JPH1166822A - Disk recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk recording and reproducing device which is capable of making recording in a prescribed region, automatically forms a disk name or track name and records the same in the prescribed region. SOLUTION: The track name is formed by adding the date and time data from a built-in timepiece to the already inputted disk name or the fixed pattern (data) already possessed by a ROM and is recorded on a disk. The track name is otherwise formed by adding the track number data of the track recorded on the disk in place of the date and time data. The track name of Fig. (3) is formed by adding the date and time data from the built-in timepiece to the fixed pattern (data) already possessed by the ROM. The disk name is formed by adding the variable data (disk number data) written into a nonvolatile memory in place of the date and time data and the contents of the variable data recorded in the nonvolatile memory is updated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a recording / reproducing apparatus for recording / reproducing information signals on a recording medium such as a magneto-optical disk in track units.

[0002]

2. Description of the Related Art As an apparatus as described above, there is, for example, an MD (mini disk) apparatus. The MD device records an audio signal in a digital format on a rewritable magneto-optical disk, and converts the digitized audio signal into an ATRAC (Adaptive Tran).
The data is compressed by a high-efficiency encoding process called "form Acoustic Coding" and magneto-optically recorded on the magneto-optical disk.

[0003]

Conventionally, in an MD device,
While converting the audio signal into a digital signal and recording it,
Track address information, text information, and the like are recorded in a fixed recording area (UTOC area) together with other subcode signals. Here, text information such as a disc name and a track name is recorded on a disc by a user inputting using an operation key or the like. For this reason, there is a problem that even if the information is recorded, unless the text information is input, the contents of the disk or track cannot be known unless the contents are recorded and what the contents are.

[0004]

According to the present invention, an information signal such as an audio signal is converted into a digital signal and recorded on a disk, and at the same time, the disk name and the address information of the recorded track are recorded. It is an object of the present invention to provide a disk recording / reproducing apparatus capable of recording text information or the like in a predetermined area and automatically generating the disk name or track name and recording the same in the predetermined area.

According to the present invention, a disk name already recorded in the predetermined area or data obtained by adding date and time data to predetermined disk name data is automatically generated as a track name. It is intended to provide a disk recording / reproducing apparatus for recording.

Further, in the present invention, a disc name already recorded in the predetermined area or a piece of data obtained by adding track number data to predetermined disc name data is automatically generated as a track name. And a disk recording / reproducing apparatus for recording the information on a disc.

Further, according to the present invention, there is provided a disk recording / reproducing apparatus which automatically generates a disk name obtained by adding date and time data to predetermined disk name data as a disk name and records the disk name in the predetermined area. is there.

Further, according to the present invention, a disc name obtained by adding disc number data recorded in a non-volatile memory to predetermined disc name data is automatically generated as a disc name and recorded in the predetermined area. It is an object of the present invention to provide a disk recording / reproducing apparatus that updates the disk number data and stores the updated data in a nonvolatile memory.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. First, FIG. 1 shows a circuit block diagram of an MD device to which the present invention is applied. 1, reference numeral 1 denotes an input terminal to which an information signal such as an analog audio signal is input, 2 denotes an A / D conversion circuit for converting the information signal input from the input terminal 1 into a digital signal, and 3 denotes an A / D converter. An ATRAC encoder circuit for compressing the digital information signal output from the circuit 2 and converting it into a highly efficient encoded digital signal; and 4, a CD for converting the digital signal output from the ATRAC encoder circuit 3 into an MD format.
A ROM encoder circuit 5, an EFM / ACIRC encoder circuit for interleaving the information signal converted by the CD-ROM encoder circuit 4, adding an error correction code, and further converting the digital signal to a sub-code signal; RF amplifier for recording, EFM / ACIRC
A magnetic head 8 for recording an output signal from the encoder circuit 5
Is converted into a signal to be recorded on the disk 10.

Reference numeral 7 denotes a shock proof memory circuit for temporarily storing a compressed digital signal, and reference numeral 9 denotes an MD laser pickup for heating the disk surface to the Curie temperature during recording and reading a pit signal during reproduction. And one
Reference numeral 1 denotes a reproduction RF amplifier and an ADIP demodulation circuit for amplifying a signal read from the laser pickup 9 during reproduction;
Reference numeral 12 denotes an EFM / ACIRC decoder circuit for performing processing such as error correction on a signal output from the reproduction RF amplifier 11, and reference numeral 13 denotes a CD for converting an MD format signal error-corrected by the EFM / ACIRC decoder circuit 12 into a digital signal. -ROM decoder circuit, 14 is CD-ROM
An ATRAC decoder circuit for expanding the signal processed by the decoder circuit 13 and returning it to an original digital signal, a D / A converter circuit 15 for converting a digital signal into an original analog signal, and an output terminal 16 for a demodulated analog signal It is.

Further, 17 is a spindle motor for rotating the disk 10, 18 is a sled motor for driving the MD laser pickup to the inner and outer circumferences of the disk 10, and 19 is a motor control for controlling the spindle motor 17 and the sled motor 18. Circuit. Reference numeral 20 denotes a control circuit for controlling the entire MD apparatus. The control circuit 20 controls the motor control circuit 19 for the spindle motor 17 and the sled motor 18, and also receives information from a key input terminal 21, a mechanical switch input terminal 22, and the like. The processing of the mechanism and the like and the processing of the subcode data are performed, and the ATRAC encoder circuit 3, CD-ROM encoder circuit 4, shock-proof memory circuit 7, CD
-ROM decoder circuit 13, ATRAC decoder circuit 1
4 and controls the built-in clock 23, reads out fixed pattern data stored in the ROM 24 in advance, and controls the nonvolatile memory 25. The control circuit 20 is configured by a system controller using a microcomputer.

When the disk 10 is set to the recording mode by an operation key signal from the key input terminal 21 and a mechanism detection signal input to the mechanical switch input terminal 22,
Based on the control of the control circuit 20, the MD laser pickup 9 emits light, focuses on the reflecting surface of the disk 10,
Focus is applied on the disk surface. In the disk 10 to be recorded, a sampling frequency (F
(s = 44.1 kHz), so that the ADIP signal is demodulated.

At this time, the spindle motor 17 is rotated,
Spindle servo is applied by EFM signal or ADIP signal. The tracking servo and the thread servo are also applied by the sub-beam of the laser pickup 9. Then, based on the ADIP address, the disk is heated to the Curie temperature by the laser pickup 9 and recorded by the magnetic head 8.

A signal to be recorded is converted from a signal input from an input terminal 1 into a digital signal by an A / D conversion circuit 2, further compressed by an ATRAC encoder circuit 3 and interleaved by a circuit 5. The error correction code is added, time control is performed by the memory circuit 7, and further, the sub-code information such as address information to be recorded generated by the control circuit 20 is sent to the RF recording amplifier 6 and recorded.

On the other hand, when the reproduction mode is set, the laser pickup 9 emits light under the control of the control circuit 20 to focus on the reflection surface of the disk 10 and focus on the disk surface. Further, the spindle motor 17 is rotated, and the spindle servo is applied by the EFM signal or the ADIP signal. At this time, tracking servo and thread servo are also applied by the sub-beam of the MD laser pickup 9.

The signal recorded by the MD laser pickup 9 is read, and the read RF amplifier and the AD
It is sent to the IP demodulation circuit 11, sent to the EFM / ACIRC decoder circuit 12, performs processing such as error correction and deinterleave, performs format conversion in the CD-ROM decoder circuit 13, and performs time control using the memory circuit 7. Then, the signal is expanded into an original digital signal by an ATRAC decoder circuit 14, converted into an original analog signal by a D / A conversion circuit 15, and output from an output terminal 16.

Further, as shown in FIG. 2, the recording disk 10 has a lead-in area 26 in which data is recorded in the same pits as the CD-DA, and an actual recordable and wobbled groove-like shape. UTOC area 2
7, a program area 28, and a lead-out area 29. Data such as an audio signal is recorded in the program area 28, and track address information and text information are recorded in the UTOC area 27.

As described above, when text information such as a disc name and a track name is added to an MD disc on which music data and the like are recorded, conventionally, it is necessary to input necessary data using an external key. there were. Therefore, in the present invention, the control circuit 20 automatically generates a disk name and a track name in accordance with a predetermined rule even if the user does not input text data each time using an external operation key. Then, the data is written in the UTOC portion of the shock proof memory 7 and then recorded in the UTOC area 27 of the disk together with other UTOC data.

[Example 1] Automatic generation of track name As a method of automatically generating a track name, a disk name is input if a disk name has already been input, or a fixed pattern (data) previously stored in the ROM 24 by the control circuit 20.
Then, date and time data from the built-in clock 23 are added to the data to generate the data as shown in FIG. The date and time data uses the time at the start of recording of each track.

[Example 2] Automatic generation of track names Alternatively, in the above-mentioned example (1), track number data of a track recorded on a disc is added instead of date and time data, and as shown in FIG. To be generated.

[Example 3] Automatic generation of disk name As a method of automatically generating a disk name, the control circuit 20
Has a fixed pattern (data) that the ROM 24 has,
The date and time data from the internal clock is added to generate the data as shown in (3) of FIG.

Example 4 Automatic Generation of Disk Name Alternatively, in the above example (3), variable data (disk number data) written in the non-volatile memory 25 is added instead of the date and time data. (4). In this case, after generating the disk name, the contents of the variable data recorded in the nonvolatile memory are updated. Therefore, if recording is performed with another disc mounted, "DISC-2" is used in this example. If the user resets the contents of the variable data before recording on the new disk, the contents of the variable data recorded in the nonvolatile memory return to "DISC-1".

[0023]

As described above, according to the present invention, an information signal such as an audio signal is converted into a digital signal and recorded on a disk, and at the same time, the disk name and the address information and text information of the recorded track are recorded. In a disc recording / reproducing apparatus capable of recording a disc or a track in a predetermined area, the disc name or the track name is automatically generated and recorded in the predetermined area. You will be able to understand what it is without even asking the content.

[Brief description of the drawings]

FIG. 1 is a circuit block diagram showing a configuration of a device of the present invention.

FIG. 2 is a diagram showing a configuration of a recording disk.

FIG. 3 is a diagram showing an example of a track name and a disc name.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Input terminal 2 A / D conversion circuit 3 ATRAC encoder circuit 4 CD-ROM encoder circuit 5 EFM / ACIRC encoder circuit 6 RF amplifier for recording 7 Shock proof memory circuit 8 Magnetic head for recording 9 Laser pickup for MD 10 Disk 11 For reproduction RF amplifier 12 EFM / ACIRC decoder circuit 13 CD-ROM decoder circuit 14 ATRAC decoder circuit 15 D / A conversion circuit 16 output terminal 17 spindle motor 18 thread motor 19 motor control circuit 20 control circuit 21 key input terminal 22 mechanical switch input terminal 23 Built-in clock 24 ROM 25 Non-volatile memory 26 Lead-in area 27 UTOC area 28 Program area 29 Lead-out area

Claims (5)

[Claims] 1. A disk recording / reproducing apparatus capable of converting an information signal such as an audio signal into a digital signal and recording the digital signal on a disk, and recording a disk name and address information and text information of a recorded track in a predetermined area. ,
A disc recording / reproducing apparatus characterized in that the disc name or track name is automatically generated and recorded in the predetermined area. 2. A method of automatically generating, as a track name, a disk name already recorded in the predetermined area or a data obtained by adding date and time data to predetermined disk name data, and recording the data in the predetermined area. 2. The disk recording / reproducing apparatus according to claim 1, wherein: 3. A disc name already recorded in the predetermined area or a disc name data obtained by adding track number data to predetermined disc name data is automatically generated as a track name and recorded in the predetermined area. 2. The disk recording / reproducing apparatus according to claim 1, wherein: 4. The disk recording / reproducing apparatus according to claim 1, wherein a data obtained by adding date and time data to predetermined disk name data is automatically generated as a disk name and recorded in the predetermined area. . 5. A method in which predetermined disk name data to which disk number data recorded in a non-volatile memory is added is automatically generated as a disk name, and the disk name is recorded in the predetermined area. 2. The method according to claim 1, wherein the data is updated and stored in a nonvolatile memory.
Disc recording / reproducing apparatus according to the above.