CN103517009B - Player method and device - Google Patents
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- CN103517009B CN103517009B CN201210197940.5A CN201210197940A CN103517009B CN 103517009 B CN103517009 B CN 103517009B CN 201210197940 A CN201210197940 A CN 201210197940A CN 103517009 B CN103517009 B CN 103517009B
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Abstract
The present invention is a video-audio playing device and the player method being applied thereon.Player method comprises the steps of：Receive one first played data and one second played data；One first Word message that this first played data is comprised is converted to one first acoustical signal；And play this first acoustical signal, and the second sound signal corresponding to this second played data simultaneously, wherein, this first acoustical signal, this second sound signal system correspond respectively to one first broadcasting language, one second broadcasting language.
Description
Technical field
The invention relates to a kind of player method and device, and particularly a kind of can play multiple language of playing simultaneously
Player method and device.
Background technology
Refer to Fig. 1, the schematic diagram of its depicted TV programme presentation mode for known technology.To broadcast television news program
As a example, in addition to the news illustrated by just in the main broadcaster of reciting news, in the title above picture, can in addition provide temperature,
Rainfall probability and the additional informations such as time；And provide typhoon dynamic in the left side of picture using horse race lamp.
During using this kind of mode, spectators must sit up straight before TV, can learn the information that TV image is provided.This
Outward, for there are the spectators of different hobbies, only grasp remote control control power spectators may decide that to be watched interior
Hold.
As an example it is assumed that watching certain social news for the user A viewing and admiring key frame.User A
While being concerned about this social news, might not be it will be noted that Weather information above TV image title, and to have a ride on a horse
The typhoon that lamp mode presents is dynamic.
On the other hand, for user B, may be concerned about whether typhoon affects working and attend class state, but because not grasping
Remote control ownership, and converted channel cannot report meteorological television station to special.Therefore, user B is only capable of by horse race lamp
Dynamic to learn typhoon.
Furthermore, during using horse race lamp mode show message, the message of the display that is possibly used for rotating has ten, and user B
May be too fast because of the speed of horse race lamp movement, and fail timely, completely watch oneself message of concern.This also allows use
Person B efficient cannot know oneself information of concern.
In other words, existing TV image provide information when it is impossible to the user with different demands that allows of elasticity takes
Obtain oneself information of concern.It is thus known that the practice of technology still has much room for improvement.
Content of the invention
An aspect of of the present present invention is a kind of player method, is applied to a video-audio playing device, this player method comprises following
Step：Receive one first played data and one second played data；The one first word letter that this first played data is comprised
Breath is converted to one first acoustical signal；And play this first acoustical signal, and corresponding to this second played data simultaneously
One second sound signal, wherein, this first acoustical signal, this second sound signal correspond respectively to one first broadcasting language, one
Second broadcasting language.
Another aspect of the invention is a kind of video-audio playing device, signal is linked at least one signal source, this playing device
Comprise：One receiving unit, signal is linked to this at least one signal source, and receives one first played data and one second broadcasting number
According to；One control unit, is electrically connected to this receiving unit, and one first Word message that this first played data is comprised is converted to
One first acoustical signal；And a broadcast unit, it is electrically connected to this control unit, it plays this first acoustical signal simultaneously, with
And the second sound signal corresponding to this second played data, wherein, this first acoustical signal, this second sound signal are respectively
Play language, one second broadcasting language corresponding to one first.
More preferably understand to have to the above-mentioned and other aspect of the present invention, preferred embodiment cited below particularly, and coordinate attached
Figure, is described in detail below：
Brief description
Fig. 1, it depicts the schematic diagram of the TV programme presentation mode of prior art.
Fig. 2A, it is the first preferred embodiment according to present invention conception, receives respectively with striograph from common signal source
Case form, the display picture schematic diagram of the played data of video-audio form.
Fig. 2 B, it is to be conceived according to the present invention, and the flow process carrying out word acquisition to the image pattern in TV image is shown
It is intended to.
Fig. 3, it is the second preferred embodiment according to present invention conception, receives respectively with Chinese character from different signal sources
Number form, the schematic diagram of the played data of video-audio data form.
Fig. 4, it is the 3rd preferred embodiment according to present invention conception, receives two groups respectively from different signal sources and all adopts
Schematic diagram with the played data of letter symbol data form.
Fig. 5 A, it is the function block schematic diagram of the video-audio playing device according to present invention conception.
Fig. 5 B, it is that the present invention is directed to video-audio playing device, and proposes the player method that multiple types can be provided to play language
Flow chart.
Main element symbol description
Video-audio playing device 50 receiving unit 51
Storage element 54 control unit 52
Acquisition module 521 recognizes module 523
Translation module 525 voice conversion module 527
Broadcast unit 53
Specific embodiment
Hereinafter enumerate three preferred embodiments first, illustrate how the present invention assumes polynary information using TV and give not
Same user.In simple terms, the conception of the present invention is to provide the information content of its preference for different users, and
Played out with the language that it is usual.
According to the conception of the present invention, for wanting to listen the user of amoyese, video-audio playing device is just played out with amoyese；Right
In wanting to listen the user of Japanese, video-audio playing device is just played out with Japanese；For wanting to listen the user of English, audio-visual broadcasting
Device is just played out with English.
Additionally, the present invention is further, on video-audio playing device, different played data is provided with different languages
Speech, the function of simultaneously being play.For example：While user A viewing TV play Guangdong language serial, user B can
To listen to the CNN Internet news of English broadcasting, user C can listen to the stock read aloud suggested by horse race lamp on picture with Chinese
Tendency.In further applying, respectively this user can be watched for oneself, the broadcast information listened to carries out volume, broadcasts
Put the adjustment such as speed.
Refer to Fig. 2A, its be according to the present invention conception the first preferred embodiment, from common signal source receive respectively with
The display picture schematic diagram that image pattern form, the played data of video-audio form play out.In this preferred embodiment,
TV（Video-audio playing device）Have received the news scene from television station and the message such as horse race lamp, title.
In this preferred embodiment, TV image is divided into the played data of two parts.Wherein first played data
Comprise temperature above picture, temporal information, and the typhoon shown by horse race lamp is dynamic.On the other hand, the second played data
Then represent image frame and the sound of main broadcaster's reciting news.
According to the conception of the present invention, in addition to maintaining the image frame playing main broadcaster's reciting news and sound, also simultaneously with
Different language plays the sentence shown by title, horse race lamp.For example, if user A is reported with national language in viewing main broadcaster
While social newss, user B just can listen to the temperature reported with the other kinds of language such as amoyese, English, Japanese,
The information such as time, typhoon be dynamic.
According to the conception of the present invention, video-audio playing device also can provide the function of translation, example further to played data
As：The information such as dynamic to aforesaid temperature, time, typhoon is translated as after English, then play through being translated as English temperature, when
Between, typhoon dynamic.Certainly, interpreter language herein can set according to the preference of user.
It is summarized in the part such as title, horse race lamp of the TV image shown in Fig. 2A it is found that these partly belong to comprises
The image pattern data form of letter symbol.Therefore, in this preferred embodiment, image pattern data form is embedded in for this
In word content, there is provided the function of text-recognition.That is, utilizing text-recognition（Optical identification）Function, read
Word string included in title, horse race lamp.
Refer to Fig. 2 B, it is to conceive according to the present invention, and carries out word acquisition to the image pattern in TV image
Schematic flow sheet.
First, the content of pick-up image pattern（Step S201）；Then determine whether that word is embedded in image pattern
（Step S202）.If the judged result of step S202 is, have word to be embedded in image pattern, just carry out follow-up identification with
, if it is not, represent and there is not Word message and terminate its flow process in the step of speech play.
Secondly, optical identification is carried out for the image pattern being embedded with word（Step S203）.Once picking out word letter
After the content of breath, the broadcasting language whether to be listened to by user further according to the language representated by its Word message, and then determine
Determine whether will be translated（Step S204）.For example, if the result that draws of identification is Chinese, and user wishes to listen to
When broadcasting language is English, just need to be translated.
When step S204 is affirmative, just translated（Step S205）.After translation, followed by carrying out word-language
The conversion of sound（Step S206）, that is, play through being translated as English temperature, time, Typhoon Information with English.
Fig. 3, it is the second preferred embodiment according to present invention conception, receives respectively with Chinese character from different signal sources
The schematic diagram that number form, the played data of video-audio data form play out.According to this preferred embodiment, audio-visual broadcast
Putting device is provided it is also possible to receive simultaneously by website in addition to receiving the video-audio picture that general television channel is provided
Web page contents.
Consequently, it is possible to video-audio playing device 50 play TV image while it is also possible to using voice read mode,
Read the word in web page contents.Conception according to the present invention is it is assumed that the original sound data of the image frame of TV uses day
When literary composition is play, then reading the language that in webpage, literary composition is used just is other kinds of language, for example：The south of Fujian Province language, English, French
Deng.
When user A watches the TV image that Japanese is play, user B is because listened in webpage using other language
Hold, can't be affected by the TV image play with Japanese.
Furthermore, video-audio playing device 50 obtains the time point of literary composition in webpage, does not need to be defined, i.e. audio-visual broadcasting fills
Putting 50 no doubt can be while playing TV image, and instant connection obtains web page contents to website.Additionally, audio-visual broadcasting
Device 50 can also obtain web page contents in advance, for example：After in advance web page contents are stored in the storage element of inside, then at broadcasting
While placing TV picture, read web page contents.
Fig. 4, it is the 3rd preferred embodiment according to present invention conception, receives two groups respectively from different signal sources and all adopts
Schematic diagram with the played data of letter symbol data form.This preferred embodiment further illustrates what played data was adopted
Data form can be similarly text formatting, for example：Japanese webpage acquired by from NHK site radio, obtain from CNN website
English webpage.
After video-audio playing device 50 obtains Japanese webpage with English webpage, then read with Japanese, English simultaneously（Using loudspeaker
Broadcasting）The content of this two webpages.For the user A that NHK web page news are listened in hope, just can be broadcast using audio-visual
Put device 50 and listen to Japanese news；For the user B that CNN web page news are listened in hope, just can utilize audio-visual broadcasting
Device 50 listens to English news.
Refer to Fig. 5 A, it is the function block schematic diagram of the video-audio playing device according to present invention conception.Playing device
Comprise：Signal is linked to telecommunication operator, network service dealer is provided the receiving unit 51 of signal source and receiving unit 51 electricity
The control unit 52 connecting, and the broadcast unit 53 electrically connecting with control unit 52.
Receiving unit 51 is used for receiving the first played data and the second played data.And control unit 52 is to broadcast according to first
Put the form of data, and the first played data is converted to the first acoustical signal by the first Word message by selectivity；And root
According to the form of the second played data, and the second played data is converted to rising tone message by the second Word message by selectivity
Number.
Thereafter, broadcast unit 53 plays the first acoustical signal simultaneously, and second sound signal.Wherein, the first sound letter
Number, second sound signal correspond respectively to the first broadcasting language, second broadcasting language.
Wherein control unit 52 mainly comprises：Acquisition module 521, identification module 523, and voice conversion module 527.Again
Person, control unit 52 also can further comprise：Translation module 525.
These modules are directed to the first broadcast information, the process of the second broadcast information is similar, that is, believe for playing
Cease adopted data form and carry out processing, change, and then required voice signal during broadcast unit 53 actual play is provided.
Acquisition module 521 is electrically connected to receiving unit 51, when the form of played data belongs to pattern image data form,
Acquisition module 521 can obtain corresponding multiple text-type features from broadcast information.Identification module 523 is electrically connected to acquisition mould
Block 521, it is to carry out image identification and coding to these text-type features, draws corresponding Word message according to this.
The purpose of acquisition module 521 and identification module 523 is provided, is to provide for text-recognition（Optical
Character Recognition, referred to as OCR）Function.That is, when broadcast information is for image pattern form, will wherein
Word capture out, become letter symbol data form.
Certainly, letter symbol data form using not needing to be defined, therefore, such as：ASCII character, adopt general words
Symbol collection（Universal Character Set）UniCode archives etc..
Through text-recognition function, even if broadcast information is the image pattern of the form such as JPG, GIF, TIFF or PNG, BMP,
Control unit 52 still can be recognized, and captures the word in picture.Or when broadcast information be MPEG2, MPEG4,
When H.264 waiting video-audio form, image frame therein is captured, after drawing image pattern, recognize shadow further
As the word included in pattern.
Voice conversion module 527 is electrically connected to acquisition module 521 and this broadcast unit 53, and it is to recognized and draw
Word message, changed using the broadcast information of letter symbol data form and drawn acoustical signal.
Translation module 525 is electrically connected to identification module 523 and voice conversion module 527.Translation module 525 is by Word message
After being translated, provide translated after Word message give voice conversion module 527, so that voice conversion module 527 is obtained accordingly
Go out the acoustical signal that broadcast unit 53 is play.There is provided translation module 525 that user can be allowed to listen to a greater variety of broadcasting to believe
Breath.For example, when the word in the first broadcast information is English, in just being converted into through translation module 525
Literary composition, now, user just can be listened to for example：The world news that the foreign news media such as CNN, BBC are provided.
Additionally, video-audio playing device 50 can provide storage element 54 with selectivity, it is electrically connected to receiving unit.Cause
This, in advance the broadcast information that hope is listened to can be stored in storage element 54, be used as follow-up play.Certainly, store up
Memory cell 54 no doubt can be built into video-audio playing device but it is also possible to be external memory card, USB Portable disk etc..
Realize the mode of these modules, unit, can according to system effectiveness, application demand and select with software, hardware,
Or the mode of part software part hardware is realizing.
According to aforesaid several preferred embodiments, the conception of the present invention is converged be made into flow chart below.
Refer to Fig. 5 B, it is that the present invention is directed to video-audio playing device, and proposes to provide multiple broadcastings playing language
The flow chart of method.Player method comprises the steps of：Receive the first played data and the second played data（Step S51）；Root
According to the form of the first played data, and the first played data is converted to the first sound letter by selectivity by the first Word message
Number（Step S53）；And play the first acoustical signal, and the second sound signal corresponding to the second played data simultaneously（Step
Rapid S55）.Wherein first acoustical signal and second sound signal correspond respectively to the first broadcasting language, the second broadcasting language.
According to the conception of the present invention, the form of the first played data is pattern image data form, or Chinese character count
According to form, the second played data is then video-audio form.The practice of step S53 will be illustrated further below.
That is, the data due to being presented with pattern image data form cannot be converted directly into acoustical signal, therefore, when
The form of one played data for during pattern image data form it is necessary to first according to obtaining to acquisition, the identification of the first played data
To after the first Word message, then the first Word message is converted to the first acoustical signal.That is, when the first played data
When form belongs to pattern image data form, step S53 can further include following steps：Image is carried out to the first played data
Identification and coding, draw the first Word message according to this；And the first Word message is converted to the first acoustical signal.
Because the selected first broadcasting language of user and the Chinese language species that adopted of the first Word message might not
Identical.For example：User wishes that the first broadcasting language listened to is English, but the first Word message is Spanish.Therefore,
Remain a need for Spanish is translated as after English, recycle loudspeaker to play the Word message of English edition.
In this case, the result directly text-recognition being drawn（First Word message）Cannot directly be broadcast
Put, and must optionally the first Word message be translated.Now, the first Word message is converted to the first acoustical signal
Step comprise the steps of：First Word message is translated；And after soundplay translation the is play using first
One Word message, and then draw the first acoustical signal.
On the other hand, when the form of the first played data is letter symbol data form, step S53 need not carry out image
The steps such as identification, and directly the first played data can be converted to the first acoustical signal.Likewise, because user is selected
First plays language might not be identical with the Chinese language species that the first played data is adopted.For example：User wishes to hear
First plays language for Chinese, but the first played data is but downloaded by Japanese web and obtained.Now just need first to first
After played data is translated, can using first play soundplay translated after the first played data, and then draw the
One acoustical signal.
Certainly, if the data form of the second played data not video-audio data form when, equally can be using similar
The method of step S53, according to the form of the second played data, and selectivity by the second played data by the second Word message
Be converted to this second sound signal.
It is noted that the needs based on application, in foregoing schemes, may further provide and allow user freely set the
One plays language, the species of the second broadcasting language.Although additionally, aforesaid preferred embodiment is only using two kinds of played data as act
Example, but in actual applications, the quantity of the played data that video-audio playing device 50 is play simultaneously is not limited thereto.
As long as that is, being provided that different types of broadcasting language, coming corresponding to played data, then the kind of played data
Class is all adjustable with quantity.For example, with English（First broadcasting language）Come to play the first played data, with（Second broadcasting
Language）Japanese playing the second played data, and with Chinese（3rd broadcasting language）To play the 3rd played data.
According to the conception of the present invention, above-mentioned audio-visual player method can be applied to the video-audio playing device 50 of all kinds
On.Video-audio playing device 50 herein can pass through various wired, wireless biographies for the devices such as box on DVB-T, machine, these devices
Defeated mode, signal is linked to provides dealer, network service dealer etc. to provide at least one signal source that end is provided by TV signal.
Need to be noted that, at least one signal source herein represents the source of the first played data and the second played data not
Needs are defined.For example, when signal source is for providing the common signal source of the first played data and the second played data simultaneously
When, signal source is probably television station, and the first played data and the second played data are respectively main broadcaster just in the picture of reciting news
Information in face and horse race lamp.
On the other hand, when signal source be respectively provide the first signal source of the first played data and the second played data, the
During binary signal source, video-audio playing device 50 may play the report article being provided by news website simultaneously, and from institute of television station
The photograph album receiving.
According to the conception of the present invention, the form of the first played data and the second played data can identical it is also possible to different.
It is noted that when the main display picture that the second played data is provided by television station, due to the second played data itself i.e.
Comprise image and sound, therefore video-audio playing device does not need extra conversion can draw second sound signal, therefore can be straight
Connect and play the original sound data that the second played data is comprised.
Furthermore, the acquisition mode of played data also without limiting, for example：While user is watched, listened to, audio-visual
The just instant reception played data of playing device；Or video-audio playing device obtains the content of played data in advance and is stored
Afterwards, just play the played data content that these have stored.
The former is properly termed as instant play mode (real time mode)；The latter then can be used as batch-mode (batch
mode).Certainly, it is also possible to obtain the first played data using batch-mode in practical application, and obtain the with instant pattern
Two played data.
According to aforesaid preferred embodiment it can be seen that adopting the playing device of present invention conception, such as：Box on TV, machine,
Computer, personal digital assistant, mobile phone etc., can be play with different broadcasting language according to the use habit of different users
Acoustical signal.Because different played data all can be play individually, therefore, the broadcasting speed of these acoustical signals, corresponding
Play language etc., all can set, adjust according to the preference of each user.
This kind of practice can allow multiple user listen to each information of concern simultaneously, and plays the source also phase of content
When polynary, therefore, using player method proposed by the invention with device it is provided that quite facilitating the use with elasticity.
In sum although the present invention is disclosed as above with preferred embodiment, so it is not limited to the present invention.This
Bright those of ordinary skill in the art, without departing from the spirit and scope of the present invention, when can make various changes
With retouching.Therefore, protection scope of the present invention is worked as to be defined by tbe claims and is defined.
Claims (17)
1. a kind of TV signal player method, is applied to a video-audio playing device, and this player method comprises the steps of：
Receive a TV signal, this TV signal comprises one first played data and one second played data, this first broadcasting number
According to including the first Word message, this second played data includes an image frame and a second sound signal；
This first Word message that this first played data is comprised is converted to one first acoustical signal；And
Show this image frame in this second played data, play this first acoustical signal simultaneously and second broadcast corresponding to this
Put this second sound signal of data,
Wherein, this first acoustical signal and this second sound signal correspond respectively to one first broadcasting language and one second broadcasting language
Speech.
2. TV signal player method as claimed in claim 1 is it is characterised in that the form of this first played data is one the
One pattern image data form or one first letter symbol data form.
3. TV signal player method as claimed in claim 2 is it is characterised in that the form working as this first played data is should
During the first pattern image data form, this first Word message that this first played data is comprised is converted to this first sound
The step of signal comprises the steps of：
Text-recognition is carried out to this first played data, and draws this first Word message according to this；And
This first Word message is converted to this first acoustical signal.
4. TV signal player method as claimed in claim 3 it is characterised in that by this first Word message be converted to this
The step of one acoustical signal comprises the steps of：
This first Word message is translated；And
Using this first broadcasting soundplay this first Word message after translated, and then draw this first acoustical signal.
5. TV signal player method as claimed in claim 2 is it is characterised in that the form working as this first played data is should
During the first letter symbol data form, this first Word message that this first played data is comprised is converted to this first sound
The step of signal is directly this first Word message in this first played data to be converted to this first acoustical signal.
6. TV signal player method as claimed in claim 5 it is characterised in that by this first played data be converted to this
The step of one acoustical signal comprises the steps of：
This first Word message is translated；And
Using this first broadcasting soundplay this first played data after translated, and then draw this first acoustical signal.
7. TV signal player method as claimed in claim 1 is it is characterised in that also comprise the steps of：
One second Word message that this second played data is comprised is converted to this second sound signal.
8. TV signal player method as claimed in claim 1 is it is characterised in that also comprise the steps of：Set this first
Play the species of language.
9. a kind of TV signal video-audio playing device, signal is linked at least one signal source, and this playing device comprises：
One receiving unit, signal is linked to this at least one signal source, and receives a TV signal, and this TV signal comprises one first
Played data and one second played data, this first played data includes the first Word message, and this second played data includes one
Image frame and a second sound signal；
One control unit, is electrically connected to this receiving unit, and this first Word message that this first played data is comprised is turned by it
It is changed to one first acoustical signal；And
One broadcast unit, is electrically connected to this control unit, this image frame in display the second played data, play simultaneously this
One acoustical signal and this second sound signal corresponding to this second played data,
Wherein, this first acoustical signal and this second sound signal correspond respectively to one first broadcasting language and one second broadcasting language
Speech.
10. TV signal video-audio playing device as claimed in claim 9 is it is characterised in that the form of this first played data
Can be one first pattern image data form or one first letter symbol data form.
11. TV signal video-audio playing devices as claimed in claim 10 are it is characterised in that this control unit comprises：
One acquisition module, is electrically connected to this receiving unit, when the form of this first played data is this first pattern image data
During form, this acquisition module obtains multiple text-type features from this first played data；And
One identification module, is electrically connected to this acquisition module, it recognizes to the plurality of text-type feature, and draws this according to this
First Word message；And
One voice conversion module, is electrically connected to this acquisition module and this broadcast unit, it is changed to this first Word message
And draw this first acoustical signal.
12. TV signal video-audio playing devices as claimed in claim 11 are it is characterised in that this control unit also comprises：
One translation module, is electrically connected to this identification module and this voice conversion module, this first Word message is translated by it
Afterwards, provide translated after this first Word message give this voice conversion module, make this voice conversion module draw this accordingly
First acoustical signal.
13. TV signal video-audio playing devices as claimed in claim 10 are it is characterised in that this control unit comprises：
One voice conversion module, is electrically connected to this receiving unit and this broadcast unit, and it is by this in this first played data the
One Word message is converted to this first acoustical signal.
14. TV signal video-audio playing devices as claimed in claim 13 are it is characterised in that this control unit also comprises：
One translation module, is electrically connected to this receiving unit and this voice conversion module, it is directly by this first played data
After this first Word message is translated, provide translated after this first Word message give this voice conversion module, make this language
Sound modular converter draws this first acoustical signal accordingly.
15. TV signal video-audio playing devices as claimed in claim 9 are it is characterised in that this second is broadcast by this control unit
Put one second Word message that data comprised and be converted to this second sound signal.
16. TV signal video-audio playing devices as claimed in claim 15 are it is characterised in that the form of this second played data
Can be a video-audio data form, one second pattern image data form or one second letter symbol data form.
17. TV signal video-audio playing devices as claimed in claim 16 are it is characterised in that work as the lattice of this second played data
When formula is this video-audio data form, this second sound signal refers to the original sound number that this second played data is comprised
According to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210197940.5A CN103517009B (en) | 2012-06-15 | 2012-06-15 | Player method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210197940.5A CN103517009B (en) | 2012-06-15 | 2012-06-15 | Player method and device |
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| Publication Number | Publication Date |
|---|---|
| CN103517009A CN103517009A (en) | 2014-01-15 |
| CN103517009B true CN103517009B (en) | 2017-03-01 |
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| CN201210197940.5A Expired - Fee Related CN103517009B (en) | 2012-06-15 | 2012-06-15 | Player method and device |
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3199711B2 (en) * | 1999-04-02 | 2001-08-20 | 松下電器産業株式会社 | Optical disc, recording device and reproducing device therefor |
| US20070261084A1 (en) * | 2006-05-08 | 2007-11-08 | Smith Emmitt J Iii | Interactive event display system for tracking items during events |
| US20030200858A1 (en) * | 2002-04-29 | 2003-10-30 | Jianlei Xie | Mixing MP3 audio and T T P for enhanced E-book application |
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