CN103365736A - Set top box and method for updating character library of set top box - Google Patents

Set top box and method for updating character library of set top box Download PDF

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Publication number
CN103365736A
CN103365736A CN2013102209680A CN201310220968A CN103365736A CN 103365736 A CN103365736 A CN 103365736A CN 2013102209680 A CN2013102209680 A CN 2013102209680A CN 201310220968 A CN201310220968 A CN 201310220968A CN 103365736 A CN103365736 A CN 103365736A
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China
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library
character library
box
updated
character
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CN2013102209680A
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Chinese (zh)
Inventor
刘鑫
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Hisense Broadband Multimedia Technology Co Ltd
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Hisense Broadband Multimedia Technology Co Ltd
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Priority to CN2013102209680A priority Critical patent/CN103365736A/en
Publication of CN103365736A publication Critical patent/CN103365736A/en
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Abstract

The invention discloses a set top box and a method for updating a character library of the set top box. the method comprises the steps of presetting a default character library storage area and an update character library storage area in the set top box, receiving the input character library to be updated, performing cyclic redundancy check on the character library to be updated, writing the character library to be updated into the update character library storage area after the cyclic redundancy check succeeds, and replacing contents stored in the update character library storage area with content stored in the default character library storage area after confirming the character library to be updated fails to be written into the update character library storage area. The set top box comprises an interface, an instruction receiving and execution module, a character library file update module and a judgment detection module. With the adoption of the method, the fact that the set top box cannot be started or the character library displays messy codes due to failure write-in of the character library can be avoided.

Description

Upgrade method and the set-top box of set-top box character library
Technical field
The present invention relates to the set-top box technique field, relate in particular to a kind of set-top box character library update method.
Background technology
At present, the set-top box character library that set-top box manufacturer provides only adopts Chinese and English bilingual, for other Languages or wish the user of more kinds of speech selection, can upgrade upgrading to the set-top box character library by the mode of online upgrading; Or the language character library of the pre-stored downloads of External memory equipment such as use USB flash disk imports set-top box by USB interface again, thereby the set-top box character library is upgraded upgrading.
As seen by above-mentioned, the upgrading mode that original character library is replaced is adopted in existing upgrading to the set-top box character library, namely adopts and wipes legacy data, and the method that writes new data is upgraded character library.Like this, if mistake appears in the character library of downloading, be easy to cause that the inner word-base data that upgrades upgrading of set-top box damages, cause the set-top box character library to start, or because the set-top box word-base data is lost, show mess code; Further, owing to adopting the upgrading mode that original character library is replaced, when set-top box can't start or mess code occur, also can't revert to initial character library to ensure the normal operation of set-top box character library.
Summary of the invention
Goal of the invention of the present invention has been to provide a kind of method and set-top box of upgrading the set-top box character library, has avoided cause set-top box to start, or character library showing mess code because writing the character library of failure.
An aspect provides a kind of method of upgrading the set-top box character library according to an embodiment of the invention, comprising: acquiescence library stores district is set in set-top box in advance and upgrades the library stores district; Receive the character library to be updated of input, this character library to be updated is carried out cyclic redundancy check (CRC), after the cyclic redundancy check (CRC) success, should character library to be updated write renewal library stores district; Confirm that character library to be updated writes the district's failure of renewal library stores, with the content of content replacement renewal library stores district's storage of giving tacit consent to the storage of library stores district.
Preferably, the character library that arranges when described acquiescence library stores district memory machine top box dispatches from the factory, the character library of upgrading is upgraded in the storage of described renewal library stores district by network or USB; Before set-top box was upgraded upgrading, the content of described renewal library stores district storage was identical with the content of described acquiescence library stores district storage.
Preferably, described character library to be updated downloads to set-top box by online mode from network, and described method further comprises: if whether again cyclic redundancy check (CRC) failure shows user's character library failed download information and Download Info; Receive the again Download Info that the user chooses, download described character library to be updated by online mode.
Preferably, described renewal character library is pre-stored in USB flash disk, imports set-top box by USB interface, and described method further comprises: if the cyclic redundancy failure directly finishes to upgrade the character library pattern.
Preferably, after described content replacement with the district's storage of acquiescence library stores upgrades the step of the content of storing in the library stores district, described method further comprises: receive transport stream and processing, read the character library display strategy of setting, choose character library corresponding to character library display strategy, be carried in the transport stream of processing and export.
Another aspect also provides a kind of set-top box according to an embodiment of the invention, comprising: interface, command reception execution module, font file update module, judgement detection module; Described interface is used for inputting character library to be updated, and character library to be updated is imported described judgement detection module; Described judgement detection module is used for character library to be updated is carried out cyclic redundancy check (CRC), after the cyclic redundancy check (CRC) success, should character library to be updated export described command reception execution module to; Described command reception execution module, the character library to be updated that is used for receiving writes the renewal library stores district of described font file update module, and character library to be updated writes upgrades the failure of library stores district, to described font file update module output trigger message; Described font file update module comprises for the acquiescence library stores district of storage acquiescence character library and the renewal library stores district of storage update character library, receives trigger message, upgrades the content of library stores district storage with the content replacement of acquiescence library stores district's storage.
Preferably, described interface comprises network interface and USB interface, and network interface is used for by network character library to be updated being downloaded to described judgement detection module in online mode; USB interface is used for by being inserted in USB flash disk wherein, and the to be updated character library of pre-save in USB flash disk imported described judgement detection module.
Whether again preferably, described judgement detection module is further used for after the cyclic redundancy check (CRC) failure to the character library to be updated of described network interface input, show user's character library failed download information and Download Info; Described interface is further used for receiving the again Download Info that the user chooses, and sends to the webserver by online mode.
Preferably, described judgement detection module is further used for finishing character library and upgrading after the cyclic redundancy check (CRC) failure of the character library to be updated that described USB interface is imported.
Preferably, described set-top box further comprises: the transport stream processing module, and be used for to receive transport stream and process, read the character library display strategy of setting, choose character library corresponding to character library display strategy, be carried in the transport stream of processing and export.
In the technical scheme of the embodiment of the invention, before carrying out the character library renewal, acquiescence library stores district is set in set-top box in advance and upgrades the library stores district, the character library that acquiescence library stores district arranges when dispatching from the factory for the memory machine top box, renewal library stores district passes through network for storage or USB upgrades the character library of upgrading.Before set-top box was upgraded upgrading, the content of upgrading the storage of library stores district was identical with the content of acquiescence library stores district's storage, the character library that arranges when namely the memory machine top box dispatches from the factory.Upgrade in the escalation process in set-top box, character library to be updated writes upgrades the failure of library stores district, upgrades the content of library stores district storage with the content replacement that will give tacit consent to the storage of library stores district.Like this, mistake appears in character library to be updated, cause when the inner word-base data that upgrades upgrading of set-top box damages, be setting before set-top box is dispatched from the factory with the content recovery that upgrades the storage of library stores district, adopt the character library of upgrading the storage of library stores district to show so that no matter set-top box is set, or adopt the character library of acquiescence library stores district's storage to show, can ensure in the follow-up flow process, the set-top box character library normally starts, and the mess code demonstration do not occur.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art.Apparently, the accompanying drawing in below describing only is some embodiments of the present invention, for those of ordinary skills, can also obtain according to these accompanying drawing illustrated embodiments other embodiment and accompanying drawing thereof.
Fig. 1 is the method flow schematic diagram that the embodiment of the invention is upgraded the set-top box character library;
Fig. 2 is the method flow schematic diagram that the present invention's one specific embodiment upgrades the set-top box character library;
Fig. 3 is the method flow schematic diagram that another specific embodiment of the present invention upgrades the set-top box character library;
Fig. 4 is the structural representation of embodiment of the invention set-top box.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, referring to accompanying drawing and enumerate preferred embodiment, the present invention is described in more detail.Yet, need to prove, many details of listing in the instructions only are in order to make the reader to one or more aspects of the present invention a thorough understanding be arranged, even if there are not these specific details also can realize these aspects of the present invention.
The invention provides a kind of set-top box character library update method, before carrying out the character library renewal, acquiescence library stores district is set in set-top box in advance and upgrades the library stores district, the character library that acquiescence library stores district arranges when dispatching from the factory for the memory machine top box, renewal library stores district passes through network for storage or USB upgrades the character library of upgrading.Before set-top box was upgraded upgrading, the content of upgrading the storage of library stores district was identical with the content of acquiescence library stores district's storage, the character library that arranges when namely the memory machine top box dispatches from the factory.Upgrade in the escalation process in set-top box, character library to be updated writes upgrades the library stores district when unsuccessful, and the content replacement that triggering will give tacit consent to the storage of library stores district upgrades the content that the library stores district stores.Like this, mistake appears in character library to be updated, cause when the inner word-base data that upgrades upgrading of set-top box damages, be setting before set-top box is dispatched from the factory with the content recovery that upgrades the storage of library stores district, adopt the character library of upgrading the storage of library stores district to show so that no matter set-top box is set, or adopt the character library of acquiescence library stores district's storage to show, can ensure in the follow-up flow process, the set-top box character library normally starts, and the mess code demonstration do not occur.
Fig. 1 is the method flow schematic diagram that the embodiment of the invention is upgraded the set-top box character library, and referring to Fig. 1, this flow process comprises:
Step 101 arranges in advance acquiescence library stores district and upgrades the library stores district in set-top box;
In this step, the character library that acquiescence library stores district arranges when dispatching from the factory for the memory machine top box, renewal library stores district passes through network for storage or USB upgrades the character library of upgrading.Before set-top box was upgraded upgrading, the content of upgrading the storage of library stores district was identical with the content of acquiescence library stores district's storage, the character library that arranges when namely the memory machine top box dispatches from the factory.
Step 102 receives the character library to be updated of inputting, and this character library to be updated is carried out cyclic redundancy check (CRC), after the cyclic redundancy check (CRC) success, should character library to be updated write renewal library stores district;
In this step, the character library to be updated of input can be by online mode, downloads to set-top box from network, also can be the language character library of using the pre-stored downloads of External memory equipment such as USB flash disk, imports set-top box by USB interface again.
The purpose of carrying out cyclic redundancy check (CRC) is in order to ensure obtaining correct character library to be updated.
In the practical application, carry out the situation of cyclic redundancy check (CRC) failure for character library to be updated, if this character library to be updated be to download by network, then can prompting user character library failed download, and inquire whether again download, process accordingly according to user's selection; If this character library to be updated is to import by USB interface, then process ends.
Step 103 judges whether write the character library to be updated of upgrading the library stores district writes successfully, if so, execution in step 104, otherwise the content replacement that triggering will be given tacit consent to the storage of library stores district upgrades the content that the library stores district stores, execution in step 104;
In this step, write in character library to be updated and to upgrade the library stores district when unsuccessful, the content replacement that triggering will give tacit consent to the storage of library stores district upgrades the content that the library stores district stores.Like this, mistake appears in character library to be updated, cause when the inner word-base data that upgrades upgrading of set-top box damages, be setting before set-top box is dispatched from the factory with the content recovery that upgrades the storage of library stores district, adopt the character library of upgrading the storage of library stores district to show so that no matter set-top box is set, or adopt the character library of acquiescence library stores district's storage to show, can ensure in the follow-up flow process, the set-top box character library normally starts, and the mess code demonstration do not occur.
Step 104 receives transport stream and processes, and reads the character library display strategy of setting, chooses character library corresponding to character library display strategy, is carried in the transport stream of processing to export.
In this step, set-top box is after receiving the transport stream such as audio frequency and video, transport stream is carried out respective handling, according to the character library display strategy that is arranged in the set-top box, obtain renewal library stores district corresponding to character library display strategy or acquiescence library stores district, from upgrade library stores district or acquiescence library stores district, read character library, be carried at and export televisor in the transport stream of processing and show.
In the embodiment of the invention, for the method flow that upgrades the set-top box character library, after judgement writes the character library to be updated of upgrading the library stores district and writes successfully, can finish the renewal of set-top box character library; And after the content that triggers the content replacement renewal library stores district's storage that to give tacit consent to the storage of library stores district, also finished the renewal of set-top box character library.
In the practical application, the user also can be in the program viewing process, the character library display strategy that arranges in the set-top box is upgraded, after receiving the character library display strategy update instruction of user by the telepilot input, the character library that character library display strategy update instruction is corresponding is replaced character library corresponding to character library display strategy that arranges.For example, the character library that the character library display strategy that arranges in the current set-top box is corresponding is the acquiescence character library, the user need to select to upgrade the character library of the renewal upgrading of storing in the library stores district, then pass through telepilot, send character library display strategy update instruction to set-top box, the set-top box acquiescence character library that the character library display strategy of Set For Current is corresponding replaces with the character library of upgrading upgrading.
By as seen above-mentioned, the method of the renewal set-top box character library of the embodiment of the invention, the acquiescence library stores district of the character library that arranges when dispatching from the factory by the memory machine top box is set in set-top box, and the renewal library stores district of the character library of storage update upgrading, after upgrading the failure of library stores district renewal character library, the content replacement of giving tacit consent to the storage of library stores district is upgraded the content that the library stores district stores, avoided because writing the character library of failure, cause set-top box to start, or character library show mess code.Ensured when set-top box renewal character library can't start or mess code occur, can revert to initial character library, guaranteed the normal operation of set-top box character library.
The below lifts two specific embodiments, and the present invention is described in further detail.
Fig. 2 is the method flow schematic diagram that the present invention's one specific embodiment upgrades the set-top box character library.Referring to Fig. 2, this flow process comprises:
Step 201 arranges in advance acquiescence library stores district, A district and B district and upgrades the library stores district in set-top box;
In this step, the character library that the A district arranges when dispatching from the factory for the memory machine top box in acquiescence library stores district, the B district upgrades the library stores district and is used for storage by the character library of network renewal upgrading.Before set-top box was upgraded upgrading, the content that the B district upgrades the storage of library stores district was identical with the content of A district acquiescence library stores district storage, the character library that arranges when namely the memory machine top box dispatches from the factory.
Step 202 is downloaded character library to be updated with online mode by network, and character library to be updated is carried out cyclic redundancy check (CRC), judges whether check code is correct, if so, and execution in step 203, if not, execution in step 205;
In this step, be connected to the set-top box of network after receiving the instruction of user by the renewal character library of telepilot input, shown the character library downloading page sign in to by televisor, user's character library to be updated of selecting that uses a teleswitch is downloaded to set-top box by online mode.
Under can being placed into different types of character library, set-top box manufacturer in the WEB server, downloads for the user.
The purpose of carrying out cyclic redundancy check (CRC) is in order to ensure obtaining correct character library to be updated.
Step 203 judges whether write the character library to be updated of upgrading the library stores district in the B district writes successfully, if, execution in step 204, otherwise, trigger the content of the content replacement B district of A district acquiescence library stores district storage being upgraded the storage of library stores district, execution in step 204;
In this step, write the B district in character library to be updated and upgrade the library stores district when unsuccessful, trigger the content that the renewal library stores district, content replacement B district with the acquiescence library stores district storage of A district stores.Like this, mistake appears in character library to be updated, cause when the inner word-base data that upgrades upgrading of set-top box damages, the content recovery that the B district is upgraded the storage of library stores district is the setting before set-top box is dispatched from the factory, adopt the character library of B district renewal library stores district storage to show so that no matter set-top box is set, still adopt the character library of A district acquiescence library stores district storage to show, can ensure in the follow-up flow process, the set-top box character library normally starts, and the mess code demonstration do not occur.
Step 204, the character library that the B district upgrades the library stores district is set to character library corresponding to current display strategy;
In this step, by the display strategy update instruction that telepilot sends, the character library that successfully writes new library stores district, B district is arranged to character library corresponding to display strategy according to the user, shows at televisor.
Step 205, whether prompting user character library failed download is downloaded again, if so, and execution in step 202, if not, more new model exits network.
In this step, when receiving user's instruction of again downloading that operation selects that uses a teleswitch, come back to the character library downloading page, wait for that the required character library of user selection downloads; When receiving user's instruction of again not downloading that operation selects that uses a teleswitch, the more new model that directly exits network is carried out normal program viewing.
Fig. 3 is the method flow schematic diagram that another specific embodiment of the present invention upgrades the set-top box character library.Referring to Fig. 3, this flow process comprises:
Step 301 arranges in advance acquiescence library stores district, C district and D district and upgrades the library stores district in set-top box;
In this step, the character library that the C district arranges when dispatching from the factory for the memory machine top box in acquiescence library stores district, the D district upgrades the library stores district and is used for storage by the character library of USB renewal upgrading.Before set-top box was upgraded upgrading, the content that the D district upgrades the storage of library stores district was identical with the content of C district acquiescence library stores district storage, the character library that arranges when namely the memory machine top box dispatches from the factory.
Step 302 imports character library to be updated by USB, and character library to be updated is carried out cyclic redundancy check (CRC), judges whether check code is correct, if so, execution in step 303, if not, flow process finishes;
In this step, the language character library of using the storage of FAT32 form USB flash disk to download in advance, the character library of download must satisfy: 1, character library is vector font library; 2, font file suffix ttf by name, name is called font.ttf; 3, font file is no more than 3MB.Set-top box by USB interface with after USB flash disk is connected, the font file of the suffix of storing in automatic search USB flash disk ttf by name, and import wherein by USB.
The purpose of carrying out cyclic redundancy check (CRC) is in order to ensure obtaining correct character library to be updated.
Step 303 judges whether write the character library to be updated of upgrading the library stores district in the D district writes successfully, if, execution in step 304, otherwise, trigger the content of the content replacement D district of C district acquiescence library stores district storage being upgraded the storage of library stores district, execution in step 304;
In this step, write the D district in character library to be updated and upgrade the library stores district when unsuccessful, trigger the content that the renewal library stores district, content replacement D district with the acquiescence library stores district storage of C district stores.Like this, mistake appears in character library to be updated, cause when the inner word-base data that upgrades upgrading of set-top box damages, the content recovery that the D district is upgraded the storage of library stores district is the setting before set-top box is dispatched from the factory, adopt the character library of D district renewal library stores district storage to show so that no matter set-top box is set, still adopt the character library of C district acquiescence library stores district storage to show, can ensure in the follow-up flow process, the set-top box character library normally starts, and the mess code demonstration do not occur.
Step 304, the character library that the D district upgrades the library stores district is set to character library corresponding to current display strategy;
In this step, by the display strategy update instruction that telepilot sends, the character library that successfully writes new library stores district, D district is arranged to character library corresponding to display strategy according to the user, shows at televisor.
Fig. 4 is the structural representation of embodiment of the invention set-top box, and referring to Fig. 4, set-top box comprises: interface 401, judgement detection module 402, command reception execution module 403, font file update module 404; Wherein,
Interface 401 is used for inputting character library to be updated, character library to be updated is imported judge detection module 402;
Judge detection module 402, be used for character library to be updated is carried out cyclic redundancy check (CRC), after the cyclic redundancy check (CRC) success, should character library to be updated export command reception execution module 403 to;
Command reception execution module 403, the character library to be updated that is used for receiving writes the renewal library stores district of font file update module 404, and character library to be updated writes upgrades the failure of library stores district, to font file update module 404 output trigger messages;
Font file update module 404 comprises for the acquiescence library stores district of storage acquiescence character library and the renewal library stores district of storage update character library, receives trigger message, upgrades the content of library stores district storage with the content replacement of acquiescence library stores district's storage.
Interface 401 comprises network interface and USB interface, network interface is used for by network character library to be updated being downloaded to judgement detection module 402 in online mode, USB interface is used for by being inserted in USB flash disk wherein, the to be updated character library of pre-save in USB flash disk is imported judge detection module 402.
After the cyclic redundancy check (CRC) failure to the character library to be updated of network interface input, judge that whether again detection module 402 is used for demonstration user's character library failed download information and Download Info; Interface 401 is used for receiving the again Download Info that the user chooses, and sends to the webserver by online mode.And after the cyclic redundancy check (CRC) failure of the character library to be updated that USB interface is imported, finish character library and upgrade.
Further, set-top box also comprises transport stream processing module 405, and transport stream processing module 405 is used for receiving transport stream and processes, and reads the character library display strategy of setting, chooses character library corresponding to character library display strategy, is carried in the transport stream of processing to export.
The invention provides a kind of method and set-top box of upgrading the set-top box character library, before carrying out the character library renewal, acquiescence library stores district is set in set-top box font file update module and upgrades the library stores district, the character library that acquiescence library stores district arranges when dispatching from the factory for the memory machine top box, renewal library stores district passes through network for storage or USB upgrades the character library of upgrading.Upgrading in the escalation process character library to be updated in set-top box writes when upgrading the failure of library stores district, export trigger message by the command reception execution module to the font file update module, after the font file update module receives information, upgrade the content of library stores district storage with the content replacement of acquiescence library stores district's storage in the font file update module.Like this, mistake appears in character library to be updated, cause when the inner word-base data that upgrades upgrading of set-top box damages, be setting before set-top box is dispatched from the factory with the content recovery that upgrades the storage of library stores district, adopt the character library of upgrading the storage of library stores district to show so that no matter set-top box is set, or adopt the character library of acquiescence library stores district's storage to show, can ensure in the follow-up flow process, the set-top box character library normally starts, and the mess code demonstration do not occur.
The above is preferred embodiment of the present invention only, is not for restriction protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. a method of upgrading the set-top box character library is characterized in that, comprising:
Acquiescence library stores district is set in set-top box in advance and upgrades the library stores district;
Receive the character library to be updated of input, this character library to be updated is carried out cyclic redundancy check (CRC), after the cyclic redundancy check (CRC) success, should character library to be updated write renewal library stores district;
Confirm that character library to be updated writes the district's failure of renewal library stores, with the content of content replacement renewal library stores district's storage of giving tacit consent to the storage of library stores district.
2. method according to claim 1, wherein,
The character library that arranges when described acquiescence library stores district memory machine top box dispatches from the factory, the character library of upgrading is upgraded in the storage of described renewal library stores district by network or USB;
Before set-top box was upgraded upgrading, the content of upgrading the storage of library stores district was identical with the content of acquiescence library stores district's storage.
3. method according to claim 2, wherein, described character library to be updated downloads to set-top box by online mode from network, and described method further comprises:
If whether again cyclic redundancy check (CRC) failure shows user's character library failed download information and Download Info;
Receive the again Download Info that the user chooses, download described character library to be updated by online mode.
4. method according to claim 2, wherein, described renewal character library is pre-stored in USB flash disk, imports set-top box by USB interface, and described method further comprises:
If the cyclic redundancy failure directly finishes to upgrade the character library pattern.
5. according to claim 3 or 4 described methods, wherein, upgrade the step of content of library stores district storage at described content replacement with the district's storage of acquiescence library stores after, described method further comprises:
Receive transport stream and process, read the character library display strategy of setting, choose character library corresponding to character library display strategy, be carried in the transport stream of processing and export.
6. a set-top box is characterized in that, comprising: interface, command reception execution module, font file update module, judgement detection module; Wherein,
Interface is used for inputting character library to be updated, character library to be updated is imported judge detection module;
Judge detection module, be used for character library to be updated is carried out cyclic redundancy check (CRC), after the cyclic redundancy check (CRC) success, should character library to be updated export the command reception execution module to;
The command reception execution module, the character library to be updated that is used for receiving writes the renewal library stores district of font file update module, and character library to be updated writes upgrades the failure of library stores district, to font file update module output trigger message;
The font file update module comprises for the acquiescence library stores district of storage acquiescence character library and the renewal library stores district of storage update character library, receives trigger message, upgrades the content of library stores district storage with the content replacement of acquiescence library stores district's storage.
7. set-top box according to claim 6 is characterized in that, described interface comprises network interface and USB interface,
Network interface is used for by network character library to be updated being downloaded to described judgement detection module in online mode;
USB interface is used for by being inserted in USB flash disk wherein, and the to be updated character library of pre-save in USB flash disk imported described judgement detection module.
8. set-top box according to claim 7, it is characterized in that, whether again described judgement detection module is further used for after the cyclic redundancy check (CRC) failure to the character library to be updated of described network interface input, show user's character library failed download information and Download Info; Described interface is further used for receiving the again Download Info that the user chooses, and sends to the webserver by online mode.
9. set-top box according to claim 7 is characterized in that, described judgement detection module is further used for finishing character library and upgrading after the cyclic redundancy check (CRC) failure of the character library to be updated that described USB interface is imported.
10. according to claim 6 to 9 each described set-top box, it is characterized in that, further comprise:
The transport stream processing module be used for to receive transport stream and processes, and reads the character library display strategy of setting, chooses character library corresponding to character library display strategy, is carried in the transport stream of processing to export.
CN2013102209680A 2013-06-05 2013-06-05 Set top box and method for updating character library of set top box Pending CN103365736A (en)

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