Search Patents
  • Method for debugging of analog and mixed-signal behavioral models during simulation
    Publication number: 20030018459
    Abstract: An improved method for debugging of analog and mixed signal behavioral models during simulation using Newton-Raphson iteration replay. The method according to the invention has substantially modified the prior art solution by limiting the interactive debugging steps in a replay of the last iteration of the accepted timepoints. Using this method, the user only interacts with the simulation during the iteration replay, and only for the accepted solution points. If the user is single stepping through this simulation, the simulator enters interactive mode at each statement during the replay. Similarly, if not single stepping, but a breakpoint has been triggered, the simulator enters the interactive mode at the appropriate statement to honor the breakpoint. While the iteration replay is performed, the system of equations does not need to be solved again. Instead, the solution vector is reinstated from the known solution of the last iteration.
    Type: Application
    Filed: June 20, 2001
    Publication date: January 23, 2003
    Inventors: Donald J. O' Riordan, Richard Trihy
  • Method for debugging of analog and mixed-signal behavioral models during simulation
    Patent number: 7085700
    Abstract: An improved method for debugging of analog and mixed signal behavioral models during simulation using Newton-Raphson iteration replay. The method according to the invention has substantially modified the prior art solution by limiting the interactive debugging steps in a replay of the last iteration of the accepted timepoints. Using this method, the user only interacts with the simulation during the iteration replay, and only for the accepted solution points. If the user is single stepping through this simulation, the simulator enters interactive mode at each statement during the replay. Similarly, if not single stepping, but a breakpoint has been triggered, the simulator enters the interactive mode at the appropriate statement to honor the breakpoint. While the iteration replay is performed, the system of equations does not need to be solved again. Instead, the solution vector is reinstated from the known solution of the last iteration.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: August 1, 2006
    Assignee: Cadence Design Systems, Inc.
    Inventors: Donald J. O'Riordan, Richard Trihy
  • SESSION MANAGEMENT OF CONTENT DRIVEN MEETING SUMMARIES, ACTION ITEMS, MEETING CONTEXT CONTINUITY, AND SEGMENT AUDIO-VIDEO (AV) REPLAY FOR COLLABORATION SOLUTIONS
    Publication number: 20220239516
    Abstract: A method for the session management of content driven meeting summaries and action items in a commercial environment, which may be tied to multiple back-end cloud services. The method employs an association based data structure directed to improving the organization and persistence of post-meeting generated content or collateral (e.g., meeting summaries, notes, action items, etc.). Further, a method for learned meeting context continuity for past context and future meeting proposals tied to current meeting context. The method may match key topics, conversations, and attendees to deduce relation; and, accordingly, provide suitable next meeting predictions. Moreover, a method for intelligently managing segment audio-visual (AV) replay access, which may be indexed using users, topics, presenters, keywords, etc.
    Type: Application
    Filed: January 22, 2021
    Publication date: July 28, 2022
    Inventors: Vivek Viswanathan Iyer, Loo Shing Tan, Ruizhi Joyce Lu, Mark John Law
  • Session management of content driven meeting summaries, action items, meeting context continuity, and segment audio-video (AV) replay for collaboration solutions
    Patent number: 11627009
    Abstract: A method for the session management of content driven meeting summaries and action items in a commercial environment, which may be tied to multiple back-end cloud services. The method employs an association based data structure directed to improving the organization and persistence of post-meeting generated content or collateral (e.g., meeting summaries, notes, action items, etc.). Further, a method for learned meeting context continuity for past context and future meeting proposals tied to current meeting context. The method may match key topics, conversations, and attendees to deduce relation; and, accordingly, provide suitable next meeting predictions. Moreover, a method for intelligently managing segment audio-visual (AV) replay access, which may be indexed using users, topics, presenters, keywords, etc.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: April 11, 2023
    Assignee: Dell Products L.P.
    Inventors: Vivek Viswanathan Iyer, Loo Shing Tan, Ruizhi Joyce Lu, Mark John Law
  • System and Method for Reproducing Device Program Execution
    Publication number: 20110078666
    Abstract: Provided are a system and method for precisely reproducing a device program execution, such as reproducing a software program executed on a computer for example. The method provides a solution to a class of diagnosis methods known as “record/replay” or “deterministic replay”, where information related to a program execution is recorded for later replay, often for diagnostic purposes to reproduce errors in device function such as software bugs and other anomalous behavior.
    Type: Application
    Filed: May 26, 2010
    Publication date: March 31, 2011
    Applicant: University of California
    Inventor: Gautam Altekar
  • State synchronization in recording and replaying computer programs
    Patent number: 7958497
    Abstract: Recording and replaying computer programs includes state synchronization and thread management techniques that facilitate accurately replaying the recorded execution of a multithreaded application program. State synchronization comprises, during execution of an application program in a computer system, detecting an operation of the application program to write a memory; preventing the operation to write the memory; storing a representation of the memory; permitting the operation to write the memory, resulting in written memory; comparing the written memory to the stored representation; and in response to determining that the written memory is different than the stored representation, generating a notification that a memory state synchronization exception occurred.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: June 7, 2011
    Assignee: Replay Solutions, Inc.
    Inventors: Jonathan Lindo, Jeffrey Daudel
  • Recording and replaying computer programs
    Patent number: 7506318
    Abstract: A method is disclosed for recording and replaying computer programs. In one embodiment, a method of modifying a computer program to support recording execution, comprises the computer-implemented steps of receiving an executable application binary; modifying the executable application binary by adding one or more proxy code elements to result in creating a modified application binary, wherein upon execution of the modified application binary, the one or more proxy code elements create and store recorded information representing all non-deterministic events that occur during the execution. For example, asynchronous callbacks and thread context switches are recorded and can be replayed.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: March 17, 2009
    Assignee: Replay Solutions, Inc.
    Inventors: Jonathan Lindo, Jeffrey Daudel
  • Detecting race conditions in computer programs
    Patent number: 7673181
    Abstract: Recording and replaying computer programs includes detecting whether a race condition exists among multiple threads of a multithreaded application program. In an embodiment, detecting race conditions comprises detecting and preventing an operation of a first thread of an application program to read or write a computer memory, wherein the application program executes a plurality of threads; storing an exception point representing a current location in an execution path of the application program; allowing the operation to read or write the memory; creating and storing a record identifying the memory, the first thread, and an index value for a location in the execution path; and determining, based on the record and a plurality of other similar records, whether a race condition exists at the exception point for the first thread and one or more other threads in the plurality of the threads.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: March 2, 2010
    Assignee: Replay Solutions, Inc.
    Inventors: Jonathan Lindo, Jeffrey Daudel
  • Advancing and rewinding a replayed program execution
    Patent number: 8079019
    Abstract: In an embodiment, a data processing system comprises a storage system coupled to a unit under test comprising a heap memory, a static memory and a stack; second logic operable to perform: detecting one or more changes in a first state of the heap memory and the static memory; storing, in the storage system, as a state point of the unit under test, the one or more changes in the first state of the heap memory and the static memory; third logic operable to perform: receiving a request to change the memory under test to a particular state point; in response to the request, loading the particular state point from the storage system and applying the state point to the heap memory and the static memory to result in changing the heap memory and the static memory to a second state that is substantially equivalent to the first state.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: December 13, 2011
    Assignee: Replay Solutions, Inc.
    Inventors: Jonathan Lindo, Jeffrey Daudel, Arpad Jakab, Suman Cherukuri
  • CONTENT DATA TRANSMISSION SYSTEM AND CONTENT DATA TRANSMISSION METHOD
    Publication number: 20140193134
    Abstract: [Problem] In a system that transmits content data from a content replay device to a content output device, to prevent a deterioration in audio quality or video data picture quality while being able to increase the simplicity of a setting-altering operation without requiring complicated signal processing.
    Type: Application
    Filed: July 27, 2012
    Publication date: July 10, 2014
    Applicant: D&M Holdings, Inc.
    Inventors: Koji Maeda, Masaichi Yoshida, Yuji Ota
  • METHOD AND SYSTEM FOR PROTECTING MEMORY INFORMATION IN A PLATFORM
    Publication number: 20140208109
    Abstract: A method and system to provide an effective, scalable and yet low-cost solution for Confidentiality, Integrity and Replay protection for sensitive information stored in a memory and prevent an attacker from observing and/or modifying the state of the system. In one embodiment of the invention, the system has strong hardware protection for its memory contents via XTS-tweak mode of encryption where the tweak is derived based on “Global and Local Counters”. This scheme offers to enable die-area efficient Replay protection for any sized memory by allowing multiple counter levels and facilitates using small counter-sizes to derive the “tweak” used in the XTS encryption without sacrificing cryptographic strength.
    Type: Application
    Filed: December 28, 2011
    Publication date: July 24, 2014
    Inventors: Alpa T. Narendra Trivedi, David M. Durham, Men Long, Siddhartha Chhabra, Uday R. Savagaonkar, Carlos V. Rozas
  • Content data transmission system and content data transmission method
    Patent number: 9154726
    Abstract: [Problem] In a system that transmits content data from a content replay device to a content output device, to prevent a deterioration in audio quality or video data picture quality while being able to increase the simplicity of a setting-altering operation without requiring complicated signal processing.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: October 6, 2015
    Assignee: D&M Holdings, Inc.
    Inventors: Koji Maeda, Masaichi Yoshida, Yuji Ota
  • Method and system for protecting memory information in a platform
    Patent number: 9092644
    Abstract: A method and system to provide an effective, scalable and yet low-cost solution for Confidentiality, Integrity and Replay protection for sensitive information stored in a memory and prevent an attacker from observing and/or modifying the state of the system. In one embodiment of the invention, the system has strong hardware protection for its memory contents via XTS-tweak mode of encryption where the tweak is derived based on “Global and Local Counters”. This scheme offers to enable die-area efficient Replay protection for any sized memory by allowing multiple counter levels and facilitates using small counter-sizes to derive the “tweak” used in the XTS encryption without sacrificing cryptographic strength.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: July 28, 2015
    Assignee: Intel Corporation
    Inventors: Alpa T. Narendra Trivedi, David M. Durham, Men Long, Siddhartha Chhabra, Uday R. Savagaonkar, Carlos V. Rozas
  • ADAPTIVE MULTI-STAGE SLACK BORROWING FOR HIGH PERFORMANCE ERROR RESILIENT COMPUTING
    Publication number: 20140035644
    Abstract: Adaptive scaling digital techniques attempt to place the system close to the timing failure so as to maximize energy efficiency. Rapid recovery from potential failures is usually by slowing the system clock and/or providing razor solutions (instruction replay.) These techniques compromise the throughput. This application presents a technique to provide local in-situ fault resilience based on dynamic slack borrowing. This technique is non-intrusive (needs no architecture modification) and has minimal impact on throughput.
    Type: Application
    Filed: October 3, 2013
    Publication date: February 6, 2014
    Applicants: STMicroelectronics SA, STMicroelectronics International N.V.
    Inventors: Chittoor PARTHASARATHY, Nitin CHAWLA, Kallol CHATTERJEE, Pascal URARD
  • ADAPTIVE MULTI-STAGE SLACK BORROWING FOR HIGH PERFORMANCE ERROR RESILIENT COMPUTING
    Publication number: 20120176173
    Abstract: Adaptive scaling digital techniques attempt to place the system close to the timing failure so as to maximize energy efficiency. Rapid recovery from potential failures is usually by slowing the system clock and/or providing razor solutions (instruction replay.) These techniques compromise the throughput. We present a technique to provide local in-situ fault resilience based on dynamic slack borrowing. This technique is non-intrusive (needs no architecture modification) and has minimal impact on throughput.
    Type: Application
    Filed: June 30, 2011
    Publication date: July 12, 2012
    Applicants: STMICROELECTRONICS SA, STMicroelectronics Pvt Ltd.
    Inventors: Chittoor PARTHASARATHY, Nitin Chawla, Kallol Chatterjee, Pascal Urard
  • Adaptive multi-stage slack borrowing for high performance error resilient computing
    Patent number: 8994416
    Abstract: Adaptive scaling digital techniques attempt to place the system close to the timing failure so as to maximize energy efficiency. Rapid recovery from potential failures is usually by slowing the system clock and/or providing razor solutions (instruction replay.) These techniques compromise the throughput. This application presents a technique to provide local in-situ fault resilience based on dynamic slack borrowing. This technique is non-intrusive (needs no architecture modification) and has minimal impact on throughput.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: March 31, 2015
    Assignees: STMicroelectronics International N.V., STMicroelectronics SA
    Inventors: Chittoor Parthasarathy, Nitin Chawla, Kallol Chatterjee, Pascal Urard
  • Adaptive multi-stage slack borrowing for high performance error resilient computing
    Patent number: 8552765
    Abstract: Adaptive scaling digital techniques attempt to place the system close to the timing failure so as to maximize energy efficiency. Rapid recovery from potential failures is usually by slowing the system clock and/or providing razor solutions (instruction replay.) These techniques compromise the throughput. We present a technique to provide local in-situ fault resilience based on dynamic slack borrowing. This technique is non-intrusive (needs no architecture modification) and has minimal impact on throughput.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: October 8, 2013
    Assignees: STMicroelectronics International N.V., STMicroelectronics SA
    Inventors: Chittoor Parthasarathy, Nitin Chawla, Kallol Chatterjee, Pascal Urard
  • INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND PROGRAM
    Publication number: 20210012807
    Abstract: Problem: An information processing device, an information processing method, and a program are to be provided. Solution: An information processing device including: a mode control unit that determines a replay mode from replay mode candidates including a user dependent mode where output and replay are performed dependently on a user's action and a user independent mode where output and replay are performed independently of the user's action; and a output control unit that controls output and replay of an image, based on the replay mode.
    Type: Application
    Filed: March 7, 2019
    Publication date: January 14, 2021
    Inventors: TATSUSHI NASHIDA, MASANORI MIKAMI, KOUTA MINAMIZAWA, MASAHIKO INAMI, TADATOSHI KUROGI, MINATO TAKEDA, KAZUYA YANAGIHARA
  • SERVICE VIRTUALIZATION
    Publication number: 20240152446
    Abstract: An application in production may communicate with one or more heterogeneous services, including requesting and receiving data from a one or more data sources. The communication between the application and the services can include complicated scenarios making facilitating end-to-end testing of the application difficult. The disclosed service virtualization solution works in two stages of ‘record and replay’ to simulate a backend service. During the recording stage, the disclosed tool intercepts the data flow between the client and the service and records the data and during the replay stage, the disclosed tool creates a proxy service that simulates the responses of service application by reading the recorded session file, allowing for the client application to be tested without having to connect to the actual service application.
    Type: Application
    Filed: January 16, 2024
    Publication date: May 9, 2024
    Inventors: Saraf Uddin Talukder, Jalil Vaidya
  • Service virtualization
    Patent number: 11907104
    Abstract: An application in production may communicate with one or more heterogeneous services, including requesting and receiving data from a one or more data sources. The communication between the application and the services can include complicated scenarios making facilitating end-to-end testing of the application difficult. The disclosed service virtualization solution works in two stages of ‘record and replay’ to simulate a backend service. During the recording stage, the disclosed tool intercepts the data flow between the client and the service and records the data and during the replay stage, the disclosed tool creates a proxy service that simulates the responses of service application by reading the recorded session file, allowing for the client application to be tested without having to connect to the actual service application.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: February 20, 2024
    Assignee: Wells Fargo Bank, N.A.
    Inventors: Saraf Uddin Talukder, Jalil Vaidya
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