JPH11126367A - Optical information recording medium and optical information recording medium reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable specifying plural musical orders by recording plural kinds of reproduction order specifying information of an optical information recording medium in which information of plural musical pieces or videos or the like and reproduction order specifying information specifying the reproduction order of musical piece information are recorded. SOLUTION: A CPU 308 stores read index information by controlling a servo circuit 3 in order to make a pickup 302 read out index information including the reproduction order specifying information recorded in a TOC area being in the inside of a read-in area. A RAM 311 stores data of the mode 1, the mode (n) and the mode (m) of Q channel codes being in among the reproduction order specifying information in separate areas. Musical orders corresponding to respective modes of the Q channel codes of the reproduction order specifying information read out from the TOC area of an optical information recording medium 301 are made to be displayed on a display panel 309. Then, information of musical pieces are reproduced by specifying the pattern of a prescribed musical order with the program selecting button of an operation part 310.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an optical information recording medium on which a plurality of pieces of music information are recorded, and an optical information recording medium reproducing apparatus for reproducing the optical information recording medium.

[0002]

2. Description of the Related Art Compact Disc (C)
D), Digital Versatile Disc (Digital Versat)
The optical information recording medium on which music or the like is recorded, such as an ile disc (DVD), has a plurality of pieces of music information as its content information and a TOC (Table of Contents) formed on the innermost track of the optical information recording medium. Contents) area, an access data area, an index information area called a navigation data area, etc., information for performing various functions, for example, fast forward, fast rewind, cueing, etc., ie, a song number, a total playing time. , The number of songs, the playing time of each song, and the generation start address of each song.

[0003] In a reproducing apparatus such as a CD player and a DVD player, the index information is used for displaying a song number, displaying a playing time, and selecting a music. Currently, as a general music selection reproduction function mounted on a reproduction apparatus, a standard reproduction function for reproducing according to the order recorded in the index information area of the optical information recording medium, a repeat reproduction function for repeatedly reproducing a favorite music, A scan playback function that plays back the first part of each song for several seconds in order to select a favorite song, a random playback function that plays in an irregular order different from the order of songs recorded on the optical disc, and an order selected by the user There is a program playback function to play with.

[0004]

However, the music reproduction order (hereinafter referred to as "music order") by the above-mentioned music selection reproduction function, except for the standard reproduction function, is a music order according to the user's own preference or a random music order by the reproduction apparatus. Even if the content creator of the optical information recording medium wants to specify a plurality of song orders such as second, third, etc. in addition to the song order (standard playback order) recorded on the optical disc, It was impossible to realize. An object of the present invention is to provide an optical information recording medium and an optical information recording medium reproducing device that solve such a problem.

[0005]

In order to solve the above-mentioned problem, the invention according to claim 1 of the present application provides a method of reproducing information of a plurality of music pieces or videos and reproduction order designation information for designating a reproduction order of the music information. In the recorded optical information recording medium, a plurality of types of the reproduction order designation information are recorded.

According to a second aspect of the present invention, there is provided an optical information recording medium for reproducing an optical information recording medium in which a plurality of pieces of information such as music or video and a plurality of types of reproduction order designation information for designating the order of reproduction of the information are recorded. In the information recording medium reproducing device, a selection unit that selects one of the plurality of types of reproduction order specification information that specifies a reproduction order of the information recorded on the optical information recording medium, and the selection unit An information detecting means for detecting the selected reproduction order designation information, and a reproduction control means for controlling a reproduction order of the information in accordance with the reproduction order designation information detected by the information reading means. It is.

According to a third aspect of the present invention, there is provided the optical information recording medium reproducing apparatus according to the second aspect, further comprising storage means for storing the reproduction order designation information.

According to a fourth aspect of the present invention, there is provided the optical information recording medium reproducing apparatus according to the second or third aspect, further comprising display means for displaying the reproduction order designation information. It is assumed that.

According to the optical information recording medium of the first aspect,
In the index information area of the optical information recording medium, in addition to the reproduction order designation information in which the music order by the standard reproduction is recorded, the music order in which the content creator desires the second, third, etc. is recorded. Since a plurality of pieces of reproduction order designation information are recorded, the content creator can designate a plurality of music order in one optical information recording medium.

According to the optical information recording medium reproducing apparatus of the present invention, a plurality of reproduction order designation information corresponding to a plurality of music order designated by a content creator recorded on an optical disc to be reproduced is provided. The content creator has a function of reading out the playback order designation information corresponding to the song order selected by the user from among them, and controlling playback of the songs in the song order according to the read playback order designation information. The music can be reproduced according to one music order selected by the user from the plurality of music orders.

[0011]

Embodiments of the present invention will be described below. The optical information recording medium of the present invention generally comprises a non-data area formed on the outer circumference of the center hole and a data area formed from the outer circumference of the non-data area to the outermost circumference of the disk (neither is shown). ).

The data area includes an index information area, such as a TOC area, an access data area, or a navigation data area, on the innermost side, on which index information and the like are recorded, and a plurality of pieces of music or video outside the index area. And an information area in which data is recorded. In these areas, information is recorded as a number of pit rows in a spiral or concentric manner around the center hole. The non-data area is an area where no data is recorded.

In the optical information recording medium of the present invention, a plurality of pieces of reproduction order designation information corresponding to a plurality of music piece reproduction orders or video reproduction orders specified by the content creator are recorded in the index information area.

For example, in the information area, M1, M2, M3, M
In the case where four pieces of music or video information are recorded, the index information area includes, as the first reproduction order designation information, the first reproduction order of M1-M2-M3-M4 which is a standard reproduction order (default value). Is recorded. Further, in the index information area, M3-M2-
The second reproduction order of M4 (in this case, information such as the music or video of M1 is not reproduced), and the third reproduction order designation information such as the third reproduction order of M2-M4-M1-M3 as the third reproduction order designation information. A plurality of pieces of reproduction order designation information are recorded.

[0015] The user selects one of the plurality of reproduction orders.
A desired playback order can be selected, and information such as music or video can be played back according to the playback order. That is,
When the first reproduction order is designated among the plurality of reproduction order designation information recorded in the index information area of the optical information recording medium of the present invention, M1-M2-M3 is obtained by the first reproduction order designation information.
The reproduction is performed in the order of -M4, and when the third reproduction order is designated, M2-M4
Reproduction is performed in the order of -M1-M3.

Hereinafter, a case where a CD is used as an embodiment of the optical information recording medium of the present invention will be described. FIG. 1 is a diagram for explaining the contents of subcode data constituting a digital signal sequence obtained by reproducing the optical disc of the present embodiment. One frame of the CD is 588 bits, that is, a frame synchronization signal (24 bits), a subcode (14 bits × 1 symbol), digital audio data and parity (14 bits × 32 symbols), and 3 bits for combining each symbol. × 34. And 1
The frame time is 6/44100 (s). Less than,
For the sake of simplicity, digital audio and parity are used as main data, and 3 bits for combining each symbol are used.
Bits are omitted.

In the figure, reference numeral 101 denotes a frame synchronization signal;
Indicates a subcode, 103 indicates main data, and 104 indicates a frame. As shown in FIG. 1, a reproduced digital signal sequence obtained by reproducing a CD which is an optical information recording medium of the present embodiment is composed of a frame 104 composed of a frame synchronization signal 101, a subcode 102, and main data 103. Are successively formed. Main data 103
Is PCM for digital audio (Pulse
Code Modulation) data.

The sub-code 102 is, as shown in FIG.
Eight channels of P, Q, and R to W are allocated to an area of 8 bits b1 to b8 immediately after the frame synchronization signal 101,
The contents of each channel are completed in 98 frames (1 symbol = 98 frames = 1 section). Subcode 10
2 of each channel (byte number 0,
1) is a subcode synchronization signal S0 common to each channel,
It constitutes S1.

The P channel code stored in the P channel is, for example, a cue signal of the first program area of the music (the area where music information is recorded), and is "1" for the first few seconds of the program area. Otherwise, it is "0" (P code).

FIG. 2 is a diagram for explaining the structure of the Q channel code. In the figure, 201 is control data, 20
2 is Q mode, 203 is Q data, 204 is CRC (Cy
clicRedundancy Code). As shown in FIG. 2, the Q channel code stored in the Q channel includes control data 201 (4 bits, byte numbers 2 to 5), Q mode 202 (4 bits, byte numbers 6 to 9), Q data 20
3 (72 bits, byte numbers 10 to 81), CRC20
4 (16 bits, byte numbers 82 to 97), for a total of 96 bits.

The control signal stored in the control data 201 is, for example, a signal that defines the number of channels of the audio signal and the presence or absence of pre-emphasis.

The 4-bit address signal stored in the Q mode 202 (byte numbers 6 to 9) can take 16 modes. Currently, in the CD standard (IEC908 standard), three modes are as follows. Stipulated. Mode 1 (0001): Track number, time code, etc. Mode 2 (0010): Catalog number of the disc Mode 3 (0011): Digital audio mode

When the Q mode 202 is the mode 1, the following signals (1) to (5) are stored in the Q data 203,
It is represented by a 2-digit BCD (Binary Coded Decimal) code. (1) Number of tracks: number of tracks in a playback disk (8 bits, byte numbers 10 to 17) (2) Index: number of tracks being played (track number) (8 bits, byte numbers 18 to 25) (3) Relative time: playback time (minute, second, frame (1/75 second) display) from the beginning of each track, minute (8 bits, byte numbers 26 to 33), seconds (8 bits, byte numbers 34 to 41), Frame (8 bits, byte number 42
(49) (4) "0": 8 bits, byte number 50 to 57 (5) Total time (absolute time): Total playback time (minutes, seconds, frames (1/75 seconds) from the beginning of the first track Display), minutes (8 bits, byte numbers 58 to 65), seconds (8
Bit, byte numbers 66 to 73), frame (8 bits, byte numbers 74 to 81)

The optical information recording medium reproducing apparatus can display a track number (song number) and time on the display panel and can access an arbitrary track by using the Q channel code as reproduction order designation information. is there.
That is, the position of the pickup is confirmed using the Q channel code reproduced from the TOC area, the number of tracks to be moved to the target track (target music) is calculated, the pickup feed servo is forcibly transmitted, an access operation is performed, and the reproduced Q channel code is To accurately determine the pickup position and perform the next access operation.

In the optical information recording medium of the present embodiment, the reproduction order of the music recorded as the main data is reproduced in a plurality of patterns by using the unused modes other than the modes 1 to 3 of the Q mode. be able to. This will be described in detail below.

For example, the optical information recording medium of this embodiment includes:
It is assumed that five songs having song numbers (track numbers) of M1, M2, M3, M4, and M5 are recorded. Q recorded in the TOC area of the optical information recording medium of this embodiment
In the mode 1 of the Q mode of the channel code, the first music order (the music order in the standard reproduction order (default value)) selected by the content creator is M1, M2, M3, M4, M5.
Are recorded in this order, and when the information is reproduced by the optical information recording medium reproducing apparatus of the present invention described later, the reproduction is performed in the order of the music unless otherwise specified. The reproduction order according to the mode 1 can be reproduced even by a commercially available reproducing apparatus.

Further, the TOC of the optical information recording medium of this embodiment is
In the mode n (n: unused mode number) of the Q mode of the Q channel code recorded in the area, the second music order selected by the content creator is, for example, M2, M
3, M1 and M5 (in the second song order, M4 is regarded as not being recorded), and when reproduced by an optical information recording medium reproducing apparatus of the present invention described later, the mode n is set to If specified, playback is performed in this music order.

Further, the TO of the optical information recording medium of this embodiment is
In the mode m (m: unused mode number) of the Q mode of the Q channel code recorded in the C area, the third music order selected by the content creator is, for example, M5, M
1, M4, M2, and M3 are recorded in this order. When a mode m is designated at the time of reproduction by an optical information recording medium reproducing apparatus of the present invention described later, reproduction is performed in this music order.

As described above, according to the optical information recording medium of the present invention, the content creator can specify the music order of a plurality of patterns. For example, a mode for playing recorded songs in chronological order, a mode for playing only up-tempo songs of recorded songs, a mode for playing only ballad-based songs among recorded songs, and the like. The creator can specify the order of songs having various purposes on one optical information recording medium.

Next, an optical information recording medium reproducing apparatus according to an embodiment of the present invention will be described. FIG. 3 is a diagram showing a configuration of an optical information recording medium reproducing apparatus according to one embodiment of the present invention. In the figure, 301 is an optical information recording medium, 302 is a pickup, 303 is a spindle motor, 304 is a signal processing unit, and 305 is a digital / analog converter (hereinafter referred to as “DA”).
C ". ) And 306 are output units, 307 is a servo circuit, and 308 is a system controller (hereinafter, “CPU”).
And ), 309 is a display panel, 310 is an operation unit, 3
11 is RAM (Random Access Memory), 312 is RO
M (Read Only Memory).

The optical information recording medium 30 mounted on a turntable (not shown) of the optical information recording medium reproducing apparatus of the present embodiment.
Reference numeral 1 denotes a music number and a plurality of pieces of reproduction order designation information (for example, the above-mentioned three music order patterns are recorded in mode 1, mode n, and mode m of the Q mode of the Q channel code). It has a lead-in area including a TOC area, a plurality of music data divided and recorded in a plurality of tracks, a data area having absolute reproduction start time information, and a lead-out area indicating the end of the disc.

The optical information recording medium 301 is rotated by a spindle motor 303, and a signal read from the optical information recording medium 301 by a pickup 302 is subjected to waveform shaping and amplification by a preamplifier (not shown), and then to a signal processing unit 304.
Is input to The signal processing unit 304 performs demodulation, error correction, extraction of a synchronization signal, and the like.

The servo circuit 307 controls an actuator (not shown) in the pickup 302 based on the synchronization signal so that the laser beam emitted from the pickup 302 accurately follows the pit row recorded on the optical information recording medium 301. , A pickup feed motor and a spindle motor 303 are controlled.

The CPU 308 first causes the pickup 302 to read the index information including the reproduction order designation information recorded in the TOC area in the lead-in area.
By controlling the servo circuit 307, the read index information is stored in RA
Record in M311. The RAM 311 is divided into a plurality of storage areas, and the data of the mode 1, the mode n, and the mode m of the Q mode of the Q channel code in the reproduction order designation information are respectively stored in separate areas of the RAM 311. Thereafter, after initial settings and the like are completed, a message indicating that operation is possible is displayed on the display panel 309, and the process waits until an input is made from the operation unit 310.

The CPU 308 controls the optical information recording medium 3
01 of the reproduction order designation information read from the TOC area 01
The order of music corresponding to each mode of the Q mode of the channel code is displayed on the display panel 309. For example, a program display section is provided on the display panel 309, and when there are three pieces of reproduction order designation information (corresponding to the above-described modes 1, 2, and 3 of the Q mode), there may be programs 1 to 3 as the music order. Is displayed. Then, when the user wants to know the music order of the program 2 (corresponding to the mode 2), the music order corresponding to the program 2 can be displayed by pressing a program display button of the operation unit 310 described later.

The operation unit 310 includes a play button, a stop button, a pause button, a fast forward button, a fast rewind button, and the like (not shown) in addition to the program display button. .)
have. The user can use the program selection button
The music order (one of the patterns of mode 1, mode n, and mode m) specified by the content creator of the optical information recording medium 301 (displayed on the disc jacket or the like) is selected.

When a pattern in a predetermined music order (for example, a pattern specified in mode n) is specified by the program selection button of the operation unit 310, the CPU 308
The data of the mode n of the Q mode of the Q channel code in the reproduction order designation information recorded in the step 11 is read, and the absolute reproduction start time corresponding to the first music number (track number) designated in the mode n is checked.

Further, the CPU 308 reads the data corresponding to the jump distance in the radial direction of the disc and the reproduction start time set in the ROM 312 in advance, and based on the search information, the data necessary for the absolute reproduction start time of the designated track number. The jump distance is calculated, and the pickup 302 is moved in the radial direction through the servo circuit 307. Then, the signal processing unit 304 checks the reproduction start absolute time information of the read track, and if the information coincides with the search time, terminates the search operation and reproduces the music data recorded on the track.

The music data read by the pickup 302 is demodulated and error-corrected by a signal processing unit 304, converted from a digital signal to an analog signal by a DAC 305, and output from an output unit 306.

Then, by the same operation as the above-mentioned operation, the music pieces (tracks) are successively reproduced in the order specified in the mode n.

Also, when the user selects the music order designated as mode 1 or mode m by the program selection button of the operation unit 310, the reproduction is performed by the same operation as the case of reproducing the mode n described above. .

[0042]

According to the optical information recording medium of the present invention, in addition to the reproduction order designation information in which the song numbers in the order of the standard reproduction are recorded in the index information area of the optical disc, the content creator can Since a plurality of pieces of playback order designation information in which a desired song number, such as a second, third, etc., is recorded, are recorded, the content creator can designate a plurality of playback orders on one optical disc. it can.

According to the optical information recording medium reproducing apparatus of the present invention, a plurality of reproduction orders corresponding to a plurality of reproduction orders specified by a content creator recorded on an optical disc to be reproduced are provided. It has a function of detecting playback order designation information corresponding to the playback order selected by the user from the designated information, and controlling to play back music or video in an order according to the detected playback order designation information. Therefore, music can be reproduced in one reproduction order selected by the user from a plurality of reproduction orders specified by the content creator.

[Brief description of the drawings]

FIG. 1 is a diagram for explaining the contents of subcode data constituting a digital signal sequence obtained by reproducing an optical disc according to an embodiment.

FIG. 2 is a diagram for explaining a configuration of a Q channel code.

FIG. 3 is a diagram showing a configuration of an optical information recording medium reproducing device according to an embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 101 Frame synchronization signal 102 Subcode 103 Main data 104 Frame 201 Control data 202 Q mode 203 Q data 204 CRC 301 Optical information recording medium 302 Pickup 303 Spindle motor 304 Signal processing unit 305 Digital / analog converter (DAC) 306 Output unit 307 Servo circuit 308 System controller (CPU) 309 Display panel 310 Operation unit 311 RAM (Random Access Memory) 312 ROM (Read Only Memory)

Claims (4)

[Claims] 1. An optical information recording medium in which information such as a plurality of pieces of music or video and playback order designation information for designating a playback order of the information are recorded, wherein a plurality of types of the playback order designation information are recorded. Characteristic optical information recording medium. 2. An optical information recording medium reproducing apparatus for reproducing an optical information recording medium on which a plurality of pieces of information such as music or video and a plurality of types of reproduction order designation information for designating a reproduction order of the information are recorded. Selecting means for selecting one of a plurality of types of reproducing order specifying information for specifying a reproducing order of the information recorded on the optical information recording medium; and the reproducing order specifying information selected by the selecting means An optical information recording medium reproducing apparatus comprising: an information reading unit that reads information; and a reproduction control unit that controls a reproduction order of the information in accordance with the reproduction order designation information read by the information reading unit. 3. An optical information recording medium reproducing apparatus according to claim 2, further comprising storage means for storing said reproduction order designation information. 4. An optical information recording medium reproducing apparatus according to claim 2, further comprising a display means for displaying said reproduction order designation information.