SU964711A2 - Device for recording and reproducing information - Google Patents

Description

(54) DEVICE FOR RECORDING AND PLAYBACK

INFORMATION

The invention relates to a magnetic recording technique, namely, devices for recording information on carriers, which can be used steel rails, pipes, ropes and other similar products.

Based on auton. St. No. 879642, a device for recording and reproducing information is known, comprising recording heads, reproduction heads / signal generator Zero-intersection, AND circuits, address setting unit, comparison unit and stop unit.

The recording heads are set at intervals along the recording track and connected to the recording unit. The playback heads are also set at intervals along the carrier track, the first playback head is connected to the Zero-intersection signal shaper, and the subsequent heads are connected to the first inputs of the AND schemes, the second inputs of which are connected to the outputs of the Shaper signal Zero-intersection Cl l However, due to the error in generating the Zero signal intersection

reduced reliability of reproduction.

The purpose of the invention is to increase the reliability of reproduction.

The goal is achieved by inserting two magnetic jumpers and two additional windings into the device for recording and reproducing information, the first (second) of which

10 is connected in opposite direction to the winding of the right left of the extreme recording heads and is placed on one of the magnetic jumpers installed between the magnetic core of the said heads.

15 records and corpus.

The drawing shows the block diagram of the device and the graph of the magnetic signal pattern for the code combination 20 10100 (the dashed line shows the waveform for the known device, the solid line for the proposed one).

The device contains a block of 1 magnetic heads 2 records, the last of

Claims (1)

25 of which are installed with an interval along the length of the track of the carrier 3, a block 4 of reproduction heads 5, also installed with an interval along the length of the track of the carrier 3, circuits AND 6, and the first inputs. which are connected to the windings of the playback heads 5, the ForMHpoBaTejjb 7 signal Zero-intersection, the block 8 of the connection, connected to the outputs of the circuits And b, the outputs of the block 9 address storage and the input of the block 10 Astana. Between the housing 11 of the device and., The left and right heads of the 2 entries are magnetic jumpers 12 with the windings 13 placed on them, the last of which are connected in opposite to the windings of the extreme 2 entries. .. The device contains a divider 14, the input of which is connected to the output of the imager 7 sig.ala Zero, intersection, and the output is connected to the second inputs of the circuits AND 6.. The device works as follows. A code combination of magnets is recorded on the carrier 3 by heads 2. prints. At the same time, the instantaneous circuit / containing case 11, jumper 12 and the magnetic circuit of the extreme head 2 record, additional magnetic prints are recorded on the carrier 3, the magnetization of which is opposite to the magnetization of the extreme heads of the 2 recordings When played back, the magnetic ones printed on the carrier 3 are successively move over the gaps of the magnetic heads, 5 reproducing, in this case, according to the reproduced signals, the former 7 and g; e-tracks Carrier 3 is stabilized by recording additional magnesium prints and increasing the steepness of the reproduced signal when going through a zero value. The signal from the output of the divider 14 allows the transfer of signals from the magnetic heads 5 to reproduce through the circuit. And to the inputs of the comparison unit 8. If the address code from the address storing and reproducing block 9 coincides; entered code, the output of the comparison block 8 is a signal that is controlled by the stop block 10. The invention allows to increase the reliability of reproducible information by 15-16%. The invention is a device for recording and reproducing information by author. St. 879642, of which is, with the aim of increasing the reliability of reproduction, two magnetic jumpers and two additional windings are introduced into it, the first second of which is connected in opposite to the winding of the true Left of the extreme recording heads and is located on one of the magnetic jumpers / installed between the magnetic core of the said recording heads and the housing. Sources of information taken into account in the examination 1. USSR author's certificate 879642, cl. G 11 B 5/00, 13.06.79.