JP2001266461A - Audio system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the continuation of recording in a data recording section even if a long time is spent for a track jump or changing of a data recording medium in a data reproducing section during dubbing. SOLUTION: In CD synchronous dubbing, a CD-DA unit 110 successively reproduces assigned tracks and a CD-R unit 120 successively records the reproduced audio data obtained in the unit 110. The unit 110 runs once to a reproducing stop state when the unit makes track jumping or disk changing in the transfer to the nest track and runs to a reproduction standby state when the reproduction of the desired track is thereafter made possible. Further, the unit starts the reproduction after the prescribed time, for example, after two seconds. The unit 120 runs to a recording standby state when the unit 110 runs to the reproduction stop state and starts the recording by running to the recording state when the unit 110 runs to the reproduction standby state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for sequentially reproducing predetermined tracks of one or more first data recording media to obtain reproduced digital audio data, and recording the reproduced digital audio data in a second data recording medium. The present invention relates to an audio device that can be recorded on a medium. Specifically, by controlling the data recording unit so that the data reproducing unit enters a recording standby state when the data reproducing unit enters the reproduction stop state, and then enters a recording state when the data reproducing unit enters the reproduction standby state, the data reproduction is performed during dubbing. The present invention relates to an audio apparatus in which recording can be continued in a data recording section even when a long time is required for a track jump or a change in a data recording medium in the recording section.

[0002]

2. Description of the Related Art A CD-R (CD-Recordable) disc is known as a CD (Compact Disc) compatible write-once disc. On this CD-R disc, for example, digital audio data reproduced from a CD can be recorded. In this case, CD synchro dubbing is known, in which predetermined tracks of one or more CDs are sequentially reproduced to obtain reproduced digital audio data, and the reproduced digital audio data is recorded on a CD-R disc. .

[0003]

Conventionally, in this CD synchronizing dubbing, the CD-R side keeps a recording state for a predetermined time, for example, 4 seconds, even if a track end is detected from digital audio data reproduced from the CD side. And
After the lapse of 4 seconds, the apparatus is in a recording standby state for a predetermined time, for example, 6 seconds. Therefore, if the reproduced digital audio data of the next track is supplied from the CD side within these times, the recording of the reproduced digital audio data is continuously performed on the CD-R side.

However, when a track jump or disc change within the same CD is performed on the CD side, the recording state period (for example, 4 seconds) after the above-described track end detection on the CD-R side and the subsequent period. After the recording standby state period (for example, 6 seconds) has elapsed,
The reproduction of the next track may start on the CD side. In this case, since the recording is already stopped on the CD-R side, the reproduction digital audio data of the next track is not recorded.

FIGS. 3A and 3B show an operation example on the CD side and the CD-R side at the time of disc change.
As shown in FIG. 3A, the CD side enters the reproduction stop state after the track a of the disk A ends, and the track b of the disk B can be reproduced after the lapse of the time t1, and enters the reproduction standby state. After t2 (for example, 2 seconds) has elapsed, the reproduction state is set.

On the other hand, as shown in FIG. 3B, the CD-R side continues the recording state for 4 seconds even after detecting the track end of the track a of the disk A, and thereafter, in the recording pause for 6 seconds. However, when t1 + t2> 10s, the recording stop state is set 10 seconds after the track end is detected. Therefore, C
The reproduced digital audio data from the track b of the disc B supplied from the D side is not recorded.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an audio apparatus which can continue recording in a data recording section even if a long time is taken for a track jump or a change of a data recording medium in a data reproducing section during dubbing. I do.

[0008]

An audio apparatus according to the present invention comprises: a data reproducing section for sequentially reproducing predetermined tracks of a first data recording medium to obtain reproduced digital audio data; A data recording unit for recording the obtained reproduced digital audio data on the second data recording medium; a data recording unit in a recording standby state when the data reproduction unit is in a reproduction stop state; Recording control means for setting the data recording unit to a recording state when the recording is completed.

Further, an audio device according to the present invention comprises:
A data reproducing unit for sequentially reproducing predetermined tracks of the first data recording medium to obtain reproduced digital audio data; and data for recording the reproduced digital audio data obtained by the data reproducing unit on a second data recording medium A recording unit, a reproduction control unit that controls the reproduction operation of the data reproduction unit, a recording control unit that controls the recording operation of the data recording unit, and information indicating the operation state of the data reproduction unit from the reproduction control unit to the recording control unit. Information transmission means for transmitting, the recording control unit, the data recording unit is in a recording standby state when the data reproduction unit is in the reproduction stop state, and is in a recording state when the data reproduction unit is in the reproduction standby state, the data recording unit, To control.

In the present invention, the data reproducing section sequentially reproduces predetermined tracks on the first data recording medium to obtain reproduced digital audio data.
The first data recording medium is composed of one or more data recording media. In the case of a plurality of data recording media, one data recording medium for reproducing digital audio data is taken out by the changer unit.

In the data recording section, the digital audio data reproduced by the data reproducing section is transmitted to the second
Is recorded on a data recording medium. Information indicating the operation state of the data reproducing unit is sent to the recording control unit that controls the recording operation of the data recording unit. Then, the data recording unit is set to a recording standby state when the data reproducing unit is in the reproduction stop state, and is then set to a recording state when the data reproducing unit is in the reproduction standby state.

For example, when the data reproducing unit ends reproduction of a certain track and thereafter enters a reproduction stop state in order to perform a track jump or change a recording medium, the data recording unit enters a recording standby state. After that, when the data reproducing unit completes the track jump or the change of the recording medium and can reproduce the next track and enters the reproduction standby state, the data recording unit enters the recording state. For this reason, the data recording unit records the reproduced digital audio data from the next track supplied from the data reproduction unit thereafter.

In this manner, the data recording section is controlled so that the data reproducing section enters a recording standby state when the data reproducing section is in the reproduction stop state, and is in a recording state when the data reproducing section is in the reproduction standby state. Even if it takes a long time for a track jump or a change of the recording medium, recording can be continued in the data recording unit.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a configuration of an audio device 100 as an embodiment.
The audio device 100 has a system controller 101 for controlling the operation of the entire device. The system controller 101 includes, for example, a display unit 102 which includes a liquid crystal display element and displays the state of the apparatus.
And an operation unit 103 provided with a plurality of input keys for user operation.

The audio device 100 is a CD-D
A (Compact Disc-Digital Audio) unit 110 is provided. The CD-DA unit 110 is a part for reproducing a disk (CD = CD-DA disk) 111.

The CD-DA unit 110 includes a changer section 112 for selectively taking out a disk 111 to be reproduced from a plurality of, for example, three, disks 111,
The disc 11 taken out by the changer section 112
1 for picking up a signal (PU
P) 113, and a signal processing circuit 114 for performing processing such as amplification and waveform shaping on the reproduction signal obtained by the optical pickup 113.

The CD-DA unit 110 performs a demodulation process and an error correction process on the reproduced signal processed by the signal processing circuit 114 to obtain reproduced digital audio data PDA1, and a disc of the changer unit 112. A changer & drive & P / UP controller 116 for controlling the change operation, controlling the focus and tracking of the optical pickup 113, and controlling the feed of the optical pickup 113 and the rotation of a spindle (not shown);
115 and the controller 11
CPU (Central Processing Uni
t) 117.

The audio device 100 is a CD-R
It has a unit 120. This CD-R unit 1
20 is a disc (CD-R disc or CD-DA
This is a part for performing recording and reproduction on the (disk) 121.
As is well known, a CD-DA disc can only be played back.

The CD-R unit 120 reproduces a signal from the disk 121 during reproduction, and an optical pickup (P · P) for recording a signal on the disk 121 during recording.
UP) 122, a signal processing circuit 123, and an encoder /
A drive & P / UP controller 125 that controls the decoder 124 and the focus and tracking of the optical pickup 122, and also controls the laser power, and controls the feed of the optical pickup 112 and the rotation of a spindle (not shown).
And the encoder / decoder 124 and the controller 1 under the control of the system controller 101 described above.
And a CPU 126 for controlling the operation of the CPU 25. C
PU 126 is the C-DA unit 110 described above.
It is connected to the PU 117 via the communication line 130. As a result, information indicating the operation state of the CD-DA unit 110 is sent from the CPU 117 to the CPU 126.

The signal processing circuit 123 performs processing such as amplification and waveform shaping on the reproduction signal obtained by the optical pickup 122 during reproduction, and performs processing on the recording signal obtained by the encoder / decoder 124 during recording. , EFM (Eight
Processing such as recording compensation for stably recording each of the pits of nine different lengths (to fourteen modulation) is performed.

At the time of reproduction, the encoder / decoder 124 performs demodulation processing and error correction processing on the reproduction signal processed by the signal processing circuit 123 to generate reproduced digital audio data PDA2.
The recording digital audio data RDA input to the unit 120 is subjected to error correction code (CIRC) addition processing and modulation (EFM) processing to generate a recording signal.

The audio device 100 is connected to an external C
Digital input terminal 1 for inputting digital audio data reproduced by a D player, MD player, etc.
31 and audio data PDA1, reproduced from the CD-DA unit 110 and the CD-R unit 120.
It has a PDA 2 and a digital output terminal 132 for outputting input digital audio data IDA input to a digital input terminal 131 as output digital audio data ODA.

The audio apparatus 100 further includes a D / A converter 133 for converting the reproduced digital audio data PDA1 and PDA2 and the input digital audio data IDA from a digital signal to an analog signal to obtain an output analog audio signal OSA; And an analog output terminal 134 for outputting the audio signal OSA. This analog output terminal 13
4 is supplied to a speaker (not shown) to output audio data PDA1 and PDA1.
Audio corresponding to DA2 and IDA can be monitored.

The audio device 100 has a data selector 135. This data selector 135
Selectively extracts audio data PDA1 reproduced by the CD-DA unit 110 or audio data IDA input to the input terminal 131 as recorded digital audio data RDA, and outputs audio data PDA1 reproduced by the CD-DA unit 110. , CD
-Audio data PD reproduced by the R unit 120
A2 or the audio data IDA input to the input terminal 131 is converted to the output digital audio data OD.
It is for taking out selectively as A. The operation of the data selector 135 is controlled by the system controller 10
1 is controlled.

That is, the data selector 135 selects the CD
-When the DA unit 110 is in the playback state,
Audio data P reproduced by the DA unit 110
DA1 is extracted as audio data ODA, and CD
-When the R unit 120 is in the reproducing state, the CD-
Audio data PDA reproduced by R unit 120
2 as audio data ODA, and further C
When neither the D-DA unit 110 nor the CD-R unit 120 is in the reproduction state, the audio data IDA input to the input terminal 131 is extracted as audio data ODA.

The data selector 135 is a CD-D
Audio data PDA reproduced by A unit 110
1 is recorded in the CD-R unit 120, the audio data PDA1 is taken out as audio data RDA, and in the state where the audio data IDA input to the input terminal 131 is recorded in the CD-R unit 120, the audio data IDA is recorded. As audio data RDA.

The operation of the audio device 100 shown in FIG. 1 will be described. First, an operation in a case where an instruction to reproduce the disc 111 by the CD-DA unit 110 is given by a user's operation of the operation unit 103 will be described.

In this case, the CD-DA unit 110 enters a reproducing state, and the CD-DA unit 110 outputs reproduced digital audio data PDA1 obtained by reproducing the disk 111. In other words, a signal such as amplification and waveform shaping is performed by the signal processing circuit 114 on the reproduced signal reproduced from the disk 111 by the optical pickup 113, and the reproduced signal is further processed by the decoder 1.
At 15, demodulation processing and error correction processing are performed to obtain reproduced digital audio data PDA1.

The audio data PDA1 obtained by the CD-DA unit 110 in this manner is
By 35, it is taken out as output digital audio data ODA and outputted to the output terminal 132. In this case, the analog output terminal 134 outputs the output analog audio signal OS corresponding to the audio data PDA1.
A is output. By supplying the audio signal OSA to a speaker (not shown), the user can monitor the sound corresponding to the audio data PDA1 reproduced by the CD-DA unit 110.

Next, a description will be given of the operation in the case where an instruction to reproduce the disc 121 by the CD-R unit 120 has been given by the operation of the operation unit 103 by the user.

In this case, the CD-R unit 120 enters a reproducing state, and the CD-R unit 120 outputs reproduced digital audio data PDA2 obtained by reproducing the disk 121. The reproduction operation of the CD-R unit 120 is the same as the reproduction operation of the CD-DA unit 110 described above, and the description is omitted.

The audio data PDA2 reproduced by the CD-R unit 120 in this way is
By 35, it is taken out as output digital audio data ODA and outputted to the output terminal 132. In this case, the audio data PDA is output to the output terminal 134.
2 is output as the output analog audio signal OSA. By supplying the audio signal OSA to a speaker (not shown), the user can operate the CD-R unit 12.
The audio corresponding to the audio data PDA2 reproduced at 0 can be monitored.

Next, a description will be given of an operation in the case where an instruction to record the input digital audio data IDA input to the input terminal 131 by the CD-R unit 120 is given by the user's operation of the operation unit 103.

In this case, the audio data IDA is taken out as recorded digital audio data RDA by the data selector 135 and is output to the CD-R unit 12.
Input to 0. Then, the CD-R unit 120 enters the recording state, and the input audio data RDA, that is, the audio data ID input to the input terminal 131 is output.
A is recorded on the disc (CD-R disc) 121.

In this case, the input audio data IDA is taken out as output digital audio data ODA by the data selector 135 and output to the output terminal 132. The output terminal 134 outputs an output analog audio signal OSA corresponding to the audio data IDA. By supplying the audio signal OSA to a speaker (not shown), the user can monitor the sound corresponding to the audio data IDA input to the input terminal 131 and recorded by the CD-R unit 120.

When the CD-DA unit 110 is not in the reproducing state and the CD-R unit 120 is not in the reproducing state or the recording state, the audio data IDA inputted to the input terminal 131 is output by the data selector 135. The audio data is extracted as digital audio data ODA and output to the output terminal 132. The output terminal 134 outputs an output analog audio signal OSA corresponding to the audio data IDA.

Next, a description will be given of the operation in the case where an instruction to record the audio data PDA1 reproduced by the CD-DA unit 110 by the CD-R unit 120 is issued by the operation of the operation unit 103 by the user.

In this case, the CD-DA unit 110 is in a reproducing state, and the CD-DA unit 110 outputs reproduced digital audio data PDA1 obtained by reproducing the disk 111. The audio data PDA1 is taken out by the data selector 135 as recorded digital audio data RDA and is
The data is input to the DR unit 120.

The CD-R unit 120 is in a recording state, and the input audio data RDA, that is, C
The audio data PDA1 reproduced by the D-DA unit 110 is recorded on a disc (CD-R disc) 121. That is, the encoder / decoder 124 adds the error correction code (CIRC) to the input recorded digital audio data RDA and modulates (EF)
M) Processing is performed to generate a recording signal, and this recording signal is subjected to processing such as recording compensation by a signal processing circuit 123, supplied to the optical pickup 122, and recorded on the disk 121. Thus, the recorded contents of the disk 111 mounted on the CD-DA unit 110 are
Will be dubbed.

In this case, the CD-DA unit 110
The audio data PDA1 reproduced by the output digital audio data O
It is extracted as DA and output to the output terminal 132.
The output terminal 134 outputs an output analog audio signal OSA corresponding to the audio data PDA1. By supplying the audio signal OSA to a speaker (not shown), the user can operate the CD-DA unit 110.
And the sound corresponding to the audio data PDA1 recorded by the CD-R unit 120 can be monitored.

Here, the operation of CD synchronized dubbing will be described. In the CD synchro dubbing, a track (song) to be reproduced by the CD-DA unit 110 can be programmed in advance by operating the operation unit 103 by the user. The CD synchro dubbing is started when the user presses down the dubbing key of the operation unit 103. When the dubbing key is operated in this manner, the system controller 101 causes the CPUs 117 and C of the CD-DA unit 110 to operate.
An instruction is issued to the CPU 126 of the DR unit 120 to start the CD synchro dubbing operation.

The CD-DA unit 110 starts reproduction from the designated first track. In this case, CD-D
The A unit 110 enters the playback standby state when the first track can be played, and starts playing after a predetermined time, for example, 2 seconds. CD-DA unit 110
Is in the reproduction state, the reproduction digital audio data PDA1 is obtained from the decoder 115, and this is supplied from the data selector 135 to the CD-R unit 120 as the recording digital audio data RDA.

The CD-R unit 120 enters the recording state when the CD-DA unit 110 enters the reproduction standby state, and starts recording. In this case, as described above, the CD-DA unit 110 enters the reproduction standby state and starts reproduction after a predetermined time, for example, 2 seconds, and the CD-R unit 120 enters the recording state and performs the predetermined time. For example, silent recording is performed until two seconds elapse, and then the digital audio data RD is actually recorded.
Record A. As described above, the CPU 126 of the CD-R unit 120 includes the CD-DA unit 1
From the ten CPUs 117 via the communication line 130,
Information indicating the operation state of the CD-DA unit 110 is transmitted.

The CD-DA unit 110 sequentially reproduces designated tracks. In this case, when moving from a certain track to the reproduction of the next track, the reproduction state is continued as it is if the next track in the same disc is to be moved. Or when changing to a track on a different disk and changing the disc, the playback is temporarily stopped, and then when the target track can be played, the playback is set to the standby state. For example, the reproduction is started after two seconds.

The CD-R unit 120 continues the recording state while the CD-DA unit 110 continues the reproduction state, but enters the recording standby state when the CD-DA unit 110 enters the reproduction stop state. After that, when the CD-DA unit 110 enters the reproduction standby state, it enters the recording state and starts recording.

FIGS. 2A and 2B show the CD-DA unit 110 and the CD-DA unit at the time of disc change, respectively.
4 shows an operation example of the R unit 120. As shown in FIG. 2A, the CD-DA unit 110 enters the reproduction stop state after the track a of the disk A ends, and the reproduction of the track b of the disk B becomes possible after the lapse of the time t1, and enters the reproduction standby state. And time t
After 2 (for example, 2 seconds) elapse, the reproduction state is set.

On the other hand, the CD-R unit 120
As shown in FIG. 2B, when the CD-DA unit 110 enters the reproduction stop state, the recording standby state occurs when the CD-DA unit 110 enters the reproduction stop state, and thereafter, the recording state occurs when the CD-DA unit 110 enters the reproduction standby state. Start recording. Therefore, even if the disk change takes a long time, recording can be continued without being in a recording stop state as in the related art (see FIG. 3B). Since the same operation is performed at the time of a track jump in the same disk, recording can be continued even if the track jump takes a long time.

The CD-DA unit 110 sequentially reproduces the designated tracks as described above. When the reproduction of the last track is completed, the CD-DA unit 110 enters a reproduction stop state and ends the dubbing operation (reproduction operation). I do. And C
When the D-DA unit 110 finishes the dubbing operation, the CD-R unit 120 enters a recording stop state and ends the dubbing operation (recording operation).

As described above, in the present embodiment, the CD-DA unit 1 performs a track jump or a disc change during the operation of CD synchro dubbing.
When 10 is in the playback stop state, the CD-R unit 120 is in the recording standby state,
When the D-DA unit 110 can reproduce a target track and enters a reproduction standby state, the CD-R unit 120 enters a recording state. Therefore,
Even if it takes a long time for a track jump or disc change in the CD-DA unit 110, the CD-R unit 12
Recording can be continued at 0.

In the above embodiment, the CD-
Although the apparatus having the DA unit 110 and the CD-R unit 120 is shown, the present invention
C that can handle CD-RW discs instead of 0
The present invention can be similarly applied to a device including a D-RW unit, a device including a CD-R unit instead of the CD-DA unit 110, and a device including a CD-R unit and a CD-RW unit.

In the above-described embodiment, the CD is transmitted from the system controller 101 through the CPU 117.
Control the operation of the DA unit 110, and
6 controls the operation of the CD-R unit 120, but the CD-DA unit 110
7 and the CD-R unit 120 has a CP
U126 is not provided, and the system controller 101
Directly controls the CD-DA unit 110 and the CD-R unit 120.

It is also possible to detect that all the tracks programmed by the system controller 101 have been reproduced and send a recording end instruction signal to the CPU 126. In this case, the CD-R unit 12
It is possible to prevent the recording standby state of 0 from being maintained unnecessarily.

[0053]

According to the present invention, the data recording section is controlled so as to enter the recording standby state when the data reproducing section enters the reproduction stop state, and thereafter enter the recording state when the data reproducing section enters the reproduction standby state. That is, even if it takes a long time for the track jump or the change of the recording medium in the data reproducing unit, the recording can be continued in the data recording unit. Therefore, the present invention is extremely suitable for application to an audio device that performs recording stop control by detecting silence.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of an audio device according to an embodiment.

FIG. 2 is a diagram for explaining an operation example at the time of a disc change.

FIG. 3 is a diagram for explaining an example of an operation at the time of a conventional disk change.

[Explanation of symbols]

Reference Signs List 100 audio device 101 system controller 102 display unit 103 operation unit 110 CD-DA unit 111, 121 disk 112 changer unit 113, 122 optical pickup 114, 123 signal processing circuit 115 decoder 116 changer & drive & P / UP controller 117, 126 CPU 120 CD-R unit 124 Encoder / decoder 125 Drive & P / UP controller 130 Communication line 131 Digital input terminal 132 Digital output terminal 133 D / A converter 134 Analog output terminal 135 Data selector

Claims (4)

[Claims] 1. A data reproducing unit for sequentially reproducing predetermined tracks on a first data recording medium to obtain reproduced digital audio data, and a method for converting the reproduced digital audio data obtained by the data reproducing unit to a second data A data recording unit for recording on a recording medium, and when the data reproduction unit is in a reproduction stop state, the data recording unit is in a recording standby state, and when the data reproduction unit is in a reproduction standby state, the data recording unit is recorded. An audio device comprising: a recording control unit for setting a state. 2. A data reproducing section for sequentially reproducing a predetermined track of a first data recording medium to obtain reproduced digital audio data, and converting the reproduced digital audio data obtained by the data reproducing section into a second data. A data recording unit for recording on a recording medium; a reproduction control unit for controlling a reproduction operation of the data reproduction unit; a recording control unit for controlling a recording operation of the data recording unit; and a recording control unit from the reproduction control unit to the recording control unit. Information transmission means for transmitting information indicating an operation state of the data reproducing unit, wherein the recording control unit is in a recording standby state when the data reproducing unit is in a reproduction stop state, and the data reproducing unit is in a reproduction standby state. An audio device, wherein the data recording unit is controlled so as to be in a recording state when the following condition is satisfied. 3. The first data recording medium includes a plurality of data recording media, and the data reproducing unit extracts one data recording medium for reproducing the digital audio data from the plurality of data recording media. The audio device according to claim 1, further comprising a changer portion. 4. The optical disk according to claim 1, wherein the first data recording medium is a reproduction optical recording disk, and the second data recording medium is a recordable optical recording disk.
An audio device according to any one of the above.