SU1224784A1 - Method of cyclic recording of information on gellike medium - Google Patents

Abstract

The invention makes it possible to increase the erasure rate in the method of cyclic recording of information on a gel-like carrier. On a gel carrier, an information relief is created by forming an information locally rasterized electrostatic field. A pulsed electrostatic field localized on raster elements adjacent to the erasable is formed on the carrier. A device for implementing the method includes a gel-like carrier consisting of an electrically conducting substrate I with a gel-like deformable layer 2. Electrodes 3 and 4 are located above the gap 2 with a gap, which can be filled with annular or ribbon electrodes. Layer 2 is made at least pp between the electrodes 3 and 4. The block 5 controls the keys 6 and 7, with which the electrode 3 is connected to common point 8. The topography of each recording element has opposite values and 9 is shifted to position 10, i.e. in the places where the depressions are formed, bulges form. 2 Il. SO L7 H X / / / y N5 IvD 00 4:

Description

The invention relates to the recording of information on the deformed1) 1x layers by means of electrography and can be used in devices below.

The aim of the invention is to increase the speed of erasure.

Figure 1 shows a device for implementing the proposed method in figure 2 - timing diagram of the response of the deformable layer.

An apparatus for implementing the method includes a gel-like carrier consisting of an electrically conductive substrate on which a gel-like deformable layer is placed. With a gap above the deformable layer 2, there are electrodes 3 and 4, which can be made circular or in the form of tape electrodes. The deformable layer is made not less than the distance between electrodes 3 and 4. The control unit 5 controls keys 6 and 7, using keys 6 and 7, electrode 3 is connected to common point 8.

A method of looping information on a gel carrier is carried out as follows.

On a gel carrier, an information relief is created by forming a locally rasterized electrostatic field on the carrier along with an information field by acting on the carrier with an electrostatic raster. A localized electrostatic field is used to improve the recording sensitivity, and in addition, it is necessary to obtain a sufficient recording density. The ponderomotive forces of the electrostatic field cause the formation of a geometric relief on the free surface of the deformable layer 2 of a gel-like carrier.

Each information entry element is formed using a direct electrostatic raster. After recording the information element, the position of the electrostatic raster is changed by moving it parallel to the surface of the deformable layer 2 of the gel carrier by an amount equal to half of its spatial period. Along with this, the deletion of each recording element is performed using an offset electrostatic raster applied around the direct growth element.

ra record. At the same time, the relief of each recording element, formed under the influence of direct and offset rasters, has opposite values and is shifted from position 9 to position 10, i.e. in the places where the depressions are formed, bulges form. As a result, the erasure of the relief formed by a straight raster occurs both under the action of the elastic forces of the deformable layer 2 and under the action of the mechanical forces of the relief formed by the displaced raster. In this case, the mechanical stresses arising in the material of the layer have opposite values, which relieves the material from mechanical stresses and thereby eliminates the accumulation of residual deformations over the entire surface of the layer 2.

In addition, it allows to eliminate residual deformations selectively, only in the places where information is recorded,

To eliminate the possibility of residual deformations, it is necessary that the thickness of the deformable layer 2 be at least half the spatial period of the raster of the electrostatic field. If the deformable layer 2 is made with a thickness of less than half the spatial period, the material is not completely unloaded from the deformable mechanical stress layer 2, which leads to a slow accumulation of residual deformations, since in this case the effect of the substrate is affected (the relief is not under the center, but under edges of the control electrode).

The response time of the deformable layer 2 consists of the time of the growth pattern of the relief and the erase time, and the duration (the response time of the layer 2 exceeds the duration of the applied control electrical signals, which determines the operational memory.

At the same time, the rise time of the relief depends on the amplitude of the control electrical signals, the topology of the electric field and the thickness of the deformable layer, and the erasure time

the relief depends on the physicomechanical properties of the material of the deformable layer and is the constant constant value of each specific

3

relief. graphic carrier. When erasing the relief of each information element of the record by means of the relief formed by CMenjeHHoro electrostatic raster, the erasure time of the relief depends on the moment of application of the displaced raster, while the response 11 of the deformable layer 2 will be close to the response 12; the response of the deformable layer 3, provides control of the RAM.

Z2A784

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A method of cyclic recording information on a gel-like medium, including creating an information relief on it by forming an information locally-rasterized electrostatic field, characterized in that, in order to increase the erasure rate, after removing the information electrostatic field, a pulsed electrostatic field localized on the carrier is formed raster elements adjacent to erasable.

Claims (1)

Claim A method for cyclically recording information on a gel-like medium, including ₅ creating an informational relief on it by forming an informational locally-rasterized electrostatic field, characterized in that, in order to increase the erasing rate 10, after removing the information electrostatic field, a pulsed electrostatic field is formed on the medium,, localized on raster elements adjacent to erasable elements. FIG. 2