Patents by Inventor Dipak Ghosal

Dipak Ghosal 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).

  • Patent number: 11195171
    Abstract: A method includes receiving, by a server, a data transmission of video content destined for a data storage device. The method includes generating, by the server, a content signature by application of a wavelet transform to a plurality of frames of a time sequence of frames of the video content. The method includes selecting, by the server based on content metadata for the video content, particular prohibited content signatures from a plurality of prohibited content signatures. Each prohibited content signature of the particular prohibited content signatures corresponds to a wavelet transform of a plurality of frames of prohibited content. The method also includes, in response to a first determination that a first prohibited content signature of the particular prohibited content signatures matches the content signature, preventing transmission of the video content from the server to the data storage device.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: December 7, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Zhi Li, Canhui Ou, Raghvendra Savoor, Dipak Ghosal
  • Publication number: 20180247305
    Abstract: A method includes receiving, by a server, a data transmission of video content destined for a data storage device. The method includes generating, by the server, a content signature by application of a wavelet transform to a plurality of frames of a time sequence of frames of the video content. The method includes selecting, by the server based on content metadata for the video content, particular prohibited content signatures from a plurality of prohibited content signatures. Each prohibited content signature of the particular prohibited content signatures corresponds to a wavelet transform of a plurality of frames of prohibited content. The method also includes, in response to a first determination that a first prohibited content signature of the particular prohibited content signatures matches the content signature, preventing transmission of the video content from the server to the data storage device.
    Type: Application
    Filed: May 2, 2018
    Publication date: August 30, 2018
    Inventors: ZHI LI, CANHUI OU, RAGHVENDRA SAVOOR, DIPAK GHOSAL
  • Patent number: 9984369
    Abstract: A method of identifying target video content is provided. The method includes accessing content metadata of a video content item at a content storage. The method also includes determining at least one content signature based on the video content item and determining whether the video content item includes target content based at least partially on the content signature and the content metadata.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: May 29, 2018
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Zhi Li, Canhui Ou, Raghvendra Savoor, Dipak Ghosal
  • Patent number: 9935994
    Abstract: A method, computer readable medium and apparatus for calculating a capacity for high speed packet access data in a link in a communications network are disclosed. For example, the method initializes parameters associated with streaming data, long elastic data and short elastic data, determines, via a processor, a capacity value such that a quality of service metric is met for the streaming data, the long elastic data and the short elastic data and provisions the link with the capacity value if the quality of service metric is met.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: April 3, 2018
    Assignee: AT&T INELLECTUAL PROPERTY I, L.P.
    Inventors: Sarat Puthenpura, Stuart Blackburn, Dipak Ghosal, Gopalakrishnan Meempat, Ravi Raina, Raghvendra Savoor, Vishwanath Ramamurthi, Huahui Wang
  • Patent number: 9462232
    Abstract: A method includes inspecting a packet stream sent from a set-top box device via a network. The packet stream includes video content that is divided into a plurality of subsections. The method includes generating a plurality of signatures by applying a wavelet transform to each of the plurality of subsections, and determining a match between the video content and protected video content based at least in part on a comparison of the plurality of signatures to one or more stored signatures generated based on the protected video content.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: October 4, 2016
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Dipak Ghosal, Canhui Ou, Zhi Li
  • Publication number: 20160173558
    Abstract: A method, computer readable medium and apparatus for calculating a capacity for high speed packet access data in a link in a communications network are disclosed. For example, the method initializes parameters associated with streaming data, long elastic data and short elastic data, determines, via a processor, a capacity value such that a quality of service metric is met for the streaming data, the long elastic data and the short elastic data and provisions the link with the capacity value if the quality of service metric is met.
    Type: Application
    Filed: February 22, 2016
    Publication date: June 16, 2016
    Inventors: Sarat Puthenpura, Stuart Blackburn, Dipak Ghosal, Gopalakrishnan Meempat, Ravi Raina, Raghvendra Savoor, Vishwanath Ramamurthi, Huahui Wang
  • Patent number: 9270725
    Abstract: A method, computer readable medium and apparatus for calculating a capacity for high speed packet access data in a link in a communications network are disclosed. For example, the method initializes parameters associated with streaming data, long elastic data and short elastic data, determines, via a processor, a capacity value such that a quality of service metric is met for the streaming data, the long elastic data and the short elastic data and provisions the link with the capacity value if the quality of service metric is met.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: February 23, 2016
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Sarat Puthenpura, Stuart Blackburn, Dipak Ghosal, Gopalakrishnan Meempat, Ravi Raina, Raghvendra Savoor, Vishwanath Ramamurthi, Hauhui Wang
  • Publication number: 20140082203
    Abstract: A method, computer readable medium and apparatus for calculating a capacity for high speed packet access data in a link in a communications network are disclosed. For example, the method initializes parameters associated with streaming data, long elastic data and short elastic data, determines, via a processor, a capacity value such that a quality of service metric is met for the streaming data, the long elastic data and the short elastic data and provisions the link with the capacity value if the quality of service metric is met.
    Type: Application
    Filed: November 25, 2013
    Publication date: March 20, 2014
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: SARAT PUTHENPURA, Stuart Blackburn, Dipak Ghosal, Gopalakrishnan Meempat, Ravi Raina, Raghvendra Savoor, Vishwanath Ramamurthy, Hauhui Wang
  • Patent number: 8601503
    Abstract: A system and method is disclosed for detecting distribution of multimedia content. The volume level of data traffic is monitored for a plurality of users to select any users with high-bandwidth usage. The time of day and the day of the week may be considered when determining whether a user is a high-bandwidth user. Upon selecting a user as one with high-bandwidth usage, such user may be subject to packet inspections of data traffic streams. In some embodiments, content identification parameters or watermarks are added to one or more packets in a data traffic stream carrying multimedia content.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: December 3, 2013
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Zhi Li, Dipak Ghosal, Canhui Ou, Raghvendra Savoor
  • Patent number: 8595374
    Abstract: A method, computer readable medium and apparatus for calculating a capacity for high speed packet access data in a link in a communications network are disclosed. For example, the method initializes parameters associated with streaming data, long elastic data and short elastic data, determines, via a processor, a capacity value such that a quality of service metric is met for the streaming data, the long elastic data and the short elastic data and provisions the link with the capacity value if the quality of service metric is met.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: November 26, 2013
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Sarat Puthenpura, Stuart Blackburn, Dipak Ghosal, Gopalakrishnan Meempat, Ravi Raina, Raghvendra Savoor, Vishwanath Ramamurthi, Huahui Wang
  • Patent number: 8359609
    Abstract: A system and method is disclosed for detecting distribution of multimedia content. The volume level of data traffic is monitored for a plurality of users to select any users with high-bandwidth usage. The time of day and the day of the week may be considered when determining whether a user is a high-bandwidth user. Upon selecting a user as one with high-bandwidth usage, such user may be subject to packet inspections of data traffic streams. In some embodiments, content identification parameters or watermarks are added to one or more packets in a data traffic stream carrying multimedia content.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: January 22, 2013
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Zhi Li, Dipak Ghosal, Canhui Ou, Raghvendra Savoor
  • Patent number: 8312558
    Abstract: A method of managing protected video content is presented that includes inspecting a packet stream received from a subscriber broadband interface, where the packet stream includes video content. The method also includes generating a signature based on the video content and comparing the generated signature with a stored signature corresponding to protected video content. In a particular embodiment, the method can include storing data indicating that the protected video content has been re-distributed from the subscriber broadband interface when the generated signature matches the stored signature.
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: November 13, 2012
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Dipak Ghosal, Canhui Ou, Zhi Li
  • Publication number: 20120151078
    Abstract: A method, computer readable medium and apparatus for calculating a capacity for high speed packet access data in a link in a communications network are disclosed. For example, the method initializes parameters associated with streaming data, long elastic data and short elastic data, determines, via a processor, a capacity value such that a quality of service metric is met for the streaming data, the long elastic data and the short elastic data and provisions the link with the capacity value if the quality of service metric is met.
    Type: Application
    Filed: December 8, 2010
    Publication date: June 14, 2012
    Inventors: Sarat PUTHENPURA, Stuart BLACKBURN, Dipak GHOSAL, Gopalakrishnan MEEMPAT, Ravi RAINA, Raghvendra SAVOOR, Vishwanath RAMAMURTHI, Huahui WANG
  • Publication number: 20110197240
    Abstract: A system and method is disclosed for detecting distribution of multimedia content. The volume level of data traffic is monitored for a plurality of users to select any users with high-bandwidth usage. The time of day and the day of the week may be considered when determining whether a user is a high-bandwidth user. Upon selecting a user as one with high-bandwidth usage, such user may be subject to packet inspections of data traffic streams. In some embodiments, content identification parameters or watermarks are added to one or more packets in a data traffic stream carrying multimedia content.
    Type: Application
    Filed: April 11, 2011
    Publication date: August 11, 2011
    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Zhi Li, Dipak Ghosal, Canhui Ou, Raghvendra Savoor
  • Patent number: 7945924
    Abstract: A system and method is disclosed for detecting distribution of multimedia content. The volume level of data traffic is monitored for a plurality of users to select any users with high-bandwidth usage. The time of day and the day of the week may be considered when determining whether a user is a high-bandwidth user. Upon selecting a user as one with high-bandwidth usage, such user may be subject to packet inspections of data traffic streams. In some embodiments, content identification parameters or watermarks are added to one or more packets in a data traffic stream carrying multimedia content.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: May 17, 2011
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Zhi Li, Dipak Ghosal, Canhui Ou, Raghvendra Savoor
  • Publication number: 20090165031
    Abstract: A method of identifying target video content is provided. The method includes accessing content metadata of a video content item at a content storage. The method also includes determining at least one content signature based on the video content item and determining whether the video content item includes target content based at least partially on the content signature and the content metadata.
    Type: Application
    Filed: December 19, 2007
    Publication date: June 25, 2009
    Applicant: AT&T Knowledge Ventures, L.P.
    Inventors: Zhi Li, Canhui Ou, Raghvendra Savoor, Dipak Ghosal
  • Publication number: 20090133079
    Abstract: A system and method is disclosed for detecting distribution of multimedia content. The volume level of data traffic is monitored for a plurality of users to select any users with high-bandwidth usage. The time of day and the day of the week may be considered when determining whether a user is a high-bandwidth user. Upon selecting a user as one with high-bandwidth usage, such user may be subject to packet inspections of data traffic streams. In some embodiments, content identification parameters or watermarks are added to one or more packets in a data traffic stream carrying multimedia content.
    Type: Application
    Filed: November 15, 2007
    Publication date: May 21, 2009
    Applicant: AT&T KNOWLEDGE VENTURES, L.P.
    Inventors: Zhi Li, Dipak Ghosal, Canhui Ou, Raghvendra Savoor
  • Publication number: 20080163288
    Abstract: A method of managing protected video content is presented that includes inspecting a packet stream received from a subscriber broadband interface, where the packet stream includes video content. The method also includes generating a signature based on the video content and comparing the generated signature with a stored signature corresponding to protected video content. In a particular embodiment, the method can include storing data indicating that the protected video content has been re-distributed from the subscriber broadband interface when the generated signature matches the stored signature.
    Type: Application
    Filed: January 3, 2007
    Publication date: July 3, 2008
    Applicant: AT&T Knowledge Ventures, LP
    Inventors: Dipak Ghosal, Canhui Ou, Zhi Li
  • Patent number: 6473401
    Abstract: A system and method for avoiding internet congestion that employs a pseudo-serving mechanism that entails the use of a contract method of cooperatively sharing retained resources within the normal body of network requesters which thereby reduces the burden on heavily loaded servers and lowers both data congestion and expected user response times. Requesters, or their proxies, can elect to improve data access time by contracting for the data, whereby they warrant that they shall serve resources on a limited basis in exchange for speedier access to the data, the access to which is either granted directly, or through another pseudo-server. Congested servers thereby share their burden with the requesters constituting the burden, while requesting servers may exchange their unused bandwidth and memory resource for faster data access. Security features along with the fundamental incentives of the method allow for operation with variously uncooperative network servers.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: October 29, 2002
    Assignee: iScale, Inc.
    Inventors: Keith Kong, Dipak Ghosal