| Spirent Communications, Inc. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110306306 | Method and Apparatus for Virtual Desktop OTA - The present invention relates to testing a mobile device in a lab by providing test signals to the mobile device via a cabled connection which bypasses the actual physical antennas in the mobile device. The test signals emulate a wireless channel and incorporate representative and/or actual measured characteristics of the performance of the antennas in the mobile device. As such, the performance mobile device can be accurately measured without requiring placement in an anechoic chamber, which enables efficient testing over a large set of configurations and underlying conditions. | 12-15-2011 |
| 20110299570 | EMULATION AND CONTROLLED TESTING OF MIMO OTA CHANNELS - The present invention relates to techniques for OTA testing suitable for producing a test signal to emulate a wireless channel while using a limited number of transmit elements. The techniques described herein enable the number of transmit antennas used to emulate a given signal path in an emulated wireless channel to be less than the number of sub-paths used to characterize the angle spread of the given signal path. As a result, a test setup is provided having a relatively small number of transmit antennas which also accurately maintaining the desirable characteristics of the emulated wireless channel. | 12-08-2011 |
| 20110257923 | WiFi Positioning Bench Test Method and Instrument - 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. | 10-20-2011 |
| 20110231437 | REALTIME TEST RESULT PROMULGATION FROM NETWORK COMPONENT TEST DEVICE - The technology disclosed relates to real-time collection and flexible reporting of test data. In particular, it is useful when collecting packet counts during tests of network devices that simulate thousands or even millions of data sessions conducted through a device under test (“DUT”). | 09-22-2011 |
| 20110173498 | Methods and Apparatuses for Generating Network Test Packets and Parts of Network Test Packets - Some aspects of the technology relate to the generation for test purposes of test packet ingredients by a microprocessor, ongoing with the generation for test purposes of test packets incorporating the test packet ingredients by a high-speed FPGA. Some aspects of the technology relate to the generation of outgoing test packets incorporating the test packet ingredients, at a programmable logic device such as an FPGA. These aspects are implemented as an apparatus, a method, computer readable medium, and a data structure. | 07-14-2011 |
| 20110124295 | METHODS AND SYSTEMS FOR TESTING CELL PHONES WITH MULTIPLE ANTENNAS - The present invention relates to testing cell phones that simulates network conditions. In particular, it relates to new testing capabilities for simulating changes in correlation characteristics of signal components delivered to a cell phone. Correlation characteristics express changing environmental conditions and physical relationships among antennas in the cell phone and at base stations. | 05-26-2011 |
| 20110072307 | METHODS AND APPARATUSES FOR GENERATING NETWORK TEST PACKETS AND PARTS OF NETWORK TEST PACKETS - Some aspects of the technology relate to the generation for test purposes of test packet ingredients by a microprocessor, ongoing with the generation for test purposes of test packets incorporating the test packet ingredients by a high-speed FPGA. Some aspects of the technology relate to the generation of outgoing test packets incorporating the test packet ingredients, at a programmable logic device such as an FPGA. These aspects are implemented as an apparatus, a method, computer readable medium, and a data structure. | 03-24-2011 |
| 20100254568 | Reduced-reference visual communication quality assessment using data hiding - A method and system of communicating visual communication quality information, includes extracting reduced-reference (RR) feature data from visual content, embedding the RR feature data in the visual content; and transmitting the visual content with the embedded RR feature data. Visual communication quality is assessed by receiving visual content which includes visual content data and a first set of embedded RR feature data, retrieving the first set of RR feature data from the visual content data, and generating a second set of RR feature data from the visual content data. The second set of RR feature data corresponds to substantially identical features of the visual content data as that used to generate the first set of RR feature data. The first set of RR feature data is compared to the second first set of RR feature data to determine a quality of the visual content based upon the comparison. | 10-07-2010 |
| 20100114529 | DSL DIAGNOSIS EXPERT SYSTEM AND METHOD - The present invention relates to diagnostic analysis of DSL circuits. In particular, it relates to methods and devices that use a rule base and automated test initiation, with excellent reduction in test technician involvement in trouble shooting, reduced truck rolls and more accurate identification of probably causes of customer complaints. | 05-06-2010 |
| 20100061378 | Method and Apparatus for Emulating Network Devices - 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. | 03-11-2010 |
| 20090300419 | REALTIME TEST RESULT PROMULGATION FROM NETWORK COMPONENT TEST DEVICE - The technology disclosed relates to real-time collection and flexible reporting of test data. In particular, it is useful when collecting packet counts during tests of network devices that simulate thousands or even millions of data sessions conducted through a device under test (“DUT”). | 12-03-2009 |
| 20090059804 | Methods and apparatus for generating simulated network traffic - Embodiments of the invention relate to generating simulated network traffic. In some embodiments, simulated network traffic may be generated using a specification of a sequence of frames to be transmitted from the network testing device. The specification may specify at least two frames including a first frame and a second frame. The specification may further specify a first interframe gap associated with the first frame and a second interframe gap, having a different length from the first interframe gap, associated with the second frame. | 03-05-2009 |
