SU1327173A1 - Apparatus for magnetic record of information - Google Patents

Description

The invention relates to magnetic information recording devices.

The aim of the invention is to increase the recording density by eliminating redundant information.

The drawing shows a functional diagram of a device for magnetic recording of information.

The proposed device contains a generator of 1 pulses connected by an output to the input of a counter of 2 pulses connected by outputs to control inputs of a switch 3 connected by inputs to outputs of information sources 4 and an output through analog-digital converter 5 to one input of calculator 6 approximation error connected by other inputs the outputs of the counter 2 pulses and the outputs from the one-& n-1 inputs of the comparison unit 7 connected by other inputs to the outputs of the source of 8 standards and the output to one input of the element OR 9 o Element OR 9 is connected by an output to one of the inputs of information storage 10 connected by other inputs to the outputs of comparison unit 7, counter 2 i-gpulses and analog-digital converter 5

In addition, the device for magnetic recording of information contains the first and second selectors 11 and 12 of the code, trigger 13, element 14, and an additional counter 15 pulses, and 5 the first code selector 11 is connected to the input n. to the outputs of the counter 2 pulses and the output to the connected ones to one of the inputs of the pulse generator 1, one of the inputs of data storage 10, the other input of the element OR 9, the first input of the trigger 13 and the control input of the additional counter 15 pulses, including input and output between the output of the comparator unit 7 and the corresponding inputs of the magnetic storage device 10 and the output connected via the second code selector 12 to the interconnected one input of the element OR 9 and the second input of the trigger 13, while the element AND 14 including ene between the outputs of the OR gate 9 and the flip-flop 13 and one input of accumulator 10 information.

The proposed device works as follows.

The pulse generator 1 generates control signals for the counter.

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2 pulses, which forms a sequence of the number of sources 4 information. Using these signals, switch 3 connects alternately the outputs of information sources 4 to the inputs of analog-digital converter 5, the signal from the code of which goes to the calculator 6 approximation errors, which according to the selected algorithm analyzes the current approximation error, which codes arrive at block 7 from the source outputs 8 standards in the circuit with signals from the outputs of the calculator 6. Pulses 1 are counted by a pulse counter 15, if the output:: a pulse counter 15 pulses code 00, At the same time, at the output of the selector i 1 of the code a signal is transmitted that through the element OR 9 and the element 14 opened by the trigger 13, the registration of the address code, information code and marker changes the switching frequency B of information storage 10. With the same signal from the counter: a 15 pulses in the pulse generator 1 sets a lower switching frequency, after which the signal from the selector of the 11 pulses sets the pulse counter 15 to the zero state

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k confirms the single state of the flip-flop 13. In the second case, only one 1 is generated at the output of the comparison block 7. As a result, the code 01 5 the selector 12 of the code four is formed at the output of the pulse counter 15. the element OR 9 and the trigger element AND 14 register the address code and information code in the information accumulator 10, after which the signal from the output of the selector 12 pulses trigger 13 closes the element 14. When the selector 11 W 1 pulses is triggered, a marker is recorded changing the switching frequency in the information storage 10, the same signal from the pulse counter 15 in the pulse generator 1 does not change the switching frequency. After that, the signal from the selector 1 1 sets the counter 15 impulses to the zero state, and the trigger 13 is set to one state. In the third case, with the occurrence of three and more than 1, the code 10 is set at the output of the comparator unit 7, the output of the pulse counter 15 is set.

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Code 15 generates a code 01, by which the selector 12 generates a signal, by which the address code and information is recorded through AND 14, and then the same signal closes AND 14, the second 1, and sets the code 10, unchanged until the end of registration. The appearance of the following pulses does not change the state of the counter of 15 pulses. When the selector 11 is triggered, a switching frequency change marker is recorded in the information storage 10, the switching frequency in the pulse generator 1 is changed upwards. After that, by the same signal, the pulse counter 15 is set to one state.

Claims (1)

Invention Formula A device for magnetic information recording, containing a pulse generator connected by an output to an input of an impulse counter, is connected, by means of outputs to control inputs of a switch connected by inputs to outputs of information sources and output through an analog-to-digital converter to one input of an approximation error calculator, with: connected other inputs with pulse counter outputs and outputs Editor L.Povkhan Order 3404/49 Compiled by V. Dobrovolsky Tehred L. Oliynyk Proofreader T. Kolb Circulation 589 Subscription VNIIPI State Committee of the USSR for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Design, 4. 5 O} 5 0 five thirty 734 with one input of the comparison unit, connected by other inputs to the outputs of the source of standards and output to one input of the OR element, connected by the output to one of the inputs of the information storage, connected by other inputs to the outputs of the comparison unit, pulse counter and analog-digital converter, T is different in that, in order to increase the recording density by eliminating redundant information, the first and second code selectors, a trigger, an And element and an additional pulse counter are introduced into it, with the first selector The inputs are connected by inputs to the outputs of the pulse counter and the output to interconnected one of the inputs of the pulse generator, one of the inputs of the information accumulator, another input of the OR element, the first trigger input and the control input of the additional pulse counter switched on by the input and output between the output of the comparison unit and the corresponding inputs of the magnetic storage device and the code connected by the output through the second selector to the interconnected one input of the OR element and the second input of the trigger; chen between the outputs of the OR gate and flip-flop and a single-input information stores.