SU1361555A1 - Signature analyzer - Google Patents

Abstract

The invention relates to automation and computing and can be used to control discrete objects. The aim of the invention is to simplify the analyzer. The signature analyzer contains an encoder 1, a shaper of 2 signatures, an indication unit 3, a shaper of 4 time signals, one-shot 5, element OR 6. The algorithm of the analyzer's operation is the following: when it arrives at its information input logical 1 or O, they are transmitted to the shaper input the signatures are unchanged, and when signals of the third state are received, Z receives two signals of logical 1 at the input of the signature generator. Simplification of the design compared to the prototype consists in the absence of a trigger and a switch. 3 ill., 1 tab. : oo 05 ate a joint venture

Description

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The invention relates to automation and computing and can be used to control discrete objects.

The aim of the invention is to simplify the analyzer.

FIG. a block diagram of the analyzer is presented; in fig. 2 is a block diagram of a signature driver; in fig. 3 - timing diagram of the signature analyzer.

The analyzer (Fig. 1) contains a cipher, a rator 1, a shaper of 2 signatures, a display unit 3, a shaper of 4 time signals, a one-shot 5, an element of OR 6, an information input 7, a synchronous input 8 of the analyzer, an auxiliary sync signal 9, a sigal 10 shift, an output I1 of the first bit of the encoder, output 12 of the second bit of the encoder and control input 13 of the analyzer

The signature generator (Fig. 2) contains an adder 14 modulo two, a shift register 15 with feedbacks to the inputs of which the first output 11 from the encoder 1 and the outputs of the seventh, ninth, twelfth and sixteenth bits of the shift register, element 16 are connected , the inputs of which receive a signal from the output of a tel 4 time signal and a shift signal 10 from the output of the OR 6 element, the output of the AND 16 element is connected to the shift input of the shift register 15.

The timing diagram (Fig. 3) shows the control signal from the output of the time signal generator (Fig. 3A), the signal from the second output 12 of the encoder (Fig. 3 b), the synchronization signal from the synchronous input 8 (Fig. 3 Sv) and auxiliary. key synchronous signal 9 (Fig. 3g).

Signature analyzer works as follows.

Controlled input information is supplied as a next input bit via input 7 to encoder 1 in time with the clock signal at input 8 (Fig. 3b), which is synchronized with the external signal of the measurement window at input 13, which forms the appropriate window with the help of the time generator 4. (Fig. 3ct). Depending on the state of the input bit, encoder 1 encodes each bit of information into two bits according to the table.

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Z is the third signal state of the incoming information.

The output 11 of the encoder 1 is connected to the information input of the signature generator 2, the output J2 of the encoder 1 is connected to the enable input of the single-oscillator 5, the trigger input of which receives a sync signal from input 8. The single-oscillator is started from the falling edge of the sync signal from input 8 at

the presence of logical 1 at its enable input (Fig. 3g), which takes place when a third state signal arrives at the analyzer input, and the resulting auxiliary sync signal 9 (Fig. 3g) performs an additional shift in the signature generator 2.

The information is shifted in the shaper by the sync signals coming from an AND 16 element output,

which comes to the first entrance

signal from the driver 4 time I

signals, the second input is connected to the output of the element OR 6.

Thus, when logic 1 and О arrive at the information input analyzer, they are transmitted to the input of the signature generator unchanged, and when signals arrive

the third state Z to the input of the signature generator receives two signals of logical one each. Compression of information occurs in accordance with the polynomial

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P (k) X + X + X + X + 1.

The result is a valid signature of monitored information that has three states.

It should also be noted that, in the proposed analyzer, an increase in the length of the input information of the signature generator depends only on the number of information units in the input sequence corresponding to the third state, which practically provides a significant reduction compared to the known device.

Claims (1)

Invention A signature analyzer comprising a time signal generator, a signature generator, an encoder, a single-vibrator, an OR element and a display unit, the input of the analyzer measurement window setting connected to the input of the time signal generator, the output of which is connected to the Start / Stop input of the signature generator . The information input of the analyzer is connected to the input of the encoder, the synchronous input of the analyzer is connected to the one-shot start input and the first input of the OR element, the second input and output of which are connected respectively to the one-shot output and the signature driver's synchronous input, the output group of which is connected to the group of inputs of the display unit, characterized by , in order to simplify the analyzer, the first output of the encoder is connected to the information input of the signature generator, the second output of the encoder is connected to the enabling input of one-way rrator. Vuz. i