Patents by Inventor Arnab Roy

Arnab Roy 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: 20190090162
    Abstract: A station (STA) may include an antenna and a processor operatively coupled to the antenna. The antenna and the processor may be configured to receive a request message from an access point (AP). The request message may include identity information of one or more other STAs and an indication to perform measurements of the one or more other STAs. The antenna and the processor may be further configured to perform the measurements of the one or more STAs to determine a link metric associated with each STA of the one or more other STAs. The antenna and the processor may be further configured to send a reply message to the AP after the link metric associated with each STA of the one or more STAs is determined. The reply message may include results of the determination.
    Type: Application
    Filed: November 15, 2018
    Publication date: March 21, 2019
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Arnab Roy, Yugeswar Deenoo, Ravikumar V. Pragada
  • Publication number: 20190081790
    Abstract: A method may include obtaining a common reference string. The method may further include obtaining a first public key for a first party and a second public key for a second party. The method may also include obtaining a first encrypted message, the first encrypted message encrypted using the first public key. The method may further include obtaining a second encrypted message, the second encrypted message encrypted using the second public key. The method may also include obtaining a proof. The method may further include verifying, using the proof, the common reference string, the first public key, and the second public key, that a decryption of the first encrypted message and a decryption of the second encrypted message are equivalent without decrypting the first encrypted message and without decrypting the second encrypted message.
    Type: Application
    Filed: September 8, 2017
    Publication date: March 14, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Avradip MANDAL, Arnab ROY, Hart MONTGOMERY
  • Publication number: 20190081785
    Abstract: A method may include obtaining public keys for each user of a set of users, where each user is associated with a unique public key and a unique private key. The method may also include obtaining a designated set of users, where the designated set of users is a subset of the set of users. The method may additionally include generating, using the public keys, a digest associated with the designated set of users. The digest includes reduced data sets in a secure form, where each user of the set of users is associated with one of the reduced data sets that is indicative of whether the user is in the designated set of users, and the reduced data set is accessible using the private key of the user. The method may also include posting the digest to a location accessible from an electronic device of the user.
    Type: Application
    Filed: September 8, 2017
    Publication date: March 14, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Avradip MANDAL, Arnab ROY, Hart MONTGOMERY
  • Patent number: 10228932
    Abstract: An example method facilitates verifying behaviors, functionality, and user interface display screens of a post-upgrade software system by comparing output thereof with a pre-upgrade software system. The example method includes accepting a first signal from a user input device to identify, at least in part, a first set of pre-upgrade output data items from the pre-upgrade software system; accepting a second signal from a user input device to identify, at least in part, a second set of corresponding post-upgrade output data items from the post-upgrade software system; and performing a consistency validation check between corresponding output data items in the first set and the second set. Accordingly, output data items in an upgraded system are readily validated against a pre-upgrade system. Plugins, as part of an upgrade verification tool, may implement specific tests. This enables enterprise software customers to automate their on-premise upgrade validation processes and to choose tests.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: March 12, 2019
    Assignee: Oracle International Corporation
    Inventors: Ozer Ozdemir, Tevfik Sinan Ingec, Tufan Erdinc, Arnab Roy, Mike Durran
  • Publication number: 20190028156
    Abstract: A method and apparatus are disclosed for communication in a Millimeter Wave Hotspot (mmH) backhaul system which uses mesh nodes. A mmH mesh node may receive a control signal which includes a total number of available control slots. The mesh node may determine the number of iterations of a resource scheduling mechanism that can be made during the time period of all available control slots, based on the number of neighbor nodes for the mesh node. Further, the mesh node may receive control slot information, including information about traffic queues and priorities. The mesh node may then perform resource scheduling using the resource scheduling mechanism based on the currently received control slot information and control slot information received in previous iterations of resource scheduling. The mesh node may also adjust a preamble based on a time between a last packet transmission and a current packet transmission to a neighboring node.
    Type: Application
    Filed: September 24, 2018
    Publication date: January 24, 2019
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Steven FERRANTE, Arnab ROY, Philip J. PIETRASKI, Ravikumar V. PRAGADA
  • Patent number: 10187840
    Abstract: A method and apparatus for joint routing and distributed scheduling in a directional mesh network includes receiving feedback for multiple candidate paths from at least one neighbor node, Semi-static and instantaneous metrics are determined based upon the received feedback. Routing from a first node to a destination node is determined based upon the semi-static and instantaneous metrics, and a transmission is routed in accordance with the determined route from the first node to the destination node.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: January 22, 2019
    Assignee: IDAC HOLDINGS, INC.
    Inventors: Ravikumar V. Pragada, Yugeswar Deenoo, Onur Sahin, Arnab Roy, Philip J. Pietraski
  • Publication number: 20180349729
    Abstract: A method may include extracting feature-data from an image which includes location data that indicates multiple locations within the image and multiple feature vectors that each correspond to one of the multiple locations. Each feature vector may represent a feature of an object in the image. The method may include determining a feature-data plot based on relative positions of the multiple locations and selecting a grid for the feature-data plot. The method may include generating a first representative feature vector for a first cell of the grid based on a first feature vector set and generating a second representative feature vector for a second cell of the grid based on a second feature vector set. The method may include generating a single feature vector that represents the object in the image based on the first representative feature vector and the second representative feature vector and encrypting the single feature vector.
    Type: Application
    Filed: June 2, 2017
    Publication date: December 6, 2018
    Inventors: Avradip MANDAL, Arnab ROY, Hart MONTGOMERY, Nilanjan DATTA
  • Patent number: 10129028
    Abstract: A method of equality verification using relational encryption including receiving a relational key that includes a first relational key component and a registration ciphertext that includes an encryption of a first plaintext data set. The method includes storing the registration ciphertext without decrypting the registration ciphertext. After the storing of the registration ciphertext, the method includes receiving an authentication request and communicating a safeguard data set that includes a random challenge in response to the authentication request. The method includes receiving an encrypted response that is generated based on the safeguard data set and a second plaintext data set. The method includes verifying a relationship between the encrypted response and the registration ciphertext using the relational key without decrypting the encrypted response and without decrypting the registration ciphertext. The relationship indicates that equality exists between the first and the second plaintext data sets.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: November 13, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Ryota Kamakari, Takeshi Shimoyama, Hiroshi Tsuda, Yoshinori Yaginuma, Avradip Mandal, Arnab Roy, Hart Montgomery, Toshiyuki Ishiguro, Kouhei Shigeta
  • Publication number: 20180300502
    Abstract: An anonymization system may include a merger to merge a public database and a private database to create a merged database. The merged database may include multiple blank entries and multiple initial values associated with multiple user identifiers. The anonymization system may include a value generator to fill values for the blank entries via a machine learning algorithm and based on the initial values to create a filled database including the initial values and the fill values. The anonymization system may include a perturber to perturb one or more of the initial values or the fill values of the filled database to create a perturbed database. The anonymization system may include a releaser to release at least a portion of the perturbed database.
    Type: Application
    Filed: April 13, 2017
    Publication date: October 18, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Avradip MANDAL, Arnab ROY, Hart MONTGOMERY, John C. MITCHELL
  • Publication number: 20180286700
    Abstract: The systems and methods described herein use at least one etchant and at least one photochemically active material in conjunction with electromagnetic energy applied simultaneous with the etchant and photochemically active material during the etching process. The interaction between the electromagnetic energy and the photochemically active material preferentially increases the etch rate in a direction along the axis of incidence of the electromagnetic energy, thereby permitting the anisotropic formation of voids within the semiconductor substrate. These anisotropic voids may be more closely spaced (i.e., arranged on a tighter pitch) than the isotropic voids produced using conventional etching technologies. By placing the voids in the semiconductor substrate on a tighter pitch, greater component density may be achieved.
    Type: Application
    Filed: March 30, 2017
    Publication date: October 4, 2018
    Applicant: INTEL CORPORATION
    Inventors: Jeremy D. Ecton, Changhua Liu, Arnab Roy, Oscar U. Ojeda, Timothy A. White, Nicholas S. Haehn
  • Patent number: 10084515
    Abstract: A method and apparatus are disclosed for communication in a Millimeter Wave Hotspot (mmH) backhaul system which uses mesh nodes. A mmH mesh node may receive a control signal which includes a total number of available control slots. The mesh node may determine the number of iterations of a resource scheduling mechanism that can be made during the time period of all available control slots, based on the number of neighbor nodes for the mesh node. Further, the mesh node may receive control slot information, including information about traffic queues and priorities. The mesh node may then perform resource scheduling using the resource scheduling mechanism based on the currently received control slot information and control slot information received in previous iterations of resource scheduling. The mesh node may also adjust a preamble based on a time between a last packet transmission and a current packet transmission to a neighboring node.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: September 25, 2018
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Steven Ferrante, Arnab Roy, Philip J. Pietraski, Ravikumar V. Pragada
  • Publication number: 20180267789
    Abstract: A method may include generating, via a setup function, public parameters associated with a random updatable function. The method may further include generating, via an initialization function and based at least in part on the public parameters generated by the setup function, a first random element and a first state. The method may further include generating, via an update function and based at least in part on the public parameters generated by the setup function, a third random element and a second state. Inputs of the update function may include the first state generated by the initialization function and a second random element.
    Type: Application
    Filed: March 20, 2017
    Publication date: September 20, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Avradip MANDAL, Arnab ROY, Hart MONTGOMERY
  • Patent number: 10075301
    Abstract: A method of equality verification using relational encryption including receiving a relational key that includes a first relational key component and a registration ciphertext that includes an encryption of a first plaintext data set. The method includes storing the registration ciphertext without decrypting the registration ciphertext. After the storing of the registration ciphertext, the method includes receiving an authentication request and communicating a safeguard data set that includes a random challenge in response to the authentication request. The method includes receiving an encrypted response that is generated based on the safeguard data set and a second plaintext data set. The method includes verifying a relationship between the encrypted response and the registration ciphertext using the relational key without decrypting the encrypted response and without decrypting the registration ciphertext. The relationship indicates that equality exists between the first and the second plaintext data sets.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: September 11, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Avradip Mandal, Arnab Roy
  • Publication number: 20180213413
    Abstract: A wireless transmit/receive unit (WTRU) may receive a request to perform directional signal measurements for received signals. The WTRU may transmit, based on the request and position information associated with the WTRU, directional signal measurements to facilitate generation of a directional radio environment map (DREM). The WTRU may receive a request to switch beams based on the DREM.
    Type: Application
    Filed: March 23, 2018
    Publication date: July 26, 2018
    Applicant: IDAC Holdings, Inc.
    Inventors: Arnab Roy, Ravikumar V. Pragada, Philip J. Pietraski, Bharath Viswanathan
  • Patent number: 10033532
    Abstract: A method includes receiving a first biometric data set representative of a first biometric sample provided by a user and public parameters. The method includes generating a first set of exchange information based thereon and communicating it to a system server. The method includes receiving a second set of exchange information based on the public parameters and a second biometric data set representative of a second biometric sample and is symmetric with respect to the first set of exchange information. The method includes computing a session key for the communication session by applying a first hash function based on a hash key to a subset of the second set of exchange information and a second hash function based on a projected key to a subset of the first set of exchange information. The method includes using the session key in communications during the communication session.
    Type: Grant
    Filed: June 20, 2015
    Date of Patent: July 24, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Avradip Mandal, Hart Montgomery, Arnab Roy
  • Publication number: 20180206139
    Abstract: Systems and methods are provided for transmitting a relay search request frame from a source relay edge directional multigigabit (DMG) station STA (REDS) to the AP and receiving a relay search response frame including a list of at least a first and second relay DMG STA (RDS) in a wireless network. Systems and methods are further provided for transmitting over a first data stream through a direct link between the source REDS and the destination REDS, transmitting over a second data stream through the first RDS between the source REDS and the destination REDS, and transmitting over a third data stream through the second RDS between the source REDS and the destination REDS. Directional-band relay in wireless communications may be used in range extension where two wireless nodes may set up a relayed link without first forming a direct link between them.
    Type: Application
    Filed: July 8, 2016
    Publication date: July 19, 2018
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Xiaofei Wang, Guodong Zhang, Robert L. Olesen, Arnab Roy, Qian Zhang, Douglas R. Castor, Ravikumar V. Pragada
  • Patent number: 9967101
    Abstract: A method includes extracting a set of enrollment feature points from an enrollment biometric measurement. The method also includes randomly selecting one or more enrollment code words from an error correction code. The method also includes determining obfuscated enrollment feature point data describing an obfuscated version of the set of feature points that is obfuscated using the one or more enrollment code words. The method also includes determining obfuscated enrollment code word data describing an obfuscated version of the one or more enrollment code words that is obfuscated using a random enrollment polynomial. The method also includes determining an enrollment biometric template including the obfuscated enrollment feature point data and the obfuscated enrollment code word data. The method includes generating a public key based on the random enrollment polynomial that obfuscates the random enrollment polynomial.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: May 8, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Jesse Hartloff, Avradip Mandal, Arnab Roy
  • Patent number: 9961565
    Abstract: A wireless transmit/receive unit (WTRU) may receive a request to perform directional signal strength measurements and provide location data associated with the WTRU. The WTRU may transmit directional signal strength measurements, based on the request and the location data associated with the WTRU, to facilitate generation of a directional radio environment map (DREM). The WTRU may receive a request to switch to a new transmission and reception beam pair based on the DREM.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: May 1, 2018
    Assignee: IDAC Holdings, Inc.
    Inventors: Arnab Roy, Ravikumar V. Pragada, Philip J. Pietraski, Bharath Viswanathan
  • Publication number: 20180101846
    Abstract: A method of enabling digital currency transfers subject to a policy may include generating a master secret key and an associated master verification key. A raw selective secret key and an associated raw selective verification key may be generated. A first signature based on the policy and the raw selective verification key may be encrypted using the master secret key. A selective secret key may be generated based on the raw selective secret key. A selective verification key may be generated based on the policy and the first signature. A second signature based on a message and the policy may be encrypted using the selective secret key.
    Type: Application
    Filed: October 11, 2016
    Publication date: April 12, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Avradip MANDAL, Hart MONTGOMERY, Arnab ROY
  • Publication number: 20170373834
    Abstract: A method includes generating a secret key for encryption and decoding data. The method includes identifying a set of data in plaintext format. The method further includes converting, by a processing device, the data in plaintext format to ciphertext using a polynomial. The method also includes sending the ciphertext to a remote device for data processing, wherein the remote device is to process the ciphertext without having the secret key. The method includes receiving processed ciphertext from the remote device. The method further includes decoding, by the processing device, the processed ciphertext based on the secret key and the polynomial to yield processed plaintext. The method also includes outputting the processed plaintext.
    Type: Application
    Filed: June 27, 2016
    Publication date: December 28, 2017
    Inventors: Avradip MANDAL, Arnab ROY, Hart MONTGOMERY