Electrical audio signal processing systems and devices – One-way audio signal program distribution
Reexamination Certificate
2011-08-30
2011-08-30
Barrera, Ramon (Department: 2832)
Electrical audio signal processing systems and devices
One-way audio signal program distribution
C381S097000
Reexamination Certificate
active
08009838
ABSTRACT:
A speaker system that includes an audio signal-receiving interface, a modulating circuit, a phase-control circuit, and a number of speaker units. The audio signal-receiving interface is configured to receive an audio signal, and the modulating circuit is coupled with the audio signal-receiving interface. The modulating circuit is configured to modulate a low frequency component of the audio signal and to generate a modulated signal. The phase-control circuit is coupled with the modulating circuit and the audio signal-receiving interface. The phase-control circuit is configured to receive the modulated signal and a high-frequency component of the audio signal and to control a phase of the modulated signal, a phase of the high-frequency component of the audio signal, or both. The speaker units are coupled with the phase-control circuit and configured to generate sound waves based on signals supplied by the phase-control circuit.
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Chen Jia-Lun
Cheng Chih-Chiang
Ho Jen-Hsuan
Hsiao Wen-Hsin
Huang Ji-De
Barrera Ramon
Lowe Hauptman & Ham & Berner, LLP
National Taiwan University
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