Patents by Inventor Aleksandr Zelezniak

Aleksandr Zelezniak 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: 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
  • Patent number: 8891514
    Abstract: A system and method for providing PBX-like functionality at a mobile location includes the capability of maintaining a network session with a mobile number associated with a remote worker. The system utilizes a remote office platform interposed between a data communications network and a conventional PBX switch. A remotely located individual (such as a telecommuter) “logs in” to the remote office platform and, once the individual is authenticated, PBX-like communication with the mobile device is established. If the device is a computer-enabled device and includes a display, the platform can enable a graphical user interface emulating a PBX station set to the device. Alternatively, the remote worker can enter either spoken commands or series of DTMF sequences to utilize the PBX-like features. For these applications, the remote office platform includes a speech recognition module and a translation table for converting a sequence of DTMF tones into a PBX-like call feature (e.g., transfer, hold, mute, etc.).
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: November 18, 2014
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Yihsiu Chen, Mark Jeffrey Foladare, Kathleen C. Fowler, Shelley B. Goldman, Shaoqing Q. Wang, Roy Philip Weber, Robert S. Westrich, Aleksandr Zelezniak
  • 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
  • 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
  • Patent number: 7996036
    Abstract: A system and method for providing PBX-like functionality at a remote office location includes the capability of maintaining a network session with a mobile number associated with the remote worker once the worker terminates the remote office session. The system utilizes a remote office platform interposed between a data communications network and a conventional PBX switch (located either at a subscriber-based office location or within the communication network and shared by a number of different subscribers). A remotely located individual (such as a telecommuter) “logs in” to the remote office platform and, once the individual is authenticated, a graphical user interface (GUI) emulating a PBX station set is enabled at the remote employee's personal computer, the GUI including a field for entry of the user's mobile number.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: August 9, 2011
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Yihsiu Chen, Mark Jeffrey Foladare, Kathleen C. Fowler, Shelley B. Goldman, Shaoqing Q. Wang, Roy Philip Weber, Robert S. Westrich, Aleksandr Zelezniak
  • Patent number: 7961865
    Abstract: A method of handling incoming calls directed to a virtual communication subscriber is disclosed. An incoming call intended for the virtual communication subscriber is received at a first communication device. A call is placed to a second communication device using contact information provided by the virtual communication subscriber. Extension information is provided to a guest PBX when the call is answered which corresponds to a communication line associated with the second communication device. Upon connection to the second communication device, the incoming call is bridged with the call placed to the second communication device.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: June 14, 2011
    Assignee: AT&T Intellectual Property II, L.P
    Inventors: Yihsiu Chen, Mark Jeffrey Foladare, Shelley B. Goldman, Shaoqing Q. Wang, Roy Philip Weber, Robert S. Westrich, Aleksandr Zelezniak
  • Patent number: 7958231
    Abstract: In accordance with the teachings of the present invention, a method for selecting a server to provide content to a client is presented. A media controller receives a request from a client for content. The media controller instructs a plurality of servers each storing the content required by the client to perform a bandwidth measurement referred to in the disclosure as a bandwidth probe. The result of the bandwidth probe is communicated to the media controller. The media controller selects a server (i.e., an identified server) for communication with the client based on the result and communicates the selection in the form of a redirect command to the client. The client then communicates directly with the identified server.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: June 7, 2011
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: David Shur, Aleksandr Zelezniak
  • Patent number: 7765340
    Abstract: In accordance with the teachings of the present invention, a method for selecting a server to provide content to a client is presented. A media controller receives a request from a client for content. The media controller instructs a plurality of servers each storing the content required by the client to perform a bandwidth measurement referred to in the disclosure as a bandwidth probe. The result of the bandwidth probe is communicated to the media controller. The media controller selects a server (i.e., an identified server) for communication with the client based on the result and communicates the selection in the form of a redirect command to the client. The client then communicates directly with the identified server.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: July 27, 2010
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: David Shur, Aleksandr Zelezniak
  • 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
  • Patent number: 7620847
    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: January 26, 2009
    Date of Patent: November 17, 2009
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Nicholas Frank Maxemchuk, David McManamon, David Hilton Shur, Aleksandr Zelezniak
  • Patent number: 7613288
    Abstract: A method of handling incoming calls directed to a virtual communication subscriber is disclosed. An incoming call intended for the virtual communication subscriber is received at a first communication device. A call is placed to a second communication device using contact information provided by the virtual communication subscriber. Extension information is provided to a guest PBX when the call is answered which corresponds to a communication line associated with the second communication device. Upon connection to the second communication device, the incoming call is bridged with the call placed to the second communication device.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: November 3, 2009
    Assignee: AT&T Corp.
    Inventors: Yihsiu Chen, Mark Jeffrey Foladare, Shelley B. Goldman, Shaoqing Q. Wang, Roy Philip Weber, Robert S. Westrich, Aleksandr Zelezniak
  • Patent number: 7590889
    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 23, 2004
    Date of Patent: September 15, 2009
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Nicholas Frank Maxemchuk, David McManamon, David Hilton Shur, Aleksandr Zelezniak
  • Publication number: 20090070496
    Abstract: In accordance with the teachings of the present invention, a method for selecting a server to provide content to a client is presented. A media controller receives a request from a client for content. The media controller instructs a plurality of servers each storing the content required by the client to perform a bandwidth measurement referred to in the disclosure as a bandwidth probe. The result of the bandwidth probe is communicated to the media controller. The media controller selects a server (i.e., an identified server) for communication with the client based on the result and communicates the selection in the form of a redirect command to the client. The client then communicates directly with the identified server.
    Type: Application
    Filed: November 10, 2008
    Publication date: March 12, 2009
    Inventors: DAVID SHUR, Aleksandr Zelezniak
  • Publication number: 20090063682
    Abstract: In accordance with the teachings of the present invention, a method for selecting a server to provide content to a client is presented. A media controller receives a request from a client for content. The media controller instructs a plurality of servers each storing the content required by the client to perform a bandwidth measurement referred to in the disclosure as a bandwidth probe. The result of the bandwidth probe is communicated to the media controller. The media controller selects a server (i.e., an identified server) for communication with the client based on the result and communicates the selection in the form of a redirect command to the client. The client then communicates directly with the identified server.
    Type: Application
    Filed: November 10, 2008
    Publication date: March 5, 2009
    Inventors: DAVID SHUR, Aleksandr Zelezniak
  • Patent number: 7451251
    Abstract: In accordance with the teachings of the present invention, a method for selecting a server to provide content to a client is presented. A media controller receives a request from a client for content. The media controller instructs a plurality of servers each storing the content required by the client to perform a bandwidth measurement referred to in the disclosure as a bandwidth probe. The result of the bandwidth probe is communicated to the media controller. The media controller selects a server (i.e., an identified server) for communication with the client based on the result and communicates the selection in the form of a redirect command to the client. The client then communicates directly with the identified server.
    Type: Grant
    Filed: December 29, 2003
    Date of Patent: November 11, 2008
    Assignee: AT&T Corp.
    Inventors: David Shur, Aleksandr Zelezniak
  • Patent number: 7336656
    Abstract: A method of handling incoming calls directed to a virtual communication subscriber is disclosed. An incoming call intended for the virtual communication subscriber is received at a communication device. A call is placed to the communication device using contact information provided by the virtual communication subscriber. Extension information is provided to a SLS when the call is answered which corresponds to a communication line associated with the communication device. Upon connection to the communication device, the incoming call is bridged with the call placed to the communication device.
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: February 26, 2008
    Assignee: AT&T Corp.
    Inventors: Yihsiu Chen, Mark Jeffrey Foladare, Shelley B. Goldman, Shawn Jean, Joan Madden, Shaoqing Q. Wang, Roy Philip Weber, Robert S. Westrich, Aleksandr Zelezniak
  • Publication number: 20080043967
    Abstract: A method of handling incoming calls directed to a virtual communication subscriber is disclosed. An incoming call intended for the virtual communication subscriber is received at a communication device. A call is placed to the communication device using contact information provided by the virtual communication subscriber. Extension information is provided to a SLS when the call is answered which corresponds to a communication line associated with the communication device. Upon connection to the communication device, the incoming call is bridged with the call placed to the communication device.
    Type: Application
    Filed: October 25, 2007
    Publication date: February 21, 2008
    Inventors: Yihsiu Chen, Mark Foladare, Shelley Goldman, Shawn Jean, Joan Madden, Shaoqing Wang, Roy Weber, Robert Westrich, Aleksandr Zelezniak