Assignee
VTEL CORP
US24 patents
Top patents by PatentIndex Score
US5933597AAug 3, 1999
Method and system for sharing objects between local and remote terminals
VTEL CORP132 citations98
US5991277ANov 23, 1999
Primary transmission site switching in a multipoint videoconference environment based on human voice
VTEL CORP129 citations96
US5872922AFeb 16, 1999
Method and apparatus for a video conference user interface
VTEL CORP441 citations96
US5657246AAug 12, 1997
Method and apparatus for a video conference user interface
VTEL CORP276 citations96
US6181784B1Jan 30, 2001
Computer controlled video multiplexer for video conferencing and message systems
VTEL CORP84 citations95
US5959667ASep 28, 1999
Voice activated camera preset selection system and method of operation
VTEL CORP106 citations95
US6469732B1Oct 22, 2002
Acoustic source location using a microphone array
VTEL CORP366 citations94
US6618073B1Sep 9, 2003
Apparatus and method for avoiding invalid camera positioning in a video conference
VTEL CORP72 citations93
US6476873B1Nov 5, 2002
Enhancement of a selectable region of video
VTEL CORP39 citations93
US6285746B1Sep 4, 2001
Computer controlled video system allowing playback during recording
VTEL CORP76 citations93
US6178205B1Jan 23, 2001
Video postfiltering with motion-compensated temporal filtering and/or spatial-adaptive filtering
VTEL CORP345 citations92
US5768263AJun 16, 1998
Method for talk/listen determination and multipoint conferencing system using such method
VTEL CORP60 citations92
US6160586ADec 12, 2000
Digital video processing using a dynamically varying number of video fields
VTEL CORP34 citations91
US5990931ANov 23, 1999
Automatic display update of still frame images for videoconferencing
VTEL CORP73 citations91
US6650701B1Nov 18, 2003
Apparatus and method for controlling an acoustic echo canceler
VTEL CORP42 citations90
US5594725AJan 14, 1997
Process and system for video rate control in a multipoint video conference
VTEL CORP31 citations89
US6025870AFeb 15, 2000
Automatic switching of videoconference focus
VTEL CORP114 citations88
US6285405B1Sep 4, 2001
System and method for synchronizing data signals
VTEL CORP80 citations87
US6192342B1Feb 20, 2001
Automated camera aiming for identified talkers
VTEL CORP71 citations86
US5825754AOct 20, 1998
Filter and process for reducing noise in audio signals
VTEL CORP14 citations72
USD442155SMay 15, 2001
Video teleconferencing center with full screen display
VTEL CORP14 citations71
USD440545SApr 17, 2001
Video teleconferencing center
VTEL CORP10 citations71
USD425052SMay 16, 2000
Video teleconferencing device with full screen display
VTEL CORP2 citations51
USD427186SJun 27, 2000
Electronics enclosure
VTEL CORP1 citations40