Headphone driver and methods for use therewith

Electrical audio signal processing systems and devices – Headphone circuits

Reexamination Certificate

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Reexamination Certificate

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07876911

ABSTRACT:
A headphone driver includes a driver module for generating a plurality of headphone driver signals including a filtered stereo sum signal.

REFERENCES:
patent: 3984885 (1976-10-01), Yoshimura et al.
patent: 5617477 (1997-04-01), Boyden
patent: 6711268 (2004-03-01), Colegrave et al.
patent: 6856046 (2005-02-01), Scarlett et al.
patent: 6950527 (2005-09-01), Chu
patent: 7450726 (2008-11-01), Goyal
patent: 7502478 (2009-03-01), King
patent: 2004/0091121 (2004-05-01), Morimoto
patent: 2007/0222522 (2007-09-01), Delano et al.

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