Patents Assigned to Tata Consultancy Services Limited
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Patent number: 11353574Abstract: This disclosure relates generally to tracking motion of target in indoor environment. The method includes estimating an initial position of the target in a mesh grid form based on radar data captured from radar devices installed in the indoor environment. For a subsequent target movement, a subsequent position of the target is estimated in the mesh grid form based on the initial position and a resultant velocity vector of the target. A number of outlier grid-points is computed with a threshold number, and based on comparison the outlier grid-points are either replaced with interpolated grid-points or the subsequent position of the target is repaired based on a probable position of the target obtained from at least one of a linear regression based analysis of prior positions of the target, prior knowledge of the target velocity and sampling interval, and a trilateration based technique.Type: GrantFiled: January 29, 2020Date of Patent: June 7, 2022Assignee: Tata Consultancy Services LimitedInventors: Rajat Kumar Das, Arijit Chowdhury, Tapas Chakravarty, Arpan Pal
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Patent number: 11354339Abstract: A method and system for clustering users using cognitive stress report for classifying stress levels is provided. Detection and monitoring of cognitive stress experienced by users while performing a task is very crucial. The method includes receiving, user evaluated cognitive stress reports and the physiological signals of the user during the performance of the task. A normalized cognitive report is generated from the user evaluated cognitive stress report by computing mode and range value. The normalized cognitive stress reports of the users are used to cluster the users into a primary cluster and a secondary cluster. Feature sets are extracted from the physiological signals of the said users associated with the primary cluster. Using the said feature sets a classifier model is trained to classify the cognitive stress levels of the users as stressful class or stressless class.Type: GrantFiled: July 9, 2019Date of Patent: June 7, 2022Assignee: TATA CONSULTANCY SERVICES LIMITEDInventors: Deepan Das, Shreyasi Datta, Tanuka Bhattacharjee, Anirban Dutta Choudhury, Arpan Pal
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Patent number: 11352701Abstract: This disclosure relates to a method for obtaining superhydrophobic corrosion-resistant coatings. State-of-the-art approaches involve etching methods with elevated temperatures and/or longer duration which are complex and use high concentration of combination of acids, alkali, and salt solutions in etching process to obtain a roughness which makes it difficult to handle usage of chemicals and controlling process. The method of the present disclosure has addressed this issue by selection of optimum concentrations of combinations of one or more type of acids, oxidizing agents which are safe, easy to handle and provide better control over the process. The method of the present disclosure is easy, inexpensive, and environmentally friendly. The superhydrophobic corrosion-resistant coatings possess water contact angles greater than 151° and coating efficiency more than 85 percent arrived at by using corrosion currents from polarization studies.Type: GrantFiled: February 16, 2021Date of Patent: June 7, 2022Assignee: Tata Consultancy Services LimitedInventors: Pallavi Bandi, Venkata Muralidhar Kanamarlapudi, Shankar Balajirao Kausley, Beena Rai
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Patent number: 11354105Abstract: Conventional methods for application development are rigid, complex, costly and ineffective in implementing new and changing technologies. The embodiments herein provide a model driven system and method for development of micro service applications. A set of user interface components and one or more domain components for a plurality of micro services designs of a plurality of applications pertaining to one or more technologies are modeled and validated. Further, a plurality of codes are generated according to the one or more modeled domain components of the plurality of micro services designs of the plurality of applications satisfying one or more requirements. The plurality of generated codes are further customized and validated to ensure design and code consistency. The plurality of customized codes are further containerized to provide a plurality of containerized applications which are deployed into a target deployment environment for execution using a plurality of configuration files.Type: GrantFiled: December 11, 2020Date of Patent: June 7, 2022Assignee: Tata Consultancy Services LimitedInventors: Subbarao Siram, Ashutosh Damodar Sabde, Yugesh Avadhanula, Jyoti Joshi
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Patent number: 11354531Abstract: This disclosure relates to system and method for enabling a robot to perceive and detect socially interacting groups. Various known systems have limited accuracy due to prevalent rule-driven methods. In case of few data-driven learning methods, they lack datasets with varied conditions of light, occlusion, and backgrounds. The disclosed method and system detect the formation of a social group of people, or, f-formation in real-time in a given scene. The system also detects outliers in the process, i.e., people who are visible but not part of the interacting group. This plays a key role in correct f-formation detection in a real-life crowded environment. Additionally, when a collocated robot plans to join the group it has to detect a pose for itself along with detecting the formation. Thus, the system provides the approach angle for the robot, which can help it to determine the final pose in a socially acceptable manner.Type: GrantFiled: December 30, 2020Date of Patent: June 7, 2022Assignee: TATA CONSULTANCY SERVICES LIMITEDInventors: Hrishav Bakul Barua, Pradip Pramanick, Chayan Sarkar
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Patent number: 11350851Abstract: The present disclosure provides wearable apparatus and method for calculating drift-free plantar pressure parameters for gait monitoring of an individual. Most conventional techniques use different kind of sensors placed in in-sole based wearable apparatus but are costly and not effective in calculating accurate plantar pressure parameters. The disclosed wearable apparatus uses off-the shelf piezoelectric sensors that are widely available in market with less cost. The drift-free plantar pressure parameters are calculated using drift-free static pressure data obtained by numerically integrating acquired dynamic sensor data from the piezoelectric sensors, using a LiTCEM correction mechanism. A 6-DOF Inertial Measurement Unit (IMU sensor) helps in isolating zero-pressure duration indicating when a foot of the individual is in air during a stride, while obtaining the drift-free static pressure data.Type: GrantFiled: March 24, 2020Date of Patent: June 7, 2022Assignee: Tata Consultancy Services LimitedInventors: Vivek Chandel, Shivam Singhal, Avik Ghose
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Patent number: 11354549Abstract: This disclosure relates generally to a system and method to identify various products on a plurality of images of various shelves of a retail store to facilitate compliance with respect to planograms. Planogram is a visual plan, which designates the placement of products on shelves and merchandising display fixtures of a retail store. Planograms are used to create consistency between store locations, to provide proper shelf space allocation, to improve visual merchandising appeal, and to create product-pairing suggestions. There are a few assumptions considering one instance per product class is available beforehand and the physical dimension of each product template is available in some suitable unit of length. In case of absence of physical dimension of the products, a context information of the retail store will be used. The context information is that the products of similar shapes or classes are arranged together in the shelves for consumers' convenience.Type: GrantFiled: July 14, 2020Date of Patent: June 7, 2022Assignee: Tata Consultancy Services LimitedInventors: Avishek Kumar Shaw, Rajashree Ramakrishnan, Shilpa Yadukumar Rao, Pranoy Hari, Dipti Prasad Mukherjee, Bikash Santra
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Publication number: 20220171925Abstract: State of the art systems used for text processing fail to differentiate between domain terms and noise terms that form a major part of enterprise and social media data. The disclosure herein generally relates to text processing, and, more particularly, to segregating domain words and noise terms from the text. The system processes input data and classifies words as dictionary words and non-dictionary words. The system processes the dictionary words and non-dictionary words and identifies domain terms and noise terms. The system then corrects the words identified as the noise terms.Type: ApplicationFiled: September 14, 2021Publication date: June 2, 2022Applicant: Tata Consultancy Services LimitedInventors: Gargi ROY, Lipika DEY, Mohammad SHAKIR
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Patent number: 11348693Abstract: This disclosure relates generally to method and system for graph convolution based gene prioritization on heterogeneous networks. The method includes obtaining a set of entities for human rare diseases from one or more sources containing rare diseases, genes, phenotypes for rare diseases and biological pathways and constructing an initial heterogeneous network using each of an entity from the set of entities. the initial heterogeneous network applying Graph Convolution-based Association Scoring (GCAS) to the initial heterogeneous network to derive inferred associations and creating a Heterogeneous Association Network for Rare Diseases (HANRD) by adding the inferred associations to the initial heterogeneous network and generating a prioritized set of genes for an input query being received in the HANRD.Type: GrantFiled: April 8, 2019Date of Patent: May 31, 2022Assignee: Tata Consultancy Services LimitedInventors: Thomas Joseph, Aditya Rao, Naveen Sivadasan, Saipradeep Govindakrishnan Vangala, Sujatha Kotte, Rajgopal Srinivasan
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Patent number: 11348048Abstract: A method and a system for pre-emptive deviation detection for a telecom process flow using digital twin. The proposed method and system pre-emptively detects critical failures in the telecom process flow even before they occur by pre-emptively detecting deviations based on digital twin. The proposed pre-emptive deviation is dynamically detected based on digital twin wherein, a simulated digital twin of telecom process flow is compared with a simulated predicted telecom process flow. Further based on pre-emptively detected deviation, notifications are displayed to execute preventive measures to ensure critical failures are avoided.Type: GrantFiled: February 22, 2019Date of Patent: May 31, 2022Assignee: TATA CONSULTANCY SERVICES LIMITEDInventors: Kaustav Bhattacharya, Sankaranarayanan Viswanathan, Senthilvelan Natarajan, Arunkumar Sekar
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Patent number: 11338224Abstract: This disclosure relates generally to phase separation, and more particularly, to a apparatus and a method for phase separation. In one example, the apparatus includes a spiral shaped body, split outlets and an adjustable splitter. The spiral shaped body includes an inlet portion to receive a mixture of phases associated with distinct effective masses, an outlet portion, and multiple helical turns stacked between the inlet and outlet portion. A portion of helical turns are twisted to form a twisted portion having opposite walls of a preceding helical turn turned relative to one another in opposite directions. The split outlets are configured at walls of the preceding helical turn to withdraw the phases based on an effective mass of said phases. The adjustable splitter is movably configured at least a portion of a cross section of the spiral shaped body to facilitate separate withdrawal of the one or more phases of the mixture.Type: GrantFiled: January 15, 2018Date of Patent: May 24, 2022Assignee: Tata Consultancy Services LimitedInventors: Sivakumar Subramanian, Arjun Kumar Pukkella, Raviraju Vysyaraju
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Patent number: 11340863Abstract: Audio based transactions are getting more popular and are envisaged to become common in years to come. With the rise in data protection regulations, muting portions of the audio files is necessary to hide sensitive information from an eavesdropper or accidental hearing by an entity who gets unauthorized access to these audio files. However, it is realized that deleted transaction information in a muted audio files make audit of the transaction challenging and impossible. Embodiments of the present disclosure provide systems and methods of muting audio information in multimedia files and retrieval thereof which is masked and further allows for reconstruction of the original audio conversation or restoration Private to an Entity (P2aE) information without original audio reconstruction when auditing is being exercised.Type: GrantFiled: February 26, 2020Date of Patent: May 24, 2022Assignee: Tata Consultancy Services LimitedInventors: Sunil Kumar Kopparapu, Ashish Panda
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Patent number: 11341033Abstract: A method and system for automated generation of test scenarios and automation scripts. The system is configured to record details of the application at micro level (page level), index based on the page navigation. The system is further configured to create a mind map or a tree using a traverse algorithm. This creates the necessary test scenarios based on flows or page navigation. At the same time, the system captures all the underlying screen properties and labels. The system connects the field type to the action library (built in) and also ensures a dataset is created while capturing the recording. Further utilizing the test scenarios, the dataset, and the screen properties, the system generates the automation script automatically.Type: GrantFiled: March 23, 2021Date of Patent: May 24, 2022Assignee: TATA CONSULTANCY SERVICES LIMITEDInventors: Vasantha Priya Mohankumar, Harish Iyer, Vishwas Mandpe
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Patent number: 11343100Abstract: Authentication is a key procedure in information systems. Conventional biometric authentication system is based on a trusted third-party server which is not secure. The present disclosure provides a privacy preserving multifactor biometric authentication for authenticating a client without the third-party authentication server. The server receives a plurality of encrypted biometric features from the client, encrypted using Fully Homomorphic Encryption. Further, the server evaluates the plurality of encrypted biometric features to obtain a client identifier value and a plurality of encrypted resultant values. The server encrypts each of the plurality of resultant values based on a time based nonce and the client identifier value. The encrypted authentication tags and the corresponding resultant values are aggregated by the server and transmitted to the client. The client decrypts the resultant value and the authentication tag and transmits to the server.Type: GrantFiled: February 24, 2021Date of Patent: May 24, 2022Assignee: TATA CONSULTANCY SERVICES LIMITEDInventors: Harika Narumanchi, Nitesh Emmadi, Imtiyazuddin Shaik, Srinivasa Rao Chalamala, Rajan Mindigal Alasingara Bhattachar
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Publication number: 20220154958Abstract: This disclosure relates generally to method and system for maximizing space utilization in a building. Due to current pandemic scenario many organizations eventually need to plan for the return of employees to office space ensuring biosafety. The challenge of maximizing the office space utilization ensuring occupants biosafety and comfort thereby minimizing HVAC energy consumption is necessary. The method utilizes two heuristic approaches for determining maximum allowable occupants placement in the open plan space using an optimal occupant placement technique. This minimizes the HVAC energy if the actual count is lesser than the possible maximum occupants can be placed which further optimizes energy using a joint actuator control technique. Additionally, the proposed two heuristic approaches improve space utilization for the infection rate ensuring bio safety.Type: ApplicationFiled: March 9, 2021Publication date: May 19, 2022Applicant: Tata Consultancy Services LimitedInventors: Praveen MANOHARAN, Srinarayana NAGARATHINAM, Arunchandar VASAN, Venkata Ramakrishna PADULLAPARTHI
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Publication number: 20220156674Abstract: An auction-based bid generation technique is a NP-hard problem and is not suitable for real-time scheduling of multi-agents. The embodiments thus provide a system and method for scheduling a set of tasks among a plurality of agents. Herein, agents self-allocate tasks among themselves dynamically in a distributed fashion, following an ordered sequence of agent indexes. The motivation of following the ordered sequence of agent indexes is allowing each agent to select its best strategy once by exploiting the greedy characteristic of the agent. The preferred agent (based on the ordered sequence) self-allocates tasks among multiple based on the minimum L2 Norm between task attributes and agent attributes, results in a strategy. The strategy offered by a sequence needs to satisfy constraints. A heuristic reward function for each strategy is proposed. Based on these rewards, agents reach consensus by playing an exact potential game for scheduling tasks among the agents.Type: ApplicationFiled: March 2, 2021Publication date: May 19, 2022Applicant: Tata Consultancy Services LimitedInventors: Arup Kumar SADHU, Debojyoti CHAKRABORTY, Titas BERA
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Publication number: 20220156607Abstract: Session-based Recommendation (SR) is the task of recommending the next item based on previously recorded user interactions. However, most existing approaches for SR either rely on costly online interactions with real users (model-free approaches) or rely on potentially biased rule-based or data-driven user-behavior models (model-based approaches) for learning. This disclosure relates to a system and method for selecting session-based recommendation policies using historical recommendations and user feedback. Herein, the learning of recommendation policies given offline or batch data from old recommendation policies based on a Distributional Reinforcement Learning (DRL) based recommender system in the offline or batch-constrained setting without requiring access to a user-behavior model or real-interactions with the users.Type: ApplicationFiled: March 8, 2021Publication date: May 19, 2022Applicant: Tata Consultancy Services LimitedInventors: Diksha Garg, Pankaj Malhotra, Priyanka Gupta, Lovekesh Vig, Gautam Shroff
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Publication number: 20220157297Abstract: Automatic speech recognition techniques are implemented in resource constrained devices such as edge devices in internet of things where on-device speech recognition is required for low latency and privacy preservation. Existing neural network models for speech recognition have a large size and are not suitable for deployment in such devices. The present disclosure provides an architecture of a size constrained neural network and a method of training the size constrained neural network. The architecture of the size constrained neural network provides a way of increasing or decreasing number of feature blocks to achieve an accuracy-model size trade off. The method of training the size constrained neural network comprises creating a training dataset with short utterances and training the size constrained neural network with the training dataset to learn short term dependencies in the utterances. The trained size constrained neural network model is suitable for deployment in resource constrained devices.Type: ApplicationFiled: June 29, 2021Publication date: May 19, 2022Applicant: Tata Consultancy Services LimitedInventors: Swarnava Dey, Jeet Dutta
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Publication number: 20220157401Abstract: There is a demand for low-cost efficient robust method for mapping read sequences with genome variation graph in genomic study. This disclosure herein relates to a method and system for mapping read sequences with genome variation graph by constructing a subgraph using a novel combination of graph embedding and graph winnowing techniques. The system processes the obtained plurality of read sequences and a genome variation graph for constructing the subgraph by computing an embedding for the genome variation graph utilizing a graph embedding technique. Further, graph index is generated for the genome variation graph based on the embedding and the genome variation graph utilizing the graph winnowing technique. Then computes gapped alignment score for read sequence (r) with its corresponding subgraph. Thus, enables a reliable method for read sequence with accurate, memory efficient and scalable system for mapping read sequences with genome variation graph.Type: ApplicationFiled: March 13, 2020Publication date: May 19, 2022Applicant: Tata Consultancy Services LimitedInventors: Kavya Naga Sai VADDADI, Naveen SIVADASAN, Rajgopal SRINIVASAN
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Patent number: 11331047Abstract: Health signal monitoring using continuous wave microwave signals is often affected by phase wrapping and null point detection issues. The disclosure herein generally relates to health monitoring, and, more particularly, to a method and a monitoring system for health monitoring using Amplitude Modulated Continuous Wave (AMCW) microwave signals. In this design of the monitoring system, the AMCW microwave signal comprises of a carrier signal and a modulating signal. The modulating signal is used for measuring heart rate and breathing rate of a subject, while the carrier signal is used to tune antenna size in the monitoring system. As the probing wavelength and the antenna size are independent of each other in this design of the monitoring system, the probing wavelength can be adjusted such that effect of the phase wrapping can be minimized. The system addresses the null point measurement problem by quadrature modulating the modulating signal.Type: GrantFiled: February 25, 2019Date of Patent: May 17, 2022Assignee: TATA CONSULTANCY SERVICES LIMITEDInventors: Arijit Sinharay, Rajat Kumar Das, Sayan Seth