Television – Two-way video and voice communication – Conferencing
Reexamination Certificate
2006-08-01
2006-08-01
Ramakrishnaiah, Melur (Department: 2643)
Television
Two-way video and voice communication
Conferencing
C348S014080, C348S014120
Reexamination Certificate
active
07084898
ABSTRACT:
An audio mixer on a first device receives one or more incoming audio streams. Each of the one or more incoming audio streams has an associated timestamp. The audio mixer generates a mixed audio stream from the one or more incoming audio streams. The audio mixer determines differences in the time base of each of the one or more incoming audio streams and the time base for the mixed audio stream. The audio mixer generates mapping parameters associated with the determined differences and transforms the timestamp of each of the one or more incoming audio streams to a corresponding output timestamp associated with the mixed audio stream according to the mapping parameters. the mapping parameters are provided to a video mixer for similar processing and transformation such that the mixed audio stream is in synchronization with a mixed video stream.
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Firestone Scott S.
Friedrich Walter R.
Ismail Nermin M.
Lantz Keith A.
Sarkar Shantanu
Baker & Botts L.L.P.
Cisco Technology Inc.
Ramakrishnaiah Melur
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