JPH05159445A - Optical disk recorder - Google Patents

Abstract

PURPOSE:To rapidly start recording operation and to prevent a failure of lack of a leading part of a recording signal. CONSTITUTION:A recording standby mode is provided for the purpose of making an optical head 3 access a position capable of starting recording on an optical disk 2 and the pausing state in advance, so that rapid recording is feasible by starting recording when a recording start command is inputted from a key input operating part 8 under the state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk recording apparatus using a recordable optical disk such as a write-once optical disk or a recordable / erasable magneto-optical disk.

[0002]

2. Description of the Related Art When an information signal such as a voice is recorded on a disc recording apparatus using a recordable optical disc, for example, a write-once type optical disc or a recordable / erasable type magneto-optical disc, the innermost side of the optical disc is recorded. A recording operation is performed based on the table-of-contents information recorded in the recording area (for example, JP-A-63 / 63)
-292,481 gazette). That is, when an information signal is recorded on an optical disc, before the recording operation is started by the optical pickup or immediately after the recording operation is started, the optical pickup first irradiates the optical disc with the optical power of the light beam at the reproduction level. The pickup sends the pickup to the innermost side of the optical disc, reads the index information recorded on the innermost side of the optical disc, and the address information of the disc corresponding to the recording end point of the previous optical disc in the index information. Is read out and this information is stored in a storage means such as a RAM. After that, after the pickup has sent the pickup to the position of the address corresponding to the previous recording end point, the power of the light beam irradiating the optical disc of the optical pickup is switched from the reproduction level to the recording level to perform the recording operation. I do.

Here, when a magneto-optical disk is used as the recordable optical disk, the power of the light beam applied to the optical disk of the above-mentioned optical pickup is switched from the reproduction level to the recording level, and at the same time an external magnetic field is generated. An external magnetic field is applied to the magneto-optical disk by a magnetic head as a device. In this case, in the above-described recordable optical disc, as disclosed in, for example, Japanese Patent Laid-Open No. 63-87682, a pre-groove as a guide groove formed in the optical disc is formed in a predetermined radial direction of the disc. Information such as absolute time information is recorded by wobbling (shaking) with the frequency, and the recording device is configured to control the feed of the optical pickup based on this absolute time information.

[0004]

By the way, the recording apparatus for an optical disc having the above-described structure, when starting the recording operation, picks up the index information once recorded on the innermost circumference side of the recording area of the optical disc. After reading the address information of the disc corresponding to the recording end point of the previous disc recorded in the table of contents information by moving the, move the optical pickup to the position of the disc address corresponding to the recording end point, and then Since the information signal is continuously recorded by the optical pickup at the recording end point of, the time until the recording operation is started and, as a result, the head portion of the information signal to be recorded is interrupted. Therefore, the usability becomes worse than that of a recording apparatus using a magnetic tape such as a tape recorder. This point may not be a serious problem when recording normal data, but may cause a serious problem when the information signal to be recorded is a voice signal.

The present invention has been made in view of the above circumstances, and an optical disk capable of shortening the time until the actual recording operation is started as in a recording apparatus using a normal magnetic tape. The purpose is to provide a recording device.

[0006]

In order to solve the above-mentioned problems, a compressed data recording / reproducing apparatus according to the present invention is an optical disk recording means capable of optically recording an information signal in which address information is recorded in advance. An optical disc device for recording an information signal by moving the recording means to a position corresponding to the final recording address information on the basis of the final recording address information recorded in the table of contents information recording section provided on the optical disc. The recording standby mode setting means for setting the recording standby state, the input means for inputting each mode of the recording start and the recording standby state, and the recording standby mode is set by the recording standby mode setting means by the output from the input means. In this state, when the mode of the recording start operation is further input by the input means, the recording operation by the recording means is started. It is intended.

[0007]

The recording means is moved to the recording area of the disc corresponding to the final recording address information recorded in the table-of-contents information recording section provided in advance on the optical disc, and the recording is performed when the recording mode is set in that state. A quick recording operation can be started by starting the recording operation by the means.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A case where a magneto-optical disk is used as an optical disk capable of optically recording an information signal will be described below with reference to the drawings.

First, the structure of a magneto-optical disk recording / reproducing apparatus according to a first embodiment of the present invention will be described with reference to FIG. In this magneto-optical disk recording / reproducing apparatus, the magneto-optical disk 2 is rotationally driven by the spindle motor 1. The magneto-optical disk 2 is made of a polycarbonate resin, an acrylic resin such as PMMA, and a transparent disk substrate such as glass.
A magneto-optical recording medium material such as bFeCo is formed into a thin film on the disk substrate by a method such as vapor deposition and sputtering, and a protective film made of an ultraviolet effect resin for protecting the magneto-optical recording medium is formed by a method such as spin coating. It is provided on the magneto-optical recording medium.

The optical head 3 includes a laser light source such as a laser diode (not shown), a collimator lens for collimating a light beam from the laser light source, and the collimator lens for focusing on the recording film of the magneto-optical disk 2. Objective lens, polarization beam splitter for separating light beam emitted from laser light source and return light from magneto-optical disk 2, photodetector for receiving return light from magneto-optical disk 2 separated by polarization beam splitter, polarization beam splitter The optical element for detecting the focus error, which is arranged in the incident optical path of the detector of the light beam separated by the above, and the objective lens are driven in the focusing direction parallel to the optical axis of the objective lens and the tracking direction orthogonal to the optical axis direction. It is composed of an objective lens driving means and the like.

The optical head 3 is arranged at a position facing the magnetic head 4 with the magneto-optical disk 2 interposed therebetween. The optical head 3 and the magnetic head 4 are mechanically connected, and the magnetic head 4 is fed by the feed motor 30 in the radial direction of the magneto-optical disk 2 along a guide means (not shown). Is also sent in the radial direction of the magneto-optical disk 2.

The magnetic head 4 is constructed by winding a coil member around a yoke member having a predetermined shape, and the magnetic head 4 is attached to one end of an arm-shaped member (not shown) to return to the arm-shaped member. The other end side is mechanically connected to the optical head 3 as described above, and when the optical head 3 moves in the radial direction of the magneto-optical disk 2, the magnetic head 4 also moves in the radial direction of the magneto-optical disk 2.

When an information signal is recorded on the magneto-optical disk 2, the optical head 3 irradiates a light beam having a recording power level, and the magnetic head 4 is driven by the magnetic head drive circuit 16 in this state. A magnetic field modulated according to the information signal to be recorded is applied from the back surface side of the magneto-optical disk 2, and information is recorded along the pre-groove as the guide groove on the subcutaneous tampered disk 2 according to the modulated magnetic field from the magnetic head 4. The signal is being recorded. As described above, this pre-groove has a predetermined frequency at which the magneto-optical disc 2
Wobbled in the radial direction. When reproducing the information signal recorded on the magneto-optical disk 2, the optical head 3 irradiates the target recording track of the magneto-optical disk 2 with a light beam of a reproduction power level, so that the magneto-optical disk 2 is recorded. Utilizing the fact that the Kerr effect causes a difference in the deflection angle between the return light from the magneto-optical disk 2 obtained by tracing the recording track and the light beam from the light source of the optical head 3, the magneto-optical disk 2 is optically utilized. The objective lens of the optical head 3 is reproduced by the so-called astigmatism method, push-pull method or the like based on the detection output from the detector that receives the return light beam from the magneto-optical disk 2 while reproducing the information signal recorded in A focus error signal and a tracking error signal are generated by driving the driving means, and the servo control circuit 6, which will be described later, outputs the focus error signal to the optical error signal. Performing each servo focusing and tracking by driving the objective lens driving means of de 3.

The output from the optical head 3 is supplied to the RF circuit 5. The RF circuit 5 extracts the focus error signal and the tracking error signal from the output from the optical head 3 and supplies them to the servo control circuit 6 as described above, and also binarizes the reproduction signal to reproduce the decoder of the reproduction system described later. 21.

The servo control circuit 6 is composed of a focus servo circuit, a tracking servo circuit, a sled servo circuit, a spindle servo circuit and the like. In the focus servo circuit, the return light beam from the magneto-optical disk 2 passes through the optical element for focus detection of the optical head 3 to deform the beam spot generated by the surface contact of the magneto-optical disk 2 on the detector. The objective lens driving device of the optical head 3 is driven so that the formed focus error signal becomes zero, and focus control is performed. Further, the tracking servo circuit drives the objective lens driving device of the optical head 3 to perform tracking control so that the tracking error signal becomes zero. The spindle servo circuit rotates the magneto-optical disk 2 at a predetermined rotation speed, for example, a constant linear velocity, so as to rotate the spindle motor 1
To control. The sled servo circuit moves the optical head 3 and the magnetic head 4 to a target recording track of the magneto-optical disk 2 designated by the system controller 7.

Further, the system controller 7 includes a key input operation section 8 and a display section 9 for recording in an operation mode designated by operation input information from the key input operation section 8 and a recording standby mode to be described later, and a reproduction mode. In addition to the control, the light source drive circuit 32 of the optical head 3 is controlled to control the output of the light source in accordance with the recording and reproducing modes. The system controller 7 also records the recording tracks traced by the optical head 3 and the magnetic head 4 based on the address information in sector units reproduced from the recording tracks of the magneto-optical disk 2 by the header time, sub-Q data and the like. Manage the recording and playback positions above. Further, the system controller 7 has an AD (adaptive difference) PCM, which will be described later, which is switched and selected by the key input operation unit 8.
The bit compression mode is displayed on the display unit 9 based on the bit compression mode information in the encoder 13 and the bit compression mode information in the reproduction data obtained from the RF circuit 5 via a reproduction system described later, and this bit is displayed. Based on the data compression rate in the compression mode and the reproduction position information on the recording track, the display unit 9 is controlled to display the reproduction time.

This reproduction time display is address information (absolute time information) in sector units reproduced from the recording track of the magneto-optical disk 2 by header time, sub Q data, or the like.
Is multiplied by the reciprocal of the data compression rate in the bit compression mode (for example, 4 in the case of 1/4 compression) to obtain the actual reproduction time, and this is displayed on the display unit 9. Even at the time of recording, for example, when absolute time information is pre-formatted on a recording track of a magneto-optical disk or the like by wobbling the pre-groove at a predetermined cycle in the disk radial direction, this pre-formatted absolute It is also possible to display the current position as the actual recording time by reading the time and multiplying it by the reciprocal of the data compression rate. Further, the magneto-optical disk 2 is preformatted with absolute time information, and a table of contents information recording section is provided on a part of the recording area of the information signal, for example, on the inner peripheral side, and serves as recorded program information. In addition to the number of pieces of music, the length of each piece of music, and the start address information of each piece of music, final recording address information corresponding to the recording end point is recorded for each recording operation.

Here, the recording system of this magneto-optical disk recording / reproducing apparatus comprises an A / D converter 12 to which an analog audio signal A _IN as an information signal to be recorded is supplied from an input terminal 10 via an LPF 11. ing.

The A / D converter 12 quantizes the audio signal A _IN, and the digital audio data obtained from the A / D converter 12 is converted into ATC (adaptive conversion coding) or AD (adaptive difference) PCM. Encoder for high-efficiency coding such as coding, for example, ADPCM encoder 13
Is supplied to. The ADPCM encoder 13 performs a data compression process corresponding to various modes in the CD-I system, for example, on digital audio data of standard transfer rate obtained by quantizing the audio signal A _IN by the A / D converter 12, and a system controller. The operation mode is set by 7. For example, CD
In the -I mode B level mode, the sampling frequency is 37.8 kHz, and the number of bits per sample is 4-bit compressed data (ADPCM audio data).
It is supplied to the AM 14. The data transfer rate in the B-level stereo mode is reduced to 1/4 (18.75 sectors) of the standard data transfer rate (75 sectors / second).

In the embodiment shown in FIG. 1, the A / D
The sampling frequency of the converter 12 is, for example, standard CA-
The sampling frequency of DA format is 44.1.
The frequency is fixed to kHz, and the ADPCM encoder 13 converts the sampling rate according to the compression mode (for example, 44.1 kHz to 37.8 kHz at level B).
It is assumed that the bit compression processing from 16 bits to 4 bits has been performed after the conversion.
As another embodiment, the sampling frequency itself of the A / D converter 12 may be controlled to be switched according to the compression mode. In this case, the sampling frequency of the A / D converter 12 which is controlled to be switched. Depending on LPF
The cutoff frequency of 11 is also switched and controlled. That is, the sampling frequency of the A / D converter 12 and the cutoff frequency of the LPF 11 may be simultaneously switched and controlled according to the compression mode.

Next, in the RAM 14, data writing and reading are controlled by the system controller,
It is used as a buffer memory for temporarily storing the ADPCM audio data supplied from the ADPCM encoder 13 and recording it on the disc as needed. That is, in the B-level stereo mode, the compressed audio data supplied from the ADPCM encoder 13 has a data transfer rate ¼ of the standard data transfer rate (75 sectors / second), that is, 18.75 sectors. / Sec, and this compressed data is continuously written in the RAM 14. As for the compressed data (ADPCM data), it is sufficient to record one sector for every four sectors as described above, but such recording for every four sectors is practically impossible due to the interleave processing, and will be described later. Such sector continuous recording is performed. This recording is performed in bursts at a standard data transfer rate (75 sectors / second) using a cluster composed of a plurality of predetermined sectors (for example, 32 sectors + several sectors) as a recording unit through a pause period of data compressed on a time axis. It is performed intermittently. That is, in the RAM 14, 18.75 (= 75/4) depending on the bit compression rate.
B-level stereo mode ADPCM audio data continuously written at a low transfer rate of sector / second is read out in burst form as recording data at the transfer rate of 75 sector / second. Regarding the read and recorded data, the overall data transfer rate including the recording pause period is 18.75 sectors / sec, but within the time of the burst recording operation. The instantaneous data transfer rate is the standard 75 sectors / sec. Therefore, the disc rotation speed is standard CD-D.
When the speed is the same as the A format (constant linear speed), the same recording density and recording pattern as the CD-DA format are recorded.

The ADPCM audio data, that is, the recording data, which is burst-read from the RAM 14 at a transfer rate of 75 sectors / second, is supplied to the encoder 15. Here, in the data string supplied from the RAM 14 to the encoder 15, a cluster composed of a plurality of sectors (for example, 32 sectors) and several sectors for cluster connection arranged at positions before and after the cluster are continuously recorded by one recording. The unit to be recorded in. The sector for cluster connection is set longer than the interleave length in the encoder 15 so that the data of other clusters will not be affected even if interleaved.

The encoder 15 is the RAM 14 described above.
From the above, regarding the recording data supplied in bursts, the encoding process (parity addition and interleave process) for error correction and the EFM (8-14 modulation)
Perform processing, etc. The recording data encoded by the encoder 15 is supplied to the magnetic head drive circuit 16.

The magnetic head drive circuit 16 is connected to the magnetic head 4 and drives the magnetic head 4 so as to apply a modulating magnetic field according to the recording data to the magneto-optical disk 2. Further, the system controller 7 controls the writing and reading as described above with respect to the RAM 14, and the recording data read in burst from the RAM 14 by the memory control is continuously recorded on the recording tracks of the magneto-optical disk 2. The recording position on the disc is controlled so that the recording is performed on the disc.
The recording position is controlled by controlling the recording position on the disc of the recording data read out in burst from the RAM 14 by the system controller 7 and designating the recording position on the recording track of the magneto-optical disc 2. This is done by supplying a signal to the servo circuit 6.

Next, the reproducing system in this magneto-optical disk recording / reproducing apparatus will be described. This reproducing system reproduces the record data continuously recorded on the recording track of the magneto-optical disk 2 by the recording system as described above, and the recording track of the magneto-optical disk 2 is recorded by the optical head 3. The decoder 21 is provided with a reproduction output obtained by tracing with a light beam having a reproduction power level, which is binarized and supplied by the RF circuit 5.

The decoder 21 corresponds to the encoder 15 in the recording system, and is the R
The reproduction output binarized by the F circuit 5 is subjected to processing such as the above-described decoding processing for error correction and EFM demodulation processing, and the above-mentioned A in the B level stereo mode.
The DPCM digital audio is 75 sectors / speed faster than the normal transfer rate in the B level stereo mode.
Play at a transfer rate of seconds. The reproduction data obtained by the decoder 21 is supplied to the RAM 22.

The RAM 22 is controlled by the system controller 7 to write and read data, and reproduced data supplied from the decoder 21 at a transfer rate of 75 sectors / second is sequentially transferred at a transfer rate of 75 sectors / second. Written. In addition, this memory 22 is
The reproduction data written intermittently in bursts at a transfer rate of sectors / second is continuously read at a regular transfer rate of 18.75 sectors / second in the B-level stereo mode.

The system controller 7 writes the reproduction data in the RAM 22 at a transfer rate of 75 sectors / sec, and continuously reads the reproduction data from the RAM 22 at a transfer rate of 18.75 sectors / sec, Further, the RAM 22 is controlled so that the writing of data to the RAM 22 is suspended so that the amount of data stored in the RAM 22 does not overflow.

Further, the system controller 7 carries out the above-mentioned writing and reading control with respect to the RAM 22, and the RAM is controlled by the RAM control.
The reproduction position control of the optical head 3 with respect to the recording track of the magneto-optical disk 2 is performed so that the reproduction data written in burst in 22 is continuous. This optical head 3
In the reproduction position control, the reproduction position of the reproduction data read out in burst from the RAM 22 of the optical head 3 on the disk is managed by the system controller 7, and the reproduction position on the recording track of the magneto-optical disk 2 is controlled. By supplying a control signal to specify to the sled servo circuit of the servo control circuit 6, the feed motor 30 is driven to feed the optical head 3 in the radial direction of the magneto-optical disk 2.

The B-level stereo mode ADPCM audio data obtained as the reproduction data continuously read from the RAM 22 at a transfer rate of 18.75 sectors / second is supplied to the ADPCM decoder 23.

The ADPCM decoder 23 corresponds to the ADPCM encoder 13 of the recording system, and the operation mode is designated by the system controller 7, and in this magneto-optical disc recording / reproducing apparatus, the B level
The ADPCM audio data in the stereo mode is decompressed four times to reproduce the digital audio data in the CD-DA mode. The ADPCM decoder 23 supplies the digital audio data to the D / A converter 24.

The D / A converter 24 is the ADPCM.
The digital audio data supplied from the decoder 23 is converted into an analog signal, and the analog audio signal A _{OUT is} output.
To form. The analog audio signal A _OUT obtained by the D / A converter 24 is output from the output terminal 26 via the LPF 25.

The reproducing system of the magneto-optical disk recording / reproducing apparatus of the first embodiment also has a digital output function, and the digital audio data output from the ADPCM decoder 23 is digitally output via the digital output encoder 27. The audio signal D _OUT is output from the digital output terminal 28.

In the magneto-optical disk recording / reproducing apparatus of this embodiment having the above-mentioned structure, the recording system is controlled by the system controller 7 so as to perform the recording operation as shown in FIGS.

The operation will be described in detail below with reference to the operation flowcharts shown in FIGS. First, when performing a recording operation on the magneto-optical disk 2,
To the recording / playback device. When performing a recording operation in that state, a recording standby state described below is set by operating a standby key for setting the recording standby state of the key input operation unit 8.

When the standby key of the key input operation unit 8 is operated, YES is determined in step S1, and the spindle motor 1 is started by the control signal from the system controller 7 as in the normal reproduction. After the focus and tracking servo pull-in operations of the optical head 3 are performed via the servo control circuit 6, the contents recorded in the contents information recording section of the magneto-optical disk 2 in the RAM 31 as shown in step S2. Whether the information is stored or not is judged by the system controller 7 and RA
If the table of contents information is stored in M31 (when YES), the process proceeds to step S3 to determine whether the last recorded address information is stored in the table of contents information. If YES, the process proceeds to step S4 and the servo control circuit. The control signal is supplied from the system controller 7 to drive the feed motor 30 to cause the optical head 3 to access the position corresponding to the final recording address information of the index information of the magneto-optical disk 2. At this time, the system controller 7 controls the light source drive circuit 32 such as the laser diode drive circuit to set the power of the light beam emitted from the light source (laser diode or the like) in the optical head 3 to the reproduction level.

If the final recording address information does not exist as the table-of-contents information stored in the RAM 31, NO is determined in step S3, and the process proceeds to step S5 to correspond to the start address of the recording area of the magneto-optical disk 2. The feed is controlled to the position to be performed in the same manner as described above.

After this, as shown in steps S11 and S12 of FIG. 3, the optical head 3 repeats the one-track jump operation to be in the so-called pause state and in the standby state, and the recording key of the key input operation section 8 is operated. Wait for

As described above, the operation of the optical head 3 is controlled when the information in the table-of-contents information recording portion of the magneto-optical disk 2 is already stored in the RAM 31, but the table-of-contents information is stored in the RAM 31. If not, step S2
Is determined to be NO, the process proceeds to step S6, the control signal from the system controller 7 is supplied to the servo circuit 6 to control the feed motor 30, and the optical head 3 corresponds to the table of contents information recording section of the magneto-optical disk 2. The information recorded in the table-of-contents information recording portion is read, and it is determined in step S7 whether or not the last recorded address information is recorded in the read table-of-contents information. If NO, the process proceeds to step S5. , YES, the process proceeds to step S8, the information is stored in the RAM 31, and the optical head 3 is made to access the position corresponding to the final recording address information of the index information of the magneto-optical disk 2 in step S9. Three
In step S11, the standby operation described above is performed.

In this standby state, when the optical head is in a paused state at a predetermined position of the magneto-optical disk 2 corresponding to the final recording address information of the table of contents information, the recording key or the Rec button of the key input operation section 8 is operated. Then, YES is determined in the step S12, the process proceeds to a step S13, and the system controller 7 controls the operation of the recording system to start recording. That is, the power of the light beam emitted from the optical head 3 to the magneto-optical disk 2 is controlled by the drive signal by the control signal from the system controller 7 to switch from the reproduction level to the recording level, and the final recording of the table of contents information is performed. The recording operation of the information signal is started by the magneto-optical disk 2 continuously from a predetermined position of the recording track of the magneto-optical disk corresponding to the address information by the recording system of the disk recording / reproducing apparatus described above. When the recording operation is completed in this state, YES is determined in the step S14, and the address information corresponding to the final recording point is temporarily RA
Then, the system controller 7 controls the light source drive circuit 32 to switch the power of the light beam irradiating the magneto-optical disk 2 of the optical head 3 to the reproduction level, and to store the light in the M31. Magnetic disk 2
An access operation is performed by supplying a control signal from the system controller 7 to the optical head 3 and the servo control circuit 6 to the table of contents information recording section provided in the recording area. Then, the system controller 7 controls the light source drive circuit 32 to set the power of the light beam of the optical head 3 to the recording power, and drives the magnetic head 4 based on the information stored in the RAM 31 to drive the magneto-optical disk 2. The last recorded address information in the table of contents information recording section is updated.

As described above, when the recording standby state is set in advance, the optical head 3 stands by in the pause state at the recording operation start position of the magneto-optical disk 2, so that the power consumption increases. Therefore, FIG. 4 shows a specific example as another embodiment of the present invention which can solve the above-mentioned point, and will be described below. In FIG. 4, parts corresponding to those in FIG. 1 are designated by the same reference numerals, and description thereof will be omitted.

First, by operating the standby key of the key input operation unit 8 of FIG. 4, the standby state is set by the system controller 7 as described above, and at the same time, the control signal from the system controller 7 is It is supplied to the timer circuit 33 used in the embodiment. The timer circuit 33 starts counting the reference clock in response to a control signal from the system controller 7, and supplies a count end output to the system controller 7 when a predetermined clock is counted. The system controller 7 terminates the recording operation when the recording key of the key input operation unit 8 is not operated when the output signal from the timer circuit 32 is supplied. That is, the operation of the light source of the optical head 3 is stopped while the optical head 3 is stopped at the recording start position of the magneto-optical disk 2. When the standby state is set again in this state, the irradiation power of the light beam of the optical head 3 is used as the reproduction level to read the address of the magneto-optical disk 2 and compare it with the final recording address information in the table of contents information in the RAM 31. If they do not coincide with each other, the position corresponding to the final recording address information is accessed by repeating a track jump operation such as a one-track jump operation to enter the pause state again, and the standby state described above is obtained.

In each of the above-described embodiments, the key input operation section 8 is provided with a dedicated standby key, a standby mode button, or the like, but it is not necessary to provide such a dedicated key or button. Alternatively, for example, the existing recording key or the Rec button may be used to switch to the standby mode or the standby mode when pressed once and to the recording mode or Rec mode by the second pressing operation.

FIGS. 5 and 6 show an operation in which the recording key or Rec button is pressed once to shift to the standby mode (standby mode), and twice to shift to the original recording (Rec) mode. 3 is a flowchart for explaining the above. In FIG. 5, the first step S21
In step S22, it is detected whether or not the record key or the Rec button is pressed (first time). If YES, the process proceeds to step S22, and the table of contents information is stored in the RAM 31 of FIG. 1 or FIG. It is determined whether or not Steps S22 to S29 in FIG. 5 substantially correspond to steps S2 to S9 in FIG. 2, and the optical head 3 is sent to the recording start position of the optical disc 2 as described in detail regarding these steps S2 to S9. The action is taken.

Next, in step S31 of FIG. 6, the robot stands by in a pause state, and in the next step S32, it is determined whether or not the Rec button has been pressed (second time). If NO, the process proceeds to step S36. It is determined whether or not the Stop (stop) button has been pressed, and if NO, the process returns to step S32. If YES is determined in the step S36, the operation ends. If YES in step S32 (when the Rec button is operated a second time), the process proceeds to step S33 to perform the recording operation. When recording is completed, YES is determined in step S34, and the process proceeds to the next step S35. The address of the table of contents information recording portion of the disc is updated, and the operation ends.

The present invention is not limited to the above embodiments. For example, in the above optical disc recording apparatus, the recording / reproducing of ADPCM audio data in the B level stereo mode has been described, but other high efficiency. It is possible to record / reproduce compressed audio data in various modes in the encoding system in the same manner. Also,
Recordable optical discs are not limited to magneto-optical discs,
A phase change type optical disk or the like can also be used.

[0047]

According to the optical disk recording apparatus of the present invention, the optical disk recording apparatus records the information signal by the recording means on the optical disk in which the address information is recorded in advance and the information signal can be recorded optically. A recording standby mode setting means for moving the recording means to a recording standby mode based on address information corresponding to a recording operation start point recorded in a table of contents information recording section provided on the optical disc; Since the recording operation by the recording means is started by the control means when input by the input means for starting the recording operation in the state where the recording standby mode is set by the mode setting means, the rapid recording operation is performed. It can be started, and the beginning portion of the information signal to be recorded is not interrupted.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of an optical disk recording apparatus as an embodiment of the present invention.

FIG. 2 is a flow chart for explaining the operation of the embodiment shown in FIG.

3 is a flowchart showing a part following a connector A in the flowchart of FIG. 2 for explaining the operation of the embodiment shown in FIG.

FIG. 4 is a block diagram showing a schematic configuration of an optical disc recording apparatus as another embodiment of the present invention.

FIG. 5 is a flowchart for explaining the operation of another specific example.

FIG. 6 is a diagram for explaining the operation of the other specific example described above.
4 is a flowchart showing a part following a connector B in the flowchart of FIG.

[Explanation of symbols]

 1 ... Spindle motor 2 ... Magneto-optical disk 3 ... Optical head 4 ... Magnetic head 6 ... Servo control circuit 7 ... System controller 10 ... Input terminal 12 ... A / D converter 13 ... High efficiency encoding encoder 14, 22, 31 ... Memory 15 ... Encoder 16 ... Magnetic Head drive circuit 21 ... Decoder 23 ... High efficiency decoding decoder 24 ... D / A converter 26 ... Output terminal 30 ... Head feed motor 32 ... Light source (laser diode) drive circuit

Claims (1)

[Claims] 1. An optical disk recording device for recording an information signal on an optical disk capable of optically recording an information signal in which address information is recorded in advance, wherein the recording means is provided on the optical disk. The recording standby mode setting means for moving the recording means to the recording standby mode based on the address information corresponding to the recording operation start point recorded in the recording portion, and the operation modes of the recording start and the recording standby state are input. An input unit and a recording operation by the recording unit when the recording start is input by the input unit while the recording unit is in the recording standby state by the recording standby mode setting unit by the output from the input unit. An optical disc recording apparatus comprising: a control unit that outputs a control signal to start.