METHOD AND DEVICE FOR SIMULTANEOUS EXECUTION OF PRECISE DIVISION OF INSTANTANEOUS FREQUENCY AND PRECISE POWER CALCULATION FOR ACOUSTIC SIGNAL ENVELOPE Russian patent published in 2000 - IPC

Abstract RU 2152075 C1

FIELD: instruments, in particular, recording and playing acoustic signals. SUBSTANCE: method for processing of input signal involves its Hilbert transform, preliminary multiplication by absolute value of Hilbert signal transform, and dividing by Hilbert signal transform. This operation after scaling produces output signal. Device has phase shifter, multiplier, analog signal divider, units calculating absolute value and sign functions, and scaling amplifier. EFFECT: improved quality for transmission of wide-band acoustic signals through narrow-band channels. 2 cl, 1 dwg

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RU 2 152 075 C1

Authors

Uvarov V.K.

Dates

2000-06-27Published

1998-10-29Filed