Television – Two-way video and voice communication – Conferencing
Reexamination Certificate
2002-06-27
2010-12-14
Ramakrishnaiah, Melur (Department: 2614)
Television
Two-way video and voice communication
Conferencing
C348S014090, C348S014120
Reexamination Certificate
active
07852369
ABSTRACT:
An omni-directional camera (a 360 degree camera) is proposed with an integrated microphone array. The primary application for such a camera is videoconferencing and meeting recording, and the device is designed to be placed on a meeting room table. The microphone array is in a planar configuration, and the microphones are located as close to the desktop as possible to eliminate sound reflections from the table. The camera is connected to the microphone array base with a thin cylindrical rod, which is acoustically invisible to the microphone array for the frequency range [50-4000] Hz. This provides a direct path from the person talking to all of the microphones in the array, and can therefore be used for sound source localization (determining the location of the talker) and beam-forming (improving the sound quality of the talker by filtering only sound from a particular direction). The camera array is elevated from the table to provide a near frontal viewpoint of the meeting participants.
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Cutler Ross
Gupta Anoop
Rui Yong
Tashev Ivan
Lyon Katrina A.
Lyon & Harr LLP
Microsoft Corp.
Ramakrishnaiah Melur
LandOfFree
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