COMPRESSION AND SPREAD OF DATA OF AUDIO SIGNAL Russian patent published in 2002 - IPC

FIELD: radio engineering. SUBSTANCE: data compression device incorporates terminal for input of audio signal, single-digit analog-to-digital converter for analog-to-digital conversion of audio signal securing generation of signal of bit sequence, loss-free coder for compression of data of signal of bit sequence without any loss and output terminal to feed signal of bit sequence with compressed data. There are also proposed recorder and transmitter incorporating data compression device as well as data spread device to enhance data of signal of bit sequence with compressed data fed by data compression device. Formula of invention also describes playback device and receiver incorporating data spread device. EFFECT: simplified design of data compression device and reduced cost of it. 30 cl, 12 dwg, 1 tbl