CN201388268Y - Intelligent card and mobile digital TV terminal - Google Patents
Intelligent card and mobile digital TV terminal Download PDFInfo
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- CN201388268Y CN201388268Y CN200820233707.7U CN200820233707U CN201388268Y CN 201388268 Y CN201388268 Y CN 201388268Y CN 200820233707 U CN200820233707 U CN 200820233707U CN 201388268 Y CN201388268 Y CN 201388268Y
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- 230000010365 information processing Effects 0.000 claims description 7
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Abstract
The utility model provides an intelligent card and a mobile digital TV terminal. The intelligent card comprises a first interface unit and a first safety unit. The first interface unit is used for receiving relative information sent by the mobile digital TV terminal. The relative information comprises conditional access information and scrambling digital programs. The first safety unit is connected with the first interface unit. The first safety unit receives the scrambling digital programs and the conditional access information and processes the received conditional access information for obtaining descrambling control words. The control words are used to descramble the scrambling digital programs. The first interface unit sends the descrambled digital programs to the mobile digital TV terminal. The conditional access information is processed outside the digital TV terminal by the communication of the universal interface of the intelligent card and the mobile digital TV so that the load of the terminal is reduced and the terminal user can watch digital programs through the intelligent card without improving the hardware of the mobile digital TV terminal. In this way, the utility model saves the cost and brings convenience for the terminal user.
Description
Technical Field
The utility model relates to a digital television technical field is about smart card and mobile digital television terminal very much.
Background
The mobile digital television refers to a digital television System in which a transmitting end broadcasts digital programs by using a digital broadcasting technology, for example, a ground transmission technology and a satellite transmission technology, a receiving terminal is a mobile carrier installed in a bus, a taxi, a commercial car, a private car, a light rail, a subway, an urban railway, a train, a ferry, an airport and various kinds of mobile people or other public places, or the receiving terminal is a handheld receiving device, for example, a mobile phone, a notebook, a Media Player (PMP), a Global Positioning navigation System (GPS), a Personal Digital Assistant (PDA), and the like, so as to meet the requirements of mobile people.
The Conditional Access System (CAS) is a crucial part for digital tv service operation, and enables authorized users to normally receive scrambled programs, and realizes charging through authorization information and related information of the client database.
In the prior art, a security module of a conventional digital television terminal is placed in an intelligent card, and the intelligent card is connected with a digital television set-top box through an ISO 7816 interface to complete descrambling of scrambled signals. And users in different regions use different intelligent cards to watch corresponding digital television programs.
The inventor finds the defects of the prior art in the process of realizing the utility model: the mobile digital television terminal equipment does not provide an ISO 7816 interface, and the traditional smart card cannot be directly applied to the mobile digital television terminal; in addition, if the security module is integrated into the terminal device, the development difficulty and cost may be increased, and the mobile digital television terminal device may not watch programs across regions.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a smart card and mobile digital television terminal. The intelligent card is communicated with the mobile digital television through the intelligent card universal interface, the condition receiving information is processed outside the digital television terminal, the burden of the terminal can be reduced, a terminal user can watch digital programs through the intelligent card without improving the hardware of the mobile digital television terminal, the cost can be saved, and convenience is brought to the terminal user.
In order to achieve the above object, the present invention provides a smart card, comprising:
the first interface unit is connected with the mobile digital television terminal and is used for receiving related information transmitted by the mobile digital television terminal, wherein the related information comprises conditional access information and scrambled digital programs; wherein the conditional access information includes authorization management information and authorization control information;
the first safety unit is connected with the first interface unit and used for receiving the scrambled digital program and the conditional access information and processing the received conditional access information to obtain a descrambling control word; descrambling the scrambled digital program by using the control word;
and the first interface unit is also used for transmitting the descrambled digital program to the mobile digital television terminal.
In order to achieve the above object, the present invention provides a mobile digital television terminal, which comprises:
a first receiving unit, configured to receive conditional access information and a scrambled digital program sent by a conditional access system front end; wherein the conditional access information includes authorization management information and authorization control information;
the second sending unit is connected with the intelligent card and is used for transmitting the received conditional access information and the scrambled digital program to the intelligent card;
the second receiving unit is connected with the intelligent card and is used for receiving the descrambled digital program transmitted by the intelligent card;
a first decoding unit, configured to decode the received descrambled digital program;
and the first display unit is connected with the first decoding unit and is used for displaying the decoded digital decoding.
In order to achieve the above object, the present invention provides a smart card, comprising:
a third receiving unit, configured to receive conditional access information and a scrambled digital program transmitted by a conditional access system front end; wherein the conditional access information includes authorization management information and authorization control information;
a second security unit, connected to the third receiving unit, for receiving the scrambled digital program and the conditional access information, and processing the received conditional access information to obtain a descrambling control word; descrambling the scrambled digital program by using the control word;
and the second interface unit is connected with the mobile digital television terminal and is used for transmitting the descrambled digital program to the mobile digital television terminal.
In order to achieve the above object, the present invention provides a mobile digital television terminal, which comprises:
the fourth receiving unit is connected with the intelligent card and is used for receiving the descrambled digital programs and/or query information transmitted by the intelligent card;
a second decoding unit, configured to decode the received descrambled digital program;
the second display unit is connected with the second decoding unit or the fourth receiving unit and used for displaying the decoded digital decoding; or displaying the query information received by the fourth receiving unit.
The beneficial effects of the embodiment of the utility model reside in that, through the utility model discloses, through this intelligent card universal interface and mobile digital television communication, handle the condition reception information in this digital television terminal outside, can alleviate the burden at this terminal for digital program is watched to this smart card of end user's accessible, does not need to improve the hardware at this mobile digital television terminal, can practice thrift the cost like this, brings the convenience for end user.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic structural diagram of a smart card according to embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a smart card according to embodiment 2 of the present invention;
FIG. 3 is a schematic view of the first safety unit of FIG. 2;
FIG. 4 is a schematic view of the first processing unit shown in FIG. 3;
fig. 5 is a schematic diagram of a mobile digital television terminal according to embodiment 3 of the present invention;
fig. 6 is a schematic structural diagram of a smart card according to embodiment 4 of the present invention;
FIG. 7 is a schematic view of a second safety unit of FIG. 6;
fig. 8 is a schematic view of a mobile digital television terminal according to embodiment 5 of the present invention;
fig. 9 is a schematic diagram of the information interaction between the smart card and the mobile digital television terminal according to embodiment 6 of the present invention;
fig. 10 is a schematic diagram of the information interaction between the smart card and the mobile digital television terminal according to embodiment 7 of the present invention;
fig. 11 is a schematic diagram of the information interaction between the smart card and the mobile digital television terminal according to embodiment 8 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1
The utility model provides a smart card, as shown in fig. 1, the smart card 100 includes a first interface unit 101, a first security unit 102;
the first interface unit 101 is connected to a mobile digital television terminal, and is configured to receive related information transmitted by the mobile digital television terminal, where the related information includes conditional access information and a scrambled digital program; wherein the conditional access information includes authorization management information and authorization control information;
the first security unit 102 is connected to the first interface unit 101, and is configured to receive the scrambled digital program and the conditional access information, and process the received conditional access information to obtain a descrambling control word; descrambling the scrambled digital program by using the control word, and transmitting the descrambled digital program to the first interface unit 101;
and the first interface unit 101 is further configured to transmit the descrambled digital program to the mobile digital television terminal.
In this embodiment, the first interface unit 101 may be an SD interface, a Mini SD interface, and a MicroSD interface; alternatively, the first interface unit 101 may also be a USB interface, but is not limited thereto, and any other interface may be adopted as needed.
In this embodiment, the smart card 100 communicates with the mobile digital tv terminal through the first interface unit 101, receives the digital program and the conditional access information transmitted by the mobile digital tv terminal, and transmits the descrambled digital program to the mobile digital tv terminal, so that the terminal user can watch the tv program through the terminal by inserting the smart card into the mobile digital tv terminal with a corresponding interface through the first interface unit 101. Therefore, the hardware of the original terminal is not required to be changed, and the cost is saved.
Example 2
The utility model provides a smart card, as shown in FIG. 2, this smart card 200 includes first interface unit 101, first security unit 102, and its effect is similar to embodiment 1, and it is no longer repeated here.
In the present embodiment, the first security unit 102 may be configured such that, as shown in fig. 3, the first security unit 102 includes a first processing unit 301 and a first transmitting unit 302; wherein, the first processing unit 301 is connected to the first interface unit 101, and is configured to process the received conditional access information to obtain a descrambling control word CW; descrambling the scrambled digital program by using the control word CW; the first sending unit 302 is connected to the first processing unit 301, and is configured to transmit the descrambled digital program to the first interface unit 101.
Thus, the descrambled digital program is transmitted to the mobile digital television terminal through the first interface unit 101, and the terminal can decode the digital program and display the digital program on the terminal for the terminal user to watch.
In this embodiment, the first interface unit 101 further receives an inquiry request transmitted by the mobile digital television terminal, where the inquiry request can inquire related information, for example, information such as smart card information, authorization information, consumption record, and recharge record.
Thus, as shown in fig. 3, the first security unit 102 further includes a first request processing unit 303 and a first inquiry information sending unit 304; the first request processing unit 303 is connected to the first interface unit 101, and is configured to obtain corresponding query information according to the query request; the query information comprises the smart card information, and/or authorization information, and/or consumption record, and/or recharging record; the first query information sending unit 304 is configured to send the acquired information to the first interface unit 101.
Therefore, after the mobile digital television terminal receives the query information, the information can be displayed for the reference of the terminal user, and great convenience is brought to the terminal user.
In this embodiment, as shown in fig. 4, the first processing unit 301 may include an authorization management information processing unit 401, an authorization control information processing unit 402, and a descrambling unit 403; the authorization management information processing unit 401 is configured to process the received authorization management information by using the pre-embedded user key to obtain a product key; the authorization control information receiving unit 402, configured to process the received authorization control information by using the obtained product key to obtain a descrambling control word CW; the descrambling unit 403 is configured to descramble the scrambled digital program by using the obtained descrambling control word CW. Wherein, the authorization control information can be an ECM data packet; the entitlement management message may be an EMM packet.
Thus, as shown in fig. 2, the smart card may further include a first storage unit 203, where the first storage unit 203 is connected to the first security unit 102 and is used for storing a user key and a product key used by the first processing unit 301; or for storing the query information so that the end user can be provided with the stored query information when querying. In addition, the first storage unit 203 can also store information transmitted by the mobile digital television terminal connected with the smart card, so as to provide additional storage space for the terminal. The first storage unit 203 may employ a flash memory or the like.
As can be seen from the foregoing embodiments, the smart card 100 communicates with the mobile digital television terminal through the first interface unit 101, receives the digital program and the conditional access information transmitted by the mobile digital television terminal, and transmits the descrambled digital program to the mobile digital television terminal, so that a terminal user can watch the television program through the terminal by inserting the smart card into the mobile digital television terminal with a corresponding interface through the first interface unit 101. In addition, the smart card can also receive a query request sent by the mobile digital television terminal, obtain corresponding query information according to the query request, and transmit the query information to the mobile digital television terminal through the first interface unit 101 for the user to refer to.
Example 3
The utility model provides a mobile digital television terminal, this mobile digital television terminal can use with the smart card cooperation of embodiment 1, 2.
As shown in fig. 5, the mobile digital television terminal 500 may include a first receiving unit 501, a second transmitting unit 502; the first receiving unit 501 is configured to receive conditional access information and a scrambled digital program sent by a conditional access system front end; wherein the conditional access information includes authorization management information and authorization control information; the second sending unit 502 is connected to a smart card for transmitting the conditional access information and the scrambled digital program to the smart card.
In addition, the mobile digital television terminal further includes a second receiving unit 503, a first decoding unit 504, and a first display unit 505; the second receiving unit 503 is connected to the smart card, and is configured to receive the descrambled digital program transmitted by the smart card; the first decoding unit 504 is configured to decode the received first descrambled digital program; the first display unit 505 is connected to the first decoding unit 504, and is configured to display the decoded digital code.
In this embodiment, the second sending unit 502 and the second receiving unit 503 may be interfaces adapted to interface units of a smart card, and communicate with the smart card through the second sending unit 502 and the second receiving unit 503. For example, when the smart card interface is a USB interface, the second sending unit 502 and the second receiving unit 503 may be USB interfaces, and the second sending unit 502 and the second receiving unit 503 may be implemented by using one interface.
In addition, as shown in fig. 5, the mobile digital television terminal further includes a first query unit 506, where the first query unit 506 is configured to receive a query request input by a user of the mobile digital television terminal, and transmit the query request to the second sending unit 502; the second sending unit 502 is further configured to send the query request to the smart card.
As shown in fig. 5, the mobile digital television terminal further includes a first query information receiving unit 507 and a first query information display unit 508; the first query information receiving unit 507 is configured to receive query information returned by the smart card; the first query information display unit 508 is connected to the first query information receiving unit 507, and is configured to display the query information. Thus, the terminal may further include a request input unit (not shown in the drawings) through which the recall request is input.
In this embodiment, the first query unit 506 may be a WEB or WAP browser through which relevant query information can be browsed.
In this embodiment, the second sending unit 502, the first query information receiving unit 507 and the second receiving unit 503 may be implemented by using one interface.
In this embodiment, the mobile digital television terminal may be any mobile device, for example, a mobile phone, a PDA, a notebook computer, etc. having an interface adapted to the first interface unit 101 of the smart card.
It can be seen from the above embodiments that, by transmitting the conditional access information received from the front end of the conditional access system to the smart card and receiving the descrambled digital program returned by the smart card, the process of processing the conditional access information is performed outside the terminal, which reduces the processing burden of the terminal, and does not need to modify the terminal hardware, which can save the cost and bring convenience to the user of the terminal.
Example 4
The present invention further provides a smart card, as shown in fig. 6, the smart card 600 includes a third receiving unit 601, a second security unit 602, and a second interface unit 603; wherein,
the third receiving unit 601 is used for receiving conditional access information and scrambled digital programs transmitted by a conditional access system front end; wherein the conditional access information includes authorization management information and authorization control information;
the second security unit 602 is connected to the third receiving unit 601, and is configured to receive the scrambled digital program and the conditional access information, process the received conditional access information to obtain a descrambling control word, and descramble the scrambled digital program by using the descrambling control word;
the second interface unit 603 is connected to the mobile digital tv terminal, and is configured to transmit the descrambled digital program to the mobile digital tv terminal.
In this embodiment, the smart card may receive the conditional access information and the digital program sent by the conditional access system front end, process the related information, and transmit the descrambled digital program to the mobile digital television terminal, so as to reduce the processing burden of the terminal, and save the cost without changing the hardware of the terminal.
In the present embodiment, the second security unit 602 is configured as shown in fig. 7, and includes a second processing unit 701 and a third transmitting unit 702; the second processing unit 701 is connected to the third receiving unit 601, and is configured to process the received conditional access information to obtain a descrambling control word; descrambling the scrambled digital program by using the control word; the third sending unit 702 is connected to the second processing unit 701, and is configured to transmit the descrambled digital program to the second interface unit 603.
In addition, as shown in fig. 6, the smart card 600 further includes a second request receiving unit 605, where the second request receiving unit 605 is configured to receive the query request transmitted by the mobile digital television terminal, and transmit the query request to the second security unit 602 for processing.
In this embodiment, the second request receiving unit 605 may be integrated with the second interface unit 603, and commonly use the second interface unit 603 to receive or transmit related information.
In this embodiment, as shown in fig. 7, the second security unit 602 further includes a second request processing unit 703 and a second query information sending unit 704; the second request processing unit 703 is configured to obtain corresponding query information according to the received query request; the query information comprises the smart card information, and/or authorization information, and/or consumption record, and/or recharging record; the second query information sending unit 704 is configured to send the obtained information to the second interface unit 603, and the second interface unit 603 sends the query information to the mobile digital television terminal.
In this embodiment, the second processing unit may adopt the processing unit shown in fig. 4, which is not described herein.
In this embodiment, as shown in fig. 6, the smart card 600 may further include a second storage unit 604, where the second storage unit 604 is connected to the second security unit 602, and is used for storing the user key, the product key, or the query information, so that the end user can provide the stored query information to the end user when querying. In addition, the second storage unit 604 can also store information transmitted by the mobile digital television terminal connected with the smart card, so as to provide additional storage space for the terminal. The second storage unit 604 may employ a flash memory or the like.
It can be known from the above embodiments that the smart card can receive the conditional access information and the digital program sent by the conditional access system front end, process the related information, and transmit the descrambled digital program to the mobile digital television terminal, so that the processing burden of the terminal is reduced, the hardware of the terminal does not need to be changed, and the cost can be saved. And the inquiry request transmitted by the terminal can be received, the related inquiry information is obtained according to the inquiry request, and the inquiry information is returned to the terminal for the reference of the user.
Example 5
The utility model relates to a mobile digital television terminal, this terminal can with embodiment 4 the smart card cooperation use.
As shown in fig. 8, the mobile digital television terminal 800 includes a fourth receiving unit 801, a second decoding unit 802, a second display unit 803; the fourth receiving unit 801 is connected to a smart card, and is configured to receive the descrambled digital program and/or query information transmitted by the smart card; the second decoding unit 802 is configured to decode the received descrambled digital program; the second display unit 803 is connected to the second decoding unit or the third receiving unit 601, and is configured to display the decoded digital program; or displays the query information received by the fourth receiving unit 801.
The fourth receiving unit 801 may be an interface adapted to a smart card.
According to the embodiment, the descrambled digital program is received from the intelligent card, so that the process of processing the condition receiving information is carried out outside the terminal, the processing burden of the terminal is reduced, the terminal hardware is not required to be modified, the cost can be saved, and convenience is brought to the use of a terminal user.
Example 6
As shown in fig. 9, the smart card of embodiment 1 or embodiment 2 is inserted into the mobile digital television terminal of embodiment 3.
The interface of the intelligent card can adopt an SD interface, and the corresponding mobile digital television terminal can adopt an SD adapter matched with the SD interface to receive or send information between the intelligent card and the mobile digital television terminal.
In addition, in the smart card, the operations of the security unit, the storage unit, and the SD interface are controlled by the controller.
Example 7
As shown in fig. 10, similar to embodiment 6, the interface of the smart card may adopt a USB interface, and the corresponding mobile digital television terminal may adopt a USB adapter adapted to the USB interface to receive or transmit information between the smart card and the mobile digital television terminal.
In addition, in the smart card, the operations of the security unit, the storage unit, and the USB interface are controlled by the controller.
Example 8
As shown in fig. 11, the smart card of embodiment 4 is used in cooperation with the mobile digital television terminal of embodiment 5.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (14)
1. A smart card, characterized in that the smart card comprises:
the first interface unit is connected with the mobile digital television terminal and is used for receiving the conditional access information including the authorization management information and the authorization control information and the related information of the scrambling digital bytes transmitted by the mobile digital television terminal;
the first safety unit is connected with the first interface unit and used for receiving the scrambled digital program and the conditional access information and processing the received conditional access information to obtain a descrambling control word; descrambling the scrambled digital program by using the control word;
and the first interface unit is also used for transmitting the descrambled digital program to the mobile digital television terminal.
2. The smart card of claim 1, wherein the first security element comprises:
the first processing unit is connected with the first interface unit and used for processing the received conditional access information to obtain a descrambling control word; descrambling the scrambled digital program by using the control word;
and the first sending unit is connected with the first processing unit and is used for transmitting the descrambled digital program to the first interface unit.
3. The smart card of claim 1, wherein the first interface unit is further configured to receive related information including a query request sent by the mobile digital television terminal;
the first security unit further comprises:
the first request processing unit is connected with the first interface unit and used for acquiring corresponding query information comprising the information of the smart card, and/or authorization information, and/or consumption records, and/or recharging records according to the query request;
and the first query information sending unit is used for sending the acquired information to the first interface unit.
4. The smart card of claim 2, wherein the first processing unit comprises:
the authorization management information processing unit is used for processing the received authorization management information by utilizing the pre-embedded user key so as to obtain a product key;
the authorization control information processing unit is used for processing the received authorization control information by using the acquired product key to obtain a descrambling control word;
and the descrambling unit is used for descrambling the scrambled digital program by using the obtained descrambling control word.
5. The smart card according to claim 3 or 4, further comprising:
the first storage unit is connected with the first safety unit and is used for storing the user key and the product key; or store the query information.
6. A mobile digital television terminal, characterized in that the mobile digital television terminal comprises:
a first receiving unit, configured to receive conditional access information including authorization management information and authorization control information sent by a conditional access system front end, and a scrambled digital program;
the second sending unit is connected with the intelligent card and is used for transmitting the received conditional access information and the scrambled digital program to the intelligent card;
the second receiving unit is connected with the intelligent card and is used for receiving the descrambled digital program transmitted by the intelligent card;
a first decoding unit, configured to decode the received descrambled digital program;
and the first display unit is connected with the first decoding unit and is used for displaying the decoded digital decoding.
7. The mobile digital television terminal according to claim 6, further comprising:
the first query unit is used for receiving a query request input by a user of the mobile digital television terminal and transmitting the query request to the second sending unit;
the second sending unit is further configured to send the query request to the smart card.
8. The mobile digital television terminal according to claim 7, further comprising:
the first query information receiving unit is used for receiving query information returned by the intelligent card;
and the first query information display unit is connected with the first query information receiving unit and is used for displaying the query information.
9. A smart card, characterized in that the smart card comprises:
a third receiving unit, configured to receive conditional access information including entitlement management information and entitlement control information transmitted by a conditional access system front end, and a scrambled digital program;
a second security unit, connected to the third receiving unit, for receiving the scrambled digital program and the conditional access information, and processing the received conditional access information to obtain a descrambling control word; descrambling the scrambled digital program by using the control word;
and the second interface unit is connected with the mobile digital television terminal and is used for transmitting the descrambled digital program to the mobile digital television terminal.
10. The smart card of claim 9, wherein the second security element comprises:
the second processing unit is connected with the third receiving unit and is used for processing the received conditional receiving information to obtain a descrambling control word; descrambling the scrambled digital program by using the control word;
and the third sending unit is connected with the second processing unit and is used for transmitting the descrambled digital program to the second interface unit.
11. The smart card of claim 10, further comprising:
the second request receiving unit is used for receiving the inquiry request transmitted by the mobile digital television terminal;
the second security unit further comprises:
the second request processing unit is connected with the second request receiving unit and used for acquiring corresponding query information comprising the information of the smart card, and/or authorization information, and/or consumption records, and/or recharging records according to the query request;
and the second query information sending unit is used for sending the acquired information to the second interface unit.
12. The smart card of claim 10, wherein the second processing unit comprises:
the authorization management information processing unit is connected with the third receiving unit and used for processing the received authorization management information by using the pre-embedded user key so as to obtain a product key;
the authorization control information processing unit is connected with the third receiving unit and used for processing the received authorization control information by using the acquired product key to obtain a descrambling control word;
and the descrambling unit is connected with the third receiving unit and is used for descrambling the scrambled digital program by using the obtained descrambling control word.
13. The smart card according to claim 10 or 11, further comprising:
and the second storage unit is connected with the second safety unit and is used for storing the user key, the product key or the query information.
14. A mobile digital television terminal, characterized in that the mobile digital television terminal comprises:
the fourth receiving unit is connected with the intelligent card and is used for receiving the descrambled digital programs and/or query information transmitted by the intelligent card;
a second decoding unit, configured to decode the received descrambled digital program;
the second display unit is connected with the second decoding unit or the fourth receiving unit and used for displaying the decoded digital decoding; or displaying the query information received by the fourth receiving unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820233707.7U CN201388268Y (en) | 2008-12-18 | 2008-12-18 | Intelligent card and mobile digital TV terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820233707.7U CN201388268Y (en) | 2008-12-18 | 2008-12-18 | Intelligent card and mobile digital TV terminal |
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| CN201388268Y true CN201388268Y (en) | 2010-01-20 |
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| CN200820233707.7U Expired - Fee Related CN201388268Y (en) | 2008-12-18 | 2008-12-18 | Intelligent card and mobile digital TV terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107135425A (en) * | 2017-05-17 | 2017-09-05 | 深圳国微技术有限公司 | A kind of media data processing method, apparatus and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107135425A (en) * | 2017-05-17 | 2017-09-05 | 深圳国微技术有限公司 | A kind of media data processing method, apparatus and system |
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