SU1256229A1 - Device for selecting channel with extremal average voltage - Google Patents

Abstract

The invention relates to communication technology. The functionality is extended by estimating the degree of correctness of the selected channel with extreme mean voltage. The device contains two triggers (t) 1 and 2, generator 3 sawtooth voltage 3, three elements OR 4, 5 and 6, dif. amplifier 7, key (K) 8, element 9, counter (C) 10 and n channels, each channel consists

Description

from integrators, three channel K 12, 13 and 14, comparator 15, two channel T 16 and 17, two channel elements I 18 and 19. A device in each channel T 17 memorizes the channel number with an extremal average value of voltage. After selecting such a channel, And 19 elements prevent the passage of pulses to T 17, and And 18 elements form a signal for opening K 14 of the second largest invention. The invention relates to a communication technique and can be used in devices for receiving information.

The aim of the invention is to extend the functionality by assessing the degree of correctness of the selected channel with extreme mean voltage.

The drawing shows a structural electrical circuit of the proposed device.

The device for selecting a channel with an extreme average voltage contains the first and second triggers 1 and 2, the generator 3 sawtooth, first, second and third elements OR 4-6, differential amplifier 7, key 8, element I. 9, counter 10, and in each channel - the integrator 11, the first, second and third channel switches 12-14, the comparator 15, the first and second channel triggers 16 and 17, the first and second channel elements And 18 and 19.

The device works as follows.

The integrators 11 serve to average the rapidly varying interference voltages in the channels. The keys 12 are connected to the channel selection time with the maximum average voltage of the output of the integrators 11 by the first inputs of the comparators 15. The second inputs of the comparators 15 from the sawtooth voltage generator 3 are fed to the selection time of a linearly varying voltage. Triggers 16 serve for

maximum average voltage. Voltages from these channels are fed to the differential. amplifier 7, where amplified. The closer these voltage levels are in magnitude, the smaller the signal at the output of diff. amplifier 7 through which K 8 enters the output of the mouth. The goal is achieved by the introduction of T 2 and 17, the element OR 6, diff. amplifier 7, K 8, i: and 14, elements And 9, 18, 19 and CU. 1 il.

short-term memorization of the channel with extreme mean voltage.

The first trigger 1 starts the generator 3 of the saw-tooth voltage and opens the keys 12 for the duration of the selection. The first element, OR 4, generates a reset pulse for the flip-flops 16. The flip-flops 17 serve to memorize the channel number with an extreme average voltage. The keys 14 serve to open the second largest channel with a maximum average time. The keys 13 open the channel with the maximum average voltage. Elements And 19 prevent the passage of pulses to triggers 17 after selecting a channel with extreme

Q average voltage. Elements 18 form a signal to open one of the keys 14. Second trigger 2 controls the passage of pulses through elements 19. The pulse from the first output of counter 10 through elements 9 and IL 5 sets the triggers 16 to the zero state after selecting the channel with extreme average voltage. A pulse from the second output of the counter 10 unlocks the AND 18 element to open the key 14 and sets the trigger 1 to the zero state. The differential amplifier 7 amplifies the voltages applied to its inputs. Than

 The closer these voltage levels are in magnitude, the smaller the signal will be at the output of the differential amplifier 7. Kpuch 8 opens the output differential

amplifier 7 by the signal received at the second input key 8.

When a short pulse arrives at the device start input, the triggers 1, 16 and 17 and the counter 10 are set to the zero state. A start pulse from trigger 1 starts a generator 3 of the sawtooth voltage and opens keys 12. Averaged interference voltages from the outputs of the integrator 11 through the public keys 12 are fed to the first inputs of the comparators 15. A linearly varying voltage is supplied to the second inputs of the comparators 15. At the moment of equality of the voltages at the inputs of the comparator 15 in one of the channels of the device, this comparator 15 triggers and the flip-flops 16 and 17 in this channel overturn, since the second inputs of the And 19 s elements receive a single signal at the output of the trigger 2. At the output of this channel by owner. A single signal indicates 4to given channel with extreme voltage. The impulse from the output of the trigger 16 through the element OR 4 enters the second input of the counter 10 and to the second input of the element AND 9 from the output of the element AND 9 through the element OR 5 sets the triggers 16 to the zero state. The impulse from the output of the trigger 17 through the element OR 6 sets the trigger 2 to one state, as a result of which the impulses arriving at the first input of the elements And 19 through the element AND 19 will not pass and the overturning of the trigger 17 does not occur. A single signal from the output of the inverted flip-flop 17 opens the key 13 corresponding to this channel, from the output of which the channel voltage with an extreme average voltage is fed to the second input of the differential amplifier 7. The voltage at the output of the sawtooth generator 3 continues to decrease Equal voltages at the inputs of the comparator 15 trigger the comparator 15 and overturn the trigger 16 of this channel. The impulse from the trigger output 16 through the element OR 4 hits the second input of the counter 10, as a result of which the first output of the counter 10 has a zero signal and the second output has a single signal that goes to the second

The two inputs of the elements are And 18 and to the second input of the trigger 1, as a result of which the trigger 1 is set to the zero state. The keys 12 and sawtooth generator 3 are reset. The inverted trigger 16 is not set to the zero state, since the first input of the element And 9 receives the zero signal from the first output of the counter 10. Through the public key 14 of this channel, the channel voltage with the second largest maximum voltage goes to the second input of the differential amplifier 7 According to the signal coming to the gate input, the voltage from the output of the differential amplifier 7 through the switch 8 goes to the output of the device.

five

Claims (1)

Invention Formula A device for selecting a channel with an extreme average voltage, comprising a first trigger, the output of which is connected to the input of a sawtooth generator, the first and second elements OR, and in each channel an integrator, the output of which is connected to the first input of the first channel switch, the output of which is connected to the first input of the comparator, the output of which is connected to the first input of the first channel trigger, the output of which is connected to the corresponding input of the first OR element, the second input of the first channel switch is connected to the input One sawtooth generator, the output of which is connected to the second input of the comparator, the inputs of the integrators of each channel are the signal inputs of the device, the start input of which is the first input of the first trigger and the first input of the second OR element, which is currently that, in order to extend the functionality by estimating the degree of correctness of the selected channel with extreme average voltage, a third OR element, a second trigger, a differential amplifier, a key, an AND element and the counter, the first output of which is connected to the first input of the AND element, the output of which is connected to the second input of the second OR element, the first input of which is sub-S is connected to the first input of the counter and to the first input of the second trigger, the second input of which is connected to the output of the third element OR, the second input of the counter is connected to the second input of the And element and to the output of the first R-SHI element, the output of the differential amplifier is connected to the first input of the key, the second the counter output is connected to the second input of the first trigger, and the second and third channel switches, the second channel trigger and the first and second channel elements I are entered in each channel, the first inputs of which are connected to the output of the first channel tr ggera second vhsd which is connected to the output of the second OR gate, pervsh input coupled to a first input of the second flip-flop channel, whose output is connected to a corresponding input Editor V. Ivanova Zakae 4837/58 Compiler 0. Geller Tehred ILopovich Proofreader O. Lugova Circulation 624 Subscription. VNIIPI USSR State Committee for inventions and discoveries 13035, Moscow, Zh-35, Raushsk nab., d, 4/5 Production and printing company, Uzhgorod, st. Project, 4 562296 the third RFlli element and the first input of the second channel switch, the output of which is connected to the first input of the differential amplifier, the second r input of which is connected to the output of the third channel switch, the first input of which is connected to the first input of the second channel switch and the integrator output, the second input To the third channel key is connected to the output of the first channel element I, the second input of which is connected to the second output of the counter, the second input of the second channel trigger 15 is connected to the output of the second channel element I, the second input of which is connected to the output of the second trigger, the second key input being the gate input of the device whose outputs are the outputs of the second channel trigger and the key output.