Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Housed microphone
Reexamination Certificate
2005-06-20
2010-02-09
Ensey, Brian (Department: 2614)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Housed microphone
C381S356000
Reexamination Certificate
active
07660428
ABSTRACT:
An overhead microphone assembly using multiple unidirectional microphone elements. The microphone assembly is installed overhead, generally above all the desired sound sources and below the undesired sound sources. The signals from these multiple microphone elements are fed into a microphone steering processor which can mix and gate the signals to ensure the best signal
oise ratio. The steering processor may also track the sound source dynamically when such tracking (source locating) is desired. The resulting audio signal from the steering processor may be further processed, such as echo canceling, noise reduction and automatic gain control.
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European Search Report dated Nov. 13, 2007.
“Polycom® Ceiling Microphone Array—Extraordinary room coverage with superior audio pickup;” 2 Page Brochure; © 2005 Polycom, Inc.
“SCM-2 Implant Microphone;” Sound Control Technologies; 2 Page Brochure; © 2000 Sound Control Technologies, Inc.
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Chu Peter
Nimri Alain
Rodman Jeffrey
Schaefer Stephen
Sexton Martin G.
Ensey Brian
Joshi Sunita
Polycom, Inc.
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