SU568971A2 - Magnetic memory - Google Patents

Description

NIKOV in the direction opposite to the tires of the 1st bit, the mode bus is inserted, connected to the output of the mode current driver and stitched through the first outer holes of the cores in one direction and through the central holes in the other direction.

In the proposed device, the introduction of a mode bus allows sushi to significantly reduce the level of interference when reading information.

The drawing shows the scheme of the proposed magnetic storage device. Magnetic memory, its device contains a memory matrix 1, made on three-hole cores 2 of fluxor type from material with BCP, stitched with sampling buses 3, 4, passage w, through large holes of cores, with mode bus 5 passing through the first extreme holes of cores in one direction, and through the central holes in the other direction, by the control bus of the output 6, passing through the second outer holes of the cores. The sampling buses 3, 4 are connected to the sampler current sampler 7, 8, the mode 5 driver is connected to the current driver 9, and the control output bus is connected to the recording and pickup control unit 10, whose input receives signals from the local control device and the recorded code numbers

In the proposed device, the required storage element is sampled using a magnetic decoder on the principle of prohibition. The memory access cycle begins with a read. In the first cycle, current pulses are supplied to the sampling buses 3, 4 and the mode bus 5. The currents passing through the buses 4 are inhibited. Md with. These currents act around the large hole in the core clockwise and cannot change the information states of the cores. The current passing through one of the buses 3 operates in the opposite direction. In all the cores of the accumulator, except for one, the action of this current is compensated by inhibition currents. In the selected core (in which the inhibition currents do not operate), information reading processes will occur. In the second reading cycle, it is necessary to transfer the selected core to the required magnetic state, which is achieved by feeding the bus through the large holes of the current cores, ppm. with. which decouples 1PO clockwise. In order not to lay a special winding and not to use an additional current driver,

one can use any two formers from the group of current formers of sample 8 related to one bit of the address code. With simultaneous triggering of a pair of samplers

once all the cores of the accumulator are under the influence of their currents, the chosen core will go to the required state, the state of the other cores of the accumulator will not change.

The recording of information begins with the supply to the control panel of the output 6 current with an amplitude much smaller than the core moving circuit along the contour around the small hole, and polarity depending on the code being written. In order for this current to change the state around the specified circuit, around its large hole, an alternating ppm is created. with. alternating pulses of the sample in the first cycle and pulses on a pair of windings

one bit of a group of windings 4-in the second cycle. Experiments show that three to four periods of alternating ppm with. “Against the background of the control current is enough for reliable recording of information.

Comparative tests of this magnetic storage device with the known technology have shown that reading information using current mode allows you to increase the signal-to-noise ratio by a factor of 3-4.

Formula of invention

Magnetic storage device auth. St. 532132, the difference is that, in order to increase the signal-to-noise ratio, it contains a mode bus connected to the output of the current mode driver and stitched through the first outer holes of the cores in one direction and through the central holes in the other direction.

Sources of information taken into the three expert examinations

1.V. V. Bardil V. I. Perekatov “Fluxor as an element of storage devices,

publishing house ITM and VT, 1962.

2. USSR author's certificate No. 532132, cl. G PS 11/08, 1975.

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