Patent
PC-based conferencing system
Taymoor Arshi,Peter Tung,Ben Vrvilo,Rune A. Skarbo,Mike Gutmann,Mojtaba Mirashrafi +5 more
- 24 Nov 1993
116
TL;DR: In this article, a video and audio subsystems reside partially on the host processor and partially on a video/communication board, respectively, and the video subsystem generates and passes local compressed video signals corresponding to local analog video signals to the communications subsystem.
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Abstract: A video subsystem resides partially on a host processor and partially on a video board. Audio and communications subsystems reside partially on the host processor and partially on a audio/communications board. The video subsystem generates and passes local compressed video signals corresponding to local analog video signals to the communications subsystem. The audio subsystem receives and generates local compressed audio signals corresponding to local analog audio signals to the communications subsystem. The communications subsystem transmits the local compressed video and audio signals over a communications link to a remote computer system. The communications subsystem also receives remote compressed video and audio signals over the communications link from the remote computer system, and passes the remote compressed video and audio signals to the video and audio subsystems, respectively. The video subsystem generates remote analog video signals corresponding to the remote compressed video signals for local playback. The audio subsystem generates remote analog audio signals corresponding to the remote compressed audio signals for local playback.
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Citations
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Production of a video stream with synchronized annotations over a computer network
Audi Purnaveja,Navin Chaddha,Srinivas Prasad Vellanki,David del Val,Anoop Gupta,Edward Yan-bing Wang +5 more
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TL;DR: In this article, the authors present a synchronization script for annotated multimedia streams for servers and client computers coupled to each other by a diverse computer network which includes local area networks and/or wide area networks (WANs) such as the intermet.
429
Patent
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Lester F. Ludwig,J. Chris Lauwers,Keith A. Lantz,Gerald J. Burnett,Emmett R. Burns +4 more
- 16 Mar 1994
TL;DR: In this article, the authors propose a collaboration system that integrates separate real-time and asynchronous networks for audio and video, and the latter for control signals and textual, graphical and other data in a manner which closely approximates the experience of face-to-face collaboration.
387
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Method for real-time communication between plural users
Lester F. Ludwig,J. Chris Lauwers,Keith A. Lantz,Gerald J. Burnett,Emmett R. Burns +4 more
- 26 Nov 2003
TL;DR: In this paper, the authors proposed a real-time communication between a plurality of users each with respective communication devices having associated displays, the method comprising the steps of providing each of the plurality of user with collaboration initiation software at their communication devices and allowing at least first and second users to connect to at least one communication network by logging in at their respective communication device.
306
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System and method for live interactive distance learning
Cosmo T. DeNicola,Mark E. Handzlik,John D. Kelliher,William M. Fantini,Gary Weber +4 more
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TL;DR: In this paper, a system and method for an interactive, Internet-based videoconferencing multicast operation which utilizes a video production studio with a live instructor giving lectures in real-time to multiple participating students is presented.
303
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Agent training sensitive call routing system
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227
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Joseph Claude Caci
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TL;DR: In this paper, a communication processor is coupled for processing optical signals for low cost communication and video conferencing with audio and video communications within the facility area and for long haul transmission.
229
Patent
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TL;DR: In this article, a system for transmitting and receiving multiplexed video and audio signals is described, where the transmission contents are controlled in respect to the transmission ratio of the video and the correction of the difference between the processing speeds of the two signals.
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195
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