SU1394234A1 - Device for processing a signal - Google Patents

Abstract

The invention relates to a magnetic recording technique. The purpose of the invention is to reduce the signal processing time into a signal with a high-frequency component divided into zones, the boundaries of which are set in block 5 for selecting zone c, the control signal through filter 7 and element 8 allowing the reproduced signal to pass through key 9 to the input of the analog-digital converter 10 (the ADC / "control signal starts the generator 13, the pulses of which interrogate the ADC 10 and input the signal to the line 11 of the link. Input frequency ratio to the link 11 of the high-frequency and low-frequency components is determined by the division factor of the frequency divider 14. After the end of the cycle, the signal from the output of the counter 15 closes the element 8 and the generator 13 stops working 2 or more

Description

This invention relates to a magnetic recording technique, namely, devices for processing signals reproduced from magnetic media,

The purpose of the invention is to reduce the signal processing time.

The figure shows the block diagram of the device; FIG. 2 shows timing diagrams for the operation of devices. FIG.

The device contains a recording unit 1, a playback unit 2, a converter of 3 reproduced signals into a code, a selector 4, a zone selection unit 5, a switch 6, a filter 7, an AND element 8, a key 9, a first analog-to-digital converter 10, a communication line II, a digital-analogue Converter 12, generator 13 pulses, frequency divider 14, counter 15 and second analog digital converter 16o

The device works as follows

The waveform recorded by the recorder is read by the reproducing unit 2. The signal from the high-frequency component (FIG-2a), corresponding to the change in the low-frequency parameter H (Fig.2b), is divided into zones of the boundary of which H and Hj. are set in block 5. During playback, the current value of the parameter H through converter 3 Enters the input of block 5 for selecting the zone, the output of which is generated by a control signal through filter 7 and an open element AND 8 allows the reproduced signal to pass through the key

9to analog-to-digital converter 10o input; Simultaneously, a control signal is triggered by a generator

13 whose pulses interrogate the analog-to-digital converter

10 and a signal is input to the line 11 of the connection. The values of the low-frequency parameter H are converted into a digital-analog converter 12 into analog form, and then through the analog-digital converter 16 are introduced into the communication line 11 synchronously and in phase with the high-frequency component. to the link 11 of the high-frequency and low-frequency components is determined by the division factor of the frequency divider 14, while maintaining the time scale of the input components

in line P connection. The counter 15 sets the number of polling pulses and cycles of input to the line 11 of the communication. After the end of the cycle, the control signal from the output of the counter 15 closes element 8 AND the generator 13 stops working. The cycle can also be terminated by signals from the output of the zone selection unit 5

This algorithm allows the process of forming arrays and processing information at the rate of its reproduction

Claims (1)

Invention Formula A signal processing device comprising a playback unit, the first output of which is connected via a key and the first analog-to-digital converter to the first busbar of the communication line, and the second output is connected to the input of the reproduced signals to a code, a switch, the first input of which is connected via a level selector to the first output of the converter of the reproduced signals into the code, the second directly to the second output of the converter of the reproduced signals into the code, and the third through the zone selector to the third output of the an emitter of the sensed signals into a code, a filter whose input is connected to the switch output, an AND element, the first input of which is connected to the filter output, and the output is connected to a key control input, characterized in that it is equipped with a pulse generator to shorten the processing time The input of which is connected to the output of the element I, the counter whose output is connected to the second input of the element AND, the digital-to-analog converter whose input is connected to the third output of the converter of the reproduced signals into code, divides A second analog-to-digital converter, the first input of which is connected to the output of the frequency divider, the second to the output of the digital-to-analog converter, and the output to the second bus of the communication line, the output of the generator is connected to the input of the frequency divider, to the counter input and to the polling input of the first analog-digital converter.