Electrical audio signal processing systems and devices – Monitoring/measuring of audio devices – Loudspeaker operation
Reexamination Certificate
2011-04-26
2011-04-26
Faulk, Devona E (Department: 2614)
Electrical audio signal processing systems and devices
Monitoring/measuring of audio devices
Loudspeaker operation
C381S300000, C381S303000, C381S058000, C381S105000
Reexamination Certificate
active
07933418
ABSTRACT:
A position of a speaker is detected two-dimensionally or three-dimensionally, and a sound field is corrected. A sound reproducing apparatus includes a measuring signal generating portion for generating a first measuring signal, a transmission portion for transmitting a second measuring signal as soon as the first measuring signal is generated, sensors disposed in a listening position and for measuring a time difference between a time instant when the second measuring signal was received and a time instant when a measuring sound wave radiated from a to-be-detected speaker in accordance with the first measuring signal was received, and a position calculating portion for calculating a distance, as to each ofnsensors, between each of thensensors and the to-be-detected speaker based on the measured time difference, and calculating the position of the to-be-detected speaker based on distances among thensensors and the calculated distance.
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Faulk Devona E
Paul Disler
Rossi Kimms & McDowell LLP
Yamaha Corporation
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