SU390522A1 - DEVICE FOR INDICATION - Google Patents

Description

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Proprietary is in the field of auto-math and computing.

A device for indication is known comprising a clock pulse generator, logic elements, indicator lamps, the cathodes of which are combined and connected to the outputs of the decoder.

The proposed device is different in that, in order to simplify and increase the reliability of operation, in it the direct and inverse inputs of the decoder are connected to the outputs of the OR circuits, each of which is connected to the inputs of one of the outputs of the binary-decimal notebook through the schemes "And, associated with a clock pulse generator.

The drawing shows a functional diagram of a stroboscopic indication device, which contains a generator / clock pulses, counting tetrads aa of potential triggers 2, coincidence circuits 3, ILR1 4 circuits, inverters 5, decoder 6, cathode switches 7, and digital discharge lamps 8 (Indicator ).

The output of each phase of the generator / clock pulses is connected to the inputs of the resolution of the coincidence circuits 3, as well as the anode of the corresponding indicator lamina 8. Other inputs of the coincidence circuits of each tetrad are connected to the zero outputs of the potential triggers. The impulse at the output of the coincidence circuit appears to be three presence of a resolution impulse.

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and when the state of the corresponding trigger changes,

The outputs of the same-name coincidence circuit 3 of each counting decade are connected via

OR 4 schemes to the corresponding four inputs of the decoder 6, as well as to the inputs of the inverters 5, which serve to restore the return code; the inverter outputs are connected to the rest of the decoder inputs.

The proposed device operates as follows.

Recorded on trigger tetrads 2, the number of LOTs gives a control potential to the inputs of the coincidence circuits 3. A resolution pulse with

clock generator / polls one tetrade, when the potential coincides with the pulse at the output of the coincidence circuit 3, the pulses in tc are transmitted through the “OR 4” circuits to the odd inputs of the decoder 6, and

and the IMPROVEMENT - on its even inputs. A control pulse appears at one of the outputs of the decoder, which is additionally amplified by the cathode key 7 and is fed to one of the cathodes of the indicator lamps 6.

The voltage of the pulse in the india | capacitor lamps 5 is not enough to ignite the gap, however, simultaneously with the resolution pulse, a positive pulse is applied to the anode of the corresponding indicator

lamps. The coincidence of the anodic and cathodic Nm-pulses in time ensures that the corresponding figure is highlighted in one of the bits. The flashing of numbers takes place at every turn with each frequency, which is defined by a clock pulse generator, which allows to simplify the device and the display process. The subject of the invention is a display device containing counting tetrads, indicator lamps whose cathodes of the same name are about 7: 2 connected and through keys are connected to the outputs of the decoder, a generator of clock pulses and logic circuits, characterized in that, in order to simplify and improve; the devices, in it the direct and inverse inputs of the decoder are connected to the outputs of the circuits P1LI, of which are connected by inputs to one of the outputs of the binary-decimal tetrad through the circuits connected with the geyrator of that. imioluv

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