JP4031918B2 - Playback device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a reproducing apparatus for reproducing a recording medium for recording video information and audio information such as a DVD (Digita1 Versati1e Disc).
[0002]
[Prior art]
In a DVD disc on which information such as video and audio is recorded, information such as audio, subtitles, and menus is recorded on separate tracks. Up to 8 audio tracks can be recorded, and subtitles (subtitles) that are sub-pictures can be recorded up to 32 tracks.
[0003]
Sub-picture menus and subtitles are recorded on the tracks for each language of the displayed characters, and audio is also recorded for each language. For example, when the content recorded on a DVD is a movie, audio is recorded on a track for each language such as English, Japanese, French. The user selects a favorite language from these languages, and the optical disc apparatus reproduces the sound of the selected language. Subtitles are also recorded for each language such as English, Japanese, French, Spanish, and the optical disc apparatus can display subtitles in the selected language or hide subtitles. Since menus are also recorded for each language, it is possible to display a menu described in characters of the selected language.
[0004]
There are two methods for selecting the language type of audio, subtitle, and menu by selecting a language at the start of reproduction and setting the language in advance, and selecting and selecting a language during reproduction.
[0005]
In the former method, there is usually a mode for initial setting of the playback device. In this mode, the audio language setting, subtitle language setting, menu language setting is performed, and the playback device stores the setting state. deep. When a DVD is reproduced, it is determined whether or not each set language is recorded on the disc. If the language is recorded, the language is reproduced. For example, consider the case where the audio language is set to “English”, the subtitle language is set to “Japanese”, and the menu language is set to “Japanese” in the initial setting of the optical disc playback apparatus. English audio is recorded on audio track 1, Japanese audio information is recorded on audio track 2, Japanese subtitles are recorded on subtitle track 1, and English subtitles are recorded on subtitle track 2. When the DVD disc on which the English menu is recorded is played, the playback device plays the “English” audio track 1 and the “Japanese” subtitle track 1 as set in the initial setting. To display the "Japanese" menu. In a playback apparatus that plays back a DVD disc recorded in this way, the language of each of audio, subtitles, and menus can be set in advance, and playback is performed accordingly.
[0006]
In the case of the latter method of switching the language, the audio track to be reproduced is switched by operating the audio switching button during reproduction of the DVD disc, and the audio language to be output is switched. Also, by operating the subtitle switching button, the subtitle track is switched and the subtitle language is switched.
[0007]
[Problems to be solved by the invention]
In the case of the former method, depending on the playback device, the user must set the audio language, subtitle language, and menu language on the display screen of each initial setting, so there are many language settings, and troublesome operations are required. Necessary. Even in the latter method, since the user has to switch the voice language, the subtitle language, and the menu language with the respective switching buttons, many switching operations are required, and cumbersome operations are required.
[0008]
Usually, when a DVD disc whose original language is a foreign language is played back by the optical disc playback apparatus, the subtitle and the language are mostly selected by the first setting method or the second setting method described below. For example, when a Japanese player plays a DVD disc on which a movie whose original sound is English is played by an optical disc playback device, the first setting method sets the language display of the subtitles to be hidden, By setting the audio language to be output to Japanese, you can watch movies while listening to Japanese audio. In the second setting method, the audio language to be output is set to the original English and the subtitle language display is set to Japanese, so that the user can watch the movie while watching the Japanese subtitle display.
[0009]
In the first setting method described above, the sound language to be output is set to Japanese, so that the movie is recognized while recognizing the words of the movie, so that the display of subtitles is unnecessary. In the second setting method, the language of the subtitles to be displayed is set to Japanese, and the movie is recognized while recognizing the words of the movie by reading the displayed subtitles, so the audio language remains the original English Good. In the conventional optical disc playback apparatus, the menu display setting, the audio language setting, and the subtitle display setting must be respectively performed in both the first setting method and the second setting method described above, and the setting work is performed. troublesome.
[0010]
In order to solve the above-described problems, an object of the present invention is to provide a playback apparatus that can more easily set the language of audio, subtitles, and menus.
[0011]
[Means for Solving the Problems]
In order to solve the above problems, the present invention demodulates and reproduces video information recorded in a recording medium, audio information recorded in one or more languages, subtitle information, and menu information in a playback device. Having a reproducing means. The accepting unit accepts selection of a type of language to be reproduced for any of the audio information, the caption information, and the menu information. The execution means determines and determines whether or not to reproduce each of the audio information, the caption information, and the menu information according to the language type accepted by the accepting means, and the language type for reproduction. .
[0012]
According to the present invention, it is not necessary to set language types of the audio information, the caption information, and the menu information, and the setting is simplified.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below. In the present embodiment, an example of a case where the recording medium is a DVD will be described as an example, and an optical disk reproducing apparatus that reproduces recorded information on the DVD will be described. FIG. 1 shows a configuration diagram of an optical disk reproducing apparatus.
[0014]
In the optical disc reproducing apparatus according to the present embodiment, in the initial setting, one of one or more recorded audio languages is selected, the selected audio language is reproduced, and the subtitles are not displayed. There are provided a subtitle language selection setting mode for selecting one or two or more subtitle languages, reproducing the selected subtitle language, and reproducing the original audio, and an individual setting mode for setting the language of the audio, subtitle, and menu, respectively. After selecting one of the modes, the language is selected and set, so that the optical disc is reproduced according to the set contents.
[0015]
In FIG. 1, a DVD disk 1 is loaded in an optical disk reproducing apparatus. When the system controller 17 receives a language setting instruction or the like from the user in the operation unit 18, the system controller 17 stores the setting content instructed in the setting memory 20, and performs reproduction in a language according to the setting content. The operation unit 18 includes various setting buttons such as an initial setting button for instructing initial setting and a button for accepting language selection. In addition, by displaying a menu screen on the display unit 19, a setting instruction can be received from the operation unit 18 in accordance with the menu screen.
[0016]
When the system controller 17 receives an instruction to start playback of the DVD disk 1, the system controller 17 sends an instruction to the servo control circuit 3. Upon receiving the command, the servo control circuit 3 controls the spindle motor 2 to rotate the DVD disk 1. The optical pickup 5 irradiates the DVD disk 1 with laser light, receives the reflected light, and converts it into an electrical signal. The electrical signal is amplified by the preamplifier 6 and input to the servo control circuit 3 and the read channel 7. The servo control circuit 3 controls the rotational speed of the disk in the spindle motor 2, controls the position of the optical pickup in the slide motor 4, and controls focus and tracking in the optical pickup 5. In the read channel circuit 7, the amplitude of the reproduction signal (RF signal) is made constant, synchronous data is generated, and the reproduction signal and synchronous data are sent to a demodulation / ECC (Error Correction Code) circuit 8. The demodulation / ECC circuit 8 performs data demodulation and error correction processing from the reproduction signal, and stores the demodulated data in the buffer memory 15. The data stored in the buffer memory 15 is sent to the descrambling circuit 9 via the demodulation / ECC circuit 8, descrambling processing based on the DVD standard is executed, and sent to the MPEG2 video decoder 10. The MPEG2 video decoder 10 separates main video data, sub-video data, and audio data by analyzing the stream of transmitted data. Since the main video data and the sub video data are compressed, they are output to the video D / A conversion circuit 11 after being decompressed by the MPEG2 video decoder 10. The MPEG2 video decoder 10 temporarily stores data in the memory 16 for frame processing necessary at that time. The separated audio data is transmitted to the audio decoder 13. The audio decoder 13 demodulates the audio data and outputs it to the audio D / A conversion circuit 14. The video signal input to the video D / A conversion circuit 11 is converted into an analog video signal and output. The audio signal input to the audio D / A conversion circuit 14 is converted into an analog audio signal and output.
[0017]
Next, the contents of information stored in the DVD disc 1 will be described with reference to FIG. As shown in FIG. 2, the DVD disc 1 has main video information recorded on a video track, audio information recorded on an audio track, and sub-video information such as a subtitle recorded on a subtitle track. The audio information can be recorded up to 8 tracks, and the sub-video information (subtitle) can be recorded up to 32 tracks. FIG. 2 shows the contents of 4 tracks each. In the audio track, data is recorded in a predetermined language using a predetermined compression method. The subtitle track is also recorded with data in a predetermined language. The system controller 17 can determine the language of each track by reading the data indicating the language type described in the audio track and the subtitle track.
[0018]
The audio language, subtitle language, and menu language setting processing in the initial setting executed by the system controller 17 will be described using the flowchart of the initial setting processing shown in FIG. An example of an initial setting screen displayed on the display unit 19 in the initial setting is shown in FIG. In FIG. 4, a plurality of selection icons 11 to 45 on the initial screen are displayed. The operation unit 18 can accept an instruction to select each icon shown in FIG.
[0019]
When the DVD disk 1 is loaded or when the user presses the initial setting button on the operation unit 18, the optical disc playback apparatus starts the processing flow in the initial setting shown in FIG. An initial setting screen is displayed, and the system controller 17 performs initial setting of the audio language, initial setting of the subtitle language, and initial setting of the menu language according to the operation of the operation unit 18 by the user. When the initial setting process is started, the system controller 17 displays the audio language priority mode (icon 11), the subtitle language priority mode (icon 12) and the individual setting mode (icon 13) as shown in FIG. Is selected by the operation unit 18.
[0020]
Then, instruction received to see if clear language set (ST1). In the case of language setting, it is confirmed whether an instruction for the individual setting mode (icon 13) is accepted (ST2). When an instruction for individual setting is received, each language setting is received and set according to the user's preference, such as an audio language, a caption language, and a menu language. In this case, as shown in FIG. 4, the system controller 17 determines each of the audio language, the subtitle language, and the menu language recorded on the DVD disc 1 and displays them on the display unit 19 as options. When the system controller 17 receives a voice language selection instruction (icons 22 to 25) via the operation unit 18, the system controller 17 sets the received voice language in the setting memory 20 (ST3). In addition, when a subtitle language selection instruction (icons 32 to 35) is received by the operation unit 18, the system controller 17 sets the received subtitle language in the setting memory 20 (ST4). When the menu language selection instruction (icons 42 to 45) is received by the operation unit 18, the system controller 17 sets the received menu language in the setting memory 20 (ST5). When it is not an individual setting in ST2, it is confirmed whether or not the voice language priority setting mode (icon 11) is set (ST7). When the voice language priority instruction is accepted, the selection of the voice language (icons 22 to 25) is accepted from the user, the accepted language is set (ST8), and the subtitle language is set to “none”, that is, not displayed (ST9). The menu language is set to the language set in the voice language (ST 10 ).
[0021]
In ST7, when it is not the audio language priority setting, it is confirmed whether or not the subtitle language priority setting mode (icon 12) is set (ST11). When a subtitle language priority setting instruction is received, selection of subtitle language (icons 32 to 35) is received from the user, the accepted language is set (ST12), and the audio language is set to default, that is, the audio track 1 is reproduced. Setting is made (ST13), the menu language is set to the language set in the subtitle language (ST14), and the initial setting mode is terminated (ST15).
[0022]
The initial setting is set by the above processing.
[0023]
Next, upon receiving an optical disc playback start instruction via the operation unit 18, the system controller 17 sends the subtitle language to the MPEG2 video decoder 10 in accordance with the audio language, subtitle language, and menu language settings set in the setting memory 20. Configuration and subtitle tracks to determine matching, and controls so as to decode the sub-title track matching. If it is set to no subtitle language, subtitle track is controlled not to decode. Similarly, the audio decoder 13 is controlled to determine an audio track that matches the audio language setting and to decode the audio track that matches. As for the menu language, since data is recorded for each language in the menu data recording area, the servo controller circuit reads out the area where the system controller 17 reads the same data as the menu language setting when the menu is displayed. 3, the data is read out, the demodulation / error correction processing is performed, and the menu video having the same menu language setting is output from the video D / A conversion circuit 11 through the MPEG2 video decoder 10.
[0024]
According to the present embodiment, when a DVD disc whose original language is a foreign language is played by the optical disc playback apparatus, for example, a Japanese movie is a foreign movie, for example, the original voice is English and Japanese voice is also If you want to watch a movie by playing a DVD disc with a movie recorded on the audio track, set the audio language to Japanese in the audio language priority setting mode, and the output audio language will be Japanese. The subtitle language display is set to non-display, and the menu screen language is set to Japanese. This makes it possible to watch movies while listening to Japanese audio. If the subtitle language is set to Japanese in the subtitle language priority setting mode, the subtitle language display is set to Japanese display, the output audio language is set to the original English, and the menu screen language is set to Set to Japanese. This makes it possible to watch movies with Japanese subtitles while listening to English audio.
[0025]
In the optical disc playback apparatus of the present embodiment, the menu display language setting, the audio language setting, and the subtitle display language setting can be automatically performed only by setting the audio language or the subtitle language. Easy to set up and operate.
[0026]
Next, a second embodiment will be described.
[0027]
In the second embodiment, a case will be described in which selection of a language used by a user every day is accepted and audio, subtitles, and menu languages are set. For example, if the language on a daily use of the user is a Japanese detects the language that has been recorded in the audio track, the audio language if it is recorded by the Japanese, to play the sound by the Japanese language, Do not display subtitles. Also, if the recorded audio language does not have Japanese, the language recorded in the subtitle track is determined, the subtitle track recorded in Japanese is detected, the track is output, Set to output original audio.
[0028]
The second embodiment also has the same configuration as the configuration shown in FIG. 1 in the first embodiment. In this embodiment, the language is set when the playback apparatus is used for the first time. In this case, an initial setting screen showing a plurality of language types is displayed on the display unit 19, and the language is initially set in the system controller 17 in accordance with the selection operation of the operation unit 18 by the user. The set language is set in the setting memory 20 shown in FIG.
[0029]
Next, processing during optical disc reproduction will be described with reference to FIG. FIG. 5 shows a processing flow of the system controller 17 during reproduction. When the operation unit 18 accepts an optical disc playback start instruction, the system controller 17 determines the audio track that matches the audio language setting to the audio decoder 13 according to the language setting set in the setting memory 20 ( In step S501, control is performed so as to decode the matching audio track (S502). If there is an audio track that matches the set language, subtitle information is not reproduced (S503). If there is no audio track that matches the set language is, MPEG2 the video decoder 10, to determine which subtitle tracks that match the settings of the set language (S504), so as to decode the sub-title track matching controls on (S505), if there is no sub-title tracks matching is controlled not to decode the sub-title track (S506). Further, the voice information is output as the original voice (S507). As for the menu language, since data is recorded for each language in the menu data recording area, the system controller 17 servos to read the area recorded in the same language as the set language when the menu is displayed. The control circuit 3 is controlled to read data, perform demodulation / error correction processing, and output the same menu video as the set language from the video D / A conversion circuit 11 through the MPEG2 video decoder 10 (S508). .
[0030]
According to the present embodiment, by setting the language setting at the first use, there is no need to set the language when playing back the optical disc, and the operation is simplified.
[0031]
【The invention's effect】
According to the present invention, the language setting of the initial setting of the playback device can be performed more easily.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of an optical disc reproducing apparatus according to an embodiment of the present invention.
FIG. 2 is an explanatory diagram showing a logical configuration of DVD information.
FIG. 3 is a flowchart of language setting of the optical disc playback apparatus in the first embodiment of the present invention.
FIG. 4 is an explanatory diagram showing a display example of a language setting setting screen according to the embodiment of the present invention.
FIG. 5 is a language setting flowchart of the optical disc playback apparatus in the second embodiment of the present invention;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... DVD disk, 2 ... Spindle motor, 3 ... Servo control circuit, 4 ... Slide motor, 5 ... Optical pick-up, 6 ... Preamplifier, 7 ... Read channel circuit, 8 ... Demodulation / ECC circuit, 9 ... Descramble circuit, 10 ... MPEG2 video decoder, 11 ... Video D / A conversion circuit, 12 ... CD signal processing, 13 ... Audio decoder, 14 ... Audio D / A conversion circuit, 15 ... Buffer memory, 16 ... Memory, 17 ... System controller, 18 ... Operation unit, 19... Display unit.

Claims (3)

In a playback apparatus having playback means for playing back video information recorded in a recording medium, audio information recorded in one or more languages, subtitle information, and menu information,
A setting mode receiving means for receiving selection of a setting mode of a sound language priority setting mode for setting the priority of the type of the sound language, and a subtitle language priority setting mode for setting the priority of the type of the subtitle language;
When the setting mode accepting unit accepts the selection of the audio priority setting mode, the audio language accepting unit accepts the selection of the type of the audio language;
A subtitle language accepting unit that accepts a selection of the type of the subtitle language when the setting mode accepting unit accepts the selection of the subtitle language priority setting mode;
In accordance with the setting mode received by the setting mode receiving unit, the necessity of the subtitle information to be played back by the playback unit is set, and according to the selection of the type of the audio language received by the spoken language receiving unit, A voice priority setting means for setting a language of the audio information reproduced by the reproduction means and a language of the menu information;
In accordance with the setting mode received by the setting mode receiving unit, the language of the audio information to be reproduced by the reproducing unit is set, and according to the selection of the type of the subtitle language received by the subtitle language receiving unit, Subtitle priority setting means for setting the language of the subtitle information to be reproduced by the reproduction means and the language of the menu information;
A playback apparatus comprising: The playback device according to claim 1,
The audio priority setting unit sets the language of the audio information and the menu information reproduced by the reproduction unit to the same language as the audio language received by the audio language reception unit, and the reproduction unit performs the caption information Is set so as not to be played back. The playback device according to claim 1,
The subtitle priority setting means sets the language of the subtitle information and the menu information reproduced by the reproducing means to the same language as the subtitle language accepted by the subtitle language accepting means, and the pre-reproduction means reproduces it. A playback apparatus, wherein a language of the voice information is set to a voice language set as a default voice information .

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