Method and system for amplifying auditory sounds

Details Method and system for amplifying auditory sounds Method and system for amplifying auditory sounds

2004-11-05

2010-10-26

Faulk, Devona E. (Department: 2614)

Electrical audio signal processing systems and devices

Monitoring of sound

Amplification control responsive to ambient sound

C381S056000, C381S098000, C381S103000, C381S122000, C381S091000

Reexamination Certificate

active

07822212

ABSTRACT:
This invention relates to a system for amplifying a sound in an auditory environment. The system comprises a microphone for transforming said sound to an electric sound signal; a band-pass filtering means connecting to said microphone and outputting a filtered sound signal; and an amplifier amplifying said filtered sound signal and outputting a filtered and amplified sound signal to a loudspeaker. The band-pass filtering means comprises a passive first filter having a first bandwidth and first gain, an active second filter having a second bandwidth and a second gain larger than said first gain, and an active third filter having a third bandwidth and a third gain larger than said second gain.

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