Computer conferencing system with a transmission signal synchronization scheme
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 30, 2001
Grant Date -
N/A
app pub date -
Mar 11, 1998
filing date -
Mar 11, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A computer conferencing system is provided with a transmission signal synchronization scheme. An Audio signal frame has a synchronization (sync) signal. The formatted audio including the sync signal is transmitted, together with the video signal frame and data signal frame, to the remote conferencing system via a communications network, such as a PSTN. The conferencing system is provided with a synchronization signal generator coupled to the compressed signal output of the audio board by way of a mixer. Further, the system includes a multiplexer/demultiplexer that mutiplexes/demultiplexes compressed and formatted audio/video/data generated by the audio board, video board, and host processor, respectively, with the communication board for transmission to and reception from the remote conferencing system. A synchronization control unit is coupled to data input lines of the multiplexer/demultiplexer for enabling/disabling addition of the sync signal to the audio signal frame, and for selecting a sync signal source according to the priority set by a software module.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully