Apparatus and methods for modeling and simulating the effect of mismatch in design flows of integrated circuits
    1.
    发明授权
    Apparatus and methods for modeling and simulating the effect of mismatch in design flows of integrated circuits 失效
    用于建模和模拟集成电路设计流程中不匹配影响的装置和方法

    公开(公告)号:US06560755B1

    公开(公告)日:2003-05-06

    申请号:US09648396

    申请日:2000-08-24

    IPC分类号: G06F1750

    CPC分类号: G06F17/5036

    摘要: An exemplary method for simulating the effect of mismatch in design flows comprises receiving measured data, receiving an original model, extracting a mismatch model based on the measured data and the original model, attaching the mismatch model to the netlist to obtain a modified netlist, and simulating an effect of mismatch based on the modified netlist. In one embodiment, the extracting of a mismatch model includes selecting a set of model parameters, generating a distribution of mismatch values for each of the model parameters, extracting a set of linking coefficients based on said mismatch values, and extracting said mismatch model based on said set of linking coefficients. In another embodiment, the attaching of the mismatch model to the netlist includes determining a number of layers in the netlist, generating a copy of a lower layer in the netlist, the copy including a reference to a mismatch model definition, generating a copy of a higher layer in the netlist, replacing a reference to the lower layer in the higher layer by a reference to the copy of the lower layer, and generating a new model definition.

    摘要翻译: 用于模拟设计流程中的不匹配效应的示例性方法包括接收测量数据,接收原始模型,基于测量数据和原始模型提取失配模型,将不匹配模型附加到网表以获得修改的网表,以及 基于修改的网表模拟不匹配的影响。 在一个实施例中,提取失配模型包括选择一组模型参数,生成每个模型参数的失配值分布,基于所述失配值提取一组链接系数,以及基于 所述一组链接系数。 在另一个实施例中,将不匹配模型附加到网表包括确定网表中的层数,生成网表中较低层的副本,该副本包括对不匹配模型定义的引用,生成 网表中的较高层,通过对较低层的副本的引用替代对较高层中较低层的引用,并生成新的模型定义。

    Realistic worst-case circuit simulation system and method
    2.
    发明授权
    Realistic worst-case circuit simulation system and method 失效
    现实最坏情况下的电路仿真系统及方法

    公开(公告)号:US5790436A

    公开(公告)日:1998-08-04

    申请号:US963510

    申请日:1997-11-03

    IPC分类号: G06F17/50 H01L21/66 G06F17/00

    CPC分类号: H01L22/20 G06F17/5036

    摘要: A system and method of simulating operation of an integrated circuit. First, circuit characteristics of circuit components are measured, and a set of circuit simulation model parameters are generated for each measured circuit component. Then, the operation of predefined circuit primitives is simulated using each of the generated sets of circuit simulation model parameters. The circuit primitives include the measured circuit components. The simulated operations are then analyzed to select ones of the simulated operations that are worst, best and nominal with respect to a specified circuit performance parameter and to extract model parameters corresponding to the worst case, best case and nominal case sets of circuit simulation model parameters from the generated sets of circuit simulation model parameters. Each extracted set of circuit simulation model parameters comprises one of the generated sets of circuit simulation model parameters. Then a target circuit is simulated using each of the worst case, best case and nominal case sets of circuit simulation model parameters so as to generate data representing the target circuits under worst case, best case and nominal case manufacturing conditions.

    摘要翻译: 一种模拟集成电路运行的系统和方法。 首先测量电路元件的电路特性,并为每个测量的电路元件生成一组电路仿真模型参数。 然后,使用每个生成的电路仿真模型参数集来模拟预定义电路图元的操作。 电路图元包括测量的电路元件。 然后分析模拟操作以选择相对于指定电路性能参数为最差,最佳和标称的模拟操作,并提取对应于电路仿真模型参数的最坏情况,最佳情况和标称情况集的模型参数 从生成的电路模拟模型参数集。 每个提取的电路仿真模型参数集包括生成的电路仿真模型参数集之一。 然后使用电路仿真模型参数的最坏情况,最佳情况和标称情况集合中的每一个模拟目标电路,以便在最坏情况,最佳情况和名义情况制造条件下生成表示目标电路的数据。

    All-in-one wireless network device
    3.
    发明授权
    All-in-one wireless network device 有权
    一体化无线网络设备

    公开(公告)号:US08582507B1

    公开(公告)日:2013-11-12

    申请号:US13230595

    申请日:2011-09-12

    IPC分类号: H04W4/00

    CPC分类号: G06F9/455 H04W88/10

    摘要: A system to wirelessly communicate with a wireless network. The system includes a memory and a processor. The memory is configured to store a first queue, a second queue, and a processor queue. The processor is configured to: selectively execute a first virtual machine using the processor queue; while executing the first virtual machine, maintain the first queue as a copy of data in the processor queue; selectively execute a second virtual machine using the processor queue; and while executing the second virtual machine, maintain the second queue as a copy of data in the processor queue.

    摘要翻译: 与无线网络无线通信的系统。 该系统包括一个存储器和一个处理器。 存储器被配置为存储第一队列,第二队列和处理器队列。 所述处理器被配置为:使用所述处理器队列选择性地执行第一虚拟机; 在执行第一虚拟机的同时,将第一队列保持为处理器队列中的数据副本; 使用所述处理器队列选择性地执行第二虚拟机; 并且在执行第二虚拟机时,将第二队列保持为处理器队列中的数据副本。

    Enhanced association for access points
    5.
    发明授权
    Enhanced association for access points 有权
    增强接入点关联

    公开(公告)号:US08787572B1

    公开(公告)日:2014-07-22

    申请号:US13397536

    申请日:2012-02-15

    IPC分类号: H04L12/54

    摘要: Techniques and systems for associating a client with an access point using a security protocol are described. A described technique includes initiating an association request; establishing an association between a first device and a second device different from the first device based on the association request; participating in a handshake including exchanging an operational key between the first device and the second device during the handshake; and entering an operational phase using the operational key when the handshake is successful. Participating in the handshake can include participating in an authenticated handshake when the association request indicates an authenticated access, and participating in an unauthenticated handshake when the association request indicates an unauthenticated access.

    摘要翻译: 描述了使用安全协议将客户端与接入点相关联的技术和系统。 所描述的技术包括启动关联请求; 基于所述关联请求,建立与所述第一设备不同的第一设备和第二设备之间的关联; 参与握手,包括在握手期间在第一设备和第二设备之间交换操作键; 并且当握手成功时,使用操作键进入操作阶段。 参与握手可以包括当关联请求指示经认证的访问时参与经认证的握手,并且当关联请求指示未经身份验证的访问时参与未认证的握手。

    All-in-one wireless network device
    6.
    发明授权
    All-in-one wireless network device 有权
    一体化无线网络设备

    公开(公告)号:US08018892B1

    公开(公告)日:2011-09-13

    申请号:US12845315

    申请日:2010-07-28

    IPC分类号: H04W4/00

    CPC分类号: G06F9/455 H04W88/10

    摘要: A method, apparatus, and computer-readable media for a wireless network device for communicating with a network comprises a memory to store an image comprising a plurality of virtual machines and only one multi-tasking operating system, wherein each of the virtual machines comprises a wireless network application to execute on the multi-tasking operating system; a processor to execute the virtual machines; and a port comprising a physical-layer device to communicate with the network, and a media access controller to communicate with the physical-layer device and the processor.

    摘要翻译: 一种用于与网络通信的无线网络设备的方法,装置和计算机可读介质包括存储器,用于存储包括多个虚拟机和仅一个多任务操作系统的图像,其中每个虚拟机包括 无线网络应用在多任务操作系统上执行; 一个执行虚拟机的处理器; 以及包括与网络通信的物理层设备的端口,以及媒体访问控制器,用于与物理层设备和处理器进行通信。

    All-in-one wireless network device
    8.
    发明授权
    All-in-one wireless network device 有权
    一体化无线网络设备

    公开(公告)号:US07768959B1

    公开(公告)日:2010-08-03

    申请号:US10829131

    申请日:2004-04-21

    IPC分类号: H04Q7/24

    CPC分类号: G06F9/455 H04W88/10

    摘要: A method, apparatus, and computer-readable media for a wireless network device for communicating with a network comprises a memory to store an image comprising a plurality of virtual machines and only one multi-tasking operating system, wherein each of the virtual machines comprises a wireless network application to execute on the multi-tasking operating system; a processor to execute the virtual machines; and a port comprising a physical-layer device to communicate with the network, and a media access controller to communicate with the physical-layer device and the processor.

    摘要翻译: 一种用于与网络通信的无线网络设备的方法,装置和计算机可读介质包括存储器,用于存储包括多个虚拟机和仅一个多任务操作系统的图像,其中每个虚拟机包括 无线网络应用在多任务操作系统上执行; 一个执行虚拟机的处理器; 以及包括与网络通信的物理层设备的端口,以及媒体访问控制器,用于与物理层设备和处理器进行通信。

    Configuration of a network device
    9.
    发明授权
    Configuration of a network device 有权
    配置网络设备

    公开(公告)号:US08818261B1

    公开(公告)日:2014-08-26

    申请号:US13411014

    申请日:2012-03-02

    IPC分类号: H04B7/15

    摘要: In one aspect, a wireless station includes a transmitter to wirelessly transmit discovery packets to a proximately located network device, a receiver to wirelessly receive an input from the proximately located network device, an engine to manage a configuration of the network device, and a power selector to control a power level output by the transmitter, enable transmission at a first power during configuration of the proximately located network device, and enable transmission at a second power after configuration of the proximately located network device, wherein the first power is different than the second power, and the first power helps prevent snooping during the configuration.

    摘要翻译: 在一个方面,无线站包括发射机,用于将发现分组无线地发送到位于近端的网络设备,接收机无线地接收来自位于近端的网络设备的输入,用于管理网络设备的配置的引擎和功率 选择器,用于控制由发射机输出的功率电平,在配置邻近定位的网络设备期间实现以第一功率的传输,并且在配置接近定位的网络设备之后使得能够以第二功率进行传输,其中第一功率不同于 第二个功率,第一个功率有助于防止在配置期间窥探。

    Direct link setup mechanisms for wireless LANs
    10.
    发明授权
    Direct link setup mechanisms for wireless LANs 有权
    无线局域网的直接链接建立机制

    公开(公告)号:US08432920B2

    公开(公告)日:2013-04-30

    申请号:US11523407

    申请日:2006-09-19

    IPC分类号: H04L12/28

    CPC分类号: H04W88/06 H04W76/14 H04W84/12

    摘要: Apparatus having corresponding methods and computer programs comprise a communication circuit to establish an infrastructure mode wireless connection with a wireless client through a wireless access point, and to establish a direct link setup (DLS) mode wireless connection with the wireless client; and a control circuit to select either infrastructure mode or DLS mode for communication with the wireless client based on at least one characteristic of the infrastructure mode and DLS mode wireless connections; wherein the communication circuit exchanges frames of data with the wireless client using the selected mode.

    摘要翻译: 具有相应方法和计算机程序的装置包括通过无线接入点建立与无线客户端的基础设施模式无线连接的通信电路,并建立与无线客户端的直接链路建立(DLS)模式无线连接; 以及控制电路,用于基于所述基础设施模式和DLS模式无线连接的至少一个特征来选择用于与所述无线客户端通信的基础设施模式或DLS模式; 其中所述通信电路使用所选择的模式与所述无线客户端交换数据帧。