RU2517295C1 - Pulse selector - Google Patents

Abstract

FIELD: radio engineering, communication.

SUBSTANCE: pulse selector is designed to reproduce the med(τ₁,…,τ₅) operation, where τ₁,…,τ₅ denote the duration of positive pulses of signals x₁,…,x₅∈{0,1}, synchronised on the leading edge, and can be used in automatic control systems as an information preprocessing means. The pulse selector comprises a resistor (1) and fourteen switches (2₁₁,…,2₄₂).

EFFECT: broader functional capabilities by facilitating processing of five pulse signals.

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Description

The invention relates to a pulse technique and can be used to build automation, functional units of control systems, etc.

Pulse selectors are known (see, for example, Fig. 83 on p. 133 in the book Digital and analog integrated circuits: Reference book / S.V. Yakubovsky, L.I. Nisselson, V.I. Kuleshova et al .; Ed. SV Yakubovsky. - M .: Radio and communications, 1989), each of which has an output and reproduces the operation med (τ ₁ , τ ₂ , τ ₃ ), where τ ₁ , τ ₂ , τ ₃ are durations three positive pulse signals synchronized on a rising edge.

The reason that impedes the achievement of the technical result indicated below when using known pulse selectors is limited functionality due to the fact that five pulse signals cannot be processed.

The closest device of the same purpose to the claimed invention in terms of features is the pulse selector adopted for the prototype (Fig. 1 on page 9 in the book G. G. Charaev. Technical Diagnostics of Discrete Integrated Electronics Devices. - M.: Energy, 1974) , which has an output and reproduces the operation med (τ ₁ , τ ₂ , τ ₃ ), where τ ₁ , τ ₂ , τ ₃ are the durations of positive pulse signals x ₁ , x ₂ , x ₃ ∈ {0,1}, synchronized in front front.

The reason that impedes the achievement of the technical result indicated below when using the prototype is limited functionality due to the fact that five pulse signals cannot be processed.

The technical result of the invention is the expansion of functionality by ensuring the reproduction of the operation med (τ ₁ , ..., τ ₅ ), where τ ₁ , ..., τ ₅ are the durations of the positive pulse signals x ₁ , ..., x ₅ ∈ {0,1}, synchronized on a rising edge.

вход и выход которого соединены соответственно с управляющим входом всех ключей i-й группы и выходом первого ключа четвертой группы, подсоединенным через резистор к шине нулевого потенциала.The specified technical result in the implementation of the invention is achieved by the fact that in the pulse selector containing the output, the peculiarity lies in the fact that a resistor and fourteen keys are introduced into it, which are grouped into four groups so that the first, second, third and fourth groups respectively contain three , five, four and two keys, the even and odd keys of the formed groups are respectively opened and closing, in each group the output of the previous odd key is connected to the output of the subsequent key a, in each group except the fourth, the input of the previous even key is connected to the input of the subsequent key, and the outputs of the first, third and inputs of the first, third, fourth keys of the third group are connected respectively to the inputs of the first, second keys of the fourth group and the outputs of the first, third, fifth keys the second group, connected by inputs respectively to the bus of the unit potential, outputs of the first, third keys of the first group, the inputs of which are connected respectively to the bus of the unit potential, the fifth input of the pulse village Ktorov, i-th

the input and output of which are connected respectively to the control input of all the keys of the i-th group and the output of the first key of the fourth group, connected through a resistor to the bus of zero potential.

Figure 1 presents a diagram of the proposed pulse selector. Figure 2 shows the timing diagrams explaining the principle of its operation.

вход и выход которого соединены соответственно с управляющим входом всех ключей i-й группы и выходом ключа 2₄₁, подсоединенным через резистор 1 к шине нулевого потенциала.The pulse selector contains a resistor 1 and fourteen keys 2 ₁₁ , ..., 2 ₄₂ , which are grouped into four groups so that the first, second, third and fourth groups contain respectively three keys 2 ₁₁ , 2 ₁₂ , 2 ₁₃ , five keys 2 ₂₁ , 2 ₂₂ , 2 ₂₃ , 2 ₂₄ , 2 ₂₅ , four keys 2 ₃₁ , 2 ₃₂ , 2 ₃₃ , 2 ₃₄ and two keys 2 ₄₁ , 2 ₄₂ , moreover, the even and odd keys of the formed groups are made respectively opening and closing, in each group the output of the previous odd key is connected to the output of the subsequent key, in each group except the fourth the input of the previous even key with it is single with the input of the subsequent key, and the outputs of the keys 2 ₃₁ , 2 ₃₃ and the inputs of the keys 2 ₃₁ , 2 ₃₃ , 2 _{34 are} connected respectively with the inputs of the keys 2 ₄₁ , 2 ₄₂ and the outputs of the keys 2 ₂₁ , 2 ₂₃ , 2 ₂₅ connected by the inputs, respectively to the bus of the unit potential, the outputs of the keys 2 ₁₁ , 2 ₁₃ , the inputs of which are connected respectively to the bus of the unit potential, the fifth input of the pulse selector, i-th

the input and output of which are connected respectively to the control input of all the keys of the i-th group and the output of the key 2 ₄₁ connected through a resistor 1 to the bus of zero potential.

The work of the proposed pulse selector is as follows. At its first, ..., fifth inputs, positive impulse signals x ₁ , ..., x ₅ ∈ {0,1}, respectively, synchronized along the leading edge, have durations of τ ₁ , ..., τ _5, respectively. If a logical “1” or a logical “0” acts on the control input of all keys of an arbitrary group, then each odd key of this group is respectively closed or open, and each even key is respectively open or closed. Thus, the pulse signal at the output of the proposed pulse selector is determined by the expression

where ·, ∨, ^- are the symbols of conjunction, disjunction, inversion. Therefore, the selector (figure 1) will reproduce the operation τ _Z = med (τ ₁ , ..., τ ₅ ) (see figure 2).

The above information allows us to conclude that the proposed pulse selector has a wider functionality compared to the prototype, as it provides the processing of five pulse signals.

Claims (1)

A pulse selector containing an output and characterized in that a resistor and fourteen keys are introduced into it, which are grouped into four groups so that the first, second, third and fourth groups contain three, five, four and two keys, respectively, with even and odd keys the formed groups are made respectively opening and closing, in each group the output of the previous odd key is connected to the output of the next key, in each group except the fourth input of the previous even key is connected to the input of the subsequent key yucha, and the outputs of the first, third and inputs of the first, third, fourth keys of the third group are connected respectively to the inputs of the first, second keys of the fourth group and the outputs of the first, third, fifth keys of the second group, connected by inputs to the unit potential bus, outputs of the first, third keys of the first group, the inputs of which are connected respectively to the bus of the unit potential, the fifth input of the pulse selector, i-th

the input and output of which are connected respectively to the control input of all the keys of the i-th group and the output of the first key of the fourth group, connected through a resistor to the bus of zero potential.

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