Patents Assigned to Tata Consultancy Services, Ltd.
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Patent number: 8775814Abstract: A system and a method for providing a personalized biometric identification system to facilitate in securing critical transactions have been disclosed. The system includes a server which captures pre-designated biometric prints of a user, personalizes them and registers them on a bio print reader, owned by the user, over a unidirectional non-Internet based channel. The system overcomes the challenges involved in employing biometrics as a part of non-repudiation process for authorizing Internet based critical transactions for multiple entities by assuring the safety of the biometric prints of the users and eliminating additional hardware requirements.Type: GrantFiled: August 28, 2012Date of Patent: July 8, 2014Assignee: Tata Consultancy Services Ltd.Inventor: Prasanna Bidare
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Patent number: 8691173Abstract: The invention relates to a composition for treatment of water comprising rice husk ash and at least one bactericidal agent bonded to the rice husk ash. The bactericidal agent bonded to the rice husk ash is preferably silver and more particularly the bactericidal agent is nano silver. The invention also relates to a method of water purification using a composition comprising rice husk ash and at least one bactericidal agent bonded to the rice husk ash.Type: GrantFiled: December 8, 2008Date of Patent: April 8, 2014Assignee: Tata Consultancy Services Ltd.Inventors: Kalyan Kumar Das, Chetan Premkumar Malhotra
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Patent number: 8670563Abstract: A system and method for facilitating secure client server communication using elliptical curve cryptography and certificateless public key infrastructure has been disclosed. The system includes a secret key generation means which generates a secret key of m-bits based on the elliptic curve diffie hellman algorithm. The system further includes a session key generation means which makes use of said secret key and elliptic curve diffie hellman algorithm to generate a session key. The session key is used to facilitate secured communication between the client and the server.Type: GrantFiled: December 8, 2010Date of Patent: March 11, 2014Assignee: Tata Consultancy Services Ltd.Inventor: Vijayarangan Natarajan
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Patent number: 8649508Abstract: A system and method for implementing the Elliptic Curve scalar multiplication method in cryptography, where the Double Base Number System is expressed in decreasing order of exponents and further on using it to determine Elliptic curve scalar multiplication over a finite elliptic curve.Type: GrantFiled: September 29, 2008Date of Patent: February 11, 2014Assignee: Tata Consultancy Services Ltd.Inventor: Natarajan Vijayarangan
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Patent number: 8650627Abstract: A system and method for providing challenge-response solutions to authenticate a user have been provided. The system includes web server comprising interlinking means adapted to interlink a plurality of images with unique index values such that each of the images has a unique index value. The web server includes registration means adapted to enable users to select at least two interlinked images for the purpose of registration. The web server includes challenge generation means adapted to generate, transmit an authentication challenge of the form of one-time equation. The web server, prior to transmitting the one-time equation, computes the value of the equation based on at least the sequence specified by the user. The web server compares the value calculated by the user with the value calculated prior to transmission and authenticates the user only in the event that said value calculated by the user is equivalent to the stored value.Type: GrantFiled: March 1, 2012Date of Patent: February 11, 2014Assignee: Tata Consultancy Services Ltd.Inventor: Prasanna Bidare
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Publication number: 20130179954Abstract: A computer implemented system and method for providing users with secured access to application servers have been disclosed. The system and method envisaged by the present disclosure are not restricted to providing users with secured access to application servers. The system and the method also ensure that transactions performed by the users through the application servers remain secured and hack-resistant. The present disclosure envisages a system that acts as a secured, trusted gateway between the users and the application servers associated with providers of sensitive services such as banking and financial institutions. In case of the system envisaged by the present disclosure, rather than directly accessing an application server, users are made to contact the system of the disclosure and upon verification of their respective identities, are allowed to access the application servers associated with providers of sensitive services.Type: ApplicationFiled: December 15, 2012Publication date: July 11, 2013Applicant: TATA CONSULTANCY SERVICES LTD.Inventor: TATA CONSULTANCY SERVICES LTD.
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Patent number: 8447330Abstract: A system and method for wireless location estimation of a mobile node using radio transceivers with polarization diversity have been disclosed. The system includes a plurality of pre-defined fixed reference nodes distributed over a predetermined area adapted to transmit fixed reference signals. The system further includes mobile node transmission module at the mobile node adapted to transmit mobile reference signals with respect the mobile node and plurality of pre-defined fixed reference nodes. The horizontal polarization module and vertical polarization module polarize the transmitted mobile reference signals and the strength of the signals is measured. The derivation module derives the range of the signals. Subsequently, a profile of the derived range with reference to the measured signal strength is created by the system. The system further employs a trilateration algorithm to determine localization of the node using the created profile, thereby providing the location estimation for the mobile node.Type: GrantFiled: April 25, 2012Date of Patent: May 21, 2013Assignee: Tata Consultancy Services Ltd.Inventors: Tapas Chakravarty, Chethan Puttanna Konanakera, Prabha Janardan, Mariswamy Girish Chandra, Balamuralidhar Purushothaman
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Patent number: 8407762Abstract: A system and method for three level authentication of a user has been disclosed. The system 100 performs three level authentication: first level being selection of at least one predefined image from a plurality of images including decoy images; second level being selection of at least one predefined tile in the tiled version of the selected images to generate a transaction key; and the third level being entering a transaction key generated after first and second level are successfully completed, which is used for final account login and grant of transaction rights. The authentication is done on user's computing node 110 by communicating with authentication server 102 for first and second level authentication and the transaction key for third level authentication being generated by transaction key generating server 124 and transmitted on to user's computing node.Type: GrantFiled: October 29, 2010Date of Patent: March 26, 2013Assignee: Tata Consultancy Services Ltd.Inventor: Prasanna Bidare
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Patent number: 8386994Abstract: The invention disclosed relates to the field of requirement specification in application development. This invention provides a system for business process automation which can generate an executable optimized requirements set by capturing the requirements from the users and processing them to create prototypes. Feedback is obtained from external users on the played prototypes to correct and enhance the requirements to obtain an optimized, complete, correct and consistent requirements set. This helps in the successful development of business application with minimal errors in a very short time.Type: GrantFiled: July 20, 2009Date of Patent: February 26, 2013Assignee: Tata Consultancy Services Ltd.Inventors: Ghaisas Smita Subash, Ramanathan Venkatesh
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Patent number: 8320665Abstract: A system and a method for document image segmentation have been disclosed. Image segments are obtained by forming different clusters in a document image. The document image may include images of company logos, product marks or trademarks. The invention can perform image segmentation on any kind of complex colored image and can recognize logos, product-marks or trademarks which comprise text or graphics, wherein the text can be either of uniform font style or uneven font style such as fancy font styles, calligraphic styles or having different orientation.Type: GrantFiled: April 1, 2010Date of Patent: November 27, 2012Assignee: Tata Consultancy Services Ltd.Inventors: Jeff Puneet, Ghosh Hiranmay, Khare Ashish
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Patent number: 8311787Abstract: A system and a method for analyzing and simulating a die swell and flow profile in polymer melt extrusion through a die. The system includes a mesh generator to generate a computational mesh; a pre-processor to obtain die parameters, boundary conditions, polymer melt parameters including rheological characterization and constitutive equations and to generate an input file; a simulator to receive the input file from the pre-processor and process the input data to simulate die swell; a mesh corrector means to analyze the die swell obtained from the simulator and to correct the motion of the computational mesh and polymer melt to converge the die swell; a post-processor to visualize the die swell and flow profiles for the polymer melt; and a database means to store the die swell corresponding to the die, mesh and polymer melt parameters.Type: GrantFiled: February 19, 2009Date of Patent: November 13, 2012Assignee: Tata Consultancy Services Ltd.Inventors: Vivek Ganvir, Gautham Purushottham Basavarsu, Lele Ashish, Thaokar Rochish
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Patent number: 8275125Abstract: A system and method for designing a secure hash function is provided. Both of which have been designed for secure hash functionality, Secure Hash Algorithm (SHA-3) using pre processing (MP) methods and to help reduce hash collisions. It is a one way hash function which is a combination of message pre-processing which is a bijective function and the cipher block chaining mode (CBC).Type: GrantFiled: July 29, 2008Date of Patent: September 25, 2012Assignee: Tata Consultancy Services LtdInventor: Natarajan Vijayarangan
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Publication number: 20120166175Abstract: A method and system for construction and rendering of annotations associated with an electronic image is disclosed. The system comprises a first data repository for storing the electronic image, which has a plurality of pixels, with one or more pixels annotated at a plurality of levels, which contain descriptive characteristics of the pixel, in ascending magnitude, such that the descriptive characteristics at a subsequent level are with reference to descriptive characteristics of one or more pixels surrounding the pixel. The system comprises a second data repository for storing the annotations. An image display module is configured to display the electronic image. A pixel and level identification module is configured to receive pixel and level selection details from a user-interface. An annotation retrieval module is configured to retrieve annotations corresponding to the pixel and level selection from the second repository and renders the retrieved annotations for the electronic image.Type: ApplicationFiled: December 21, 2011Publication date: June 28, 2012Applicant: Tata Consultancy Services Ltd.Inventor: Sunil Kumar Kopparapu
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System and apparatus for evaluating the reliability of a watermarking technique for a video sequence
Patent number: 8189856Abstract: A system and apparatus for evaluating the reliability of a watermarking technique for a video sequence, said system and apparatus comprising: a) a calibrating means adapted to calibrate said system and apparatus using a test original video sequence and a test attacked video sequence in compliance with predetermined degrees of quality; b) an attacking means adapted to attack embedded watermark in said video sequence, said attack selected from a group of attacks; and c) an evaluating means including a comparator means for comparing the test original video sequence with test attacked video sequence and the watermark in the test original video sequence with the watermark in the test attacked video sequence to evaluate the reliability of a watermarking technique to give a reliability score.Type: GrantFiled: February 5, 2008Date of Patent: May 29, 2012Assignee: Tata Consultancy Services Ltd.Inventors: Chattopadhyay Tanushyam Sibnath, Pal Arpan Dipak Kumar -
Publication number: 20120103915Abstract: A method of purifying arsenic contaminated water is disclosed. The method comprises of adding to the arsenic contaminated water predetermined quantities of iron and alkali; and passing the water so obtained through a filter medium including rice husk ash. A device for purification of arsenic contaminated water is also disclosed.Type: ApplicationFiled: March 23, 2010Publication date: May 3, 2012Applicant: TATA CONSULTANCY SERVICES LTD.Inventor: Kalyan Kumar Das
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Patent number: 8066828Abstract: A method for heat treatment of steel and a system thereof is provided. First the steel is austenitized at a suitable temperature and then the temperature is rapidly brought down to the austempering temperature. Here the cyclic austempering is carried out between two austempering temperatures by modulating the temperature with controlled heating and cooling and the controlled temperature modulation is obtained by controlling the temperature-time profile in a batch furnace or by controlling the zone temperatures in a continuous furnace. This method of cyclic austempering reduces the austempering time, reduces the energy consumption and emissions, enhances the productivity and reduces the process cost.Type: GrantFiled: August 1, 2008Date of Patent: November 29, 2011Assignees: Tata Consultancy Services, Ltd., Illinois Institute of TechnologyInventors: Philip Nash, Vivekanand Sista, Satyam Sahay
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Patent number: 7853012Abstract: An authentication system and a method for signing data are disclosed. The system uses a hardware software partitioned approach. In its implementation the system of the invention compares favourably with performance and other parameters with a complete hardware or full software implementation. Particularly, advantageously there is a reduced gate count. Also as disclosed in the invention the system makes it difficult for hackers to attack the system using simple power analysis.Type: GrantFiled: April 21, 2006Date of Patent: December 14, 2010Assignee: Tata Consultancy Services, Ltd.Inventors: Aravamuthan Sarangarajan, Thumparthy Viswanatha Rao, Rajiah Murugesh, Narasimhachar Srinidhi, Gundeboina Sreenaiah
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Patent number: 7743046Abstract: A precision information collating device is disclosed. The device comprises means for inputting keywords and key phrases and defining level of traverse for establishing interlinks and interdependencies between keywords and key phrases entered and using previously stored interlinks and interdependencies to form a map. The device facilitates searching for keywords and key phrases and filtering out unwanted results, indexing, rating and posting of the result obtained and means for browsing the result.Type: GrantFiled: April 18, 2006Date of Patent: June 22, 2010Assignee: Tata Consultancy Services LtdInventors: Kumar Anand, Nori Kesav Vithal, Mandaleeka Guru Prasada Lakshmi Narayana
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Publication number: 20100070952Abstract: A system for automation of processes in a working environment to achieve targeted deliverables, said system comprising: mapping means adapted to map discrete processes in a working environment; reader means adapted to read human instructions in relation to targeted deliverables at mapped discrete processes; interpreter means adapted to interpret said read instructions into a machine readable instruction format; compiler means adapted to compile said machine readable instruction format into a pre-defined operating system executable instruction format; packager means adapted to classify and package said operating system executable instruction format in a pre-defined format; and installer means adapted to install and deploy said packaged format in said working environment to complete the automation process and achieve targeted deliverables.Type: ApplicationFiled: June 24, 2009Publication date: March 18, 2010Applicant: TATA CONSULTANCY SERVICES LTD.Inventors: Kumar ANAND, Nori Kesav VITHAL, Reddy Nitin KUNDA
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Patent number: 7334223Abstract: Method for automatically migrating power builder application to an open architecture is disclosed. The method includes converting to ASCII character format stream, parsing the stream to form constructs, generating a model from the constructs, analyzing the model and building trees in the model in the power builder format. The apparatus of the invention includes a schema of trees, one set, representing trees in the power builder format and another set in the selected open architecture format and a set of mappings defining correspondence between the two sets. Trees in one set are transformed into the other and attached in the model. An Unparser is provided having a class generator which generates classes including a global variable class in the open architecture and the classes are filled with the help of the parser and a model traverser by querying and responses thereto.Type: GrantFiled: January 18, 2005Date of Patent: February 19, 2008Assignee: Tata Consultancy Services, Ltd.Inventors: Shrawan Kumar, Arun Gajanan Bahulkar, Anita Pramod Nanadikar, Pavan Sabharwal