JP2003078884A - Disk reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk reproducing device the operability of which can be enhanced by decreasing the number of operation times. SOLUTION: When a user makes an operation of selecting a language of voice, a system controller 60 controls reproduction of voice in a language designated by the user. Further, the system controller 60 determines whether or not the language of voice designated by the user is a mother language of the user on the basis of data stored in a RAM 62. When the designated language is the mother language of the user, the system controller 60 sets a caption to a non-display state. When the designated language is not the mother language of the user, the system controller 60 sets a caption to a display state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc reproducing apparatus for reproducing a movie recorded on a digital versatile disc (DVD) or the like.

[0002]

2. Description of the Related Art In recent years, DVD has been used as a disk type recording medium.
Is widespread. This DVD has a diameter of 12 cm and a thickness of 1.2 mm, and is a CD (compact disc).
Despite having the same shape as the above, by increasing the recording density, a storage capacity of 4.7 GB in a single layer and 8.5 GB in a double layer is realized.

The DVD uses image data compression technology such as MPEG2 and audio data compression technology.
Various types of data are stored in a mixed manner, and control data for realizing various functions are also stored. Considering the case of recording a movie on a DVD, by storing audio data and subtitle data corresponding to a plurality of languages in addition to the video data, audio output and subtitle display in the language selected by the user are performed. It becomes possible. For example, if a Japanese user wants to watch a movie made in an English-speaking country, (1) change the voice to English and display subtitles in Japanese, (2) change the voice to Japanese. It is possible to set the language of the audio and the display state of the subtitle to a desired combination, such as hiding the subtitle, (3) setting the audio to English to hide the subtitle.

[0004]

By the way, in the conventional disc reproducing apparatus, since the setting relating to the sound and the setting relating to the subtitle are separately performed, the following inconveniences occur. For example, if a Japanese user is playing a movie, etc. with the setting "audio is English, subtitle is Japanese", and the sound is switched to Japanese (user's native language) during playback. think of. In this case, a user who does not need to display subtitles needs to perform an operation of changing the subtitle setting to “non-display state” in addition to the operation of switching the audio, which increases the number of operations, resulting in operability. There was a problem of being bad. In addition, the same is true when the audio and subtitles are set before the start of playback of a movie or the like, and since it is necessary to set the audio-related settings and the subtitle-related settings separately, the number of operations increases and the operability is poor was there.

The present invention has been made in view of the above points, and an object thereof is to provide a disc reproducing apparatus capable of improving operability by reducing the number of operations.

[0006]

In order to solve the above-mentioned problems, the disc reproducing apparatus of the present invention reproduces an image by reading the information recorded on the disc type recording medium by the image reproducing means. The audio and subtitles corresponding to the video to be reproduced are reproduced by the auxiliary reproducing means. Then, when the sound of the specific language is selected, the audio / caption setting means instructs the auxiliary reproduction means to set the content of the selected sound and to set the subtitle to the non-display state. . When the audio of a specific language is selected, the subtitles are automatically set to the non-display state, so the operation to switch the subtitles to the non-display state is unnecessary, and the number of operations can be reduced to improve operability. You can

Further, it is desirable that the above-mentioned specific language is set as the user's native language and the subtitles are set to the non-display state while the audio of the native language is being reproduced by the auxiliary reproducing means. In general, the user often wants to set the subtitles to the non-display state when selecting the sound of the native language. Therefore, when the sound is reproduced in the native language, the subtitles are hidden so that the number of operations by the user can be reduced and the operability can be improved.

Further, operating means for accepting a specific operation for instructing the setting of the voice and subtitle corresponding to the mother tongue is further provided, and when the specific operation is performed by using this operating means, the voice / caption setting means is operated. , It is desirable to set the audio settings for the native language and hide subtitles. With this, the user can select whether or not to automatically perform the process of setting the subtitles to the non-display state when the sound of the native language is set, in accordance with the user's intention.

Further, it is desirable to further include a native language registration means for registering a language corresponding to the native language according to the operation of the user. As a result, the user can freely register the native language. It is desirable that the above-mentioned audio / caption setting means preferentially sets the audio and caption corresponding to the native language when the video reproduction by the video reproduction means is started. As a result, if the content of the audio and subtitles for a given period is forcibly set, the native language setting is automatically performed after the forcible setting of the audio and subtitles is released, and the audio etc. When there is no compulsory setting for the content of, the native language setting is automatically performed from the start of reproduction, so that no complicated operation is required and the operability can be further improved.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A DVD reproducing apparatus according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a configuration of a DVD reproducing apparatus of an embodiment to which the present invention is applied. The DVD reproducing apparatus 100 shown in FIG. 1 includes a spindle motor 12 and an optical pickup 1.
4, feed motor 16, servo controller 18, RF amplifier 2
2, digital signal processor 24, four buffer RAMs
26, 34, 38, 42, stream separation unit 30, audio decoder 32, video decoder 36, sub-picture decoder 40, video processor 44, video encoder 46, display device 47, digital-analog (D / A) converter 48, The speaker 49, the operation unit 58, the system controller 60, and the RAM 62 are included.

The spindle motor 12 rotates the DVD 10 at a predetermined speed. The optical pickup 14 is the DVD 1
The data recorded in 0 is detected. For example, a semiconductor laser and a photodiode are built in. The feed motor 16 moves the optical pickup 14 in the radial direction of the DVD 10.

The servo control section 18 is responsive to an instruction from the system controller 60 to drive the spindle motor 12 described above.
The focus position of the semiconductor laser is moved vertically and horizontally with respect to the recording surface of the DVD 10 by driving the feed motor 16 and moving an objective lens (not shown) built in the optical pickup 14. Further, the servo control unit 18 controls various servos (focus servo, tracking servo, rotation servo) necessary for reading data from the DVD 10.

The RF amplifier 22 amplifies the electric signal output from the photodiode incorporated in the optical pickup 14. The digital signal processing unit 24 performs signal demodulation processing (8-16 demodulation processing) and error correction processing according to the data format of the DVD 10 on the signal output from the RF amplifier 22, after converting the digital data, RA
Store in M26. Then, the digital signal processing unit 24
RAM in response to an instruction from the system controller 60.
The control data is extracted from 26 and output to the system controller 60, and the VOBU (video object unit) is extracted and output to the stream separation unit 30.

FIG. 2 is a diagram showing a data structure of VOBU. As shown in FIG. 2, in the VOBU, NV_PCK (navigation pack) that defines the reproduction order of data, A_PCK (audio pack) as audio data for reproducing audio, and video for reproducing video. V_PCK (video pack) as video data and SP_PCK (sub-picture pack) as sub-picture data for reproducing subtitles and the like are mixed and included.

The stream separation unit 30 receives NV_PCK, A included in the VOBU output from the digital signal processing unit 24 in response to an instruction from the system controller 60.
_PCK, V_PCK, and SP_PCK are separated, distributed to each decoder, and output. Specifically, A
_PCK is output to the audio decoder 32 and V_P
CK is output to the video decoder 36, SP_PCK is output to the sub-picture decoder 40, and NV_PCK is transferred to the system controller 60.

The audio decoder 32 performs a predetermined decoding process on A_PCK output from the stream separation section 30 and outputs audio data. The video decoder 36 performs a predetermined decoding process on V_PCK output from the stream separation unit 30 and outputs video data. The sub-picture decoder 40 performs a predetermined decoding process on SP_PCK output from the stream separation unit 30 and outputs sub-picture data.

In response to an instruction from the system controller 60, the video processor 44 generates image data by synthesizing the video data output from the video decoder 36 and the sub-picture data output from the sub-picture decoder 40, and the video encoder Output to 46.

The video encoder 46 converts the image data output from the video processor 44 into an image signal for display. An image is displayed by outputting this image signal to the display device 47. The D / A converter 48 converts the audio data output from the audio decoder 32 into an analog audio signal. By outputting this audio signal to the speaker 49, the audio sound is reproduced.

The operation section 58 is provided with various operation keys such as a reproduction key, a stop key, a pause key, left / right and up / down cursor keys, and a setting key for confirming the item at the cursor position on the display screen. A signal corresponding to the operation state of is output to the system controller 60. This operation part 5
The system controller 60, which uses 8 to issue various operation instructions such as switching of voice language settings, outputs various servo commands to the servo control unit 18 and issues image generation instructions in response to user operation instructions. It controls all functional blocks such as outputting to the video processor 44. Specifically, the system controller 60 controls the control data included in the data output from the digital signal processing unit 24,
By receiving the NV_PCK output from the stream separation unit 30 and executing the navigation commands included in these, the various servo commands are output to the servo control unit 18, and an image generation instruction according to the user's operation instruction is issued. Is output to the video processor 44, and various controls necessary for the reproduction operation are performed.

Further, the system controller 60, when a user designates one language to be used as a mother tongue (for example, "Japanese" for a Japanese user), the designated mother tongue is RAM 62. To memorize. RAM6
Reference numeral 2 denotes a non-volatile memory, which retains the stored data as it is even when the power of the DVD reproducing apparatus 100 is turned off.

The entire DVD reproducing apparatus 100 described above serves as video reproducing means and auxiliary reproducing means, the system controller 60 serves as audio / caption setting means, the operating section 58 serves as operating means, and the system controller 60 and the RAM 62 serve as native language registering means. It corresponds to each.

Next, the operation of the DVD reproducing apparatus 100 will be described. (A) Operation when registering a mother tongue FIG. 3 is a flowchart showing an operation procedure of the DVD reproducing device 100 when registering a language to be a mother tongue.

When the user gives an operation instruction to register a native language, the system controller 60 displays a predetermined native language registration screen on the display device 47 (step 100). Specifically, the system controller 6
0 generates image data for displaying the native language registration screen and outputs it to the video processor 44. The image data is converted into an image signal for display by the video encoder 46 and output to the display device 47, so that the native language registration screen is displayed.

FIG. 4 is a diagram showing a specific example of the native language registration screen. As shown in FIG. 4, a plurality of languages such as Japanese, English, French, ... Are displayed as a list. Then, by using the operation unit 58, the position of reverse display (represented by hatching in the drawing) is moved up and down to select a language, and then a predetermined key (for example, “enter key”) is pressed, A desired language can be registered as a native language.

When the native language registration screen is displayed, the system controller 60 determines whether or not one language to be registered as the native language has been designated (step 101). While the native language is not specified, a negative judgment is made, and step 101
The determination of is repeated. When one language is designated, an affirmative decision is made in step 101, and the system controller 60 stores the language designated by the user in the RAM 62 as the mother tongue (step 102).

(B) Operation at Start of Playback FIG. 5 shows D when starting playback of the loaded DVD 10.
7 is a flowchart showing an operation procedure of the VD playback device 100. The system controller 60 controls the DVD 10 to be played back.
It is determined whether or not is loaded (step 200), and if it is loaded, an affirmative determination is made, and reproduction of the video or the like recorded on the DVD 10 is started (step 201).

Next, the system controller 60 determines whether or not the DVD 10 includes a compulsory setting relating to the reproduction state of audio and subtitles (step 202). Specifically, depending on the DVD, the audio language and the display state of subtitles may be forcibly prescribed in advance for a predetermined reproduction section. The system controller 60 determines whether or not the compulsory setting exists by checking whether or not the data indicating such a regulation is recorded.

If there is a compulsory setting relating to voice, etc., an affirmative decision is made in step 202, and the system controller 60 continues a predetermined reproduction operation (for example, reproduction of the opening screen) and In parallel, it is determined whether the forced setting has been canceled (step 203). While the forced setting is not released, a negative determination is made and the determination process of step 203 is repeated.

When the forced setting is released (Yes at step 203) or when the forced setting does not exist (No at step 202), the system controller 60 determines that the audio and subtitle reproduction states are It is determined whether or not "mother tongue priority" is set (step 20).
4).

FIG. 6 is a diagram showing a display example of a screen for setting the reproduction state of audio and subtitles. In the present embodiment, when a predetermined operation key provided in the operation unit 58 is pressed, a predetermined setting screen as shown in FIG. 6A is displayed, and the user can make a voice or voice according to his or her intention. It is possible to set the subtitle playback status. The setting relating to the reproduction state of the sound or the like is performed, for example, at the start of reproduction. It should be noted that this setting can be performed at any timing such as during reproduction.

Further, FIG. 6B shows an example of options that can be designated as a reproduction state regarding audio and subtitles. As shown in FIG. 6B, in the present embodiment, English,
In addition to multiple languages such as Japanese, French, ...
It is possible to specify the option of "mother tongue priority". When "Mother tongue priority" is specified, the process of automatically setting the subtitles to non-display state is performed when the mother tongue sound is set, and "Mother tongue priority" is set.
When other than is specified, the audio and subtitles are reproduced in the specified languages.

In FIG. 6A, "native language priority" is set for each of the reproduction states of audio and subtitles. In the present embodiment, when "mother tongue priority" is set for either the audio or subtitle, the other is automatically set to "mother tongue priority". This allows
In the case of setting "mother tongue priority", only one of the voice and the subtitle needs to be designated, so that the number of operations can be reduced. The operation of designating "priority to mother tongue" corresponds to the specific operation.

When the reproduction state of the voice or the like is set to "mother tongue priority", an affirmative decision is made in step 204, and the system controller 60 controls to reproduce the voice in the mother tongue (step 205). . Further, the system controller 60 sets the subtitles to the non-display state (step 206).

When the processing shown in step 206 is performed, or when the reproduction state of the sound or the like is not set to "mother tongue priority" (negative determination in step 204), the system controller 60 is recorded on the DVD 10. A predetermined reproduction operation for reading out information and reproducing video and audio is continued (step 207).

After that, the system controller 60 sets D
It is determined whether or not the reproduction of the VD 10 is completed (step 208). While the reproduction is not completed, a negative determination is made in step 208, and the system controller 60 returns to step 207 and continues the predetermined reproduction operation. When the reproduction is completed, an affirmative decision is made in step 208, and the series of reproduction operations is completed.

As described above, in the present embodiment, when the "mother tongue priority" is set, the sound and subtitles corresponding to the mother tongue are preferentially set at the start of reproduction. When the content of the audio and subtitles for a predetermined period is forcibly set, the native language setting is automatically performed after the forcible setting of the audio and subtitles is canceled, and the audio etc. If there is no compulsory setting for the content, the native language setting is automatically performed from the start of reproduction, so that no complicated operation is required and the operability can be further improved.

(C) Switching language settings such as voice during playback
FIG. 7 shows the operation when switching language settings such as voice during playback.
7 is a flowchart showing an operation procedure of the VD playback device 100. The system controller 60 determines whether or not an operation (switch operation) for switching the voice language has been performed (step 300). A negative determination is made while the voice switching operation is not performed, and the determination of step 300 is repeated.

When a voice switching operation is performed, step 3
A positive determination is made at 00, and the system controller 60
Controls to reproduce the voice of the designated language (step 301). Next, the system controller 60 changes the RA
Based on the data stored in M62, it is determined whether the language of the voice designated by the switching operation is the user's native language (step 302).

If the designated language is the user's native language, an affirmative decision is made in step 302, and the system controller 60 sets the subtitles to a non-display state (step 303). If the designated language is not the user's native language, a negative determination is made in step 302, and the system controller 60 sets the subtitles to the display state (step 304).

As described above, the DVD reproducing apparatus 100 of the present embodiment registers the user's native language in advance, and
When the audio corresponding to the user's native language is selected when the video recorded in 10 is played, the subtitles are automatically set to the non-display state. The user does not need to perform the operation of switching to, and the operability can be improved by reducing the number of operations.

The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the gist of the present invention. For example, in the above-described embodiment, the DVD
The playback device 100 stores the language designated by the user in the RAM 62 as the native language, and sets the subtitles to the non-display state while the stored voice in the native language is being played. DV loaded in the playback device 100
The data specifying the native language may be recorded in D10 itself, and the data specifying the native language is read at the start of reproduction, and the language setting of the sound and the display / non-display of the subtitles are performed according to the contents. Should be set automatically. For example, in the case of a DVD 10 sold in Japan, data that identifies the native language as Japanese is recorded,
The DVD playback device 100 hides subtitles when the DVD 10 is played back in Japanese sound.

In the above-described embodiment, the native language is set manually by the user, but a language corresponding to the sales area of the DVD reproducing apparatus 100 is preset as the native language and stored in the RAM 62. You may leave it.
For example, if the sales area of the DVD reproducing device 100 is “Japan”, the mother tongue may be set to Japanese and stored in the RAM 62 of the DVD device 100 as an initial setting.

Further, in the above-described embodiment, the subtitle is set to the non-display state when the voice corresponding to the user's native language is selected. The specific language is not limited to the native language and can be set to another language. For example, if the user's native language is Japanese but wants to hide the subtitles when playing English audio, set "English" as the specific language to hide the subtitles. Then, the display state of the subtitles may be automatically changed according to whether or not the sound corresponding to English is being reproduced.

Further, in the above-described embodiment, the description has been made assuming that the read-only DVD is used as the disc type recording medium, but the type of the disc type recording medium is not limited to this, and various modifications are possible. Can be considered. For example, the present invention can be applied even in the case of reproducing an image recorded using a disc-type recording medium such as a data-rewritable DVD-RAM.

[0045]

As described above, according to the present invention, when the sound of the specific language is selected, the subtitles are automatically set to the non-display state, so that the operation for switching the subtitles to the non-display state can be performed. It becomes unnecessary, and the number of operations can be reduced to improve operability.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a DVD reproducing device according to an embodiment.

FIG. 2 is a diagram showing a data structure of VOBU.

FIG. 3 is a flowchart showing an operation procedure of the DVD reproducing device when registering a language as a mother tongue.

FIG. 4 is a diagram showing a specific example of a native language registration screen.

FIG. 5: DVD when starting playback of loaded DVD
6 is a flowchart showing an operation procedure of the playback device.

FIG. 6 is a diagram showing a display example of a screen for setting the reproduction state of audio and subtitles.

FIG. 7: D when switching language settings such as voice during playback
It is a flow chart which shows the operation procedure of a VD reproducing device.

[Explanation of symbols]

10 DVD 12 Spindle motor 14 Optical pickup 16 Feed motor 18 Servo controller 22 RF amplifier 24 Digital signal processor 30 stream separation unit 32 audio decoder 36 Video Decoder 40 sub-picture decoder 44 video processor 46 video encoder 47 display device 48 Digital-Analog (D / A) Converter 49 speakers 58 Operation part 60 system controller 62 RAM

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04N 5/85 G10L 5/02 J F term (reference) 5C052 AA04 AB03 AB04 CC06 DD04 DD06 5C053 FA24 FA29 GB06 GB11 GB12 JA03 JA12 KA05 KA24 LA06 5D044 AB05 AB07 AB09 BC03 CC06 DE49 FG18 FG23 GK08 GK12 5D077 AA23 DC40 DE20 HA07

Claims (5)

[Claims] 1. A video reproducing means for reproducing information by reading information recorded on a disk type recording medium, and an auxiliary reproducing means for reproducing audio and subtitles corresponding to the video to be reproduced. A voice / caption setting means for instructing the auxiliary reproducing means to set the content of the selected sound and to set the caption to a non-display state when the sound of a specific language is selected, A disk reproducing device characterized by the above. 2. The subtitle according to claim 1, wherein the specific language is a user's native language, and the subtitles are in a non-display state when the audio of the native language is being played back by the auxiliary playback means. A disc reproducing device characterized by. 3. The operation system according to claim 2, further comprising operation means for accepting a specific operation instructing setting of audio and subtitles corresponding to the native language, wherein the audio / caption setting means uses the operation means to perform the identification. A disc reproducing apparatus, characterized in that when an operation is performed, a sound setting corresponding to the native language and a subtitle non-display setting are performed. 4. The disc reproducing apparatus according to claim 2, further comprising a native language registration unit that registers a language corresponding to the native language in response to a user operation. 5. The audio / caption setting means according to claim 2, wherein the audio / caption setting means sets the audio and caption corresponding to the native language when the reproduction of the video by the video reproduction means is started. A disk reproducing device characterized by being preferentially performed.