extension when the extension name of the described data of change; According to the result of described judgement, the 13c of data transaction portion that the extension name of described data is changed.
Among the described data processing division 13b, be provided with the particular extension that the extension name that has been used for to the carrying out that receive from described content server 20 data that the DRM service is provided with changes.
Promptly, among the described data processing division 13b, be provided with that the extension name that is used for described data changes at present not in the particular extension of using, so that handling to having carried out needn't carrying out Code And Decode to it when data that the DRM service is provided with store and play.
In addition, described data processing division 13b is provided with the data with particular extension, makes it can not be sent to other equipment that have transceiver func-tions as mobile communication terminal or PC etc.
For example, described data processing division 13b sets extension name " dm " arbitrarily for the extension name of having carried out the data that the DRM service is provided with is changed.
At this moment, have the data " * .dm " of described " dm " extension name, when storing and playing described data, can in described mobile communication terminal 10, not carry out Code And Decode and handle, and can not be sent in other equipment.
Described data judging part 13a is when described content server 20 receives data, whether the DRM service of the data that received is provided with judges.
Described data judging part 13a directly is stored into it in described internal memory 12 when the data that received are not carried out DRM service and are provided with; And when described data have been carried out DRM service and are provided with, then change the extension name of described data by the described data transaction 13c of portion.
The described data transaction 13c of portion is according to the judged result of described data judging part 13a, when described data have been carried out the DRM service and are provided with, the extension name of described data changed to the particular extension that is provided with among the described data processing division 13b.
At this moment, the described data transaction 13c of portion changes to particular extension by the extension name with described data, the data that can avoid described data to be identified as having carried out the DRM service to be provided with, thus can not encode in being stored into described internal memory 12 time.
That is, the described data transaction 13c of portion is when being used for that the particular extension that the extension name of having carried out the data that the DRM service is provided with changes is set to " dm ", and the extension name of the data that will receive from described content server 20 changes to " dm ".
For example, when the data that receive from described content server 20 are " funny.MPEG ", service is provided with if described " funny.MPEG " carried out DRM, then by " funny.MPEG " changed to " funny.dm ", make described mobile communication terminal 10 described data identification can be the data of " MPEG " form, but be the data of " dm " form described data identification.
In addition, the described data transaction 13c of portion is when the extension name of the described data of change, and for the attribute to described data is distinguished, the header file inside in described data before the described extension name of change generates identifier.
Simultaneously, when described data judging part 13a is stored in data in the described internal memory 12 in broadcast, whether the extension name of judging described data is the particular extension that sets, if the extension name of described data is not specific extension name, then handles according to the association attributes of described attribute.
And when the extension name of the data that described data judging part 13a plays at needs is the particular extension that sets, by the identifier that is created on described header file inside is discerned, distinguish the attribute of described data file and utilize original attribute of the extension name data file before of the described data of change to play.
For example, in described data processing division 13b, when employed particular extension is set to " dm " when the extension name of having carried out the data that the DRM service is provided with is changed, if the data that are stored in the described internal memory 12 are " fun.mpeg ", then confirming that its extension name is not that " dm " directly plays afterwards.
And the data in being stored in described internal memory 12 are confirmed its expansion " dm " by name when " funfun.dm ".At this moment, if the old file name of described data is " funfun.mpeg ", then utilize the identifier that is generated in the header file inside of " funfun.dm " that be stored in described internal memory 12, the file attribute of confirming described " funfun.dm " is " mpeg ", thereby with " mpeg " format identification described " funfun.dm " and play.
Below, the method for work of the present invention of structure is as mentioned above described.Fig. 3 and Fig. 4 are the precedence diagram of method of work of the mobile communication terminal of the storage of shortening content of the present invention and reproduction time, wherein Fig. 3 is the precedence diagram of the data storage method of mobile communication terminal of the present invention, and Fig. 4 is the precedence diagram of the data playing method of mobile communication terminal of the present invention.
When being connected to content server (seeing step S1), and from described content server, (see step S2) after the data download, whether the DRM service of institute's data download is provided with judges (seeing step S3).
When described data have been carried out DRM service and have been provided with, at the inner identifier (seeing step S4) that generates the file attribute that is used to distinguish described data of the header file of described data.
When described header file is inner generate identifier after, the extension name of described data is changed to particular extension (seeing step S5) parallel operation it is stored in the internal memory (sees step S6).
At this moment, described particular extension was provided with in described mobile communication terminal before described mobile communication terminal is connected to described content server in advance.
Simultaneously, described mobile communication terminal changes to particular extension by the extension name with institute's data download, can not be with described data identification to have carried out the data that the DRM service is provided with, thereby can not encode to described data when storing described data.
For example, in the time of in described mobile communication terminal, will changing to the extension name of having carried out the data that the DRM service is provided with, when employed particular extension is set to " dm ", if the data that receive from described content server are for " smile.avi " and carried out DRM service setting, then the inner generation of the header file of described " smile.avi " can original to file " avi " attribute distinguish identifier.
After the inner generation of the header file identifier in described data, described " smile.avi " will be changed to " smile.dm " and is stored in the internal memory under the state of described data not being encoded.
At this moment, described mobile communication terminal " dm " by name to expanding data are provided with, and described data can not be sent in other equipment.
Simultaneously, when described data are not carried out DRM service and are provided with, then under the state of the extension name that does not change institute's data download, be stored in the internal memory.
When stored data are play,, judge then whether the extension name of data selected is the particular extension of setting (seeing step S12) if selected stored data (seeing step S11).
When the extension name of data selected is particular extension, utilizes the attribute (seeing step S13) that divides file in the inner identifier field that generates of described header file, and described data are play (seeing step S14).
At this moment, do not encode because described data with particular extension are not identified as the data of having carried out the DRM service, therefore the decode procedure when playing described data also will be omitted.
In addition, when the extension name of data selected is not particular extension, will play-over selected data (seeing step S14).
Therefore, the storage of shortening content of the present invention and the mobile communication terminal of reproduction time and method of work thereof, by when receiving data, the extension name of having carried out the data that the DRM service is provided with being changed from content server, make the data of change after the extension name needn't be, thereby shorten the storage and the reproduction time of described data through the process of Code And Decode.
The foregoing description only is used to illustrate the present invention, but not is used to limit the present invention.
Claims (13)
1. one kind is shortened the storage of content and the mobile communication terminal of reproduction time, it is characterized in that comprising:
Internal memory stores the data that receive from content server;
According to the data copyright administration service initialization of received data whether control part, changes the extension name of described data.
2. a kind of storage of content and mobile communication terminal of reproduction time of shortening according to claim 1, it is characterized in that: described control part comprises:
Whether the data judging part is judged the digital copyright management service setting of received data;
Data transaction portion changes extension name according to the result who judges, described data can be encoded and decode.
3. a kind of storage of content and mobile communication terminal of reproduction time of shortening according to claim 2 is characterized in that: described data transaction portion, and at the inner identifier that is used to distinguish kind of document that generates of the header file of described data.
4. according to claim 2 or the 3 described a kind of storage of content and mobile communication terminals of reproduction time of shortening, it is characterized in that: described data judging part, utilize identifier field to divide the kind of file when played data.
5. a kind of storage of content and mobile communication terminal of reproduction time of shortening according to claim 1, it is characterized in that: described control part is provided with the data processing division of employed particular extension when the extension name of the described data of change, thereby does not carry out Code And Decode.
6. a kind of storage of content and mobile communication terminal of reproduction time of shortening according to claim 5, it is characterized in that: described data processing division is provided with the described data with particular extension, and it can not be sent in other equipment.
7. the method for work of the mobile communication terminal of the storage of shortening content and reproduction time is characterized in that comprising:
The 1st stage of data download;
By changing its extension name, the 2nd stage that under the situation of institute's data downloaded not being encoded, stores;
By discerning its extension name, the 3rd stage of under the situation of stored data not being decoded, playing.
8. the method for work of the mobile communication terminal of a kind of storage of shortening content according to claim 7 and reproduction time, it is characterized in that: described the 2nd stage comprises:
The 1st process whether the data copyright administration service setting of institute's data download is judged;
Result according to judging is encoded and decodes in order to prevent described data, the 2nd process of employed particular extension when being arranged on the extension name that changes described data.
9. the method for work of the mobile communication terminal of a kind of storage of shortening content according to claim 8 and reproduction time, it is characterized in that: in described the 1st process, when institute's data downloaded is not carried out the service of data copyright administration and is provided with, directly described data are play.
10. the method for work of the mobile communication terminal of a kind of storage of shortening content according to claim 8 and reproduction time, it is characterized in that: described the 2nd process is provided with the described data with particular extension, and it can not be sent in other equipment.
11. the method for work of the mobile communication terminal of a kind of storage of shortening content according to claim 7 and reproduction time, it is characterized in that: described the 2nd stage comprises:
In inner the 3rd process that generates the identifier that is used to distinguish kind of document of the header file of described data;
The extension name of described data is changed to the 4th process of set particular extension;
The 5th process that data with particular extension are stored.
12. the method for work of the mobile communication terminal of a kind of storage of shortening content according to claim 7 and reproduction time, it is characterized in that: described the 3rd stage comprises:
Whether the extension name of judging stored data is the 6th process of set particular extension;
According to the result who judges, utilize the identifier of stored data to confirm the 7th process of its kind of document.
13. the method for work of the mobile communication terminal of a kind of storage of shortening content according to claim 12 and reproduction time, it is characterized in that: in described the 6th process, when the extension name of stored data is not particular extension, directly stored data are play.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050020171 | 2005-03-10 | ||
| KR1020050020171A KR100712921B1 (en) | 2005-03-10 | 2005-03-10 | Mobile communication terminal enable to play content in short time and its operating method |
| KR10-2005-0020171 | 2005-03-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1832570A true CN1832570A (en) | 2006-09-13 |
| CN100431350C CN100431350C (en) | 2008-11-05 |
Family
ID=36994542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100010920A Expired - Fee Related CN100431350C (en) | 2005-03-10 | 2006-01-16 | Shortening content storage and play time of mobile communication terminal and working method thereof |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100712921B1 (en) |
| CN (1) | CN100431350C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100785070B1 (en) | 2006-07-11 | 2007-12-12 | 삼성전자주식회사 | Method and apparatus for playing of drm contents in a portable terminal |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6260043B1 (en) * | 1998-11-06 | 2001-07-10 | Microsoft Corporation | Automatic file format converter |
| US6385767B1 (en) * | 1999-09-30 | 2002-05-07 | Unisys Corporation | Method and system for creating and manipulating extensions to version control systems |
| US7099869B1 (en) * | 2001-07-11 | 2006-08-29 | Apple Computer, Inc. | Method and apparatus for managing file extensions in a digital processing system |
| JPWO2003105426A1 (en) * | 2002-06-06 | 2005-10-13 | 株式会社エヌ・ティ・ティ・ドコモ | E-mail delivery method, communication terminal, and server device |
| KR100575712B1 (en) * | 2002-11-05 | 2006-05-03 | 엘지전자 주식회사 | Multimedia contents searching and playing method for mobile communication terminal |
| CN1205829C (en) * | 2003-08-11 | 2005-06-08 | 安凯（广州）软件技术有限公司 | Music format conversion method for wireless hand-held device |
-
2005
- 2005-03-10 KR KR1020050020171A patent/KR100712921B1/en not_active IP Right Cessation
-
2006
- 2006-01-16 CN CNB2006100010920A patent/CN100431350C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR20060099134A (en) | 2006-09-19 |
| CN100431350C (en) | 2008-11-05 |
| KR100712921B1 (en) | 2007-05-02 |
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