MULTIPLE-CHANNEL DEVICE FOR RECEPTION OF VOICE SIGNALS Russian patent published in 1999 - IPC

FIELD: telephone equipment. SUBSTANCE: device has generator of orthogonal signals, linear unit, paraphase unit, correlation units. Goal of invention is achieved by introduced signal selection unit, control signal generator, second paraphase unit, generation unit, error suppression unit, output unit, and generator of pseudorandom sequence. Number of generation units corresponds to number of channels. Number of error suppression unit corresponds to half of number of channels. EFFECT: use of encrypted confidential information from modulated orthogonal signals, which represent in communication channel sum of phase constituents of modulated signal. 1 dwg