SU1307479A1 - Method of checking multichannel digital magnetic tape recorder - Google Patents

Abstract

This invention relates to the accumulation of information. The purpose of the invention is to increase the reliability of control of the magnetic recording apparatus. The shaper 2 generates a pseudo-random code sequence fed through the delay element 3 and directly to the recording unit 4, recording on the carrier 10, which is played by the unit 8, acting directly and through the delay element 7 on the comparison unit 5. The result of the comparison arrives at the prohibition element 6, where it is gated with the clock pulses allocated from the playback unit 8, which are selected during playback. The error signal from the output of block 6 of the ban enters the counter 9 errors. 1 il. & (L with

Description

1-1307479-2

The invention relates to cumulative reproduction after a delay in the storage of information, and in particular to methods given a time interval. control of multichannel device The device contains a master of the gene-specific magnetic recording. rator 1, connected by an output to the input

The aim of the invention is to increase the 5Former of the 2 pseudo-random codony of the reliability of the control of a multi-array pulse train; the digital magnetic magnetic output apparatus of the device is directly connected

records. and through element 3, the delay corresponds to the drawing. It shows one of them, primarily with odd and even inputs.

possible variants of the device for osu-Oblok 4 records, and block 5 comparison,

method of controlling a multistream-connected output to the first input

Ballroom of the digital magnetic element ban 6 and connected

records and inputs directly and through the eControl of multichannel delay apparatus 7 delay, respectively, to an even-digital magnetic recording according to the ny and odd outputs of block 8, the proposed method is performed slightly, connected in a clock blowing manner. output to the second input of the element 6 i. which is connected to

On the even and odd channels of the counter 9 errors. At the same time, the recording-reproduction of the monitored obloka 4 records and the digital multi-channel apparatus playback unit 8, interacting with the magnetic recording medium 10, record magnetic recordings, for example, with a pseudo-random code sequence, are part of the pulse control unit. At the same time, the recorded multi-channel apparatus of the digital pseudo-random code sequence, magnetic recording, pulse performance on the even channel of the device occurs after recording-reproduction in the following way, with a delay of a predetermined time interval relative to its recording on the odd-formatted channel of the pseudo-random recording channel. playback. .30 code sequence of pulses Then the recorded pseudo-random code sequence of pseudo-random code sequence of pulses from the master oscillator 1 is reproduced in even and odd, clock sequence by the name channels of recording-reproduction of pulses from master oscillator 1. A sequence of pulses is applied, the comparison is made by cutting directly and directly through the playback elements of the recorded pseudo-element 3 delays per block 4 of the recording. A randomly sequential code-4 block records the pulses in even and odd numbers The tape recorder 10 is a replayed recording / replay playback. The control from which it is performed before the comparison is carried out by the com 8 playback, which affects the delay of the playback result directly and through the element 7 of the recorded pseudo-random code delay on the comparison block 5. When a sequence of pulses is in the odd-numbered, the pseudo-random code-n channel of the record-reproduction in the sequence of pulses over an evenly given interval of the time-channel of the record-reproduction is relatively delayed in the even-numbered recording channel its recordings on the odd-numbered channel of the work. After that, the playback-recording is performed for a given in- strobing of the comparison result, the time interval defined by the elements selected during playback as well as 3 delays. Before entering the commanding pulses and the formation of sig-block 5 comparison, the result reproduced the errors. In this case, the formation of recording of the recorded pseudo-random error signal is carried out in a case of a sequence of inequality pulses when comparing the result, the odd record-reproduction channel of the recorded pseudo-service is delayed relative to the random code sequence of its reproduction in even-numbered pulses in the even recording channel -the-record-play-channel on the same product and its result is the reproducible set time interval, described in the odd-n channel of the record-p set by element 7 delay. The result of the comparison with the comparison unit 5 is fed to the prohibition element 6, in which it is gated by the stimuli given during playback of the pulses from the playback unit 8. The error signal from the output of block 6 of the ban enters the counter 9 errors.

Claims (1)

Claim 0 A method for controlling a multichannel digital magnetic recording apparatus by recording a code sequence of pulses on even and odd recording / reproducing channels, reproducing a recorded code sequence of pulses on even and odd recording / reproducing channels, and comparing the reproduction results of a recorded code sequence of pulses on even and odd recording channels playback with subsequent gating of the comparison result selected during playback of clock pulses and Compiled by Y. Rosenkrantz gd§21oR- GulkoTehred V..Ke Hector M.Sharoshi Order 1637/50 Circulation 590 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 0 five 0 five and the formation of an error signal, characterized in that, in order to increase the reliability of the control, the recording of a pulse code sequence over an even recording-reproduction channel is delayed by a predetermined time interval relative to its recording on an odd recording-reproduction channel, and before comparing the production t delay the playback result of the recorded code sequence of pulses in the odd-numbered recording-playback channel; relate it to the result of its playback in the even-numbered recording channel-in the product of the same at a predetermined time interval, the error signal generation is performed in the case of inequality in the comparison result of reproducing the recorded code sequence of pulses in the even-channel recording and reproducing a result of its reproduction in the odd channel recording-reproduction after being delayed by a predetermined time interval.