Patents Assigned to Unisys Corporation
  • Patent number: 11899640
    Abstract: A processor-based method of building and appending data structures in a multi-host environment includes creating and storing data into a first data structure having a first root node, a first right leaf node and a plurality of other leaf nodes and non-leaf nodes defining multiple hierarchical levels; allowing a search of the first data structure to proceed while creating a second data structure that includes a second root node, a second left leaf node and a plurality of leaf nodes and non-leaf nodes defining multiple hierarchical levels; receiving a command to append the second data structure to the first data structure during searching the first data structure; creating a global lock for all hosts in the multi-host environment to the first root node and the first right leaf node of the first data structure while allowing access to the plurality of other leaf nodes and non-leaf nodes of the first data structure; updating the first root node and the first right leaf node with information about the second data
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: February 13, 2024
    Assignee: UNISYS CORPORATION
    Inventors: Kelsey L Bruso, James M Plasek
  • Patent number: 11836130
    Abstract: The present invention provides for employing SQL to introduce blockchain technologies into a relational database, and thereby leverage the inherent tamper-resistant properties of blockchain, without the need to completely rewrite existing or legacy relational database software. The invention creates a relational database inside of a blockchain and uses a conventional SQL interface for standard database operations. This reduces the burden of introducing blockchain technologies, while providing the benefits of the intrinsic security and verification features of blockchain technology. The invention provides a rich historical record of every transaction thereby greatly reducing, if not eliminating, the relational database's susceptibility to tampering. This allows for temporal queries on arbitrary records within the database and the generation of reports and audits for any point in the history of the database.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: December 5, 2023
    Assignee: Unisys Corporation
    Inventors: Devon Andrew Beckett, James David Fletcher, Max Hirsch, Vidya Mudalagiri Venkatesha, Alex George
  • Publication number: 20230350953
    Abstract: A processor-based method for securing meta-data through a persistent signature, comprising: identifying meta-data for a file; selecting a private key, a certificate identifier and a hash algorithm identifier for the meta-data; creating an encrypted hash of the meta-data using the hash algorithm and private key; and creating a persistent, independent signature for the meta-data that identifies the meta-data, certificate identifier, hash algorithm identifier, and the encrypted hash value for the meta-data.
    Type: Application
    Filed: May 2, 2022
    Publication date: November 2, 2023
    Applicant: Unisys Corporation
    Inventors: Kelsey L. Bruso, Brian A. Wegleitner, Michael T. Kain
  • Publication number: 20230353377
    Abstract: A processor-based method for securing files through a persistent signature includes: selecting a file of any file type; selecting a private key, a certificate identifier and a hash algorithm identifier for the file; creating an encrypted hash of the file using the hash algorithm and private key for the file; and creating a persistent, independent signature for each selected file that identifies the file, certificate identifier, hash algorithm identifier, and the encrypted hash value for the file.
    Type: Application
    Filed: May 2, 2022
    Publication date: November 2, 2023
    Applicant: Unisys Corporation
    Inventors: Kelsey L. Bruso, Brian A. Wegleitner, Michael T. Kain
  • Publication number: 20230353384
    Abstract: A processor-based method for verifying a secured file, directory, or meta-data, comprising: extracting a persistent, independent signature for a secured file, directory, or meta-data from a directory signature file, the signature identifying a certificate identifier, a hash algorithm identifier, and an encrypted hash value for that secured file, directory, or meta-data; retrieving a public key corresponding to the certificate identifier; decrypting the encrypted hash using the public key and a decryption tool, resulting in a clear text hash value; creating a new hash value for the secured file, directory, or meta-data, the hash creation corresponding to the hash algorithm identifier; and verifying the signature when the new hash value for the secured file, directory, or meta-data matches the unencrypted hash value from the persistent, independent signature for the secured file, directory, or meta-data,
    Type: Application
    Filed: May 2, 2022
    Publication date: November 2, 2023
    Applicant: Unisys Corporation
    Inventors: Kelsey L. Bruso, Brian A. Wegleitner, Michael T. Kain
  • Publication number: 20230353372
    Abstract: A processor-based method for securing directories through a persistent signature, comprising: selecting a directory; selecting a private key, a certificate identifier and a hash algorithm identifier for each selected directory; creating an encrypted hash of the directory using the hash algorithm and private key; and creating a persistent, independent signature for the directory that identifies the directory, certificate identifier, hash algorithm identifier, and the encrypted hash value for that directory.
    Type: Application
    Filed: May 2, 2022
    Publication date: November 2, 2023
    Applicant: Unisys Corporation
    Inventors: Kelsey L. Bruso, Brian A. Wegleitner, Michael T. Kain
  • Publication number: 20230353373
    Abstract: A processor-based method for creating a persistent directory signature file, comprising: selecting a private key, a certificate identifier and a hash algorithm identifier for the directory signature file; concatenating one or more persistent, independent signatures wherein a persistent independent signature includes a file name, sub-directory indicator, or meta-data indicator, and a certificate identifier, and a hash identifier, and an encrypted hash; creating an encrypted hash of the one or more concatenated signatures using the hash algorithm and private key chosen for the directory signature file; and concatenating the encrypted hash of the one or more concatenated signatures with the concatenated signatures and the certificate identifier, and hash algorithm identifier chosen for the directory signature file to create a persistent, independent signature for the directory signature file.
    Type: Application
    Filed: May 2, 2022
    Publication date: November 2, 2023
    Applicant: Unisys Corporation
    Inventors: Kelsey L Bruso, Brian A. Wegleitner, Michael T. Kain
  • Patent number: 11798251
    Abstract: Methods and systems for implementing an object identification system equipped to reduce the number of service calls for remote object identification lookups are disclosed. The object identification management server works to reduce the number of object identification requests, which overall improves the process of quickly and accurately providing object identifications when needed and without unnecessarily wasting computing resources. The object identification server can subsequently manage the number of identification requests by setting a tunable threshold, which allows a system to operate more efficiently and allocate computing resources accordingly.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: October 24, 2023
    Assignee: Unisys Corporation
    Inventors: James Plasek, Mark Rosno, Shardul Patil, Hayden Donze, Max Hirsch
  • Publication number: 20230315707
    Abstract: A processor-based method of creating a secondary index for a B-tree in a database includes creating an empty secondary index; traversing the B-tree to find the left most data page to begin processing; capturing the current system time; placing a read-lock on the data page; retrieving a first primary key value for the data page; writing the first primary key value to a control information for the B-tree; creating a secondary index entry and writing it into the secondary index; and releasing the read-lock.
    Type: Application
    Filed: March 31, 2022
    Publication date: October 5, 2023
    Applicant: Unisys Corporation
    Inventors: Kelsey L Bruso, James M. PIasek
  • Publication number: 20230315712
    Abstract: A processor-based method of making a file containing a secondary index recoverable during processing of the secondary index includes: capturing a current system time as a captured system time and writing the captured system time to control information; finding writes to the file containing the secondary index; also writing the writes to an audit trail; using the captured system time in control information for the secondary index as a start time for recovery; determining if there is a primary key value in the control information; using a primary key value in the control information to traverse to a data page continuing the primary key value; placing a read-lock on the data page; creating a corresponding secondary index entry; and releasing the read-lock.
    Type: Application
    Filed: March 31, 2022
    Publication date: October 5, 2023
    Applicant: Unisys Corporation
    Inventors: Kelsey L Bruso, James M. Plasek
  • Publication number: 20230315705
    Abstract: A processor-based method of creating a secondary index includes creating an empty secondary index; capturing the current system time; cloning the database to create a cloned database; writing to a file a secondary index column value and a primary key column value from rows in the cloned database that meet search criteria; populate the secondary index using sorted data; writing, periodically, a row number being processed from the file to control information for the B-tree; and clearing the row number.
    Type: Application
    Filed: March 31, 2022
    Publication date: October 5, 2023
    Applicant: Unisys Corporation
    Inventors: Kelsey L Bruso, James M. Plasek
  • Publication number: 20230315708
    Abstract: A processor-based method of updating a secondary index for a B-tree in a database in a DBMS to include subsequent changes that occurred during creation of the secondary index includes opening an audit trail and moving back in the audit trail to a captured system time; making the secondary index visible to the DBMS for INSERT, UPDATE and DELETE processing; reading a next committed set of database updates from the audit trail; creating a secondary index modification for each row on each audit trail update and applying it to the secondary index; clearing the captured system time from control information for the B-tree to indicate completion; and making the secondary index visible to the DBMS for all processing.
    Type: Application
    Filed: March 31, 2022
    Publication date: October 5, 2023
    Applicant: Unisys Corporation
    Inventors: Kelsey L Bruso, James M. Plasek
  • Patent number: 11729004
    Abstract: Methods and systems for remote dynamic isolation of IoT devices are provided. One system includes a first IoT device and a second IoT device configured with an active communication channel with the first IoT device and a role certificate. An operator device is configured to interact with a distributed ledger to issue and revoke role certificates for a plurality of devices including the first IoT device and the second IoT device. The first IoT device periodically validates a role certificate proof received from the second IoT device with an entry of the role certificate proof recorded on the distributed ledger.
    Type: Grant
    Filed: September 15, 2021
    Date of Patent: August 15, 2023
    Assignee: Unisys Corporation
    Inventors: Sanket Panchamia, Kanupriya Pandey, Mehdi Entezari, Sachin B Patil, Amith Kk, Robert A Johnson
  • Publication number: 20230177034
    Abstract: A processor-based method of grafting a scion data structure having a scion root page and scion left page to an understock data structure having an understock root page and an understock right page in a multi-host environment includes receiving a command to graft the scion data structure onto the understock data structure; preventing prefetching data belonging to the scion data structure into cache memory; locking the understock root page and the understock right page; grafting the scion data structure onto the right side of the understock data structure and not in the middle of the understock data structure; updating the understock root page to point to the scion root page and the understock right page to point to the scion left page; committing the update of the understock root page and the understock right page; releasing the lock to the understock root page and the understock right page; and sending updated copies of the understock root page and the understock right page to other hosts in a multi-host envi
    Type: Application
    Filed: December 6, 2021
    Publication date: June 8, 2023
    Applicant: Unisys Corporation
    Inventors: Kelsey L Bruso, James M. Plasek
  • Publication number: 20230177033
    Abstract: A processor-based method of building and appending data structures in a multi-host environment includes creating and storing data into a first data structure having a first root node, a first right leaf node and a plurality of other leaf nodes and non-leaf nodes defining multiple hierarchical levels; allowing a search of the first data structure to proceed while creating a second data structure that includes a second root node, a second left leaf node and a plurality of leaf nodes and non-leaf nodes defining multiple hierarchical levels; receiving a command to append the second data structure to the first data structure during searching the first data structure; creating a global lock for all hosts in the multi-host environment to the first root node and the first right leaf node of the first data structure while allowing access to the plurality of other leaf nodes and non-leaf nodes of the first data structure; updating the first root node and the first right leaf node with information about the second data
    Type: Application
    Filed: December 6, 2021
    Publication date: June 8, 2023
    Applicant: Unisys Corporation
    Inventors: Kelsey L Bruso, James M. Plasek
  • Patent number: 11663010
    Abstract: A system and method for a virtual processor base/virtual execution context arrangement. The disclosed arrangement utilizes chiplets comprising core logic and defined instruction sets. The chiplets are adapted to operate in conjunction with one or more active execution contexts to enable the execution of particular processes. In particular, the defined instruction sets includes a instructions for processor debugging. The system and method support the compartmentalization of such debugging instructions so as to provide enhanced processor and process security.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: May 30, 2023
    Assignee: UNISYS CORPORATION
    Inventors: Andrew Ward Beale, David Strong
  • Publication number: 20230154187
    Abstract: A method of decomposing a lecture into events includes: processing a recorded video and segmenting the video into video, chat, audio and audio transcript; processing the video and dividing it into discreet events including lecture, green board text, white board text, and interaction with users; and storing the discreet events as a storyboard that identifies break points in the lecture. The storyboard and events can be used to create a composed lecture.
    Type: Application
    Filed: November 12, 2021
    Publication date: May 18, 2023
    Applicant: Unisys Corporation
    Inventors: Kelsey L Bruso, Mangesh Walsatwar, Ramkumar M., George S.
  • Publication number: 20230087132
    Abstract: A method of creating action-trigger phrase sets includes receiving a document from a corpus of documents; processing text from the document; and creating an action-trigger phrase set from the text.
    Type: Application
    Filed: September 19, 2021
    Publication date: March 23, 2023
    Applicant: Unisys Corporation
    Inventors: Mark Rosno, Patrick Deziel, Christopher Korzenowski, Rebecca Bilbro, Kelsey L. Bruso, Robert Malek
  • Patent number: 11593079
    Abstract: A system and method for the storage within one or more virtual execution context registers private code representative of processes or other information requiring an enhanced degree of security. The storage of the private code can be performed as a function of the type of code or in response to one or more markers embedded within the code. The time-variant nature of the virtual execution context registers affords a high degree of inherent security for the private code data stored within.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: February 28, 2023
    Assignee: Unisys Corporation
    Inventors: Andrew Ward Beale, David Strong
  • Publication number: 20230034682
    Abstract: A method of improving a visual instruction during running of a visual instruction sequence includes playing a visual instruction sequence to a user from a point-of-view of the user; monitoring the user for user data related to the visual instruction sequence; using the user data to improve the visual instruction sequence; generating an improved visual instruction sequence; and playing the improved visual instruction sequence to the user from a point-of-view of the user. A system for improving a visual instruction during running of a visual instruction sequence includes a computer device for playing a visual instruction sequence to a user from a point-of-view of the user, monitoring the user for user data related to the visual instruction sequence, using the user data to improve the visual instruction sequence, generating an improved visual instruction sequence; and playing the improved visual instruction sequence to the user from a point-of-view of the user.
    Type: Application
    Filed: August 2, 2021
    Publication date: February 2, 2023
    Applicant: Unisys Corporation
    Inventors: Kelsey L. Bruso, James M. Plasek