Multiplex communications – Special services – Conferencing
Reexamination Certificate
2007-04-20
2010-06-01
Ryman, Daniel J (Department: 2466)
Multiplex communications
Special services
Conferencing
C370S389000, C370S428000
Reexamination Certificate
active
07729299
ABSTRACT:
Elements in a video conferencing system may respond to error message(s) by aggregating any related error messages and responding based on a severity of the error indicated by the related error messages. A multipoint control unit (MCU) may identify an active stream from a first endpoint and forward the active stream to a second endpoint. The active stream may include a plurality of packets and transmit a video image by sending a frame followed by sub-frame modifications. The MCU may receive an error message from the second endpoint and determine the error's severity, which is related to an impact on an displayed image. Based on the severity, the MCU may identify and send a set of correction packets to the second endpoint. Also, a third endpoint may receive the active stream and respond to one or more error messages received from the second endpoint.
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Eisenberg Blane A.
Mackie David J.
Baker & Botts L.L.P.
Cisco Technology Inc.
Pham Tito
Ryman Daniel J
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