Patents by Inventor Juan Jenny Li
Juan Jenny Li 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: 8799478Abstract: A communication system processing element comprises a processor coupled to a memory and implements an endpoint of the system. The endpoint includes a session initiation protocol (SIP) component and a web services component. The SIP component is configured for communication via SIP signaling with one or more other endpoints of the system. The web services component is configured for interfacing the SIP component to one or more communication service applications of the system.Type: GrantFiled: September 29, 2004Date of Patent: August 5, 2014Assignee: Avaya Inc.Inventors: Wu Chou, Juan Jenny Li, Li Li, Feng Liu
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Patent number: 8752007Abstract: A method and apparatus for automatically generating a run-time instrumenter are disclosed. In accordance with the illustrative embodiment, an off-line analyzer first determines instrumentation locations for a program under test in accordance with a method called the Super Nested Block Method. After the instrumentation locations have been determined, source code for a run-time instrumenter is automatically generated based on the source code for the program under test and the instrumentation locations. The source code for the program under test and the run-time instrumenter are then compiled into executables, and a testing tool then executes the program under test and the run-time instrumenter in parallel.Type: GrantFiled: March 26, 2008Date of Patent: June 10, 2014Assignee: Avaya Inc.Inventors: Juan Jenny Li, David Mandel Weiss
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Patent number: 8739145Abstract: A method for determining the number and location of instrumentation probes to be inserted into a program is disclosed. The method advantageously inserts the minimum number of probes that are required to obtain execution coverage for every node in the program's control-flow graph. In addition, the method requires only one bit to store each probe and does not require the assignment of weights to arcs or nodes of the control-flow graph. In the illustrative embodiment, the nodes of a control-flow graph are partitioned into non-empty sets, where each non-empty set corresponds to a super nested block of the program.Type: GrantFiled: March 26, 2008Date of Patent: May 27, 2014Assignee: Avaya Inc.Inventors: Juan Jenny Li, David Mandel Weiss
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Publication number: 20140019560Abstract: Embodiments disclosed herein provide systems and methods for evaluating performance stress in a multi-modal network notification service. In a particular embodiment, a method provides generating a covering array of test factors corresponding to a plurality of modes and a plurality of test level values for each mode and determining an escalation hierarchy of the covering array comprising a plurality of nodes, wherein each node corresponds to a set of test factors in the covering array. The method further provides performing a notification test run of the set of test factors for each node in the escalation hierarchy to determine performance stress for each set of test factors. The method further provides generating a first factor-level-run table with the notification test runs corresponding to each of n-wise test factors and possible test level values and indicating which of the notification test runs in the factor-level-run table resulted in performance stress.Type: ApplicationFiled: October 5, 2012Publication date: January 16, 2014Applicant: AVAYA INC.Inventors: Juan Jenny Li, Colin L. Mallows, James M. Landwehr
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Patent number: 8621441Abstract: Disclosed herein are systems, methods, and non-transitory computer-readable storage media for analyzing source code and identifying potential defects. The methods employ both static analysis and dynamic testing to detect program defects early in the development stage for better quality with less cost. The analysis also ranks identified potential defects and reports only the most likely defects to a human developer. Once defects are detected, they can be removed right away and similar defects can be prevented automatically.Type: GrantFiled: December 27, 2010Date of Patent: December 31, 2013Assignee: Avaya Inc.Inventors: James M Landwehr, Juan Jenny Li, John Palframan
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Patent number: 8484623Abstract: A method for determining the number and location of instrumentation probes to be inserted into a program is disclosed. The method advantageously inserts the minimum number of probes that are required to obtain execution coverage for every node in the program's control-flow graph. In addition, the method requires only type of node marking and one bit to store each probe, and does not require the assignment of weights to arcs or nodes of the control-flow graph. In the illustrative embodiment, the nodes of a control-flow graph are partitioned into non-empty sets, where each non-empty set corresponds to a super nested block of the program.Type: GrantFiled: September 29, 2008Date of Patent: July 9, 2013Assignee: Avaya, Inc.Inventors: Juan Jenny Li, David Mandel Weiss
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Patent number: 8356289Abstract: A mechanism for encoding and reporting instrumented data is disclosed that requires less storage space and incurs less processor overhead than other methods of the prior art. In accordance with the illustrative embodiment, a bit vector in shared memory corresponds to nodes of a program's control-flow graph that have been instrumented, and the contents of the vector indicate which of these nodes have executed; in addition, character strings in shared memory indicate what file, class, and method each node belongs to. A process that executes concurrently with those of the program under test transmits instrumented data from the shared memory to a database. The illustrative embodiment enables efficient, rapid reporting and storage of instrumented data, and is therefore especially well-suited for run-time analysis of real-time concurrent systems.Type: GrantFiled: September 29, 2008Date of Patent: January 15, 2013Assignee: Avaya Inc.Inventors: Juan Jenny Li, David Mandel Weiss
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Patent number: 8291399Abstract: A technique is disclosed for determining off-line the number and location of instrumentation probes to be inserted into a program under testing, and subsequently instrumenting the program at run-time based on the off-line analysis. In accordance with the illustrative embodiment, an off-line analyzer first determines instrumentation locations for a program under test in accordance with a method called the Super Nested Block Method. After the instrumentation locations have been determined, a testing/monitoring tool executes the program and a run-time instrumenter in parallel. The run-time instrumenter accordingly inserts probes into the program, removes probes after they have been executed once, and generates and reports information about code coverage based on the probes.Type: GrantFiled: March 26, 2008Date of Patent: October 16, 2012Assignee: Avaya Inc.Inventors: Juan Jenny Li, David Mandel Weiss
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Publication number: 20120167060Abstract: Disclosed herein are systems, methods, and non-transitory computer-readable storage media for analyzing source code and identifying potential defects. The methods employ both static analysis and dynamic testing to detect program defects early in the development stage for better quality with less cost. The analysis also ranks identified potential defects and reports only the most likely defects to a human developer. Once defects are detected, they can be removed right away and similar defects can be prevented automatically.Type: ApplicationFiled: December 27, 2010Publication date: June 28, 2012Applicant: Avaya Inc.Inventors: James M. Landwehr, Juan Jenny Li, John Palframan
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Patent number: 8108826Abstract: A method for generating test cases for a program is disclosed. The method combines features of path-oriented and goal-oriented software testing. The illustrative embodiment constructs a control-flow graph with nodes that correspond to invocations of subroutines, and constructs control-flow graphs for the source code of such nodes as well. A metric that is based on the topology of the control-flow graph is evaluated recursively for nodes of the graph and for control-flow graphs that correspond to invoked subroutines. In the illustrative embodiment, the metric employed is the length of a shortest path from the starting node to a particular node. A node n with the highest metric value is then selected as a goal, and a path from the starting node to the ending node that passes through node n is generated via backtracking.Type: GrantFiled: September 29, 2004Date of Patent: January 31, 2012Assignee: Avaya Inc.Inventors: Juan Jenny Li, David Mandel Weiss, Howell Stephen Yee
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Publication number: 20110302563Abstract: A parser parses an application that comprises two or more different modules; the modules are bytecodes, object codes, and/or modules compiled using different programming languages. The parser identifies code statements in the modules or source code for the modules that correspond to common AST node types. A common AST node type is an abstraction of common elements in programming languages/bytecodes/object codes. Examples of code statements that are common in programming languages/bytecodes/object codes are branching, returns from functions, assignments, and the like. The use of common AST node types allows a user to generate different diagrams of the structure of the application. For example, a code flow diagram can be generated that allows a user to view the flow of code between the different modules implemented in different languages.Type: ApplicationFiled: June 8, 2010Publication date: December 8, 2011Applicant: AVAYA INC.Inventor: Juan Jenny LI
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Patent number: 7925717Abstract: Techniques are disclosed for controlling interaction between an enterprise application and a mobile client device in a communication system. Push content is generated in a wireless secure server or other type of server, responsive to information received in the wireless secure server from the enterprise application. The push content is deliverable from the wireless secure server to the mobile client device over a wireless network. The wireless secure server receives from the mobile client device, responsive to the push content, a request for additional information identifiable at least in part by the push content. The additional information is deliverable from the server to the mobile client device over the wireless network.Type: GrantFiled: September 23, 2003Date of Patent: April 12, 2011Assignee: Avaya Inc.Inventors: Wu Chou, Juan Jenny Li, Xueshan Shan
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Publication number: 20100287109Abstract: A method for the establishing of connections between software users based on a pattern of use and/or a characteristic of content related to the users and the software. The interaction of a software user with the software is monitored and a characteristic of content related to the user and the software is determined. When the user needs customer support, he or she is routed to a fellow user of the same software who is capable of providing help. The helping user is selected based on the way in which the first user interacts with the software and/or the characteristic of content related to the first user and the software.Type: ApplicationFiled: May 8, 2009Publication date: November 11, 2010Applicant: AVAYA INC.Inventors: Juan Jenny Li, David Mandel Weiss
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Patent number: 7782787Abstract: Techniques for performing rapid fault detection and recovery in communication networks are disclosed. For example, in one aspect of the invention, a technique for detecting one or more conditions in a communication network comprises the following steps/operations. One or more keep-alive packets are transmitted from a source node in the communication network to a destination node in the communication network over two or more paths between the source node and the destination node, wherein the two or more paths are at least partially disjoint. Upon receipt of the one or more keep-alive packets at the destination node via the two or more paths, at least one quality measure is computed at the destination node for each of the two or more paths, the at least one quality measure being indicative of one or more conditions in the communication network.Type: GrantFiled: September 29, 2004Date of Patent: August 24, 2010Assignee: Avaya Inc.Inventors: Mark John Karol, Parameshwaran Krishnan, Juan Jenny Li
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Publication number: 20090249308Abstract: A mechanism for encoding and reporting instrumented data is disclosed that requires less storage space and incurs less processor overhead than other methods of the prior art. In accordance with the illustrative embodiment, a bit vector in shared memory corresponds to nodes of a program's control-flow graph that have been instrumented, and the contents of the vector indicate which of these nodes have executed; in addition, character strings in shared memory indicate what file, class, and method each node belongs to. A process that executes concurrently with those of the program under test transmits instrumented data from the shared memory to a database. The illustrative embodiment enables efficient, rapid reporting and storage of instrumented data, and is therefore especially well-suited for run-time analysis of real-time concurrent systems.Type: ApplicationFiled: September 29, 2008Publication date: October 1, 2009Applicant: AVAYA INC.Inventors: Juan Jenny Li, David Mandel Weiss
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Publication number: 20090249306Abstract: A technique is disclosed for determining off-line the number and location of instrumentation probes to be inserted into a program under testing, and subsequently instrumenting the program at run-time based on the off-line analysis. In accordance with the illustrative embodiment, an off-line analyzer first determines instrumentation locations for a program under test in accordance with a method called the Super Nested Block Method. After the instrumentation locations have been determined, a testing/monitoring tool executes the program and a run-time instrumenter in parallel. The run-time instrumenter accordingly inserts probes into the program, removes probes after they have been executed once, and generates and reports information about code coverage based on the probes.Type: ApplicationFiled: March 26, 2008Publication date: October 1, 2009Applicant: AVAYA TECHNOLOGY LLCInventors: Juan Jenny Li, David Mandel Weiss
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Publication number: 20090249285Abstract: A method and apparatus for automatically generating a run-time instrumenter are disclosed. In accordance with the illustrative embodiment, an off-line analyzer first determines instrumentation locations for a program under test in accordance with a method called the Super Nested Block Method. After the instrumentation locations have been determined, source code for a run-time instrumenter is automatically generated based on the source code for the program under test and the instrumentation locations. The source code for the program under test and the run-time instrumenter are then compiled into executables, and a testing tool then executes the program under test and the run-time instrumenter in parallel.Type: ApplicationFiled: March 26, 2008Publication date: October 1, 2009Applicant: AVAYA TECHNOLOGY LLCInventors: Juan Jenny Li, David Mandel Weiss
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Publication number: 20090249309Abstract: A method for determining the number and location of instrumentation probes to be inserted into a program is disclosed. The method advantageously inserts the minimum number of probes that are required to obtain execution coverage for every node in the program's control-flow graph. In addition, the method requires only type of node marking and one bit to store each probe, and does not require the assignment of weights to arcs or nodes of the control-flow graph. In the illustrative embodiment, the nodes of a control-flow graph are partitioned into non-empty sets, where each non-empty set corresponds to a super nested block of the program.Type: ApplicationFiled: September 29, 2008Publication date: October 1, 2009Applicant: AVAYA INC.Inventors: Juan Jenny Li, David Mandel Weiss
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Publication number: 20090249305Abstract: A method for determining the number and location of instrumentation probes to be inserted into a program is disclosed. The method advantageously inserts the minimum number of probes that are required to obtain execution coverage for every node in the program's control-flow graph. In addition, the method requires only one bit to store each probe and does not require the assignment of weights to arcs or nodes of the control-flow graph. In the illustrative embodiment, the nodes of a control-flow graph are partitioned into non-empty sets, where each non-empty set corresponds to a super nested block of the program.Type: ApplicationFiled: March 26, 2008Publication date: October 1, 2009Applicant: AVAYA TECHNOLOGY LLCInventors: Juan Jenny Li, David Mandel Weiss
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Patent number: 7463652Abstract: The present invention is a system and method for rapid network failure detection, identification and notification to internet users. It is particular applicable to VoIP applications where such real-time problem identification is particular valuable. It reduces failure detection time by coordinating the sending frequency of RTP and RTCP packets. These incoming packets are monitored and the failure to receive a predetermined number in a specified time window indicates that a network problem has occurred. This problem is then promptly communicated to users of the system.Type: GrantFiled: June 21, 2003Date of Patent: December 9, 2008Assignee: Avaya, Inc.Inventors: Mark J. Karol, P. Krishnan, Juan Jenny Li