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).
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Patent number: 11195171Abstract: 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: GrantFiled: May 2, 2018Date of Patent: December 7, 2021Assignee: AT&T Intellectual Property I, L.P.Inventors: Zhi Li, Canhui Ou, Raghvendra Savoor, Dipak Ghosal
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Publication number: 20180247305Abstract: 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: ApplicationFiled: May 2, 2018Publication date: August 30, 2018Inventors: ZHI LI, CANHUI OU, RAGHVENDRA SAVOOR, DIPAK GHOSAL
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Patent number: 9984369Abstract: 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: GrantFiled: December 19, 2007Date of Patent: May 29, 2018Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.Inventors: Zhi Li, Canhui Ou, Raghvendra Savoor, Dipak Ghosal
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Patent number: 9935994Abstract: 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: GrantFiled: February 22, 2016Date of Patent: April 3, 2018Assignee: AT&T INELLECTUAL PROPERTY I, L.P.Inventors: Sarat Puthenpura, Stuart Blackburn, Dipak Ghosal, Gopalakrishnan Meempat, Ravi Raina, Raghvendra Savoor, Vishwanath Ramamurthi, Huahui Wang
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Patent number: 9462232Abstract: 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: GrantFiled: October 11, 2012Date of Patent: October 4, 2016Assignee: AT&T Intellectual Property I, L.P.Inventors: Dipak Ghosal, Canhui Ou, Zhi Li
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Publication number: 20160173558Abstract: 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: ApplicationFiled: February 22, 2016Publication date: June 16, 2016Inventors: Sarat Puthenpura, Stuart Blackburn, Dipak Ghosal, Gopalakrishnan Meempat, Ravi Raina, Raghvendra Savoor, Vishwanath Ramamurthi, Huahui Wang
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Patent number: 9270725Abstract: 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: GrantFiled: November 25, 2013Date of Patent: February 23, 2016Assignee: AT&T Intellectual Property I, L.P.Inventors: Sarat Puthenpura, Stuart Blackburn, Dipak Ghosal, Gopalakrishnan Meempat, Ravi Raina, Raghvendra Savoor, Vishwanath Ramamurthi, Hauhui Wang
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Publication number: 20140082203Abstract: 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: ApplicationFiled: November 25, 2013Publication date: March 20, 2014Applicant: AT&T Intellectual Property I, L.P.Inventors: SARAT PUTHENPURA, Stuart Blackburn, Dipak Ghosal, Gopalakrishnan Meempat, Ravi Raina, Raghvendra Savoor, Vishwanath Ramamurthy, Hauhui Wang
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Patent number: 8601503Abstract: 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: GrantFiled: November 30, 2012Date of Patent: December 3, 2013Assignee: AT&T Intellectual Property I, L.P.Inventors: Zhi Li, Dipak Ghosal, Canhui Ou, Raghvendra Savoor
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Patent number: 8595374Abstract: 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: GrantFiled: December 8, 2010Date of Patent: November 26, 2013Assignee: AT&T Intellectual Property I, L.P.Inventors: Sarat Puthenpura, Stuart Blackburn, Dipak Ghosal, Gopalakrishnan Meempat, Ravi Raina, Raghvendra Savoor, Vishwanath Ramamurthi, Huahui Wang
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Patent number: 8359609Abstract: 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: GrantFiled: April 11, 2011Date of Patent: January 22, 2013Assignee: AT&T Intellectual Property I, L.P.Inventors: Zhi Li, Dipak Ghosal, Canhui Ou, Raghvendra Savoor
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Patent number: 8312558Abstract: 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: GrantFiled: January 3, 2007Date of Patent: November 13, 2012Assignee: AT&T Intellectual Property I, L.P.Inventors: Dipak Ghosal, Canhui Ou, Zhi Li
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Publication number: 20120151078Abstract: 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: ApplicationFiled: December 8, 2010Publication date: June 14, 2012Inventors: Sarat PUTHENPURA, Stuart BLACKBURN, Dipak GHOSAL, Gopalakrishnan MEEMPAT, Ravi RAINA, Raghvendra SAVOOR, Vishwanath RAMAMURTHI, Huahui WANG
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Publication number: 20110197240Abstract: 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: ApplicationFiled: April 11, 2011Publication date: August 11, 2011Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.Inventors: Zhi Li, Dipak Ghosal, Canhui Ou, Raghvendra Savoor
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Patent number: 7945924Abstract: 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: GrantFiled: November 15, 2007Date of Patent: May 17, 2011Assignee: AT&T Intellectual Property I, L.P.Inventors: Zhi Li, Dipak Ghosal, Canhui Ou, Raghvendra Savoor
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Publication number: 20090165031Abstract: 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: ApplicationFiled: December 19, 2007Publication date: June 25, 2009Applicant: AT&T Knowledge Ventures, L.P.Inventors: Zhi Li, Canhui Ou, Raghvendra Savoor, Dipak Ghosal
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Publication number: 20090133079Abstract: 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: ApplicationFiled: November 15, 2007Publication date: May 21, 2009Applicant: AT&T KNOWLEDGE VENTURES, L.P.Inventors: Zhi Li, Dipak Ghosal, Canhui Ou, Raghvendra Savoor
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Publication number: 20080163288Abstract: 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: ApplicationFiled: January 3, 2007Publication date: July 3, 2008Applicant: AT&T Knowledge Ventures, LPInventors: Dipak Ghosal, Canhui Ou, Zhi Li
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Patent number: 6473401Abstract: 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: GrantFiled: April 5, 1999Date of Patent: October 29, 2002Assignee: iScale, Inc.Inventors: Keith Kong, Dipak Ghosal