CN1306518C - Management method and apparatus for caption data of optical disk - Google Patents
Management method and apparatus for caption data of optical disk Download PDFInfo
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- CN1306518C CN1306518C CNB031414052A CN03141405A CN1306518C CN 1306518 C CN1306518 C CN 1306518C CN B031414052 A CNB031414052 A CN B031414052A CN 03141405 A CN03141405 A CN 03141405A CN 1306518 C CN1306518 C CN 1306518C
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- 230000003287 optical effect Effects 0.000 title claims abstract description 27
- 238000007726 management method Methods 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract description 29
- 238000013523 data management Methods 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims description 10
- 230000002123 temporal effect Effects 0.000 claims description 3
- 230000009191 jumping Effects 0.000 abstract 1
- 241001269238 Data Species 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The present invention relates to a caption data management method of an optical disk and a device thereof. A caption file containing caption data playing time, caption data size and actual caption data is record in a certain recording area of an optical disk. The caption data management method comprises the steps: in the first step, a caption file on the optical disk for recording the caption file in the certain recording area is read; in the second step, the corresponding actual caption data is output according to the read caption file. The caption data management method of an optical disk and the device of the method of the present invention have high practical value. All caption data are recorded in a specific area of the optical disk; firstly, the caption file stored in the specific recording area is read at the time of playing; when the commands except normal playing commands comprising a jumping command, a browsing command, a slow playing command, etc. are executed, the corresponding caption data can be output and played according to the stored caption file.
Description
(1) technical field
The present invention relates to a kind of caption data management method of CD, is according to the caption information that is recorded in the certain zone of CD, realizes the synchronous playing of corresponding subtitle in the actual play process.
(2) background technology
Generally speaking, multifunctional digital optical disc apparatus (DVDP:Digital Versatile Disc Player) is to be recorded in DVD, data on the CDs such as HD-DVD are play, along with the compression of image and sound data, its performance of the development of transmission technology is also obtaining the development that leaps.
Fig. 1 is the pie graph of above-mentioned general optical disc apparatus.This optical disc apparatus comprises as shown in the figure: rf processor 12, read the light picker 11 of video disc recording data and the data that light picker reads increased frequency and export or will detect from the RF signal that CD D reads; Signal processor 13 will carry out signal Processing and be transported to display equipment (A/V) from the data of rf processor 12 outputs; Microprocessor 14 is controlled the overall controls such as data-switching of above-mentioned signal processor 13, the attended operation key; Storer 15, required various deal with data in the storage microprocessor 14.In addition, also be included under the control of microprocessor 14, control the sliding motor 17 of mobile light picker 11 and drive the rotary engine 18 of CD D rotation, and light picker 11 is carried out servomechanism 16 that tracking servo operation and focusing operation control etc.
Above-mentioned CD D records the caption data of several language, possesses the corresponding font of various language in the optical disc apparatus, according to the caption data of user's selection playback process corresponding language.
In addition, Fig. 2 is the record aspect graph of above-mentioned caption data on CD.Above-mentioned caption data separates record with video, voice data and plays, shown in Fig. 2 (a), during record, even the caption data of forming a complete sentence in the fit VOB of record set also be usually by 2 bytes (Byte) dispersed record on record surface.During broadcast, shown in Fig. 2 (b), the caption data of arrangement dispersed record constitutes a complete sentence (example: in the time of I Love You), just export demonstration shown in Fig. 2 (c).
But, the aforesaid caption data that is recorded, carrying out normal play operation in addition, such as jump commands (skip), navigation commands (scan) is when putting the operation beyond the normal play such as order slowly, aforesaid caption data is that dispersed record is on CD, so can't put caption data simultaneously in order, thereby normal output data just, caption information can't be shown.
(3) summary of the invention
The present invention is based on to address the above problem and carries out.The object of the invention is to provide a kind of caption data management method of CD, and a series of caption information that will write down records the certain posting field of CD.During broadcast, as mentioned above, the caption information that writes down is all read and stores, then, export corresponding caption data with the corresponding broadcast of CD actual play time.
The object of the present invention is achieved like this:
A kind of caption data management method of CD is characterized in that: may further comprise the steps:
Effect of the present invention:
Have aforesaid structure, and the caption data management method of the CD of as above operating of the present invention has very high practical value.The present invention writes down all caption datas in the specific region of CD, during broadcast, at first read the caption information of the above-mentioned specific posting field of storage, make and carrying out jump commands, navigation commands, when putting the order beyond the normal play order such as order slowly, also can play corresponding caption data according to the caption information output of above-mentioned storage.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
(4) description of drawings
Fig. 1 is the pie graph of general optical disc apparatus;
Fig. 2 is the general record aspect graph of caption data on CD;
Fig. 3 is the operational flowchart of caption data management method in the optical disc apparatus of the present invention;
Fig. 4 is the caption data record format figure of CD of the present invention.
The explanation of main symbol in the accompanying drawing:
11, light picker 12, rf processor
13, signal processor 14, microprocessor
15, storer 16, servomechanism
17, sliding motor 18, rotary engine
(5) embodiment
Below, the embodiment to the caption data management method of CD of the present invention is elaborated with reference to the accompanying drawings.
Referring to Fig. 1.
CD caption data management devices of the present invention (hereinafter to be referred as optical disc apparatus) comprising: light picker 11, read the data that CD D writes down; Rf processor 12, the data that light picker 11 is read increase output frequently or will detect from the RF signal that CD D reads; Signal processor 13 will carry out signal Processing and be transported to display equipment from the data of rf processor output; Microprocessor 14 is controlled the overall controls such as data-switching of above-mentioned signal processor 13; Storer 15, required various deal with data and also being included under the control of microprocessor 14 in the storage microprocessor 14, control the sliding motor 17 of mobile light picker 11 and drive the rotary engine 18 that CD D rotates, and light picker 11 is carried out the servomechanism 16 of tracking servo operation and focusing operation control.Wherein, described storer 15 is described subtitle files that storage is read from the CD D that records subtitle file in certain posting field; Described microprocessor 14 is to export actual caption data according to the caption information of implementing storage.
Has the optical disc apparatus of the present invention of structure as mentioned above, the subtitle file that comprises contents such as all caption datas, caption data reproduction time and caption data size, be recorded in certain caption information posting field of CD D, when above-mentioned CD D is inserted into, optical disc apparatus of the present invention just reads the subtitle file that is recorded in the caption information posting field and stores in the storer 15, then when playing CD D, according to the subtitle file that is stored in above-mentioned storer 15, export corresponding caption data simultaneously with the video/audio data of playing.
Fig. 3 is the operational flowchart of caption data management method in the optical disc apparatus of the present invention.As shown in the figure, caption data management method of the present invention is applicable to when certain posting field records the dvd playback of a series of caption informations.
In addition, Fig. 4 is the caption data record format figure of CD of the present invention.In the above-mentioned CD, as shown in the figure, be used for the subtitle file (caption file) of Play Control caption data and certain posting field that audio/video title data (title) separately is recorded in CD.Above-mentioned subtitle file is made up of a plurality of caption data pieces (captiondata block), above-mentioned caption data piece is by a series of caption datas with continuity: caption data # 1, caption data # 2 ... caption data #N (caption data# 1, caption data# 2 ... captiondata#N) and corresponding each caption data head (header) form.Above-mentioned head partly comprises the reproduction time information (reproducing time) and the data size information (data length) of caption data.
The operating process of caption data management method in the optical disc apparatus of the present invention (simultaneously referring to Fig. 1,3):
Flow process begins;
S11: as mentioned above, include the subtitle file of information such as the reproduction time of the caption data that will play, this caption data and this caption data size, be recorded in the posting field certain on the CD D record surface, when this CD is inserted into, identification CD D;
S12: read and handle above-mentioned subtitle file and be stored in the middle of the storer 15, the data storage of the subtitle file through reading processing is behind storer 15 certain zones, according to user command execution corresponding operating as mentioned above;
S13: if when the operational order of above-mentioned user input is play command, optical disc apparatus will drive above-mentioned CD D, and the video that writes down on the reading and recording face, voice data, and carry out signal Processing are transported to picture with its broadcast or loudspeaker get on.
S14: then, optical disc apparatus is carrying out CD D in the process of above-mentioned a series of play operation, can continue the temporal information that the subtitle file of storage on the actual play time of more above-mentioned CD D and the above-mentioned storer 15 is play,
S15: according to result relatively, judge the caption data that whether has needs output in the actual play process of CD D, if there is not the caption data of needs output in the actual play process of CD, then optical disc apparatus still is in the playing flow of S13;
S16: if need playing caption data in the actual play process of above-mentioned CD, just in the middle of storer 15, read corresponding caption data, above-mentioned caption data through signal Processing is input to current picture;
Whole flow process finishes.
In addition, as previously mentioned, when carrying out normal play, according to the user require needs to skip the track in certain zone the time, will cross this regional track at a high speed, at this moment, the reproduction time of the subtitle file of storage compares mutually in dvd playback time that the current posting field of skipping is read and the storer 15, if the starting point after the current jump begins to have the caption data that requires broadcast, just carry out the playback process of corresponding subtitle data.
In addition, when carrying out aforesaid normal play, after the user imports navigation commands, just will carry out the high speed retrieval to the track of respective regions.At this moment, the reproduction time of the subtitle file of storage compares mutually in CD D reproduction time that the current posting field of retrieving is read and the storer 15, starting point after the current jump begins, if there is the caption data that requires broadcast, just carries out the playback process of corresponding subtitle data.
In addition, carry out in the process of foregoing normal play, when the user imports the slow play order, in slow play, retrieve caption data that current requirement plays and its broadcast.
Again in addition, because just having inserted caption information that when identification just write down in the certain posting field to CD D at CD D has carried out reading processing and has stored, so, aforesaid optical disc apparatus can be according to including above-mentioned certain words of having stored caption data, and the starting point of playing output video data or corresponding subtitle data begins to move immediately.
Though the present invention describes with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, should understand and wherein can make variations and modifications and do not break away from the present invention in a broad sense, so be not as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the distortion of the above embodiment.
Claims (1)
1, a kind of caption data management method of CD is characterized in that may further comprise the steps:
Step 1, optical disc apparatus reads in the subtitle file of certain posting field record on the CD, and be stored in storer in the described device, command execution according to the user is operated accordingly, and described subtitle file includes the caption data that will play, the reproduction time of this caption data and the information of this caption data size;
Step 2, when described user's order was play command, optical disc apparatus drove described CD, read the video, the voice data that write down on the described cd-rom recording surface, and carried out signal Processing, with its broadcast;
Step 3, described optical disc apparatus reads the video that writes down on the described cd-rom recording surface, in the time of voice data, read the subtitle file that writes down on the described cd-rom recording surface, and continue the temporal information of the subtitle file broadcast of storing on the actual play time of more described CD and the above-mentioned storer by the microprocessor in the described device, judge whether the current time needs the caption data that shows, when needing playing caption data in the actual play process of above-mentioned CD, just read corresponding subtitle file from described storer, the above-mentioned subtitle file that reads is through the corresponding actual caption data of output after the signal Processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031414052A CN1306518C (en) | 2003-07-04 | 2003-07-04 | Management method and apparatus for caption data of optical disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031414052A CN1306518C (en) | 2003-07-04 | 2003-07-04 | Management method and apparatus for caption data of optical disk |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1567467A CN1567467A (en) | 2005-01-19 |
| CN1306518C true CN1306518C (en) | 2007-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031414052A Expired - Fee Related CN1306518C (en) | 2003-07-04 | 2003-07-04 | Management method and apparatus for caption data of optical disk |
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| Country | Link |
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| CN (1) | CN1306518C (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1130786A (en) * | 1994-12-30 | 1996-09-11 | 大宇电子株式会社 | Video compact disc having caption data recorded thereon and reproducing method and apparatus thereof |
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2003
- 2003-07-04 CN CNB031414052A patent/CN1306518C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1130786A (en) * | 1994-12-30 | 1996-09-11 | 大宇电子株式会社 | Video compact disc having caption data recorded thereon and reproducing method and apparatus thereof |
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| CN1567467A (en) | 2005-01-19 |
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Granted publication date: 20070321 |