Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Plural or compound reproducers
Reexamination Certificate
2011-07-19
2011-07-19
Barrera, Ramon M (Department: 2832)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Plural or compound reproducers
C381S182000, C381S380000, C381S381000
Reexamination Certificate
active
07983437
ABSTRACT:
An apparatus is provided including a first speaker which emits sound, a second speaker which emits sound, and a device which connects the first speaker and the second speaker. The device may connect the first speaker or front speaker, and the second speaker or rear speaker, so that the device can be attached to an ear of a person so that the first speaker lies near the middle of the ear while the second speaker lies at a location between an ear lobe of the ear and a mastoid of a skull of the person.
REFERENCES:
patent: 3869584 (1975-03-01), Wilde
patent: 3900707 (1975-08-01), Hanson
patent: 3984885 (1976-10-01), Yoshimura et al.
patent: 4821323 (1989-04-01), Papiernik
patent: 4972468 (1990-11-01), Murase et al.
patent: 5684879 (1997-11-01), Verdick
patent: D395653 (1998-06-01), Read et al.
patent: 5787166 (1998-07-01), Ullman
patent: D420007 (2000-02-01), Marchall et al.
patent: 6356644 (2002-03-01), Pollak
patent: 6374126 (2002-04-01), MacDonald et al.
patent: D464951 (2002-10-01), Skulley et al.
patent: 6483925 (2002-11-01), Shen et al.
patent: 6603863 (2003-08-01), Nagayoshi
patent: 6944309 (2005-09-01), Terai et al.
patent: D605172 (2009-12-01), Seade
patent: 2004/0218775 (2004-11-01), Huang
patent: 2005/0244020 (2005-11-01), Nakajima
patent: 2007/0177748 (2007-08-01), Yang
patent: 2007/0258613 (2007-11-01), Wright
Hui Lap Shun
Wong Hammond
Barrera Ramon M
Tencza Jr. Walter J.
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