Electrical audio signal processing systems and devices – Directive circuits for microphones
Reexamination Certificate
2007-02-27
2007-02-27
Pendleton, Brian T. (Department: 2615)
Electrical audio signal processing systems and devices
Directive circuits for microphones
C379S202010, C348S014070, C348S014080
Reexamination Certificate
active
09792489
ABSTRACT:
A system and method for audio telepresence. The system includes a user station and a telepresence unit. The telepresence unit includes a directional microphone for capturing sounds at the remote location, and means for converting the captured sounds into a stream of data to be communicated to the user station. The user station includes means for receiving the stream of data and a plurality of speakers for recreating the sounds of the remote location. The user station and the speakers are located within an anechoic chamber where sound reflections are substantially absorbed by anechoic linings of the chamber walls. Because of the substantial lack of sound reflection within the anechoic chamber, a user within the anechoic chamber will be able to experience an aural ambience that closely resembles the sounds captured at the remote location. The user station may include microphones for capturing the user's voice, and the telepresence unit may include speakers for projecting the user's voice at the remote location. Feedback suppression, audio direction steering, and head-coding techniques may also be used to enhance the user's sense of remote presence.
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Hewlett--Packard Development Company, L.P.
Pendleton Brian T.
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