SU590823A1 - Storage - Google Patents

Description

one

The invention relates to the field of automation and telephony and can be applied, for example, in communication devices involving the joint operation of ferrite storage devices with electromagnetic relays.

Known storage devices of the matrix type with relay control, operating in the field of intense interference from electromagnetic relays 1.

Closest to the invention is a memory device containing a matrix storage device connected via write registers to a write pulse generator, through a read register to a read pulse generator, and directly to one of the inputs of amplifiers 2J. The disadvantage of this facility is its robustness.

The aim of the invention is to increase the reliability of the device. The goal is achieved by the fact that it contains the shaper of the duration of the strobe signal, the inputs of which are connected to the generator of read impulses and the output to other inputs of amplifiers.

FIG. 1 shows the flow chart

the proposed device, and FIG. 2 - time Chart diagrams of process, readout and

shaping the duration of the strobe signal.

The storage device comprises a write pulse generator 1, a write register 2, a matrix drive 3, a read pulse generator 4 with outputs 5 and 6, a read register 7, a strobe signal generator 8 that includes a front edge pulse detection unit 9, a shaping unit 10 and gating unit 11. The output terminals 12 of the matrix accumulator 3 are connected to amplifiers 13 having control inputs 14. A generator 1, generating. Rectangular recording current pulses, is connected to registers 2, whose contacts for sampling according to the input information of the recording buses of the matrix accumulator.

The output 5 of the readout generator 4, which produces a pulse-shaped reading current of the bell-shaped form, is connected to the first input of the driver 8 and the read register 7, the contacts of which sample the appropriate readout matrix matrix 3.

The output 6 of the generator 4 is connected to the second input of the imaging unit 8, the output of which is connected via the gating unit 11 to the enable inputs 14 of the amplifiers 13, which serve to amplify and fix the signals read from the output buses 12 of the array 3.

The generator 1 generates write pulses that pass through the contacts of the register 2 of the record to the write bus of the matrix drive 3. The contacts of the register 2 are turned on in accordance with the input information code. In addition, register 2 connects the address bus of the matrix nico-pitch 3, into which the zali impulse comes from the other output of the generator 1. At the intersection points of the horizontal and vertical recording pulses, the ferrite cores of the matrix storage 3 are switched and stored information is stored in them. To read the information, the generator 4 is started, the readout emulsion of which is bell-shaped from output 5 is fed through register 7 to the selected readout bus of matrix storage 3. In addition, the output pulse from output 5 is fed to the first input of the driver 8 of the gate duration and its signal to the second input which is supplied by a rectangular emulsion from the output 6 of the generator 4, the front of which front coincides with the beginning of a bell-shaped reading pulse. In block 9 of the imaging unit 8, these two signals are compared, as a result of which the leading edge of the strobe signal is determined, the duration of which is formed in block 10. The generated strobe pulse is fed to the input of the gate switches of the AND block, which open the enabling inputs 14 of the amplifiers 13. The pulse width The strobe signal is adjusted so that during the opening time is resolved, their inputs 14, amplifiers 13 are reliably switched by the output signals coming from the output buses 12 of the matrix drive 3.

FIG. 2 shows the form of pulses and voltages: / ST.5 - the form of current and voltage at the output 5 of generator 4; f / i) bix.i2 - output impulse on tires 12; t / vyb - rectangular emulsion from output 6 of generator 4; : (Out ..8. The strobe signal at the output of the driver 8; t / Bbix.i4 is the voltage pulse at the resolving inputs 14 of the amplifiers 13; 7/7/1, the voltage at the output of the amplifiers 13 at the moment of their switching.

Claims (2)

1. "Technical specification of the iM-20 computer. M., the USSR Academy of Sciences Academy of Sciences, 1965. 2. USSR author's certificate №180630, cl. G PS 7/00, 1966.