JP2910097B2 - Data processing device having optical disk storage device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data processing device having an optical disk storage device, and more particularly to a data processing device having an optical disk storage device used as an additional memory of a personal computer.

2. Description of the Related Art Generally, a personal computer is provided with a function for freely setting an additional memory, an interface, and the like according to a user's request. In particular, the personal computer has a configuration in which these can be used by being mounted inside a computer body in the form of a mounting card. ing. Conventionally, a ROM (read only memory) is often used as a storage element in a card for an additional memory.

On the other hand, there has been conventionally known a method of installing a CD (compact disk) as an optical disk as a storage device outside a computer main body instead of a mounting card. Since the storage capacity of the CD is larger than the storage capacity of the ROM, the CD is used not as music data but as a digital data storage device for information processing.

Problems to be Solved by the Invention The conventional mounting card in which a ROM is mounted as a storage element has a problem that the ROM has a relatively small storage capacity and is unsuitable for performing a large amount of information processing.

On the other hand, in the conventional example in which the CD device is installed outside the computer main body, since the CD is installed outside, the shape of the whole system becomes large and there is a problem that a large space is required.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a data processing apparatus having an optical disk storage device capable of performing a large amount of information processing and reducing the size of the entire system.

Means for Solving the Problems In order to solve the above problems, according to the present invention, a circuit board provided with a mechanical control circuit, a data demodulation circuit, and a data output unit is provided integrally with the circuit board. A pickup and a pickup moving mechanism are used to perform reproduction processing on an optical disk mounted together with the optical disk. The optical disk is held between the table on which the optical disk is mounted and the table by the force of a magnet. In this way, a clamper that clamps to the table and a dustproof state and a dustproof released state can be adopted. In the dustproof state, the pickup, the pickup moving mechanism, and the table are dustproofed and the dustproof state is prevented. A dust-proof structure that enables the optical disk to be replaced in a released state. An optical disk storage device having a main body of an optical disk storage device and a data processing device having an optical disk storage device for processing data transmitted from the optical disk storage device, wherein the optical disk storage device and another optical disk It is characterized in that it is configured so that it can be directly connected to a storage device by wiring.

The optical disk generally has a larger storage capacity than the ROM, and therefore can process a larger amount of data than a conventional mounting card provided with the ROM. In addition, since the optical disk is provided inside the electronic device main body, the shape of the entire system can be made smaller than when the optical disk is installed outside the electronic device main body.

In addition, since the optical disk storage device and another optical disk storage device are configured to be directly connectable by wiring,
Further, a large amount of data can be processed.

Embodiment FIG. 1 is a schematic perspective view of an optical disk storage device according to an embodiment of the present invention. In the figure, reference numeral 1 denotes a circuit board (hereinafter, referred to as a card body), and an optical disk (for example,
CD) apparatus main body 2, IC package 3 _1, such as a processor or control circuit, 3 _2, etc. are mounted. As shown in FIG. 2, a card main body 1 (substrate) is provided with a card mounting guide 5 provided on a personal computer main body 4 (electronic device).
Is inserted into.

FIG. 3 is a detailed configuration diagram of the card shown in FIG. 1, and FIG. 4 is a detailed configuration diagram showing the inside of the CD device main body 2 with the cover removed in FIG.

The main body 6 of the CD device main body 2 is
The two are integrated with each other by fixing them with the screws described above. The pickup 10 on the carriage 9 that moves between the worm (feed screw) 7 provided on the chassis 6 and the support shaft 8, for example, 3 Inches to 5
It is configured to read digital data recorded on a CD 11 having an inch diameter.

The CD 11 is rotated by a direct drive motor 12, and the worm 7 is rotated by a feed motor 13. In this case, the worm 7 is composed of, for example, a double thread, and therefore, the feed amount of the carriage 9 per rotation is larger than that of the single thread. Therefore, when the CD 11 is accessed or the like, the moving speed of the carriage 9 can be increased and the access time can be reduced as compared with the case where a single thread is used for the worm 7.

FIG. 5 is a plan view near the direct drive motor, and FIG. 6 is a detailed plan view near the direct drive motor. The direct drive motor 12 is formed integrally with a motor board 30 as shown in FIG. 5A, and the motor board 30 is fixed to the main chassis 6 (FIG. 1) with screws or the like.

The motor board 30 has a detection switch 31 for detecting the innermost position of the pickup 10 on the carriage 9 (FIG. 1) with respect to the CD 11 (FIG. 1), and a signal for outputting the signal from the detection switch 31 to the outside. A printed wiring pattern 32 is provided.

When the pickup 10 faces the innermost peripheral position of the CD 11, the convex portion 9'a provided on the pickup substrate 9 'pushes the actuator 31a of the detection switch 31 to detect the innermost peripheral position. In this case, as shown in FIG. 3B, the detection switch 33 is provided outside the motor board 34 and the lead wire 35 is provided in comparison with the method of providing the lead wire 35 for taking out the signal from the detection switch 33 to the outside. Space can be saved as much as it does not need to be routed, and mounting work for the lead wire 35 is not required.

A cover 14 is formed of, for example, a transparent epoxy resin, and is fitted and fixed on the chassis 6 so as to cover the entire CD device main body 2. Therefore, the cover 14 is configured to be detachable from the chassis 6. Reference numeral 15 denotes a clamper, which is formed of, for example, a magnetic material, and is inserted at predetermined intervals into holes 14a provided in the cover 14 as shown in FIG. ing.

The clamper 15 is provided above the direct drive motor 12, is fixed here by a magnet 17 provided on a table 16 on which the CD 11 is mounted, and is integrated with the table 16 together with the table 16 so as to sandwich the CD 11. It is configured to be rotatable.

The cover 14 can prevent dust from adhering to the recording surface of the CD 11 and the pickup 10, and does not adversely affect signal reproduction. Also, dust adheres to mechanisms such as the worm 7, the shaft 8, and the carriage 9. And the movement of the carriage 9 is not hindered. Further, the CD 11 can be fixed to the table 16 by the clamper 15, and the CD 11 can be prevented from coming off the table 11 due to centrifugal force.

In this case, since the clamper 15 is provided on the cover 14, the CD 11 can be fixed to the table 16 simply by attaching the cover 14 to the chassis 6, and another clamper for attaching the cover 14 to the chassis 6 is fixed to the CD 11. There is no need for such troublesome operations.

The card body 1 comprises a CD circuit board 18 and a system control circuit board 19, both of which are mechanically connected by a support member 20 to form one card. The CD device main body 2, the mechanical controller circuit and the IC package 3 ₁ Other such data demodulation processor is mounted on a CD circuit board 18, the IC package 3 ₂ Other systems such as the system control circuit, an error correction processor Control circuit board 19
Mounted on top.

Since the two circuit boards 18, 19 are electrically connected by the jumper wire 21, the two circuit boards 18, 19 can be separated by removing the jumper wire 21 and the supporting member 20, and each can be separated. it can. Accordingly, CD apparatus main body 2 and the IC package 3 ₁
A CD circuit board 18 made of other electrical circuits, the system control circuit board 19 made of the IC package 3 ₂ other electrical circuits
Can be tested separately, for example, each can be evaluated separately as compared to the case where they are connected as a single circuit board by connecting them with a printed wiring pattern without being connected by jumpers, etc. It is easy to find places.

As described above, according to the present invention, as the storage device in the card body 1,
Since the CD device main body 2 is installed, a larger amount of information can be processed as compared with a conventional mounting card provided with a ROM. Further, since the CD device is mounted on the card body 1, the shape of the whole system can be made smaller than in the conventional method in which the CD is installed outside the computer body, and the mounting space can be reduced.

Reference numeral 22 denotes an extension connector socket, which is provided on the system control circuit board 19 and has the same function as the jumper wire 21 connected to the CD circuit board 18. For example, as shown in Figure 8, equipped with a mounting card 1 of the configuration shown in FIG. 1 to the computer main body 4, mounted card 1 into the CD package 23 _1, 23 ₂
The CD circuit board 18 different CD circuit board 24 _1, 24 ₂ and respectively attached to connecting them.

At the time of connection, connecting each jumper of the system control circuit expansion connector socket 22 and the CD circuit board 24 _first substrate 19, 24 ₂ with a suitable wire. Since the present invention has a structure in which one mounting card can be separated into a CD circuit board and a system control circuit board, for example, three CD devices (optical disk storage device main bodies) on which different information is recorded as shown in FIG. It can be used, can process a lot of information in one computer body 4, and can reduce the cost.

Reference numeral 25 denotes an audio circuit module, which is substantially constituted by a DA converter. Reference numeral 26 denotes an audio output jack, which are provided on the system control circuit board 19. This is used for a CD mounted on the CD device main body 2 in which music information is recorded, not digital data for information processing.

FIG. 9 shows a block diagram of a mounting card according to the present invention. In the figure, a signal reproduced from a CD 11 by a pickup 10 is amplified by an RF amplifier 40, a digital information signal is used by a processor 41 as a data buffer for demodulation and primary error correction, and data of a predetermined number of bytes is stored. When stored, it is read from here and supplied to the processor 43, where secondary error correction and the like are performed.

The RAM 44 is used as a buffer for secondary error correction, and stores data after the error correction. The data stored in the RAM 44 is extracted to the outside via the edge connector, and is transferred to the host computer 50 of the computer main body 4, where predetermined processing is performed. In this case, the processor
Signal processing control by the CPU 41 is performed by a mechanical control circuit 45 composed of a CPU, and signal processing control by the processor 43 is performed by a system control circuit 4 composed of a CPU.
Performed at 6.

On the other hand, the tracking error signal and the focus error signal amplified by the RF amplifier 40 are used as respective control signals by the servo processor 47, and are used as drive signals by the driver 48 so that the pickup 10 traces a regular track. On the other hand, control is performed so that normal focus is achieved. The drive signal from the driver 48 controls the direct drive motor 12 to rotate at a constant linear velocity.

Further, when the CD is music data, the data from the processor 41 is supplied to the DA converter 49 (the audio circuit shown in FIG. 1).
The signal is DA-converted at 25) and output from the output terminals 50a and 50b (audio output jack 26 shown in FIG. 1) as an R channel signal and an L channel signal.

Effect of the Invention As described above, according to the present invention, the optical disc is RO
Generally, the storage capacity is larger than that of M, so that a large amount of data can be processed as compared with a conventional mounting card provided with a ROM.

Further, since the optical disk is provided inside the electronic device main body, the shape of the entire system can be made smaller than when the optical disk is installed outside the electronic device body.

In addition, since the optical disk storage device and the other optical disk storage device are configured to be directly connectable to each other by wiring,
Further, a large amount of data can be processed.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of an embodiment of the present invention, FIG. 2 is a view showing a state in which a card of the present invention is mounted on a computer main body,
FIG. 3 is a detailed configuration diagram of the card shown in FIG. 1, FIG. 4 is a configuration diagram showing the inside of the CD device in FIG. 3 with a cover removed, and FIG. 5 is a main portion near a direct driver motor. , FIG. 6 is a detailed plan view in the vicinity of the direct driver motor, FIG. 7 is a view showing a state in which a CD is fixed to a table by a clamper according to the present invention, and FIG. 8 is a state in which a plurality of CDs are driven. FIG. 9 is a block diagram for explaining the operation of the card of the present invention. 1 Card body, 2 CD device, 3 ₁ , 3 ₂ IC package, 4 Personal computer body, 5 Card mounting card, 6 Main chassis, 9 Carriage, 10 Pickup, 11… CD, 12… Direct driver motor, 13… Feed motor, 14… Cover, 18
…… CD circuit board, 19 …… System control circuit board, 21 ……
Jumper wire, 41, 43 ... Processor, 45 ... Mechanical control circuit, 46 ... System control circuit, 50 ...
Host computer.

Continued on the front page (72) Inventor Takehiro Ishikawa 960 Itado, Isehara City, Kanagawa Prefecture Toda Corp. B (72) Inventor Sachio Ide 1103 Tsurumaki, Hadano City, Kanagawa Prefecture Corp. Fukagawa 101 (72) Inventor Atsushi Kirii Kitamurayama-gun, Yamagata Prefecture Oishidacho Oaza Oishida Ko 630-3 (58) Field surveyed (Int. Cl. ⁶ , DB name) G11B 25/04 101 G11B 33/12

Claims (1)

(57) [Claims] 1. A mechanical control circuit, a data demodulation circuit,
And a circuit board provided with a data output unit; and a playback apparatus using a pickup and a pickup moving mechanism for performing playback processing on an optical disc integrally provided and mounted on the circuit board. And a clamper that clamps the optical disk by clamping the optical disk between the table by the force of a magnet, and a dustproof state and a dustproof released state. An optical disk storage device having: a dust-proof structure for dust-protecting the pickup, the pickup moving mechanism, and the table in the dust-proof state, and enabling the optical disk to be replaced in the dust-proof released state. Device is built in and sent from the optical disk storage device A data processing device having an optical disk storage device for processing incoming data, wherein the optical disk storage device and another optical disk storage device are configured so as to be directly connectable to each other. Processing equipment.