SU970444A1 - Device for magnetic recording - Google Patents

Description

The invention relates to instrument engineering, in particular, to a device for recording information on magnetic media / which can be used mainly in service equipment.

A device designed for equipment operating with magnetic media is made with an absolute level detector, a differentiator and a pulse interference suppression circuit that can occur when using a write pulse former. This device also has a number of logical elements and one threshold element, i.e. The electrical circuit of such a device is relatively complex, which allows it to have information of high confidence. one .

The device, however, has a disadvantage, which is especially apparent when using it in the recording channel - it becomes even more complicated, which is energetically disadvantageous and reduces overall reliability (with an increase in the number of elements used, the probability of malfunction increases)

The closest to the present invention is a magnetic recording device containing a clock pulse generator, valve block, a tape mechanism, the electrical circuit of which is made with two inputs, one of which is connected in series with a memory block and a writing pulse shaper, and

10 to the second - serially connected analog-to-digital converter and synchronization unit n control 2).

However, this device does not allow high accuracy.

15 to make a selection when playing the required information and marking it when recording.

The purpose of the invention is to improve the accuracy of the target when playing

20 required information and its marking when recording.

Claims (2)

The goal is achieved by the fact that a magnetic recording device containing a clock pulse generator, a valve block, a flap mechanism, whose electrical circuit is made with two inputs, one of which is connected in series with a parameter block and a pulse shaper records, and the second - serially connected analog-to-digital converter and a synchronization and control unit; an array extraction unit and zones are inputted, the input of which is connected by the output of the electrical circuit of a tape about the mechanism, and the output - with the synchro-nizka and control unit, to a separate input of which serially connected clock pulse generator and valve block are connected, with one output of the analog-digital converter connected to the second input of the recording pulse former and - with memory block input. I The drawing shows a block diagram of the proposed device. Analog-to-digital converter 1 is connected via a driver 2 with a tape recorder electric circuit 3 (the mechanism itself is not shown) loaded on an array and zone extraction unit 4 (an array and an information zone are used, which are not labeled). This block is connected both with the block 5 of memory through the block 6 of synchronization and control, and with the block 7 of the fan loaded onto the generator of 8-stroke pulses. Circuit 3 has inputs 9 and 10, shaper 2 write impulses have inputs 11 and 12, block 6 — outputs 13–16, and a valve block input 17. Output 16 and input 17 are connected to any tested installation (not shown) . Inputs 18 of converter 1 are connected to sensors (not shown). During the operation of the device, a signal arrives at input 17, which opens block 7 and then a signal from the generator 8 to input 19 of block 6 also allows the tape mechanism to start. As soon as this mechanism enters the stable operation mode, a signal arrives from block 6 on memory block 5, which allows the tested installation and the converter 1 to be put into operation in the selected mode. Then on. input 12 of the driver 2. There will be labels about the beginning of the array of information of a certain number and also about the beginning of the zone, and the input 11 - signals from the converter 1. At the moment when there is no need to continue the work of the tested installation, a prohibition signal comes from input 17 to block 7, and the generator 8 stops the supply of pulses generated by it 1c of pulses. At this moment, unit 6 generates signals that arrive in memory unit 5 to mark the end of the zone, and the operation of the tape drive stops. Then the cycle repeats. Similarly, the synchronization and control unit 6 provides signals to the memory unit 5 and about the complete cessation of work with the test installation. In the process of reproducing information, the latter arrives at block 4, which passes information on the output bus 20 on the zones and corresponding to the number of the array that is currently required for processing. At the end of the required array, block 4 delivers a “signal 6” to block 6, and the tape drive stops. The possibility of using both the actual tape drive mechanism and the entire electric circuit only at the required intervals allows the device to make it economically economical and more convenient for IB operation relative to the prototype device. Claims An apparatus for magnetic recording, comprising a clock pulse generator, a valve block, a tape mechanism, an electrical circuit of which is made with two inputs, one of which is connected in series with a memory unit and a driver of write pulses, and the second is connected in series a digital converter and a synchronization and control unit., characterized by the theme that, in order to improve the accuracy of the selection when playing the required information and marking it when recording and, an array allocation unit and a zone are inputted into it, the input of which is connected to the output of the electrical circuit of the tape mechanism, and the output with the synchronization and control unit, to a separate input of which the series-connected clock generator and the valve assembly are connected the digital converter is connected to the second input of the write pulse driver, and the other to the input of the memory unit. , Sources of information received by you in the examination of the USSR Copyright Certificate of USSR 672640, cl. Q 11 v5 / 09, 1978. 2. USSR author's certificate No. 744656, cl. G 06 K 1/22, 1979 (prototype).