JP2003051158A - Disk player - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently record and display character information indicating the contents of audio data when mainly recording the audio data such as a music source. SOLUTION: The audio data are disposed in A packs and the character information and display time data about the audio data are disposed in A-CONT packs. A display time decoder 51 separates the display time data in the A-CONT packs into display start time data and display finish time data and applies them to a start comparator 52 and an end comparator 53. A character data decoder 54 converts the character data into dot matrix character data for a display and stores them into a buffer 55. The start comparator 52 and the end comparator 53 compare the data of the display start time and the display finish time with A pack addresses to control the display time of the characters.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an audio signal
From a disc that records character information indicating the song title, etc.
Disc used to display recorded information
Regarding raw equipment. [0002] Conventionally, a tune of an audio signal of a music source has been used.
CD (Comparator)
Disk) is known. On traditional CDs, the sentence
When character information is recorded, P, Q, R, W, S, T, U,
Of the 8-bit subcodes of V and W, 6 from R to W
Recording is performed using a bit channel. [0003] However, the CD
Indicates that character information indicating the content of the music source is scattered on the disc
The music source being played is
Display while following the process and changing instantly
Difficult, and therefore, the music source (A) being played
On the other hand, characters (V) can be displayed AV effectively.
There is a problem that there is no. By the way, DVD (Digital Versatai)
Disc)-For video discs, movies and other moving images
When recording subtitles, etc.,
Recording. However, DVD
And mainly record audio data such as music sources
DVD audio discs
Is a problem that audio data allocation is reduced
There is. [0005] In view of the above problems, the present invention provides a music source
Audio data such as
Display those recorded information from the recorded disc
To provide a disk playback device that can
I do. SUMMARY OF THE INVENTION [0006] The present invention is directed to the above object.
To achieve this, it consists of the following means. That is, the recording area of the auxiliary signal, the recording area of the main signal,
Are continuously arranged disks, and the main signal
Audio pack containing audio data in the recording area
And character information on the audio data, and display thereof
Display time control data to control time, and language type
Character display pack containing language code data indicating
Information for managing audio packs and character display packs
A management pack including the audio pack and a sentence.
Title set including the character display pack (AT
S) is recorded and includes a video pack including video data.
Data for controlling the video data is not recorded.
Disc playback apparatus for playing back a disc,
Audio packs and character display packs and tubes from disc
Reproducing means for reproducing the physical pack;
From the generated character display pack,
First decoding means for decoding character information to be decoded;
When displaying from the character display pack reproduced by the recording means
Code data indicating the language control data and the language type
Second decoding means for decoding the data, and the first data
The character information decoded by the code means is stored in the second
Display time control data decoded by decoding means
And character information to be displayed based on the language code data
A disk reproducing device having a display means. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to FIGS.
A first embodiment of the invention will be described. FIG. 1 is suitable for the present invention.
Embodiment of an audio signal encoding device used
FIG. 2 shows the signal processing circuit of FIG. 1 in detail.
It is a block diagram shown. Next, the configuration of the encoder will be described with reference to FIG.
This will be described in detail. Analog audio on input terminal IN
A signal is input, and this input signal is supplied to the A / D converter 31
Higher sampling frequency (sampling period
Δt), eg sampled at 192 kHz,
For example, it is converted to a 24-bit high-resolution PCM signal,
Are converted to data strings xb1, x1, xa1, x2, xb2, x3, xa2,..., Xbi, x2i-1, xai, x2i,. This data sequence (xbi, x2i-1, xai, x2
i) is a signal processing circuit 32 and a memory 3 shown in detail in FIG.
3 and then the DVD encoding circuit 34
Packed in DVD audio format by
You. This packing data is output to the output terminal OUT1.
Or by the modulation circuit 35 in a modulation method according to the medium.
The modulated signal is output to the output terminal OUT2. Referring to FIG. 2, the configuration of the signal processing circuit 32 will be described.
explain in detail. First, a low pass through a half band
The pass filter 36, for example, an FIR filter
Data sequence (xbi, x2i-1, xa) corresponding to the resolution curve α
i, x2i) to the band-limited low-resolution curve β
Corresponding data strings xc1, *, *, *, xc2, *, *, *, xc3, *, *,
*, ..., xci, *, *, *, ..., and then thin out the data "*" in this data string
The data strings xc1, xc2, xc3,..., Xci,. Here, the data sequence xci is an A / D converter
31 A / D-converted digital data band limitation
To reduce the sampling frequency to 1/4
Has become. In addition, data strings (xbi, x2i-1, xai, x
2i), the data xi is thinned out by the thinning circuit 38.
Then, data strings xb1, xa1, xb2, xa2,..., Xbi, xai,. These data strings xci, xbi, x
Based on ai, adder 39 acting as a difference calculator
The difference xbi-xci = [Delta] 1i xai-xci = [Delta] 2i is then calculated. Here, the difference data Δ1i and Δ2i are, for example,
24 bits or less, and the number of bits is fixed
However, it may be variable. The allocation circuit 40 is a data string
xci and the difference data Δ1i, Δ2i are user data (see FIG. 5).
(1 packet = 2034 bytes),
The user data is output to the DVD encoding circuit 34. The DVD encoding circuit 34 also has a main music
In addition to the music source, character information indicating the content of the music source and
Record the display time on a DVD-Audio disc
For this reason, the format shown in FIG.
Packing recording information. FIG. 3 shows a DVD-Video format,
DVD as an embodiment of a disc applied to the present invention
FIG. 3 is an explanatory diagram showing an audio format, and FIG.
Audio Content Block Unit (ACBU)
FIG. 5 is an explanatory diagram showing the format of the audio format shown in FIG.
Instructions detailing pack and video pack formats
FIG. 6 shows the audio control (A-CON) shown in FIG.
T) Explanatory drawing showing the format of the pack in detail, FIG.
The audio character display (ACD) in FIG.
FIG. 8 is an explanatory view showing the rear format in detail, and FIG.
Explanatory diagram showing an example displayed by namespace information,
FIG. 9 shows the audio search data (ASD) area of FIG.
FIG. 10 is an explanatory diagram showing the format of FIG.
Showing a modification of the audio content block unit
FIG. FIG. 11 is a view showing a display applied to the present invention.
A block diagram showing a DVD playback device as an embodiment of a playback device.
FIG. 12 is a functional block diagram of the DVD player shown in FIG.
The block diagrams shown in FIGS. 13 and 14 show the AV synchronous reproduction processing.
FIG. 15 is a flowchart for explaining the process, and FIG.
FIG. 1 is a block diagram showing in detail the character display circuit of FIG.
6 is a block diagram showing a modified example of the DVD reproducing apparatus of FIG.
FIG. 17 shows another modification of the DVD reproducing apparatus of FIG.
FIG. FIGS. 3A and 3B respectively show a DVD-Video
Indicates each format of video and DVD-audio.
VD-Audio formats have different area names
However, it is compatible with DVD-Video. First, roughly
DVD-Video format is the first video management
(VMG) followed by multiple video title sets
(VTS) area, while DVD
-The audio format is corresponding
OMG (AMG) and several audios following AMG
It consists of each area of the AIO title set (ATS).
Have been. Each VTS is the first VTS information
(VTSI) followed by one or more video components
Tents block set (VCBS) and last VTSI
On the other hand, each of the ATSs
ATS information (ATSI) of the head and it
Following one or more audio content block sets (A
CBS) and the last ATSI. AT
The performance time of each song in ACBS is set in real time in SI.
Is Each of the VCBSs is composed of a plurality of VCBs.
On the other hand, each ACBS is composed of multiple ACBs.
Have been. Each of the VCBs has one video title (Ti
tre) minutes, each of the ACBs correspondingly
This is for one album of Dio. VCB
Each (1 title) has a plurality of chapters (Chapter
r), while each of the ACBs (1 alba)
Correspondingly) to multiple tracks (Tracks)
It is composed of Chapters are part of titles
(PTT), and the tracks are part-of-album (P
TA). Each of the chapters includes a plurality of cells (CELL).
, While each of the tracks has a corresponding
Is composed of a plurality of indices (Index)
I have. Each cell has a plurality of VCB units (VCBU)
, While each of the indexes has a corresponding
Accordingly, it is composed of a plurality of ACB units (ACBU).
Have been. Each of the VCB unit and ACB unit is
It consists of multiple packs, one pack is 2048 bytes
It is composed of Each of the VCB units has a leading control
Pack (hereinafter referred to as CONT pack)
Number of video (V) packs, audio (A) packs and
A sub-picture (SP) pack, while A
Each of the CB units has a corresponding first audio
O Control Pack (A-CONT Pack)
Followed by multiple A-packs and V-packs
Have been. The following V pack is controlled for the CONT pack.
A-CONT pack contains CD information
Manages the audio signal of the subsequent A-pack like OC information
Information for management. A pack has audio
Data is placed, and the V-pack contains video data,
Other than audio data, such as closed captions
(CC) data is arranged. Next, an audio stream is recorded.
The A pack and its control pack will be described. As shown in FIG.
So that the VCB unit can be any 0.4-1.0 second
The ACB unit consists of a number of packs,
Consists of an arbitrary number of packs for 0.5 to 1.0 seconds
ing. In addition, DVD-Audio ACB unit
A-CONT pack is DVD-Video VCB
It is arranged in the third pack in the unit. The A-CONT pack is basically an audio
It is placed in 0.5 second units of time, and the index breaks
Is arranged so that it completes in the range of 0.5 to 1.0 seconds.
You. Also, audio time (GOF: Group of Audio)
Frame unit) is indicated by the A-CONT pack.
The data position is the audio frame number and the first
Depending on the number of access unit pointers and frame headers
Decided. The A-pack immediately before the A-CONT pack is
Padding in 0.5 second units of audio time
Do not force. Adjacent A-packs receive audio signals
Placed in relation to each other, eg for stereo
L channel pack and R channel pack
And 5/6/8 channel multi-channel
In such a case, they are similarly arranged adjacently. V pack is an ode
A-pack for displaying video during playback of audio signal
It is arranged adjacent to. The A pack and the V pack are as shown in FIG.
2034 bytes of user data (A data, V data)
4 byte pack start information and 6 byte
SCR (System Clock Reference)
Value) information, 3-byte Mux rate information and 1-byte
A total of 14 bytes of pack header for toughing is added.
(1 pack = 2048 bytes in total)
G). In this case, the time stamp SCR information is
In the first pack in the ACB unit, the same
By making it continuous within Lubham, A
You can manage the time of work. On the other hand, the A-CONT pack is shown in FIG.
As shown, a 14 byte packed header and 24 bytes
System header and a 1003 byte ACD (audio
Io character display) packet and 1007 bytes
ASD (Audio Search Data) packet
It is configured. The ACD packet has a size of 6 bytes.
A packet header, a 1-byte substream ID,
As shown in detail in FIG.
Character display) information and 320 bytes
It is composed of audio reproduction control information. A
The SD packet also has a 6-byte packet header and 1
As shown in detail in FIG.
1000 bytes of ASD (Audio Search Data)
It consists of. Here, FIG. 7A and FIG. 9A show the first
FIG. 7B and FIG. 9B show a second example.
are doing. ACD information of 676 bytes in the first example
The area is a 48-byte area as shown in detail in FIG.
General information area and 294 characters each
"1" and "2" information areas and 16-byte display control
It consists of a data area and a 24-byte hold area.
ing. Each information area of characters "1" and "2" is 93 bytes
Default namespace area and two 93-byte
Free space area and 15-byte data pointer
It is constituted by the rear. In the namespace area
Is used to display a song name as shown in FIG.
1-byte 1 / 4-byte character data for header and 62 bytes
Full-width and half-width character data for text are arranged. 16
In the byte display time data area, when the display of characters starts
A-pack address (interval and end time)
Are arranged in 8 bytes. The 48-byte general information is, for example, 1
6 bytes of service level information and 12 bytes of language code
Code information, 6-byte character set code information, and 6 bytes.
Display item information of the site and the 2-byte "Previous ACD information
Information and the 6-byte hold information.
It is. The 16-byte service level information is
Size, display type, audio / video / SP distinction,
Trim, etc., and the characters are mandatory,
Map is optional. 12-byte language set
The code information consists of the characters "1" and "2" as in the video file.
Language in 2 bytes each, up to 8 in one file
Indicates the language. English is mandatory. The 6-byte character set code information is expressed in language
Can have up to 15 character codes corresponding to codes
The presence or absence and type of the language of characters "1" and "2" are
Indicated by light. A code example is shown below. 1. ISO646 2. ISO8859-1 3. The display item information of MS-JIS 6 bytes is shown in the free space shown in FIG.
Source "1", "2", presence / absence of data pointer, ID
You. The namespace is mandatory, and the album
Name, music name and artist name
Describe. 294-byte audio reproduction shown in FIG.
The contents of the control information area are arbitrary, for example, 25 bytes each.
Audio playback control information area for 10 types of
50 bytes) and 44 bytes of reserved area
You. One type of audio playback control information area contains 20
Bytes of graphic equalizer information and 3 bytes of
Bell balance information and 2-byte reverberation additional information are arranged.
This information is selected by the user to
Is controlled. These audio playback control information
Indicates that the user plays the music arranged in the A-pack
In some cases, for example, the genre (classical, ja
Music, rock, BGM) and in the same genre
Even if there is a performance state, recording state, atmosphere, etc. of the song
So that the sound quality during playback is best
Is the data recommended by the mixer. The 1000 byte ASD (audio server)
Data) is 16 bytes as shown in detail in FIG.
General information of the default, 8 bytes of current number information,
16-byte current time information and 8-byte album set
Search information, 8-byte album search information,
04 bytes of track search information and 408 bytes of
Index search information and 80-byte highlighter
Information and a 52-byte holding area.
You. The character display time data is stored in the ACD area.
Instead of recording in the ASD area
Is also good. That is, as a second example of the first embodiment,
As shown in FIG. 7B, a 16-byte sentence in the ACD area
Character control data as a reserved area and an area of 40 bytes
All are reserved areas, and instead, as shown in FIG.
16 bytes of 52 bytes reserved area of ASD area
The remaining 36 bytes are reserved as character display time data
It may be an area. The ACBU shown in FIG. 3B is an A-CO
Includes NT pack and CONT pack.
Do not include V pack and CONT pack as shown
You may comprise. In this case, no video signal is recorded.
However, the recording capacity of the audio signal is extra
Disk size can be reduced.
Also, the playback function can be simplified, so it is portable
That is suitable for a playback device for a computer. Next, a DV according to the present invention will be described with reference to FIG.
The D playback device will be described. DVD Audio Disc
The data of the above structure is EFM-modulated in
It is recorded in the format. Operation unit 18 and remote control device 1
Use 9 to select, play, fast-forward, stop, etc.
Then, the control unit 23 operates the drive device 2 in accordance with the operation.
Control the playback device 17 and record it on the disc 1 during playback.
The read pit data is read by the drive device 2.
After that, it is EFM demodulated. In the reproducing device 17, this signal is output from the CONT
To the A-CONT pack detector 9 and the A-CONT pack detector 9.
You. The CONT pack detector 3 detects the CO in the reproduced data.
Detects NT pack and sets control parameters in parameter section 8
And controlled by CONT pack
The V pack is sequentially written into the V pack buffer 4. Buff
User data (video
Signal and sub-picture information) are extracted
Pack order based on the SCR (see Fig. 5)
In addition, in order of output time based on the PTS in the CONT pack
After being taken out, the image conversion unit 6, the D / A conversion unit 7,
Analog video signal via video output terminals 15, 15 '
Is output as These blocks 3 to 8 are video processing
And a video processing unit 17V.
23, the internal power switch control unit 30
It operates when the power switch SW is turned on. Further, the A-CONT pack detecting section 9 performs reproduction.
Detects A-CONT pack in data and controls
Data in the parameter section 14 and A-CON
A pack controlled by T pack
10 are sequentially written. A-path written to buffer 10
User data (audio signal) in the
Unit 11 in the order of packs based on the SCR.
The current audio search data ASD in the CONT pack
It is taken out in order of output time based on the presence time (see FIG. 9).
Then, the PCM conversion unit 12, the D / A conversion unit 13,
An analog audio signal via the audio output terminal 16
Is output. The display data in the A-CONT pack is displayed.
(The audio character display shown in FIGS. 7 and 8)
A information ACD) is sent to the display signal
The display signal is generated by the display signal output terminal 22.
Or output to the built-in character display unit 21.
You. FIG. 12 functionally shows the structure shown in FIG.
It is a block diagram. The reproducing means 2 is a drive shown in FIG.
In response to the apparatus 2, the reproduction signal processing separation means A (9, 10,.
11 and 14) are A-CONT pack detector 9, A-pack
Buffer 10, take-out unit 11, and parameter unit 14
Correspondingly, audio signal output means (12, 13) is PC
It corresponds to the M conversion unit 12 and the D / A conversion unit 13. Ma
The character information output means 20 corresponds to the display signal generation unit 20.
The display means 21 corresponds to the character display unit 21. Ma
The reproduction signal processing / separating means V (3, 4, 5, 8)
NT pack detector 3, V pack buffer 4, take-out unit
5 and the parameter section 8, and the video signal means
Picture information means (6, 7) includes an image conversion unit 6 and a D / A
It corresponds to the conversion unit 7. The control means 23
Yes, it is. In FIG. 12, the control means 23 is the operation unit 1
8 or the remote control device 19
When a command signal is sent, it responds to the playback command.
By sending the same address control information signal to the reproducing means 2.
The target music is reproduced from the disc 1. Playback signal processing
The separating means A separates the reproduced data and outputs the A-CONT information.
Sending the audio signal to the control means 23;
Sends the character information to the output means (12, 13) and outputs the character information.
Send to force means 20. The reproduction signal processing / separating means V
And sends CONT information to the control means 23,
The video signal and the sub-picture information are
It is sent to the sub-picture information means (6, 7). An AMGI (audio manager)
Information), ATSI (audio title)
Set information), as shown in Figure 6
Area reserved in ACD packet of A-CONT pack
And the TOC information is additionally recorded.
Access the TOC information and record it in the TOC information storage unit 14A.
You can remember the beginning of the song. This TOC information
Is recorded in the lead-in area of the CD
Can be used. The TOC information is read at the start of reproduction.
In the memory constituting the TOC information storage unit 14A
When the beginning of a song or movement is specified and stored,
Access to the disc 1 with reference to the TOC information
Access. Note that this TOC information also includes AMGI, A
Record on TSI or A-CONT pack and update
As shown in FIG.
Recording in the recording area (TOC area 1a in the figure)
At the start of production, the TOC detection means 24 sets this TOC area 1a.
Is independently accessed and stored in the TOC information storage unit 14A.
You may make it. Next, referring to FIG. 13 and FIG.
Synchronization using playback control information such as information and search information
The reproduction process will be described. In FIG. 11, for example, a song or music
When chapter start playback is specified, the
The TOC information is referred to (step S1).
Calculate cell and index locations based on OC information
(Step S2). Then search the location (step
Step S3), when confirmed, A and A shown in detail in FIG.
Synchronous reproduction of V is performed (step S4 → S5). In FIG. 14, when the CONT pack is reproduced,
(Step S11) Then, the A-CONT pack is reproduced
(Step S12), then CONT pack and AC
Check if the time information in the ONT pack is the same time
(Step S13). And if they are not the same time
± 1 for both CONT pack and A-CONT pack
Adjust by the amount of the pack (step S14), and then
Returning to steps S11 and S12, the CONT pack and AC
Play the ONT pack. In step S14,
Either the CONT pack or the A-CONT pack
Even if you adjust only the amount and play the pack
Good. In step S13, the CONT pack
If the time information in the A-CONT pack is the same,
Play A-pack controlled by A-CONT pack
And one A-pack address (SCR information)
Increment (step S15), then the CONT
Play V pack controlled by pack and V
Increment the pack address (SCR information) by one
(Step S16). Next, the playback of the A-pack is finished.
It is checked whether the process has been completed (step S17), and the process ends.
If not, the process proceeds to step S18.
If so, the process proceeds to step S20. At step S18, the reproduction of the V-pack
Check if it has finished, and if not,
The process returns to step S13.
Proceed to step S19. In step S19, the CONT package
Play the next V-pack controlled by the
The pack address is incremented by one, and step S1
Return to 3. In step S20, the A-CONT pack
Playback of the next A-pack controlled by
The packet address by one, and then the V pack
It is checked whether or not the reproduction has been completed (step S2).
1) If not finished, proceed to step S22,
On the other hand, if the processing has been completed, the process proceeds to step S23. In step S22, the A-CONT package is
Check whether the A pack controlled by the
And if it is not the last pack, return to step S16.
On the other hand, in the case of the last pack, the process returns to step S12.
To reproduce the next A-CONT pack. Step S23
Now, the next V pack controlled by the CONT pack
And increment the V-pack address by one.
And then check if the end of frame (EOF)
Check (step S24).
Returning to step S13, on the other hand, in the case of EOF, this AV
The synchronous playback processing ends. Next, referring to FIG.
Character information output means 20, flat matrix display
The operation of 21 'will be described in detail. Inside A-CONT pack
Is displayed by the display time decoder 51.
Start time data and display end time data are separated.
Data is stored in the start comparator 52 and end comparator.
Applied to the data 53. The statement in the A-CONT pack
The character data is decoded by the character data decoder 54 for display.
Is converted to character matrix data, and this data is
Stored in the file 55. Then, the start comparator 52 displays
Compare the start time data with the A-pack address being played,
When they match, the dot matrix
A read start control signal is sent and the display 56
A display ON control signal is sent to (21 '). Also,
The end comparator 53 is displaying the display end time data and reproducing.
A-pack addresses are compared, and when they match, the display time
To output the next character time data to the coder 51
Of the display 56 (2)
A display-off control signal is sent to 1 '). FIG. 16 shows a modification of the first embodiment.
V pack and CONT pack are included as shown in FIG.
To include only the A-pack and the A-CONT pack.
FIG. 11 shows an apparatus for playing back a formed disc.
The video processing unit 17V is omitted. Also audio
The signal output means 12 and 13 control the A-pack being output.
A in A-CONT pack before A-CONT pack
Read the CD information in advance and store it in the ACD storage unit 14B.
The character information in the ACD information is displayed as a display means 21 on a flat surface.
Even if it is displayed on the matrix display 21 '
Good. Audio disc without CONT pack
Then, the synchronization of FIG. 14 is not required. FIG. 17 shows another modification of the first embodiment.
The lead-in area of the innermost circumference of the disc 1
(In the TOC area 1a shown in the figure) at the start of playback
The TOC detection means 24 separates the TOC area 1a
To access and store in the TOC information storage unit 14A
The device is shown. Further, in this configuration, A shown in FIG.
Reproduce the sound quality recommended by a professional mixer in a CD packet
Audio playback control information for
If the sound quality / level control information output means 31 and the sound quality / level
A control processing means 32 is provided to control sound quality based on the control information.
/ Level is controlled. Also control
Using the start time data and the control end time data,
Time block of sound quality / level control information in blocks with such a configuration
Control may be performed. Next, a second embodiment will be described with reference to FIGS.
The form will be described. FIG. 18 shows a second embodiment.
DVD-Audio format for DVD-Video
FIG. 19 is an explanatory view showing a comparison with the format.
Audio Content Block Unit (ACBU)
FIG. 20 is an explanatory diagram showing the format, and FIG.
Explanatory diagram showing a modification of the content block unit,
FIG. 21 shows the audio control (A) shown in FIGS.
-CONT) Pack format description
FIG. 22 shows the display (D) package shown in FIG. 18 and FIG.
FIG. 23 is an explanatory diagram showing the format of the network in detail, and FIG.
A DVD playback device is shown as the disk playback device of the embodiment.
24 is a block diagram, and FIG. 24 functions as the DVD reproducing device of FIG.
FIG. 25 is a block diagram schematically showing an AV system according to the second embodiment.
Flowchart and diagram for explaining D-synchronized reproduction processing
26 is a block diagram showing a modification of the DVD reproducing apparatus, FIG.
FIG. 7 is a block diagram showing another modification of the DVD reproducing apparatus.
You. Here, in the first embodiment, the audio key
Character display (ACD) information is transferred to the A-CONT
In the second embodiment, FIG.
8. As shown in FIG.
A special display (D) pack in addition to the V-pack
Provided in the D-pack. In addition, the first real
The V pack and the CONT pack correspond to FIG. 10 of the embodiment.
Even in the case where it is configured not to include, as shown in FIG.
A D pack is provided and ACD information is arranged in the D pack. The A-CONT pack of the second embodiment
Is the ACD packet of the first embodiment as shown in FIG.
Area (1003 bytes) is set as a spare packet.
A 14-byte packed header and a 24-byte system
Header, 1003 bytes of spare packet and 1007
It is composed of a byte ASD packet. And D
The pack is a 14-byte pack header as shown in FIG.
Data, a 24-byte system header, and 1003 bytes
ACD (Audio Character Display) packet
And a spare packet of 1007 bytes.
Here, the ACD packet in the D pack is shown in FIG.
Both character information and display time data are arranged as shown
And the A-CONT pack ASD packet
As shown in FIG. 9A, no display time data is arranged.
No. In the reproducing apparatus of the second embodiment, the D
The packs are processed in a series of A-packs. That is, DVD
In a video reproducing apparatus, as shown in FIGS.
And the A-pack are controlled by the A-CONT pack.
Buffer 10 and the D-pack is a display signal signal generator.
20, processed and displayed by the character display unit 21. Ma
In addition, the D-pack synchronous reproduction process is also performed in step S shown in FIG.
15, S17, S20, etc.
It is incremented and synchronized with the A-pack and V-pack.
Further, in the case of a DVD audio reproducing apparatus, similarly, FIG.
6. As shown in FIG. 27, the D-pack is
0, processed and displayed by the character display unit 21 '. Figure
Reference numeral 27 denotes a case where audio playback control information is further recorded.
If the sound quality / level control information output means 31 and the sound quality / level
A control processing means 32 is provided to control sound quality based on the control information.
/ Level is controlled. Next, a third embodiment will be described. This
In the third embodiment, the A-CO
A D pack is provided in addition to the NT pack. However, the D pack
As shown in FIG. 7B, character information is included in the ACD packet.
It is arranged but the display time data is not arranged.
As shown in FIG. 9 (B), the data between A-CONT packs
Of ASD packets. Next, a fourth embodiment will be described. This
In the fourth embodiment, the A-CO
A D pack is provided in addition to the NT pack. And D pack
As shown in FIG.
Information, a display start address and a display end address.
6-byte display time data is arranged, and A-
In the ASD packet of the CONT pack, the display time data
Outside general display control data is arranged. Here, referring to FIG. 9B, AC
ASD packet of ONT pack is also 16 byte table
Time data area and 36-byte reserved area (total of 5 bytes)
2 bytes). Therefore, in the fourth embodiment,
General display control of up to 52 bytes for ASD packets
Data is arranged, and as an example, the display shown in FIG.
Display on a display device with a larger number of pixels than a 56 (21 ')
To combine and display 2x8 character information
8-byte display start address as display control data
(Address corresponding to the ACD display start address)
The 8-byte division number data will be arranged soon. FIG. 28 shows the format of the fourth embodiment.
Character display circuit for displaying the characters
Inter decoder 51, start comparator 52, end
Comparator 53, character decoder 54, buffer 55,
The display 56 has the same configuration as that of FIG. here
The buffer 55 and the display 56 are as shown in FIG.
As described above, 15 double-byte characters (31 single-byte characters) per line × 2.
It is configured to be able to display 5 lines of characters, and this is one set.
You. Then, in the video display processor 59,
The V-RAM 59a has 2 × 8 sets as shown in FIG.
Has the capacity to store the character information. The character display device shown in FIG.
A normal mode for displaying character information on the display 56,
2 × 8 sets of character information are output via the external output terminal 15 ″
There is a special mode for displaying on an external display device (not shown).
The operation in the normal mode is substantially the same as that in FIG. First,
That is, in the normal mode, the display time data in the D pack
Data is displayed by the display time decoder 51 with the display start time data.
Display end time data is separated into
Applied to the comparator 52 and the end comparator 53.
It is. Also, character data in the D pack is
To dot matrix character data for display by the
The data is converted and stored in the buffer 55. Then, the start comparator 52 displays
Compare the start time data with the A-pack address being played,
When they match, the dot matrix
A read start control signal is sent and the display 56
A display ON control signal is sent to (21 '). Also,
The end comparator 53 is displaying the display end time data and reproducing.
A-pack addresses are compared, and when they match, the display time
To output the next display time data to the coder 51
Of the display 56 (2)
A display-off control signal is sent to 1 '). On the other hand, in the special mode, the display in the D-pack
The time data is the display start time by the display time decoder 51.
Data and display end time data.
Are the start comparator 52 and the end comparator 53
Is applied to the CPU 60 as well. Ma
Further, the character data in the D-pack is
Is converted to dot matrix character data for display by
This data is stored in the buffer 55. Furthermore, A
-Display start address in the CONT pack (display of ACD
(Address according to start address) and division number data
The display control data decoder 58 decodes the CP
Applied to U60. Then, the start comparator 52 displays
Compare the start time data with the A-pack address being played,
When they match, the dot matrix
Send a read start control signal, and
53 is the display end time data and the A-pack address being reproduced.
The display time decoder 51
Time to output the next set of display time data
Send a ringing signal. Then, the CPU 60 controls the general display control data.
Display start of each set decoded by the decoder 58
Display time decoder based on address and division number data
Display start time data of each set decoded by
Check the data and display processor
Write one set to V-RAM 59a in 59
Specify only the address. As a result, the data read from the buffer 55 is read.
One set of dot matrix data is
For the V-RAM 59a in the display processor 59
The display start address and the division number data by the CPU 60.
Is written to the specified address based on
And the dot matrix data for 16 sets is VR
It is written to AM 59a. Video Display Pro
Sessa 59 is the 16 sets of dot matrix data
Expands the video signal into a single-screen video signal.
Output to an external display device (not shown) through the
Is forced. As described above, according to the present invention,
Audio packs in a management pack that contains information
Controls text information on audio data and its display time
Place display time control data to include video data
Record data to control video pack and video data
Audio data such as music sources
Mainly from recorded discs, their recorded contents
Can be efficiently displayed.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of an audio signal encoding device applied to the present invention. FIG. 2 is a block diagram illustrating a signal processing circuit of FIG. 1 in detail; FIG. 3 is an explanatory diagram showing a DVD-video format and a DVD-audio format as an embodiment of a disc applied to the present invention. FIG. 4 is an explanatory diagram showing a format of an audio content block unit (ACBU) of FIG. 3; FIG. 5 is an explanatory diagram showing the format of the audio pack and the video pack of FIG. 4 in detail; FIG. 6 shows the audio control (A-CON) of FIG.
FIG. 4 is an explanatory diagram showing the format of a T) pack in detail. FIG. 7 shows the audio character display (A) of FIG.
FIG. 3 is an explanatory diagram showing the format of a (CD) area in detail. FIG. 8 is an explanatory diagram showing an example displayed by the namespace information of FIG. 7; 9 is an explanatory diagram showing a format of an audio search data (ASD) area in FIG. 6 in detail. FIG. 10 is an explanatory diagram showing a modification of the audio content block unit of FIG. 4; FIG. 11 is a block diagram showing a DVD playback device as one embodiment of a disc playback device according to the present invention. FIG. 12 is a block diagram functionally showing the DVD playback device of FIG. 11; FIG. 13 is a flowchart illustrating an AV synchronous reproduction process. FIG. 14 is a flowchart for explaining an AV synchronous reproduction process. FIG. 15 is a block diagram showing the character display circuit of FIGS. 11 and 12 in detail. FIG. 16 is a block diagram showing a modified example of the DVD reproducing device of FIG. FIG. 17 is a block diagram showing another modified example of the DVD reproducing apparatus of FIG. FIG. 18 is an explanatory diagram showing a DVD-Audio format as a second embodiment. FIG. 19 is an explanatory diagram showing a format of an audio content block unit (ACBU) in FIG. 18; FIG. 20 is an explanatory diagram showing a modification of the audio content block unit of FIG. 19; FIG. 21 is an explanatory diagram showing the format of the audio control (A-CONT) pack of FIGS. 18 and 19 in detail. FIG. 22 is an explanatory diagram showing the format of the display (D) pack in FIGS. 18 and 19 in detail. FIG. 23 shows D as a disc reproducing apparatus according to the second embodiment.
FIG. 3 is a block diagram illustrating a VD playback device. FIG. 24 is a block diagram functionally showing the DVD playback device of FIG. 23. FIG. 25 is a flowchart illustrating an AVD synchronous playback process according to the second embodiment. FIG. 26 is a block diagram showing a modification of the DVD playback device of the second embodiment. FIG. 27 is a block diagram showing another modified example of the DVD playback device of the second embodiment. FIG. 28 is a block diagram showing in detail a character display circuit of a fourth embodiment. FIG. 29 is an explanatory diagram showing a recording area of the V-RAM in FIG. 28; [Description of Signs] 1 Disc 2 Reproduction means (drive device) 34 DVD encoding circuit (encoding means) 51 Display time decoder (second decoding means) 52 Start comparator 53 End comparator 54 Character data decoder (First decoding) Means 55 Buffer 56 Display (Constructs character information display means with start comparator 52, end comparator 53, buffer 55) 58 General display control data decoder (second decoding means) 59 Video display processor (Displays character information together with CPU 60) Constituting means) 60 CPU

   ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor Norihiko Fuchigami             3-12 Moriyacho, Kanagawa-ku, Yokohama-shi, Kanagawa             Local Victor Company of Japan F term (reference) 5D044 AB06 BC03 CC06 DE17 DE28                       DE39 DE52 FG10 FG18                 5D077 AA23 CA02 DC03 DC21 HA07                       HC03 HC04 HC25                 5D110 AA15 AA27 AA29 BB01 DA12                       DB05 DC05 FA02 FA06

Claims (1)

1. A disc in which a recording area for an auxiliary signal and a recording area for a main signal are continuously arranged, wherein the recording area for the main signal includes an audio pack including audio data. A character display pack including character information relating to the audio data, display time control data for controlling a display time thereof, and language code data indicating a type of the language, and management including information for managing the audio pack and the character display pack. Audio title set (AT) including an audio pack and a character display pack.
S) for reproducing a disk on which a video pack containing video data and data for controlling the video data are not recorded, wherein the audio pack, the character display pack, Reproducing means for reproducing a pack; and a first means for decoding character information relating to the audio data from a character display pack reproduced by the reproducing means.
Decoding means for decoding display time control data and language code data indicating the type of the language from the character display pack reproduced by the reproduction means; and A disk reproducing apparatus comprising: character information display means for displaying character information based on display time control data decoded by the second decoding means and language code data thereof.