Electrical audio signal processing systems and devices – Monitoring of sound
Reexamination Certificate
2006-10-10
2006-10-10
Pendleton, Brian T. (Department: 2615)
Electrical audio signal processing systems and devices
Monitoring of sound
C446S175000, C367S198000
Reexamination Certificate
active
07120257
ABSTRACT:
A control circuit for an amusement device includes a sound detector, a band-pass filter, a peak integrator and a controller. The sound detector is configured to detect audible sound signals. The band-pass filter is electrically coupled to the sound detector. The band-pass filter is configured to extract sound signals in a predetermined audible frequency range and to output a corresponding filtered signal. The peak integrator is electrically coupled to the band-pass filter. The peak integrator is configured to receive the filtered signal, to average peaks of the filtered signal and to output a trigger signal based on a predetermined range of the averaged filter signal. The controller is electrically coupled to the peak integrator. The controller is configured to receive the trigger signal and to provide a control output in response to the trigger signal.
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Akin Gump Strauss Hauer & Feld & LLP
Mattel Inc.
Pendleton Brian T.
LandOfFree
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