JP2002245760A - Optical disk reproduction control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To search for a fine reproduction position without adding the management information of a jump destination table or the like inside an optical disk. SOLUTION: All the text data of the optical disk are looked ahead by a data reader (S01), and when the text data are present (S02), the text data and the display start positions of the respective text data are stored in a storage device (S03) and the text data are sent to a text display device (S04). The text data are displayed by the text display device, and when the command of 'selecting an optional text from a text menu' is issued by a user operation (S05), the display start position of the text data selected by the user operation is acquired from the storage device, the position of sound data corresponding to the text data is specified from the acquired position (S06), the reproduction position is moved there and reproduction is started (S07).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disk playback control method for controlling playback using text data interleaved in audio data.

[0002]

2. Description of the Related Art In order to realize a search for a voice to be heard, an optical disk reproducing apparatus 21 as shown in FIG.
When music is searched for and played back, music is selected by the remote control device 22. As shown in FIG. 17 (b), the user inputs a song number directly from the remote control device 22, or selects and designates a song number from the song name while viewing the song name on the screen. The playback device 21 plays back the specified music from the beginning. A reproduction method for CD audio, video CD, and the like corresponds to this. With this method, it is not easy to search for a desired point in the middle of a song. In practice, the user has to specify the time of the position to be reproduced, or the user must listen to music while fast-forwarding and restart reproduction from the middle of the music. In the case of specifying time, it is necessary for the user to know the reproduction time and the approximate position of the sound in the music in advance, and it is difficult to search accurately. When searching while listening to the voice during fast-forward, the user needs to be careful, and it is difficult to resume at the correct playback position.

Also, as shown in FIG. 17C, a method of displaying the lyrics of a song on a screen, selecting a part of the lyrics by a user, and playing the song from the middle of the song corresponding to the designated lyrics. There is. This method can be realized by conforming to the DVD audio standard. According to the DVD audio standard, the relationship between lyrics and the middle of a song is recorded in advance on the optical disc as management information (jump destination table) separately from music data, and the position to be reproduced is specified using this data. Has been realized.

According to the DVD audio standard, as shown in FIG. 2, character information (hereinafter referred to as text data) can be embedded (arranged in an interleave) in audio data. The audio data 41 and the text data 42 are arranged in an interleaved manner. The optical disk reproducing device can display the text data while reproducing the audio data. In order to display text data in synchronization with the audio data being played back, such a data arrangement is considered, but this text data is not assumed to be used for music (song) selection, etc. It is provided for display purposes.

FIG. 18 shows a conventional optical disk reproducing apparatus. The optical disk reproducing apparatus includes a data reading device 12 for reading management information and data from an optical disk 11, a management information storage device 13 for storing captured management information, a data storage device 14 for storing captured data, The system includes a data decoding device 15 for decoding the captured data, a control device 16 for controlling these devices, and a text display device 17 for displaying text data.

[0006] The management information read from the data reading device 12 is stored in the management information storage device 13, and the control device 16 reads the information from the management information storage device 13 and analyzes it. The data reading device 12 is controlled based on the analyzed data, and data to be read is specified. The data decoding device 15 has a data sorting function, and the data read from the optical disk 11 by the reading device 12 is sorted by the data decoding device 15 into image data, audio data, and text data. The classified data is stored in each of the image data storage area, the audio data storage area, and the text data storage area of the data storage device 14. Data decryption device 15
Then, the image data stored in the image data storage area is extracted, processed by an image data decoding function of converting the image data into data to be displayed on a monitor, and output to the monitor. Also,
The audio data stored in the audio data storage area is extracted, processed by an audio data decoding function of converting the audio data into data to be output to a speaker, and output to the speaker. Further, the text data stored in the text data storage area is taken out, processed by a text data decoding function of converting the text data into data to be displayed as characters, and output to the text display device 17. Reproduction is realized by performing these processes in parallel.

The text display device 17 displays only characters (text data), and the monitor displays moving images, still images, and characters (the monitor 31 in FIG. 19A).

As described above, in order to play back from the middle of the song corresponding to the designated lyrics, the control information is analyzed by the control device 16 and the data reading device 12 is controlled by the control device 16. It is realized by designating the data to be read. Therefore, the jump destination table for designating the data to be read must be recorded in the management information in the optical disk 11. If this information is not available, it is not feasible.

On the other hand, in order to realize selection and designation of reproduction contents, specifically, selection and designation of contents to be reproduced, such as karaoke, in which only vocal sounds are erased and reproduced. According to the prior art, data of different contents are recorded on a plurality of channels (for example, R channel, L channel), and the contents to be reproduced are selected by switching channels, or a plurality of streams (for example, audio stream 1 and audio stream 2). To record data with different contents,
There is a method of selecting contents to be reproduced by switching streams. There is an upper limit on the number that can be recorded in any of a plurality of channels or a plurality of streams, and it is not possible to record more contents. Therefore, it is impossible to specify a content exceeding that.

[0010]

As described above, in the prior art, management information and the like must be additionally recorded in the optical disc in order to realize a fine position search.
As shown in FIG. 19A, if a jump destination table is added as additional management information, the recording capacity of the optical disk increases. Further, even if it can be added, the work of the disc creator is required, and the cost increases, which is not practical.

On the other hand, there is also an upper limit as described above when selecting and specifying the content to be reproduced.

It is an object of the present invention to provide an optical disk reproduction control method capable of realizing a fine reproduction position search without adding management information such as a jump destination table or the like in the optical disk.

Another object of the present invention is to provide an optical disk reproduction control method capable of expanding the range of selection and designation of contents to be reproduced.

[0014]

SUMMARY OF THE INVENTION The present invention relates to an optical disk on which data having a structure in which text data is arranged in an interleaved manner within the audio data is output from a speaker and the text data is displayed on a text display device. An optical disk playback control method for displaying and playing back audio data according to claim 1, wherein the optical disk playback control method according to claim 1 extracts desired text data and records audio data corresponding to the extracted text data from a recording position of the extracted text data. A position is specified, and reproduction is performed from the specified position.

According to a second aspect of the present invention, there is provided an optical disk reproduction control method in which all or a part of text data in an optical disk is pre-read, and the pre-read all text data is displayed on a text display device. A recording position of audio data corresponding to one piece of text data selected from the specified position is specified, and reproduction is started from the specified position.

According to a third aspect of the present invention, in the optical disk reproduction control method, when a reproduction forward search or a reproduction reverse search is specified during reproduction, the data is read to a recording position of the next text data existing in the specified search direction. A skip search is performed, a recording position of audio data corresponding to the searched text data is specified, and reproduction is restarted from the specified position.

According to a fourth aspect of the present invention, in the optical disk reproduction control method, when a continuous search is designated during reproduction, a process of skipping to a recording position of the next text data and performing a search is performed. A process of specifying a recording position of audio data to be reproduced and performing reproduction for a predetermined time from the specified position is repeated.

According to the present invention, the recording position of the audio data corresponding to the text data is specified,
By playing back from the specified position, the first text data of the portion to be played back is selected or searched, so that the optical disc can be played back without requiring additional information such as management information such as a jump destination table in the optical disc. When the user enjoys or uses voice such as music in the device, he / she can search for the voice he / she wants to hear in fine units.

According to a fifth aspect of the present invention, there is provided an optical disk reproduction control method in which reproduction of text data and audio data is restricted by restricting reproduction of at least one of text data including or not including a specified keyword and audio data corresponding thereto. An optical disk reproduction control method characterized by performing:

According to a sixth aspect of the present invention, in the optical disk reproduction control method, all or a part of the text data in the optical disk is pre-read, a keyword included in all the pre-read text data is displayed on a text display device, and the text data and the voice are reproduced. The reproduction of data is performed by skipping text data including or not including a specified keyword from all displayed keywords and voice data corresponding to the text data.

According to a seventh aspect of the present invention, there is provided an optical disk reproduction control method which pre-reads all or a part of text data in an optical disk, displays a keyword included in the pre-read text data on a text display device, and displays the text data and audio data. The reproduction of data is performed by muting audio data corresponding to text data including or not including a specified keyword from all displayed keywords.

According to an eighth aspect of the present invention, there is provided an optical disk reproduction control method which pre-reads all or a part of text data in an optical disk, displays a keyword included in the pre-read text data on a text display device, and displays the text data and audio data. Data reproduction is performed by hiding text data containing or not including a specified keyword from all displayed keywords.

According to a ninth aspect of the present invention, in the optical disk reproduction control method, all or a part of the text data in the optical disk is pre-read, a keyword included in the pre-read text data is displayed on a text display device, and the text data and audio data are displayed. Data reproduction is performed by hiding text data including or not including a specified keyword from all displayed keywords and muting audio data corresponding to the hidden text data. .

According to the fifth to ninth aspects of the present invention, the reproduction of at least one of the text data including or not including the designated keyword and the audio data corresponding to the text data is regulated to be performed on the optical disc. The need for additional information such as management information such as a jump destination table or the like is not required, and the range of selection and designation of reproduction contents can be expanded by the method of restricting reproduction. In addition, regarding the method of restricting the reproduction, the text data and the audio data corresponding to the text data are skipped as in claim 6, the audio data is muted as in claim 7, and the text data is not encoded as in claim 8. Desired reproduction contents can be realized by restricting according to the contents to be reproduced, such as displaying, or hiding text data and muting audio data as in claim 9. Furthermore, the reproduction content can be changed by changing the designation of the keyword.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention uses text data embedded in audio data so that a fine position search can be performed without adding management information as described in the prior art. . For example, text data in music data specified by the DVD audio standard described above is used.

The text data is information relating to the music data, and is specifically text representing characters such as lyrics, singer names, and author names. Originally, this data was prepared for display purposes, but of course this is displayed,
By using it also for playback control, it is possible to perform a fine position search, select and specify playback content, and expand the range of playback control. The text data and the music data are logically linked information in the optical disc.
Once the position of the text data is determined, the position of the music data can be uniquely determined.

If text data 42 is embedded and recorded in audio data 41 such as music data as shown in FIG. 2, it can be realized by means other than DVD audio. For example, DVD-RAM, DVD-R, DVD-RW, DV
Even in a recording medium such as D + RW or DVD recorder,
By creating similar data, the reproduction control method of the present invention can be realized.

Further, not only the position is specified, but also the content to be reproduced is selected and specified by using the content described in the text data, thereby realizing a wider range of reproduction control.

The details will be described below with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of an optical disk reproducing apparatus for realizing the present invention, and portions corresponding to those in FIG. 18 are denoted by the same reference numerals, and detailed description thereof will be omitted.
In contrast to the configuration of FIG. 18, the configuration of FIG. 1 allows the control device 16 to refer to the text data storage area in the data storage device 14 and stores the referenced text data in the control device 16.
By analyzing and using the above, it is possible to search for a more detailed reproduction position and select and specify the content to be reproduced. The control device 16 also controls the text display device 17.

A specific example of a method of realizing the processing in the control device 16 will be described below.

[1] A method of searching for an arbitrary text data when listening to a music disc will be described.

It is assumed that music is accompanied by lyrics (text data), and the lyrics are displayed one by one in sequence with the music. Since the text data is mixed with the audio data, the text data can be searched and reproduced from the location. FIG. 3A shows a specific example. According to the voice, in order, text data such as "Do is a donut do" → "Le is a lemon" → "Mi is everyone's mi" → "Fa is a fight of fa" → "So is a blue sky" Assume a disk that is Specifically, using such a disc, (1-1) a method of pre-reading and displaying all or a part of the text data and reproducing the text data from the designated text data, and (1-2) a method by the user A method of skipping and retrieving text data during reproduction by operation and reproducing from the next text data, (1-3) A method of skipping and retrieving text data in the reverse direction of reproduction and reproducing from the previous text data display position , (1-4) a method of reproducing a place where text data exists at predetermined time intervals and skipping to a place where text data exists one after another;
The details will be described below.

In the case of (1-1), all or part of the text data on the optical disk 11 is pre-read and output to the text display device 17 to form a text menu. Based on this, reproduction is started from the position where the text data designated by the user is displayed in units of one text data, and the search is started. FIG. 3B shows a specific example. Optical disk 11
Is read ahead and displayed on the text display device 17 as a text menu. At this time, for example, when the item "My is everyone" is selected, the player moves the playback position to "My is everyone" and plays it.

FIG. 4 shows a control flow. Control device 16
Controls the data reading device 12, the data decoding device 15, and the text display device 17 to perform the following operations. When the text search mode setting operation is not performed by the user (No in S001), the normal reproduction process (S00
The process proceeds to 2), but when the setting operation of the text search mode is performed (Yes in S001), the data reading device 1
2, the text data of the entire or a part of the optical disk 11 (FIG. 4 shows the entire case) is read ahead (S0).
1). The data decoding device 15 discriminates the type of data read by the data reading device 12 and, if text data exists (S02), stores the text data and the recording position of each text data on the optical disk 11 in the data storage device 14 (storage device). ) Is stored in the text data storage area (S03), and the data decoding device 15 takes out the text data from the text data storage area, processes the text data with the text data decoding function, and sends it to the text display device 17 (S04). ). When the text data (text menu) is displayed by the text display device 17 and a “select any text from text menu” command on the text display device 17 is issued by the user operation (S05), the control device 16 The recording position of the text data selected by the above-mentioned user operation is acquired from the text data storage area of the storage device 14, and the position (reproduction position) of the audio data corresponding to the text data is specified from the acquired position. (S0
6) Move the playback position there and start playback (S
07).

The user operation in step S05 is, for example, an operation of designating the first phrase of a portion to be reproduced while viewing the text menu display screen shown in FIG. 3B. If "mi is everyone's mi" is specified, the text display screen will be "mi is everyone's mi", and the reproduction will be started from the corresponding audio data.

Further, for example, assuming that there is an optical disk 11 containing 10 songs per sheet, in step S01, if all text data is to be read ahead, all text data of 10 songs are read ahead (a), and a part of text data is read. When pre-reading data, pre-reading only the first track of the first song (b)
There is a case where the whole song is read ahead (c). Which of (a), (b), and (c) is selected by the design side by controlling the data storage time and storage memory.

According to this method, the same function as the position designation of the voice in the prior art can be realized without adding management information. There is no need to record the jump destination table (additional management information) on the optical disc as shown in FIG.
As shown in (b), the increase in the capacity of the optical disk can be suppressed, the work of the disk creator is not required, and the increase in cost can be suppressed.

Using the information on the position of the text data,
Furthermore, an unprecedented reproducing method such as (1-2), (1-3) and (1-4) can be realized.

In the case of (1-2), the reproduction position is moved by reading and searching from the current reproduction position to the position where the text data exists in the forward direction by the operation of the user during the reproduction of the optical disk. Playback from that position. FIG. 3C shows a specific example. "Do is a donut do"
While playing, "Forward text search" by user operation
When the command is issued, the player skips to the next text data and searches for the text data, and reproduces the text data from the point when the text data "Le is a lemon" is found.

FIG. 5 shows a control flow. Optical disk 11
After the start of the reproduction (S08), if there is text data (S02), the data is fetched (S09) and sent to the text display device 17 (S04). A "forward text search" command is issued by a user operation (S10).
Then, the search is skipped to the next text data, the position of the audio data is specified from the search position, and the reproduction position is moved to the position (S11). The reproduction ends at the end of the optical disk 11 (S12).

In steps S10 and S11 described above, the control device 16 which has received the "forward text search" command by the user operates until the next text data enters the text data storage area of the data storage device 14. High-speed search of the data reader 12 in the forward direction,
Return to normal playback from the disk recording position at the time when the text data is entered.

Next, in the case of (1-3), the playback position is skipped from the current playback position to the position where the text data exists in the reverse direction by the user's operation during the playback of the optical disk, and the search position is determined. Move and play from that position. FIG. 3D shows a specific example. "Le is a lemon."
"Reverse text search" by user operation during playback
When the command is issued, the player continues reading and searching until the next text data is found in the direction opposite to the playback forward direction, and starts playing when the text data "do is a donut" is found.

FIG. 6 shows a control flow. Optical disk 11
After the start of the reproduction (S08), if there is text data (S02), the data is fetched (S09) and sent to the text display device 17 (S04). A "reverse text search" command is issued by a user operation (S13).
The unit returns in the opposite direction and the skipped text data is searched (S14), and the process is repeated until the text data is found (S15). The position of the voice data is specified from the search position of the text data, and reproduced at that position. The position is moved (S16). The reproduction ends at the end of the optical disk 11 (S12).

In the above steps S13 to S16, the control device 16 which has received the "reverse text search" command by the user operation returns the reproduction position to the unit determined by the data reading device 12, and the data storage device 14
Until the next text data enters the text data storage area, the data reader 12 is searched at high speed in the forward direction. If text data comes in the meantime, the process returns to the normal reproduction from the disc recording position at that time, and if not, the above processing is repeated. For example, in the playback order,
When there is a position of ~ such as → → → → ... (here, the interval between the positions of ~ is S1
4), if a “backward text search” command is issued at the position during playback, the text data is searched for between the position and the position. If it does not exist, it returns to the position and searches for text data between.

Next, in the case of (1-4), during the reproduction of the optical disk, the user performs an operation to skip the search from the current reproduction position to the position where the text data exists in the forward direction, and fix or read from the position. An arbitrary time specified by the user (hereinafter referred to as “specified time”) is reproduced. Thereafter, the search is skipped again to the location where the next text data exists, and the specified text data is reproduced for the specified time. By repeating this control, the position where the text data exists is reproduced at the head for the specified time. FIG. 3E shows a specific example.
If the user issues a "Forward text continuous search" command while playing "Do is a donut", the player will continue playing for a certain period of time, skip to the next text data and search, Regenerate from the point where the data "Le is a lemon" is found. After the reproduction is continued for a certain period of time again, the next text data is skipped. This operation is repeated.

FIG. 7 shows a control flow. Optical disk 11
After the start of the reproduction (S08), if there is text data (S02), the data is fetched (S09) and sent to the text display device 17 (S04). When the "forward text continuous search playback" command is issued by the user's operation (S17), the next text data is searched, the position of the audio data is specified from the search position, and the reproduction position is set at that position. It is moved (S11), and normal playback is performed for a specified time (S18). Thereafter, if the mode is the “forward text continuous search reproduction” mode (S19), the above processing is repeated. The reproduction ends at the end of the optical disk 11 (S12).

The above steps S17, S11, S18,
In S19, the control device 16 that has received the "forward text continuous search and playback" command by the user operates the data reading device 12 until the next text data enters the text data storage area of the data storage device 14. High-speed search in the direction, return to normal playback for the specified time from the disk recording position when the text data entered,
If the specified time has passed, the above process is repeated. When the point to be heard is located, switching to normal reproduction may be performed.

According to the above method, it is possible not only to jump in a song as shown in (1-1) without increasing the disk capacity, but also to utilize the text data position information during reproduction, and (1-2), (1-3), (1
The new function shown in -4) becomes possible. Furthermore, a control method using the contents of the text data will be described below as a further development, in addition to the control based on only the position information of the text data.

[2] A description will be given of a method in which selection conditions are determined in advance by the user and reproduction is performed according to the determined conditions.

Assume that a disc is recorded in which dialogues of a stage in which a plurality of characters appear are recorded, and text data for identifying the characters is embedded in accordance with the dialogue (voice data). As a specific example, FIG. 8 shows a timing chart of text display and audio output when normal playback of a disc is performed. When A speaks, "A"
? It is assumed that there is text data of "", and when B speaks, there is text data of "B""." Specifically, (2-1) a method of reproducing only a scene of an arbitrary character selected by the user and skipping the other scenes, and (2-2) only a sound of an arbitrary character selected by the user (2-3) A method of displaying only text data of an arbitrary character selected by the user, and a method of hiding others, and (2-4) A method of (2-2) as described above (2-2) ) And (2-
The details of the method of 3) in which only the voice output and text data of an arbitrary character selected by the user are displayed by the combination of 3), and the other method is to mute the voice and inhibit the display of the text data. By this method, reproduction with a high learning effect can be realized. Here, the method is described step by step so that the dialogue of the stage can be efficiently remembered.

In the case of (2-1), an arbitrary character is selected in advance by the operation of the user, and only the speech part of the person is reproduced, and the lines of the other characters are skipped without being reproduced. That is, only the voice data and text data recorded in synchronization with the text data including the keyword specified by the user are reproduced, and the others are skipped. Or, conversely, it skips the dialogue of the selected character and reproduces it for other characters, that is, the voice data and text data recorded in synchronization with the text data including the keyword specified by the user are You may make it skip reading and reproduce | regenerate other audio | voice data and text data. 9A and 9B show specific examples. When the user wants to reproduce only the dialogue part of the character A by the user operation, if "limited playback control: character A valid, character B invalid, character C invalid" is selected on the menu screen,
The player reproduces only the portion having the text data belonging to "Character A" and skips the portion having the other text data. FIG. 9B is a timing chart of text display and audio output in this case. Thus, when the user plays the role of the character A, the user can hear only his / her speech in a short time, which is effective for remembering the speech. The keywords are A ", B", C "(see FIG. 8) indicating the dialogue of each character. In FIG. 9, for example, a keyword of" A "is designated by a user operation, and the voice data corresponding to the text data including the keyword is designated. Shows a case where is reproduced.

FIG. 13 shows a control flow. First, by setting the “limited playback control” mode by user operation,
The control device 16 causes each device to perform the following operation. The data reading device 12 pre-reads all text data on the optical disk 11 (S01). Data decoding device 1
Reference numeral 5 identifies the type of data read by the data reading device 12, and if text data exists (S02), stores the keyword text data in the text data in the text data storage area of the data storage device 14 (storage device). (S20) Further, the data decryption device 15 extracts the keyword group from the text data storage area, performs processing by the text data decryption function, and sends it to the text display device 17 (S04). The text display device 17 displays all keywords, here, all character names. And
A character to be reproduced (or skipped) is selected by a user operation and set as shown in the menu screen of FIG. 9A. When a "playback (skip) selection of an arbitrary keyword from the text menu" command (S21) on the text display device 17 is issued by this user operation, the text data existing in the stream is fetched (S0).
9) Then, the data is compared with the selected keyword (S22), and based on the result, reproduction or skipping is controlled (S23) (S24). The reproduction is continued until the next text data comes, and the text data is compared with the selected keyword again to perform control. Optical disk 11
The reproduction ends at the end (S12).

The above steps S21, S09, S22,
In S23 and S24, the control device 16 which has received, for example, the command “selection of reproduction of an arbitrary keyword from the text menu” by the user operation, sets the text data that matches the keyword specified in the text data storage area of the data storage device 14 Until the data is read, the data reading device 12 performs a high-speed search in the forward direction, and returns to the normal reproduction from the disc recording position at the time of the match. Next, when text data that does not match the specified keyword comes in, the above processing is repeated.

Next, in the case of (2-2), an arbitrary character name is selected in advance by the operation of the user, and only the speech of that person is output as speech, and the speech output of the other people's speech is prohibited. Let it. That is, only the audio data recorded in synchronization with the text data including the keyword specified by the user is output as audio, and the other audio data is prohibited. Conversely, voice output is prohibited only for the line of the selected character, and voice output is performed for other characters. FIG.
(A) and (b) show specific examples. When the user wants to hear the voice other than the voice of the character A by operating the user, and selects “voice output: invalid character A, valid character B, valid character C” on the menu screen, the player “character A” The voice output is prohibited, and only the portion where the characters "Character B" and "Character C" are present is output as voice. FIG. 10B is a timing chart of text display and audio output in this case.
It is. Thereby, when the user plays the role of the character A, the user outputs speech other than his / her own voice,
It is effective not only for practicing your own dialogue while looking at the text data, but also for quickly grasping the context of other roles.

FIG. 14 shows a control flow. First, by setting the “voice output control” mode by user operation,
The control device 16 causes each device to perform the following operation. The data reading device 12 pre-reads all text data on the optical disk 11 (S01). Data decoding device 1
Reference numeral 5 identifies the type of data read by the data reading device 12, and if text data exists (S02), stores the keyword text data in the text data in the text data storage area of the data storage device 14 (storage device). (S20) Further, the data decryption device 15 extracts the keyword group from the text data storage area, performs processing by the text data decryption function, and sends it to the text display device 17 (S04). The text display device 17 displays all keywords, here, all character names. And
Output sound (or mute) by user operation
The characters are selected and set as shown in the menu screen of FIG. The text display device 17 is operated by this user operation.
Is issued (S25), the text data existing in the stream is fetched (S09), and the data is compared with the selected keyword. Then, audio output or mute control is performed based on the result (S26) (S27). The reproduction is continued until the next text data comes, and the text data is compared with the selected keyword again to perform control.
The reproduction ends at the end of the optical disk 11 (S12).

The above steps S25, S09, S22,
In S26 and S27, the control device 16 that has received, for example, the command “selection of muting of any keyword from the text menu” by the user operation, sets the data storage device 14
When text data that matches the specified keyword comes into the text data storage area, the mute control is performed on the audio data decoding function of the data decoding device 15. Next, when text data that does not match the specified keyword comes in, the mute is released. The above processing is repeated.

Next, in the case of (2-3), an arbitrary character name is selected in advance by the operation of the user, and only the text data synchronized with the speech of that person is displayed. Is not displayed. In other words, text data including the keyword specified by the user is displayed, and text display is prohibited for other text data. Conversely, text display is prohibited only for the dialogue of the selected character, and text display is performed for other characters. FIGS. 11A and 11B show specific examples. If the user wants to display data other than the text data of the character A by the user operation, and selects “text data display: character A invalid, character B valid, character C valid” on the menu screen, the player can select “character”. A ”, the display of the text data of the dialogue part is prohibited,
"Character B" and "Character C" are displayed. The timing chart of text display and audio output in this case is shown in FIG.
1 (b). Thereby, when the user plays the role of the character A, the user can practice not to display the text data of his / her own dialogue and to speak simultaneously with the sound of the disc without looking at the text. It is effective for grasping quickly.

FIG. 15 shows a control flow. First, by setting the “text display control” mode by a user operation, the control device 16 causes each device to perform the following operation. The data reading device 12 pre-reads all text data on the optical disk 11 (S01). The data decoding device 15 discriminates the type of data read by the data reading device 12, and if text data exists (S0
2) The text data of the keyword contained therein is stored in the text data storage area of the data storage device 14 (storage device) (S20), and the data decoding device 15 extracts the keyword group from the text data storage area and decodes the text data. Processing is performed by the function, and the text display device 17
(S04). The text display device 17 displays all keywords, here, all character names. Then, a character whose text data is to be displayed (or not displayed) is selected by a user operation and set as shown in the menu screen of FIG. By this user operation, “selection (display or non-display) of text data of an arbitrary keyword from text menu” in text display device 17 is selected.
(S28) When the command is issued, the text data existing in the stream is fetched (S09), the data is compared with the selected keyword (S22), and the text data display or non-display control is performed based on the result. (S29) (S30). The reproduction is continued until the next text data comes, and the text data is compared with the selected keyword again to perform control. The reproduction ends at the end of the optical disk 11 (S12).

The above steps S28, S09, S22,
In S29 and S30, for example, the control device 16 that has received the “text data non-display selection of any keyword from text menu” command by the user operation matches the keyword specified in the text data storage area of the data storage device 14. When text data comes in,
Non-display control is performed on the text data decoding function of the data decoding device 15. Next, when text data that does not match the specified keyword comes in, it is displayed. The above processing is repeated.

Next, in the case of (2-4), an arbitrary character name is selected in advance by the operation of the user, the voice output of the speech of the person is performed, and the text data is displayed. Disable audio output and text display. That is, voice data recorded in synchronization with text data including a keyword specified by the user is output as voice and displayed as text data, and otherwise, voice output and displayed as text data are prohibited. Conversely, voice output and text data display are prohibited only for the line of the selected character, and voice output and text data display are performed for other characters. FIGS. 12A and 12B show specific examples. If the user wants to output voices and texts other than the character A by the user's operation, and selects “voice & text output: character A invalid, character B valid, character C valid” on the menu screen, the player will appear The voice and text output of the part having the dialogue of "person A" is prohibited, and the "character B" and "character C" are output with the voice and text. FIG. 12B is a timing chart of text display and audio output in this case. As a result, the user becomes the character A
In the case of performing the role of, the user can output speech and text in a speech other than the user's own voice, which is very effective for practicing in a form closer to the actual performance alone without any other role.

FIG. 16 shows a control flow. First, by setting the “voice & text output control” mode by a user operation, the control device 16 causes each device to perform the following operation. The data reading device 12 pre-reads all text data on the optical disk 11 (S01). The data decoding device 15 discriminates the type of data read by the data reading device 12, and if text data exists (S02), stores the keyword text data in the text data in the text data storage area of the data storage device 14 (storage device). (S20), and the data decryption device 15 extracts a keyword group from the text data storage area.
Processing is performed by the text data decryption function, and sent to the text display device 17 (S04). In the text display device 17,
All keywords, here all character names, are displayed. Then, a character who outputs voice and text data (or prohibits output) by user operation is selected and set as shown in the menu screen of FIG. When the command “Sound & text output (or prohibition) selection of an arbitrary keyword from the text menu” in the text display device 17 (S31) command is issued by the user operation,
Import text data existing in the stream (S
09), the data is compared with the selected keyword (S22), and voice / text output or prohibition control is performed based on the result (S32) (S33). The reproduction is continued until the next text data comes, and the text data is compared with the selected keyword again to perform control. The reproduction ends at the end of the optical disk 11 (S12).

The above steps S31, S09, S22,
In S32 and S33, the control device 16 which has received, for example, a command “voice and text prohibition selection of any keyword from the text menu” by the user operation matches the keyword specified in the text data storage area of the data storage device 14. When text data comes in, mute control is performed on the audio data decoding function of the data decoding device 15 and non-display control is performed on the text data decoding function of the data decoding device 15. Next, when text data that does not match the designated keyword comes in, the mute is released and the text data is displayed.
The above processing is repeated.

As described above, an entirely new function can be realized by controlling the contents while viewing the contents of the text data. This allows the user to select and specify the content of the voice and text data that he / she wants to hear,
The usage application of the optical disk reproducing device can be further expanded.

In the above (2-1) to (2-4),
Although the case where all the text data is prefetched in step S01 of FIGS. 13 to 16 has been described, a part of the text data of the optical disc 11 may be prefetched here. For example, when a plurality of scenes are recorded in the dialogue of the stage on the optical disc 11 and the characters differ for each scene, and each scene corresponds to each track, some text data, that is, text data for one track, Can also be controlled by When a plurality of stories are recorded on the optical disc 11, the control can be performed by text data for each story.

In the above description, (1-1) to (1-4), (2)
Although the eight control methods -1) to (2-4) have been described, the optical disc reproducing apparatus may have all eight control functions, or may have at least one of the eight control functions. You may make it do. As described in the conventional example, the control function of (1-1) is required in order to provide a function of playing the song from the middle of the song corresponding to the designated lyrics. ) Is preferably provided. By realizing more control functions, convenience and operability can be further improved.

[0066]

According to the present invention, the recording position of audio data corresponding to text data is specified, and reproduction is performed from the specified position, thereby selecting or searching for the first text data of a portion to be reproduced. Therefore, when the user enjoys or uses audio such as music in the optical disk reproducing device, the user does not need additional information such as management information such as a jump destination table in the optical disk. Can be searched.

Further, according to the present invention, the reproduction of at least one of the text data including or not including the specified keyword and the audio data corresponding to the text data is regulated so that the reproduction of the jump table or the like in the optical disc is performed. It is possible to expand the range of selection and specification of the reproduction content by the method of restricting the reproduction without requiring additional information such as management information. Regarding how to regulate regeneration,
Depending on the content that you want to play, such as skipping text data and the corresponding audio data, muting audio data, hiding text data, hiding text data and muting audio data, etc. By performing the regulation, desired reproduction contents can be realized. Furthermore, the reproduction content can be changed by changing the designation of the keyword. As described above, the range of selection and designation of the contents of the voice data and the text data desired by the user is widened, and the usage of the optical disc reproducing apparatus can be further widened.

As described above, by realizing various reproduction procedures, convenience and operability can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an optical disk reproducing device according to an embodiment of the present invention.

FIG. 2 is a structural diagram of audio data defined by the DVD audio standard.

FIG. 3 shows (1-1) to (1-4) of the embodiment of the present invention.
To explain the characteristics of the optical disk and the characteristics of the control method assumed in the above

FIG. 4 is a flowchart showing a control method (1-1) according to the embodiment of the present invention;

FIG. 5 is a flowchart showing a control method (1-2) according to the embodiment of the present invention;

FIG. 6 is a flowchart showing a control method according to the embodiment (1-3);

FIG. 7 is a flowchart showing a control method (1-4) according to the embodiment of the present invention;

FIG. 8 (2-1) to (2-4) of the embodiment of the present invention.
To explain the features of the optical disk assumed in

FIG. 9 is a diagram illustrating characteristics of the control method according to the embodiment (2-1) of the present invention.

FIG. 10 is a diagram illustrating characteristics of the control method according to the embodiment (2-2) of the present invention.

FIG. 11 is a diagram illustrating characteristics of the control method according to the embodiment of the present invention (2-3).

FIG. 12 is a view for explaining features of the control method of (2-4) of the embodiment of the present invention.

FIG. 13 is a flowchart illustrating a control method according to the embodiment (2-1) of the present invention;

FIG. 14 is a flowchart illustrating a control method according to the embodiment (2-2) of the present invention;

FIG. 15 is a flowchart showing a control method of (2-3) according to the embodiment of the present invention.

FIG. 16 is a flowchart showing a control method according to the embodiment (2-4) of the present invention;

FIG. 17 is a diagram for explaining a method of designating a song in the related art.

FIG. 18 is a schematic diagram of a configuration of a conventional optical disc reproducing apparatus.

FIG. 19 is a diagram for explaining the differences and features between the prior art and the present invention.

[Explanation of symbols]

 Reference Signs List 11 optical disk 12 data reading device 13 management information storage device 14 data storage device 15 data decoding device 16 control device 17 text display device 41 audio data 42 text data

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5D044 BC03 CC06 DE03 DE12 DE18 DE28 DE38 DE48 FG19 GK12 HL04 5D077 AA23 BB03 CA02 CB09 DD01 HC18 5D110 AA15 AA25 AA27 BC02 DA02 DB09 DC03 FA08

Claims (9)

[Claims] 1. An optical disk on which data having a structure in which text data is arranged in an interleaved manner in audio data is recorded, the audio data is output from a speaker, and the text data is displayed on a text display device for reproduction. An optical disk reproduction control method for extracting desired text data, specifying a recording position of audio data corresponding to the extracted text data recording position, and performing reproduction from the specified position. Optical disk reproduction control method. 2. On an optical disk on which data having a structure in which text data is arranged in an interleaved manner in audio data is recorded, the audio data is output from a speaker, and the text data is displayed on a text display device for reproduction. An optical disk reproduction control method to be performed, wherein all or a part of text data in the optical disk is pre-read, and the pre-read all text data is displayed on the text display device, and from among the displayed all text data, An optical disc reproduction control method characterized by specifying a recording position of audio data corresponding to one selected text data and starting reproduction from the specified position. 3. An optical disk on which data having a structure in which text data is arranged in an interleaved manner in audio data is recorded, the audio data is output from a speaker, and the text data is displayed on a text display device for reproduction. An optical disc playback control method for performing, when a playback forward search or a playback reverse search is specified during playback, a skip search is performed to a recording position of the next text data existing in the specified search direction,
An optical disc reproduction control method characterized by specifying a recording position of audio data corresponding to the searched text data and restarting reproduction from the specified position. 4. On an optical disk on which data having a structure in which text data is arranged in an interleaved manner in the audio data is recorded, the audio data is output from a speaker, and the text data is displayed on a text display device for reproduction. An optical disc reproduction control method for performing a search for skipping to a recording position of the next text data when a continuous search is designated during reproduction, and recording audio data corresponding to the searched text data. An optical disc reproduction control method, which repeats a process of specifying a position and performing reproduction from the specified position for a predetermined time. 5. An optical disk on which data having a structure in which text data is arranged in an interleaved manner in audio data is recorded, the audio data is output from a speaker, and the text data is displayed on a text display device for reproduction. An optical disc playback control method to be performed, wherein the playback of the text data and the audio data is performed by restricting the playback of at least one of the text data including or not including a specified keyword and the audio data corresponding to the text data. Optical disk reproduction control method. 6. An optical disk on which data having a structure in which text data is arranged in an interleaved manner in audio data is recorded, the audio data is output from a speaker, and the text data is displayed on a text display device for reproduction. An optical disc reproduction control method for pre-reading all or a part of text data in the optical disc, displaying a keyword included in the pre-read all text data on the text display device, and displaying the text data and the audio data. Reproducing the text data by skipping the text data including or not including the specified keyword from all the displayed keywords and the audio data corresponding to the text data. 7. An optical disk on which data having a structure in which text data is arranged in an interleaved manner in audio data is recorded, the audio data is output from a speaker, and the text data is displayed on a text display device for reproduction. An optical disc reproduction control method for pre-reading all or a part of text data in the optical disc, displaying a keyword included in the pre-read all text data on the text display device, and displaying the text data and the audio data. Playing back the audio data corresponding to text data including or not including the specified keyword among all the displayed keywords. 8. An optical disk on which data having a structure in which text data is arranged in an interleaved manner in the audio data is output from a speaker, and the text data is displayed on a text display device for reproduction. An optical disc reproduction control method for pre-reading all or a part of text data in the optical disc, displaying a keyword included in the pre-read all text data on the text display device, and displaying the text data and the audio data. The method of claim 1, further comprising the step of hiding the text data including or not including the specified keyword from all the displayed keywords. 9. An optical disk on which data having a structure in which text data is arranged in an interleaved manner in audio data is recorded, the audio data is output from a speaker, and the text data is displayed on a text display device for reproduction. An optical disc reproduction control method for pre-reading all or a part of text data in the optical disc, displaying a keyword included in the pre-read all text data on the text display device, and displaying the text data and the audio data. Reproducing the text data that includes or does not include the specified keyword from among the displayed keywords, and muting the audio data corresponding to the non-displayed text data. Optical disk playback control method.