Electrical audio signal processing systems and devices – Including frequency control – Having automatic equalizer circuit
Patent
1995-06-07
1996-04-16
Kuntz, Curtis
Electrical audio signal processing systems and devices
Including frequency control
Having automatic equalizer circuit
381108, 381 57, H03G 300
Patent
active
055090818
ABSTRACT:
The invention relates to a sound reproduction system comprising a source of a sound signal in electrical form, a first filter group for dividing the signal derived from the sound signal source into several sound signals occurring in different frequency bands and an adjustable gain amplifier for each frequency band for amplifying the sound signal occurring in said frequency band. To take into account the noise existing in the environment of the sound reproduction system in the adjustment of the system, the system further comprises means for generating an electrical signal proportional to the background noise existing in the environment and means for adjusting the gain of the amplifiers in response to said electrical signal proportional to the background noise.
REFERENCES:
patent: 3496481 (1967-02-01), Torick et al.
patent: 4061874 (1977-12-01), Fricke et al.
patent: 4610024 (1986-09-01), Schulhot
patent: 4628526 (1986-12-01), Germer
patent: 4630305 (1986-12-01), Borth et al.
patent: 4641361 (1987-02-01), Rosback
patent: 4852175 (1989-07-01), Kates
patent: 4868881 (1989-09-01), Zwicker et al.
patent: 5077799 (1991-12-01), Cotton
patent: 5081682 (1992-01-01), Kato et al.
patent: 5107539 (1992-04-01), Kato et al.
Kuntz Curtis
Lee Ping W.
Nokia Technology GmbH
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