Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Plural or compound reproducers
Reexamination Certificate
2006-03-01
2009-11-03
Le, Huyen D (Department: 2614)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Plural or compound reproducers
C381S374000, C381S375000
Reexamination Certificate
active
07613315
ABSTRACT:
The headset according to the invention has an elongate cabinet adapted for placement behind the ear lobe, a speaker enclosure hinged to the cabinet part and extending downwards from the upper portion of the cabinet part and a microphone boom extending from the lover tip of the cabinet part. The microphone boom is fastened to the cabinet part in rotatable fashion, and the speaker enclosure has sound exit openings pointing in a direction toward the ear and away from the ear. According to the invention the speaker enclosure has a circumferentially extending band which is detachable from the speaker enclosure.
REFERENCES:
patent: 5450496 (1995-09-01), Burris et al.
patent: 5761298 (1998-06-01), Davis et al.
patent: 6097827 (2000-08-01), Yang
patent: 6154539 (2000-11-01), Pitel
patent: 7391878 (2008-06-01), Liao
patent: 2004/0055811 (2004-03-01), Shih
patent: 1278394 (2003-01-01), None
patent: 2347042 (2000-08-01), None
Vaerum Peter Vestergaard
Wernblad Sivert
Ørsted Jeppe Marckmann
Dykema Gossett PLLC
Le Huyen D
Sennheiser Communications A/S
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