Patents by Inventor Rohit Chandra
Rohit Chandra 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: 10516586Abstract: Systems, methods, and computer-readable media for identifying bogon addresses. A system can obtain an indication of address spaces in a network. The indication can be based on route advertisements transmitted by routers associated with the network. The system can receive a report generated by a capturing agent deployed on a host. The report can identify a flow captured by the capturing agent at the host. The system can identify a network address associated with the flow and, based on the indication of address spaces, the system can determine whether the network address is within the address spaces in the network. When the network address is not within the address spaces in the network, the system can determine that the network address is a bogon address. When the network address is within the address spaces in the network, the system can determine that the network address is not a bogon address.Type: GrantFiled: June 2, 2016Date of Patent: December 24, 2019Assignee: CISCO TECHNOLOGY, INC.Inventors: Shashidhar Gandham, Rohit Chandra Prasad, Abhishek Ranjan Singh, Navindra Yadav, Khawar Deen, Varun Sagar Malhotra
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Patent number: 10511568Abstract: The technologies described herein identify multiple electronic devices belonging to the same group. A computer system receives, from network accessing applications of a plurality of electronic devices, internet protocol (IP) trajectory information about the network accessing applications via a network. The IP trajectory information includes a user identifier, a list of IP addresses associated with each of the network accessing applications, and timestamps specifying times each of the network accessing applications accesses the network. The computer system identifies and removes commercial IP addresses from the list of IP addresses, analyzes IP trajectory information to retrieve a most commonly used IP address for each of the network accessing applications during a certain period, and determines that different network accessing applications belong to the same group if the most commonly used IP addresses for the different network accessing applications are the same.Type: GrantFiled: December 28, 2017Date of Patent: December 17, 2019Assignee: Oath Inc.Inventors: Hao Cheng, Rohit Chandra, Jimmy Yang
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Patent number: 10454793Abstract: A method includes capturing first data associated with a first packet flow originating from a first host using a first capture agent deployed at the first host to yield first flow data, capturing second data associated with a second packet flow originating from the first host from a second capture agent deployed on a second host to yield second flow data and comparing the first flow data and the second flow data to yield a difference. When the difference is above a threshold value, the method includes determining that the second packet flow was transmitted by a component that bypassed an operating stack of the first host or a packet capture agent at the device to yield a determination, detecting that hidden network traffic exists, and predicting a malware issue with the first host based on the determination.Type: GrantFiled: June 2, 2016Date of Patent: October 22, 2019Assignee: CISCO TECHNOLOGY, INC.Inventors: Khawar Deen, Navindra Yadav, Anubhav Gupta, Shashidhar Gandham, Rohit Chandra Prasad, Abhishek Ranjan Singh, Shih-Chun Chang
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Patent number: 10439904Abstract: Systems, methods, and computer-readable media for managing compromised sensors in multi-tiered virtualized environments. A method includes determining a lineage for a process within the network and then evaluating, through knowledge of the lineage, the source of the command that initiated the process. The method includes capturing data from a plurality of capture agents at different layers of a network, each capture agent of the plurality of capture agents configured to observe network activity at a particular location in the network, developing, based on the data, a lineage for a process associated with the network activity and, based on the lineage, identifying an anomaly within the network.Type: GrantFiled: June 2, 2016Date of Patent: October 8, 2019Assignee: CISCO TECHNOLOGY, INC.Inventors: Khawar Deen, Navindra Yadav, Anubhav Gupta, Shashidhar Gandham, Rohit Chandra Prasad, Abhishek Ranjan Singh, Shih-Chun Chang
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Publication number: 20190266204Abstract: A method for determining the significance of a document, or a portion thereof, is disclosed. Accordingly a search engine, or some other application, analyzes user associated content portions of a document to determine a relevance score for the document (e.g. Curation Rank). The particular algorithm for determining the relevance score will vary depending upon the particular implementation, but may generally be based upon an analysis of the number and quality of user associated content portions, comments, ratings of the user's themselves, and the ratings of users contributing to interactions (e.g. sharing) with the content portions. Based on this analysis, the document is assigned a relevance score which is used for ranking the document in accordance with instructions associated with a search query. E.g. the document relevance score may be used in selecting and ordering documents returned in search results for a particular search query.Type: ApplicationFiled: May 8, 2019Publication date: August 29, 2019Inventor: Rohit Chandra
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Publication number: 20190253330Abstract: Systems, methods, and computer-readable media for hierarchichal sharding of flows from sensors to collectors. A first collector can receive a first portion of a network flow from a first capturing agent and determine that a second portion of the network flow was not received from the first capturing agent. The first collector can then send the first portion of the network flow to a second collector. A third collector can receive the second portion of the network flow from a second capturing agent and determine that the third collector did not receive the first portion of the network flow. The third collector can then send the second portion of the network flow to the second collector. The second collector can then aggregate the first portion and second portion of the network flow to yield the entire portion of the network flow.Type: ApplicationFiled: April 24, 2019Publication date: August 15, 2019Inventors: Shashidhar Gandham, Rohit Chandra Prasad, Abhishek Ranjan Singh, Navindra Yadav, Khawar Deen, Varun Sagar Malhotra
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Publication number: 20190235732Abstract: A method, apparatus, and system for enabling a user to selectively make one or more highlights in a currently displayed document on a mobile, handheld, eBook reader, or similar device are disclosed. The user-generated highlights are persistent over user-initiated cursor control activities as well as persistent over reading sessions. Furthermore, the highlighting functionality can be invoked without downloading and installing any custom software components, and without explicitly generating a user account.Type: ApplicationFiled: March 14, 2019Publication date: August 1, 2019Inventor: ROHIT CHANDRA
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Publication number: 20190227681Abstract: A method, system, and service—using conventional web browsers with no software installation—for enabling a user to select portions of content are disclosed. The user selected portions of content, or references to them, are stored in a repository and are made available for subsequent viewing to a potentially larger universe of users. Neither group: the users selecting the portions of content, nor the users viewing the previously selected portions of content, need to install any special software to avail all these benefits.Type: ApplicationFiled: April 3, 2019Publication date: July 25, 2019Inventor: ROHIT CHANDRA
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Patent number: 10320630Abstract: Systems, methods, and computer-readable media for hierarchichal sharding of flows from sensors to collectors. A first collector can receive a first portion of a network flow from a first capturing agent and determine that a second portion of the network flow was not received from the first capturing agent. The first collector can then send the first portion of the network flow to a second collector. A third collector can receive the second portion of the network flow from a second capturing agent and determine that the third collector did not receive the first portion of the network flow. The third collector can then send the second portion of the network flow to the second collector. The second collector can then aggregate the first portion and second portion of the network flow to yield the entire portion of the network flow.Type: GrantFiled: June 2, 2016Date of Patent: June 11, 2019Assignee: CISCO TECHNOLOGY, INC.Inventors: Shashidhar Gandham, Rohit Chandra Prasad, Abhishek Ranjan Singh, Navindra Yadav, Khawar Deen, Varun Sagar Malhotra
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Patent number: 10289294Abstract: A method and system for enabling the display of user selected content-portions of internet documents that have been selected by users of a content-portion selection service are disclosed. Accordingly, a content-portion selection service includes a web portal with a web page providing users with a snippet of code, which, when inserted into an internet document, causes the internet document to display selected content-portions from the content-portion selection service. The snippet of code can be configured to query the content-portion selection service for selected content-portions that were made by certain users, or, selection content-portions made on documents from certain domains, and so forth. The code associated with the user interface object displaying the selected content-portions can be configured to periodically query the content-portion selection service to retrieve up-to-date content-portion selections, thereby dynamically changing the content-portions appearing on a web page or internet document.Type: GrantFiled: February 12, 2016Date of Patent: May 14, 2019Inventor: Rohit Chandra
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Publication number: 20190080348Abstract: A system and method enable exploration of cold ads in an online information system. Cold ads are ads that are new to the system and do not yet have reliable click through rate (CTR) estimates or click probabilities. The method and system selectively boost the click probabilities of cold ads to increase their likelihood of participating in and winning an auction so that the cold ad get more impressions, but without adversely affecting revenue in a production environment when cold ads are introduced.Type: ApplicationFiled: September 12, 2017Publication date: March 14, 2019Applicant: Yahoo Holdings, Inc.Inventors: Parikshit SHAH, Ming YANG, Sachidanand ALLE, Adwait RATNAPARKHI, Ben SHAHSHAHANI, Rohit CHANDRA
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Publication number: 20190081959Abstract: An example method includes detecting, using sensors, packets throughout a datacenter. The sensors can then send packet logs to various collectors which can then identify and summarize data flows in the datacenter. The collectors can then send flow logs to an analytics module which can identify the status of the datacenter and detect an attack.Type: ApplicationFiled: November 2, 2018Publication date: March 14, 2019Inventors: Navindra Yadav, Abhishek Ranjan Singh, Shashidhar Gandham, Ellen Christine Scheib, Omid Madani, Ali Parandehgheibi, Jackson Ngoc Ki Pang, Vimalkumar Jeyakumar, Michael Standish Watts, Hoang Viet Nguyen, Khawar Deen, Rohit Chandra Prasad, Sunil Kumar Gupta, Supreeth Hosur Nagesh Rao, Anubhav Gupta, Ashutosh Kulshreshtha, Roberto Fernando Spadaro, Hai Trong Vu, Varun Sagar Malhotra, Shih-Chun Chang, Bharathwaj Sankara Viswanathan, FNU Rachita Agasthy, Duane Thomas Barlow
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Patent number: 10181987Abstract: Systems, methods, and computer-readable media for collector high availability. In some embodiments, a system receives, from a first collector device, a first data report generated by a capturing agent deployed on a host system in a network. The system can also receive, from a second collector device, a second data report generated by the capturing agent deployed on the host system. The first and second data reports can include traffic data captured at the host system by the capturing agent during a period of time. The system can determine that the first data report and the second data report are both associated with the capturing agent, and identify duplicate data contained in the first data report and the second data report. The system can then deduplicate the first and second data reports to yield a deduplicated data report.Type: GrantFiled: June 2, 2016Date of Patent: January 15, 2019Assignee: CISCO TECHNOLOGY, INC.Inventors: Shashidhar Gandham, Rohit Chandra Prasad, Abhishek Ranjan Singh, Navindra Yadav, Khawar Deen, Varun Sagar Malhotra
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Patent number: 10142353Abstract: An example method includes detecting, using sensors, packets throughout a datacenter. The sensors can then send packet logs to various collectors which can then identify and summarize data flows in the datacenter. The collectors can then send flow logs to an analytics module which can identify the status of the datacenter and detect an attack.Type: GrantFiled: April 20, 2016Date of Patent: November 27, 2018Assignee: CISCO TECHNOLOGY, INC.Inventors: Navindra Yadav, Abhishek Ranjan Singh, Shashidhar Gandham, Ellen Christine Scheib, Omid Madani, Ali Parandehgheibi, Jackson Ngoc Ki Pang, Vimalkumar Jeyakumar, Michael Standish Watts, Hoang Viet Nguyen, Khawar Deen, Rohit Chandra Prasad, Sunil Kumar Gupta, Supreeth Hosur Nagesh Rao, Anubhav Gupta, Ashutosh Kulshreshtha, Roberto Fernando Spadaro, Hai Trong Vu, Varun Sagar Malhotra, Shih-Chun Chang, Bharathwaj Sankara Viswanathan, Fnu Rachita Agasthy, Duane Thomas Barlow
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Publication number: 20180336581Abstract: A marketplace diagnostics framework for analyzing and managing online marketplaces.Type: ApplicationFiled: July 26, 2018Publication date: November 22, 2018Inventors: Tarun BHATIA, Prasad CHALASANI, Rohit CHANDRA
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Publication number: 20180248844Abstract: The technologies described herein identify multiple electronic devices belonging to the same group. A computer system receives, from network accessing applications of a plurality of electronic devices, internet protocol (IP) trajectory information about the network accessing applications via a network. The IP trajectory information includes a user identifier, a list of IP addresses associated with each of the network accessing applications, and timestamps specifying times each of the network accessing applications accesses the network. The computer system identifies and removes commercial IP addresses from the list of IP addresses, analyzes IP trajectory information to retrieve a most commonly used IP address for each of the network accessing applications during a certain period, and determines that different network accessing applications belong to the same group if the most commonly used IP addresses for the different network accessing applications are the same.Type: ApplicationFiled: December 28, 2017Publication date: August 30, 2018Applicant: Yahoo Holdings, Inc.Inventors: Hao Cheng, Rohit Chandra, Jimmy Yang
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Patent number: 10037540Abstract: A marketplace diagnostics framework for analyzing and managing online marketplaces.Type: GrantFiled: November 9, 2015Date of Patent: July 31, 2018Assignee: OATH INC.Inventors: Tarun Bhatia, Prasad Chalasani, Rohit Chandra
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Patent number: 9935851Abstract: Systems, methods, and computer-readable media for determining sensor placement and topology. In some embodiments, a system can receive messages from sensors deployed around a network, each of the messages reporting a respective flow captured by a reporting sensor from the sensors. Next, the system can identify flows reported in the messages and, for each of the flows, generate a respective list of sensors that reported that flow. Based on the respective list of sensors, the system can infer a respective placement of the sensors within the network and a topology of the sensors. For example, the system can determine that a first sensor is deployed in a virtual machine, a second sensor is deployed in a hypervisor hosting the virtual machine, and a third sensor is deployed in a network device configured to route traffic associated with the hypervisor.Type: GrantFiled: May 11, 2016Date of Patent: April 3, 2018Assignee: CISCO TECHNOLOGY, INC.Inventors: Shashidhar Gandham, Rohit Chandra Prasad, Ashutosh Kulshreshtha, Supreeth Hosur Nagesh Rao, Khawar Deen, Navindra Yadav
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Patent number: 9864999Abstract: The technologies described herein identify multiple electronic devices belonging to the same group. A computer system receives, from network accessing applications of a plurality of electronic devices, internet protocol (IP) trajectory information about the network accessing applications via a network. The IP trajectory information includes a user identifier, a list of IP addresses associated with each of the network accessing applications, and timestamps specifying times each of the network accessing applications accesses the network. The computer system identifies and removes commercial IP addresses from the list of IP addresses, analyzes IP trajectory information to retrieve a most commonly used IP address for each of the network accessing applications during a certain period, and determines that different network accessing applications belong to the same group if the most commonly used IP addresses for the different network accessing applications are the same.Type: GrantFiled: April 30, 2015Date of Patent: January 9, 2018Assignee: YAHOO HOLDINGS, INC.Inventors: Hao Cheng, Rohit Chandra, Jimmy Yang
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Publication number: 20170109369Abstract: Methods and apparatus for managing file distribution between publishing and subscribing devices are provided. At a transporter system, a publish request for publishing a version of the dataset is received from a publisher device, wherein the publish request has a predefined format that includes an identity of the dataset, an identity of the version of the dataset, and an identity of a location for the version of the dataset. The transporter system updates a registry to associate the dataset with the identity of the dataset, version, and location, and the transporter system automatically publishes the dataset to any subscribers devices that have previously sent subscribe requests for such dataset to the transporter system.Type: ApplicationFiled: October 26, 2016Publication date: April 20, 2017Inventors: Andrew An FENG, Rohit CHANDRA, Lakshmanan SURYANARAYANAN, Timothy R. CROWDER, Victor J. LAM