SU678512A1 - Digital information reproducing device - Google Patents

Description

I

The invention of the invention of 1FIorostroyiyu.

A device for reproducing digital information is known which contains a clock extraction unit, a dedicated code pulse unit and an error correction unit due to the high frequency noise component (11. The device does not allow the timing pulses to be pulled out at the signal drop points and the digital information written with redundancy, i.e., when each bit of information is recorded on a magnetic carrier in groups of two units or zeros. The device consists of a demodulator consisting of a binary unit and a sync generator, as well as a clock bus and a code bus 121. The known device does not allow reproducing digital information recorded with something else, e; when each bit of information is recorded on a magnetic carrier by groups of binary ones or zeros.

The aim of the invention is to increase the functionality. The circuit is achieved in that the apparatus is further provided with a counter clock, counter pulses units, a decoder and a delay line, wherein one output of the demodulator is connected to the output line clock device and the input deiyufratora through the clock counter, the other output of the demodulator is connected to an output code bus via a pulse counter

units and a decoder, the output clock of the device clock pulses is connected to the inputs for setting the zero of the counter with the impulse counters and the pulse counter of the units via the delay line.

FIG. I shows the block diagram of the device;

figure 2 - timing charts of his work.

The device contains a demodulator 1, an input connected to the output of the magnetic recording-playback path (not shown) and

one output connected to the counting input of the counter of clock pulses 2, and the second output to the counting input of the calculator of pulses of units 3. The output of the sync pulses is connected to the input