JP2702838B2 - Optical disc recording method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording method for an optical disk such as a WO (write-once) disk or a magneto-optical disk, and in particular, records information such as a recording start time and a recording end time of each track on the optical disk. About the method.

[0002]

2. Description of the Related Art When recording music or the like on a WO disk or a magneto-optical disk, a track number is provided for each recording, and recording information such as a recording start time and a recording end time of each track number is recorded on the disk. A recorded one corresponding to the TOC (table of contents) of the CD is created.

Conventionally, in order to perform such recording, each time a recording end key is pressed, the recording information recorded at that time is written on a disk. According to such a method, it takes time to write the recording information after the recording is stopped, so that the next recording cannot be started immediately, which is inconvenient.

In order to avoid such inconvenience, when recording is stopped, recording information is written to the disk and stored in the memory first, and when the disk is ejected from the recording device, the recording information stored in the memory is written to the disk. There was also a way to write. According to this method, if the power is turned off before the disk is taken out, the recorded information stored in the memory is lost, so that it is necessary to back up the memory with a battery and the cost increases.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to start recording immediately after stopping recording without using a battery backup, and furthermore, each time. It is an object of the present invention to provide an optical disk recording method capable of recording the above recording information on a disk.

[0006]

According to the present invention, there is provided an optical disk recording method for recording recording information for each track in a program memory area of an optical disk. When pressed, the recording of the optical disk is stopped, and the recording information of the track being recorded at that time is stored in the memory of the optical disk recording device. When the second recording stop key is pressed during the recording of the optical disk, The recording information of the track being recorded at that time and the recording information of each track, which is stored in the memory of the optical disk recording device and not yet recorded on the optical disk, are recorded in the program memory area of the optical disk. Is what you do.

[0007]

During recording on the optical disk, the recording start time is stored in the memory of the optical disk recording device, and the current recording location is read from the absolute time previously recorded on the track of the optical disk. By pressing the first recording stop key, the recording start time and the final absolute time, that is, the recording end time are instantaneously stored in the memory of the optical disk recording device as the recording information of the track.

As described above, each time the first recording stop key is pressed, the recording information of each track is stored together with the recording information of the currently recording track when the second recording stop key is pressed. Will be recorded.

When the first recording stop key is pressed, the recording information is not recorded on the optical disk, so that the recording of the next track can be started immediately.

[0010]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a WO (Write On) used in the embodiment of the present invention.
ce) is a block diagram illustrating a configuration of a disk device. In the figure, reference numeral 1 denotes a WO disk, which is mounted on a tray 2 and is moved above a spindle motor 5 by rotation of a loading motor 3 controlled by a microcomputer 15 and is fixed to a rotating shaft of the spindle motor 5. Clamped to staple.

The spindle motor 5 rotates the WO disk 1, and a focus error signal (FE) and a tracking error signal (TE) are input to the servo circuit 14 from a light receiving element of the optical pickup 6. The servo circuit 14 detects the tracking coil supply current (T
S), and a wobble signal is extracted.

Further, the servo circuit 14 generates a focusing coil supply current (FS) from the focus error signal. The laser spot tracks the pre-groove of the waveform when the current flows through the tracking coil of the actuator of the optical pickup 6, and the focus of the laser spot is adjusted to the signal surface of the WO disk by the current flowing through the focusing coil.

A wobble signal having the same cycle as the pregroove waveform is input to an ATIP decoder
The (absolute time) signal is demodulated and the microcomputer 1
5 is output. The microcomputer 15 recognizes the position of the laser spot on the WO disk by the ATIP.

Reference numeral 8 denotes a linear motor for feeding the optical pickup 6 in the radial direction of the WO disk. The linear motor 8 is driven by a current (LM) generated from a DC component of a tracking error signal and has a sensor coil for detecting a speed. SC) is fed back to the servo circuit 14.

The wobble signal also indicates the linear velocity of the WO disk, and the servo circuit 1 uses this signal as a reference.
Reference numeral 4 controls the current of the spindle motor 5, and CLV (constant linear speed) control is performed.

The laser diode of the optical pickup 6 is supplied with a current by a laser diode driver 9, and the current is modulated by the output of the EFM encoder 11, and the laser light emitted from the laser diode corresponds to the EFM signal on the WO disk. A pit row is formed.

The EFM encoder 11 has an input terminal 10
The audio digital input (D) or the analog input R channel (R) and L channel (L) are input by selecting a digital input converted by an AD converter (A / D) by a switch and modulated into an EFM signal. You. At that time, the signal input from the microcomputer 15 is incorporated into the subcode of the EFM signal. The EFM
The signal is the laser diode driver 9 as described above.
Modulates the output current.

The microcomputer 15 has a built-in ROM and RAM and controls the entire apparatus. In addition, a signal is input from the keyboard 16, and further, a signal is output to the display 17 to display an operation state of the apparatus. The keyboard 16 includes a pause key as a first recording stop key and a stop key as a second recording stop key.

Although the recording operation of the WO disk has been described above, when reproducing the signal recorded on the WO disk, the same operation as that of the CD player is performed. At that time, the laser diode driver 9 outputs a constant current,
The light receiving element of the optical pickup 6 obtains an RF signal, a tracking error signal (TE), and a focus error signal (FE) from the reflected light from the pit row.

The RF signal is input to the EFM decoder 12, where the audio digital signal and the subcode are demodulated. The audio digital signal is amplified and waveform-shaped by an amplification / waveform shaping circuit (DO), output from the D terminal of the output terminal 13, and processed by a digital filter (DF).
It is converted to an analog signal by a DA converter (D / A),
Further, the signal is amplified by an amplifier (AO) and output to the analog terminals R and L of the output terminal 13. The demodulated subcode is input to the microcomputer 15.

Next, referring to FIG. 2 and FIG.
A routine at the time of stopping recording of the disk device will be described. First, in step S1, when the recording key is pressed, the process proceeds to step S2, where the previous recording end position is searched, and the process proceeds to step S3. In step S3, recording is performed by increasing the laser power. Next, step S
The process proceeds to step 4, where it is determined whether or not there is a key input. If there is a key input, the process proceeds to step S5. If not, the process proceeds to step S8.

In step S8, after other processing such as interruption is performed, step S4 is repeated. During this time, recording on the WO disk is continued.

In step S5, it is determined whether or not the pressed key is a stop key. If the key is a stop key, the process proceeds to step S9. If not, the process proceeds to step S6.
Move to In step S6, it is determined whether or not the pressed key is a pause. If the pressed key is a pause key, the process proceeds to step S11; otherwise, the process proceeds to step S7.

In step S7, it is determined whether or not the pressed key is a key other than the stop key and the pause key. If it is likely to be determined, the process proceeds to step S18. If not, the process proceeds to step S8.

In step S9, the razor power is lowered, and the routine goes to step S10. In step S10, the recording information of the track number recorded this time and the recording information of the previous track number and the additional recording position information stored in the memory are written into the program memory area of the disk, and then the apparatus is stopped.

In step S11, the razor power is lowered, and the routine goes to step S12. In step S12, the recording information of the track number recorded this time and the additional recording position information are stored in the memory, the state is set to the pause state, and the process proceeds to step S13. In step S13, it is determined whether or not there is a key input. If there is a key input, the process proceeds to step S14. If there is no key input, the pause state of step S12 is continued.

In step S14, it is determined whether or not the pressed key is a pause key. If the key is a pause key, the flow shifts to step S2. If not, the flow advances to step S15.
Move to Each time the pause key is pressed, the pause operation and the pause release operation are alternately repeated.

In step S15, it is determined whether or not the pressed key is a stop key. If the key is a stop key, the process proceeds to step S9. If not, the process proceeds to step S9.
Move to 16. In step S16, it is determined whether or not the pressed key is a key other than the stop key and the pause. If so, the process proceeds to step S17. If not, the process proceeds to step S12 and the pause state is continued. .

In step S17, after processing of another key is performed, the flow shifts to step S12 to repeat the pause state. In step S18, the process proceeds to step S4 after other keys are processed.

In this way, every time the stop key is pressed, the record information of the track number of the program area recorded up to that time is recorded in the program memory area on the inner circumference side of the disk. When the recording on the disc is completed, a recording end process is performed, and the same TOC (CD) as the CD is inserted into the lead-in adjacent to the inner circumference side of the program area based on the record information of each track number recorded in the program memory area. Table of contents) is recorded, and a lead-out is recorded on the outer peripheral side of the program area, and a recorded disc similar to a CD is produced.

Although the embodiment is constructed as described above, the invention is not limited to this.
The present invention can also be applied to a disc that does not produce a disc.

[0032]

According to the recording method for an optical disk of the present invention, when recording is repeatedly performed, the first recording stop key is pressed, the recording is temporarily stopped, and the recording information is only stored in the memory and recorded on the disk. Since no information is recorded, the next recording can be started immediately.

When the second recording stop key is pressed, all the recording information including the recording information stored in the memory is recorded on the disk, so that the recording information is not lost even if the power is turned off.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a WO disk device used in an embodiment of the present invention.

FIG. 2 is a flowchart showing a routine portion of the WO disk device when recording is stopped.

FIG. 3 is a flowchart showing a routine portion of the WO disk device when recording is stopped.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 CD-WO disk 2 Tray 3 Loading motor 5 Spindle motor 6 Optical pickup 7 ATIP decoder 8 Linear motor 9 Laser diode driver 10 Input terminal 11 EFM encoder 12 EFM decoder 13 Output terminal 14 Servo circuit 15 Microcomputer

Claims (1)

(57) [Claims] In an optical disk recording method for recording recording information for each track in a program memory area of an optical disk, when a first recording stop key is pressed during recording on the optical disk, recording of the optical disk is stopped. At that time, the recording information of the track being recorded is stored in the memory of the optical disk recording device. A recording method for an optical disk, characterized by recording, in a program memory area of an optical disk, recording information and recording information for each track, which is stored in a memory of the optical disk recording device and has not been recorded on the optical disk.