SU1224823A1 - Device for magnetic recording of digital information - Google Patents

Abstract

This invention relates to the field of magnetic recording. The purpose of the invention is to increase the reliability of magnetic recording of digital information. The device contains blocks 1 and 2 of memory, node 3 of magnetic recording, triggers 4 and 6, elements AND 5, 7, 8, 9, 10 and 11 elements OR 12, 13, 14, 15 and 16, element EXCLUSIVE OR 17, register 18, source 19 periodic signal

Description

sync, information and control input buses 21, 20 and 22, block 23 specifying zone lengths, selector 24 words, counters 25, 26 and 27, memory block 28, multiplexer 29 and the element OR NOT 30, B again a block 23 is set for setting the zone length, which is executed as triggers 33, 34 and 35, AND 36 and 37 elements, counter 38, register 39, memory block 40, timer 41, OR 42 element, when writing to memory block 1 the amount of information corresponding

This invention relates to magnetic recording, in particular to devices for magnetic recording of digital information.

The aim of the invention is to increase the reliability of the magnetic recording of digital information,

The drawing shows the device

for magnetic recording of digital information.

The device contains the first 1 and second 2 memory blocks, outputs that are connected to the magnetic recording unit 3, the first trigger 4 connected by the first input to the output of the first element And 5, the second trigger 6 connected by the first input to the output of the second element And 7, the third 8, fourth 9, fifth 10 and sixth 11 elements AND, first 12, second 13, third 14, fourth 15 and fifth 16 elements OR, element EXCLUSIVE OR 17, register 18, source 19 of periodic signals, information 20, synchronizer 21 and control 22 input buses, block 23 for specifying the zone length, selek torus 24 words, first 25, second 26 and third 27 counters, additional memory block 28, multiplexer 29 and W-NE 30 element, Unit 23 for setting the zone length is connected to the first inputs of the first 12 and second 13 IPI elements and the second output to the first input of the third element And 8, connected by the second input to the synchronizing input bus 21. The selector 24 words connected by the output to the first

the previously defined zone length, the counter 25 generates an overflow signal fed to the multiplexer 29. At the same time, the block 28 generates a pulse that, through the IL 11 element, records the zone length from the register 39 to the counter 25. If the memory block 2 is free into it after the flip through the element AND 5 of the trigger 4, the information is recorded using the elements OR 13 and 13, the counter 26, the trigger 6 and the elements 17 and 11. 1 3.p about files, 1 ill.

the input of the fourth element I 9, and the input to the information input bus 20 connected to the first inputs of the first 1 and second 2 memory blocks of 5 tees. The first counter 25 is connected by the first output terminal and the first and second inputs, respectively, to the second input of the first memory block 1 and to the outputs of the first 12 and third 14 elements

10 OR. The second counter 26 is connected to the first output and the first and second inputs, respectively, with the second input of the second memory block 2 and to the outputs of the second 13 and fourth 15 elements

15 OR. The output of the fourth element And 9 is connected to the first input of the third counter 27, the output of which is connected to the input of the element SHIII-HE 30. Additional memory unit 28 is connected

20 by the first input to the control input bus 22, connected to register 18 and connected. non-outputs with third inputs of the first 1 and second 2 memory blocks, with second inputs of the first 12 and second 13

25 elements OR and the fourth element And 9 and with the first inputs of the third 14 and fourth 15 elements OR. The second inputs of the third 14 and fourth 15 elements OR are connected to the outputs of respectively the fifth 10 and sixth 11 elements AND connected by the first inputs to the first output of the source 19 periodic signals connected by the second output to the input of the magnetic recording unit 3. The multiplexer 29 is connected to the first and second control inputs, respectively.

thirty

35

to the output of the third element And 8 and to the output of the register and is connected by information inputs with the outputs of the first

4 and the second 6 triggers connected respectively to the first inputs of the first 5 and second 7 elements And,

to the second inputs of that 10 and sixth 11 elements AND, to the fourth inputs of the first 1 and second 2 memory blocks and to the first and second inputs of the fifth element OR 16, the output of which is connected to another input of the magnetic recording node 3 and to the input of the source 19 periodic signals. The input and the third output of the zone length setting unit 23 are connected respectively to the output of the OR-NOT 30 element and to the second input of the third counter 27. The fourth output of the zone length setting unit 23 is connected to the input of the display unit 31 and to the third inputs of the first 25 and second 26 counters. The second outputs of the first 25 and second 26 meters are connected to the second inputs of the first, respectively.

5 and the second 6 elements And are connected to other informatdonnye inputs of the multiplexer 29, The output of the multiplexer 29 is connected to the first input of the EXCLUSIVE OR H 7 element connected by the output to the second input of the register 18, which is equipped with a bus 32 controlling the command connected to its third input. The output of register 18 is connected to an additional memory block 28 connected

to the second input of the item EXCLUSIVE OR 17,

The zone length setting unit 23 can be executed as the third 33, fourth 34 and fifth 35 triggers of the seventh 36 and eighth 37 elements AND, the fourth counter 38, additional register 39, the second additional memory block 40, timer 41 and the sixth element OR 42 The first output of the zone length setting unit 23 is connected to the output of the operating element OR 42, connected to the first input of the additional register 39 and to the first input of the third trigger 33, equipped with a start bus 43, connected to its second input. The output of the third trigger 33 is connected to the first input of the fourth trigger 34 and to the first input of the seventh element And 36, connected by a second input to the output of the timer 41 and

15

20

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connected to the output of the second input

the fourth trigger 34 and with the input of the fifth trigger 35, the output of the fifth trigger 35 is connected to the second output of the zone length setting unit 23 and to the third input of the fourth trigger 34 connected by the output to the first input of the eighth element I 37 equipped with a 44 clock bus connected to his second, Q rum entrance. The output of the eighth element I 37 is connected to the third output of the block 23 specifying the zone length and to the input of the fourth counter 38 connected by the output to the first input of the sixth element OR 42 and to the input of the second additional memory block 40, the output of which is connected to the second input of the additional register 39 The output of the additional register 39 is connected to the fourth output of the block 23 for specifying the zone length connected by the input to the second input of the sixth element OR 42,

Magnetic recording device

25 digital information works as follows.

The signal received on start bus 43 transfers the third trigger 33, which opens the seventh AND 36 element for the first signal of timer 41. The first signal of timer 41 flips the fifth trigger 35, which allows synchro pulses to pass from the synchronizing input bus 21 through the third element And 8 to multiplex 35 sor 29, which leads to the arrival of a permitting signal from an additional memory block 28 to the fourth element 9, wherein the identifying words allocated by the selector 24 words

 from the information flow coming through the information input bus 20, passes through the fourth element AND 9 to the third counter 27, the third counter 27 counts the number of identifying words and, consequently, the number of word packets in the information flow.

The second signal of the timer 41 causes the fifth trigger 35 to set the fourth trigger 34 to a state in which the signal received on the 44-clock bus passes through the eighth And 37 element to the third 27 and fourth 38 counters. When the third counter 27 reaches the zero state, which is decrypted by the element OR-NOT 30, on the leading edge of the pulse of the sixth element OR 42

thirty

$ 1

The third flip-flop 33 is reset and the zone length written to the additional register 39 is read from the second additional memory AO block at the address generated by the fourth counter 38. At the trailing edge of the sixth element OR 42, the length of the zone is fixed in the first 25 and second 26 counters and its display unit 31 display.

When a signal arrives at the control, the input bus 22 multiplexer 29 for each clock pulse passing through the third element AND 8 records the word in the first memory block 1 and generates a pulse arriving through the third element OR 14 at the first counter 25, which leads to the subtraction of one unit. At the same time, the multiplexer 29 polls the state of one of its information inputs at the address of the executed microcommand recorded by the signal received from the bus 32 of the control command to the register 18, which it acts through the element TAKING EXT. OR 17. When writing to the first unit 1 the memory of the amount of information corresponding to the previously defined zone length, the first counter 25 generates an overflow signal sent to the multiplexer 29. At the same time, the additional memory block 28 generates a KOTopbtfi pulse through the first element OR 11 both records the length of the zone from the additional register 39 to the first counter 25. If the second memory block 2 is free, then after it is transferred through the first AND 5 element of the first trigger 4, information is recorded in the same way as in the first block 1 memory, but using the second 13 and fourth 15 elements OR, the second counter 26, the second trigger 6 and the second element And 7.

The first trigger 4, after it has been swapped, allows information to flow from the outputs of the first memory block 1 to the magnetic recording node 3, and through item 5, OR 16 triggers a magnetic tape in it and excites the source 19 of periodic signals. The source 19 of periodic signals provides in the node 3 magnetic recording recording information

tions coming from the outputs of the first

memory unit 1, and acts through the fifth element And 10 on the first counter 25 forming the reading address. After counting the steps from the first block 1 of the memory of the information array corresponding to the zone length, the first counter 25 generates an overflow signal providing through the first element

JQ AND 5 reset the first trigger 4. The first trigger 4 prohibits the flow of information from the outputs of the first memory block 1, and after the fifth element OR 16 stops the excitation of the source

with 19 periodic signals, which stops the movement of the magnetic tape in the node 3 magnetic recording. After recording in the second block 2 of the memory, the amount of information corresponding to the length

2Q zones, the same operations are performed as after recording the same amount of information in the first memory block 1, but using the second counter 26, the second trigger 6, the second 13 and

25 fourth 15 elements OR and the second 7 and sixth 11 elements I.

F. formula

1, A device for magnetic recording of digital information containing the first and second memory blocks, the outputs of which are connected to the magnetic recording unit, the first trigger connected by the first input to the output of the first

AND element, second trigger, connected by the first input to the output of the second element AND, OR elements, IS RING SHOCK OR, register, source of Periodic signals and information, synchronizing control input buses, characterized in that, in order to increase the reliability of magnetic digital information recordings; a block for setting the zone length is inserted in it;

the first 1 inputs of the first and second OR elements and the second output connected to the first input of the third AND element connected by the second input to

the synchronization input bus, the word selector connected by the output to the first input of the fourth element I and the connected input to the information input bus connected to the first inputs of the first and second memory blocks, the first counter connected by the first output and the first and second inputs respectively to the second input7

the house of the first memory block and with the outputs of the first and third elements OR the second counter connected by the first output and the first and second inputs respectively to the second input of the second memory block and to the outputs of the second and fourth elements OR the third counter connected to the first input output of the fourth element I, an additional memory block connected by the first input to the control input bus, connected to the register and connected to the outputs of the third inputs of the first and second memory blocks, with the second inputs of the first and second the OR elements and the fourth element And with the first inputs of the third and fourth elements OR, connected by the second inputs to the outputs of the fifth and sixth elements AND, the first inputs of which are connected to the first output of the source of periodic signals connected to the input of the magnetic recording node by the second output, multiplexer connected by the first and second control inputs, respectively, to the output of the third element I and to the output of the register and connected by information inputs to the outputs of the first and second triggers, according to connected, respectively, to the first inputs of the first and second elements AND, to the second inputs of the fifth and sixth elements AND, to the fourth inputs of the first and second memory blocks and to the first and second inputs of the fifth OR element connected by an output to another input of the magnetic recording unit and with. input source of periodic signals, and the element OR-NOT, and the input and the third output of the zone length setting block are connected respectively to the output of the SH-NOT element and to the second input of the third counter connected by the output to the input of the OR-NB element, the fourth output of the zone length setting block connected to the third inputs of the first and second ticks, the second outputs of which are connected to the second inputs of the first and second elements, respectively, And

VNIIPI Order 1954/49 Circulation 543 Subscription Branch PPP Patent, Uzhgorod, ul. Project, 4

2D823

connected to other information inputs of a multiplexer connected by the output to the first input of the EXCLUSIVE OR element, whose output is connected to the second input of the register equipped with a bus that controls the command connected to its third input and connected to the output of an additional memory block that is connected to 10 keys to the second input of the item EXCLUSIVE OR.

2. The device POP.1, characterized in that the block for 15 Dani zone length is made in the form

the third, fourth, and fifth triggers, the seventh and eighth And elements, the fourth counter, the additional register, the second additional memory block, the timer, and the sixth OR element, the first output of the zone length setting block connected to the sixth element OR with the first entrance

25 tel register and with the first input of the third trigger, equipped with a start-up bus connected to its second input, and connected with the output to the first input of the fourth trigger and to

30 to the first input of the seventh And element, which is connected by the second input to the timer output and connected by the output to the second input of the fourth trigger and to the input of the fifth trigger, connected by an output to the second output of the unit 1 of the zone length and to the third input of the fourth trigger, the output of which is connected to the first input of the eighth element And, equipped with a bus bars,

40 connected to its second input, and connected to the third input of the zone length setting unit and to the fourth counter input, output. which is connected to the first input

5 of the sixth OR element and to the input of the second additional memory block,

connected to the output of the second

the input of the additional register, the output of which is connected to the fourth

Q output of the block specifying the length of the zone connected by the input to the second input of the sixth element OR.

Claims (2)

Claim 1. A device for magnetic recording of digital information containing the first and second memory blocks, the outputs of which are connected to the magnetic recording unit, the first trigger connected by the first input to the output of the first AND element, the second trigger connected by the first input to the output of the second AND element, OR elements , an EXCLUSIVE OR element, a register, a source of periodic signals and an information synchronizing ^ control input bus, characterized in that, in order to increase the reliability of magnetic recording of digital information, a zone length setting lock connected by the first output to the first inputs of the first and second OR elements and connected by the second output to the first input of the third AND element connected by the second input to the synchronizing input bus, a word selector connected by the output to the first input of the fourth AND element and connected by the input to information input bus connected to the first inputs of the first and second memory blocks, the first counter connected to the first output and the first and second inputs, respectively, with the second input 7 1224823 ⁸ house of the first memory block and with inputs of the first and third elements OR, a second counter connected to the second input of the second and second inputs, respectively, with the second input of the second 5 memory block and with the outputs of the second and fourth elements OR, the third counter connected the first input to the output of the fourth element And, an additional memory block, connected to the first input to the control input bus, connected to the register and connected to the outputs of the third inputs of the first and second memory blocks, with the second inputs of the first 15 and the second OR element and the fourth AND element and with the first inputs of the third and fourth OR elements connected by the second inputs to the outputs of the fifth 20 and the sixth AND elements, respectively, the first inputs of which are connected to the first output of the periodic signal source connected by the second output to the input of the magnetic recording unit , a multi-25 plexor connected by the first and second control inputs respectively to the output of the third AND element and to the output of the register and connected by information inputs to the outputs of the first and second rigger connected respectively to the first inputs of the first and second members and to second inputs of the fifth and sixth AND gates, to the inputs of the fourth per- ₃₅ first- and second-memory blocks and to first and second inputs of a fifth OR gate, connected to the output to the other input node of the magnetic recording and with the input of the source of periodic signals, and the OR-HE element, the input and the third output of the zone length setting unit being connected respectively to the output of the OR-HE element and to the second input of the third counter 45 connected by the output to the input of the OR-HE element, fourth output block length reference zone is connected to the third inputs of the first and second counters, the second outputs kotoryh.soedi- ₅₀ yen to the second inputs of the first and second AND gates and connected to other information inputs of the multiplexer output coupled to the first input of the EXCLUSIVE-OR output which is connected to the second input of the register, equipped with a control command bus connected to its third input, and connected by the output to an additional memory unit connected to the second input of the AND element INCLUDING OR. 2. Device pop. 1, characterized in that the unit for setting the length of the zone is made in the form of a third, fourth and fifth triggers, seventh and eighth elements AND, fourth counter, additional register, second additional memory unit, timer and sixth element OR, the first the output of the zone length setting unit is connected to the output of the sixth OR element, connected to the first input of the additional register and to the first input of the third trigger, equipped with a start bus connected to its second input and connected to the output of the first mu input of the fourth trigger and to the first input of the seventh element And, which is connected by the second input to the output of the timer and connected by the output to the second input of the fourth trigger and to the input of the fifth trigger, connected by the output to the second output of the block for setting the zone length and to the third input of the fourth trigger, the output of which is connected to the first input of the eighth element And, equipped with a clock bus connected to its second input, and connected by the output to the third input of the zone length setting unit and to the input of the fourth counter, output. which is connected to the first input of the sixth OR element and to the input of the second additional memory block connected by the output to the second input of the additional register, the output of which is connected to the fourth output of the unit for setting the length of the zone connected to the second input of the sixth OR element. VNIIIPI Order 1954/49 Circulation 543 Subscription Branch of PPP Patent, Uzhhorod, st. Project, 4