JPH0798900A - Recording medium and recording/reproducing device - Google Patents

Abstract

PURPOSE:To hold the data on the way of a game without requiring power and to read out the data repeatedly when the game is restarted by sticking a concentric circular shape magnetic recording medium on a substrate. CONSTITUTION:A clamper for fixing and rotating a ROM 1 is loaded on the central hole 2 of the CD-ROM 1. A read-in area 3 is formed on the inner peripheral side of the ROM l, and a data area 4 is formed on the outside of the area 3. A part where no clamper is abutted and no data of the ROM are recorded exists by 5mm extent a width on the inside of the area 3. The concentric circular and ring shape magnetic recording medium 5 is stuck to the part. The medium 5 is stuck to the prescribed position of the transparent substrate after the ROM 1 is formed, and further, a base film provided with a magnetic recording layer is formed in the ring shape. Then, by radiating a laser beam on the ROM 1, a recorded signal on the recording layer of the areas 3, 4 is read out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium and a recording / reproducing apparatus, and more particularly to a disc-shaped recording medium and a recording / reproducing apparatus.

[0002]

2. Description of the Related Art Conventionally, CD-ROM (Compact Disc)
-Read Only Memory (Compact Disc-Read Only Memory) and the like, game software in which various games are recorded on a recording medium such as a recording medium is commercially available, and is enjoyed by consumers.
However, in recent years, for example, RPGs (Roll Playing Games) and the like tend to be gradually lengthened due to demands of consumers.

Therefore, during the course of the game, the game is temporarily stopped for the sake of convenience, the power of the game machine is turned off, the power of the game machine is turned on again and again at a convenient time, and the game is restarted from the stopped state. There is a demand for game software and game machines that can be restarted.

In order to realize this, various data such as the relative coordinates of the character during the game, the character parameters (numerical data), and the score are held even while the power of the game machine is turned off. In addition, it is necessary to read these many times when the game is restarted.

For this reason, for example, a CD-ROM and an S
-RAM (Static-RAM; static ram) and battery are built in the cartridge, and the battery driven S
A system has been considered in which various data during the game is stored and held in the RAM.

[0006]

However, the above-mentioned cartridge system requires a cartridge, an S-RAM, and a battery in addition to a normal CD-ROM, which is complicated and expensive, and requires battery power for backup. There was a problem with.

Therefore, according to the present invention, a recording medium and a recording / reproducing apparatus which can retain data during the game without requiring electric power and can read these data many times when the game is restarted are simple and low cost. The purpose is to provide.

[0008]

In order to solve the above problems, according to the invention of claim 1, the disk-shaped substrate and the substrate are attached to the substrate, and the recorded signal is read by irradiating the laser beam. In a recording medium having a circular recording layer, a concentric magnetic recording medium is attached to a substrate.

According to the second aspect of the invention, an optical reproducing means for reading out the recorded signal of the recording layer by irradiating the annular recording layer attached to the disk-shaped substrate with laser light, and the optical reproducing means attached to the substrate. A magnetic recording means for magnetically recording on a concentric magnetic recording medium and a magnetic reproducing means for magnetically reproducing from the magnetic recording medium are provided.

[0010]

According to the invention having the structure described in claim 1, the recorded signal in the annular recording layer is read by irradiating the recording medium with laser light. Further, by applying a signal magnetic field to the concentric magnetic recording medium, new magnetic recording can be performed, and the recording signal recorded on the magnetic recording medium can be magnetically reproduced.

According to the invention of the structure described in claim 2,
By irradiating the recording medium with laser light by the optical reproducing means, the recorded signal in the annular recording layer is read. further,
Magnetic recording is newly performed by applying a signal magnetic field to the concentric magnetic recording medium by the magnetic recording means, and the recording signal recorded on the magnetic recording medium can be magnetically reproduced by the magnetic reproducing means. .

[0012]

FIG. 1 is a diagram showing a recording medium of a first embodiment of the present invention. The CD-ROM 1 of FIG. 1 has a signal reading surface,
That is, it is shown from the surface of a transparent substrate such as polycarbonate irradiated with laser light.

In the hole 2 at the center of the CD-ROM 1, the CD-R
A clamper (not shown) for fixing and rotating the OM1 is attached. A lead-in area 3 is formed inside the CD-ROM 1, and a data area 4 is formed outside the lead-in area 3.

Inside the lead-in area 3, there is a portion of about 5 mm in width where the clamper does not hit and the data of the CD-ROM is not recorded. So in this part,
It is formed by adhering or coating the concentric annular magnetic recording medium 5.

The magnetic recording medium 5 is adhered to a predetermined position of a transparent substrate after the CD-ROM 1 is molded, and a magnetic recording layer having a base film provided with a magnetic recording layer, such as a floppy disk, is formed into an annular shape. It is a thing. Alternatively, the magnetic recording layer may be directly applied to the transparent substrate without providing the base film. The transparent substrate may be a glass substrate.

According to this embodiment, by irradiating the CD-ROM 1 with a laser beam, the recorded signals in the recording layers of the lead-in area 3 and the data area 4 are read out. Further, magnetic recording can be newly performed by applying a signal magnetic field to the magnetic recording medium 5 by a recording mechanism similar to that of the conventional floppy disk device. Further, the recording signal recorded on the magnetic recording medium 5 can be magnetically reproduced by the reproducing mechanism similar to that of the conventional floppy disk device.

Therefore, when, for example, a role-playing game is recorded on the recording layer of the lead-in area 3, when the role-playing game is played halfway and the play is temporarily stopped, the data on the way is magnetically recorded on the magnetic recording medium 5. You can keep a record.

The magnetic recording medium 5 is capable of holding intermediate data without the need for a backup power source or the like, and can be inexpensively constructed without the need for a cartridge, S-RAM, battery or the like. There is.

Further, since the data on the way from the magnetic recording medium 5 can be reproduced at the time of resuming the play of the game and the game can be resumed from the state at the time of the stop, no matter how long the role-playing game is, the game machine can be repeated many times during the process. You can continue playing the game by turning off the power of the.

FIG. 2 is a diagram showing a recording medium of a second embodiment of the present invention. The CD-ROM 6 shown in FIG. 2 is shown from the cross section, in which the upper surface is the printing surface and the lower surface is the transparent substrate surface.

That is, an annular recording layer 8 is formed on a transparent substrate surface 7 of polycarbonate or the like, and a magnetic recording medium 9 is applied and attached on the recording layer 8 over substantially the front surface of the disk. No base film is used in this example. A normal printing surface 10 is formed on the magnetic recording medium 9 by a manufacturing method similar to that of a telephone card, and a game name, a character design, etc. are printed.

According to this embodiment, the same effect as that of the first embodiment can be obtained, and at the same time, a new magnetically recordable area can be widened, and a large amount of data can be magnetically recorded and reproduced. it can.

In each of the above-mentioned embodiments, the recording track may be concentric or spiral.

Next, an embodiment of the recording / reproducing apparatus for the above recording medium will be described with reference to FIGS.

FIG. 3 is a diagram showing a schematic structure of a recording / reproducing apparatus of a third embodiment of the present invention. Recording / reproducing apparatus 11 of FIG.
Is an example of a recording / reproducing apparatus for the CD-ROM 6,
A role-playing game, for example, is recorded in advance on the recording layer of the CD-ROM 6.

In FIG. 3, 12 is a housing, and 13 is a lid part that can be opened and closed. CD-ROM 6 is a disk motor 14
Is driven to rotate. The lower surface of the CD-ROM 6 is a transparent substrate surface, and laser light is emitted from the pickup 15.

The upper surface of the CD-ROM 6 is a printed surface on which a magnetic recording medium (not shown) is formed, and the magnetic head 16 floats and opposes it. Pickup 15 and magnetic head 1
6 is a CD-ROM driven by a tracking motor 17
Tracking is driven in the radial direction of 6.

This recording / reproducing apparatus 11 has a CD-ROM 6
The magnetic recording is performed on the pickup 15 which reproduces the already recorded signal of the recording layer by irradiating the recording layer attached to the substrate of 1. with the magnetic recording medium attached to the printed surface side of the substrate and the magnetic recording. And a magnetic head 16 for magnetically reproducing from the medium.

FIG. 4 is a block diagram showing the circuit arrangement of a recording / reproducing apparatus 11 according to the third embodiment of the present invention. 4, the same components as those in FIG. 3 are designated by the same reference numerals. That is, the recording / reproducing apparatus 11 has the above-mentioned disk motor 14, pickup 15, magnetic head 16, and tracking motor 17.

The disk motor 14, the tracking motor 17, and the pickup 15 (two-dimensional actuator) are driven and controlled by a servo circuit 18 in response to a command from a CPU (Central Processing Unit) 35. Also, the magnetic head 1
6 is also driven and controlled by the servo circuit 18.

As shown, the servo circuit 18 comprises a drive controller 19, a rotation control system 20, a tracking motor control system 21, and a pickup control system 22,
An error signal obtained by amplifying the detection signal from the pickup 15 by the RF amplifier 23 is used as a comparison reference signal.

The signal processing system is composed of an optical reproducing system 36 similar to a normal CD-ROM device, and a magnetic reproducing system 37 and a magnetic recording system 38 similar to a floppy disk device, respectively.

The RF amplifier 23 reproduces the recorded signal of the recording layer of the CD-ROM 6 detected by the pickup 15 and RF-amplifies it to generate an error signal and supplies the error signal to the servo circuit 18, and the amplified signal is waveformd. It is supplied to the shaping circuit 24.

The waveform shaping circuit 24 shapes this into a pulse of a predetermined level. The shaped pulse signal is supplied to the synchronizing circuit 25, and becomes a pulse signal at a predetermined timing synchronized with the reference clock.

The pulse signal having a predetermined timing is supplied to the decoding circuit 26. The decoding circuit 26 performs predetermined error correction processing and decoding processing using Reed-Solomon code, and the input pulse is decoded into original serial digital data.

The output digital data from the decoding circuit 26 is converted into parallel digital data by the serial-parallel conversion circuit 27 and is temporarily stored in the RAM 41 via the bus line 39.

The digital data stored in the RAM 41 is read out at any time as the game progresses. RAM41
The digital data stored in is retained when the power of the game machine is turned on, but is lost when the power is turned off.

Therefore, when the game is temporarily stopped in the middle of the game, the data in the middle is magnetically recorded on the magnetic recording medium of the CD-ROM 6 via the magnetic recording system 38. That is, various data such as the relative coordinates of the character in the course of the game, the parameter (numerical data) of the character, and the score stored in the RAM 41 are read out via the bus line 39, and the parallel-serial conversion circuit 32 performs serial digital conversion. Convert to data.

This serial digital data is sent to the modulator 3
3, the EFM modulation is performed, and the modulated signal is subjected to recording equalization processing according to the characteristics of the magnetic head 16 by the recording amplifier 34 and current amplification is performed.

Then, by passing the output recording current from the recording amplifier 34 through the magnetic head 16, each of the above data is magnetically recorded on the magnetic recording medium of the CD-ROM 6. Therefore, each data is retained on the magnetic recording medium even when the power of the game machine is turned off.

By the way, at the time of magnetic recording, the CD-recording is performed according to the rotation control of the disk motor 14 and the tracking control of the tracking motor 17 based on the command of the CPU 35.
Although a magnetic recording track is formed at a predetermined position on the printing surface side of the ROM 6, the track shape may be concentric or spiral. The rotation control may be constant linear velocity or constant angular velocity.

When the game play is restarted, the power of the game machine is turned on to reproduce the data in the middle of the game which is held on the magnetic recording medium, and the game can be restarted from the state when the game was stopped.

That is, when the magnetic head 16 is tracking-controlled to a predetermined position based on a command from the CPU 35, the reproduction amplifier 28 outputs a signal on the magnetic recording medium on the print surface side of the CD-ROM 6 detected by the magnetic head 16. A predetermined reproduction equalization process is performed, reproduction amplification is performed, and the amplified signal is supplied to the waveform shaping circuit 29.

The waveform shaping circuit 29 shapes this into a pulse of a predetermined level. The shaped pulse signal is supplied to the synchronizing circuit 30 and becomes a pulse signal at a predetermined timing synchronized with the reference clock.

The pulse signal having the predetermined timing is supplied to the demodulation circuit 31. The demodulation circuit 31 performs demodulation processing according to the modulation method, and the input pulse is demodulated to original serial digital data.

The output digital data from the demodulation circuit 31 is converted into parallel digital data by the serial-parallel conversion circuit 27 and is temporarily stored in the RAM 41 via the bus line 39.

The CPU 35 controls the relative coordinates of the character when the game is stopped, the character parameters (numerical data),
Various data such as points are read from the RAM 41, and control is performed so that the game is restarted from the state when the game was stopped.

As described above, according to this embodiment, the CD-RO
By irradiating M6 with a laser beam, the recorded signal in the recording layer is read by the optical reproducing system 36. Furthermore, by applying a signal magnetic field (recording current) to the magnetic recording medium by the magnetic recording system 38, new magnetic recording can be performed. Further, the magnetic reproducing system 37 can magnetically reproduce the recording signal recorded on the magnetic recording medium.

Therefore, when the role-playing game recorded on the recording layer is played halfway and the play is once stopped there, the data on the way can be magnetically recorded on the magnetic recording medium. The magnetic recording medium can hold data in the middle without the need for a backup power source, a cartridge or an SR
There is an advantage that an AM, a battery, etc. are not required and the cost can be reduced.

Further, since the data on the way from the magnetic recording medium can be reproduced at the time of resuming the play of the game and the game can be resumed from the state at the time of the stop, no matter how long the role-playing game, the game machine can be repeatedly played on the way. You can continue the game with the power off and sleep.

[0051]

As described above, according to the first aspect of the invention, the recorded signal is read from the annular recording layer, and new magnetic recording is performed on the concentric magnetic recording medium to magnetically reproduce the recorded signal. Therefore, for example, when the play of the game recorded on the recording layer is temporarily stopped on the way, the data on the way can be magnetically recorded on the magnetic recording medium. The magnetic recording medium can hold the data in the middle without the need for a backup power source and can be constructed at a low cost. When the game is resumed, the data in the middle is reproduced and the state at the time of the stop is reproduced. There is a feature that you can restart the game from.

According to the second aspect of the present invention, the recorded signal on the annular recording layer can be read by the optical reproducing means and the magnetic recording means can newly perform magnetic recording on the concentric magnetic recording medium. Since it can be magnetically reproduced by the magnetic reproducing means, for example, when the game once recorded on the recording layer is stopped halfway, the data in the middle can be magnetically recorded on the magnetic recording medium. The magnetic recording medium can hold the data in the middle without the need for a backup power source and can be constructed at a low cost. When the game is resumed, the data in the middle is reproduced and the state at the time of the stop is reproduced. There is a feature that you can restart the game from.

[Brief description of drawings]

FIG. 1 is a diagram showing a first embodiment of the present invention.

FIG. 2 is a diagram showing a second embodiment of the present invention.

FIG. 3 is a diagram showing a structure of a third exemplary embodiment of the present invention.

FIG. 4 is a block diagram of a third embodiment of the present invention.

[Explanation of symbols]

 1,6 CD-ROM 5,9 Magnetic recording medium 7 Substrate 8 Recording layer 11 CD-ROM device 36 Optical reproduction system 38 Magnetic recording system 37 Magnetic reproduction system

Claims (2)

[Claims] 1. A recording medium comprising a disk-shaped substrate and an annular recording layer which is attached to the substrate and from which a recorded signal is read by irradiating a laser beam, the substrate having a concentric circular shape. A recording medium having a magnetic recording medium attached thereto. 2. An optical reproducing means for reading an already recorded signal of the recording layer by irradiating an annular recording layer attached to the disk-shaped substrate with laser light, and a concentric magnetic recording attached to the substrate. A recording / reproducing apparatus comprising magnetic recording means for magnetically recording on a medium and magnetic reproducing means for magnetically reproducing from the magnetic recording medium.