CN100421458C - Display caption playing system - Google Patents
Display caption playing system Download PDFInfo
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- CN100421458C CN100421458C CNB2004100420625A CN200410042062A CN100421458C CN 100421458 C CN100421458 C CN 100421458C CN B2004100420625 A CNB2004100420625 A CN B2004100420625A CN 200410042062 A CN200410042062 A CN 200410042062A CN 100421458 C CN100421458 C CN 100421458C
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Abstract
The present invention provides a playing system arranged on a playing, for example, a subtitle-hidden playing system arranged on an optical medium playing device. In order to display the state of the playing devices, all common playing devices have an information displaying function. When a playing device reads out medium signals from a storage medium and outputs video signals in the medium signals to a display, the present invention can analyze subtitle-hidden signals in the medium signals to take out character signals from the subtitle-hidden signals, and the characters of hidden subtitles are displayed as the display information of the playing device by using the information display function of the playing device to achieve the purpose of playing the hidden subtitles.
Description
Technical field
The present invention relates to the Play System of a kind of framework, particularly relate to the closed caption Play System that a kind of information display function that utilizes playing device shows closed caption in a playing device.
Background technology
In modern information-intensive society, can be the data of audio-visual multimedia with abundant dynamic image and SoundRec, present various information, knowledge, news, amusement or the like to adopt colourful visual and sound effects more.The audio-visual multimedia data can be stored in various optics, magnetic or the electron storage medium, CD (CD for example, Compact Disc), digital multi-purpose CD (DVD, Digital VersatileDisc), hard disk, electronic memory (similarly being random access memory) and flash memory or the like.In the time the audio-visual multimedia data playback that stores will being come out, the audio-visual multimedia data that can cooperate suitable playing device will be stored in the Storage Media are read, be converted into the electric signal of appropriate format, transfer to display (with loud speaker or the like system) again, give the user so that the content of audio-visual multimedia data is specifically presented in the mode of graphic picture (and sound).
In some cases, the audio-visual multimedia data need present the data of " captions " this literal kenel, and these lteral datas and dynamic image are presented in the mode of graphic picture in the lump.For instance, concerning the sense of hearing has the user of obstacle, because of its can't uppick audio-visual multimedia data the sound part, may just can't learn all information in the audio-visual multimedia data fully.In order to adapt to this class demand, information dealer has also adopted so-called " closed caption " specification (close-caption).Under this specification, some acoustic information in the audio-visual multimedia data is used Word message instead and is described, and the dynamic image of form that these Word messages just can captions and audio-visual multimedia data itself presents in the lump and gives the user.Because the closed caption of this class not necessarily each user all needs, so it is designed to the captions of " concealed ", only when the user has special requirement, just can show.
Please refer to Fig. 1.Fig. 1 is the schematic diagram that the graphic picture Im of a closed caption Ct and a dynamic image presents jointly.As previously mentioned, closed caption Ct can literal describes personage's voice in the audio-visual multimedia data, background sound or the like acoustic information, assists to have the user who needs more to understand the content of audio-visual multimedia data.Just as shown in Figure 1, in general, when presenting closed caption, regular meeting is shown in the word content of closed caption in the background of dark color (as black) square frame.
In known technology, presenting of closed caption need all be provided with corresponding hardware at playing device and display two ends, could demonstrate closed caption under the situation of both collocation.Please refer to Fig. 2; Fig. 2 is the function block schematic diagram of known closed caption Play System 10 frameworks in 14 of a playing device 12 and displays.Playing device 12 can be a disk player (similarly being the digital multi-purpose disk player), is provided with a drive system 16, an access module 18, a coding module 20 in it.14 of displays can be a TV, and it is provided with the screen 24 of a display graphics picture; In addition, for framework goes out known closed caption Play System 10, also must be provided with a decoding module 22 in the display 14.And known closed caption Play System 10 promptly to be coding module 20 by the playing device end cooperate the decoding module 22 of display ends to realize jointly.
The medium signal 26 of electronic form be changed, be read as to drive system 16 in the playing device 12 can through access module 18 with it by in the Storage Media (similarly being CD, digital multi-purpose CD etc.) the audio-visual multimedia data that store being read.This electronic medium signal 26 promptly includes video signal 25A and closed caption signal 25B; Wherein, video signal 25A records the dynamic audio and video information of audio-visual multimedia data, and closed caption signal 25B promptly records the Word message content of closed caption, and closed caption present form (similarly being font, literal size etc.).Video signal 25A in the medium signal 26 and closed caption signal 25B can be encoded to the receivable display signal 28 of display end via coding module 20, transfer to display 14 again.
Those skilled in the art knows, and the screen of display is to be combined into whole graphic picture with the scan line that upgrades line by line on the screen, gives the user so that dynamic image is presented; So the receivable video signal display signal of display end is an image information of describing dynamic image with the form of scan-line data.For instance, under the specification of NTSC (National Television System Committee), each picture can include 525 scan lines, each scan line have the number of scanning lines of a correspondence write down according to this this scan line the picture that should present.But come the required time of flyback retrace in order to adapt to the picture vertical direction, have in these 525 scan lines tens of scan lines can be on screen the actual graphic picture that presents, these scan lines also just become not visible scan line; And the actual scan line that can present graphic picture on screen then is visual scan line.The visual scan-line data of visual scan line correspondence will write down the picture that this scan line will present; Relatively, the not visible scan-line data of not visible scan line correspondence just can be used for carrying extra information.And in known closed caption Play System 10, promptly be the relevant information that writes down closed caption with not visible scan-line data (similarly being the 21st scan line under the NTSC specification).
In Fig. 2, promptly include many visual scan-line data 27B and not visible scan-line data 27A in the display signal 28; And in known technology, the information of closed caption just is encoded among the not visible scan-line data 27A.In order to show closed caption, display 14 in the known technology must be equiped with corresponding closed caption decoding module 22, from not visible scan-line data, the related text information decoding of closed caption being come out, could be on screen 24 word content of closed caption be presented together with the dynamic image frame that writes down among the visual scan-line data 27B.Certainly,, just can control display 14, decoding module 22 is decommissioned if the user do not need to show closed caption because the relevant information of closed caption just was encoded in the not visible scan-line data originally, naturally with regard to can not actual displayed on screen 24.
Comprehensive above-mentioned discussion is encoded in the not visible scan-line data because known closed caption Play System 10 is relevant informations with closed caption as can be known, so also need decoding module 22 cooperations of display end, the closed caption actual displayed could be come out.In other words, when the user will utilize this special function of closed caption, also need to be provided with the display collocation of closed caption decoding module, could use the information of closed caption.So, just increased the cost of known closed caption Play System, allowed the user can not make things convenient for, use at large this function of closed caption.In addition, known closed caption Play System also can't be decided in its sole discretion the display mode (similarly be the font, color of captions, position in picture, size or the like) of closed caption by the user.As previously mentioned, in the medium signal 26 that access module 18 provides, closed caption signal 25B itself has just specified the display mode of closed caption, and coding module 20 will enroll not visible scan-line data with the relevant information of closed caption according to the display mode of its appointment, determined the form of closed caption actual displayed thus, can't decide in its sole discretion by the user.Moreover the user controls the broadcast of controlling the audio-visual multimedia signal at the playing device end, but will control at the display end and could control closed caption and whether show the puzzlement that this also can cause the user to control.
Summary of the invention
Therefore, main purpose of the present invention promptly is to provide a kind of closed caption display system that does not need the decoding of display end, to overcome the shortcoming of known technology.
In general, all be provided with function of information display in the playing device, so that the operating state of playing device and the graphic picture of audio-visual multimedia signal together are presented on the display, vision user's interface of playing device just are provided on display in the equivalence.And the present invention utilizes the information display function in the playing device to show closed caption.When playing device is obtained the medium signal from Storage Media after, the present invention can utilize the closed caption signal in the mode analyzing medium signal of software analysis (software parsing), the Word message of closed caption in the closed caption signal is taken out, mapping (mapping) is a literal, and the information display function that utilizes playing device again is presented at the literal of these closed captions on the display.In other words, the present invention is that the literal of closed caption is used as is operating state a kind of of playing device, presents the literal of closed caption on display by the information display function of playing device.
Because the present invention utilizes the information display function of playing device to show closed caption, it is the some of viewable pictures that these closed captions can be taken as, and can directly be sneaked in the visual scan-line data and transferred to display by playing device; So, even the display end is not equiped with the decoding module of closed caption, also can be on the screen of display end closed caption be presented and give the user.When enforcement is of the present invention, because the present invention can directly analyze out in the mode of software analysis with the word content of closed caption in the closed caption signal, the literal that the font that can provide with information display function shows closed caption is provided, so the present invention can additionally provide system's enough and to spare, allow the user can order the mode (similarly being size, form, color and closed caption position in picture of font or the like) that closed caption shows certainly.In addition, present closed caption, directly control, whether show with regard to the may command closed caption at the playing device end so the user needs only because the present invention is a information display function with the playing device end.
Description of drawings
The schematic diagram that Fig. 1 presents for closed caption.
Fig. 2 is the function block schematic diagram of known closed caption Play System.
Fig. 3 is the function block schematic diagram of closed caption Play System of the present invention.
The reference numeral explanation
10,30 Play Systems, 12,32 playing devices
14,34 displays, 16,36 drive systems
18,38 access modules, 20,40 coding modules
22 decoding modules, 24,42 screens
25A, 45A video signal 25B, 45B closed caption signal
26,46 medium signal 27A, the not visible scan-line data of 47A
Visual scan-line data 50 analysis modules of 27B, 47B
52 information display module, 53 information video signals
54 control modules, 55 state signals
Embodiment
Please refer to Fig. 3.Fig. 3 is closed caption Play System 30 frameworks of the present invention in the function block schematic diagram of a playing device 32.Playing device 32 can be the playing device of a disk player (similarly being the digital multi-purpose disk player) or other Storage Media, so that the audio-visual multimedia data in the Storage Media are read, and shows by a display 42 and to give the user.Be provided with a drive system 36, an access module 38, a control module 54, information demonstration (OSD) module 52 and a coding module 40 in the playing device 32; In order to realize Play System 30 of the present invention, also be provided with an analysis module 50 in the playing device 32 in addition.Drive system 36 can be read out the audio-visual multimedia data by Storage Media (similarly being optical storage media of disc or the like); According to the result who reads, access module 38 just can produce corresponding electronic form medium signal 46.Can include video signal 45A and closed caption signal 45B in the medium signal 46, wherein, video signal 45A promptly records information such as dynamic image, sound in the audio-visual multimedia data; Closed caption signal 45B then records the relevant information of closed caption.Control module 54 then is used for the overall operation of controls playing device 30.
As previously mentioned, modern playing device is equipped with the function that information shows (OSD), is shown in the operating state with playing device on the screen of display; And in playing device 32, information display module 52 promptly is used for realizing function of information display.Control module 54 can produce corresponding state signal 55 according to the operating state of playing device 32, with the input signal as information display module 52; And information display module 52 just can produce corresponding information video signal 53 according to its received input signal.Coding module 40 can be display 34 receivable display signals 48 with the information video signal 53 of information display module 52 and the video signal 45A hybrid coding in the audio-visual multimedia data, exports display 42 again to.Wherein, video signal 45A is corresponding to the program picture of dynamic image in the audio-visual multimedia signal, 53 information frames corresponding to the playing device state of information video signal; After coding module 40 together is encoded in display signal 48 with both, just can demonstrate the picture after information frame and program picture overlap on the screen 42 of display 34, allow the user also can understand the operating state of playing device 32 by screen 42.For instance, the information video signal of information display module 52 can be to be in normal play, reverse-play or playing the audio-visual multimedia data fast, at a slow speed with word content or the numeral device 32 that displays the play, or reproduction time, broadcast chapters and sections (chapter) or the like information.
Because itself will presenting, the information video signal 53 of information display module 52 gives the user, therefore coding module 40 can be directly with the content shuffling of information video signal 53 in the visual scan-line data 47B of display signal 48, but not among the not visible scan-line data 47A.So, when display 34 is presented in visual scan-line data 47B on the screen 42, just the information (operating state of playing device 32 just) of information video signal correspondence can be shown, realize the information display function of playing device 32.
The information display function that utilizes playing device 32 itself to be had can be realized closed caption display system 30 of the present invention.As previously mentioned, in the medium signal 46 that access module 38 is provided, its closed caption signal 46 records the relevant information of closed caption.For instance, in digital multi-purpose CD specification, just working out in its data format has one of user's data (user data), can be used to write down the closed caption signal, and it can further be subdivided into captions signal and controlling signal; Wherein, the captions signal is used for writing down the word content (similarly being the literal with ASCII coding) of closed caption, and whether controlling signal then is used for writing down the font, size, color, position, its background square frame of closed caption dark or for transparent or the like.When realizing closed caption display system 30 of the present invention, analysis module 50 just can utilize the mode of software analysis (software parsing), the captions signal that records word content among the closed caption signal 45B is analyzed out, and mapping (mapping) is to corresponding character signal 51.Next, literal signal 51 just can be used as the input signal of information display module 52, and by information display module 52 literal signal 51 being used as is the state that will show and enrolling to information video signal 53.So, when coding module 40 is encoding to display signal 48 with video signal 45A and information video signal 53, it is information content displayed and being incorporated into to visual scan-line data 47B that the word content of closed caption will be taken as, and then is presented on the screen 42 of display 34.
In other words, in the time will presenting closed caption, the present invention analyzes out with the essence word content in the closed caption signal with analysis module 50, and these literal being used as is content to be shown under the information display function and present by display 34 and to give the user again.Relatively, if the user need not use the function of closed caption, the user just can make analysis module 50 stop closed caption signal 45B is converted to literal signal 51 by to the controlling of playing device 32, and closed caption can not be revealed naturally.
Compared to known technology, playing closed caption with framework of the present invention has following advantage.At first, the present invention no longer needs the cooperation of display end closed caption decoding module; Even the display end is not equiped with the decoding module of closed caption, also can present closed caption by framework of the present invention.Also therefore, the present invention is minimized the cost of closed caption Play System and the complexity of enforcement.
In addition, the framework of the present invention mode that also can allow the user have enough and to spare to select closed caption to present.In known closed caption display system, the presentation mode of its closed caption can directly be controlled by the controlling signal in the closed caption signal, its coding module can be according to controlling signal directly with in the not visible scan-line data of being encoding to of closed caption, and the user can't order the presentation mode of closed caption certainly.In comparison, since the present invention utilizes the information display function of playing device end to present closed caption, the user just can change the presentation mode of information display function, from the display mode of ordering closed caption.For instance, implementing when of the present invention, having the information display mode of big font and little font in can be in information display module 52, selecting the information display mode of little font as the user, being taken as is the closed caption that information shows, will present with less font and give the user.Moreover no matter be the broadcast of audio-visual multimedia data and whether presenting of closed caption, the user all can control uniformly at the playing device end, reduces operational inconvenience.In the equivalence, when information display module 52 of the present invention operates, just can regard as the controlling signal filtering in the closed caption signal 46, separately the captions signal that records word content in the closed caption signal 46 being analyzed out, and then allow the user have from the enough and to spare of ordering the closed caption presentation mode.Certainly, when enforcement is of the present invention, also can be in information display module 52 built-in default closed caption presentation mode, and this closed caption presentation mode can be set with reference to the general presentation mode of existing closed caption, so that closed caption is presented with the mode that the user is familiar with.In additional embodiments of the present invention, information display module 52 also can receive the controlling signal among the closed caption signal 45B, allows closed caption show in the mode of working out in the controlling signal.
Compared to known technology, the framework that closed caption Play System of the present invention can be at lower cost, more simplified, had more customized potentiality, more convenient operation is implemented, and allows the function of closed caption be used preferable technology to realize.In the present invention, the function of analysis module 50 can realize by software or hardware, and playing device 32 also can be multimedia computer or the like device except being the general playing device.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (5)
1. a framework is in the Play System of the demonstration captions of a playing device, and it includes:
One access module is used to provide a medium signal, records a video signal and a closed caption signal in this medium signal, and wherein this video signal is rendered as the program picture of a correspondence on a display;
One analysis module, it can produce a literal signal according to this closed caption signal;
One control module is used for controlling the running of this playing device, and produces corresponding state signal according to the situation of this playing device running;
One information display module, this information display module receive this literal signal of producing by this analysis module and this state signal of producing by this control module as the input data, producing the information video signal of a correspondence, and this information video signal is rendered as the information frame of a correspondence on this display;
One coding module, being used for this video signal and this information video signal hybrid coding is a display signal, makes this display signal at the picture that presents on this display after this program picture and this information frame overlap.
2. Play System as claimed in claim 1, wherein this display signal includes at least one visual scan-line data of pen and the not visible scan-data of at least one pen, this visual scan-data can be rendered as the visual picture of user on this display, this not visible scan-data can not be rendered as the visual picture of user on this display; And this coding module with this video signal and this information signal hybrid coding in visual scan-data, make that this display signal can be at the picture that presents on this display after this program picture and this information frame overlap.
3. Play System as claimed in claim 2, wherein this closed caption signal includes a controlling signal and a captions signal; This controlling signal is used for controlling this captions signal and is encoded in mode in the not visible scan-data, and this analysis module system analyzes out the captions signal in this closed caption signal to produce the corresponding character signal.
4. Play System as claimed in claim 1 builds and place a disk broadcasting device, and this access module provides this medium signal according to the data that write down on the disc.
5. Play System as claimed in claim 1 wherein changes from the display mode of the literal signal of this analysis module input by the presentation mode that changes this information display module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100420625A CN100421458C (en) | 2004-04-29 | 2004-04-29 | Display caption playing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100420625A CN100421458C (en) | 2004-04-29 | 2004-04-29 | Display caption playing system |
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| Publication Number | Publication Date |
|---|---|
| CN1691757A CN1691757A (en) | 2005-11-02 |
| CN100421458C true CN100421458C (en) | 2008-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100420625A Expired - Fee Related CN100421458C (en) | 2004-04-29 | 2004-04-29 | Display caption playing system |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102595082A (en) * | 2012-01-30 | 2012-07-18 | 深圳创维－Rgb电子有限公司 | Method and system for automatically displaying multi-format hidden captions of television set |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1176557A (en) * | 1996-09-06 | 1998-03-18 | 三星电子株式会社 | Caption signal broadcasting method for audience selecting caption broad cast |
| CN1423273A (en) * | 2001-11-29 | 2003-06-11 | 三星电子株式会社 | Optical recording medium and apparatus and method for playing said medium |
| KR20030080596A (en) * | 2002-04-09 | 2003-10-17 | 최재익 | Caption handling system and method of Digital Versatile Disk player |
-
2004
- 2004-04-29 CN CNB2004100420625A patent/CN100421458C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1176557A (en) * | 1996-09-06 | 1998-03-18 | 三星电子株式会社 | Caption signal broadcasting method for audience selecting caption broad cast |
| CN1423273A (en) * | 2001-11-29 | 2003-06-11 | 三星电子株式会社 | Optical recording medium and apparatus and method for playing said medium |
| KR20030080596A (en) * | 2002-04-09 | 2003-10-17 | 최재익 | Caption handling system and method of Digital Versatile Disk player |
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| CN1691757A (en) | 2005-11-02 |
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