Television – Two-way video and voice communication – User positioning
Patent
1997-08-04
1999-05-18
Loomis, Paul
Television
Two-way video and voice communication
User positioning
348 13, 348 16, H04N7/14
Patent
active
059055243
ABSTRACT:
Creation of a digital ISDN server for distribution and interactive services in video telephony, which can be used for a great number of video telephones including video telephones of different designs. Provision of video and audio signals with different formats and different transmission rates for different video telephones. Signalling of a terminal (TN1, . . . , TNp) is provided by the server for each requesting video telephone, where coded video and audio signals of different transmission rates and different formats are provided according to the design of the video telephone. These are available either in real time or are downloaded from corresponding storage media. In addition, an interactive control can be implemented.
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patent: 5539448 (1996-07-01), Verhille et al.
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patent: 5812778 (1998-09-01), Peters et al.
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patent: 5828370 (1998-10-01), Moeller et al.
"Telsis Video-Call-the world;s first commercially available ISDN server for interactive videotelephony" from Interactive Video Telephony by Prospects of The Telsis Co., Copyrt 1995.
Alcatel Alsthom Compagnie Generale d'Electricite
Loomis Paul
Ramakrishnaiah Melur
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