SU456374A1 - Binary information transfer method - Google Patents

Description

The alternations of a pair of pulses of a quasi-turn signal are reversed compared to the previous pair, and for transmitting a different value of the additional information symbol (i.e., in this example, "O", the order of alternation of a pair of pulses does not change.

On the transmitting side 1 of the digital communication system, a binary signal a carrying the main information is fed to a binary signal converter 2 into a sequence of current pulses of the quasi-troc signal b transmitting the basic information. Signal b is fed to read control device 3, as well as to converter 4 of signal b.

The binary signal, carrying additional information, is fed to the memory device 5. The reading from it occurs under the action of the pulses of the read signal 2, which are fed to the memory device from the reading control device 3.

Device 3 divides the sequence of current pulses of a quasi-Troich signal b into its input into pairs of current currents of opposite polarities successively in time and generates one pulse of signal at its output for each such pair. When this pulse arrives at memory 5 at the output of this the device, a signal d is generated, carrying information about the next binary symbol of the additional information to be transmitted.

In this example, the signal g is an impulse of positive polarity when the value of the next binary symbol of the additional information is "I and a pulse of negative polarity when the value of the next binary symbol of the binary information is" O.

The signal d is fed to the converter 4 of the signal b into a linear quasi-troar signal e, transmitting the basic and additional information.

Converter 4 is a device with two possible operating modes. In one of them, it generates a signal e, a repeating signal b, in the other - a signal e, which is an inverted signal b.

After each positive impulse signal g arrives at converter 4, it passes from one operating mode to another. The negative signal pulse d input to the transducer d does not change the mode.

On the receiving side 6, a linear, quasi-macroscopic signal e is fed to a signal converter e into a binary signal W, carrying the basic information, as well as an extractor 8 of a binary signal 3 carrying the additional information. The work of the selector 8 is reduced to counting in

a linear quasitroic signal e of current pulse pulses of opposite polarities and the generation for each such pulse of a single pulse of the signal h, and a positive signal of the signal of h and a pair of pulses are generated for a couple of pulses of the signal e with an alternating order opposite to the order of alternation of the previous pair with the order of alternation, coinciding with the order of alternation of the previous

a pair produces a negative signal pulse h.

For a linear quasitroichnogo signal e, generated when using the proposed method of transmission, the presence of

No more than two successively in time pulses of the same polarity and the absence of a linear signal in the spectrum of a linear component, i.e. a linear quasi-terrestrial signal e satisfies all the requirements imposed on a linear signal of digital communication systems using quasi-tertiary linear signals with alternating fields of pulses, and, therefore, can be transmitted using the same linear equipment.

Subject invention

A method of transmitting binary information with an intermediate record at the transmitting end, using quasi-tropic linear signals, characterized in that, in order to increase the effective information transfer rate, the sequence of current pulses of the quasi-tropic signal transmitting the basic information is divided into pairs and each pair of pulses is used to transmit one the binary symbol of the additional information, and when transmitting one value of the additional information symbol, the order of alternation of a pair of pulses kva itroichnogo signal is altered in the opposite compared to the preceding pair, and to transmit another value since additional information docking symbol

the alternation of a pair of pulses does not change.

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