JP3480943B2 - Information playback device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information reproducing device suitable for use in, for example, compact discs, video discs and reproducing devices thereof.

[0002]

2. Description of the Related Art For example, movies, music,
Various categories (genres) of software such as karaoke are available. In the case of a movie, a video signal of the movie and an audio signal accompanying it are recorded. In the case of music software, an audio signal of music and a video signal of an image image accompanying it are recorded. For karaoke software, left and right stereo accompaniment sounds, model vocal sounds,
An image or the like including lyrics accompanying it is recorded. The user operates a switch or the like according to the contents of the software as needed to select a desired signal.

[0003]

As described above, the conventional apparatus is configured to self-check and select a desired audio signal from a plurality of types of audio signals, for example.
Therefore, it is necessary to perform a test reproduction of what kind of audio signal is recorded on the disc, and to confirm it by switching the switch several times, which causes a problem of poor operability.

The present invention has been made in view of such a situation and improves operability.

[0005]

[0006]

[Means for Solving the Problems]

The information reproducing apparatus according to claim 1 is a device for audio information playback.
Storage means for storing information identifying one of the channels;
Decoding means for decoding the recorded information of the information recording medium, and decoding control means for controlling the decoding means so as to decode the packet of audio information corresponding to the channel stored in the storage means Is characterized by.

[0007]

[0008] The information reproducing apparatus according to claim 2, reproducing means for reproducing the recording information of the information recording medium, Eau
A memorizer that stores information that identifies one of the languages of bio information.
A storage unit, a decoding unit for decoding the audio information contained in the recorded information reproduced by the reproducing unit, and a storage unit.
Of the audio information corresponding to the stored language means
And decoding control means for controlling the decoding means so as to decode the packet .

[0009]

[0010]

[0011]

[Action]

An apparatus according to claim 1, audio
Information for identifying one of the channels of information is stored, the recorded information on the information recording medium is decoded, and the stored channel is stored.
The audio information packet corresponding to the channel is controlled to be decoded.

In the information reproducing apparatus according to the second aspect, the recorded information on the information recording medium is reproduced and the audio information is reproduced.
Information identifying one of the broadcast languages are stored, the audio information included in the reproduced recorded information is decoded, the serial
The packets of audio information corresponding to the stored language are controlled to be decoded. As a result, in any case, since the type of information can be automatically read, it is not necessary to confirm the information recorded on the recording medium by playing it back on a trial basis and the operability can be improved. it can.

[0013]

1 is a block diagram showing the configuration of an embodiment of an information reproducing apparatus of the present invention. The disc 1 is mounted in the drive 2 so that the recorded information can be reproduced. The decoder 3 decodes the reproduction signal output from the drive 2, supplies the TOC information in the reproduction signal to the controller 13, and supplies the reproduction data from each track to the decoder 4. The decoder 4 reads the data recorded in the header of each track from the input reproduction data and supplies it to the controller 13, and separates the data recorded in each track into audio data, video data or superimpose data. And supply them to the decoders 5 to 7, respectively.

The decoder 5 reads the data recorded in the audio header part (multiplexed header part) from the input audio data and supplies it to the controller 13, and separates the data of each subsequent packet for each channel. It is supplied to the decoders 8a to 8c.

Similarly, the decoder 6 reads the information recorded in the video header section (multiplexed header section) from the input video data, supplies it to the controller 13, and separates the subsequent packet data for each channel. And supply it to the video day coders 9a to 9c. Also,
The decoder 7 reads the information in the superimpose header section (multiplexing header section) of the input superimpose data and supplies it to the controller 13, and also separates the data of the subsequent packets for each channel, and the data decoder 10a To 10c.

The audio decoders 8a to 8c read the data of the packet header section from the input audio packet data and output it to the controller 13, decode the subsequent data of the audio data section and output it to the synthesizer 11. Video decoders 9a to 9
c reads the data of the packet header part arranged at the head of the input video packet, and the controller 1
3 and the video data following it are decoded and output to the synthesizer 12. The data decoders 10a to 10c read the data in the packet header portion of the input superimpose data packet, output the data to the controller 13, and decode the subsequent superimpose data to output to the combiner 12.

The synthesizer 11 is controlled by the controller 13 and synthesizes the outputs of the audio decoders 8a to 8c and outputs them to a speaker or the like (not shown). Also, the synthesizer 12
C combines the video data supplied from the video decoders 9a to 9c with the superimpose data supplied from the data decoders 10a to 10c in accordance with the control signal supplied from the controller 13, and C (not shown)
Output to RT etc. The combiners 11 and 12 select and output one input from a plurality of inputs, or combine a predetermined input and another input and output.

The display 15 and the digitizer 14 are integrated into a touch panel. That is, for example, when a predetermined switch button or the like is displayed on the display 15, when the displayed button is touched with a finger or the like, the touched coordinate position is detected by the digitizer 14, and the detection signal is output to the controller 13. It is designed to be. Therefore, the user can input a predetermined command to the controller 13 by touching a predetermined position on the digitizer 14. Further, the non-volatile memory 16 is adapted to store a predetermined default value.

FIG. 2 schematically shows the format of the disc 1. Starting point of disk 1 (innermost track)
The TOC information is recorded on, and predetermined information is recorded on the track following the TOC information. In this embodiment, four pieces of information (track 1 to track 4) are recorded. Each track is composed of a track header part and a data part following it, and video data (V), audio data (A) and superimpose data (S) are time-division multiplexed in the data part. Among them, the audio data is provided with an audio header portion at the head thereof, and subsequently, audio data of a plurality of channels (7 channels in this embodiment) are time-division multiplexed. Each channel is composed of a packet unit, and each packet is composed of a packet header part and an audio data part.

Similarly, for video data and superimpose data, data of a plurality of channels (packets) is time-division multiplexed and recorded following the video header section or the superimpose header section, and each packet is recorded in the packet header. Section and a video data section or a superimpose data section.

In the TOC information recording section, track header section, multiplexing header section or packet header section, for example, the codes shown in FIGS. 3 to 5 are recorded. That is, when the recorded information is a movie, karaoke, or music, as shown in FIG. 3, category numbers 0, 1, or 2, etc. are recorded correspondingly.

Further, an identifier is provided below the software category number. For example, when the software category is karaoke, an identifier as shown in FIG. 4 is defined for the audio data. In this embodiment, when the recorded stereo accompaniment is 0 or 1, the identifier is 0, the guide is 2, the model is 3, and the commentary is 4. To be done.

Further, an identifier is assigned to the audio data when the software category is movie, as shown in FIG. 5, for example. In this embodiment, if the recorded audio data is a background sound, the identifier is 0 or 1, the central sound is 2, the background sound is 3, and the serif is 4. Is
If it is a commentary, it is set to 5. Of course, the contents corresponding to these numbers or identifiers can be set arbitrarily.

Next, the operation of the embodiment shown in FIG. 1 will be described with reference to the flowcharts shown in FIGS. First, in step S1, the initialization operation of each part is performed, and then in step S2, it is determined whether or not the disc 1 is mounted in the drive 2. When the disc 1 is loaded in the drive 2, the controller 13 causes the drive 2 to read the TOC information of the disc 1. At this time, the decoder 3 decodes the TOC output by the drive 2, reads it, and outputs it to the controller 13 (step S
3). Then, the software category number of the track (information) for which reproduction is instructed via the digitizer 14 is read from the TOC information (step S4). And step S5,
In S6 and the like, it is determined whether the read software category number means karaoke or a movie.

For example, when the software category number represents karaoke, the processing from step S11 is executed. That is, the controller 13 sets the display of the soft switch on the display 15 for karaoke (step S11). Next, the identifier of the multiplexed audio data is read, and the operation mode corresponding to the read result is set (steps S13 to S1).
8). That is, when the identifier number is 2, the guide on / off switch is displayed on the display 15 (step S
13, 14), when the identifier number is 3, the example is on,
The off switch is displayed on the display 15 (steps S15 and S16), and when the identifier number is 4, the explanation on / off switch is displayed on the display 15 (steps S17 and S18). In this way, the display as shown in FIG. 8 is performed on the display 15.

The setting of these switches in the processes of steps S13 to S18 is such that the previously set state is stored in the non-volatile memory 16 and corresponds to the stored value.

Next, the operation of the guide on / off switch, model on / off switch, description on / off switch displayed as shown in FIG. 8 is determined (step S19,
21, 23), and the synthesizer 11 is controlled so that the data corresponding to the operation is selected (steps S20, S2).
2, S24). That is, if the guide on / off switch is turned on, the guide sound is selected and output, and if the model on / off switch is turned on, the model is selected and output, and the commentary on / off switch is turned on. If so, the commentary will be selectively output.

Guide on, off switch, example on,
When all of the off switch, the explanation on, and the off switch are off, the stereo accompaniment is selected. Then, this reproduction state is repeated until the end of the track reproduction is instructed (step S25).

For example, reproduction of track 3 is performed by digitizer 1
4 is instructed to the controller 13, the controller 13 controls the drive 2 to reproduce the data of the track 3. This reproduction data is supplied to the composite unit 4 and the composite units 5 to 7 via the decoder 3. Then, the decoders 8 to 10 corresponding to the multi-function devices 5 to 7 respectively decode the audio data, the video data or the superimpose data of the corresponding channels. Although only decoders for three channels are shown in FIG. 1, this number of channels can be provided corresponding to the number of channels recorded on the disc 1.

In this way, the synthesizer 11 has the track 3
It means that the video data of the track 3 and the superimpose data are input to the synthesizer 12. Then, when the user turns on the guide on / off switch, the synthesizer 11 selects and outputs the guide audio data from the input audio data.

Although the example of karaoke has been mainly described above, for example, when recording one movie, it is conceivable to record the audio data, which is translated into the language of each country, in a multiplexed manner. In such a case, for example, as shown in FIG. 9, an identifier can be set corresponding to each language. In this embodiment, the identifiers 0, 1, 2, 3 correspond to English, French, German or Japanese, respectively. In the non-volatile memory 16, one of these identifiers is preset as a default value (designation information). For example, for products exported to the United States and the United Kingdom, identifier 0 is set as the default value, products exported to France have the default value 1 set, and products exported to Germany have the default value 2 set.
Is set, and the default value 3 is set for products used in Japan.

When reproduction is executed in such an apparatus, processing as shown in FIG. 10 is executed. That is, first, reproduction of a predetermined track is instructed from the digitizer 14 (step S31). For example, when the reproduction of the track 3 is instructed, the controller 13 controls the drive 2 to start the reproduction of the track 3. After the start of reproduction (step S32), the track header is read from the output of the compound device 4, and the number of multiplexed voices, language processing data, etc. are read (step S33). Further, the default language data is read from the nonvolatile memory 16 (step S3
4) It is determined whether or not there is any of the multiplexed audio data that matches the default value (step S3).
5). If there is a match with the default value, the combiner 11 is controlled to select it (step S3).
6). If there is no match, the first placed one of the multiplexed audio data is selected (step S37).

In this way, it becomes possible to reproduce audio data of a predetermined language in each country without performing a special operation from the same disc. Of course, if the user wants to reproduce audio data in different languages in each country, the user operates the digitizer 14 to instruct the controller 13 to change the default value and set the default value corresponding to the predetermined language in the non-volatile memory 16. Of course, you can do it.

[0034]

[0035]

【The invention's effect】

Further, according to the information reproducing apparatus according to claim 1, Eau
The information that identifies one of the channels of
The information recorded on the information recording medium is decoded and stored.
Since the control is performed so that the audio information packet corresponding to the channel is decoded, the user does not need to check the information recorded on the recording medium by trial, and the operability is improved. It

According to the information reproducing apparatus of the second aspect, the recorded information on the information recording medium is reproduced and the audio information is reproduced.
Stored information that identifies one of the languages, decodes the audio information included in the reproduced recorded information, and stores the stored information.
By controlling to decode the packet of audio information corresponding to the word, the user does not need to check the information recorded on the recording medium by trial, and the operability is improved. It

Further, in the case of recording a movie, for example, when voice data for a visually impaired person is recorded multiple times as a commentary, the visually impaired person sets the commentary as a default. If this is done, this commentary is always automatically played back, which makes it convenient to select the commentary each time. In addition, for people who are deaf or hard of hearing, you can easily enjoy the software if you specify the explanation using superimpose data as the default.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of an information reproducing apparatus of the present invention.

FIG. 2 is a diagram for explaining a disk format in the embodiment of FIG.

FIG. 3 is a diagram for explaining software category numbers recorded on a disc 1 in the embodiment of FIG.

FIG. 4 is a diagram illustrating an identifier when the data recorded on the disc 1 of FIG. 2 is karaoke.

5 is a diagram for explaining an identifier in the case of data recorded on the disc 1 of FIG. 2 or a movie.

FIG. 6 is a flowchart illustrating an operation when karaoke is recorded on the disc 1 of FIG.

FIG. 7 is a flowchart following FIG. 6;

FIG. 8 is a view for explaining a display example on the display 15 in the embodiment of FIG.

9 is a diagram illustrating an identifier when the audio data recorded on the disc 1 of FIG. 2 is in a foreign language.

FIG. 10 is a diagram for explaining the operation of the embodiment of FIG. 1 when the identifier as shown in FIG. 9 is recorded.

[Explanation of symbols]

1 disc (recording medium) 2 drive 3 decoder 4 to 7 Decoder 8, 8a to 8c audio decoder 9, 9a to 9c video decoder 10, 10a to 10c data decoder 11,12 synthesizer 13 Controller 14 digitizer 15 display 16 non-volatile memory

Claims (2)

(57) [Claims] 1. Recording information to be recorded in a data recording area includes video information and audio information of a plurality of channels, each channel being divided into a plurality of packets and time division multiplexed. An information reproducing apparatus for reproducing the recorded information of an information recording medium in which identification information for identifying each of the channels is recorded in the header portion of the packet, which is one of the channels of the audio information. Information that identifies one
And a decoding means for decoding the recording information of the information recording medium, and a decoding means for controlling the decoding means so as to decode the packet of the audio information corresponding to the channel stored in the storage means. An information reproducing apparatus comprising: a control unit. 2. The recording information recorded in the data recording area includes video information and audio information of a plurality of channels, each channel being divided into a plurality of packets and time division multiplexed. Recorded and prescribed
A the area information reproducing apparatus for reproducing the information recorded on the information recording medium identification information for identifying the type of language that corresponds to the channel of the each being recorded, reproducing the recorded information of said information recording medium And reproducing information for identifying one of the languages of the audio information described above.
Storage means for, decoding means for decoding the audio information included in the recording information reproduced by said reproducing means, said to decode packets of the audio information corresponding to the language stored in the storage means An information reproducing apparatus comprising: a decoding control means for controlling the decoding means.