Spectral noise compensation for telecommunication signal process

Details Spectral noise compensation for telecommunication signal process Spectral noise compensation for telecommunication signal process

1996-07-01

1998-02-24

Hsu, Alpus H.

Multiplex communications

Duplex

Transmit/receive interaction control

370290, 379409, H04B 320, H04M 908

Patent

active

057217300

ABSTRACT:
A telecommunication signal processor includes a noise compensation system for preventing undesirable spectral modulation of the noise component of a telecommunication signal subjected to a process wherein subband portions of the signal are variably attenuated. A noise component is injected into each attenuated error signal in order to compensate for attenuation of background noise incidental to the variable attenuation of the subband signals. The amplitude of the noise components are each determined independently on the basis of an estimated noise content of the original subband signals and in accordance with the applied attenuation within each subband. The attenuated and noise-compensated subband signals are combined by a synthesis filter to provide a send-output signal.

REFERENCES:
patent: 4644108 (1987-02-01), Crouse et al.
patent: 4956838 (1990-09-01), Gilloire et al.
patent: 5001701 (1991-03-01), Gay
patent: 5136577 (1992-08-01), Amano et al.
patent: 5157653 (1992-10-01), Genter
patent: 5272695 (1993-12-01), Makino et al.
patent: 5274705 (1993-12-01), Younce et al.
patent: 5283784 (1994-02-01), Genter
patent: 5285165 (1994-02-01), Renfors et al.
patent: 5289539 (1994-02-01), Maruyama
patent: 5305307 (1994-04-01), Chu
patent: 5315585 (1994-05-01), Iizuka et al.
patent: 5365583 (1994-11-01), Huang et al.
patent: 5477534 (1995-12-01), Kusano
patent: 5477535 (1995-12-01), Lahdemaki
patent: 5561668 (1996-10-01), Genter

Affiliated with

Also associated with

Rating

Spectral noise compensation for telecommunication signal process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Spectral noise compensation for telecommunication signal process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectral noise compensation for telecommunication signal process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1879338