JPH0554460A - Composite medium disk and recording and reproducing device thereof - Google Patents

Abstract

PURPOSE:To allow data write/read for information storing means without reference to the rotation of an optical disk by providing ring shaped terminals in a number corresponding to the input/output terminals of the information storing means in the center part of the optical disk body. CONSTITUTION:The ring shaped terminals 14a-14f are provided concentrically on one face side of the optical disk 10, and each input/output terminal of a solid memory 12 and each ring shaped terminal 14a-14f are connected with lead wires 13a-13f. On this face side of the optical disk 10 on the side of a clamper 15, contact terminals 16a-16f are arranged side by side along the radius direction of the optical disk 10 and simultaneously provided in accordance with the spacing of each ring shaped terminal 14a-14f. Consequently, the data recording/reproducing for the information storing means can be performed without reference to the rotation of the optical disk at the time of clamping via the contact terminal of the clamper placed at a fixed position against the optical disk.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite medium disk in which a solid-state memory is integrally provided on an optical disk and a recording / reproducing apparatus therefor.

[0002]

2. Description of the Related Art Generally, optical discs are roughly classified into a read-only type and a writable type according to their properties. The writable type is a write-once type (WOR) that enables writing only once.
M) and enable erasing and rewriting (E-DRAW)
Is divided into In addition, there are a magneto-optical recording / reproducing system and a phase change type recording / reproducing system as a recording / reproducing system of the type that enables such erasing and rewriting.

By the way, when data recorded by these methods is read from an optical disc, for example, when the number of recordings is small or random recording is performed, a recording area of the disc management information such as the final recording position is formed. Since it does not exist, there is a drawback that it is difficult to access the final recording position at high speed. Further, for example, in the case of a disc on which game software is recorded, there is a disadvantage that it is inconvenient because there is no management information storage area for recording the progress of the game and the like.

As a solution to such a drawback, Japanese Patent Laying-Open No. 1-217746 discloses a composite medium disc having a magnetic material provided on one side of the optical disc as shown in FIG. As shown in the figure, an optical reproducing / recording surface is provided on the B side b of the composite medium disk (hereinafter referred to as an optical disk) 1. A magnetic body 2 is formed by coating or vapor deposition on the central portion of the optical disk 1 on the side A of the surface.

When the optical disk 1 clamped by the clamper 7 is rotated by the motor 6, the optical head 3 moves in the radial direction of the optical disk 1 and the information is read. In addition, the magnetic substance 2 on the A side a of the optical disc 1
The writing / reading of information to / from the magnetic head 4 is performed by the magnetic head 4 mounted on a slider (not shown) that is movable in the radial direction of the optical disc 1. Disc management information and the like can be recorded on the magnetic body 2, and the information can be read as necessary. Thus, it is not only easy to form the magnetic body 2 on one side of the optical disk 1 by coating or vapor deposition, but also it is easy to access the written information.

[0006]

However, the rotational speed of the optical disk 1 at the time of reproduction / recording by the above-described conventional optical head 3 and magnetic head 4 is different from that of the B-side due to the difference in the reproduction / recording specifications. The side b is, for example, 1800 rpm, and the A side A is, for example, 360 rpm.
It is said to be rpm. Therefore, it is necessary to switch the control of the servo system of the motor 6.

Therefore, for example, when the optical head 3 is reproducing the B side b, the information cannot be recorded / reproduced by the magnetic head 4 on the magnetic body 2 on the A side a. There is.

The present invention has been made in consideration of such circumstances, and writes data to the information storage means regardless of whether the optical recording area of the optical disc is being reproduced or the optical disc is stopped. It is an object of the present invention to provide a composite medium disc capable of reading / writing and a recording / reproducing device thereof.

[0009]

In the composite medium disc of the present invention, an information storage means is provided in a part of the optical disc body, and the input / output of the information storage means is concentric with the optical disc body in the central portion of the optical disc body. It is characterized in that a number of ring-shaped terminals corresponding to the terminals are provided.

Further, the recording / reproducing apparatus of the present invention clamps the central portion of a composite medium disc in which a number of ring-shaped terminals corresponding to the input / output terminals of the information storage means are provided concentrically with the optical disc body. In a recording / reproducing apparatus for recording / reproducing information by clamping by means of a clamp, a contact terminal is provided corresponding to the ring-shaped terminal on the surface side of the clamper that abuts on the central portion of the optical disk body, and the information input means It is characterized in that the information is input from the contact terminal and the ring-shaped terminal.

[0011]

In the composite medium disc of the present invention, the information storage means is provided in a part of the optical disc body, and a ring shape is concentrically formed with the optical disc body in the central portion of the optical disc body so as to correspond to the input / output terminals of the information storage means. Since the terminals are provided, data can be input and output through these terminals, and in addition to optical recording on the recording surface of the optical disc body,
Since storage of management information etc. in the information storage means is added,
It is possible to record a large amount of information on one disc.

Further, in the recording / reproducing apparatus of the present invention, since the contact terminal is provided on the surface side of the clamper which abuts on the central portion of the optical disk body, the contact terminal is provided corresponding to the ring-shaped terminal on the optical disk body side, so that the clamper is held against the clamper during clamping. Even if the relative positions of the optical disks are different, the relative position of each contact terminal with respect to each ring terminal is uniquely determined, and each ring terminal and each contact terminal can be reliably connected. Furthermore, recording / reproducing of information to / from the information storage means is performed through the contact terminals of the clamper placed at a fixed position with respect to the optical disc during clamping, so that it can be performed regardless of the rotation of the optical disc in the optical recording method. it can.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 and 2 show an embodiment of a composite media disc. As shown in FIG. 1, an optical recording area 1 of a composite medium disc (hereinafter referred to as an optical disc) 10
A solid-state memory (EEPROM) is provided in the central portion outside 1
12 are buried. The solid-state memory 12 includes, for example, a reference voltage input terminal VDD, a data input terminal DI, a data output terminal DO,

[Outer 1] A ground terminal GND is provided.

Here, a voltage of, for example, 5V is applied as a reference voltage to the reference voltage input terminal VDD. External data is input to the data input terminal DI. Data is output to the outside from the data output terminal DO.

[Outside 2] , A pulse of "L", for example, is input at the time of chip selection. When this terminal is "H", the built-in sequential controller is reset, so this terminal is set to "H" before execution of one mode.

[Outside 3] Is input with a clock, input data is read at the rising edge of the clock, and data is output in synchronization with the falling edge.

As shown in FIG. 3, ring-shaped terminals 14a to 14f are provided on one side of the optical disc 10 as shown in FIG.
Are provided in concentric circles. The input / output terminals of the solid-state memory 12 and the ring-shaped terminals 14a to 14f are connected via lead wires 13a to 13f. Note that reference numerals 16a to 16f in the figure denote contact terminals on the side of the clamper 15 which will be described later. Further, reference numerals 16g to 16l indicate dummy pins described later.

FIG. 4 simply shows an example of the configuration of the recording / reproducing apparatus of the present invention. The clamper 15 shown in FIG.
Is rotatably supported by, for example, an end of an elastic arm (not shown), and abuts on the central portion of the optical disk 10 to press the central portion against a turntable (not shown). Further, the protrusion 15A provided in the central portion of the clamper 15 has the central hole 10A of the optical disc 10.
The optical disc 10 is positioned with respect to the clamper 15 by fitting the optical disc 10 into the clamper 15.

Contact terminals 16a to 16f are juxtaposed along the radial direction of the optical disc 10 on the surface side of the clamper 15 that comes into contact with the central portion of the optical disc 10. The contact terminals 16a to 16f are the ring-shaped terminals 14a to 14f.
It is provided according to the interval of f. In addition, clamper 1
On the side of the surface of the optical disc 10 that contacts the central portion of the optical disc 10, dummy pins 16g to 16g having the same shape as the contact terminals 16a to 16f are formed.
16l is provided on the same line as each of the contact terminals 16a to 16f. Similarly, these dummy pins 16g to 16l
The ring-shaped terminals 14a to 14f are provided at intervals.

External terminals 17 are provided on the upper surface of the clamper 15.
a to 17f are provided, and the contact terminals 16a to 16f are provided.
f and the external terminals 17a to 17f are the lead wires 16A to 1
It is connected via 6F. In addition, each external terminal 17a
.About.17f are electrically connected to the data input section 20 via a signal transmission medium 19 such as a lead wire.

The contact terminals 16a to 16f and the dummy pins 16g to 16l are, as shown in FIG.
It is biased downward by 8. Thereby, the contact terminals 16a to 16f are connected to the ring-shaped terminals 14a to 14f.
Since it is pressed against, the electric connection is surely made. In addition, the dummy pins 16g to 16l are also similarly set.
The ring-shaped terminals 14a to 14f are pressed against each other. Thereby, the contact terminals 16a to 16f and the dummy pin 16 are provided.
Since the distance between the central portion of the optical disk 10 and the contact surface of the clamper 15 is kept constant by the reaction of each of g to 16l, as a result, each of the contact terminals 16a to 16f with respect to each of the ring-shaped terminals 14a to 14f. And press it evenly.

Data read / write from / to the solid-state memory 12 of the optical disc 10 having the above-described structure is performed as follows. First, the solid-state memory 1 in this embodiment
Reference numeral 2 is, for example, a clock-synchronized serial input format, which reads data at the rising edge of the clock and outputs the data in synchronization with the falling edge of the clock. The data is divided in units of 8 bits. The first 8 bits specify a mode, the next 8 bits specify an address, and the subsequent 16 bits specify input / output data.

The modes are write, read, write enable,
It is possible to specify five types of write protection and status output. The writing time is set by the built-in timer, and whether or not writing is in progress is determined by the data output terminal DO after setting the status output mode.

When the optical disk 10 is clamped by the clamper 15, the protrusion 15A of the clamper 15 is fitted into the center hole 10A of the optical disk 10 to position the optical disk 10 with respect to the clamper 15. At this time, the contact terminals 16a to 16a of the clamper 15
Since 6f is provided along with the interval between the ring-shaped terminals 14a to 14f, each contact terminal 1 is clamped.
Correspondence between 6a to 16f and the ring-shaped terminals 14a to 14f can be ensured.

The ring-shaped terminals 14a-14f are
Since the optical disc 10 is provided concentrically with the optical disc 10, even if the relative position of the optical disc 10 to the clamper 15 is different, the relative position of each contact terminal 16a to 16f to each ring-shaped terminal 14a to 14f is uniquely determined. Be done. Further, the contact terminals 16a to 16f are biased downward by the coil spring 18, so that the electrical contact with the ring-shaped terminals 14a to 14f is ensured. Furthermore, each dummy pin 16g to 16l is also a coil spring 1.
Since it is urged downward by 8, the reaction between each of the contact terminals 16a to 16f and the dummy pins 16g to 16l maintains a constant distance between the central portion of the optical disk 10 and the contact surface of the clamper 15, resulting in Each of the contact terminals 16a to 16f is a ring-shaped terminal 14
Press uniformly against a to 14f.

When the optical disk 10 rotates in this state,
Each contact terminal 16a-16f and each ring-shaped terminal 14a-1
Both the clamper 15 and the optical disk 10 rotate at the same speed without causing a positional deviation from 4f. At this time, when the data to be written in the solid-state memory 12 is transmitted from the data input section 20, the data is transferred to the external terminal 17b and the lead wire 1.
6B, the contact terminal 16b, the ring-shaped terminal 14b, and the lead wire 13b are taken in by the data input terminal DI of the solid-state memory 12. However, the reading of the data at this time is

[Outside 4] On the rising edge of the clock to.

On the other hand, in the reading of data, in synchronization with the fall of the clock, the terminal device side is passed from the data output terminal DO through the lead wire 13c, the ring-shaped terminal 14c, the contact terminal 16c, the lead wire 16C, and the external terminal 17c. It is performed by sending it to. At this time, reading or writing of information to the optical recording area 11 is performed by an optical head (not shown) that moves in the radial direction of the optical disc 10.

Thus, in this embodiment, the optical disc 1
The solid-state memory 12 is provided in the central portion outside the optical recording area 11 of 0
And the ring-shaped terminal 1 on one side of the optical disc 10.
4a to 14f are provided concentrically with the optical disk 10, and each input / output terminal of the solid-state memory 12 and each ring-shaped terminal 14a to 1 are provided.
4f was connected by lead wires 13a to 13f. Further, contact terminals 16a to 16f are arranged in parallel along the radial direction of the optical disk 10 on the contact surface side of the optical disk 10 on the side of the clamper 15, and each ring-shaped terminal 14a to 14f.
It was provided according to the interval of f.

As a result, even when the relative position of the optical disk 10 with respect to the clamper 15 is different, the contact terminals 16a to 16 with respect to the ring-shaped terminals 14a to 14f.
The relative position of f is uniquely determined. Further, since the contact terminals 16a to 16f are urged downward by the coil spring 18, electrical contact with the ring-shaped terminals 14a to 14f is ensured. Further, since each of the dummy pins 16g to 16l is also urged downward by the coil spring 17, the distance between the central portion of the optical disk 10 and the contact surface of the clamper 15 due to the reaction of each of the contact terminals 16a to 16f and the dummy pins 16g to 16l. Is kept constant, and as a result, each of the contact terminals 16a to 16f is evenly pressed against each of the ring-shaped terminals 14a to 14f.

Further, in this embodiment, the contact terminals 16a to 16f of the clamper 15 that rotates at the same speed as the optical disk 10 for writing / reading information to / from the solid-state memory 12 and the ring-shaped terminals 14a to 14f on the optical disk 10 side are connected. Since the connection is performed, it is possible to write / read information to / from the solid-state memory 12 at the same time as reading / writing information to / from the optical recording area 11 by the optical head. Furthermore, it is possible to write / read information to / from the solid-state memory 12 even when the rotation of the optical disc 10 is stopped.

Further, in this embodiment, since the solid-state memory 12 is embedded in the central portion of the optical disk 10 which is out of the optical recording area 11, there is no obstruction to the movement of the optical head. The present invention is not limited to the area 11 on one side, but can be applied to the area 11 on both sides.

Furthermore, in this embodiment, the solid-state memory 12 is used.
However, the semiconductor thin film memory may be formed in a part of the optical disc 10 by a well-known semiconductor thin film forming technique without being limited to this example.

Further, in the present embodiment, the solid-state memory 12 has been described by taking the non-volatile one as an example. However, the solid-state memory 12 is not limited to this, and a volatile one may be used. Attach it to a part and get the backup power from this sheet battery.

Further, in this embodiment, the solid-state memory 12 is set to 1
Although the case where the solid-state memories 12 are embedded has been described, the present invention is not limited to this example, and two or more solid-state memories 12 may be embedded, in which case the amount of information to be recorded can be further doubled.

[0033]

As described above, according to the composite medium disc and the recording / reproducing apparatus thereof of the present invention, the information storage means is provided in a part of the optical disc body, and the center portion of the optical disc body is concentric with the optical disc body. In addition, ring-shaped terminals are provided corresponding to the input / output terminals of the information storage means, and data is input / output through these terminals. Therefore, in addition to optical recording on the recording surface of the optical disc body,
Since storage of management information etc. in the information storage means is added,
It is possible to record a large amount of information on one disc. Further, since contact terminals are provided on the surface side of the clamper that abuts the central portion of the optical disk body so as to correspond to the ring-shaped terminals on the optical disk body side, even when the relative position of the optical disk to the clamper is different during clamping. The relative position of each contact terminal with respect to each ring terminal is uniquely determined, and each ring terminal and each contact terminal can be connected reliably. Furthermore, recording / reproducing of information to / from the information storage means is performed through the contact terminals of the clamper placed at a fixed position with respect to the optical disc during clamping, so that it can be performed regardless of the rotation of the optical disc in the optical recording method. it can. As a result, writing / reading of data to / from the information storage means can be performed regardless of whether the optical recording area of the optical disc is being reproduced or the optical disc is stopped.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of a composite media disc of the present invention.

FIG. 2 is a cross-sectional view showing a buried state of the solid-state memory of FIG.

3 is a plan view showing ring-shaped terminals of the composite medium disc of FIG. 1. FIG.

FIG. 4 is a diagram showing an embodiment of a recording / reproducing apparatus of the present invention.

5 is a diagram showing the contact terminal of FIG. 4;

FIG. 6 is a perspective view showing an example of a conventional composite medium disc.

[Explanation of symbols]

 10 Optical Disk 11 Optical Recording Area 12 Solid State Memory 14a to 14f Ring Terminal 15 Clamper 20 Data Input Section

Claims (2)

[Claims] 1. An information storage means is provided in a part of an optical disk body, and a ring-shaped terminal, which is concentric with the optical disk body, is provided in a central portion of the optical disk body in a number corresponding to input / output terminals of the information storage means. A composite media disc characterized by the following. 2. A composite medium disk having a number of ring-shaped terminals corresponding to the input / output terminals of the information storage means provided concentrically with the optical disk body, and information is recorded by clamping the central portion of the composite media disk with a clamper. In a recording / reproducing apparatus for performing reproduction, a contact terminal corresponding to the ring-shaped terminal is provided on the surface side of the clamper that comes into contact with the central portion of the optical disk body, and the input of information from the information input unit is performed by the contact terminal. A recording / reproducing apparatus characterized in that the recording and reproducing are performed through a terminal and a ring-shaped terminal.