Patents by Inventor Ayan Banerjee

Ayan Banerjee 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: 20190138806
    Abstract: Development of sensor data based descriptive and prescriptive system involves machine learning tasks like classification and regression. Any such system development requires the involvement of different stake-holders for obtaining features. Such features typically obtained are not interpretable for 1-D sensor signals. Embodiments of the present disclosure provide systems and methods that perform signal analysis for features extraction and interpretation thereof wherein input is raw signal data where origin of a feature is traced to signal data, and mapped to domain/application knowledge. Feature(s) are extracted using deep learning network(s) and machine learning (ML) model(s) are implemented for sensor data analysis to perform causality analysis for prognostics. Layer(s) (say last layer) of Deep Network(s) contains the automatically derived features that can be used for ML tasks.
    Type: Application
    Filed: February 21, 2018
    Publication date: May 9, 2019
    Applicant: Tata Consultancy Services Limited
    Inventors: Snehasis BANERJEE, Tanushyam CHATTOPADHYAY, Ayan MUKHERJEE
  • Patent number: 10284472
    Abstract: In one embodiment, a method includes receiving a request to add a prefix to memory for a route lookup at a forwarding device, the memory comprising a plurality of pivot tiles for storing pivot entries, each of the pivot entries comprising a plurality of prefixes and a pointer to a trie index, searching at the forwarding device, a dynamic pool of the pivot tiles based on a base-width associated with the prefix, allocating at least a portion of the pivot tile to the base-width and creating a pivot entry for the prefix and other prefixes with a corresponding base-width, and dynamically updating prefixes stored on the pivot tiles based on route changes to optimize storage of prefixes on the pivot tiles. An apparatus and logic are also disclosed herein.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: May 7, 2019
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Nataraj Bacthu, Ayan Banerjee, Raghava Sivaramu, Ankan Ghosh
  • Publication number: 20190109759
    Abstract: Disclosed are systems, methods, and computer-readable storage media for synchronizing the secondary vPC node to the primary vPC node in a BFD protocol over a VxLAN channel with a remote node. In some embodiments of the present technology a primary vPC node can receive a packet from the remote node. The primary vPC node can then determine the packet includes either a MAC address corresponding to the primary vPC node or a secondary vPC node, and at least one inner packet identifier. Additionally, the primary networking switch can identify an access control list (ACL) entry from a set of ACL entries based on the at least one inner packet identifier. Subsequently, based on the ACL entry, the primary vPC node can generate a copy of the packet. After which, the primary vPC node can transmit the packet to the secondary vPC node.
    Type: Application
    Filed: November 26, 2018
    Publication date: April 11, 2019
    Inventors: Vengada Prasad Govindan, Ayan Banerjee, Mehak Mahajan, Abhayraj Kuldip Gidwani, Mudigonda Jwala Mallik
  • Publication number: 20190104066
    Abstract: In one embodiment, longest prefix matching (LPM) operations are performed on a value in multiple interspersed prefix length search spaces to determine an overall longest prefix matching result in a packet switching system. A first LPM lookup unit performs a first LPM operation on the particular lookup value in a first search space finding a first longest matching prefix, and a second LPM lookup unit performs a second LPM operation on the particular lookup value in a second search space finding a second longest matching prefix. The longer of the first and second longest matching prefixes determines the overall LPM. In one embodiment, the first search space and the second search space include non-default route prefixes with interspersed prefix lengths matching a same value, such as, but not limited to the particular lookup value (e.g., a destination address of a packet).
    Type: Application
    Filed: October 3, 2017
    Publication date: April 4, 2019
    Applicant: Cisco Technology, Inc.
    Inventors: Venkata Naga Ramesh Ponnapalli, Ayan Banerjee, Raghava K. Sivaramu, Nataraj Bacthu
  • Patent number: 10250504
    Abstract: In one embodiment, longest prefix matching (LPM) operations are performed on a value in multiple interspersed prefix length search spaces to determine an overall longest prefix matching result in a packet switching system. A first LPM lookup unit performs a first LPM operation on the particular lookup value in a first search space finding a first longest matching prefix, and a second LPM lookup unit performs a second LPM operation on the particular lookup value in a second search space finding a second longest matching prefix. The longer of the first and second longest matching prefixes determines the overall LPM. In one embodiment, the first search space and the second search space include non-default route prefixes with interspersed prefix lengths matching a same value, such as, but not limited to the particular lookup value (e.g., a destination address of a packet).
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: April 2, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Venkata Naga Ramesh Ponnapalli, Ayan Banerjee, Raghava K Sivaramu, Nataraj Bacthu
  • Patent number: 10250399
    Abstract: In accordance with one example embodiment, a system configured for programming a network layer multicast address entry in a routing table of an ingress line card module is disclosed. The network layer multicast address entry includes a network layer address associated with at least one egress line card. The system is further configured for programming a data link layer multicast routing address entry in a routing table of a fabric card module in which the data link layer multicast routing address entry corresponds to the network layer multicast address entry.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: April 2, 2019
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Ayan Banerjee, Raghava K. Sivaramu, Srinivasan Ramabadran, Mehak Mahajan, Nataraj Bacthu
  • Publication number: 20190097839
    Abstract: Aspects of the disclosed technology address limitations relating to packet replication for multi-destination traffic, by providing methods for performing hardware-based replication in network infrastructure devices, such as switches. In some aspects, application specific integrated circuits (ASICs) resident in physical devices can be used to perform packet replication. Depending on implementation, a hardware-based replication process can include steps for receiving a first packet that includes a first outer header containing first address information, receiving a second packet including a second outer header containing a hardware replication flag, forwarding the first packet to all virtual tunnel endpoints (VTEPs) connected with the TOR switch, and performing hardware replication for the second packet based on the hardware replication flag to generate one or more unicast packets. Systems and machine readable media are also provided.
    Type: Application
    Filed: September 25, 2017
    Publication date: March 28, 2019
    Inventors: Swami Narayanan, Ambrish Mehta, Venkatesh Srinivasan, Raghava Sivaramu, Ayan Banerjee
  • Publication number: 20190020585
    Abstract: Systems, methods, and non-transitory computer-readable storage media for performing hierarchical routing are disclosed. The method includes identifying routes in a computer network and arranging those routes in two separate routing tables. The first routing table is stored on a first module and the second routing table is stored on a second module.
    Type: Application
    Filed: September 17, 2018
    Publication date: January 17, 2019
    Inventors: Ayan Banerjee, Ramana Mellacheruvu, Abhishek Saxena, Vishal Jain, Luca Cafiero
  • Patent number: 10142163
    Abstract: Disclosed are systems, methods, and computer-readable storage media for synchronizing the secondary vPC node to the primary vPC node in a BFD protocol over a VxLAN channel with a remote node. In some embodiments of the present technology a primary vPC node can receive a packet from the remote node. The primary vPC node can then determine the packet includes either a MAC address corresponding to the primary vPC node or a secondary vPC node, and at least one inner packet identifier. Additionally, the primary networking switch can identify an access control list (ACL) entry from a set of ACL entries based on the at least one inner packet identifier. Subsequently, based on the ACL entry, the primary vPC node can generate a copy of the packet. After which, the primary vPC node can transmit the packet to the secondary vPC node.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: November 27, 2018
    Assignee: CISCO TECHNOLOGY, INC
    Inventors: Vengada Prasad Govindan, Ayan Banerjee, Mehak Mahajan, Abhayraj Kuldip Gidwani, Mudigonda Jwala Mallik
  • Publication number: 20180301061
    Abstract: Systems and methods are described for facilitating non-verbal communication. An electronic processor receives data from the hand-gesture sensor indicative of one or more gestures performed by a user, determines at least one word or phrase corresponding to the data from the hand-gestures sensor, and outputs a text representation of the at least one word or phrase on the display screen. Some systems output the text representation as a natural language sentence based on the data from the hand-gesture sensor and linguistic prosody information determined based, at least in part, on image data of the user captured while performing the one or more gesture. Some systems also includes at least one brain sensor and generate an alternative natural language text sentence in response to detecting a signal from the brain sensor indicative of a contradiction response after displaying the natural language text sentence on the display screen.
    Type: Application
    Filed: April 13, 2018
    Publication date: October 18, 2018
    Inventors: Prajwal Paudyal, Ayan Banerjee, Sandeep Gupta
  • Publication number: 20180300487
    Abstract: A framework for measuring the security strength of bio-metric security systems against spoofing attacks considering the adversary's knowledge about the system is disclosed.
    Type: Application
    Filed: April 10, 2018
    Publication date: October 18, 2018
    Applicant: Arizona Board of Regents on Behalf of Arizona State University
    Inventors: Sandeep K.S. Gupta, Ayan Banerjee, Seyed Koosha Sadeghi Oskooyee, Mohammad Javad Sohankar Esfahani
  • Patent number: 10079761
    Abstract: Systems, methods, and non-transitory computer-readable storage media for performing hierarchical routing are disclosed. The method includes identifying routes in a computer network and arranging those routes in two separate routing tables. The first routing table is stored on a first module and the second routing table is stored on a second module.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: September 18, 2018
    Assignee: Cisco Technology, Inc.
    Inventors: Ayan Banerjee, Ramana Mellacheruvu, Abhishek Saxena, Vishal Jain, Luca Cafiero
  • Patent number: 10074028
    Abstract: Systems and methods are described for automatically identifying a food item. A color image and a thermal image are received by an electronic processor with a first food item in the field of view of both the color image and the thermal image. The electronic processor identifies a region of pixels in the color image that corresponds to the first food item based at least in part on a temperature intensity of the pixels in the identified region of pixels relative to other pixels in the thermal image. At least one feature is extracted from the identified region of pixels in the color image corresponding to the first food item and the electronic processor automatically identifies a type of food corresponding to the first food item based at least in part on the at least extracted feature.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: September 11, 2018
    Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY
    Inventors: Sandeep Gupta, Ayan Banerjee
  • Publication number: 20180212865
    Abstract: The proposed methodology enables finding the most efficient roots in the network to carry multicast traffic, while further providing a theoretical basis for such selection. It guarantees the minimum expected delivery cost for multicast frames in the absence of any knowledge about the source and receivers.
    Type: Application
    Filed: March 20, 2018
    Publication date: July 26, 2018
    Applicant: Cisco Technology, Inc.
    Inventors: Sourabh Jain, Varun Shah, Ayan Banerjee
  • Publication number: 20180212876
    Abstract: In one embodiment, a method includes receiving a request to add a prefix to memory for a route lookup at a forwarding device, the memory comprising a plurality of pivot tiles for storing pivot entries, each of the pivot entries comprising a plurality of prefixes and a pointer to a trie index, searching at the forwarding device, a dynamic pool of the pivot tiles based on a base-width associated with the prefix, allocating at least a portion of the pivot tile to the base-width and creating a pivot entry for the prefix and other prefixes with a corresponding base-width, and dynamically updating prefixes stored on the pivot tiles based on route changes to optimize storage of prefixes on the pivot tiles. An apparatus and logic are also disclosed herein.
    Type: Application
    Filed: January 24, 2017
    Publication date: July 26, 2018
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Nataraj Bacthu, Ayan Banerjee, Raghava Sivaramu, Ankan Ghosh
  • Publication number: 20180189678
    Abstract: A Brain-Mobile Interface (BMoI) system is provided. A control circuit is configured to execute a predictive model to generate a defined number of predicted signal features in future time based on a number of signal features extracted from a first type sensory data (e.g., electroencephalogram (EEG) data). A predicted future mental state(s) can thus be generated based on the number of predicted signal features and used to trigger a corresponding action(s) in a BMoI application(s). In a non-limiting example, a second type sensory data (e.g., electrocardiogram (ECG) data) can be used to improve accuracy of the predictive model. By using the predicted signal features to generate the predicted future mental state(s) to control the BMoI application(s), it is possible to duty-cycle the BMoI system to help reduce power consumption and processing latency, thus allowing the BMoI application(s) to operate in real-time with improved accuracy and power consumption.
    Type: Application
    Filed: December 29, 2017
    Publication date: July 5, 2018
    Applicant: Arizona Board of Regents on behalf of Arizona Stat e University
    Inventors: Sandeep Gupta, Ayan Banerjee, Mohammad Javad Sohankar Esfahani, Seyed Koosha Sadeghi Oskooyee
  • Patent number: 9992111
    Abstract: In one embodiment an approach is provided to efficiently program routes on line cards and fabric modules in a modular router to avoid hot spots and thus avoid undesirable packet loss. Each fabric module includes two separate processors or application specific integrated circuits (ASICs). In another embodiment, each fabric module processor is replaced by a pair of fabric module processors arranged in series with each other, and each processor is responsible for routing only, e.g., IPv4 or IPv6 traffic. The pair of fabric module processors communicates with one another via a trunk line and any packet received at either one of the pair is passed to the other of the pair before being passed back to a line card.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: June 5, 2018
    Assignee: Cisco Technology, Inc.
    Inventors: Ayan Banerjee, Raghava Sivaramu, Ambrish Mehta, Swaminathan Narayanan, Shiv Saini, Mehak Mahajan
  • Publication number: 20180103911
    Abstract: Methods and systems are described for sensing and recovery of a biological signal using generative-model-based compressive sensing. A transformation is applied to sparsify the quasi-periodic signal removing morphology parameters and leaving temporal parameters. The sparsified signal is sampled and the sampled signal data is transmitted to a base station. A homotopy recovery algorithm is applied to the received sampled signal data by the base station to recover the temporal parameters of the biological signal. Generative modelling is applied using previously captured morphology parameters to generate a reconstructed signal. Finally, the reconstructed signal is adjusted and scaled based on the recovered temporal parameters to provide a reconstructed signal that is diagnostically equivalent to the original biological signal.
    Type: Application
    Filed: October 18, 2017
    Publication date: April 19, 2018
    Inventors: Sandeep Gupta, Ayan Banerjee
  • Patent number: 9942127
    Abstract: The proposed methodology enables finding the most efficient roots in the network to carry multicast traffic, while further providing a theoretical basis for such selection. It guarantees the minimum expected delivery cost for multicast frames in the absence of any knowledge about the source and receivers.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: April 10, 2018
    Assignee: Cisco Technology, Inc.
    Inventors: Sourabh Jain, Varun Shah, Ayan Banerjee
  • Publication number: 20180048568
    Abstract: Various embodiments are disclosed for increasing Layer-3 LPM (longest prefix match) routing database in a network platform. In some embodiments, chipsets in fabric modules (FMs) can be partitioned into multiple banks. Network traffic can be directed towards a corresponding bank in the FMs by using a LPM table on a line card (LC). Entries in the LPM table on the LC can be programmed either statically or dynamically based upon LPM routes that are dynamically learned.
    Type: Application
    Filed: October 24, 2017
    Publication date: February 15, 2018
    Inventors: Ayan Banerjee, Sameer Merchant, Ramana Mellacheruvu, Ramesh V.N. Ponnapalli, Srinivasan Ramabadran