SU377867A1 - ALL-UNION I - Google Patents

Description

one

The invention relates to computing and can be used in memory devices with reading without destroying information.

In the case of a known method of selective information, a barring current of one polarity is fed into the storage device by a barring winding passed through the modulation holes of all cores, and the interrogation current compensating the effect of the barring current is passed through the interrogation windings passed through . According to the discharge windings, the recording current of one or another polarity is applied, corresponding to; the write “1 or“ O.

In the process of reading information on the survey winding of the selected number, a current is applied, and an emf is induced in the output winding. read sigala

The established case of case reading information comes up only from the second and subsequent interrogation current pulses. This is due to the fact that during the process of recording information, the inhibit current has one polarity, and in the process of reading, the interrogation current has a different polarity.

After the recording process, the area of the modeling magvitoprovod under the action of the inhibition current remains in one of the positions of the residual magnetic induction, due to

whereby the first impulse of the current of the survey peremagnetizes a part of the modeling magnetic circuit in the opposite state of residual magnetic induction.

Subsequent pulses of the current survey reversal the area of the modeling magnetic circuit through the partial cycles of the hysteresis loop, ensuring reliable reading of the recorded information.

A disadvantage of the known method is that in order to ensure reliable reading of information, it is necessary to carry out a preliminary poll on all addresses of the storage device. This leads to the computation of computer time and the complexity of the design of the memory control device.

In order to reduce the loss of computer time on the proposed method of selectively recording information in the recording process

serves a full-wave inhibit current, the first half-period of which at the time of the selective recording is opposite to the polarity of the current of the poll, and the second half-period after the selective recording of information coincides with the current

survey.

FIG. 1 shows a matrix diagram of elements with a modulated magnetic resistance that implements a selective recording by the prohibition method; in fig. 2 is a timing diagram of current pulse control.

By winding / banning, passing through the module. The openings of all the cores, in the process of recording information, the full-wave current flows / g. The sampling recording of information is carried out by submitting to the winding 2 a survey of the required number of survey current / o to compensate prohibition / z polarity of the first half period. On the winding of the 3-bit write, the discharge-write / 3 currents are supplied. Information is recorded when the recording current / s and polling / o match after selectively recording information on the inhibit winding / the prohibition current / z of the second half-period flows, which coincides with the polarity of the interrogation current / o

Since 0 | ban banning / passed through the modulation holes of all cores, after the prohibition current flow of the second half period, reliable information is read at any address by the first impulse of the polling current.

Subject matter

The method of selectively recording information in a memory device by supplying a Surge current, which compensates for the effect of the inhibit current and the discharge current of a positive or negative polarity, characterized in that, in order to reduce the loss of scaling time, a full-wave inhibit current is supplied during recording, the moment of sampling is opposite to the polarity of the polling current, and the second half-period after the selective recording of information coincides with the polling current.