Patents Assigned to Spirent Communications, Inc.
  • Patent number: 9817737
    Abstract: Networks and applications can have many different profiles. Template configurations can consist of a wide variety of technologies such as IPv4, DHCP, and BGP. A list of application profiles would include web services, VoIP, Email, and Point-to-point. Network and application profiles can be combined into topology templates. Test methodologies can include complex sets of instructions that allow for testing any number of topology templates in a number of ways. The technology disclosed allows for the assembly, edit, and execution of those profiles and methodologies by someone who does not possess detailed domain knowledge.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: November 14, 2017
    Assignee: Spirent Communications, Inc.
    Inventors: Greg Kodama, Kahou Lei, Gwo-Jieh Wang, Brian Castelli, Caden Jon Y. Morikuni
  • Patent number: 9768893
    Abstract: A unique method/device for isolating the over-the-air segment within a mobile communications network is provided. A coordinated set of tests is run to isolate problems in an end-to-end network including over-the-air segment, wired, and core network segments. Test results are compared to identify which segment or components within a segment is failing. The testing device executes the same test in two differentiated modes. In one mode, the device acts as a mobile client device identified by subscriber identification data that communicates with the network base station over-the-air using the standard control and data protocols of the mobile network. In another mode, the testing device, identified by the same subscriber identification data, acts like the combination of the same Mobile Client Device(s) and a Network Base Station using a wired interface that is equivalent to the wired interface that connects the network base station to the rest of the wired network.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: September 19, 2017
    Assignee: Spirent Communications, Inc.
    Inventors: Richard Wank, Mike Ludwig, Kevin Canady, Michael Shen
  • Publication number: 20170262130
    Abstract: Systems, methods, and devices for creating test and testing a plurality of touchscreen devices are described. The methods comprise creating a test script by recording the touch events performed on a touchscreen device by a technician. The method of recording touch events for later use as a test script is faster and requires less programming knowledge, compared to manually writing a test script. This is beneficial if a new test script is needed quickly because a technician can perform a desired touch sequence on a device recording the sequence and then distribute the recorded sequence to be played on a plurality of devices to be tested. The recorded sequence may include a plurality of sequential touch events. Additionally, the recorded sequence may include conditional statements used to determining the timing of simulating one of the touch events in the sequence.
    Type: Application
    Filed: March 10, 2017
    Publication date: September 14, 2017
    Applicant: Spirent Communications, Inc.
    Inventors: Rupert Lloyd, Ian Becker, Ardeshir Ghanbarzadeh, Ivo Tadic, Yuanke Wang
  • Publication number: 20170264528
    Abstract: The present invention relates to testing signals on a coaxial home network that carries a digital video signal. It has direct application to testing Multimedia over Coax Alliance (MoCA) standards-compliant networks and applies to similar networks such as Data Over Cable Service Interface Specification (DOCSIS), Ethernet, and Wi-Fi. An embedded expert system can guide an inexperienced operator through the process of evaluating and resolving problems with a home network with little operator input.
    Type: Application
    Filed: March 10, 2017
    Publication date: September 14, 2017
    Applicant: Spirent Communications, Inc.
    Inventor: Douglas GRINKEMEYER
  • Patent number: 9727449
    Abstract: The technology disclosed enables understanding the user experience of accessing a web page under high loads. A testing system generates a simulated load by retrieving and loading a single web object. A performance snapshot is taken of accessing an entire web page from the server under load. The performance snapshot may be performed by emulating a browser accessing a web page's URL, the web page comprising multiple objects that are independently retrieved and loaded. The simulated load is configured with a number of users per region of the world where the user load will originate, and a single object from the web page to retrieve. Performance data such as response time for the single object retrieved, number of hits per second, number of timeouts per sec, and errors per second may be recorded and reported. An optimal number of users may be determined to achieve a target user experience goal.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: August 8, 2017
    Assignee: Spirent Communications, Inc.
    Inventors: Guilherme Hermeto, Brian Buege
  • Patent number: 9660739
    Abstract: The technology disclosed relates to systems and methods for testing adaptive antennas via a multi-probe anechoic chamber, which includes the emulation of real world conditions of a radio frequency (RF) signal reaching a device-under-test (DUT). The technology disclosed can be applied to test and evaluate a range of changed conditions. In one case, beamforming scenarios use separate spatial desired and interference signals, and the results can be compared to uniform interference. Based on performance for a segment of a test profile, the segment can be modified or expanded: shortened, repeated, or repeated with a modification—to fully evaluate the aspect being tested. Also, a dynamic profile that is utilized to evaluate a first device can be saved and repeated as a fixed profile for further testing of a first or second device.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: May 23, 2017
    Assignee: Spirent Communications, Inc.
    Inventor: John Douglas Reed
  • Patent number: 9654303
    Abstract: Methods, apparatuses, data structures, and computer readable media are disclosed that perform emulated processing of packets communicated via a physical port between emulated network devices and real network devices. The emulated processing performs forward equivalence class classification on the packets. The forward equivalence class classification varies with the contents of the packets, and subsequent to the forward equivalence class classification the emulated processing varies with particular successful classifications resulting from the forward equivalence class classification.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: May 16, 2017
    Assignee: Spirent Communications, Inc.
    Inventors: David Joyner, Kris Rousey
  • Publication number: 20170093962
    Abstract: A utilization test generates the multiple dimensions of resource load on the first computer, the multiple dimensions including at least two of: a processor utilization dimension, a main memory utilization dimension, a mass storage utilization dimension, and a network utilization dimension. The utilization test performs iterations of attempts to generate said each dimension of the resource load on the first computer, in an amount equal to a changeable target utilization of said each dimension of the resource load on the first computer. The utilization test adjusts the adjusted utilization to attempt to correct for inequality between (i) the actual utilization of a particular one of the multiple dimensions of the resource load on the first computer, and (ii) the changeable target utilization of the particular one of the multiple dimensions of the resource load on the first computer.
    Type: Application
    Filed: September 30, 2015
    Publication date: March 30, 2017
    Applicant: SPIRENT COMMUNICATIONS, INC.
    Inventors: Timmons Player, David Joyner
  • Patent number: 9591300
    Abstract: The technology disclosed relates to scoring user experience of video frames displayed on a mobile or other video display device. In particular, it relates to capture alignment and test stimulus isolation techniques that compensate for artifacts in the capture mechanism. The technology disclosed includes methods and systems for analyzing both downlink and uplink quality for mobile or other video display device cameras capturing and transmitting video frames including teleconference video display. Particular aspects of the technology disclosed are described in the claims, specification and drawings.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: March 7, 2017
    Assignee: SPIRENT COMMUNICATIONS, INC.
    Inventor: Predrag Djurdjevic
  • Publication number: 20170046254
    Abstract: The technology disclosed enables the automatic definition of monitoring alerts for a web page across a plurality of variables such as server response time, server CPU load, network bandwidth utilization, response time from a measured client, network latency, server memory utilization, and the number of simultaneous sessions, amongst others. This is accomplished through the combination of load or resource loading and performance snapshots, where performance correlations allow for the alignment of operating variables. Performance data such as response time for the objects retrieved, number of hits per second, number of timeouts per sec, and errors per second can be recorded and reported. This allows for the automated ranking of tens of thousands of web pages, with an analysis of the web page assets that affect performance, and the automatic alignment of performance alerts by resource participation.
    Type: Application
    Filed: August 12, 2016
    Publication date: February 16, 2017
    Applicant: Spirent Communications, Inc.
    Inventor: Brian BUEGE
  • Publication number: 20170034506
    Abstract: The operation of testing device for troubleshooting failures in a MoCA LAN system is disclosed that discovers devices on a MoCA LAN. These automatically discovered devices are then sent a large number of data packets that elicit a response from the recipient. The packets transmitted for which no corresponding response is received are counted as lost packets, and the packet loss results for each tested device enables identifying the source of a failure in the network.
    Type: Application
    Filed: July 28, 2015
    Publication date: February 2, 2017
    Applicant: Spirent Communications, Inc.
    Inventors: David Dailey, Douglas Grinkemeyer
  • Publication number: 20170019154
    Abstract: The disclosed technology relates to systems and methods for emulating a massive MIMO beamforming antenna array of arbitrary size—a channel model between a transmitter and a receiver, with one or more signal paths having respective amplitudes, angles of arrival, angle spreads, and delays. The disclosed technology includes defining a complete channel model H, calculating the correlation matrix for the channel, grouping the base antenna elements of the antenna array by combinations of signal and polarization, and calculating observed beamforming power of each group of the base elements, by applying a cross-correlation matrix to determine observed power signals and delay of each signal at each remote antenna element of the user equipment. Emulation includes supplying cross-correlated signals to remote antenna elements of user equipment during a RF test of the user equipment. Disclosed technology includes a channel emulator that generates output streams for testing user equipment for multiple users.
    Type: Application
    Filed: July 16, 2015
    Publication date: January 19, 2017
    Applicant: Spirent Communications, Inc.
    Inventor: John Douglas Reed
  • Patent number: 9519063
    Abstract: The technology disclosed relates to implementing a novel-testing framework that combines playback of captured GNSS signals with real-time emulation of assisted global navigation satellite system telemetry (abbreviated A-GNSS) in a test session with a mobile device. In particular, it can be used for testing A-GNSS performance of communication devices, navigation systems, telematics and tracking applications.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: December 13, 2016
    Assignee: Spirent Communications, Inc.
    Inventors: Jason Davis, Kunal Shanishchara, Ram Garapaty, Brock Butler
  • Patent number: 9495267
    Abstract: A system and method for providing assisted manual testing of computer related devices. Test commands are routed from a user system through a proxy module to a device under test. The responses of the device are routed through the proxy module to a user system. A user interface is run on the user system that allows the user to view the responses of the device in a log with the issued test commands. The user interface includes annotation dialog boxes and fields, highlighting elements and flagging elements through which a user can annotate and create notes for the test log as the test is being run on the device. Through the proxy module, a third party can act as a user and view the test log and user created annotations and notes as the test is being run on the device. The test log, annotation and notes can also be stored by the proxy module so that a third party can view them at a later time.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: November 15, 2016
    Assignee: Spirent Communications, Inc.
    Inventors: Brian Buege, Kevin Oelze, Amish Patel
  • Patent number: 9461997
    Abstract: A method is described that includes securing authorization for a control module to conduct a test using a plurality of test modules running on a plurality of virtual machines. The method further includes registering the plurality of test modules with the control module to conduct the test. Authorization of the control module is extended to the test modules by securely communicating authorization and instructions to a first set of the registered test modules to send test stimulus to a device under test. Similarly, the authorization is extended to the test modules by securely communicating authorization to and receiving test result data from a second set of the registered test modules, wherein the test result data is responsive to the test stimulus sent to the device under test. The first and second sets of registered test modules can overlap or be the same test modules.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: October 4, 2016
    Assignee: Spirent Communications, Inc.
    Inventor: Thomas R. McBeath
  • Patent number: 9462495
    Abstract: A system method and device for evaluating the Quality of Service (QoS) performance of mobile telephone devices in the concurrent performance of different services through a mobile telephone network is provided. In one embodiment, the method comprises establishing a first logical communication channel via the mobile telephone network, communicating first information over the first logical communication channel, establishing a second logical communication channel over a communication network, concurrently with said communicating first information, communicating second information over the second logical communication channel, and determining a plurality of service quality metrics for the first and second information communicated over the first and second logical communication channel.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: October 4, 2016
    Assignee: Spirent Communications, Inc.
    Inventors: Dimitrios M. Topaltzas, Jeffrey Horner, Carl Magnus Lidman, Jonathan Patrick O'Keefe, Andrea Holt, Evan Henry, Simon Paul Bone, Lauren Belella
  • Patent number: 9451484
    Abstract: The present invention relates to simulation on a lab workbench of conditions that would be encountered by a mobile device during a so-called drive test, which involves transporting the mobile device along a course so that it encounters fading and changing wireless access points used normally to connect the mobile device to a wireless network but in this case used to locate the device. The instrument and method also support parametric testing of transceivers used for WiFi positioning and, optionally, GNSS positioning by the same mobile device used for WiFi positioning.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: September 20, 2016
    Assignee: SPIRENT COMMUNICATIONS, INC.
    Inventor: Peter George Boulton
  • Publication number: 20160233970
    Abstract: The technology disclosed relates to systems and methods for testing adaptive antennas via a multi-probe anechoic chamber, which includes the emulation of real world conditions of a radio frequency (RF) signal reaching a device-under-test (DUT). The technology disclosed can be applied to test and evaluate a range of changed conditions. In one case, beamforming scenarios use separate spatial desired and interference signals, and the results can be compared to uniform interference. Based on performance for a segment of a test profile, the segment can be modified or expanded: shortened, repeated, or repeated with a modification—to fully evaluate the aspect being tested. Also, a dynamic profile that is utilized to evaluate a first device can be saved and repeated as a fixed profile for further testing of a first or second device.
    Type: Application
    Filed: February 3, 2016
    Publication date: August 11, 2016
    Applicant: Spirent Communications, Inc.
    Inventor: John Douglas Reed
  • Patent number: 9407643
    Abstract: A system for consolidating network streams includes a consolidator in communication with each of a plurality of network streams. Each network stream is associated with a communication path through a network. The consolidator is configured to prevent the plurality of network streams from being networked together, and configured to create at least one virtual local area network (VLAN) within the consolidator. The consolidator is configured to pass information on an ingress port of the consolidator associated with the at least one VLAN to egress ports of the consolidator associated with the at least one VLAN. The system includes a network analyzer in communication with the consolidator. The consolidator is configured to consolidate the plurality of network streams into a single network stream for application to the network analyzer to determine characteristics of each of the plurality of network streams.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: August 2, 2016
    Assignee: Spirent Communications, Inc.
    Inventor: Stephen Bavington
  • Publication number: 20160188445
    Abstract: The technology disclosed enables understanding the user experience of accessing a web page under high loads. A testing system generates a simulated load by retrieving and loading a single web object. A performance snapshot is taken of accessing an entire web page from the server under load. The performance snapshot may be performed by emulating a browser accessing a web page's URL, the web page comprising multiple objects that are independently retrieved and loaded. The simulated load is configured with a number of users per region of the world where the user load will originate, and a single object from the web page to retrieve. Performance data such as response time for the single object retrieved, number of hits per second, number of timeouts per sec, and errors per second may be recorded and reported. An optimal number of users may be determined to achieve a target user experience goal.
    Type: Application
    Filed: December 31, 2014
    Publication date: June 30, 2016
    Applicant: Spirent Communications, Inc.
    Inventors: Guilherme Hermeto, Brian Buege