JP2000082117A - Electronic data processing adapter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an adapter which can transmit and receive a signal without moving a magnetic head of a disk drive device and can reduce an access time and power consumption on a disk drive device side. SOLUTION: This adapter 12 is equipped with a head insertion port which is formed at the same position as a disk cartridge and is provided with a core 23 inside and a coil 24 wound around the core 23, and a card storage part which has a card interface and can store an electronic card where the external form is similar to that of the disk cartridge, and performs transmission and reception of a signal between the electronic card and an electronic data processor by storing the electronic card in the card storage part and fitting it to a disk drive device 4 of an electronic data processing device 3. In this case, a gap part 22 of the core when the electronic data processing adapter is fitted to the disk drive device 4 is arranged at a position corresponding to a track of a magnetic disk or its neighborhood.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an electronic card (for example, an IC card) used in various information processing systems such as an electronic money system, a medical examination system, and an electronic ticket system. The present invention relates to a disk cartridge type electronic data processing adapter (hereinafter simply referred to as an adapter) which is connected to a processing device and exchanges data with each other.

[0002]

2. Description of the Related Art Conventionally, various proposals have been made as an electronic data processing system of this kind (for example, Japanese Patent Laid-Open No. 5-1)
No. 27832, Japanese Translation of PCT International Publication No. 6-509194, etc.). As an example, a head insertion slot formed at the same position as a disk cartridge and having a magnetic interface provided with a core and a coil wound around the core inside, and a card storage portion capable of storing an IC card are provided. Uses an adapter having the same shape as the disk cartridge. The IC card is stored in the card storage unit, and the adapter is mounted on the disk drive of the electronic data processing device, so that signals are exchanged between the IC card and the electronic data processing device via the adapter. Has been proposed.

With such a configuration, since the IC card can directly access an electronic data processing device such as a general-purpose personal computer via the electronic data processing adapter, there is no need for a data writing / reading device dedicated to the IC card. The feature is that the use of the IC card is simplified.

[0004]

However, in the conventional proposal, the means for positioning the magnetic interface in the adapter has not been sufficiently considered and examined.
For this reason, the positional accuracy between the magnetic interface (magnetic gap) and the magnetic head of the disk drive device fluctuates, and there is a problem such as a communication failure due to a displacement between the two.

An object of the present invention is to solve the above-mentioned problems,
An object of the present invention is to provide an adapter which has a high positioning accuracy of a magnetic interface in an adapter, and therefore has a high correspondence with a magnetic head of a disk drive device, and has high operation reliability.

[0006]

SUMMARY OF THE INVENTION The present invention has a head insertion opening formed at the same position as a disk cartridge and having a core and a coil wound around the core inside, and a card interface. A card storage unit that can store an electronic card such as an IC card, and has an outer shape substantially the same as that of a disk cartridge. The present invention is intended for an electronic data processing adapter that transmits and receives signals between an electronic card and an electronic data processing device by being mounted.

In order to achieve the first object, the first
According to the present invention, when the electronic data processing adapter is mounted on a disk drive, the gap portion of the core is located at or near a position corresponding to the track 0 of the magnetic disk mounted and used on the disk drive. It is characterized by being arranged to be arranged.

A second aspect of the present invention is characterized in that the core is formed of a laminated body of magnetic thin plates such as a silicon steel plate, permalloy, and an amorphous material.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As described above, in the first aspect of the present invention, a gap portion of a core is located at a position facing a track 0 of a magnetic disk mounted and used in the disk drive device or in the vicinity thereof (for example, a track). (In the range of about ± 5 tracks from 0), it is necessary to move the magnetic head of the disk drive device when transmitting and receiving signals between the electronic card and the electronic data processing device via the adapter. Therefore, it is possible to send and receive signals immediately, shorten the access time, and perform stable data transmission and reception by setting the gap position of the core for communication with the magnetic head of the disk drive device to the optimum position, Moreover, it is possible to provide an adapter capable of reducing the power consumption of the disk drive device.

According to the second aspect of the present invention, as described above, the high-frequency characteristics can be improved by forming the core from a laminate of magnetic thin plates.

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of an adapter according to an embodiment of the present invention, FIG. 2 is a bottom view of the adapter, FIG. 3 is a cross-sectional view taken along the line XX of FIG. 1, and FIG. FIG. 5 is a schematic explanatory view of an electronic data processing system using the adapter.

As shown in FIG. 5, the electronic data processing system includes an IC card 1, a disk cartridge type adapter 2 capable of storing the IC card 1, and a general personal computer of a desktop type or a notebook type. And an electronic data processing device 3 such as various workstations.

As shown in FIG. 1, an IC card 1 is stored in an adapter 2 and is mounted on a disk drive device 4 of an electronic data processing device 3 so that the adapter 2 is mounted.
Is a system for exchanging data between the IC card 1 and the electronic data processing device 3 via the.

Next, the configuration of the adapter 2 will be described. The adapter 2 is the same as a general-purpose 3.5-inch floppy disk, and its outer dimensions are about 93 mm (W) x 90 mm
(L) × 3 mm (T). The adapter 2 is composed of a case body 5 (not shown, but composed of a lower name plate made of a metal plate and a frame molded therewith).
And an upper nameplate 6 (both refer to FIG. 3) made of a metal plate attached to the upper surface of the case main body 5, and a predetermined position of the case main body 5 and the upper nameplate 6 (the same as a 3.5-inch floppy disk). The head insertion openings 8, 8 are formed at positions (see FIGS. 1 and 2).

As shown in FIG. 4, on a printed circuit board 7 mounted inside the case body 5, various electronic components 9 such as IC chips and a group of contact terminals 10 are mounted. A magnetic interface assembly 11 is attached to the case body 5 at a position corresponding to the head insertion opening 8, and flat batteries 12 as a driving power supply are exchangeably mounted on both sides of the magnetic interface assembly. 2 in FIG.
Reference numerals 3 and 13 denote battery covers detachably attached to the case main body 5.

A slider 15 is provided so that a part thereof faces a notch 14 for inserting an opening / closing pin formed on a front end face side of the adapter 2.
Are movably arranged in the case body 5, and a microswitch 16 is installed in the vicinity thereof. This slider 15
Is a slider 15 with a small-diameter coil spring 21.
Are elastically urged away from the microswitch 16.

As shown in FIGS. 1 and 3, a card insertion slot 17 is provided on the side surface of the adapter 2 and behind the head insertion slot 8, and a storage space 18 extending in the card insertion direction is provided. It is formed between the main body 5 and the upper nameplate 6. An elliptical hole 19 is provided at a position facing the storage space portion 18 of the upper nameplate 6, and a number of the case body 5 facing the hole 19 extends in the direction of taking out (inserting) the card. A ridge 20 is formed. When taking out the IC card 1 inserted in the storage space 18,
For example, when a finger pad such as a thumb is inserted into the hole 19 and the IC card 1 is pushed out, the IC card 1 is pushed out smoothly without resistance if a large number of ridges 20 extending in the removal direction are provided. be able to.

Next, the magnetic interface assembly 1
1 will be described. 6 is a plan view of the magnetic interface assembly, FIG. 7 is a plan view of a core and a coil used in the magnetic interface assembly, FIG. 8 is a plan view of a flexible printed circuit board used in the magnetic interface assembly, and FIG. FIG. 10 is a sectional view showing the positional relationship of the magnetic interface assembly with respect to the magnetic head home position (track 0 position) of the disk drive.

This magnetic interface assembly 1
1 is a thin core 23 having a gap 22 in the middle,
A coil 24 wound around the core 23, a flexible printed circuit board 25 adhered to the lower surface of the core 23, and a polyester film adhered to the lower surface of the flexible printed circuit board 25 and the upper surface of the core 23, for example. And a rectangular laminated film 26.

The core 23 is made of, for example, a silicon steel plate, permalloy, amorphous material, or the like, and has a square frame shape with a total planar thickness of about 200 μm (two layers of 100 μm in this embodiment). ). By laminating the cores 23 in this manner, there is an effect of improving high frequency characteristics. The coil 24 is made of a coated copper wire having a diameter of 0.08.
mm and the number of turns are set to 180 turns.

The flexible printed board 25 has a planar shape as shown in FIG. 8, and the hatched portion in FIG. 8 is a copper foil pattern portion 27, at least in the vicinity of the gap portion 22 of the core 23. Part 27c facing
The copper foil pattern portion 27 is formed in portions 27a and 27b where both ends 24a (see FIGS. 6 and 7) of the coil 24 are connected. By soldering and fixing both ends 24a of the extra-fine coil 24 to the copper foil pattern portions 27a and 27b (terminal portions), the terminal of the coil 24 can be processed, and the magnetic interface assembly 11 can be assembled into an adapter, inspected, or broken. It is easy to deal with time. As described above, the copper foil pattern portion 2 is formed in a portion facing the vicinity of the gap portion 22.
The provision of 7c allows stable transmission and reception by absorbing high frequency (RF) noise due to a strong magnetic field generated from, for example, a radio or television, and also reduces leakage magnetic flux. Thereby, stable data transmission / reception between the adapter 2 and the disk driving device 4 of the electronic data processing device 3 can be performed.

As shown in FIG. 9, the upper and lower surfaces of the thin core 23 near the gap 22 are sandwiched by a laminate film 26, and the opposite ends 23a and 23a of the core 23 are connected and integrated. In this case, the portion of the core 23 near the gap portion 22 is not curled or turned, or the portion is not damaged. Therefore, handling is simple, automatic assembly is possible, and signal transmission / reception characteristics (electromagnetic conversion characteristics) are stable.

If necessary, the laminate film 2
6, a reinforcing plate made of a hard synthetic resin plate can be attached to one side to reinforce the mechanical strength of the magnetic interface assembly 11.

As shown in FIG. 6, a plurality of boss holes 28 (two in this embodiment) are formed in the magnetic interface assembly 11 at distant positions, and are directed toward the inside of the case body 5 as shown in FIG. By inserting the projecting boss 29 into the boss hole 28, the magnetic interface assembly 11 is positioned on the head insertion opening 8.
By directly attaching the magnetic interface assembly 11 to the case main body 5 as in this embodiment,
The positional accuracy of the magnetic interface assembly 11 is easily ensured. Also, by inserting the boss 29 into the boss hole 28, the magnetic interface assembly 11 can be displaced to some extent in the vertical direction with the boss 29 as a fulcrum (ie, in a state of being positioned in the horizontal direction). Adhesion can be achieved. The head insertion port 8 is closed by the laminate film 26, so that entry of dust and the like from the head insertion port 8 can be prevented.

This magnetic interface assembly 1
The first gap portion 22 is a region indicated by oblique lines in FIG. 10, and in the present embodiment, the vertical dimension L of the gap portion 22 is designed to be 2 mm, and the horizontal dimension W is designed to be 0.8 mm. That gap portion 22, the vertical dimension of the disk drive unit 4 a position corresponding to the track 0T ₀ is the outermost track of the magnetic disk to be used by attaching to and enclosing the virtual gap portion 22 in this embodiment L intermediate point O (L / 2
In 1mm in this embodiment) it is designed the track 0T ₀ with the corresponding position, or to come to the vicinity thereof. In other words, the gap portion 22 is designed so as to include the read / write gap of the magnetic head 30 when the magnetic head 30 of the disk drive device 4 is at the track 0 position.

A general-purpose 3.5-inch magnetic disk has concentrically formed 80 recording tracks from the outermost recording track to the innermost recording track around the rotation center of the recording disk. Width (track width)
Is 0.115 ± 0.008 mm, and the gap (track gap) between recording tracks is 0.0725.
mm, the width from the outer circumference of the outermost recording track to the inner circumference of the innermost recording track is defined as 14.813 mm by the standard.

Therefore, as shown in FIG.
If the vertical dimension L is 2 mm (the intermediate point O of the vertical dimension L is 1 mm), a total of 10 tracks including 5 tracks on the inner peripheral side and 5 tracks on the outer peripheral side from the intermediate point O come into the gap portion 22. That is, even if the recording track is slightly displaced, the recording track always exists in the gap portion 22.

When a normal disk cartridge is mounted on the disk drive 4, the disk drive 4
In the initialization process, the recalibration operation is executed, and the magnetic head 30 moves to a position facing the track 0 which is the outermost track of the magnetic disk. This magnetic head position is defined as a home position. The home position is detected by the track 0 sensor of the disk drive 4, and the track is selected by moving in the inner circumferential direction of the disk based on this position, and data reading or writing is performed.

Accordingly, as in the present invention, the gap portion 22 of the magnetic interface assembly 11 virtually includes the position corresponding to the outermost track (track 0T ₀ ) of the magnetic disk used by being mounted on the disk drive device 4. By setting the position, the magnetic head 30 does not need to be moved in the inner circumferential direction when the adapter 2 is mounted on the disk drive device 4 to transmit and receive signals, and data communication can be performed. Further, by providing the gap portion 22 so as to include the track 0 position serving as a position reference, the magnetic head 3 of the disk drive device 4 is provided.
Since the position accuracy of the gap portion 22 of the magnetic interface assembly 11 is optimized with that of the magnetic interface assembly 11, stable data transmission and reception can be performed.

FIG. 12 shows a case where the magnetic head 30 seeks to the track 0 after the power is turned on (recalibration operation).
6 is a timing chart of FIG. The interface signal (1) is a signal for controlling whether to move the magnetic head 30 to the outer peripheral side or the inner peripheral side when the step pulse signal is given. When this signal is at a high level, the magnetic head 30 moves from the inner circumference to the outer circumference of the disk, and when it is at a low level, it moves in the inner circumference. (2)
The interface signal of (1) moves the magnetic head 30 according to the state of the signal of (1). Magnetic head 30
Moves one track each time one pulse of this step signal line is given. This line is normally high, and the step operation starts with the inversion of the negative pulse from low to high. The interface line of (3) outputs a low level when the magnetic head 30 of the selected device is located at the track 0, and outputs a high level when the magnetic head 30 is located at a position other than the track 0. After the power is turned on, it is necessary to seek to track 0 in order to initialize the drive.

Although not shown, the adapter 2 has an I
Bu having functions such as a C card interface control unit, a work area, a transmission / reception buffer, and a status.
A memory such as a fler-RAM and a ROM for storing programs, a central control unit (CPU), a clock control unit, a power control unit, a coil signal conversion unit, an analog signal processing unit, and the like are provided.

FIG. 11 is a plan view of the IC card 1 and shows the CPU.
And a built-in IC chip 32 composed of a nonvolatile memory. On the surface, there are provided an electrode 33 that is divided into a plurality and electrically connected to the IC chip 32, a magnetic stripe 34, an insertion direction display unit 35, and the like. And it is the same as the conventional one. An electronic card of another configuration such as a so-called IC memory card without a built-in CPU or a non-contact type IC card without electrodes is also applicable.

Next, the operation of the electronic data processing system according to the present invention will be described. As shown in FIG. 3, the IC card 1 is inserted into the storage space 18 of the adapter 2, and the electrodes 33 of the IC card 1 and the contact terminals 10 of the adapter 2 are brought into contact. Since a part of the IC card 1 is exposed from the hole 19 formed in the upper nameplate 6, it is possible to confirm that the IC card 1 is inserted into the adapter 2 by observing the state.

When the adapter 2 completely containing the IC card 1 is inserted into the disk drive 4 of the electronic data processing device 3, the disk drive 4 as shown in FIG.
The slider 15 is automatically moved to the left as viewed in the drawing against the elasticity of the coil spring 21 by a shutter opening / closing pin 36 provided therein.

The micro switch 16 is turned on by the movement of the slider 15, and power is supplied from the battery 12 to the adapter 2 and the IC card 1. At the same time, the magnetic head 30 is inserted from the head insertion opening 8, and the recalibration operation is executed in the initialization processing of the disk drive device 4, and the magnetic head 30 moves to a position corresponding to track 0 of the magnetic disk. In this home position (the position corresponding to the track 0), the coil 2
3 (see FIG. 10), the data processing device 3 can perform data communication with the IC card 1 via the adapter 2 and write or read desired data. .

When writing or reading of data is completed and an eject button (not shown) of the disk drive device 4 is pressed, the magnetic head 30 is retracted from the magnetic interface assembly 11 (head insertion port 8), and the shutter opening / closing pin is opened. 36 also retreats, and accordingly, the slider 15 moves to the original position by the restoring force of the coil spring 21. With this operation, the microswitch 16 is turned off,
Power supply from the battery 12 to the adapter 2 and the IC card 1 is stopped.

The disk drive 4 to the adapter 2
Is discharged, the IC card 1 can be easily removed from the adapter 2 by inserting, for example, a finger pad of a thumb through the hole 19 formed in the upper name plate 6 and pressing the IC card 1 in the discharging direction.

In the above embodiment, the connection between the IC card 1 and the adapter 2 is made by the electrode 33 of the IC card 1 and the contact terminal group 10 of the adapter 2, but the present invention is not limited to this. For example, it is also possible to provide a coil in each of the IC card 1 and the adapter 2 and to electromagnetically couple the two to exchange signals.

In the above embodiment, the electronic card is C
Although an IC card with a built-in PU is used, the present invention is also applicable to a so-called IC memory card with a built-in nonvolatile memory such as a flash memory without a built-in CPU.

The memory may be a fixed type of data storage memory incorporating a flash memory or the like without using a removable electronic card.

[0041]

According to the first aspect of the present invention, as described above, the gap portion of the core is disposed at a position corresponding to the track 0 of the magnetic disk used by being mounted on the disk drive. When sending and receiving signals between the electronic card and the electronic data processing device via the, there is no need to move the magnetic head of the disk drive device, so that signals can be sent and received immediately, and the access time can be shortened. By setting the gap position of the core for communication with the magnetic head of the drive device to the optimum position, it is possible to provide an adapter that can perform stable data transmission and reception and reduce the power consumption of the disk drive device. .

According to the second aspect of the present invention, as described above, the high frequency characteristics can be improved by forming the core from a laminated body of magnetic thin plates.

[Brief description of the drawings]

FIG. 1 is a plan view of an electronic data processing adapter according to an embodiment of the present invention.

FIG. 2 is a bottom view of the adapter.

FIG. 3 is a sectional view taken on line XX of FIG. 1;

FIG. 4 is a plan view of the adapter with an upper nameplate removed.

FIG. 5 is a schematic explanatory diagram of an electronic data processing system using the adapter.

FIG. 6 is a plan view of a magnetic interface assembly used for the adapter.

FIG. 7 is a plan view of a core and a coil used for the magnetic interface assembly.

FIG. 8 is a plan view of a flexible printed circuit board used for the magnetic interface assembly.

FIG. 9 is an enlarged sectional view taken on line YY of FIG. 6;

FIG. 10 is an explanatory diagram showing a positional relationship of a magnetic interface assembly with respect to a magnetic head home position (track 0 position) of the disk drive device.

FIG. 11 is a plan view of the IC card.

FIG. 12 is a timing chart when the magnetic head seeks to track 0 after power-on.

[Explanation of symbols]

1 IC card 2 Adapter 3 electronic data processing device 4 the disk drive apparatus 5 case body 8 head access opening 11 magnetic interface assembly 22 gap portion 23 laminated core 24 coil 25 flexible printed circuit board 26 laminated film 27 copper foil pattern section 30 the magnetic head T ₀ Track 0 L Vertical dimension of gap section W Horizontal dimension of gap section O Midpoint of vertical dimension of gap section

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Kazuo Takasugi 1-1-88 Ushitora, Ibaraki City, Osaka Prefecture Inside Hitachi Maxell Co., Ltd. (72) Inventor Kazuhiko Omichi 1-1-88 Ushitora, Ibaraki City, Osaka Hitachi Inside Maxell Co., Ltd. Inside of UMC Electronics Co., Ltd. (72) Inventor Masaki Sano 2-1260, Owada-cho, Omiya-shi, Saitama UMC Electronics Co., Ltd.

Claims (3)

[Claims] 1. A head insertion opening formed at the same position as a disk cartridge and provided with a core and a coil wound around the core, a card storage unit having a card interface and capable of storing an electronic card. The external shape is almost the same shape as the disk cartridge. An electronic card is stored in the card storage unit and is mounted on a disk drive device of the electronic data processing device, so that the electronic card and the electronic data processing device In an electronic data processing adapter for exchanging signals between the cores, when the electronic data processing adapter is mounted on a disk drive, the gap of the core is formed by a track of a magnetic disk used by mounting on the disk drive. It is configured to be arranged at a position corresponding to Electronic data processing adapter to. 2. The electronic data processing adapter according to claim 1, wherein said core is constituted by a laminated body of magnetic thin plates. 3. The electronic data processing adapter according to claim 1, wherein the core is made of a material selected from a silicon steel plate, permalloy, and an amorphous material.