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).
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Patent number: 10438812Abstract: 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: GrantFiled: March 30, 2017Date of Patent: October 8, 2019Assignee: Intel CorporationInventors: Jeremy D. Ecton, Changhua Liu, Arnab Roy, Oscar U. Ojeda, Timothy A. White, Nicholas S. Haehn
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Publication number: 20190304912Abstract: Embodiments include a package structure with one or more layers of dielectric material, where an interconnect bridge substrate is embedded within the dielectric material. One or more via structures are on a first surface of the embedded substrate, where individual ones of the via structures comprise a conductive material and have a tapered profile. The conductive material is also on a sidewall of the embedded substrate.Type: ApplicationFiled: March 27, 2018Publication date: October 3, 2019Applicant: INTEL CORPORATIONInventors: Jeremy D. Ecton, Hiroki Tanaka, Oscar Ojeda, Arnab Roy, Vahidreza Parichehreh, Leonel R. Arana, Chung Kwang Tan, Robert A. May
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Publication number: 20190304890Abstract: Disclosed herein are via-trace structures with improved alignment, and related package substrates, packages, and computing device. For example, in some embodiments, a package substrate may include a conductive trace, and a conductive via in contact with the conductive trace. The alignment offset between the conductive trace and the conductive via may be less than 10 microns, and conductive trace may have a bell-shaped cross-section or the conductive via may have a flared shape.Type: ApplicationFiled: April 2, 2018Publication date: October 3, 2019Applicant: Intel CorporationInventors: Jeremy Ecton, Hiroki Tanaka, Kristof Kuwawi Darmawikarta, Oscar Ojeda, Arnab Roy, Nicholas Haehn
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Patent number: 10397803Abstract: A cellular communications network may be configured to leverage a millimeter wave (mmW) mesh network. Base stations may be configured to operate as mmW base stations (tnBs). Such base stations may be configured to participate in the mmW mesh network and to access the cellular communications network (e.g., via cellular access links). A network device of the cellular communications network (e.g., an eNB) may operate as a control entity with respect to one or more niBs. Such a network device may govern mesh backhaul routing with respect to the cellular communications network and the mmW mesh network. Such a network device may configure the mmW mesh network, for example by performing a process to join a new mB to the mmW mesh network. A WTRU may send and receive control information via a cellular access fink and may send and receive data via the mmW mesh network.Type: GrantFiled: May 10, 2013Date of Patent: August 27, 2019Assignee: IDAC Holdings, Inc.Inventors: Onur Sahin, Samian Kaur, Philip J. Pietraski, Ravikumar V. Pragada, Douglas R. Castor, Arnab Roy
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Patent number: 10382992Abstract: Techniques may be used for interference measurement and management in directional mesh networks, including centralized and/or distributed approaches. A centralized node, such as an operations and maintenance (OAM) center, may use feedback from nodes in the mesh network to partition the nodes in the mesh network into clusters based on interference levels. Interference measurement reports may be used by the centralized node to update cluster membership. An initiating node in the mesh network may use topographical information to generate an initial interference cluster, and interference measurement frame (IMF) scheduling information may be used to schedule transmissions within the interference clusters. Techniques for opportunistic measurement campaigns, simultaneous measurement campaigns, link failure detection, and link re-acquisition in directional mesh networks may also be used.Type: GrantFiled: February 5, 2014Date of Patent: August 13, 2019Assignee: IDAC HOLDINGS, INC.Inventors: Onur Sahin, Arnab Roy, Yugeswar Deenoo, Ravikumar V. Pragada, Philip J. Pietraski, Joseph S. Levy, Tao Deng
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Publication number: 20190215133Abstract: Systems, procedures, and instrumentalities are disclosed providing mixed data services such as mixed URLLC and eMBB services. In one example implementation, hierarchical modulation is dynamically configured and/or applied to provide the mixed services. The dynamic configuration and application of hierarchical modulation may be based on the respective priorities of the services and a condition of the concerned wireless network. The provision of the mixed services may utilize polar coding techniques. Control information may be mixed with data associated with the services.Type: ApplicationFiled: July 5, 2016Publication date: July 11, 2019Applicant: IDAC Holdings, Inc.Inventors: Kyle Jung-Lin Pan, Arnab Roy, Mohamed Abou El Seoud, Fengjun Xi, Kevin T. Wanuga, William E. Lawton, Janet A. Stern-Berkowitz
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Publication number: 20190214272Abstract: A method of anisotropic etching comprises forming a metal layer above a substrate. A mask layer is formed on the metal layer with openings defined in the mask layer to expose portions of the metal layer. The exposed portions of the metal layer are introduced to an active etchant solution that includes nanoparticles as an insoluble banking agent. In further embodiments, the exposed portions of the metal layer are introduced to a magnetic and/or an electrical field.Type: ApplicationFiled: January 11, 2018Publication date: July 11, 2019Inventors: Jeremy ECTON, Leonel ARANA, Nicholas S. HAEHN, Hsin-Wei WANG, Oscar OJEDA, Arnab ROY
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Publication number: 20190207752Abstract: A method of secure hash table implementation includes performing a secret key exchange between a server enclave of a server device and a client enclave of a client device and establishing an encrypted channel between the server enclave and the client enclave using the exchanged secret keys. The method includes generating a random key for a keyed hash function or a pseudo random function (PRF) and communicating the random key to the client enclave. The method includes receiving hashes of input data at the server enclave. The method includes building a hash table based on key-value pairs included in the received hashes. The method includes receiving a hash table query that includes keys. The method includes retrieving values that correspond to the keys. The method includes returning the retrieved values that correspond to the keys or a null if a value has not been inserted into the hash table for one of the keys.Type: ApplicationFiled: December 28, 2017Publication date: July 4, 2019Applicant: FUJITSU LIMITEDInventors: Avradip MANDAL, Arnab ROY, Hart MONTGOMERY, John C. MITCHELL
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Patent number: 10321347Abstract: Methods and apparatus are described. A long term evolution (LTE) base station includes a processor and a transceiver, which transmit first LTE data to a wireless transmit/receive unit (WTRU) using LTE frequencies. The LTE data is at a time defined by LTE transmission time interval (TTI) boundaries. The processor maps an LTE class of second LTE data to an access class associated with IEEE 802.11e access and transmits the second LTE data to the WTRU using an IEEE 802.11 associated frequency. A transmission time of the second LTE data is based on an LTE TTI boundary after sensing that an IEEE 802.11 associated frequency is not busy.Type: GrantFiled: September 1, 2017Date of Patent: June 11, 2019Assignee: InterDigital Patent Holdings, Inc.Inventors: Ravikumar V. Pragada, Samian Kaur, Douglas R. Castor, Philip J. Pietraski, Arnab Roy
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Publication number: 20190165890Abstract: Latency reduction by fast forward (FF) in multi-hop communication device and/or systems is disclosed. Packets may be received and forwarded using a codeword (CW)-based approach with and/or without per-CW CRC. A FF session may have a flow ID and packets may have sequence numbers. Packets targeted for FF may be divided into independently decodable CWs that may be transmitted in the next hop, for example, as soon as the destination is determined without waiting for an entire packet's arrival and/or for CRC verification. Low latency (e.g. FF) traffic may be indicated. CW-based FF may be extensible for an e2e RAN path from a WTRU to the last access node in a RAN. Intermediate metrics, a packet CRC and/or a per-CW CRC may be utilized for data integrity. HARQ and/or CW retransmission procedures may be implemented between network nodes for error handling.Type: ApplicationFiled: July 1, 2017Publication date: May 30, 2019Applicant: IDAC Holdings, Inc.Inventors: Philip J. Pietraski, Arnab Roy, Kyle Jung-Lin Pan, Alpaslan Demir, Muhammad U. Fazili, William E. Lawton, Mohamed Abou El Seoud, Kevin T. Wanuga, Ravikumar V. Pragada
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Publication number: 20190090162Abstract: 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: ApplicationFiled: November 15, 2018Publication date: March 21, 2019Applicant: INTERDIGITAL PATENT HOLDINGS, INC.Inventors: Arnab Roy, Yugeswar Deenoo, Ravikumar V. Pragada
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Publication number: 20190081790Abstract: 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: ApplicationFiled: September 8, 2017Publication date: March 14, 2019Applicant: FUJITSU LIMITEDInventors: Avradip MANDAL, Arnab ROY, Hart MONTGOMERY
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Publication number: 20190081785Abstract: 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: ApplicationFiled: September 8, 2017Publication date: March 14, 2019Applicant: FUJITSU LIMITEDInventors: Avradip MANDAL, Arnab ROY, Hart MONTGOMERY
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Patent number: 10228932Abstract: 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: GrantFiled: May 27, 2016Date of Patent: March 12, 2019Assignee: Oracle International CorporationInventors: Ozer Ozdemir, Tevfik Sinan Ingec, Tufan Erdinc, Arnab Roy, Mike Durran
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Publication number: 20190028156Abstract: 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: ApplicationFiled: September 24, 2018Publication date: January 24, 2019Applicant: INTERDIGITAL PATENT HOLDINGS, INC.Inventors: Steven FERRANTE, Arnab ROY, Philip J. PIETRASKI, Ravikumar V. PRAGADA
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Patent number: 10187840Abstract: 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: GrantFiled: February 6, 2014Date of Patent: January 22, 2019Assignee: IDAC HOLDINGS, INC.Inventors: Ravikumar V. Pragada, Yugeswar Deenoo, Onur Sahin, Arnab Roy, Philip J. Pietraski
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Publication number: 20180349729Abstract: 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: ApplicationFiled: June 2, 2017Publication date: December 6, 2018Inventors: Avradip MANDAL, Arnab ROY, Hart MONTGOMERY, Nilanjan DATTA
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Patent number: 10129028Abstract: 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: GrantFiled: February 10, 2016Date of Patent: November 13, 2018Assignee: FUJITSU LIMITEDInventors: Ryota Kamakari, Takeshi Shimoyama, Hiroshi Tsuda, Yoshinori Yaginuma, Avradip Mandal, Arnab Roy, Hart Montgomery, Toshiyuki Ishiguro, Kouhei Shigeta
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Publication number: 20180300502Abstract: 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: ApplicationFiled: April 13, 2017Publication date: October 18, 2018Applicant: FUJITSU LIMITEDInventors: Avradip MANDAL, Arnab ROY, Hart MONTGOMERY, John C. MITCHELL
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Publication number: 20180286700Abstract: 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: ApplicationFiled: March 30, 2017Publication date: October 4, 2018Applicant: INTEL CORPORATIONInventors: Jeremy D. Ecton, Changhua Liu, Arnab Roy, Oscar U. Ojeda, Timothy A. White, Nicholas S. Haehn