SU470853A1 - Control pulse recorder - Google Patents

Description

block 4 and using block 3 is connected to the output of the head 7. When the drum 1 rotates in the direction shown in the drawing by an arrow, the recorded signal moves to the head 7. At the same time, the recorded signal is reproduced by the head 7 coming through the block 3 to the input of the head 2, and again recorded on magnetic media at a distance from the first recorded pulse equal to the distance between head 2 and head 7. When properly set the distance between heads 2 and 7, the pulses will be evenly distributed on the carrier. The condition of uniform distribution of the pulses is the imposition of a T + l-ro pulse on 1.

This criterion is realized by isolating the L4-1th pulse and controlling its coincidence with the first pulse. The selection yV + of the 1st pulse is performed by counting the recorded pulses on the last turn reproduced by the head 7. To select the last turn, a reference pulse is recorded on the carrier simultaneously with the first pulse. This is achieved by the fact that the signal from the output of block 4 through the block

3 simultaneously with the arrival at the input of the head 2, the pa input of the universal head 6 is fed. After the recording of the reference pulse, the input of the head 6 is disconnected from the output of the block

4 using the block 3. The reference pulse when the drum 1 rotates is reproduced by the head 6 and from its output enters the input of the block 5, in which the counting of the reference pulses, i.e. the speed of the drum 1, is carried out by means of a counting device. during which the recording is made, numerically equal to the selected step Y, then at the moment when drum 1 completes Y - 1 turn, in the command generation unit 5, the number of pulses recorded on the drum reproduced by the head 7 will begin to be counted. Y means that the last pulse is recorded, but the counting is not interrupted, since it is necessary to reproduce this last recorded pulse, and before the moment when this pulse is reproduced by the head 7, it will count Y pulses. When the number L = Un is reached, one of the outputs of block 5 generates a command that enters the input of block 3. By this command, block 3 breaks the circuit between head 2 and head 7 and thereby stops further recording of pulses. When the drum performs At the speed of the head 7 will play the last recorded pulse. This pulse would be recorded on carrier as / V-f 1 pulse, if the circuit between heads 2 and 7 had not been broken. The signal from head 7 from the last recorded pulse is sent to time comparison with the reference pulse.

If these pulses coincide in time, the recording stops, and the device generates a signal indicating

by this. If the signal from the last recorded pulse does not coincide with the reference pulse, in block 5, logical operations are carried out to determine the magnitude and sign of the error. Accordingly, the output of block 5 produces a command including block 8, which moves the head 7 in accordance with the magnitude and sign of the error. At the same time, the generator 10 is turned on by the same command and the head 9 is used to erase

magnetic recordings. After block 8 has processed the error signal, it produces a signal that sets blocks 5 and 3 to the initial state and turns on block 4. The subsequent recording process is repeated in the same way as described above.

Subject invention

A device for recording control pulses containing a magnetically coated disk, a recording head, a playback head, an erase head connected by an input to the erase generator's output, a universal record-play head, an erase generator and a trigger unit, characterized in that control pulse records, it is equipped with a displacement unit that is mechanically connected to the playback head,

the command generation unit, the first input of which is connected to the output of the universal head, recording — playback, the second input — to the output of the playback head, and the third input — to the output of the displacement unit and

to the input of the start-up unit, and the second output is connected to the input of the transfer unit and to the input of the erase generator, and the switching unit, the first input of which is connected to the first output of the command generation unit, the second

the input is to the output of the start-up unit, the third input is to the output of the displacement unit and the fourth input is to the output of the playback head, the first output is connected to the output of the universal head, recording-playback,

and the second output is to the input of the recording head.