CN1936692A - Projector capable playing captions and caption playing method - Google Patents
Projector capable playing captions and caption playing method Download PDFInfo
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- CN1936692A CN1936692A CN 200510104969 CN200510104969A CN1936692A CN 1936692 A CN1936692 A CN 1936692A CN 200510104969 CN200510104969 CN 200510104969 CN 200510104969 A CN200510104969 A CN 200510104969A CN 1936692 A CN1936692 A CN 1936692A
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Abstract
This invention discloses a title-playing projector and the method how to play it, the projector was made up with several units: the electrical supply unit, the order inputting unit, the video inputting connecting port unit, the video handling unit, the display outputting unit, the central controlling unit, the title memory unit and the title handling unit. The method was that: the central control unit receives the information from the order inputting unit, and controls the title handling unit to read the information of the title memory unit. And at the same time the central control unit controls the video handling unit to read and processes the information from the video inputting port unit, later sends the treating information to the display outputting unit. The display outputting unit receives the title graphical information and makes it superimposed with the video information, finally outputs the display figure.
Description
Technical field
The present invention relates to a kind of projector and control method thereof, relate in particular to the method that a kind of projector that can play captions and projector play captions.
Background technology
Projector is a kind of display device commonly used, and it can be presented at the vision signal of various inputs on the screen in the mode of projection after treatment, thereby realizes that with lower cost large scale, high-quality image show.Because projector has characteristics such as brightness height, picture dimension is big, lifting picture dimension cost is low, own vol is little, be convenient to move, projection display apparatus has become the best image equipment of occasions such as meeting, teaching, exhibition.
Shown in Figure of description 1, present projector mainly comprises instruction input module, power module, Central Control Module, video input interface module, video processing module, demonstration output module.
Instruction input module can be keyboard or telepilot.Wherein, telepilot sends to Central Control Module in the mode of infrared signal with operational order, and infrared interface is set on the Central Control Module, is used to accept the operational order that telepilot is sent; Keyboard then directly links to each other with I/O (input and output) interface of Central Control Module, sends operational order to Central Control Module.
Power module provides working power for whole projector.
Central Control Module sends control command and gives video processing module after receiving the operational order of instruction input module, requires video processing module to handle video information.
Video processing module is after receiving the control command of Central Control Module, the video information that the video input interface module that receives is imported is handled, export video information to the demonstration output module after disposing, by showing output module output projected image.
In projector's use, often need in display image signals, show the additional content that some advertisements, information etc. are relevant with in progress image information or irrelevant, these contents normally occur with the form of captions.The image signal source of playing when projector is during from computing machine, can realize the generation and the stack of captions on computers by software, does not need other equipment; And when projector directly connects DVD or other video playback apparatus, because these these of equipment do not have the function that generates captions, modification that therefore can not be real-time and demonstration captions.
The way that addresses the above problem is to increase generation and the stack that subtitle processing apparatus realizes captions between video playback apparatus and projector, as title insert or film titler etc.Its working method is that the video equipment that will play is linked into subtitle processing apparatus as input source, and subtitle processing apparatus on the vision signal of video playback apparatus input, is exported the subtitle superposition that generates to new signal again.But this way causes projector equipment bulky, uses inconvenience, has also increased the cost of projector equipment simultaneously.
Summary of the invention
The present invention is directed to the shortcoming of prior art, a kind of projector and the captions player method that can play captions is provided.
The present invention includes power module, instruction input module, video input interface module, video processing module, demonstration output module, Central Control Module, captions memory module and captions processing module.
Described Central Control Module receives the operational order of instruction input module, and control captions processing module and video processing module require captions processing module and video processing module that caption information and video information are handled;
Described captions memory module is used to store the caption data information of desiring projection;
Described captions processing module reads the caption data information of storing in the captions memory module under the control of Central Control Module, and is corresponding subtitle graphic information with the caption data information processing, again subtitle graphic information is sent to the demonstration output module;
Described demonstration output module is synthetic with the video information stack that receives with the subtitle graphic information that receives, the output display graphics.
The present invention also provides a kind of method that the above-mentioned projector that can play captions carries out the captions broadcast of using, and step comprises:
Earlier write caption data information to the captions memory module by computing machine;
Instruction input module sends to Central Control Module with operational order after receiving user's operational order;
After Central Control Module receives the operational order of instruction input module, send the captions processing command to the captions processing module, the captions processing module reads the caption data information of storing in the captions memory module, and be corresponding subtitle graphic information with the caption data information processing, again subtitle graphic information is sent to the demonstration output module;
Central Control Module sends the Video processing order to video processing module, and video processing module reads the video information of video input interface module input and handles, and processed video information is sent to the demonstration output module;
Show that output module is synthetic with the video information stack that receives with the subtitle graphic information that receives, the output display graphics.
The present invention has increased the captions playing function having now under the constant situation of projector's volume, and product-specific investments is little, and is extremely easy to use.
Description of drawings
Fig. 1 is a projector architecture synoptic diagram in the prior art;
Fig. 2 is a projector architecture synoptic diagram of the present invention;
Fig. 3 carries out the method flow diagram that captions are play for the present invention;
Fig. 4 carries out the method flow diagram that captions are handled for captions processing module among the present invention;
Fig. 5 is captions processing module structural representation among the present invention.
Embodiment
Shown in Figure of description 2, the present invention includes:
Central Control Module 6, described Central Control Module 6 receives the operational order of instruction input module 2, and control captions processing module 4 and video processing module 7 require 7 pairs of caption informations of captions processing module 4 and video processing module and video information to handle;
Video input interface module 8, described video input interface module 8 is used to provide the input interface of external video information;
Captions processing module 4, described captions processing module 4 is under the control of Central Control Module 6, read in the captions memory module 3 the caption data information of storage, and be corresponding subtitle graphic information, again subtitle graphic information is sent to demonstration output module 9 the caption data information processing;
Show output module 9, described demonstration output module 9 is synthetic with the video information stack that receives with the subtitle graphic information that receives, the output display graphics.
Shown in Figure of description 5, described captions processing module 4 comprises:
Automatically play judge module 401, the broadcast that is used to judge captions is automatically or by manually controlling;
Caption data read module 402 is used for reading caption information from captions memory module 3;
Caption data form judge module 403 is used to judge whether the form of the caption data information that reads is legal, and promptly whether judgment data information belongs to 404 energy recognition data of captions processing module type;
Subtitle graphic data sending module 405 is used for the subtitle graphic after 404 processing of captions synthesis module is sent to demonstration output module 9, by showing output module 9 and video information stack broadcast;
Captions finish judge module 406, are used to judge whether whole subtitle graphic information finish.
Shown in Figure of description 3, use projector of the present invention and carry out the method that captions are play, comprise the steps:
Step 101, beginning;
Step 102, instruction input module 2 receive the play operation instruction, and this operational order is sent to Central Control Module 6;
Step 103, after Central Control Module 6 receives the operational order of instruction input module 2, the order of sending deal with data to captions processing module 4 and video processing module 7;
Step 104, after captions processing module 4 receives the instruction of Central Control Module 6, read in the captions memory module 3 the caption data information of storage, and be corresponding subtitle graphic information, again subtitle graphic information is sent to demonstration output module 9 the caption data information processing;
Step 105 after video processing module 7 receives the instruction of Central Control Module 6, reads the video information of video input interface module 8 input and handles, and processed video information is sent to show output module 9;
Step 106 shows that output module 9 is synthetic with the video information stack that receives with the subtitle graphic information that receives, the output projected image;
Step 107 judges whether the content of required Projection Display is all finished, and as all finishing, then execution in step 108; Otherwise, execution in step 103;
Step 108, projection finishes.
Before carrying out above steps, should first execution in step 109 and step 110, step 109 promptly writes caption data information by computing machine to captions memory module 3, and step 110 is video input interface module 8 enter video informations.
Shown in Figure of description 4, in the above-mentioned steps 104, captions processing module 4 processing caption data message processes specifically comprise:
Step 201, beginning;
Step 202 judges whether to play automatically captions by automatic broadcast judge module 401, and in this way, then execution in step 204; Otherwise, execution in step 203;
Step 203, if receive play command, then execution in step 204; Otherwise, re-execute step 202;
Step 204 reads the first row caption data information in the captions memory module 3 by caption data read module 402, comprises the subtitle graphic data of captions, captions character index data and captions control data;
Step 205 judges that by first form of going caption data information that 403 pairs of caption data judge modules read as legal, then execution in step 207; Otherwise, execution in step 206;
Step 206 judges whether to receive the end play command, and in this way, then execution in step 210; Otherwise, execution in step 204;
Step 207, generate the captions of image conversion according to captions character index data that read and captions view data by captions synthesis module 404, it is the subtitle elementary figure, at this moment, captions are one group of character graphicss that waits size of black, then according to the control data of captions, the captions of each character and whole sentence are carried out the processing of effects such as color, size, position, thereby finish the work of creating captions;
Step 208 is sent to subtitle graphic information by subtitle graphic data sending module 405 and to show output module 9, showing on the output module 9, if captions are static, then subtitle superposition to output image; If captions are dynamic, then will be based on the captions image, be that parameter is carried out computing and calculated whole subtitle graphic with the time, position etc., on the output image that is added to then;
Step 209 finishes judge module 406 by captions and judges whether the play operation process of captions finishes, and in this way, then execution in step 211; Otherwise, execution in step 210;
Step 210 reads next line caption data information in the captions memory module 3, execution in step 207 by caption data read module 402;
Step 211 finishes the processing operation of captions.
The data message of captions among the present invention, comprise captions content, show number of times, display speed, interval time, display position, display format etc., all handle by computing machine, the mode that can discern subtitle graphic data, captions character index data and captions control data and use with captions processing module 4 by the software on the computing machine saves as subtitle file, deposits in the captions memory module 3.
Below the present invention will be further described.
Embodiment one: captions memory module 3 is the intrinsic module of inside of the present invention, also a zone can be set on nonvolatile memory of the present invention, make it to store the captions data message, caption information and OSD (on-screen display, be on-screen menu) in the required Char data of using deposit together, but the nonvolatile memory space does not generally enough all store all characters in the present embodiment.
The embedded system that each module is moved in the present embodiment is not directly supported the demonstration of character, but needs earlier the character that will show to be stored as graphics mode, shows in the mode that shows dot pattern then.
Because the nonvolatile memory space is limited, so, when the OSD of projector is provided with, make full use of the nonvolatile memory space of embedded system, as much as possible is character conversion that graphics mode is stored on the nonvolatile memory.Except when the OSD of projector is provided with, finishing storage, also can make on computers earlier, the character that needs is converted into graph data, receives these data by control interface by the embedded system in the projector when working and be written in the nonvolatile memory in projector.
After projector's work, if show certain character, determine at first that then this character graph of a correspondence is stored in the address in the nonvolatile memory, obtain this character graph of a correspondence and demonstration according to this address then.
Except the character graph of a correspondence data that needs show, also have control data in the caption data, comprising: show number of times, display speed, display time intervals, display position, display format etc.Show that wherein number of times refers to the number of times that these captions need be shown altogether.Speed parameter when display speed is represented demonstration that these captions are rolled, overturn.Display time intervals is represented interlude between the double demonstration.Position when display position is represented this captions demonstration in screen.Display format is represented the form that this captions show, comprising: fixed position, upset, roll, fade in, fade out etc., can develop different algorithms according to the difference of embedded system performance and realize these special-effects.
The character index data that also will comprise in addition, captions in caption data.These data are the actual content of captions and have been converted to the index that the memory address of the character of graphics mode storage links, each data cell is all pointed to a storage unit of subtitle graphic data in the nonvolatile memory, and the combination of these index datas has just determined the content of captions.
Captions are set, for the present embodiment, need to guarantee that the character graph of a correspondence of using in the captions all is stored in the nonvolatile memory.When on computers captions being set, caption content is set at first, promptly the address that successively the character graph of a correspondence of captions is stored in the nonvolatile memory is the sequence of content as the code storage of character; Each control data parameter is set then, and the control interface by projector after finishing sends to projector.The non-volatile storer of depositing can be stored in after projector receives and also volatile storage can be stored in.
After projector receives the captions control command, realize on the screen that captions show thereby just read the character graph of a correspondence according to the address in the caption content data successively and be shown to according to the setting of captions control data parameter.
The advantage of present embodiment is just logically to have increased the captions memory module, and the hardware system of projector itself is without any variation.This makes hardware development cost and production cost all be consistent with original projector, and the mode by software upgrading realizes this function easily.Its deficiency is so the character graphic data that can prestore is limited, to have the character that can not show because the nonvolatile memory space of projector is all limited at present unavoidably when practical application.
Embodiment two: at the deficiency among the embodiment one, present embodiment has been made some modifications.
The character graphics that projector may not use captions when OSD is provided with is loaded in the nonvolatile memory, but be the graph of a correspondence data carrying out the character conversion that captions use in again captions when making, then subtitle graphic data, captions character index data and captions control data are loaded in the nonvolatile memory together.
The advantage of present embodiment is to break through and loads the restriction when making of captions that character graphic data causes earlier, but because the nonvolatile memory space is limited, so the length of captions still is subjected to certain limitation, promptly can not makes above the captions of certain-length and can not make the captions that character quantity surpasses restriction.
Embodiment three: at the deficiency of above two embodiment, present embodiment has been made some modifications.
Subtitle file is not disposable being loaded in the projector, but each a certain amount of loading several times.Promptly when captions are made, determine captions length and number of characters quantitative limitation, whole character is divided into a plurality of paragraphs.When projector works, connect computing machine all the time.When showing captions, at first in the projector that one section captions is loaded, when this section captions show or demonstration back one section captions are loaded in the projector after finishing, can realize not having the captions of length and number of characters restriction like this.
Embodiment four: above three embodiment, all need by computing machine and projector be connected to come loading caption, made some modifications in the present embodiment, can make projector's divorced from computer come loading caption.
Present many projectors can realize some expanded functions by interface.As: realize picture playing, realize wireless display etc. by USB interface by pcmcia interface connection wireless network card.
Complete on computers behind the captions, subtitle file is copied to this external captions memory module 3, after projector's work, captions memory module 3 is inserted on the corresponding interface of projector.
Projector both can copy caption data in the inner nonvolatile memory or volatile storage to, also can read from captions memory module 3 when needs use.
Embodiment five: above four embodiment can realize the demonstration of captions, but these captions all are the captions that do not have synchronization association with video image content, mainly be advertising message, prompting etc.,, also can't realize for captions that need be synchronous with video image content.
Built-in equipment such as DVD player, card reader in the part projector are arranged at present, for this complete built-in projector, be to control by an opertaing device (telepilot and keyboard), all be to handle after these user control commands send by the Central Control Module in the projector 6, like this, the Central Control Module 6 of projector just can be grasped the state and the playing progress rate of video equipments such as DVD player.
Based on this kind projector, when captions are made, just can be implemented in and show with video signal to have had the captions of synchronous corresponding relation in the projector by being set in the captions control data interval time between two captions and coming that by Central Control Module 6 video signal content and captions zero-time are done synchronous processing.
Claims (10)
1. projector that can play captions, comprise power module, instruction input module, video input interface module, video processing module, demonstration output module, Central Control Module, it is characterized in that, also comprise captions memory module and captions processing module, wherein:
Described Central Control Module receives the operational order of instruction input module, and control captions processing module and video processing module require captions processing module and video processing module that caption information and video information are handled;
Described captions memory module is used to store the caption data information of desiring projection;
Described captions processing module reads the caption data information of storing in the captions memory module under the control of Central Control Module, and is corresponding subtitle graphic information with the caption data information processing, again subtitle graphic information is sent to the demonstration output module;
Described demonstration output module is synthetic with the video information stack that receives with the subtitle graphic information that receives, the output display graphics.
2. a kind of projector that can play captions as claimed in claim 1 is characterized in that, the caption data information of described captions memory module storage is subtitle graphic data, captions character index data and captions control data.
3. a kind of projector that can play captions as claimed in claim 1 is characterized in that, described captions processing module comprises:
Automatically play judge module, the broadcast that is used to judge captions is automatically or by manually controlling;
The caption data read module is used for reading caption data information from the captions memory module;
Caption data form judge module is used to judge whether the form of the caption data information that reads meets the desired data layout of captions processing module;
The captions synthesis module is used for the caption data information that reads is handled, synthetic subtitle graphic;
The subtitle graphic data sending module is used for the subtitle graphic after the processing of captions synthesis module is sent to the demonstration output module, by showing output module and video information stack broadcast;
Captions finish judge module, are used to judge whether whole subtitle graphic information finish.
4. method of utilizing the described projector of claim 1 to play captions is characterized in that step comprises:
Write caption data information by computing machine to the captions memory module;
Instruction input module sends to Central Control Module with operational order after receiving user's operational order;
After Central Control Module receives the operational order of instruction input module, send the captions processing command to the captions processing module, the captions processing module reads the caption data information of storing in the captions memory module, and be corresponding subtitle graphic information with the caption data information processing, again subtitle graphic information is sent to the demonstration output module;
Central Control Module sends the Video processing order to video processing module, and video processing module reads the video information of video input interface module input and handles, and processed video information is sent to the demonstration output module;
Show that output module is synthetic with the video information stack that receives with the subtitle graphic information that receives, the output display graphics.
5. projector as claimed in claim 4 plays the method for captions, it is characterized in that, described to write caption data information by computing machine to the captions memory module be subtitle graphic data, captions character index data, captions control data.
6. projector as claimed in claim 4 plays the method for captions, it is characterized in that, before each step of described execution, should write caption data information by computing machine to the captions memory module earlier, by video input interface module enter video information.
7. projector as claimed in claim 4 plays the method for captions, it is characterized in that described captions processing module is carried out treatment step to captions, comprises
Automatically play judge module and judge it is to play captions automatically;
Read the row of first in captions memory module caption data information by the caption data read module;
The form of being judged the first row caption data information that reads by the caption data judge module is legal;
Finish the establishment of captions according to the caption data information that reads by the captions synthesis module;
By the subtitle graphic data sending module subtitle graphic information is sent to the demonstration output module.
8. projector as claimed in claim 7 plays the method for captions, it is characterized in that, described automatic broadcast judge module judges it is to play automatically in the captions step, if judge it is not to play captions automatically, then after receiving play command, read the first row caption data information in the captions memory module again.
9. projector as claimed in claim 7 plays the method for captions, it is characterized in that after the subtitle graphic data sending module sent to the demonstration output module with subtitle graphic information, captions finished judge module and judge whether the play operation process of captions finishes, in this way, then finish to play; Otherwise the caption data read module reads the caption data information in the captions memory module again.
10. projector as claimed in claim 7 plays the method for captions, it is characterized in that, described caption data judge module is judged in the form step of the first row caption data information that reads, if judge that the form of caption data information is illegal, then judge whether to receive the end play instruction, in this way, then finish to play; Otherwise the caption data read module reads the caption data information in the captions memory module again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101049694A CN100517051C (en) | 2005-09-22 | 2005-09-22 | Projector capable playing captions and caption playing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101049694A CN100517051C (en) | 2005-09-22 | 2005-09-22 | Projector capable playing captions and caption playing method |
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| CN1936692A true CN1936692A (en) | 2007-03-28 |
| CN100517051C CN100517051C (en) | 2009-07-22 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860697A (en) * | 2010-05-07 | 2010-10-13 | 无锡中星微电子有限公司 | Method and device for adding video screen display information |
| CN102004314A (en) * | 2009-09-02 | 2011-04-06 | 索尼公司 | Picture/character simultaneously displaying device and head mounted display device |
| CN102098454A (en) * | 2009-12-09 | 2011-06-15 | 新奥特（北京）视频技术有限公司 | Real-time caption broadcasting system and method |
| CN102724446A (en) * | 2011-12-30 | 2012-10-10 | 新奥特（北京）视频技术有限公司 | Match site caption timing output method |
| CN103151021A (en) * | 2013-02-22 | 2013-06-12 | 广州视源电子科技股份有限公司 | Data display method and test method of display device |
| CN103369255A (en) * | 2013-08-02 | 2013-10-23 | 苏州科达科技股份有限公司 | Device and method for realizing superimposition of subtitles |
| CN102098446B (en) * | 2009-12-09 | 2015-05-27 | 新奥特（北京）视频技术有限公司 | Real-time data storage method and device for caption broadcasting system |
| CN105765990A (en) * | 2013-11-18 | 2016-07-13 | 海伦·布莱德里·列侬 | Video broadcasting system and method for transmitting video content |
| CN106933006A (en) * | 2017-05-03 | 2017-07-07 | 苏州和氏设计营造股份有限公司 | The old captions expanding unit of numeral exhibition |
| CN110557578A (en) * | 2019-09-29 | 2019-12-10 | 苏州科达科技股份有限公司 | Subtitle display device and method for LED spliced screen and related equipment |
| CN112866780A (en) * | 2019-11-28 | 2021-05-28 | 西安诺瓦星云科技股份有限公司 | Subtitle circular display method and device, video processing equipment system and storage medium |
| CN112887781A (en) * | 2021-01-27 | 2021-06-01 | 维沃移动通信有限公司 | Subtitle processing method and device |
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2005
- 2005-09-22 CN CNB2005101049694A patent/CN100517051C/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004314A (en) * | 2009-09-02 | 2011-04-06 | 索尼公司 | Picture/character simultaneously displaying device and head mounted display device |
| CN102004314B (en) * | 2009-09-02 | 2013-04-24 | 索尼公司 | Picture/character simultaneously displaying device and head mounted display device |
| CN102098454B (en) * | 2009-12-09 | 2014-11-05 | 新奥特（北京）视频技术有限公司 | Real-time caption broadcasting system and method |
| CN102098454A (en) * | 2009-12-09 | 2011-06-15 | 新奥特（北京）视频技术有限公司 | Real-time caption broadcasting system and method |
| CN102098446B (en) * | 2009-12-09 | 2015-05-27 | 新奥特（北京）视频技术有限公司 | Real-time data storage method and device for caption broadcasting system |
| CN101860697A (en) * | 2010-05-07 | 2010-10-13 | 无锡中星微电子有限公司 | Method and device for adding video screen display information |
| CN102724446A (en) * | 2011-12-30 | 2012-10-10 | 新奥特（北京）视频技术有限公司 | Match site caption timing output method |
| CN103151021B (en) * | 2013-02-22 | 2015-04-22 | 广州视源电子科技股份有限公司 | Data display method and test method of display device |
| CN103151021A (en) * | 2013-02-22 | 2013-06-12 | 广州视源电子科技股份有限公司 | Data display method and test method of display device |
| CN103369255A (en) * | 2013-08-02 | 2013-10-23 | 苏州科达科技股份有限公司 | Device and method for realizing superimposition of subtitles |
| CN105765990A (en) * | 2013-11-18 | 2016-07-13 | 海伦·布莱德里·列侬 | Video broadcasting system and method for transmitting video content |
| CN106933006A (en) * | 2017-05-03 | 2017-07-07 | 苏州和氏设计营造股份有限公司 | The old captions expanding unit of numeral exhibition |
| CN106933006B (en) * | 2017-05-03 | 2019-08-23 | 苏州和氏设计营造股份有限公司 | Number opens up old subtitle expanding unit |
| CN110557578A (en) * | 2019-09-29 | 2019-12-10 | 苏州科达科技股份有限公司 | Subtitle display device and method for LED spliced screen and related equipment |
| CN112866780A (en) * | 2019-11-28 | 2021-05-28 | 西安诺瓦星云科技股份有限公司 | Subtitle circular display method and device, video processing equipment system and storage medium |
| CN112866780B (en) * | 2019-11-28 | 2023-09-08 | 西安诺瓦星云科技股份有限公司 | Subtitle cyclic display method and device, video processing equipment system and storage medium |
| CN112887781A (en) * | 2021-01-27 | 2021-06-01 | 维沃移动通信有限公司 | Subtitle processing method and device |
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| CN100517051C (en) | 2009-07-22 |
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