DIGITAL DEVICE FOR GENERATING SPECTRALLY EFFICIENT SIGNALS Russian patent published in 2013 - IPC H04L27/00 

FIELD: radio engineering, communication.

SUBSTANCE: digital device for generating spectrally efficient signals has an analogue-to-digital converter, the control input of which is connected to the output of a clock unit, a first multiplexer, a parallel register, an adder and a first control unit, a digital-to-analogue converter, two multiplexers, two serial-parallel multi-bit registers, second and third control units, a feedback control unit and a low-pass filter. Multi-bit signal outputs of the first multiplexer are connected to signal inputs of the first serial-parallel multi-bit register, having groups of multi-bit outputs. The register is connected to signal inputs of the second multiplexer, the control inputs of which are connected to outputs of the first control unit, and the outputs are connected to the first group of inputs of the adder, the outputs of which are connected to inputs of the parallel register. The clock unit is connected to the first serial-parallel multi-bit register, the first control unit, the parallel register, the digital-to-analogue converter and the input of the feedback control unit. The first output of the feedback control unit is connected to the control input of the parallel register, its second output is connected to the control input of the second serial-parallel multi-bit register, the third and fourth outputs are connected to inputs of the second and third control units, respectively. Outputs of the third control unit are connected to control inputs of the first multiplexer, the first signal inputs of which are connected to outputs of the analogue-to-digital converter, and the second signal inputs are connected to outputs of the third multiplexer, the groups of multi-bit signal inputs of which are connected to multi-bit outputs of the second serial-parallel multi-bit register. Inputs of the register are simultaneously connected to outputs of the parallel register, the second group of inputs of the adder and the inputs of the digital-to-analogue converter, and the output is connected to the input of the low-pass filter, the output of which is the output of the digital device for generating spectrally efficient signals.

EFFECT: high-speed operation when generating spectrally efficient signals, high security of transmitted information.

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