RU2278425C2 - Device for storing information - Google Patents

Abstract

FIELD: engineering of devices for information storage.

SUBSTANCE: device for information storage contains disks with information carrying layer mounted with possible rotation relatively to common axis, disks rotation drive, reading and/or recording head, positioned on the side of end of one of edge disks and directed towards the latter by its active zone, and also drive for moving aforementioned head in plane, parallel to rotation plane of disks. Information carrying layer at least on one disk, positioned on the side of head, is made with forming of window, transparent for signal, emitted and/or read by head and having shape matching movement trajectory of head, and disks rotation drive is made with possible independent rotation of disks and holding in position, providing for positioning of window in front of active zone of head.

EFFECT: increased efficiency.

8 cl, 4 dwg

Description

The invention relates to the field of information storage devices and can be used as storage devices for electronic computers, music and video systems.

A device for storing information containing a rotatably mounted disk with an information-carrying layer, a disk rotation drive, a recording and / or reading head located on the side of the disk end, and a head movement drive in a plane parallel to the disk rotation plane (USSR Author's Certificate No. 1015429, G 11 B 5/48 dated 12/9/81).

The known device has limited capabilities to increase the amount of memory, since it contains only one disk for storing information. Closest to the problem being solved to the present invention is a device for storing information, containing disks mounted with the possibility of rotation about a common geometric axis, disks with an information-bearing layer, a disk rotation drive, a recording and / or reading head located on the side of the end of one of the extreme disks and facing to it with its active zone, as well as a drive for moving the head in a plane parallel to the plane of rotation of the disks (USSR Author's Certificate No. 200876, G 11 B 5/48 of 06/04/66).

The known device allows you to increase the amount of memory by increasing the number of coaxially arranged disks, but for writing and reading information in the known device, each disk must have its own recording and reading head, which complicates the design of the device for storing information.

The technical result from the use of the invention is to simplify the design of the device for storing information, reduce its dimensions, use as a portable medium a larger capacity.

The specified technical result is achieved in that in a device for storing information containing disks mounted with the possibility of rotation about a common geometric axis, disks with an information-bearing layer, a disk rotation drive, a recording and / or reading head located on the side of the end of one of the extreme disks and facing it with its active zone, as well as a drive for moving the head in a plane parallel to the plane of rotation of the disks, carrying an information layer on at least one disk located on the side us head configured to form a window that is transparent for the signal emitted and / or reading head and the corresponding shape of the trajectory of the head movement, and drives the rotational drive means with the possibility of independent rotation and fixing in position to provide the location of the window along the path of head movement.

Windows that are transparent to the signal emitted and / or read by the head can be made on disks located between the disk farthest from the head and the head.

In addition, windows transparent to the signal emitted or read by the head can be performed on all disks.

The head in the information storage device can be made magnetic, at least one of the disks is made of magnetically transparent material, and the information-carrying layer is made of magnetic material deposited on the end surface of the disk with the formation of a window transparent for the passage of the electromagnetic signal.

The head of the device for storing information can be optical, at least one of the disks is made of optically transparent material, and the information-bearing layer is made reflective and / or light-absorbing and applied to the end surface of the disk with the formation of a window transparent for the passage of an electromagnetic signal.

The head of the device for storing information can be installed with the possibility of reciprocating movement in the radial direction relative to the disk.

The head of the device for storing information can be installed with the possibility of reciprocating motion relative to the disk.

A window transparent to the signal emitted and / or read by the head can be formed by a through axial hole made in the disk.

The invention is illustrated by drawings, where:

- figure 1 presents a diagram of a device for storing information with a head mounted with the possibility of reciprocating movement in the radial direction relative to the disk;

- figure 2 presents a diagram of a device for storing information with a head mounted with the possibility of reciprocating motion relative to the disk;

- figure 3 shows a disk with a window, the shape of which corresponds to the implementation of the device for storing information in figure 1;

- figure 4 shows a disk with a window, the shape of which corresponds to the implementation of the device for storing information in figure 2.

The information storage device comprises disks 1, 2, 3 and 4, 5, 6 mounted rotatably with respect to a common geometric axis, provided with an information-carrying layer 7, 8, 9 and 10, 11, 12. The disks are equipped with a rotation drive (in FIG. 1 and 2 are conventionally presented in the form of gears 13, 14, 15 and 16, 17, 18 and shafts 19, 20, 21 and 22, 23, 24). The recording and / or reading head 25 or 26 is located on the side of the end of one of the extreme disks 3 or 6 and faces it with its active zone 27 and 28. Various principles of recording and reproducing information can be used in the device, for example, magnetic or optical. When using the magnetic principle, a magnetic layer is applied to the discs, and an induction head is used to record and reproduce information. Using the optical principle, the optical head serves to direct the laser beam onto the reflective or light-absorbing surface of the information-bearing layer deposited on the disk, as well as to receive the beam reflected or transmitted through the holes in the light-absorbing surface and direct it to the photodetector (not shown).

The head 25 or 26 may, in the process of operation of the device, depending on its design, perform reciprocating movements, as shown in FIG. 1, or reciprocating movements, as shown in FIG. 2. A head drive (not shown) provides movement of the head 25 and 26 in a plane parallel to the plane of rotation of the disks 1, 2, 3 and 4, 5, 6. The direction of movement of the head 25 and 26 depending on the design is indicated in FIG. 1 and FIG. 2 arrows.

Information is applied to the disk and read from it along a spiral path. The positioning of the head 25 and 26 on the track is carried out by the simultaneous operation of the drive rotation of the disks and the drive of the head (not shown). The information-carrying layer on all disks 1, 2, 3 and 4, 5, 6, or on all disks except the farthest 1 and 4 from the head 25 or 26 of the disk, is made with window 29 (Fig. 3) or 30 (Fig. 4), transparent to the signal emitted or read by the head 25 and 26.

The window can also be presented in the form of a through axial hole made in the disk. The length of the window 29 and 30 should be equal to or slightly greater than the stroke of the head 25 and 26, and the shape of the window 29 and 30 is determined by the trajectory of the head. So, for the head 25, moving reciprocating, the window 29 is made elongated in the radial direction of the disks 1, 2, 3 (see Figure 3), and for the head 26, moving the reciprocating, window 30 in the disks 4, 5, 6 is performed elongated along an arc of a circle with a radius equal to the length of the rocker arm 31, on which the head 26 is fixed (see Figure 4). The rotation drive of the disks 1, 2, 3 is conventionally presented in figure 1 in the form of gears 13, 14, 15 and shafts 19, 20, 21, and for the disks 4, 5, 6 in figure 2 - in the form of gears 16, 17, 18 and shafts 22, 23, 24. The drive of rotation of the disks 1, 2, 3 and 4, 5, 6 is made with the possibility of their independent rotation and fixing in a position that ensures the location of the windows 29 and 30 opposite the active zone 27 and 28 of the head 25 and 26 . To write or read information from a disk, it is activated, i.e. give rotation, and the head is moved along its path. At the same time, all other disks should be fixed in the position when their windows are located opposite the active zone of the head. Writing or reading information from an activated disk is interrupted when the disk window enters the active zone of the head and resume when the window exits the active zone. This arrangement of windows is necessary to ensure writing to any disk and reading information from any disk from the available information storage device.

Claims (8)

1. A device for storing information, containing disks mounted with the possibility of rotation about a common geometric axis, disks with an information-bearing layer, a disk rotation drive, a recording and / or reading head located on the side of the end of one of the extreme disks and facing it with its active zone, and also a drive for moving the head in a plane parallel to the plane of rotation of the disks, characterized in that the information-bearing layer on at least one disk located on the side of the head is formed iem window that is transparent for the signal emitted and / or reading head and the corresponding shape of the trajectory of the head movement, and the rotational drive is arranged to drive their independent rotation and fixing in position to provide the location of the window opposite the active zone of the head. 2. The device according to claim 1, characterized in that the windows transparent to the signal emitted and / or read by the head are made on disks located between the disk most remote from the head and the head. 3. The device according to claim 2, characterized in that the windows transparent to the signal emitted or read by the head are made on all disks. 4. The device according to claims 1 to 3, characterized in that the head is made magnetic, at least one of the disks is made of magnetically transparent material, and the information-bearing layer is made of magnetic material deposited on the end surface of the disk with the formation of a window transparent for passage electromagnetic signal. 5. The device according to claims 1 to 3, characterized in that the head is made of optical, at least one of the disks is made of optically transparent material, and the information-bearing layer is made reflective and / or light-absorbing and applied to the end surface of the disk with the formation of a window, transparent for the passage of an electromagnetic signal. 6. The device according to claims 1-5, characterized in that the head is mounted with the possibility of reciprocating movement in the radial direction relative to the disk. 7. The device according to claims 1-5, characterized in that the head is mounted with the possibility of reciprocating motion relative to the disk. 8. The device according to claims 1 to 3, characterized in that the window transparent to the signal emitted and / or read by the head is formed by a through axial hole made in the disk.

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