JPH0785637A - Disk device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a disc device capable of editing information recorded on a disc and reproducing based on the editing. [Structure] Optical pickup 12 for reading information data and TOC recorded on a disc in response to a read control signal
And a signal processing unit 20 for extracting TOC, generating information edit data from information data according to a signal control signal, converting the information edit data into an audio signal and outputting the audio signal, a data input unit 14 for inputting the edit data, and an edit data. And a TOC stored in the RAM 30 and a TOC corresponding to the disc being played back and a RAM 30 storing the TOC of the disc to be edited data.
Comparator 15 which compares C with each other and sends out a coincidence signal indicating the same, and edit data corresponding to the same TOC stored in RAM 30 in response to the coincidence signal are read out and based on the edit data. It has a CPU 16 for sending a read control signal and a signal control signal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc device for recording or reproducing a disc carrying information.

[0002]

2. Description of the Related Art Conventionally, as such a disc device, a CD player for reproducing information recorded on a compact disc (hereinafter, simply referred to as a CD) has been known, but in recent years, a more compact mini disc player has been known. MD players that reproduce discs (hereinafter, simply referred to as MD) and that are excellent in operability and simplicity are becoming popular in the future.

As the MD player, a reproduction-only player that only reproduces the information recorded in the MD, and a recording / reproduction player that not only reproduces the information recorded in the MD but also has a recording function for recording the information There are two types: a player (hereinafter, simply referred to as a recording / playback player).

Further, the M used in these MD players
Similarly, in D, a read-only disc that is an optical disc that only supports reproduction, and a recording / reproducing disc that is a magneto-optical disc that is capable of recording and rewriting information as well as reproduction (hereinafter simply referred to as a recording / reproducing disc). ) And two types.

The reproduction-only disc has T related contents such as an album name, an artist name, a record number, a total playing time and a playing time of each song as information unique to the disc.
OC (Table of Contents) is recorded. The lead-in area, which is the TOC area, has already been standardized and is not open to users.

In addition, the pre-recording / reproducing disk has the TO
In addition to C, a user TOC (hereinafter simply referred to as UTOC) area is provided as a TOC that can be recorded on the user side.

Now, the conventional reproduction-only player will be described. The reproduction-only player is the information recorded on the reproduction-only disc or the recording / reproduction disc, that is, the TOC.
And an optical pickup that optically reads information data that is voice data such as music, a signal processing unit that extracts the TOC read by the optical pickup, processes the information data, and outputs the signal. It has a RAM for temporarily storing the generated TOC and a CPU for controlling the entire player for reproduction.

Now, a normal reproduction operation performed by the reproduction-only player will be described with reference to FIG. FIG. 5 is a flowchart showing the processing operation of the CPU in the reproduction operation of this reproduction-only player.

In FIG. 5, the optical pickup causes the TOC recorded on the read-only disc or the recording / reproducing disc carrying information data to be read (step S21), and the signal processing section to extract the read TOC. The extracted TOC is stored in the RAM (step S22). Next, the signal processing section is caused to reproduce the information data based on the TOC stored in the RAM (step S23).

According to this reproduction-only player, when reproducing the reproduction-only disc or the recording / reproducing disc, the user inputs an instruction to perform a program performance for designating a reproduction order for each song in the information data. By doing so, it is possible to perform a program performance of reproducing the disc in the reproduction order of the music designated according to the designated input program and the TOC.

A prerecording / replaying player is required when performing an edit different from the program performance, for example, when performing an edit by dividing or connecting at an arbitrary position in the song.

To this recording / playback player, edit data for instructing editing different from the above-mentioned performance program is input,
This input edit data is used as the UT
There was a function to make OC record.

According to this recording / reproducing player, when reproducing the recording / reproducing disc on which the editing data is recorded, the editing data recorded on the UTOC of the recording / reproducing disc is read, and the read-out disc is read. Disc playback can be performed based on the edited data.

[0014]

However, according to the above-mentioned conventional disc device, not only the CD player but also the reproduction-only disc or the recording / reproducing disc in the reproduction-only player of the MD player is reproduced or recorded. When the reproduction-only disc is reproduced by the reproduction player, there is a problem that it is impossible to perform editing such as division or connection at an arbitrary position in the music.

The present invention has been made in view of the above problems, and an object of the present invention is to perform editing on information recorded on a disc and to perform reproduction based on this editing. To provide a disk device.

[0016]

In order to achieve the above object, the invention according to claim 1 is a reading means for reading information data and identification information recorded on a disc in response to a reading control signal, and the identification information. Along with extracting, generating information edit data from the information data according to the signal control signal,
A signal processing means for converting the information editing data into an audio signal and outputting the audio signal, an operating means for inputting the editing data, and a memory for storing the input editing data and identification information of a disc which is a target of the editing data. Means for comparing the identification information corresponding to the disc being reproduced and the identification information for the edit data stored in the storage means, and transmitting a coincidence signal indicating the same, Accordingly, the control means reads out the edit data corresponding to the same identification information stored in the storage means and sends the read control signal and the signal control signal based on the edit data.

According to a second aspect of the present invention, the edit data according to the first aspect is data for instructing split and link edit, split edit or link edit at any position in the information data recorded on the disc. is there.

[0018]

With this structure, according to the disc device of the present invention, the edit data input by the operating means is stored in the storage means. Therefore, even if the disc device is a reproduction-only player, Alternatively, even if the target disc is a reproduction-only disc, the disc can be reproduced based on the high-level editing data desired by the user.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A disk device of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an outline of a reproduction-only player to which the disc device of the present invention is applied.

In FIG. 1, the reproduction-only player is a reading means for optically reading the information data recorded on the reproduction-only disc and the TOC, which is the unique identification information, according to the read control signal and converting the information data into a high frequency signal. The optical pickup 12 and the TOC are extracted, and at the same time, the information data is subjected to signal processing in accordance with a signal control signal to generate information editing data, and the signal processing unit 20 is a signal processing means for outputting the information editing data. And a D / A converter 1 for converting a digital audio signal output from the signal processing unit 20 into an analog signal and outputting the analog signal to an audio output unit (not shown).
3, a data input section 14 which is an operation means for inputting edit data, a RAM 30 which is a storage means for storing the input edit data and the TOC of a disc which is a target of the edit data, and a disc being reproduced. TOC corresponding to
And the TOC relating to the edit data stored in the RAM 30
And a comparator 15, which is a comparing means for sending out a coincidence signal indicating that they are the same, and a mechanical control unit 40 for controlling the operation of the mechanical mechanism in the entire reproduction-only player.
And controlling the entire player exclusively for reproduction, reading the edit data corresponding to the same TOC stored in the RAM 30 in response to the coincidence signal, and controlling the read control signal and the signal based on the edit data. It has a CPU 16 which is a control means for transmitting a signal.

The signal processing section 20 amplifies the high frequency signal read by the optical pickup 12 and
RF amplifier 2 that shapes the waveform and sends it as a digital signal
1, an EFM decoder 22 that demodulates an output signal from the RF amplifier 21 into 8-bit data from 14-bit data, supplies TOC by extracting TOC from the 8-bit data, and the EFM decoder 22.
The memory controller 24 that stores the 8-bit data (compressed data) input by the dynamic RAM (hereinafter, simply referred to as DRAM) 23 and calls and outputs the compressed data stored in the DRAM 23.
And a voice expansion decoder 25 for expanding the compressed data output from the memory controller 24 on the time axis.

The audio decompression decoder 25 is an ATRAC (Adaptive Transform) which is a feature of MD players.
Acoustic Coding) system is adopted, and the memory controller 24 is 1.4M from the optical pickup 12
The compressed data transferred at bit / sec is stored in the DRAM 23. The audio decoder 25 is the DRAM 2
The compressed data stored in the memory controller 3
The data rate is expanded to a transfer rate of 0.3 Mbit / sec via D4 and the expanded information data is supplied to the D / A converter 13.

Further, the mechanical control section 40 includes a spin doll motor 41 for rotating the disk 11 mounted on the turntable, a feed motor 42 for moving the optical pickup 12 in the radial direction of the disk, and a mechanical control for this. The servo control circuit 43 controls the entire unit 40.

In the RAM 30, the edit data memory area 31 for storing the edit data input by the data input unit 14, and the optical pickup 1 are provided.
2 has a TOC memory area 32 for temporarily storing the TOC read in 2.

Next, the operation of this reproduction-only player will be described. FIG. 2 shows the track No. of the song recorded on the read-only disc. It is a figure which shows some music and an address. FIG. 3 is a memory map showing a part of the edit data memory area 31 of the RAM 30.

In this case, the user-desired editing data for the reproduction-only disc 11 in this reproduction-only player, for example, the data to be instructed when the portions shown by hatching in FIG. The operation of storing will be described.

TOC memory area 32 of the RAM 30
When editing the TOC disc stored in, the data input section 14 is operated by the user to input an arbitrary position in the music, A (a1 to a2), as shown in FIG.
B (b1 to b2) and C (c1 to c2) are selected, and the address numbers corresponding to these selected arbitrary positions are supplied to the CPU 16 as edit data. This CPU16
Is the TOC stored in the RAM 30 as shown in FIG.
Is stored in the edit data memory area 31 of the RAM 30, and the edit data input by the data input unit 14 is stored in the memory area corresponding to the stored record number.

Next, the operation when the read-only player storing the edited data plays back the read-only disc 11 will be described with reference to the flowchart of FIG. 4 shows this CPU 16
6 is a flowchart showing the processing operation of FIG.

As described above, the optical pickup 1
In step 2, the TOC recorded on the read-only disc 11 is read (step S11), and the read TOC is read.
On the other hand, the signal processing unit 20 applies signal processing to the C
Supply to PU16. The CPU 16 temporarily stores the currently read TOC in the TOC memory area 32 of the RAM 30 (step S12).

Next, the CPU 16 retrieves the record number stored in the edit data memory area 31 and retrieves the retrieved record number and the TOC record number stored in the TOC memory area 32. It is supplied to the comparator 15 (step S13). This comparator 15
Is detected by comparing the record number of the TOC currently read with the record number stored in the edit data memory area 31 (step S14), and if they are the same, a coincidence signal is supplied to the CPU 16. When there are a plurality of record numbers stored in the edit data memory area 31 of the RAM 30, the currently read record number and all the record numbers stored in the edit data memory area 31 are described above. It is assumed that the comparator 15 performs comparison detection.

The CPU 16 reads the edit data corresponding to the same record number from the edit data memory area 31 of the RAM 30 in response to the coincidence signal (step S15), and based on the read edit data. A read control signal for controlling the mechanical control unit 40 is supplied to the servo control circuit 43, and a signal control signal for controlling the signal processing unit 20 is supplied to the memory controller 24 (step S16).

At this time, since the ATRAC system is adopted, the information data read based on the edit data instructing the connection at the arbitrary position is stored in the DRAM 23 at the transfer rate of 1.4 Mbit / sec. , This DRA
The information data stored in M23 is expanded by the audio expansion decoder 25 at a transfer rate of 0.3 Mbit / sec and D
Since the data is sent to the A / A converter 13, the DRAM 2
The time required for writing the information data to 3 is about one fifth of the time required for reading, and the remaining time can be spent for the access based on the edit data, so that sound interruption does not occur during reproduction.

Further, in step S14, the comparator 15
Is not able to detect the same record number, the CPU 16 sends each read control signal and signal control signal to the servo control circuit based on the TOC stored in the TOC memory area 32 of the RAM 30. 43 and the memory controller 24 (step S1)
7).

According to the above-mentioned embodiment, the editing data inputted by the data input unit 14, for example, the data for instructing the editing by dividing or concatenating at an arbitrary position in the music is stored in the R
Since the data is stored in the edit data memory area 31 of the AM 30, even if this disk device is a read-only player, or if the target disk is not only a recording / playback disk but also a read-only disk, It is possible to play the disc without sound break based on the advanced editing data desired by the user.

For the sake of convenience, the reproduction-only player of the above-described embodiment has been described with respect to the editing of the reproduction-only disc, but it goes without saying that the same effect can be obtained with respect to the editing of the information data recorded on the recording / reproducing disc. .

Further, in the above-described embodiment, the description has been made by applying to the reproduction-only player of the MD player, but if it is applied to the recording / reproducing player, the information data recorded on the reproduction-only disc can be edited. it can.

In the above embodiment, the comparator 1
Although the comparison target of No. 5 is the record number in the TOC, it goes without saying that other information may be used.

[0038]

According to the disk device of the present invention having the above-mentioned structure, the reading means for reading the information data and the identification information recorded on the disk in response to the reading control signal, the identification information is extracted, and the signal is outputted. A signal processing means for generating information edit data from the information data according to a control signal, converting the information edit data into a voice signal and outputting it, an operation means for inputting the edit data, and the input edit data. The storage unit that stores the identification information of the disc that is the target of the edited data is the same as the identification information that corresponds to the disc that is being reproduced and the identification information that is related to the edited data that is stored in the storage unit. Comparing means for transmitting a coincidence signal indicating that, and edit data corresponding to the same identification information stored in the storage means in response to the coincidence signal is read, And a control means for sending the read control signal and a signal control signal based on the editing data.

Therefore, according to the disk device of the present invention,
Since the editing data input by the operating means is stored in the storage means, whether the disc device is a reproduction-only player or the target disc is a reproduction-only disc, the altitude desired by the user is set. It is possible to reproduce a disc based on various edited data.

[Brief description of drawings]

FIG. 1 is a block diagram showing an outline of a reproduction-only player to which a disc device of the present invention is applied.

FIG. 2 Track N of a song recorded on a read-only disc
o. And part of the song and address

FIG. 3 is a memory map showing a part of a RAM edit data memory area.

FIG. 4 is a flowchart showing a processing operation of a CPU at the time of disc reproduction in a reproduction-only player to which the disc device of the present invention is applied.

FIG. 5 is a flowchart showing the processing operation of the CPU during disk reproduction in the conventional reproduction-only player.

[Explanation of symbols]

 Reference Signs List 11 playback-only disk (disk) 12 optical pickup (reading means) 14 data input section (operating means) 15 comparator (comparison means) 16 CPU (control means) 20 signal processing section (signal processing means) 30 RAM (storage means)

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location G11B 27/10 A 8224-5D 8224-5D G11B 27/10 A

Claims (2)

[Claims] 1. A reading means for reading information data and identification information recorded on a disc in response to a read control signal, and extracting the identification information, and generating information edit data from the information data in response to a signal control signal. Then, the signal processing means for converting the information editing data into an audio signal and outputting the same, the operating means for inputting the editing data, the input editing data and the identification information of the disc which is the target of the editing data are stored. And a comparing means for comparing the identification information corresponding to the disc being reproduced with the identification information for the edit data stored in the storage means and transmitting a coincidence signal indicating the same, The edit data corresponding to the same identification information stored in the storage means in response to the signal is read, and the read control signal and the signal based on the edit data are read. A disk device comprising: a control unit that sends out a control signal. 2. The editing data is data for instructing division and concatenation editing, division editing or concatenation editing at an arbitrary position in the information data recorded on the disc. The disk device described.