JP3499386B2 - Disk recording device - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a mini disk (M
The present invention relates to a disk recording device such as D), and particularly to track creation and editing at the time of recording.

[0002]

2. Description of the Related Art Conventionally, for example, when digitally recording audio data of a compact disc (CD) on a recordable disc such as a recordable disc or a hybrid disc (a type of disc of a mini disc (MD)), the disc of the CD side is recorded. TrNO. (Track number) = n
(N is an integer) Tr (track) is monitored for judgment of Tr No. = n + m (m is an integer) Q code interrupt may cause extra minute time Tr to be recorded in MD. It is not preferable because the number of CD reproduction tracks recognized by the CD and the number of tracks actually recorded in the MD are different.

For example, if the playback side of a CD is operated so as to play back only TrNO. = 3, then TrNO. = 4 of the CD is played.
Even the data at the head of the player will be played back. The reason is as follows. That is, as shown in FIG.
In the index that is the time data of Tr recorded in the TOC information of D, the start position time of each TrNO. Is the position of index01. Therefore, the end time of each TNO is not known from this data. (Final TrN
I understand O. ) The CD player is a QN TrN
Recognizing that O. has moved up, Tr of the CD being played
It is judged that No. has ended. Therefore, FIG.
As shown in (B), at the end of the data of the music piece of TrNO. = 3, the data of the music piece of TrNO.

FIG. 6 is a schematic diagram for explaining the state of recording from such a conventional CD to MD. In FIG.
When performing program recording of CD data to MD,
For example, the program is TrNO.
When setting to 1, 3, 6, 9 and starting recording to MD,
The data sent from the CD to the MD is the TrNO. 2, which is not set after each TrNO.
It includes data of 4, 7, and 10 and becomes as shown in FIG. Therefore, when the transmission data of FIG. 6 (A) is recorded on the MD, the TrNO.
Also, TrNO. Of UTOC of MD is assigned to C as shown in FIG. 6 (B), and C recognized by the user.
This means that the number of D reproduction tracks = 4 and the number of tracks actually recorded on the MD = 8 are different.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to edit or record extra tracks created (or about to be created) in a portion not intended by the user in a direction not counted as one independent track. It is to provide a disc recording device capable of performing the above.

[0006]

DISCLOSURE OF THE INVENTION A disc recording apparatus according to the present invention, when a track shorter than a predetermined time is created during signal recording on a disc or at the end of recording,
It is provided with a deleting means for automatically deleting the track.

Further, the disk recording apparatus according to the present invention is
When a track shorter than a predetermined time is created during recording of a signal on a disk or at the end of recording, the track is provided with a connecting means for automatically connecting the track to the track immediately before or immediately after.

Further, the disk recording apparatus according to the present invention is
The disc is a mini disc.

[0009]

Operation: For example, digital audio data of CD is transferred to MD
At the time of recording, when a track shorter than a predetermined time is created during recording or at the end of recording, the track is automatically deleted or automatically joined to the track immediately before or immediately after. Therefore, the number of reproduction tracks of the CD recognized by the user matches the number of tracks actually recorded in the MD.

[0010]

1 is a block diagram of an MD recording / reproducing apparatus showing an embodiment of a disk recording apparatus of the present invention. In FIG. 1, 1 is an RF matrix amplifier, 2 is a servo, EFM / ACIRC encoder / decoder, 3 is an ATRAC encoder / decoder, 4 is a DRAM memory, 5 is a system controller, 6 is a memory, 7 is a key matrix, and 8 is A display, 9 is a digital / analog converter (DAC), 10 is an analog / digital converter (ADC), and 15 is an optical pickup assembly.

The RF matrix amplifier 1 processes an RF signal and a servo signal used for MD recording and reproduction. This R
The F matrix amplifier 1 is an optical pickup assembly 1
5, focus error signal and tracking error signal necessary for focus and tracking control, and ADIP which is address information of the recordable MD recording area.
The FM modulated signal of is output to the servo and EFM / ACIRC encoder / decoder 2. In addition, the APC that keeps the amount of laser light emitted from the optical pickup assembly 15 constant
The circuit is included.

Servo, EFM / ACIRC encoder
The servo control unit in the decoder 2 receives the focus error signal and the tracking error signal of the optical pickup from the RF matrix amplifier 1, extracts the focus servo and the tracking servo of the optical pickup, and further extracts the motor control servo signal and the address information from the ADIP signal, It controls the feed mechanism of the optical pickup assembly 15 and the rotation control of the disc. EFM
At the time of encoding, the / ACIRC encoder / decoder unit adds an error correction code to the analog audio input signal 12 or the digital audio input signal 14 digitally converted by the ADC 10 encoded by the ATRAC encoder / decoder 3 using ACIRC, It is EFM-modulated and output to the RF matrix amplifier 1. Further, at the time of decoding, the EFM signal input from the RF matrix amplifier 1 is EFM demodulated, error correction is performed by ACIRC, and the result is output to the ATRAC encoder / decoder 3. This signal is ATRAC decoded and converted into a digital audio output 13 or an analog audio output 11 by the DAC 9.

The ATRAC encoder / decoder 3 has M
D Performs audio compression / expansion on the recording / playback device. Here, the compressed audio data is compressed to about 1/5 of the original data,
Since the rotation speed of the MD is the same as the EFM standard speed of the CD, the data input amount and the output amount will differ by about 5 times or 1/5. Therefore, a DRAM memory called a shock proof memory is used as this data buffer. 4 is used. The system controller 5 is composed of a microcomputer, etc., and includes an RF matrix amplifier 1, a servo, and an E
The FM / ACIRC encoder / decoder 2 is instructed to perform normal reproduction, recording, pause, stop, search and the like. Also, from the servo and EFM / ACIRC encoder / decoder 2, the TOC recorded on the MD is recorded.
Also, it receives the UTOC information and the address information, and decodes them and generates time display data.

The memory 6 is a memory for stocking management information necessary for reproducing the disk such as TOC and UTOC information received via the system controller 5 and displaying the track name, and read and write when necessary. To do. In response to a user's instruction, the key matrix 7 controls the system controller 5 for normal reproduction, recording, pause, stop, search, etc., operates the memory 6, and requests the display 8 for display.

On the other hand, in the UTOC area sector 0 of the sector format used in MD, management information of recorded music data, TNO, etc. are recorded. As a result, the MD recording / reproducing apparatus reproduces the music data based on the address information of the program area in which the music data for each TNO described in the UTOC area sector 0 is recorded during reproduction, and the program area recording during recording. The start and end address information of the recorded music information is recorded in the UTOC area selector 0 in association with the TNO. If the music information data is stored in a distributed manner in terms of addresses, the recording address information of the start and end address information of the dispersed data is used as the Link position data in the TNOC area selector 0. Record in association with.

Next, the recording operation with the configuration of FIG. 1 will be described. Now, assume that the user is trying to record music information on a recordable MD. For example, if this is the recording of a digital signal from a CD input to the digital audio input 14, the TrN on the CD side
TrN to monitor to determine the end of track when O. = n
O. = n + m Q code interrupt causes MD side to judge this Q code interrupt as the start of a new track, and T
Perform additional processing of rNO. At this time, the CD side judges that the track of TrNO. = N has ended, and immediately stops the reproduction of the track of TrNO. = N + m. At this time, if the track (TrNO. = N + m) created here (or about to be created) is less than the arbitrary time, the system controller 6 judges this track as an unnecessary track, U of MD
Edit the information in the TOC area selector 0 and combine this track with the previous or next track.
Or delete this track (do not record as a track). As a result, an extra track created (or about to be created) in a portion that is not recognized or intended by the user is not recorded as one independent track.

Next, the above recording operation will be described with reference to the flow charts shown in FIGS. FIG. 2 is a flow chart in the case of automatically deleting extra tracks. In the case of recording a digital signal from a CD input to the digital audio input 14, first, in step S
When recording is started in step 1, recording start TrNO. = 1 of MD is set in step S2, and the recording start position is temporarily stored in the memory as the START position of TrNO. In step S4, it is determined whether the stop key on the MD side has been operated or the input data has disappeared for a predetermined time. If NO, the process proceeds to step S5, and if YES, the process proceeds to step S20. In step S5,
It is determined whether or not the TrNO. Input from the CD has been carried up. If YES, the process proceeds to step S6, and if NO, the process returns to step S4.

In step S6, the END position is temporarily saved in the memory, and then the process proceeds to step S7. Step S7
Then, the information of the START position and the END position is set to MD Tr.
It is stored in the UTOC on the memory corresponding to NO. In step S8, the recording time, that is, from the START position to EN
It is determined whether or not the time to the D position is equal to or less than the determination time (for example, 1 second). If yes, the process proceeds to step S10, and if no, the process proceeds to step S9. In step S10, the UTOC stored in the previous step S7 is erased (deleted).
In other words, since the MD TrNO. Track is within 1 second, it is automatically deleted. Then, in step S11, S
The TART position is updated and the process returns to step S4. If the answer to step S8 is no, MD TrNO. Is normally recorded, that is, since the recording has been completed for 1 second or longer, the track number is incremented at step S9. Then, step S
The START position is updated at 11 and the process returns to step S4. On the other hand, if the answer to step S4 is yes, the process proceeds to step S20, the recording operation is terminated, and the process proceeds to step S21. In step S21, the END position is temporarily saved,
Next, in step S22, the information of the START position and the END position is transferred to the UTO on the memory corresponding to the MD TrNO.
Store in C. In step S23, it is determined whether or not the measurement time of the recording track at the end of the recording operation is less than or equal to the determination time.
Track indicated by O. (Recording track at the end of recording operation)
And then finish the work. Also, step S2
If the answer to No. 3 is no, the work is finished.

Next, FIG. 3 is a flow chart in the case of automatically combining extra tracks. In the flowchart of FIG. 3, steps S1 to S11 and step S1 are performed.
20 to S24 are the same operations as Steps S1 to S11 and Steps S20 to S24 of the flowchart shown in FIG. 2, and are operations different from those of the flowchart shown in FIG. 2 between Steps S10 and S11. And S13 are inserted, and steps S25 and S26 are inserted between step S24 and the end. In step S12, it is determined whether or not MD TrNO. = 1. If yes, the process returns to step S4, and if no, the process proceeds to step S13. In step S13, MD
END in UTOC on the memory of TrNO.-1
The position is changed or linked position data is written to combine them as related data of the same track, and then the process proceeds to step S11. Also, step S
In 25, it is determined whether or not MD TrNO. = 1. If the answer is yes, the operation is ended, and if the answer is no, the process proceeds to step S26. In step S26, the END position in the UTOC on the memory of the MD TrNO.-1 is changed, or the Link position data is written to combine them as related data of the same track, and then the operation is ended. In this way, the extra track is automatically joined to either the front or back track.

FIG. 4 is a schematic diagram for explaining the manner of recording from the above-mentioned CD to MD. In FIG. 4, MD
When making a program recording of the data of the CD to, for example, the program is TrNO.
When setting to 3, 6, and 9 and starting recording to MD, CD
The data sent from the MD to the MD is set for each TrNO.
After that, the data of TrNO. 2, 4, 7, and 10 outside the setting are included, and the result is as shown in FIG. 4 (A). However, as shown in FIG. 4B, the recording data of the MD is the Tr set in the CD.
The tracks of No. 2, 4 and 7 other than Tr.
No. 10 is deleted. Therefore, 1, 2, 3, and 4 are assigned to the UTOC TrNO. Of the recording data of the MD, and the number of CD reproduction tracks recognized by the user = 4 and the number of tracks actually recorded on the MD = 4. .

[0021]

According to the disk recording apparatus of the present invention, when a recording operation is performed on a recordable disk such as an MD such as a recordable disk or a hybrid disk, it is created by a portion which is not recognized or intended by the user. Redundant tracks (to be created) are no longer recorded as one independent track,
Usability is improved.

[Brief description of drawings]

FIG. 1 is an M diagram showing an embodiment of a disc recording apparatus of the present invention.
It is a block diagram of a D recording / reproducing apparatus.

FIG. 2 is a flowchart illustrating a recording operation of the disc recording device in FIG.

FIG. 3 is a flowchart illustrating a recording operation of the disc recording device of FIG.

4A and 4B are schematic diagrams illustrating a state of recording from a CD to an MD by the disc recording apparatus of FIG. 1, where FIG. 4A shows CD transmission data and FIG. 4B shows MD recording data.

FIG. 5 is a schematic diagram for explaining data transmission in a conventional CD reproducing apparatus, (A) shows recording data of a CD, and (B) shows transmission data of a CD.

FIG. 6 is a schematic diagram for explaining a state of recording from a CD to an MD by a conventional disc recording device, (A) shows sending data of the CD and (B) shows recording data of the MD.

[Explanation of symbols]

1 RF matrix amplifier 2 Servo, EFM / ACIRC encoder / decoder 3 ATRAC encoder / decoder 4 DRAM memory 5 System controller 6 memory 7 key matrix 8 display 9 Digital / Analog Converter (DAC) 10 Analog to Digital Converter (ADC) 15 Optical pickup assembly

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G11B 27/00-27/038 G11B 20/10

Claims (3)

(57) [Claims] 1. A disc recording apparatus, comprising: a deleting unit for automatically deleting a track when a track shorter than a predetermined time is created during or after recording a signal on the disc. . 2. When a track shorter than a predetermined time is created during recording of a signal on a disk or at the end of recording, a connecting means for automatically connecting the track to a track immediately before or immediately after the track is provided. Characteristic disk recording device. 3. The device according to claim 1, wherein
The disc recorder is a mini disc.