JPS59144086A - Information processor - Google Patents

Abstract

PURPOSE:To attain the rational use of the memory capacity of an optical disk device and efficient collation by monitoring the memory enable capacity of a memory to erase the record information bit on a disk. CONSTITUTION:The output signal supplied from an original reader 11 is recorded on a disk 1 by a photomagnetic disk device 15, and this reproduction output is supplied to a laser beam printer 14. A control circuit 24 has a counter as well as a monitor function for applicable recording region which subtract the counted value every time the recording region of the disk 1 is used by one page. Then the information recorded on the disk 1 is erased under the control of the circuit 24 and in accordance with the result of comparison between the applicable recording region of the disk 1 and the number of input pages.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an information processing device, particularly an information processing device that reads image information on a document and records or reproduces recorded information in a storage device by irradiating a light beam according to the read signal. The present invention relates to an information processing device equipped with erasing means.

Conventionally, the above-mentioned recording device uses a magneto-optical device, which records by irradiating a disc-shaped recording medium made of a magnetic film with a light beam and changing the direction of the magnetic field, and reproduces the recorded information using the magneto-optical effect. Disk devices are known.

FIG. 1 is a schematic configuration diagram thereof, and FIG. 2 is a top view of a disk-shaped recording medium. / is a disc-shaped recording medium (hereinafter referred to as a disc), for example, a glass disc-shaped G (1
, 'I'l), Fe, etc., is deposited by sputtering. To record image information, a laser beam emitted from a laser light source λ corresponding to an information read signal is collimated by a collimator lens 3Vc, passed through a beam splitter q, and then collimated onto the disk surface using a condenser lens S. diameter approximately/μm
This is done by focusing the beam spot. In other words, the magnetic film on the disk is magnetized in advance with its orientation aligned in the vertical direction, but the part irradiated with the beam spot is heated up by the energy of the laser beam, and when it reaches a temperature above the Curi point of the magnetic film, it becomes magnetized. The direction becomes chaotic. When the beam spot moves to a different position as the disk rotates, the temperature of that area with disordered magnetization decreases, and the surrounding magnetic flux remagnetizes it in the opposite direction to the surrounding magnetization direction. In this way, information is recorded in the magnetic film as pits with reversed magnetization.

On the other hand, reproduction is performed as follows. The laser light source is a laser light that is weaker in intensity than the laser light used during recording! After being linearly polarized by the polarizer 7, it is irradiated onto a pit array formed on the magnetic film. The irradiated light is reflected by the magnetic film, and the reflected light is optically rotated according to the magnetization direction of the bit. The direction of this reflected light is changed by a beam splitter q in the reproducing section, the direction of magnetization is detected using an analyzer g, and then guided to a light receiving element 9. Information is then reproduced from the output signal of the light receiving element 9 by a signal processing circuit 10.

The spacing (track pitch) between signal rows on the disk of such a magneto-optical disk device is 2 μm or less, and the recording density is higher than that of conventional magnetic disk devices.
Large capacity recording is possible.

Further, by configuring the recording section and the reproducing section so that the beam spot can be moved in the radial direction of the disk, it is possible to arbitrarily search (random access) the recording area on the disk. By taking advantage of the above characteristics of the magneto-optical disk device, it can be used as a collating device (hereinafter referred to as an electronic sorter device) for an electronic copying device such as a facsimile machine. Now, if the recording area is from the outer diameter of the disk, 200 mm, to the inner diameter, 00111111, the storage capacity is approximately 20 bits! :
It can store 25 sheets of A4 manuscript on one side without data compression etc.

Incidentally, the storage capacity of magneto-optical disk devices also has a certain limit, and previously recorded information may have to be erased as necessary. In other words, the remaining recording area after subtracting the used recording area from the total recording area in the magneto-optical disk device becomes the usable recording area, but this may be inconvenient if this is less than the recording area required by the operator. It is.

The present invention has been proposed in view of the above points, and it is an object of the present invention to provide an information processing device that is capable of monitoring the usable capacity of a memory means and taking measures such as deletion by comparing it with the information capacity scheduled to be input. purpose.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 3 shows an example of an optical information processing device equipped with an electronic sorter device as a storage device according to the present invention. /
/ performs optical scanning while illuminating the original on document table /2 with a fluorescent light, and further scans the original on solid-state image sensor /3 (e.g. CC
D) is a document reading device that converts image information into electrical signals and reads them.

/g is a printer, for example, a laser beam printer, which scans and forms an image on a photoreceptor with a laser beam modulated based on the image information signal to obtain a copied image by a known electrophotographic process. /S is the aforementioned electronic sorter device (magneto-optical disk device), which can record an input signal corresponding to the image information signal on the disk or reproduce it.

The above three devices are connected to each other by coaxial cables or optical fibers, etc., and receive and pass predetermined signals.

Next, an outline of the operation of these devices, particularly the electronic sorter device/S, will be explained with reference to the flowchart shown in FIG. At this time, the total storage capacity of the electronic sorter device (magneto-optical data disk device) is /1. is the autumnal equinox, and data is recorded sequentially from the outer recording area of the disc. In addition, the control circuit that controls the electronic sorter device has a counter with an initial value of /, 2, and the counter value is decremented by 1 each time the recording area of the disk is used for /page. Equipped with a possible recording area monitoring function.

The operator sets initial conditions based on a predetermined required number of copies and a predetermined number of pages of the original to be copied. For example, let the predetermined number of pages be P (Ag size conversion).

Now, assuming that the counter value is Q, the control circuit compares P and Q, and if P>Q, it is not possible to record two pieces of information in the remaining recording area, so the recording bits of the entire recording area of the disk After erasing by the erasing means described later, (at this time, the counter value Q=/2k>records in the specified page order. If P≦Q, the remaining usable recording area is similarly designated without erasing. Thereafter, the printer outputs the copied images in a predetermined order based on the recorded information on the reproduced disk, and the series of sequences is completed.

Next, recorded information erasing means according to the present invention will be explained. Figure S (al is a partial sectional view thereof, Figure S (bl
2 is a top view of the erasing means and a configuration diagram for explaining its operation. FIG. /9 is an erasing head made of a bar-shaped magnet, and its magnetic pole is located at a position where the recorded bits of the disk can be initially set, that is, the side facing the magnetic film surface of the disk is the S pole, and the opposite side is the N pole. It is in. Here, Gd, Tb, Fe
The bit width in the disk radial direction is 7.
Experiments have shown that in order to reverse the magnetic field of a recording bit of μm, the strength of the magnetic field on the magnetic film must be at least /KOe (Oersted). Alternatively, rare earth cobalt-based magnets may be used. The length 11 of the magnet portion of the erase head/9 is still longer than the total recording area width l in the disk radial direction. The erasing head 9 is retracted above the disk during recording and playback, but when the above-mentioned erasing conditions are met, the erasing head 9 is rotated around the rotation axis 2 by the drive of the motor 2θ, and the erasing head 9 is retracted above the disk.
It stops when the radial direction of the erasing head almost coincides with the longitudinal direction of the erasing head /q. Note that the motor angle θ is the control circuit, l
! It is driven by a motor drive circuit 23 based on a control signal of g.

Next, the operation of the erasing means according to the present invention will be explained in detail with reference to the signal timing chart shown in FIG. S (c).

First, when the erase condition is satisfied in the initial condition setting by the operator, the control circuit 2q outputs a recorded information erase signal (E r -
A). This signal causes the motor drive circuit 23
inputs a drive signal to the reversible motor 2θ, and rotates the motor 20 in the direction B shown in the figure. The erasing head /q fixed to the motor rotation axis λ/ also rotates in the direction B, but at a position where the longitudinal direction of the erasing head /q almost coincides with the radial direction of the disk /, the microswitch Ml turns the erasing head off. /9 turns ON" and sends a signal to that effect to the control circuit λq. As a result, the control circuit !ke stops the motor 200 rotations via the motor drive circuit 23, and changes the position of the erasing head /9. At this time, the disk / is rotating or starts rotating after the erasing head /9 has stopped.

After the erasing head /q stops, the disk / rotates at least / so that the magnetic field directions of the magnetic films on the disk / are all aligned in the incoming direction. After that, the control circuit 2q generates a signal (Er-B) that causes the reversible motor 20 to reversely rotate, and the reversible motor 20 is rotated via the motor drive circuit 23.
Since the erase head/q is rotated in the opposite direction to the disk/
Evacuate from above. The erasing head /9 rotates and contacts the microswitch M2, turning it ON. When a signal to that effect is sent to the control circuit 24t, the control circuit 2q turns on the motor λ00.
Stop rotation. The above control makes it possible to erase recorded information on the disk according to the size relationship between the usable recording area of the disk and the number of input pages. Furthermore, it operates in conjunction with the erasing head/9 as an auxiliary to the erasing head/9.
Erasing becomes even more effective and reliable if an auxiliary magnetic pole is provided on the opposite side of the erasing head 9 through the disk during erasing. Although the magnet is explained using a permanent magnet, it is of course possible to use an electromagnet.

g- In FIG. S, the erasing head 9 is moved in a plane parallel to the disk plane, but as shown in FIG.
energizes to generate a magnetic field and erase the signal Er'-
Various erasing means can be used, such as stopping the energization through B.

In the above explanation, an example was given in which the counter value Q of the usable recording area and the number of input pages are compared by a control circuit that controls the entire series of devices, but it is also possible to provide a counter and a comparator within the electronic sorter device. This does not detract from the gist of the present invention.

In the above example, the usable information capacity is compared with the planned information capacity and the information stored in the memory means is automatically erased. However, the present invention is not limited to this, and the present invention is not limited to this. It is also possible to display the possible information capacity and erase it according to the user's instructions.

As explained above, according to the present invention, the recorded information pits on the disk can be erased based on the comparison result between the usable recording area of the magneto-optical disk device and the recording area scheduled to be used. It becomes possible to use capacity rationally, and it is possible not only to increase the number of pages to be collated but also to shorten the collation work. Furthermore, since the recording medium is used over the entire recording area, there is also the advantage that the problem of shortening the life of the medium due to local fatigue does not occur.

[Brief explanation of drawings]

Figure 1 is a block diagram of a conventionally known magneto-optical disk device;
The figure is a top view of a disk, FIG. 3 is a perspective view of an optical information processing device equipped with an electronic sorter device as a storage device according to the present invention, and FIG. 9 shows the operation of the optical information processing device of FIG. 3. FIG. S (a) is a flowchart diagram for which explanation is unnecessary, and FIG.
1 is a top view and a block diagram for explaining its operation; FIG. 5 is a signal timing chart diagram for explaining the operation of the erasing means; FIG. 6 is a portion showing another embodiment of the present invention. They are a top view and a configuration diagram.／...Disk, !...Laser light source, 3...Collimator lens, q...Beam splitter, S...Condensing lens, B...Recording information bit , 7...Polarizer, g...Analyzer, W...Light receiving element, IO...Signal processing circuit, //...Document reading device, /Da...Printer 1 /S...・Electronic sorter device (magneto-optical disk device), /
9. /9'... Erasing head (magnet), 20... Motor, 2/... Rotating shaft, 22... Electromagnet 1, . 23...Motor drive circuit, Kohiro...Control circuit, Ml, M2...Micro switch. Figure 4 Figure 5 (a) Figure 5 (C)

Claims (1)

[Claims] An information processing apparatus comprising means for inputting information, memory means for storing the information, and means for reading and outputting the stored information, characterized by comprising means for monitoring the storage capacity of the memory means. Information processing equipment.