TRANSMISSION SYSTEM, TERMINAL UNIT, CODER, DECODER, AND ADAPTIVE FILTER Russian patent published in 1999 - IPC

FIELD: electronic engineering. SUBSTANCE: transmission system has signal coder, transmitter, receiver, and decoder. The latter is provided with adaptive prediction filter used to encode voice or sound signals in case their bit transmission speed reduces. Factors for adaptive prediction filter are determined by recursive way according to Levinson-Derbin recursion using fixed-point arithmetic. EFFECT: improved precision of calculations when coding in transmission system without increasing amount of calculations. 11 cl