Patents by Inventor Erik Muench
Erik Muench 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: 10063567Abstract: A method of detecting aberrant behavior in a software application is described. The method includes instantiating replicated applications on computing devices using identical initial setting. Each replicated application is a replicated instance of the software application. Information associated with a first API call from the first replicated application, and information associated with a second API call from the second replicated application is received. The information includes a call identifier of the API call and a digest. The call identifier is unique during the lifetime of the replicated application issuing it and is identical across the replicated applications. If the first and second call identifiers are identical, the method determines whether the first and second digests match. The method also includes, in response to the first and second digests not matching, signaling that aberrant behavior has occurred. Apparatus and computer readable media are also described.Type: GrantFiled: November 12, 2015Date of Patent: August 28, 2018Assignee: Virtual Software Systems, Inc.Inventors: Richard D. Fiorentino, Charles H. Kaman, Mario Troiani, Erik Muench
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Publication number: 20160142422Abstract: A method of detecting aberrant behavior in a software application is described. The method includes instantiating replicated applications on computing devices using identical initial setting. Each replicated application is a replicated instance of the software application. Information associated with a first API call from the first replicated application, and information associated with a second API call from the second replicated application is received. The information includes a call identifier of the API call and a digest. The call identifier is unique during the lifetime of the replicated application issuing it and is identical across the replicated applications. If the first and second call identifiers are identical, the method determines whether the first and second digests match. The method also includes, in response to the first and second digests not matching, signaling that aberrant behavior has occurred. Apparatus and computer readable media are also described.Type: ApplicationFiled: November 12, 2015Publication date: May 19, 2016Inventors: Richard D. Fiorentino, Charles H. Kaman, Mario Troiani, Erik Muench
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Patent number: 6473869Abstract: A fault tolerant/fault resilient computer system includes at least two compute elements connected to at least one controller. Each compute element has clocks that operate asynchronously to clocks of the other compute elements. The compute elements operate in a first mode in which the compute elements each execute a first stream of instructions in emulated clock lockstep, and in a second mode in which the compute elements each execute a second stream of instructions in instruction lockstep. Each compute element may be a multi-processor compute element.Type: GrantFiled: August 10, 2001Date of Patent: October 29, 2002Assignee: Marathon Technologies CorporationInventors: Thomas D. Bissett, Paul A. Leveille, Erik Muench
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Publication number: 20020026604Abstract: A fault tolerant/fault resilient computer system includes at least two compute elements connected to at least one controller. Each compute element has clocks that operate asynchronously to clocks of the other compute elements. The compute elements operate in a first mode in which the compute elements each execute a first stream of instructions in emulated clock lockstep, and in a second mode in which the compute elements each execute a second stream of instructions in instruction lockstep. Each compute element may be a multi-processor compute element.Type: ApplicationFiled: August 10, 2001Publication date: February 28, 2002Applicant: Marathon Technologies Corporation, a Delaware corporationInventors: Thomas D. Bissett, Paul A. Leveille, Erik Muench
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Patent number: 6279119Abstract: A fault tolerant/fault resilient computer system includes at least two compute elements connected to at least one controller. Each compute element has clocks that operate asynchronously to clocks of the other compute elements. The compute elements operate in a first mode in which the compute elements each execute a first stream of instructions in emulated clock lockstep, and in a second mode in which the compute elements each execute a second stream of instructions in instruction lockstep. Each compute element may be a multi-processor compute element.Type: GrantFiled: November 13, 1998Date of Patent: August 21, 2001Assignee: Marathon Technologies CorporationInventors: Thomas D. Bissett, Paul A. Leveille, Erik Muench
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Patent number: 6205565Abstract: Data transfer to computing elements is synchronized in a computer system that includes the computing elements and controllers that provide data from data sources to the computing elements. A request for data made by a computing element is intercepted and transmitted to the controllers. At least a first controller responds by transmitting requested data to the computing element and by indicating how a second controller will respond to the intercepted request.Type: GrantFiled: May 19, 1998Date of Patent: March 20, 2001Assignee: Marathon Technologies CorporationInventors: Thomas D. Bissett, Martin J. Fitzgerald, V, Paul A. Leveille, James D. McCollum, Erik Muench, Glenn A. Tremblay
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Patent number: 5896523Abstract: Synchronized execution is maintained by compute elements processing instruction streams in a computer system including the compute elements and a controller. Each compute element includes a clock that operates asynchronously with respect to clocks of the other compute elements. Each compute element processes instructions from an instruction stream and counts the instructions processed. Upon processing a quantum of instructions from the instruction stream, the compute element initiates a synchronization procedure and continues to process instructions from the instruction stream and to count instructions processed from the instruction stream. The compute element halts processing of instructions from the instruction stream after processing an unspecified number of instructions from the instruction stream in addition to the quantum of instructions. Upon halting processing, the compute element sends a synchronization request to the controller and waits for a synchronization reply.Type: GrantFiled: June 4, 1997Date of Patent: April 20, 1999Assignee: Marathon Technologies CorporationInventors: Thomas D. Bissett, Paul A. Leveille, Erik Muench, Glenn A. Tremblay
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Patent number: 5790397Abstract: Data transfer to computing elements is synchronized in a computer system that includes the computing elements and controllers that provide data from data sources to the computing elements. A request for data made by a computing element is intercepted and transmitted to the controllers. At least a first controller responds by transmitting requested data to the computing element and by indicating how a second controller will respond to the intercepted request.Type: GrantFiled: September 17, 1996Date of Patent: August 4, 1998Assignee: Marathon Technologies CorporationInventors: Thomas D. Bissett, Martin J. Fitzgerald, V, Paul A. Leveille, James D. McCollum, Erik Muench, Glenn A. Tremblay