SU762035A1 - Logical memory - Google Patents

Description

The invention relates to the field of automation and computing and can 'be used in the construction of discrete systems for receiving and transmitting information. five

A logical memory device is known that contains a “branched core made of magnetic material with a BCP and consisting of parallel magnetic cores, each of which contains several sequentially connected sections forming information memory cells and a connecting core, windings input (bit writing) , output-15, displacement, address writing and setting, with the input windings located on one of the branches of the magnetic circuit and passing through η information cells, and the bias winding - on 20 other "branch and passes through n, informational cells, while the directions of the output winding on the above branches of the magnetic circuit are opposite to £ 1]. 25

In such a device, the input signals representing the code bits must have significant power,

sufficient to saturate the local

sections of the magnetic circuit around infor-30

2

matsionnyh cells. At the same time, the power of the source of clock current pulses should also be large, capable of switching the flow along the undecomposed contour of the core containing the sections saturated with input signals, and the load on the source will depend on whether there is a distortion in the code combination or not. The change in the value of n, in the device is associated with costs and time-consuming rewinding of the windings. In addition, in this scheme it is impossible to repeatedly read the result of the code distortion control; To control the codes that arrive simultaneously in a channels, this device requires 2a branches of the magnetic circuit.

The closest technical solution to the proposed is a logical storage device containing a branched balanced-type magnetic core consisting of sequentially connected branch and unbranched sections of the magnetic circuit, a recording winding with two sections located on jumpers-branched sections of the magnetic circuit forming the source

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magnetic flux, and included in the diagonal of the diode bridge, in one of the arms of which are connected in parallel the first current limiter, for example a potentiometer, and the first controlled key element, input and output windings, located by the figure eight on the jumpers of branched sections of the magnetic circuit, forming information memory cells . Such a device can be used as a storage element with non-destructive reading, as well as for implementing the threshold logic functions in modes with destructive and non-destructive reading [2].

However, it does not allow detecting errors in n-bit code with a constant weight t.

The purpose of the invention is to expand the scope of the device by implementing the function of monitoring the distortion of code combinations with a constant weight characteristic.

This goal is achieved by the fact that it contains a second current limiter and a second controlled key element connected in series with the input winding of one of the information memory cells and included in the diagonal of the bridge, and the output winding of the specified information memory cell is opposite in relation to connected in series according to output windings of other information cells of memory.

The drawing shows a schematic diagram of the proposed logical storage device.

The device contains a branched magnetic core 1 of a balanced type, a recording winding with sections 2 and 3, input 4 and 5 and output 6 and 7 windings, a diode bridge with diodes 8-11, -potentiometers 12 and 13, controlled key elements 14 and 15 respectively control pins 16 and 17. · Serdechk-1 is made of magnetic material with BCP and consists of sequentially connected branched and unbranched sections, the cross sections of the latter being at least twice as large as the cross sections of the bridges of the branched sections. Jumpers 18 and 19 of the branched portion 20 form a source of a fixed increment of the magnetic flux, and the remaining branched portions of the core 1 form the information cells 21-25 of memory. Section 2 and * 3 windings of the record are located respectively on the jumpers 18 and 19 of the branched section 20 and are included in the diagonal of the diode bridge with diodes 8 ~ 11. The diode bridge arm with diode 8 has, connected in parallel, potentiometer 12 and a controlled key element 14. Input 4 and output 6 windings "cover" eight "jumpers of the information cell of memory 21, and input 5 and output 7 windings also cover" eight "jumpers of other information There are 22–25 memory cells, the number of which is determined by the width η of the code combination being tested. The input winding 4 is connected in series with the potentiometer 13 and the controlled key element 15 and is included with them in the diagonal of the diode bridge in such a way that its free output is connected to a point of the electrical circuit that is common to the diodes 10 and 11, and the free output of the controlled key element 15 connected to the point of the electrical circuit, which is common to the diodes 8 and 9.

The output winding 6 of the information cell 21 of the memory is turned on opposite to the connected in series according to the output windings of the 7 remaining information cells of the memory 22-25. Sections 2 and 3 of the recording windings are connected to a source of 26 current bipolar pulses in such a way that when they receive a negative pulse from the last one, they turn on according to, and when they receive a positive pulse, they are counter-current.

In this case, the minimum amplitude of pulses of any polarity should be sufficient for the magnetization reversal of core 1 along an unramified contour;

The principle of operation of the proposed device is as follows.

At the time of the next negative impulse coming from the source 26, applying the control signal “Installation” to the pins 16 opens the key element 14 (the key element 15 is closed). ·

Thus, a negative impulse without restriction is passed through in sections 2 and 3 of the recording winding and the entire core 1 is magnetized to saturation in a clockwise direction (the core 1 is reset to the initial state).

At the moment of receipt of the next (positive) pulse, all η bits of the tested code combination are fed from the source 26 to the windings of 5 information cells 22-25 (the "1" code is represented by the presence of a pulse, and "0" is its absence) and the control signal "Record the weight of the code" on the pins 17 of the key element 15 (this control signal can be used, in addition, to control the transfer of the code being checked to the proposed device).

Under the action of a positive impulse in sections 2 and 3 of the recording winding, the jumper 18 of the branched portion 20 retains the direction of its magnetization, and the jumper 19 changes it to the opposite. Switchable with this magnetic flux distribution 762035

is divided between the jumpers of information cells 21-25 as follows.

In those information cells 22-25, on which the signals "1" of the code being tested acted, the switched flow is closed mainly by one (for example, left) jumper, and in the remaining information cells (on which the signals "0" of the code being tested acted) the switched flow is distributed The distribution of the switching flow in the jumpers of the information cell 21 depends on the amplitude of the positive impulse coming through the public key 15 into its input winding 4, which, in turn, depends on resistance of potentiometer 13. The next (negative) pulse from source 26 saturates the entire magnetic core (translates it to its initial state). However, the resistance of potentiometer 12 is adjusted in such a way (controlled key elements 14 and 15 are closed) that there is a switch along the entire length of the magnetic chains of only a certain size (about a quarter of the maximum value) of the magnetic flux. When the next (positive) pulse arrives from source 26 (at which the controlled key elements 14 and 15 are closed) and n Switching off the same amount of flow in the opposite direction, core 1 is prepared for a new non-destructive survey cycle. At the same time, the information previously recorded in information cells 22-25 under the action of discharge currents and information

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25

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The cell 21 under the action of the positive impulse of the source 26 cannot be destroyed, because only 40 switching of the limited magnitude of the magnetic flux occurs. The code combination distortion can be monitored, for example, at the moment the negative pulse arrives from the source 26, according to the polarity of the total emf induced in the serially connected output windings b and 7. By adjusting the amplitude of the first positive pulse 1 after setting the core 1 using potentiometer 13 entering into the winding 4, it is possible to achieve such a distribution of the switchable flow between the jumpers of the information cell 21, such that upon subsequent reading from informational 5 5 cells (21-25) with a target 'source pulse 26) with the correct code combination in series' and counter-connected output fields, coils 6 and 7, the EMF is not induced (the code combination is correct if "1" is written in w of η information cells 22-25, where n, ^ is the weight characteristic of the code). Then, if the error in the code combination has the character ’pre- 65

rotation "1" and "0", the EMF in the output winding 6 will exceed the total EMF, 'windings 7 and with series-connected windings 6 and 7 is removed'. signal (of the same polarity /. If the error in the code combination has the character of turning "0" into "1", then the total emf of the windings 7 will exceed the emf in the output winding bis of the serially connected windings of the 7th signal, the signal (of opposite polarity) is taken.

Changing the number of connected information cells 22-25 and changing the potentiometer 13 to the amplitude of the positive pulse entering the winding 4, it is possible to detect errors in the codes with a constant weight characteristic for any values of the pit.

It should be noted that for the convenience of installing the required amount of code weight t, it is necessary that the number of turns of the output winding 6 be greater than the sum of the number of turns of the output windings 7 of the information cells 22-25. ..........

From the above, it follows that the control of distortions of the code combination in the device is carried out in two cycles. Before checking the code at the moment of receipt of the next negative pulse of the source 26 by applying a control signal ".Installation" to the terminals 16, the key element 14 opens and the core 1 is set to the initial magnetic state. With the arrival of the next (positive) pulse of the source 26, corresponding to the first cycle, η bits of the code being checked are recorded in information cells 22-25 and the value of u is recorded in information cell 21 by applying the "Write code weight" control signal to terminals 17 of key element 15 ( This control signal is given only once during the verification of one code). The next (negative) impulse of source 26, corresponding to the second cycle, performs non-destructive reading of information (controlled key elements 14 and 15 are closed), which is recorded in cells 21—25. The absence or presence of EMF in the output windings b and 7 at the same time signals accordingly the absence or presence of an error in the controlled code combination.

Due to the fact that when reading information in cells 21-25 is not destroyed, the control code can be carried out in subsequent cycles. When applying the “Setup” signal in the second clock cycle, the device is reset.

The proposed device can carry out, control codes and mode

with destructive readout. For this

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’........ Ί’ '

enough potentiometer 12 to translate into position when its resistance is zero. The control signal, "Installation" in this case is not required for device operation.

Claims (1)

Claim A logical memory device containing a branched balanced-type magnetic core consisting of series-connected branched and unbranched sections of the magnetic circuit, a recording winding with two sections located on the tongues of the branched sections of the magnetic circuit that form the source of the magnetic flux and included in the diagonal of the diode bridge, one of the arms of which is connected in parallel to the first current limiter, for example a potentiometer, and the first controlled key element, input and output current the coils located by the figure eight on the jumpers of the branched sections of the magnetic circuit, which form information memory cells, are due to the fact that, in order to expand the field of application by implementing the function of distortion control of code combinations with constant weight characteristic, it contains the second current limiter and the second controlled key element connected in series with the input winding of one of the information memory cells and included in the diagonal of the diode bridge, and the output winding of the specified information onnoy memory cells included oppositely connected relative to the windings in series in the output information of other memory cells. :