SU1195381A1 - Device for magnetic recording of digital information - Google Patents

Abstract

The DEVICE for MAGNETIC RECORDING DIGITAL INFORMATION includes a master oscillator, the first output of which is connected to the counting input of the counter and to the control input of the first shift register whose information input is connected to the input bus, and the outputs are hooked to the information inputs of the first static register, the matrix memory block, the polling inputs of the bits of which are connected to the outputs of the counter, the address inputs of the rows are connected to the outputs of the first static register, the control input of which is connected to the second output The master oscillator ohm and the output of the matrix memory block are connected via a trigger to the input of a magnetic recording apparatus, characterized in that, in order to improve the accuracy of the recording of clock sync pulses by reducing undesirable combinations of regular repetition of individual characters in the recorded information the second static register and two series-connected delay elements, while the input of the first delay element is connected. to the first output of the master oscillator, the output of the first delay element is connected to the control input of the matrix memory block, the output of the second delay element is connected to the control input of the second shift register, whose information input is connected to the output of the matrix memory block, the outputs of the second shift register are connected to the information inputs of the second static register, the control input of the last .o is connected to the same input of the first static register, and the outputs of the second static register cheny to the address inputs of the block of columns of the matrix memory.

Description

The invention relates to a magnetic recording technique, namely, to devices for recording discrete data. The purpose of the invention is to improve the fidelity of the recording of clock sync pulses by reducing undesirable combinations of regular repetition of individual characters in the recorded information. Figure 1 shows the structural functional diagram of the device; Fig. 2 is a circuit diagram of the device. The device contains a master oscillator. 1, pin 2 input signals, counter 3, first shift register 4, first static register 5, matrix memory block 6, magnetic recording device 7, second shifting register 8, second static register 9 delay elements 10 and 11, and trigger 12. Device works as follows. In the initial state, the trigger I / counter 3 and all registers are zeroed, and in block 6, in rows and columns, bit combinations of binary signals are placed. The memory cell is polled sequentially by bits, the number of which is set by counter 3. At the first cycle of operation, a binary symbol of digital information from the bus is recorded in the first digit of register 4 and counter 3 changes from the lowest to the first state, while 6 reads the first bit of the combination with the null addresses of the row and column. The output signal of block 6 is recorded in the first register bit 8 and through the rigger 12 is fed to the apparatus 7 of the magnetic recording. On subsequent cycles, the device operation process is similar to the first cycle. When counter 3 has passed all the states, returns to its original state, register 4 will contain the word from the input information, and register 8 will contain the combination corresponding to the zero addresses of the row and column of the matrix memory of block 6. From the shift registers 4 and 8 information it is overwritten into static registers 5 and 9, the state of which determines the row and column addresses of subsequent write cycles. If a word with a nonzero value is placed at the zero addresses of the row and column of block 6, then a sequence of nonzero type is fed to the device 7. Thus, when using the proposed device in the recorded digital information, regular repetition of symbols of one type is eliminated, which contributes to increasing the stability of the recorded combination with interference and parasitic effects inherent in the magnetic recording process.

Claims (1)

a device for magnetic recording of DIGITAL INFORMATION containing a master oscillator, the first output of which is connected to the counter input of the counter and to the control input of the first shift register, the information input of which is connected to the input bus, and the outputs are connected to the information inputs of the first static register, matrix memory block, inputs a survey of bits of which are connected to the outputs of the counter, the address inputs of the lines are connected to the outputs of the first static register, the control input of which is connected to the second output after generator, and the output of the matrix memory block is connected via a trigger to the input of the magnetic recording apparatus, characterized in that, in order to increase the fidelity of recording clock sync pulses by reducing the undesirable combinations of the regular repeatability of individual characters in the recorded information, it is equipped with a second shift and second static registers and two series-connected delay elements, while the input of the first delay element is connected to the first output of the master oscillator, the output of the first element This delay is connected to the control input of the matrix memory block, the output of the second delay element is connected to the control input of the second shift register, the information input of which is connected to the output of the matrix memory block, the outputs of the second shift register are connected to the information inputs of the second static register, the control input of the last is connected with the same input of the first static register, and the outputs of the second static register are connected to the address inputs of the columns of the matrix memory block. 119538'1