JPH11312377A - Optical disk device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a means capable of performing a recording later at low cost by providing a means which records data and reproduces the data in the recording and reproducing means of digital data which is formed at one part of a reproduction-only optical disk to record necessary data. SOLUTION: A power source part with an antenna and a data processing part with an antenna are provided in the inside of the digital data storage means 3 eccentric circularly formed with a reproduction-only optical disk 1. A recording part 27 stores data and addresses from busses 24 in a memory while making the data processing part of the storage means 3 process them via an antenna 23 with the control of a control part 29. Moreover, similarly, a reproduction part 28 reproduces the data and the addresses stored in the memory of the storage means 3 to transmit them to the busses 24 and a power source driving circuit 30 supplies a power source to the storage means 3 only at the time the recording and the reproduction of the storage means 3. Thus, it is made possible to record the processed result of the data of the optical disk 1 which are decoded in an optical signal processing part 26 in the storage means 3 and to preserve them in the storage means 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disk apparatus for recording / reproducing an optical disk having recording / reproducing means for digital data on a part of a recording surface.

[0002]

2. Description of the Related Art Among optical disks, a CD-ROM in which a compact disk (hereinafter abbreviated as CD) which is an optical disk for music reproduction is applied for data recording for a computer.
Is becoming widely used.

[0003]

A CD-ROM is made of plastic and can be used to form a disk with data recorded in large quantities at low cost using a mold. Data cannot be recorded. Therefore, it is inconvenient to process data on the disk and record the result on the disk and save it. Of course, there are recordable optical disks, but optical disks cannot be made by the above-described method, which requires a complicated manufacturing process and is expensive. When data is recorded and shipped, the data must be recorded on each disk. Further, in order to record, a larger optical output of the optical head is required than in a device dedicated for reproduction, and the price of the recording / reproducing device is increased.

[0004] It is an object of the present invention to provide a low-priced means for recording data on a read-only optical disk later.

[0005]

Therefore, in the present invention, digital data recording / reproducing means is formed in a part of a read-only optical disc, and means for recording / reproducing data are provided.

[0006]

By recording data necessary for recording / reproducing digital data formed on a part of a read-only optical disk, for example, data on the disk is processed and the result is written on the disk. Can be recorded and stored.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings.

FIG. 1 shows an embodiment of the optical disk of the present invention. Digital data storage means 3 is formed concentrically with the recording track 2 of the optical disk 1. Reference numeral 4 denotes a hole for mounting the disc on the recording / reproducing apparatus. FIG. 2 shows an outline of the internal functions of the digital data storage means 3.
The cross section is shown in FIG. Inside the digital data storage means 3 for storing digital data, it is necessary to rectify and smooth the output of the antenna 5 and the antenna 5 for electromagnetically coupling with an external antenna and inputting power. A power supply unit 6 for supplying power, an antenna 7 for inputting and outputting digital data, a data processing unit 8 for processing digital data input and output by the antenna 7, and a digital data unit
A memory 9 for storing data. The antennas 5 and 7 are arranged circumferentially near the surface of the digital data storage means 3, as shown in FIG. 3, and are made of a magnetic material to increase the efficiency of the antenna and to avoid mutual interference between the antennas 5 and 7. 10 is attached. Reference numeral 12 denotes a circuit board, which is fixed to the optical disk on the surface on this side. The reference numeral 11 denotes a processing having a slippery surface such as fluororesin processing so as to protect the antennas 5 and 7 and to operate the digital data storage means 3 even when the digital data storage means 3 is brought into contact with the antenna on the apparatus side. Layer.

FIG. 4 is a block diagram showing the internal arrangement of the data processing section 8.
Shown in The operation will be described. Required power is supplied from the antenna 5. First, data recording will be described. When a command to record data, data to be recorded, and its address are input from the antenna 7, the command detection unit 13 extracts a command from the input data, and the command is sent to the control unit 14. Given. According to the command,
The data detecting section 15 detects and stores the data to be stored from the data, and detects the address of the memory to be recorded and sends it to the data recording section 16. The data recording section 16 gives the address to the memory 9 and records the data stored in the data detecting section 15 in the memory 9. Next,
The reproduction of the data will be described. A command to reproduce data from the antenna 7 and the address and data of the first data to be reproduced.
When the amount of data is input, a command is extracted by the command detection unit 13 from the input data, and the command is given to the control unit 14. In response to the instruction, the data reproducing unit 17 gives the address to be reproduced to the memory 9 and the memory 9
And reproduces and stores the data stored in. The data output unit 18 outputs the data stored in the data reproducing unit 17 to the antenna 7.

FIG. 7 shows an embodiment of an optical disk recording / reproducing apparatus according to the present invention. The signal obtained from the optical pickup provided on the actuator 25 is amplified by the optical signal processing unit 26, the data is demodulated, error correction is performed, and the bus 2
4 is output. The recording of digital data will be described.
When data and addresses to be recorded in the memory 9 on the optical disk are input from the bus 24 to the recording unit 27, a recording instruction is input to the control unit 29, and when the recording instruction is given to the recording unit 27, the recording unit Numeral 27 transmits a recording command, data to be recorded, and an address to the optical disk via the antenna 23. The data is recorded on the optical disk by the data. Next, reproduction of digital data will be described. When a reproduction command is input to the control unit 29, the command is further supplied to the reproduction unit 28, and the address of the first data to be reproduced and the amount of data are supplied to the reproduction unit 28. Numeral 28 transmits a reproduction command, the address of the first data to be reproduced, and the amount of data to the optical disk via the antenna 23. In addition, the antenna 2
The data transmitted via 3 is stored, and the data is output to the bus 24. The power supply drive circuit 30 supplies power to the antenna 23 only when performing the above-described recording or reproduction processing.
To the optical disk via

The structure of the antenna 23 will be described. FIG. 8 shows a cross section thereof. An antenna 20 for power transmission and an antenna 39 for data transmission are circumferentially provided at positions corresponding to the positions of the antennas on the optical disk. Further, a magnetic body 37 is provided to increase the efficiency of the antenna and to prevent mutual interference between the antennas 20 and 39. 38 protects the antennas 20 and 39 and further protects the antenna 2 on the device side.
3 is a layer processed with a slippery surface such as a fluororesin processing so that the digital data storage means 3 can be operated in contact with the digital data storage means 3. The antenna 23 is supported by a support member 35 and a spring 34 coupled to the apparatus, and absorbs a change in height due to rotation of the optical disk in a contact state. Thus, the magnetic materials 10 and 37 are provided and the layer 1 is formed.
In order to rotate the optical disc by contacting the optical discs 1 and 38, data can be recorded / reproduced while the optical disc is rotating, and power and data can be transmitted with high efficiency. Of course, they may be omitted, but in that case, the transmission efficiency will be reduced. Needless to say, a lead wire is drawn from the antennas 20 and 39.

FIG. 5 shows another embodiment of the optical disk of the present invention. Digital data is transmitted by an optical coupling element 19 composed of a light emitting element and a light receiving element instead of the antenna 7. The optical coupling element 19 is installed substantially at the center of the disk to enable data transmission while the disk is rotating.

FIG. 6 is a sectional view of the antenna 23 and the optical disk of the recording / reproducing apparatus when an optical disk having the optical coupling element 19 is used. Reference numerals 21 and 19 are optical coupling elements. The center of the digital data storage means 3 is hollow as shown in the figure, and the optical disk 1 can be mounted on the table 22 of the recording / reproducing apparatus as shown. By exchanging data with light as in the present invention, crosstalk between antennas can be reduced.

As the memory used in the present invention, various semiconductor memories can be used. Further, the digital data storage means 3 may be detachable.

The data processing unit 8 or the control unit 14
By using a microprocessor for such functions, it is possible to perform functions such as encryption of recorded data or protection of data by a password. Further, error correction of data transmitted through the antenna may be performed.

[0016]

According to the present invention, a digital data recording / reproducing means is formed on a part of a read-only optical disk, and a means for recording / reproducing the data is provided. By recording the data necessary for the digital data recording / reproducing means of the optical disk, for example, it is possible to process the data on the disk and record and save the result on the disk.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of an optical disc having data recording means of the present invention.

FIG. 2 is a diagram illustrating an outline of functions of a digital data storage unit shown in FIG.

FIG. 3 is a sectional view of the digital data storage unit 3 shown in FIG.

FIG. 4 is a block diagram of a data processing unit 8;

FIG. 5 is a diagram showing another embodiment of the optical disk having the data recording means of the present invention.

6 is a cross-sectional view of the digital data storage unit 3 and the antenna 23 shown in FIG.

FIG. 7 is a diagram showing an embodiment of the recording / reproducing apparatus for an optical disk of the present invention.

FIG. 8 is a sectional view of an antenna 23 of the optical disk recording / reproducing apparatus of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Optical disk 2 ... Recording track 3 ... Digital data storage means 5, 7, 22, 25 ... Antenna 9 ... Memory 19 ... Optical coupling element

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Junya Monma 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture Inside the Information & Video Media Division, Hitachi, Ltd. (72) Inventor Hiroaki Nakamura Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa 292, Hitachi, Ltd.Information and Visual Media Division

Claims (5)

[Claims] An optically reproducible data recording area;
An input unit for inputting data, a data storage unit for storing the data input by the input unit, and an output unit for outputting the stored data, a disk mounting unit for mounting an optical disk provided in the same disk, An optical pickup for reproducing data in the data recording area; an output unit for non-contactly outputting data to an input unit in the optical disk; and an input unit for non-contact input of data output from an output unit in the optical disk Output means for non-contact output of data to input means in the optical disc and / or input means for non-contact input of data from the output means in the optical disc so as to surround a rotation center axis of the optical disc. An optical disk device provided in a computer. 2. The recording / reproducing apparatus according to claim 1, wherein:
An output unit for non-contact output of data to an input unit in the optical disk and / or an input unit for non-contact input of data from an output unit in the optical disk may include a rotation center of the optical disk mounted on the disk mounting unit. An optical disc device provided around an axis substantially the same as the axis. 3. The optical disc according to claim 1, wherein said output means outputs data to an input means in said optical disc in a non-contact manner, and / or said data is output from said output means in said optical disc in a non-contact manner. The input means for inputting in (1) is an electromagnetic coupling means. 4. The recording / reproducing apparatus according to claim 3, wherein
Further, there is provided an output means for outputting data to the input means in the optical disc in a non-contact manner and / or a means for further strengthening the electromagnetic coupling of the input means for non-contact input of data from the output means in the optical disc. Optical disk device. 5. An optically reproducible data recording area,
Input means for inputting data, data storage means for storing data input by the input means, output means for outputting the stored data, and power input means for inputting power to the data storage means; A disc mounting unit for mounting an optical disc provided in the same disc, an optical pickup for reproducing data in the data recording area, an output means for outputting data to input means in the optical disc in a non-contact manner, An input unit for non-contact input of data output from the output unit, and a unit for supplying power to the power input unit of the optical disk in a non-contact manner, and an output for outputting data to the input unit in the optical disk. Means and / or input means for inputting data from output means in the optical disc surround a rotation axis of the optical disc. Optical disc apparatus being characterized in that provided in earthenware pots.