Audio amplifiers

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11283418
APP PUB NO 20200382079A1
SERIAL NO

16955025

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An electronic device comprises a speaker protection module (36) arranged to receive an audio signal (22) and to use one or more parameters relating to a loudspeaker to produce a controlled audio signal (34). An amplifier (40) is arranged to amplify the controlled audio signal to produce an amplified audio signal (24, 26) which is passed to the loudspeaker. The amplitude of the controlled audio signal (34) is such that the amplified audio signal (24, 26) is less than or equal to an amplitude determined to be safe for the loudspeaker in view of the one or more parameters. An ultrasound generator (16) is arranged to generate an ultrasound signal (30) that is mixed (32) with the controlled audio signal (34) before the controlled audio signal (34) is passed to the amplifier (40). The ultrasound generator (16) is capable of producing said ultrasound signal at a plurality of frequencies.

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Patent Owner(s)

  • ELLIPTIC LABORATORIES AS

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Børstad, Thomas Kristoffersen Oslo, NO 2 1

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