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公开(公告)号：US08116758B2
公开(公告)日：2012-02-14
申请号：US12501852
申请日：2009-07-13
IPC分类号： H04W24/00
摘要： Time-varying conditions in a wireless network are simulated using an architecture that includes an enclosure for shielding a wireless device under test (“DUT”) from electro-magnetic interference, including other wireless devices; and at least one of: (1) a communications traffic generating device operable to generate communications traffic having selected characteristics; and (2) at least one dynamically adjustable attenuator in communication with the wireless device and the traffic generator. Embodiments of the architecture include wireless test equipment for testing operating range, roaming and capacity. The attenuator is used to adjustably attenuate signals between the device and the traffic generator over time during a test, whereby motion of the device is simulated. By connecting multiple access points, each associated with a dynamically adjustable attenuator, it is possible to force the DUT to roam between access points. The communications traffic generating device can be used to vary traffic over time during a test in order to test capacity, prioritization and admission control. For example, the communications traffic generator may include phone and data client emulators which simulate different traffic types that can be independently varied over time during a test.
摘要翻译： 无线网络中的时变条件是使用包括用于屏蔽被测无线设备（“DUT”）的电磁干扰包括其他无线设备在内的架构来模拟的; 和（1）可操作以产生具有所选特征的通信业务的通信业务生成设备中的至少一个; 和（2）与所述无线设备和所述业务发生器通信的至少一个动态可调衰减器。 该架构的实施例包括用于测试操作范围，漫游和容量的无线测试设备。 衰减器用于在测试期间随时间推移在装置和交通发生器之间可调节地衰减信号，由此模拟装置的运动。 通过连接多个接入点，每个接入点与动态可调衰减器相关联，可以迫使DUT在接入点之间漫游。 通信业务生成设备可以用于在测试期间随时间改变流量，以便测试容量，优先级和接纳控制。 例如，通信业务生成器可以包括电话和数据客户端仿真器，其模拟在测试期间随时间独立地变化的不同业务类型。
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公开(公告)号：US20100172244A1
公开(公告)日：2010-07-08
申请号：US12501852
申请日：2009-07-13
IPC分类号： H04W24/00
摘要： Time-varying conditions in a wireless network are simulated using an architecture that includes an enclosure for shielding a wireless device under test (“DUT”) from electro-magnetic interference, including other wireless devices; and at least one of: (1) a communications traffic generating device operable to generate communications traffic having selected characteristics; and (2) at least one dynamically adjustable attenuator in communication with the wireless device and the traffic generator. Embodiments of the architecture include wireless test equipment for testing operating range, roaming and capacity. The attenuator is used to adjustably attenuate signals between the device and the traffic generator over time during a test, whereby motion of the device is simulated. By connecting multiple access points, each associated with a dynamically adjustable attenuator, it is possible to force the DUT to roam between access points. The communications traffic generating device can be used to vary traffic over time during a test in order to test capacity, prioritization and admission control. For example, the communications traffic generator may include phone and data client emulators which simulate different traffic types that can be independently varied over time during a test.
摘要翻译： 无线网络中的时变条件是使用包括用于屏蔽被测无线设备（“DUT”）的电磁干扰包括其他无线设备在内的架构来模拟的; 和（1）可操作以产生具有所选特征的通信业务的通信业务生成设备中的至少一个; 和（2）与所述无线设备和所述业务发生器通信的至少一个动态可调衰减器。 该架构的实施例包括用于测试操作范围，漫游和容量的无线测试设备。 衰减器用于在测试期间随时间推移在装置和交通发生器之间可调节地衰减信号，由此模拟装置的运动。 通过连接多个接入点，每个接入点与动态可调衰减器相关联，可以迫使DUT在接入点之间漫游。 通信业务生成设备可以用于在测试期间随时间改变流量，以便测试容量，优先级和接纳控制。 例如，通信业务生成器可以包括电话和数据客户端仿真器，其模拟在测试期间随时间独立地变化的不同业务类型。
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公开(公告)号：US20060239198A1
公开(公告)日：2006-10-26
申请号：US11111193
申请日：2005-04-21
申请人： Fanny Mlinarsky , John Ziegler , Raymond Cronin , Jeremy Spilman
发明人： Fanny Mlinarsky , John Ziegler , Raymond Cronin , Jeremy Spilman
摘要： Time-varying conditions in a wireless network are simulated using an architecture that includes an enclosure for shielding a wireless device under test (“DUT”) from electromagnetic interference, including other wireless devices; and at least one of: (1) a communications traffic generating device operable to generate communications traffic having selected characteristics; and (2) at least one dynamically adjustable attenuator in communication with the wireless device and the traffic generator. Embodiments of the architecture include wireless test equipment for testing operating range, roaming and capacity. The attenuator is used to adjustably attenuate signals between the device and the traffic generator over time during a test, whereby motion of the device is simulated. By connecting multiple access points, each associated with a dynamically adjustable attenuator, it is possible to force the DUT to roam between access points. The communications traffic generating device can be used to vary traffic over time during a test in order to test capacity, prioritization and admission control. For example, the communications traffic generator may include phone and data client emulators which simulate different traffic types that can be independently varied over time during a test.
摘要翻译： 使用包括用于屏蔽被测电路（“DUT”）的电磁干扰包括其他无线设备的外壳的架构来模拟无线网络中的时变条件; 和（1）可操作以产生具有所选特征的通信业务的通信业务生成设备中的至少一个; 和（2）与所述无线设备和所述业务发生器通信的至少一个动态可调衰减器。 该架构的实施例包括用于测试操作范围，漫游和容量的无线测试设备。 衰减器用于在测试期间随时间推移在装置和交通发生器之间可调节地衰减信号，由此模拟装置的运动。 通过连接多个接入点，每个接入点与动态可调衰减器相关联，可以迫使DUT在接入点之间漫游。 通信业务生成设备可以用于在测试期间随时间改变流量，以便测试容量，优先级和接纳控制。 例如，通信业务生成器可以包括电话和数据客户端仿真器，其模拟在测试期间随时间独立地变化的不同业务类型。
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公开(公告)号：US20060229018A1
公开(公告)日：2006-10-12
申请号：US11208150
申请日：2005-08-19
申请人： Fanny Mlinarsky , Charles Wright , Raymond Cronin
发明人： Fanny Mlinarsky , Charles Wright , Raymond Cronin
IPC分类号： H04B17/00
CPC分类号： H04B17/0087 , H04B7/0413
摘要： A modular test chassis for use in testing wireless devices includes a backplane and a channel emulation module coupled to the backplane. The channel emulation module comprises circuitry for emulating the effects of a dynamic physical environment (including air, interfering signals, interfering structures, movement, etc.) on signals in the transmission channel shared by the first and second device. Different channel emulation modules may be included in the test system depending upon the protocol, network topology or capability under test. A test module may be provided to generate traffic at multiple interfaces of SISO or MIMO DUTs to enable thorough testing of device and system behavior in the presence of emulated network traffic and fault conditions. A latency measurement system and method applies timestamps frames as they are transmit and received at the test module for improved latency measurement accuracy.
摘要翻译： 用于测试无线设备的模块化测试机箱包括耦合到背板的背板和通道仿真模块。 信道仿真模块包括用于模拟由第一和第二设备共享的传输信道中的信号的动态物理环境（包括空中，干扰信号，干扰结构，移动等）的影响的电路。 取决于协议，网络拓扑或被测能力，不同的通道仿真模块可能包含在测试系统中。 可以提供测试模块以在SISO或MIMO DUT的多个接口处产生流量，以在存在仿真的网络流量和故障条件的情况下实现设备和系统行为的彻底测试。 延迟测量系统和方法在测试模块发送和接收时应用时间戳帧，以提高延迟测量精度。
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公开(公告)号：US20070143940A1
公开(公告)日：2007-06-28
申请号：US11306318
申请日：2005-12-22
申请人： Raymond Cronin , Steve Athanassie
发明人： Raymond Cronin , Steve Athanassie
摘要： A combination tool for cleaning the bristles of a paintbrush includes a plurality of wire strands arrayed on said base in rows and columns, at least one blunt-edged scraper blade arrayed on said base in transversely disposed relation to a longitudinal axis of the tool, and a plurality of comb teeth arrayed on said base between the handle and the wire strands and the at least one scraper blade. The tool performs three functions at one time so that the amount of time required to clean the bristles is one-third the time required to use all three tools separately. The tool increases productivity and reduces the number of paintbrushes that must be purchased in a given time period.
摘要翻译： 用于清洁油漆刷的刷毛的组合工具包括以行和列排列在所述基座上的多根线股，至少一个钝边刮刀，其布置在与所述工具的纵向轴线横向设置的所述基部上，以及 多个梳齿，其布置在所述基座之间，所述多个梳齿在所述手柄和所述线股和所述至少一个刮刀之间排列。 该工具一次执行三个功能，以便清理刷毛所需的时间是分开使用所有三种工具所需的时间的三分之一。 该工具可提高生产效率，并减少必须在给定时间段内购买的油漆刷的数量。
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