SU864577A1 - T flip-flop - Google Patents

Description

(54) RECORDING DEVICE

The invention relates to a pulse technique and can be used in digital systems of automatic control and control, as well as in measuring and computing systems, for example, analog-to-code converters. A counting device is known which contains a counter, the outputs of which are connected to the inputs of the reader unit whose input is connected to the output of the reader, whose input is connected to the output of the inverter. A disadvantage of this device is the relatively low reliability of reading information. The closest technical solution); The invention is a recalculation device containing a counter, a rewriting node and a shaper whose input is connected to the read input of the recalculation device, the counting input of which is connected to the counting input of the counter, the outputs of which are connected to the information inputs of the rewriting node, the control input of which is connected with the output of the imager 21 The disadvantage of this device is the relatively low accuracy of reading information. The purpose of the invention is to increase the reliability of reading information. The goal is achieved by the fact that in a scaling device containing a counter, a rewriting node and a shaper, the input of which is connected to the read input of the scaling device, the counting input of which is connected to the counting input of the counter, the outputs of which are connected to the information inputs of the overwriting node, the control input of which is connected with the output of the driver, a trigger and an inverter are additionally introduced, the input of which is connected to the counting input of a scaler, which is connected to the first additional input of the ph tors, and the second additional input connected to the output of the inverter, and the first and second additional shaper outputs connected respectively to the clock inputs of the flip-flop and information. The shaper contains the first and second D-flip-flops, whose information inputs are connected to the shaper input, the output of which is connected to the direct output of the second O-flip-flop, the clock inputs of the first and second 0-flip-flops are connected respectively to the first and second additional inputs of the shaper, the first and second the additional outputs of which are connected to the direct and inverse outputs of the first and second D-flip-flops, respectively. The drawing shows a schematic diagram of the counting device. The circuit of the counting device contains counter 1, trigger 2, inverter 3, rewriting node 4 and shaper 5, the input of which is connected to the readout input b of the counting device, the counting input 7 of which is connected to the counting input of counter 1, the outputs of which are connected to the information inputs of the node rewriting 4, the control input of which is connected to the output of the driver 5, the input of the inverter 3 is connected to the counting input 7 of a scaler, which is connected to the first auxiliary input of the driver 5, the second auxiliary input cat It is connected to the output of the inverter 3, and the first and second additional inputs of the formative 5 are connected respectively to the tactical and informational inputs of trigger 2. Former 5 contains the first 8 and second 9 D-flip-flops, the information inputs of which are connected to the input of the former 5, the output of which is connected to the direct output of the second 0rigger 9, the clock inputs of the first 8 and second 9 O-flip-flops are connected respectively to the first and second additional inputs of the imaging unit 5, the first and second additional outputs are connected to the right m and inverse outputs, respectively, of the first 8 and second 9 D-flip-flops. The counting device operates as follows. From counting input 7 to the input of counter 1 pulses of the square wave type are received, on the leading edge of the positive differential of which the state of the counter 1 changes. Through input 6, the information inputs of the first 8 and second 9 D-flip-flops of the imager 5 receive a positive-field read pulse the duration of which must correspond to the odd count where the period of the counting pulses is, the duration of the read pulse. Since the duration of the impulse impulse acting on the information | Dion inputs of the first 8 and second 9 0-flip-flops is such that when the clock inputs of the D-flip-flop 8 arrive at their clock, the second D-flip-flop 9 - of the inverted counting pulse on the single the outputs of the first 8 and second 9 D-flip-flops will form at the corresponding time moment positive pulses that affect from the output of the first D-flip-flop 8 to the clock input of flip-flop 2, and from the single output of D-flip-flop 9 to the control input of the readout node 4, P At the zero output of the second D-flip-flop 9, an inverted counting pulse sets a zero differential, which is set to the information input of flip-flop 2. Thus, if the read pulse comes after the counting pulse on the counting input 7 in the first half of the period, then the refinement bit information is zero. And if the read pulse comes after the counting pulse has been applied to the count input 7 in the second half of the period, then the magnitude of the specifying bit information is equal to one. claims 1. A counting device containing a counter, a rewriting node and a shaper, the input of which is connected to the read input of a counting device, the counting input of which is connected to the counting input of a counter, whose inputs are connected to the information inputs of the rewriting node, the control input of which is connected to the output of the forming) , characterized in that, in order to increase the reliability of reading information, a trigger and an inverter are added to it, the input of which is connected to the counting input a device which is connected to a first input of the additional, second auxiliary input coupled to an output of the inverter, and the first and second additional vtshodr shaper composed respectively to the clock inputs of the flip-flop and information. 2. Recalculator according to claim 1, characterized in that the driver contains the first and second D-flip-flops, the information inputs of which are connected to the input of the shaper, the output of which is connected to the forward output of the second D-flip-flop, clock inputs of the first and second D-flip-flops are connected respectively, with the first and second additional inputs of the imager, the first and second, a number of additional outputs of which

. are connected with direct and inverse outputs (dami of the first and second 0-flip-flops respectively.

Sources of information taken ao attention in the examination

1.Patent of France 2057253. cl. H 03 K 21/00, 1969.

2. Gu, t. B.C. Integral electronics in measuring devices L., Energ, 1974, p. 101 (prototype). -

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Claims (2)

Claim 1. A recounting device comprising a counter, a rewrite unit, and a shaper whose input is connected to a read input of a recounter, a counting input of which is connected to a counting input of a counter, the outputs of which are connected to information inputs of a rewrite unit, the control input of which is connected to the output of the formatec, characterized in that that, in order to increase the reliability of reading information, a trigger and an inverter are additionally introduced into it, the input of which is connected to the counting input of the recounting device, which Din with the first additional input of the shaper, the second additional input of which is connected to the output of the inverter, and the first and second additional outputs of the shaper are connected respectively to the clock and information inputs of the trigger. 2. The recalculation device according to claim 1, characterized in that the former comprises first and second D-flip-flops, the information inputs of which are connected to the input of the former, the output of which is connected to the direct output of the second D-flip-flop, the clock inputs of the first and second D-flip-flops are connected respectively with the first and second additional inputs of the shaper, the first and second, swarm additional outputs of which are connected to direct and inverse outputs of the first and second D-flip-flops, respectively. Sources of information taken into account during the examination 1. French patent No. 2057253, cl. H 03 K 21/00, 1969. 2. Gutnikov V.S. Integrated Electronics in Measuring Instruments L., Energy, 1974, p. 101 (proto 5 type). ‘