Adaptive signal weighting system

Details Adaptive signal weighting system Adaptive signal weighting system

1983-01-31

1985-09-03

Mullins, James B.

Amplifiers

Variable impedance for signal channel controlled by separate...

330285, 330126, H03G 320, H03F 368

Patent

active

045395268

ABSTRACT:
An adaptive signal weighting system is disclosed for use in transmitting an electrical information signal of a predetermined bandwidth along a signal path. The system can be used to encode or decode the signal. The system comprises filter means disposed in the signal path for varying the gain impressed on the portion of the information signal within a first select spectral region within the preselected bandwidth. The gain is varied in response to and as a function of a first control signal. Means are provided means for generating the first control signal in response to and in accordance with the signal energy of the information signal substantially within at least a part of the first select spectral region. The system also comprises gain control means disposed in the signal path and coupled to the filter means for varying the signal gain impressed on the information signal substantially throughout the predetermined bandwidth, the signal gain varying in response to and as a function of a second control signal; and means for generating the second control signal in response to and as a function of the signal energy of the information signal within at least one other select spectral region of the information signal.

REFERENCES:
patent: 4281295 (1981-07-01), Nishimura et al.
patent: 4455535 (1984-06-01), Sugawara

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