SU951382A1 - Device for magnetic recording of binary code - Google Patents

Description

(5. +) DEVICE FOR MAGNETIC RECORDING OF BINARY CODE

The invention relates to magnetic recording, in particular to devices for magnetic recording of binary code. A device for magnetic recording of a binary code is known, which contains an input symbol character bus, connected to the input of the converter, the output of which is connected to the output bus f1}. The device has a relatively simple design, however, it is not possible to ensure a sufficiently high accuracy of the magnetic recording of the binary code. A device for magnetic recording of a binary code containing an input symbol symbol bus connected to the input of a gating pulse generator, an OR element connected by an output to the trigger input of which output is connected to the output bus, a delay element of half a period and an input symbol bus of zeros is known. allows to provide a relatively high accuracy of magnetic binary code recording. The disadvantage of this device is the low density magnetic recording binary code. The purpose of the invention is to increase the density of the magnetic recording of the binary code. The goal is achieved by the fact that a second character selector is inserted into the binary record magnetic code recorder, connected by the first input to the input symbol bus of units, the second input to the output of the gating pulse shaper, and the output to the first input of the OR element, and the second character selector zeros, connected by the first input to the input symbol bus of zeros and connected by the output through a delay element for half the clock period with the second input of the OR element. In this case, the output of the gating pulse shaper is connected to the second

input selector second characters of zeros.

One of the possible variants of the proposed device for magnetic recording of a binary code is shown on the display.

The device contains an input bus character symbols, connected to the input of the driver 2 gating pulses, the element OR 3 and the selector t of the second characters of the units. The OR element is connected to the output of the trigger 5, the output of which is connected to the output bus b. The selector 4 second characters of units is connected by the first input to the input bus 1 characters of units, the second input to the output of the driver 2 gating pulses, and the output to the first input of the element OR 3. The device also contains the selector 7 of the second characters of zeros connected by the first input to the input bus 8 and connected to the output through the element 9 of the delay for half the clock period with the second input element OR 3. The output of the gating gate generator is connected to the second input of the selector 7 of the second symbols of zeros,

In the proposed device, in the process of magnetic recording, the symbols of units and symbols of zeros are fed to the first inputs, respectively, of the selector 4 of the second unit symbols and the selector 7 of the second symbols of the zeros. The symbols of the units are also fed to the input of the mapper 2 gating pulses. From the output of the latter, gating pulses are applied to the second inputs of the selector i of the second characters of the units and the selector 7 of the second characters of the zeros. The second symbols of the units are fed to the element OR 3 directly, and the second symbols of the zeros are fed through the delay element 9 by half of the clock period. Each pulse coming from the output of the element OR 3, provides the trigger trigger 5. The signal coming from trigger 5 on

, output bus 6, provides a magnetic recording of the next symbol of a binary code unit at the boundary of the symbol interval, if the unit symbol is located in the next symbol interval, and in the middle of the symbol interval, if the zero symbol is located in the next symbol interval.

The invention makes it possible to significantly increase the density of a magnetic record of a binary code.

Claims (2)

1. Japanese Patent No. 51-25137, cl. 102 E 331, 07.29.76. 2. US Patent cl. ZbO-2 0, 07.12.76 (prototype);