CS260019B1 - Checking device with control - Google Patents

Abstract

^The device belongs to computing technology and can also be used in digital devices. The aim of the solution is to increase functional reliability at the expense of eliminating the parasitic influence of transient processes, especially when using asynchronous counters, on the operation of the adding device with control. The device includes an input bus, a counter, an A element, a KEBO element, a decoder, flip-flops, A elements, A element, an output bus, a low-frequency filter, a complementary flip-flop, NE elements, output buses. The device for checking the operability of a binary counter increases the accuracy of checking the specified erroneous state changes in a binary counter, shortens the inspection time due to the production of an emergency signal at the moment of the appearance of an error, expands the functional possibilities by using the solution not only for checking the operability of counters in the mass production process, but also in digital devices to increase their reliability.

Description

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ΦΟΡΜΥϋΑ H30BPETEHHH

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HcTOMHHKH ΗΗφορΜβμΗΗ, npHHHTbie BO BHHMaHHe npH 9KCnepTH3e: SU, A, 1043668. SU, A, 1156251.

P E Φ E P A T

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Claims (1)

OBJECT OF THE INVENTION A control summing device comprising an input bus, a counter, a decoder having n-outputs d, n + 2 elements A, h flip-flops, n elements NE and an element OR whose inputs are connected to outputs n of elements A, each i-th output of the decoder (i = 1, ..., n) is connected to the input element NE, the output of which is connected to the first input element A, the second output of which is connected to a direct output the flip-flop, the input bus is connected to the first inputs of the n + 1-th an + 2-th element A, the output computers are connected to the inputs of the decoder, indicating that in order to increase reliability a low-frequency filter has been inserted into it the complementary flip-flop an additional elements A, each i-th output of the decoder is connected by a first input of the i-th supplementary element A whose output is connected to the input of the device to the i-th flip-flop unit, output of each i-th supplementary element the element A, in addition to the first one, is connected to the device input to both the zero and the 1-tilt circuit, the output of the first supplementary element A is the junction of the device to zero of the nth flip-flop, the direct output of each i-th flip-flop, except the nth, it is connected to the second input of the i + 1 th supplementary element A, the direct output of the n th flip-flop is connected to the second input element A, the output element OR is connected to the input of the low frequency filter, the output of which is connected to a step input a complementary flip-flop whose inverse output is coupled to a second input n + 1-th element A whose output is coupled to the counting input of the counter. 260019