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US 8,559,611 B2Granted
Audio signal routing
AssigneePolycom, Inc.
InventorsKiril Ratmanski, Richard J. Kos, Erwin Goesnar, Eric David Elias, Venugopal Kalluri
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AssigneePolycom, Inc.
InventorsKiril Ratmanski, Richard J. Kos, Erwin Goesnar, Eric David Elias, Venugopal Kalluri
Estimating the term…
A communication system that includes multiple conferencing devices connected in a daisy-chain configuration is communicably connected to far-end conference participants. Multiple conferencing devices provide improved sound quality to the far-end participants by reducing aural artifacts resulting from reverberation and echo. The daisy-chain communication system also reduces the processing and transmission time of the near-end audio signal by processing and transmitting the audio signal in frequency domain. Each conferencing device in the daisy chain performs signal conditioning on its audio signal before transmitting it in the frequency domain to a mixer. The output signal of the mixer is converted back to the time domain before being transmitted to the far-end. The daisy-chain configuration also provides a distributed bridge to external communication devices that can be connected to each conferencing device.
A conferencing system for communicating audio information between a near-end location and a far-end conferencing device at a far-end location, the conferencing system comprising:
A conferencing device for use with other conferencing devices, the conferencing device comprising:
A conferencing device for use with other conferencing devices, the conferencing device comprising:
A method of operating a conferencing system for communicating audio information between a near-end location and a far-end conferencing device at a far-end location, the conferencing system including a primary conferencing device and at least one non-primary conferencing devices communicably coupled to the primary conferencing device, with one of the primary conferencing device and the at least one non-primary conferencing devices is communicably coupled to the far-end conferencing device the method comprising:
A method for operating a conferencing device which includes a microphone, an input-output port and a loudspeaker, the method comprising:
A method for operating a conferencing device which includes a microphone, at least one input/output port and a loudspeaker, the method comprising:
Dependencies are inferred from the claim text.