Electrical audio signal processing systems and devices – Binaural and stereophonic – Stereo speaker arrangement
Reexamination Certificate
2007-11-30
2011-10-25
Nguyen, Dao (Department: 2818)
Electrical audio signal processing systems and devices
Binaural and stereophonic
Stereo speaker arrangement
Reexamination Certificate
active
08045736
ABSTRACT:
The present invention is directed to providing a sound field reproduction system that can enhance the sound separation between the front and rear seats or left and right seats of a vehicle. The sound field reproduction system includes a control unit for creating a first sound signal and a second sound signal from one or a plurality of sources, a narrow-directional speaker mounted on the front seat side of the vehicle, a speaker mounted on the rear seat side of the vehicle, and a signal processing unit for driving the narrow-directional speaker based on the first sound signal that has been processed according to frequency range, and for driving the speaker based on the second sound signal.
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Maeda Masanobu
Shibata Kiyosei
Christie Parker & Hale LLP
Fujitsu Ten Limited
Nguyen Dao
Nguyen Tram H
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