SU1631728A1 - Position coder - Google Patents

Abstract

The invention relates to automation and computing and can be used in information coding systems and telemetry systems. The purpose of the invention is to simplify and improve the efficiency of the encoder. The encoder positional code contains a generator of 1 clock pulses, the first and second elements And 2, 3, block 4 input information, the first and second multiplexers 5, 6, the counter 7 pulses, a group of 8 elements EXCLUSIVE OR. 1 il.

Description

The invention relates to automation and computing and can be used in information coding systems and telemetry systems.

The purpose of the invention is to simplify and improve the efficiency of the encoder.

The drawing shows the functional scheme of the encoder.

The encoder of the positional code is the clock pulse generator 1, the first and second elements are AND 2, 3, the information input unit 4, the first and second multiplexers 5 and 6, the pulse counter 7, a group of 8 elements EXCLUSIVE OR.

The encoder works as follows.

After switching on the encoder, oscillator 1 continuously generates clock pulses. Assuming that all the outputs of block 4 are set to levels O, the inverse outputs of multiplexers 5 and 6 and respectively the control output of the encoder present level 1. This state of the elements of the encoder ensures the passage of clock pulses from the output of generator 1 through element 2 to input counter 7, which generates at its outputs a sequence of address codes corresponding to the switching sequence of the outputs of block 4 by multiplexers 5 and 6, with switching being conducted by multiplexer 5 in the direction from the youngest water block 4 to the older, and multiplexer 6 - in the opposite direction - from older to younger. When switching to the output of one of the multiplexers of the active output of block 4, i.e. an output at which level 1 is set, an output level O is formed at the output of the corresponding multiplexer, which is also set at the control output, which leads to locking element 2A and counting off by the counter 7, in which the address code of the information input corresponding to S is recorded

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multiplexer. Depending on how the multiplexer generated the level O at the control output, the elements EXCLUSIVE OR groups 8 transmit to the information outputs of the encoder either direct or inverse code stored in the counter 7. In both cases, the output code is the number active output of block 4, recorded in binary code.

When level 1 is removed from one of the outputs of block 4, the elements of the encoder return to a state that ensures the counter continues counting, 7 clocks arriving at its input.

Claims (1)

Invention Formula Position code encoder containing a clock pulse generator, the output of which is connected to the first input of the first element I, the output of which is connected to the input of the counter im0 pulses, the bit outputs of which are connected to the corresponding address inputs of the first multiplexer, the information input unit, the outputs of which are connected to the corresponding information inputs of the first and second multiplexers, the second AND element, characterized in that, in order to simplify and improve the efficiency of the encoder, a group of EXCLUSIVE OR elements, the first inputs of which and the address inputs of the second multiplexer are connected to the outputs of the pulses counter bits, the output of the first multiplexer is connected to the first the input of the second element AND the second inputs of the EXCLUSIVE OR elements, whose outputs are information outputs of the encoder, the output of the second multiplexer is connected to the second input of the second And element, the output of which is connected to the second input of the first AND encoder . five five