Electrical audio signal processing systems and devices – Monitoring/measuring of audio devices – Loudspeaker operation
Reexamination Certificate
2006-05-30
2006-05-30
Grier, Laura A. (Department: 2644)
Electrical audio signal processing systems and devices
Monitoring/measuring of audio devices
Loudspeaker operation
C381S058000, C381S061000, C381S103000
Reexamination Certificate
active
07054448
ABSTRACT:
An automatic sound field correcting device applies signal processing onto audio signals of plural channels and outputs processed audio signals to corresponding plural speakers. The automatic sound field correcting device includes: a noise measuring unit for measuring environmental noise level; a signal level determining unit for determining a measurement signal level based on the environmental noise level; and a correcting unit for outputting a measurement signal having the determined measurement signal level to perform automatic sound field correction.
REFERENCES:
patent: 5771297 (1998-06-01), Richardson
patent: 5815580 (1998-09-01), Craven et al.
patent: 5953431 (1999-09-01), Yashima et al.
patent: 06-13292 (1994-02-01), None
Tsukada Kazuya
Yoshino Hajime
Grier Laura A.
Pioneer Corporation
Young & Thompson
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