CN1295626C - Method for controlling command in playing procedure of video player - Google Patents
Method for controlling command in playing procedure of video player Download PDFInfo
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- CN1295626C CN1295626C CNB2004100165388A CN200410016538A CN1295626C CN 1295626 C CN1295626 C CN 1295626C CN B2004100165388 A CNB2004100165388 A CN B2004100165388A CN 200410016538 A CN200410016538 A CN 200410016538A CN 1295626 C CN1295626 C CN 1295626C
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Abstract
The present invention relates to a method for controlling commands in the playing procedure of video players, which belongs to the technical field of video playback. The present invention uses an independent command control file for saving all necessary commands; the command file is composed of a plurality of sth command sets, wherein each command set is composed of a plurality of commands; the command control file is used for saving information files which are requested by disks and are used for controlling the playing sequences or the playing effects of the disks. The method comprises the control over the playing connection of each audio source and each video source, the control over the arrangement of audio frequency and captions, and the control over the display effects of the captions and highlight areas; the system executes the control by a series of command lists. The operating function that users participate in interaction becomes one of indispensable functions for playing audio and video disks; moreover, the present invention makes the playback of a player simple.
Description
Technical field
The present invention relates to is a kind of method that is used for the control of audio frequency disk play command, particularly a kind of method that is used for video machines playing process order control.Belong to the video playback technical field.
Background technology
Need play wherein each broadcast source according to certain playing sequence in the playing process of audio frequency and video source tray sheet.Navigational system must be able to be supported the playing sequence of disc default setting and the playing sequence that the user is provided with.Audio frequency disk can be controlled navigational system by a series of order, reaches desired playing sequence, and the while user interaction participates in pairing order and also must be carried out by navigational system.Find by retrieval, DVD Specifications for Read-Only Disc Part3 VideoSpecifications Version 1.12 July 2000 (DVD read-only optical disc specifications third part video specification, version 1.12, finalize a text in July, 2000) in to the description of DVD optic disk navigational system, wherein relevant with control command part has been introduced: (1) has 37 kinds by the redirect of command interpretation realization; (2) by navigation command and navigational parameter, can define a title that has the complex branches structure, in other words, can create one for film or OK a karaoke club ok song and can realize the mutual title that has complex branches structure and menu structure; (3) navigation command need be used 4 different command area; (4) command set of composition navigation command is divided into into 6 groups, the different order above 200 kinds altogether.Therefrom DVD-Video (DVD optic disk) navigational system has the powerful command interpretation operating mechanism of a cover as can be seen, can support to calculate, the condition redirect, timer operation and some other functions, it has almost covered all essential occasions, but its order kind is extremely various, and employed order is dispersed in several place (PGC of DVD-Video (DVD optic disk) navigational system, CELL, Button), not only taken nervous storage resources, and its complicacy also causes the very difficult entirely true explanation of player to carry out all orders, finally influenced the difficulty that DVD optic disk and player are made, and the stability of DVD optic disk broadcast.
Therefore need a kind of simple have low system overhead but need to support the command control system of the navigation feature used always simultaneously again, realize the demand that some disc is play.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, a kind of method that is used for video machines playing process order control is provided.Make its become a kind of simple have low system overhead but need to support the command control system of the navigation feature used always simultaneously again.
The present invention is achieved by the following technical solutions.The present invention utilizes an order of independently ordering control documents to come all uses in the storage disks playing process, this order control documents is made up of the command set of some random lengths, each command set is made up of some orders, the desired file that is used for controlling the information of disc playing sequence and result of broadcast of storage disks in the order control documents, comprising the control that the broadcast connection between the audio frequency and video source is arranged, audio frequency and captions control is set, the control of captions and highlight bar display effect, system carries out these control by a series of command set.
The present invention stores all must ordering independently to order control documents, make the simple in structure of order understand, be easy to the realization of disc manufacturing process and player order control, each command set was carried out by storage order in the time of formulating, each order can have different parameter lengths and parameter value according to type, and the present invention has defined the order label of reserving, and command set can be expanded, and is convenient to the upgrading of version in the future.
Described order comprises: playing process control; The control that the broadcast state of each audio/video flow and broadcast each other connect; The setting of play parameter; The setting of some parameters of using in the player playing process is such as the selection of audio frequency and subtitle language; The setting of captions parameter; The used palette of captions and with the setting of the mixability of video layer; The control of captions highlight bar; The highlight bar control command comprises that the setting of highlight regions, highlighted palette reach and the setting of video layer degree of mixing; The setting of relative handover information and the setting of push button function between the button; The mode of utility command control is provided with the parameter of captions, can make that the display effect of captions is more diversified and be convenient to player to realize.
Because the user participates in interactive operating function become audio frequency disk and play one of indispensable function, so the demonstration of button and operation also become the indispensable function of navigational system.This command control system adopts the highlighted mode of captions and forms the button that the user participates in interactive selection cooperating of video image.All highlighted controls all are integrated in the making that has made things convenient for the disc manufacturing system in the order control documents.
With respect to the order control technology in the DVD navigational system of complexity, the present invention has substantive distinguishing features and marked improvement.The employed order control information that is embedded in mutually in each navigation bag of DVD is of a great variety, is dispersed in the diverse location of disc, has increased system overhead during processing.Only need disposable reading and recording to order the file of control information totally by the present invention, can realize the interaction function that it can be realized fully, so in use need not repeat repeatedly to read the order control information that is dispersed in the disc diverse location, make the broadcast design of player need not consider complicated parameter calculation simultaneously, assignment, judge and redirect, realize becoming more simple.
Description of drawings
Fig. 1 is the use process flow diagram of order control documents in broadcast of the present invention's definition.
Fig. 2 is the structural drawing of the order control documents of the present invention's definition.
Embodiment
Before describing according to best case study on implementation of the present invention, offer and be given in the agreement that to use when describing best case study on implementation, abb. and fundamental type explanation, these information are to constitute the ABC of best case study on implementation or the explanation of describing method, help the best case study on implementation of reasonable understanding.
Agreement and abb.
The bit ordering
The diagram of all multidigit bit numbers is expressed as highest significant position (msb) on the left side, and least significant bit (LSB) (lsb) on the right.Most significant bits is the bit with the highest-order bit number.
As following table 1, bit i represents that the bit position is the bit of i.
The ordering explanation of table 1:8 byte
Msb lsb
| b7 | b6 | b5 | b4 | b3 | b2 | b1 | b0 |
The byte ordering
Need to surpass 8 data that bit is represented, in optic disk, occupy more than one byte.For all these data, the byte align order on optic disk is: most significant byte (MSB) up front, and least significant byte (LSB) is in the end.
The diagram of multibyte data is expressed as: the left side or higher byte are most significant bytes, and the right or lower byte are minimum effective space joints.
Table 2: the ordering explanation of two bytes
| MSB | LSB | ||||
| b15 | … | b8 | b7 | … | b0 |
| Byte B1 | Byte B2 | ||||
Fundamental type
The signed integer of INTn n position (n can be 8,16,32,64).
The signless integer of UINTn n position (n can be 8,16,32,64).
Bytes does not have a plurality of bytes of precise meaning, and filling content is from low byte, and unfilled content must all be changed to 0.
The LSN logic sector number, the logic sector number of logic sector is 0 in fact, the logic sector number of each logic sector is that the logic sector number of previous logic sector adds 1 later on.
The relative byte location of RBP
The relative logic sector number of RLSN
STRING is with the character string of ASCII coding
ZERO represents that all bits of corresponding byte are zero
The definition and the command type explanation of order control documents
All orders are all deposited in one and are independently ordered in the control documents, and the structure of this order control documents as shown in Figure 2.
The form of order control documents is (table 3):
Table 3: the format description of order control documents
| Relativity shift RBP | The data segment title | Explanation | Byte number | Data type |
| 0-7 | CTR_VER | Control documents version number | 8 | STRING |
| 8-11 | CMD_TABLE_NUM | The command set sum | 4 | UNIT32 |
| CMD_TABLE_1 | Command set 1 | |||
| CMD_TABLE_2 | Command set 2 | |||
| 。。 | ||||
| CMD_TABLE_n | Command set n |
CTR_VER control documents version number
Control information fileversion number, type are ascii string, use when playing for player.
Show version 1.00 such as " NAVPO100 ".
CMD_TABLE_NUM command set sum
The sum of the command set that is comprised in the order control documents, type is an integer.
CMD_TABLE_n command set n (n=1,2 ...)
The command set format description command set form following (table 4) that the data of command set n, structure are seen below:
Table 4: command set format description
| Relativity shift RBP | The data segment title | Explanation | Byte number | Data type |
| 0-3 | CMD_TIME | The command set execution time | 4 | UNIT32 |
| 4-7 | TAB_LENGTH | The command set data length | 4 | UNIT32 |
| 8- | COMMOND_1 | Order 1 | ||
| COMMOND_2 | Order 2 | |||
| 。。 | ||||
| COMMOND_n | Order n |
The CMD_TIME command set execution time
For this reason the execution time of command set, type is an integer.The unit of execution time can be 0.1 second, 1 second ... or other values, be unit for example with the Fixed Time Interval of determining in the index file
TAB_LENGTH command set data length
The total bytes of each order length in this command set, type is an integer
COMMOND_n order n (n=1,2 ...)
This is a n bar order data, the form following (table 5) of every order of command format explanation that its form is seen below:
Table 5: the format description of single command
| Relativity shift RBP | The data segment title | Explanation | Byte number | Data type |
| 0 | CMD_TYPE | Command type | 1 | UNIT8 |
| CMD_PARA_1 | Command parameter 1 | |||
| CMD_PARA_2 | Command parameter 2 | |||
| 。。 | ||||
| 。。。 | ||||
| CMD_PARA_n | Command parameter n |
The CMD_TYPE command type
Command type refers to the function of this order, and type is an integer.Each order with number of parameters command type decision thus, the command set explanation that the specific instructions type declaration is seen below
CMD_PARA_n command parameter n (n=1,2 ...)
Order with parameter n, its type and whether exist and depend on command type
The command set explanation
Order in the command set can be divided into four classes by its function:
1, playing process control
Control the broadcast state of each audio/video flow and the connection of broadcast each other.
2, the setting of play parameter
Some parameters of using in the player playing process are set, such as the selection of audio frequency and subtitle language.
3, the setting of captions parameter
Be provided with the used palette of captions and with the mixability of video layer.The mode of utility command control is provided with the parameter of captions, can make that the display effect of captions is more diversified and be convenient to player to realize.
4, the control of captions highlight bar
The user participates in interactive operating function have been become audio frequency disk and has play one of indispensable function, so the demonstration of button and operation also become the indispensable function of navigational system.This navigational system adopts the highlighted mode of captions and forms the button that the user participates in interactive selection cooperating of video image.All highlighted controls all are integrated in this order have made things convenient for the making of disc manufacturing system in control documents, and make the broadcast of player realize becoming comparatively simple.The highlight bar control command mainly comprise the setting of highlight regions, highlighted palette and with the setting of video layer degree of mixing, being provided with etc. of the setting of handover information and push button function relatively between the button.
All orders are stored in by the execution time among the different orders, and the demanded storage of identical execution time is carried out by the order of storage among same order.
The concrete form following (table 6) of command set:
Table 6: command set type, title and format description
| Command type | Command name | Explanation | Number of parameters |
| 1 | CMD_PLAY_END | The play stream end mark | 0 |
| 2 | CMD_PLAY_POINT | Play inlet next time | 2 |
| 3 | SET_SUB_ATTR | The captions display parameter are set | 16 |
| 4 | SET_BUTTON_NUM | Number of buttons is set | 1 |
| 5 | SET_HLI_AREA | Highlighted viewing area is set | 5 |
| 6 | SET_BUTTON_ACTION | The button corresponding function is set | 2 |
| 7 | SET_HLI_BUTTON | Selected button is set | 1 |
| 8 | CMD_PLAY_RSM | Beginning is play in memory | 0 |
| 9 | SET_STILL_TIME | The still frame time is set | 1 |
| 10 | SET_HLI_ATTR | The highlight bar display parameter are set | 16 |
| 11 | SET_SEL_ATTR | Highlighted selected areas display parameter are set | 16 |
| 12 | ENABLE_HLI | Allow highlighted demonstration | 0 |
| 13 | DISABLE_HLI | Forbid highlighted demonstration | 0 |
| 14 | CMD_Stop | Stop to play | 0 |
| 15 | SET_AUDIO | Select audio language | 1 |
| 16 | SET_CAPTION | Select subtitle language | 1 |
| 255 | CMD_END | The order ending | 0 |
CMD_PLAY_END play stream end mark
Represent that existing video demonstration comes to an end, the notice navigational system demonstrates all pictures in the buffer zone, and is especially particularly useful when magic lantern is play occasion.This order does not have parameter
CMD_PLAY_POINT plays inlet next time
The execution time that is illustrated in this order then, the inlet of broadcast next time that is connected to.This order has 2 parameters:
1. play inlet compression stream number (type UNIT8)
Table 7: play the explanation of inlet compression stream number
| B7 | B6 | B5 | B4 | B3 | B2 | B1 | B0 |
| Play inlet compression stream number | |||||||
When broadcast inlet compression stream number was 0, what representative was play next time was the menu play stream
2. play inlet compressive flow section number (type UNIT8)
Table 8: play the explanation of inlet compressive flow section number
| B7 | B6 | B5 | B4 | B3 | B2 | B1 | B0 |
| Play inlet compressive flow section number | |||||||
SET_SUB_ATTR is provided with the captions display parameter
This order is used for being provided with the show palette and the degree of mixing parameter of captions.This order has 16 parameters (type UNIT8) following (table 9):
Table 9: captions show palette and degree of mixing parameter declaration
| The Y value of captions color 0 |
| The Cb value of captions color 0 |
| The Cr value of captions color 0 |
| Captions color 0 and video layer degree of mixing value |
| The Y value of captions color 1 |
| The Cb value of captions color 1 |
| The Cr value of captions color 1 |
| Captions color 1 and video layer degree of mixing value |
| The Y value of captions color 2 |
| The Cb value of captions color 2 |
| The Cr value of captions color 2 |
| Captions color 2 and video layer degree of mixing value |
| The Y value of captions color 3 |
| The Cb value of captions color 3 |
| The Cr value of captions color 3 |
| Captions color 3 and video layer degree of mixing value |
SET_BUTTON_NUM is provided with number of buttons
This order setting can be used for user interaction and controls selectable overall number of buttons, and this order has a parameter:
Overall number of buttons (type UNIT8)
Table 10: overall number of buttons explanation
| B7 | B6 | B5 | B4 | B3 | B2 | B1 | B0 |
| Overall number of buttons | |||||||
SET_HLI_AREA is provided with highlighted viewing area
This order is provided with highlighted viewing area, and five parameters are arranged, following (table):
Table 11: highlighted viewing area parameter declaration
| The button of highlight bar correspondence number (UNIT8) |
| The horizontal starting position of highlight bar (UNIT16) |
| The vertical starting position of highlight bar (UNIT16) |
| Highlight bar horizontal width (UNIT16) |
| Highlight bar vertical height (UNIT16) |
SET_BUTTON_ACTION is provided with the button corresponding function
When the user chooses certain button, carry out the correspondence order of the corresponding button of order setting thus.This order has two parameters following (table 12):
Table 12: the button parameters explanation is set
| Corresponding button number (UNIT8) |
| Respective user action code (UNIT8) |
The pairing button of highlight bar number when corresponding button number is carried out interactive operation for the user
The respective user action code is divided into five classes following (table 13):
Table 13: user action code description
| The user action code | The user action explanation |
| 0 | The user operates line unit |
| 1 | The user operates down line unit |
| 2 | The user operates the left lateral key |
| 3 | The user operates the right lateral key |
| 4 | Key is chosen in user's operation |
An order of this order back is the user and carries out the order that will carry out after this kind action
SET_HLI_BUTTON is provided with selected button
This order can be provided with button that highlight bar selects number, has a parameter:
Button number (UNIT8): the button of desiring to choose number.
If button number equals 255, then being the actual button of choosing number is the setting of current audio language number;
If button number equals 254, then being the actual button of choosing number is the setting of current subtitle language number
Beginning is play in the CMD_PLAY_RSM memory
This order is used to notify navigational system to stop current broadcast process, and the broadcast point of remembering from memory storage is play.If do not have effective broadcast point in the memory storage, then begin to play from first play stream.This order does not have parameter
SET_STILL_TIME is provided with the still frame time
This order notice navigational system is with the time of the current static appointment of display image.If this order is not the last item order in the command set, then specify arrive rest time after, continue to carry out the later order of this order.This order has a parameter:
Rest time (UNIT8): unit is second, if this parameter is 0, then expression is forever static; If surpass 255 seconds rest time that needs, available a plurality of this is ordered and is realized
SET_HLI_ATTR is provided with the highlight bar display parameter
This order is used for being provided with the show palette and the degree of mixing parameter of the button of current highlight bar.This order has 16 parameters (type UNIT8) following (table 14):
Table 14: highlight bar display parameter explanation
| The Y value of highlight bar color 0 |
| The Cb value of highlight bar color 0 |
| The Cr value of highlight bar color 0 |
| Highlight bar color 0 and video layer degree of mixing value |
| The Y value of highlight bar color 1 |
| The Cb value of highlight bar color 1 |
| The Cr value of highlight bar color 1 |
| Highlight bar color 1 and video layer degree of mixing value |
| The Y value of highlight bar color 2 |
| The Cb value of highlight bar color 2 |
| The Cr value of highlight bar color 2 |
| Highlight bar color 2 and video layer degree of mixing value |
| The Y value of highlight bar color 3 |
| The Cb value of highlight bar color 3 |
| The Cr value of highlight bar color 3 |
| Highlight bar color 3 and video layer degree of mixing value |
SET_SEL_ATTR is provided with highlighted selected areas display parameter
This order is used for being provided with the show palette and the degree of mixing parameter of the button of current highlighted selected areas.This order has 16 parameters (type UNIT8) following (table 15):
Table 15: highlighted selected areas display parameter explanation
| The Y value of highlighted selected areas color 0 |
| The Cb value of highlighted selected areas color 0 |
| The Cr value of highlighted selected areas color 0 |
| Highlighted selected areas color 0 and video layer degree of mixing value |
| The Y value of highlighted selected areas color 1 |
| The Cb value of highlighted selected areas color 1 |
| The Cr value of highlighted selected areas color 1 |
| Highlighted selected areas color 1 and video layer degree of mixing value |
| The Y value of highlighted selected areas color 2 |
| The Cb value of highlighted selected areas color 2 |
| The Cr value of highlighted selected areas color 2 |
| Highlighted selected areas color 2 and video layer degree of mixing value |
| The Y value of highlighted selected areas color 3 |
| The Cb value of highlighted selected areas color 3 |
| The Cr value of highlighted selected areas color 3 |
| Highlighted selected areas color 3 and video layer degree of mixing value |
ENABLE_HLI allows highlighted demonstration
The demonstration of this order notice navigational system beginning highlight bar under all complete situation of captions and Chinese sorghum data.This order does not have parameter
DISABLE_HLI forbids highlighted demonstration
This order notice navigational system stops the demonstration of highlight bar.This order does not have parameter
CMD_STOP stops to play
This order notice navigational system stops the broadcast of disc.This order does not have parameter
SET_AUDIO selects audio language
The audio language of being chosen when this order is used to select video flowing to play is mainly used in audio language is set in the menu.This order has a parameter:
Audio frequency stream number (UNIT8): this audio frequency stream number of notice navigational system is set to the separatory audio number of system
SET_CAPTION selects subtitle language
The subtitle language of being chosen when this order is used to select video flowing to play is mainly used in subtitle language is set in the menu.This order has a parameter:
Captions stream number (UNIT8): notice navigational system this captions stream number is set to separatory captions of system number
CMD_END orders ending
The end of this order expression command set does not have parameter
The use of order control documents
Because all order control content are concentrated on the file, simplified the employed command set of realization navigation feature simultaneously, what control documents was shared is a minimal continuous storage space, and then all the order control informations in the disc can disposable whole importing players the memory block standby, make that like this use of order control documents is very simple, when needing control information, need not to calculate again the physical address removal search disc of disc, only need in the internal storage space of player, to inquire about to get final product, the order of player control realizes becoming very simple and flexible like this, and the system overhead of the frequent search disc that saves.
Concrete use is as follows:
The information of the order control documents filename that 1, comprises in the attribute information according to disc reads this order control documents in disc, with the disposable player stores of transferring to of its information, and current order control table is positioned first command set.Can select to finish the parsing of all command sets this moment, also can be chosen in to confirm in the playing process to carry out to resolve the command set that needs execution before.
2, enter broadcast state after, the execution time by the current command collection relatively and play in system time after decision whether carry out current command set, this judgements only arrives and current command set just carries out when being not sky when system time.
When 3, system time was not less than the execution time of the current command collection, order was carried out all orders that comprise that the current command is concentrated, if do not do the parsing of this command set before, then resolve earlier, and the order fill order is concentrated all orders that comprise.
4, the current command collection complete after, get back to broadcast state according to the systematic parameter after setting up, simultaneously the current command collection is navigated to the Next Command collection of the command set that executed just now.(order of command set can sort according to label, also can sort according to the execution time of command set)
5, broadcast state can be got back to by system after command set was carried out and finished.The execution of all command sets all be order with instant, if the execution time satisfy condition and then enter by the new command sequence of the execution of the command set of reorientation.
6, the execution in step 2-step 5 that circulates is successively promptly finished a concrete use of the present invention.
Fig. 1 has described system's control flow of above-mentioned use, cooperatively interacting by above order and command set as can be seen, just can reach less system overhead, the simple and clear manufacturing process of being convenient to disc, the order of player is realized simply, and can support the command control system of the navigation feature that comprises the user interaction function commonly used.Certain concrete case study on implementation of the present invention has only been described here especially, can be according to the actual requirements, can make various modifications not breaking away from the spirit and scope of the present invention.
Claims (4)
1, a kind of method that is used for video-audio player playing process order control, it is characterized in that, independently order control documents to store all must ordering with one, the order control documents is made up of some command sets, each command set is made up of some orders, order control documents storage disks is desired to be used for controlling the file of the information of disc playing sequence or result of broadcast, include the control that the broadcast between each audio frequency and video source connects, audio frequency and captions control is set, the control of captions and highlight bar display effect, system carries out these control by a series of command set.
2, the method that is used for video machines playing process order control according to claim 1, it is characterized in that, store all must ordering independently to order control documents, each command set was carried out by storage order in the time of formulating, each order has the parameter of oneself, and command set can be expanded.
3, according to claim 1 or the 2 described methods that are used for video machines playing process order control, it is characterized in that described order comprises: playing process control; The control that the broadcast state of each audio/video flow and broadcast each other connect; The setting of play parameter; The setting of some parameters of using in the player playing process comprises the selection of audio frequency and subtitle language; The setting of captions parameter; The used palette of captions and with the setting of the mixability of video layer; The control of captions highlight bar.
4, the method that is used for video machines playing process order control according to claim 3, it is characterized in that, the control command of described highlight bar comprises that the setting of highlight regions, highlighted palette reach and the setting of video layer degree of mixing, the setting of relative handover information and the setting of push button function between the button.
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| CNB2004100165388A CN1295626C (en) | 2004-02-26 | 2004-02-26 | Method for controlling command in playing procedure of video player |
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| CNB2004100165388A CN1295626C (en) | 2004-02-26 | 2004-02-26 | Method for controlling command in playing procedure of video player |
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| CN1295626C true CN1295626C (en) | 2007-01-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101593105A (en) * | 2008-05-26 | 2009-12-02 | 新奥特（北京）视频技术有限公司 | The method of utility command collection in a kind of video production software |
| JP5032408B2 (en) * | 2008-07-25 | 2012-09-26 | パナソニック株式会社 | Simple resume reproduction apparatus and simple resume reproduction method |
| CN102455980A (en) * | 2010-10-18 | 2012-05-16 | 鸿富锦精密工业（深圳）有限公司 | System and method for controlling electronic device by using file |
| CN114253483B (en) * | 2021-12-24 | 2023-07-04 | 深圳忆联信息系统有限公司 | Command-based write cache management method and device, computer equipment and storage medium |
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| US6067400A (en) * | 1996-03-29 | 2000-05-23 | Matsushita Electric Industrial Co., Ltd. | Multimedia optical disc having improved interactive reproduction procedure, a reproduction apparatus and a method for such a disc |
| CN1359521A (en) * | 1999-12-27 | 2002-07-17 | Dvd技术株式会社 | Method for setting captions of DVD |
| WO2003023781A1 (en) * | 2001-09-10 | 2003-03-20 | Thomson Licensing S.A. | Extension of m3u file format to support user interface and navigation tasks in a digital audio player |
-
2004
- 2004-02-26 CN CNB2004100165388A patent/CN1295626C/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6067400A (en) * | 1996-03-29 | 2000-05-23 | Matsushita Electric Industrial Co., Ltd. | Multimedia optical disc having improved interactive reproduction procedure, a reproduction apparatus and a method for such a disc |
| CN1359521A (en) * | 1999-12-27 | 2002-07-17 | Dvd技术株式会社 | Method for setting captions of DVD |
| WO2003023781A1 (en) * | 2001-09-10 | 2003-03-20 | Thomson Licensing S.A. | Extension of m3u file format to support user interface and navigation tasks in a digital audio player |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1560749A (en) | 2005-01-05 |
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Address after: 200030 A building, No. 5, Huaihai West Road, Shanghai, 55 Patentee after: AMLOGIC (SHANGHAI) Co.,Ltd. Address before: 200030 A building, No. 5, Huaihai West Road, Shanghai, 55 Patentee before: AMLOGIC (SHANGHAI), Inc. |
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Granted publication date: 20070117 |