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David Hilton Shur: Method and apparatus for watermarking digital bitstreams. AT&T, December 11, 2001: US06330672 (233 worldwide citation)

A signal is encoded, for example, perceptually and, during or after the perceptual coding process, a digital watermark is inserted into a quantized digital information signal resulting from the perceptual coding process in such a manner that its insertion is imperceptible to one later listening to, ...


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Ali Mohammad Kujoory, Samir S Saad, David Hilton Shur, Kamlesh T Tewani, James Kwong Yee: Management of ATM virtual circuits with resources reservation protocol. Lucent Technologies, February 1, 2000: US06021263 (171 worldwide citation)

A method and apparatus for use in a network utilizing Internet Protocol (IP), Resource Reservation Protocol (RSVP), and Asynchronous Transfer Mode (ATM) protocol is provided. An intelligent policy mapping database (PMD) accessible at the network level by both the RSVP and ATM protocol stacks maps RS ...


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Sanjay Agraharam, Prasad Balagopalan, Marian Rogers Croak, Tom Evslin, Stephen M Gurey, Ping Benjamin Hu, Ram S Ramamurthy, Richard T Roca, David Hilton Shur, Sandeep Sibal, Peter H Stuntebeck, Roy Philip Weber, Aleksandr Zelezniak: Method of providing seamless cross-service connectivity in telecommunications network. AT&T, November 16, 1999: US05987508 (162 worldwide citation)

Cross-service connectivity between use of the telephone network and use of an e-mail data network is provided by enabling a recipient of an e-mail message to receive e-mail messages through an alias e-mail address which is directly associated with the recipient's telephone number. Thus, the alias e- ...


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Antonio DeSimone, David Hilton Shur, Sandeep Sibal: Inter-cache protocol for improved WEB performance. AT&T, Stephen M Gurey, July 28, 1998: US05787470 (157 worldwide citation)

On the Internet, different caches may contain copies of objects that have been copied from originating servers when they were accessed by users. Interconnected caches may have different objects stored thereon that might at some time be requested by a client terminal that is connected to a cache othe ...


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Schuyler Reynier Quackenbush, Amy Ruth Reibman, David Hilton Shur, James H Snyder: Electronic watermarking in the compressed domain utilizing perceptual coding. AT&T, Banner & Witcoff, December 10, 2002: US06493457 (142 worldwide citation)

A method and apparatus are described for inserting a watermark in the compressed domain. The watermark inserted does not require a reference. An overall watermarking system incorporating the invention combines cleartext, bitstream, and integrated watermarking. In a perceptual coder, the data enters ...


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Antonio DeSimone, Joseph Golan, Ashok K Kuthyar, Bryant Richard Parent, Ram S Ramamurthy, David Hilton Shur: Method for managing multicast addresses for transmitting and receiving multimedia conferencing information on an internet protocol (IP) network. AT&T, January 4, 2000: US06011782 (121 worldwide citation)

In a multicast capable IP network, each client terminal on a multimedia conference, for each media type it transmits, is assigned a multicast IP address and a port number (together known as a socket) on which to transmit packets, wherein each assigned multicast IP address is unique and different tha ...


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Antonio DeSimone, Joseph Golan, Ashok K Kuthyar, Bryant Richard Parent, Ram S Ramamurthy, David Hilton Shur: Method for managing multicast addresses for transmitting and receiving multimedia conferencing information on an internet protocol (IP) network implemented over an ATM network. AT&T, October 24, 2000: US06138144 (96 worldwide citation)

In a multicast capable IP network implemented over an ATM network, each client terminal on a multimedia conference, for each media type it transmits, is assigned a multicast IP address and a port number (together known as a socket) on which to transmit packets, wherein each assigned multicast IP add ...


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Sanjay Agraharam, Robert Edward Markowitz, Kenneth H Rosen, David Hilton Shur, Joel A Winthrop: Indexing multimedia communications. AT&T, Oliff & Berridge, April 23, 2002: US06377995 (96 worldwide citation)

A network based platform uses face recognition, speech recognition, background change detection and key scene events to index multimedia communications. Before the multimedia communication begins, active participants register their speech and face models with a server. The process consists of creati ...