Patents by Inventor David Hilton Shur

David Hilton Shur has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20180302236
    Abstract: A method includes dividing, at a cable modem termination system, a transmit stream into multiple data streams. The multiple data streams include a first data stream and a second data stream. Each of the multiple data streams has a lower bit rate than a bit rate of the transmit stream. The method includes transmitting, via the cable modem termination system, the first data stream over at least a first channel of a group of channels. The method also includes transmitting, via the cable modem termination system, the second data stream over at least a second channel of the group of channels. The group of channels supports traffic to a plurality of destinations. The first channel and the second channel are frequency-division multiplexed channels.
    Type: Application
    Filed: June 21, 2018
    Publication date: October 18, 2018
    Inventors: Bhavesh N. Desai, Nemmara K. Shankaranarayanan, David Hilton Shur, Aleksandra Smiljanic, Todd J. Totland, Jacobus E. Van der Merwe, Sheryl Leigh Woodward
  • Patent number: 10009190
    Abstract: A method at a cable modem termination system includes dividing a transmit stream into multiple data streams and transmitting the multiple data streams over multiple radio frequency channels of a group of channels. The group of channels supports traffic to a plurality of destinations. Each channel in the group of channels is a downstream channel.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: June 26, 2018
    Assignee: AT&T INTELLECTUAL PROPERTY II, L.P.
    Inventors: Bhavesh N. Desai, Nemmara K. Shankaranarayanan, David Hilton Shur, Aleksandra Smiljanic, Todd J. Totland, Jacobus E. Van der Merwe, Sheryl Leigh Woodward
  • Publication number: 20160127141
    Abstract: A system and method are disclosed for the repair of IP multicast sessions. A repair server polls multiple transmit servers to accumulate as many of the packets missing from the multicast session as possible. A network includes a source of multicast packets in a multicast session and a plurality of multicast recipients in that session. A repair server in the network provides the packets it receives to the recipients. The repair server includes a missing packet detector. There is a plurality of retransmit servers in the network buffering portions of the packets they respectively receive during the session. The repair server maintains an ordered list of the retransmit servers that are most likely to have buffered copies of packets missing from the session. When the repair server detects that there are packets missing from the session it has received, it uses the ordered list to sequentially request the missing packets from respective ones of the plurality of retransmit servers.
    Type: Application
    Filed: January 12, 2016
    Publication date: May 5, 2016
    Applicant: AT&T Intellectual Property II, L.P.
    Inventors: Nicholas Frank Maxemchuk, David McManamon, David Hilton Shur, Aleksandr Zelezniak
  • Patent number: 9270475
    Abstract: A system and method are disclosed for the repair of IP multicast sessions. A repair server polls multiple transmit servers to accumulate as many of the packets missing from the multicast session as possible. A network includes a source of multicast packets in a multicast session and a plurality of multicast recipients in that session. A repair server in the network provides the packets it receives to the recipients. The repair server includes a missing packet detector. There is a plurality of retransmit servers in the network buffering portions of the packets they respectively receive during the session. The repair server maintains an ordered list of the retransmit servers that are most likely to have buffered copies of packets missing from the session. When the repair server detects that there are packets missing from the session it has received, it uses the ordered list to sequentially request the missing packets from respective ones of the plurality of retransmit servers.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: February 23, 2016
    Assignee: AT&T INTELLECTUAL PROPERTY II, L.P.
    Inventors: Nicholas Frank Maxemchuk, David McManamon, David Hilton Shur, Aleksandr Zelezniak
  • Publication number: 20140369353
    Abstract: A method at a cable modem termination system includes dividing a transmit stream into multiple data streams and transmitting the multiple data streams over multiple radio frequency channels of a group of channels. The group of channels supports traffic to a plurality of destinations. Each channel in the group of channels is a downstream channel.
    Type: Application
    Filed: August 28, 2014
    Publication date: December 18, 2014
    Inventors: Bhavesh N. Desai, Nemmara K. Shankaranarayanan, David Hilton Shur, Aleksandra Smiljanic, Todd J. Totland, Jacobus E. Van der Merwe, Sheryl Leigh Woodward
  • Patent number: 8855147
    Abstract: A method includes receiving, at a transmit site, a first stream of packets addressed to an end user device in a first address space. The first stream of packets is encapsulated to form a second stream of packets addressed in a second address space. A first packet of the second stream of packets is assigned to a first radio frequency channel of a plurality of radio frequency channels. A second packet of the second stream of packets is assigned to a second radio frequency channel of the plurality of radio frequency channels. The first packet is transmitted via the first radio frequency channel and, in parallel, the second packet is transmitted via the second radio frequency channel.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: October 7, 2014
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Bhavesh N. Desai, Nemmara K. Shankaranarayanan, David Hilton Shur, Aleksandra Smiljanic, Todd J. Totland, Jacobus E. van der Merwe, Sheryl Leigh Woodward
  • Publication number: 20140286172
    Abstract: A system and method are disclosed for the repair of IP multicast sessions. A repair server polls multiple transmit servers to accumulate as many of the packets missing from the multicast session as possible. A network includes a source of multicast packets in a multicast session and a plurality of multicast recipients in that session. A repair server in the network provides the packets it receives to the recipients. The repair server includes a missing packet detector. There is a plurality of retransmit servers in the network buffering portions of the packets they respectively receive during the session. The repair server maintains an ordered list of the retransmit servers that are most likely to have buffered copies of packets missing from the session. When the repair server detects that there are packets missing from the session it has received, it uses the ordered list to sequentially request the missing packets from respective ones of the plurality of retransmit servers.
    Type: Application
    Filed: June 6, 2014
    Publication date: September 25, 2014
    Inventors: Nicholas Frank Maxemchuk, David McManamon, David Hilton Shur, Aleksandr Zelezniak
  • Patent number: 8751865
    Abstract: A system and method are disclosed for the repair of IP multicast sessions. A repair server polls multiple transmit servers to accumulate as many of the packets missing from the multicast session as possible. A network includes a source of multicast packets in a multicast session and a plurality of multicast recipients in that session. A repair server in the network provides the packets it receives to the recipients. The repair server includes a missing packet detector. There is a plurality of retransmit servers in the network buffering portions of the packets they respectively receive during the session. The repair server maintains an ordered list of the retransmit servers that are most likely to have buffered copies of packets missing from the session. When the repair server detects that there are packets missing from the session it has received, it uses the ordered list to sequentially request the missing packets from respective ones of the plurality of retransmit servers.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: June 10, 2014
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Nicholas Frank Maxemchuk, David McManamon, David Hilton Shur, Aleksandr Zelezniak
  • Patent number: 8660115
    Abstract: The present invention is directed to mechanisms for content-aware redirection and content exchange/content discovery that permit a request for content to be redirected to a particular advantageous server that can serve the content.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: February 25, 2014
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Charles D. Cranor, Raman Gopalakrishnan, Matthew D. Green, Charles Robert Kalmanek, Jr., David Hilton Shur, Sandeep Sibal, Jacobus E. van der Merwe
  • Publication number: 20130315127
    Abstract: A system and method are disclosed for the repair of IP multicast sessions. A repair server polls multiple transmit servers to accumulate as many of the packets missing from the multicast session as possible. A network includes a source of multicast packets in a multicast session and a plurality of multicast recipients in that session. A repair server in the network provides the packets it receives to the recipients. The repair server includes a missing packet detector. There is a plurality of retransmit servers in the network buffering portions of the packets they respectively receive during the session. The repair server maintains an ordered list of the retransmit servers that are most likely to have buffered copies of packets missing from the session. When the repair server detects that there are packets missing from the session it has received, it uses the ordered list to sequentially request the missing packets from respective ones of the plurality of retransmit servers.
    Type: Application
    Filed: July 30, 2013
    Publication date: November 28, 2013
    Applicant: AT&T INTELLECTUAL PROPERTY II, L.P.
    Inventors: Nicholas Frank Maxemchuk, David McManamon, David Hilton Shur, Aleksandr Zelezniak
  • Patent number: 8499211
    Abstract: A system and method are disclosed for the repair of IP multicast sessions. A repair server polls multiple transmit servers to accumulate as many of the packets missing from the multicast session as possible. A network includes a source of multicast packets in a multicast session and a plurality of multicast recipients in that session. A repair server in the network provides the packets it receives to the recipients. The repair server includes a missing packet detector. There is a plurality of retransmit servers in the network buffering portions of the packets they respectively receive during the session. The repair server maintains an ordered list of the retransmit servers that are most likely to have buffered copies of packets missing from the session. When the repair server detects that there are packets missing from the session it has received, it uses the ordered list to sequentially request the missing packets from respective ones of the plurality of retransmit servers.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: July 30, 2013
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Nicholas Frank Maxemchuk, David McManamon, David Hilton Shur, Aleksandr Zelezniak
  • Publication number: 20130013747
    Abstract: The present invention is directed to mechanisms for content-aware redirection and content exchange/content discovery that permit a request for content to be redirected to a particular advantageous server that can serve the content.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Applicant: AT&T Corp.
    Inventors: Charles D. Cranor, Raman Gopalakrishnan, Matthew D. Green, Charles Robert Kalmanek, JR., David Hilton Shur, Sandeep Sibal, Jacobus E. van der Merwe
  • Patent number: 8306022
    Abstract: The present invention is directed to mechanisms for content-aware redirection and content exchange/content discovery that permit a request for content to be redirected to a particular advantageous server that can serve the content.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: November 6, 2012
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Charles D. Cranor, Raman Gopalakrishnan, Matthew D. Green, Charles Robert Kalmanek, Jr., David Hilton Shur, Sandeep Sibal, Jacobus E. van der Merwe
  • Publication number: 20110261737
    Abstract: A method includes receiving, at a transmit site, a first stream of packets addressed to an end user device in a first address space. The first stream of packets is encapsulated to form a second stream of packets addressed in a second address space. A first packet of the second stream of packets is assigned to a first radio frequency channel of a plurality of radio frequency channels. A second packet of the second stream of packets is assigned to a second radio frequency channel of the plurality of radio frequency channels. The first packet is transmitted via the first radio frequency channel and, in parallel, the second packet is transmitted via the second radio frequency channel.
    Type: Application
    Filed: July 6, 2011
    Publication date: October 27, 2011
    Applicant: AT&T Intellectual Property II, L.P. (formerly known as AT&T CORP.)
    Inventors: Bhavesh N. Desai, Nemmara K. Shankaranarayanan, David Hilton Shur, Aleksandra Smiljanic, Todd J. Totland, Jacobus E. van der Merwe, Sheryl Leigh Woodward
  • Patent number: 8000331
    Abstract: A receive device includes a plurality of demodulators and a tunnel destination. The demodulators are configured to receive multiple data streams, each of the multiple data streams having a bit rate that is lower than a bit rate of a transmit data stream. The tunnel destination is configured to recombine the multiple data streams to provide a receive data stream having a bit rate equal to the bit rate of the transmit data stream. At least one of multiple radio frequency channels is connected to a legacy user between a transmit site and the receive device.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: August 16, 2011
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Bhavesh N. Desai, Nemmara K. Shankaranarayanan, David Hilton Shur, Aleksandra Smiljanic, Todd L. Totland, Jacobus Van der Merwe, Sheryl Leigh Woodward
  • Patent number: 7990977
    Abstract: A method of sending data from a transmit site to a receive device includes dividing a first transmit data stream having a first bit rate into multiple data streams with each of the multiple data streams having a bit rate that is lower than the first bit rate. Each of the multiple data streams is transmitted over a cable network having multiple radio frequency channels. The multiple data streams are recombined at the receive device to provide a receive data stream having a bit rate equal to the first bit rate. A second transmit data stream is transmitted over one of the radio frequency channels to a legacy user connected to the one radio frequency channel between the transmit site and the receive device.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: August 2, 2011
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Bhavesh N. Desai, Nemmara K. Shankaranarayanan, David Hilton Shur, Aleksandra Smiljanic, Todd J. Totland, Jacobus E. van der Merwe, Sheryl Leigh Woodward
  • Publication number: 20100265942
    Abstract: A receive device includes a plurality of demodulators and a tunnel destination. The demodulators are configured to receive multiple data streams, each of the multiple data streams having a bit rate that is lower than a bit rate of a transmit data stream. The tunnel destination is configured to recombine the multiple data streams to provide a receive data stream having a bit rate equal to the bit rate of the transmit data stream. At least one of multiple radio frequency channels is connected to a legacy user between a transmit site and the receive device.
    Type: Application
    Filed: April 23, 2010
    Publication date: October 21, 2010
    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Bhavesh N. Desai, Nemmara K. Shankaranarayanan, David Hilton Shur, Aleksandra Smiljanic, Todd J. Totland, Jacobus E. Van der Merwe, Sheryl Leigh Woodward
  • Publication number: 20100208751
    Abstract: A method of sending data from a transmit site to a receive device includes dividing a first transmit data stream having a first bit rate into multiple data streams with each of the multiple data streams having a bit rate that is lower than the first bit rate. Each of the multiple data streams is transmitted over a cable network having multiple radio frequency channels. The multiple data streams are recombined at the receive device to provide a receive data stream having a bit rate equal to the first bit rate. A second transmit data stream is transmitted over one of the radio frequency channels to a legacy user connected to the one radio frequency channel between the transmit site and the receive device.
    Type: Application
    Filed: April 23, 2010
    Publication date: August 19, 2010
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Bhavesh N. Desai, Nemmara K. Shankaranarayanan, David Hilton Shur, Aleksandra Smiljanic, Todd J. Totland, Jacobus E.Van der Merwe, Sheryl Leigh Woodward
  • Patent number: 7724744
    Abstract: Unicast endpoint clients on an IP Unicast network are provided access to Multicast sessions on an IP Multicast network through a Multicast-Unicast gateway server. The server obtains information about sessions on the Multicast network and makes such information available to a Unicast client on the Unicast network upon request by the client. Upon being presented with a list describing the subject matter of each session, the user at the Unicast client selects the session to which he or she wants to join, which causes the Multicast-Unicast server to join the appropriate session on behalf of the requesting client. All packets then received by the server from the Unicast client are address-translated to the appropriate Multicast session address and vice versa. The Unicast client is then able to participate in the Multicast session as both a sender and receiver of packets to and from other Unicast and Multicast clients which are active.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: May 25, 2010
    Assignee: AT&T Corp.
    Inventors: David Hilton Shur, Aleksandr Zelezniak
  • Publication number: 20090290543
    Abstract: A method includes receiving a plurality of radio frequency (RF) channels in parallel at a receive site, and demodulating the RF channels using a plurality of demodulators of the receive site to generate a plurality of streams of packets, each stream of packets having a first address space. The method also includes combining the plurality of streams of packets at a tunneling destination of the receive site to generate a first stream of packets having a second address space.
    Type: Application
    Filed: August 4, 2009
    Publication date: November 26, 2009
    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Bhavesh N. Desai, Nemmara K. Shankaranarayanan, David Hilton Shur, Aleksandra Smiljanic, Todd L. Totland, Jacobus Van der Merwe, Sheryl Leigh Woodward