Electrical audio signal processing systems and devices – Audio transducer protection circuitry
Reexamination Certificate
2006-02-27
2010-12-07
Mei, Xu (Department: 2614)
Electrical audio signal processing systems and devices
Audio transducer protection circuitry
C381S077000, C381S124000
Reexamination Certificate
active
07848527
ABSTRACT:
A consumer electronic product (e.g., a portable media player ported to a media delivery accessory) is powered by a limited capacity DC power source (such as a battery or mini-fuel cell). The consumer electronic product limits the maximum allowable sound pressure level (SPL) that can be produced by the speakers. In one embodiment, the maximum allowable SPL is based upon an amount of stored energy available in the limited capacity DC power source.
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Dorogusker Jesse L.
Hammerstrom Jeffrey Allan
Krueger Scott
Michelet Robert
Novotney Donald J.
Apple Inc.
Beyer Law Group LLP
Mei Xu
LandOfFree
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