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65 条记录 (耗时 0.048 秒)

    Detection of potential forwarding loops in bridged networks
    31.
    发明申请
    Detection of potential forwarding loops in bridged networks 有权
    检测桥接网络中的潜在转发环路

    公开(公告)号：US20070253346A1

    公开(公告)日：2007-11-01

    申请号：US11416348

    申请日：2006-05-01

    申请人： Hien Nguyen ,  Rodney Fong ,  Ravikanth Samprathi ,  Stanley Tang

    发明人： Hien Nguyen ,  Rodney Fong ,  Ravikanth Samprathi ,  Stanley Tang

    IPC分类号： H04L12/28

    CPC分类号： H04L12/462 ,  H04L45/02 ,  H04L45/18 ,  H04L45/48 ,  H04L45/54

    摘要： Disclosed are, inter alia, methods, apparatus, data structures, computer-readable media, mechanisms, and means for detecting potential forwarding loops in bridged networks. A switch monitors the movement of packet addresses in the forwarding table to different ports. If the port associated with an address changes multiple times in a short time duration, then a potential forwarding loop is detected, and a loop corrector is notified to take appropriate action to correct the problem, such as, but not limited to changing the state of a port to a blocking state or disabling an interface, etc. If there are multiple movements outside the short time duration, they may be correct movements adjusting to the actual reconfiguration of a network, and thus, these movements are effectively filtered out of consideration.

    摘要翻译： 公开的方法，装置，数据结构，计算机可读介质，机制和用于检测桥接网络中的潜在转发环路的装置。 交换机监控转发表中分组地址到不同端口的移动。 如果与地址相关联的端口在短时间内改变多次，则检测到潜在的转发环路，并通知循环校正器以采取适当的动作来纠正该问题，例如但不限于改变 端口到阻塞状态或禁用接口等。如果在短时间内存在多个移动，则它们可以是适应网络的实际重新配置的正确移动，因此，这些移动被有效地滤除掉。

    Wireless access point (AP) automatic channel selection
    32.
    发明申请
    Wireless access point (AP) automatic channel selection 有权

    公开(公告)号：US20060094371A1

    公开(公告)日：2006-05-04

    申请号：US11259866

    申请日：2005-10-27

    申请人： Hien Nguyen

    发明人： Hien Nguyen

    IPC分类号： H04B17/00

    CPC分类号： H04W52/50 ,  H04B17/345 ,  H04B17/354 ,  H04B17/382

    摘要： An automatic channel selection (ACS) process enables an access point to determine a best channel available, i.e., the channel with a least amount of interference, for it operation. When ACS is enabled, the access point scans frequencies for all neighboring access points and their signal strengths. Based on this data, the access point then determines which frequency is least likely to be interfered with by these other access points. The access point switches itself to this frequency and begins operation. During normal operation, the access point may periodically rescan the air space and reevaluate its current operating channel. Preferably, every neighboring access point has its own channel, and the co-channel interference levels should be low enough so that there is a maximum coverage and high throughput for the network. If these characteristics cannot be achieved, the access point may then adjust its power automatically to reduce the interference level in the network. This automatic power adjustment (APA) feature preferably operates across a set of access points, each of which has the function. In this manner, the transmitting power of the neighboring access points in the wireless network is “cooperatively” adjusted to minimize the channel interference and maximize the coverage and throughput for the network. A method of determining optimal access point locations for access points that perform the ACS and APA functions is also described.

    Surgical access device and method of constructing same
    35.
    发明授权
    Surgical access device and method of constructing same 失效
    手术进入装置及其构造方法

    公开(公告)号：US5772628A

    公开(公告)日：1998-06-30

    申请号：US600603

    申请日：1996-02-13

    申请人： Steven R. Bacich ,  John P. Greelis ,  Hien Nguyen ,  Tuoc Nguyen

    发明人： Steven R. Bacich ,  John P. Greelis ,  Hien Nguyen ,  Tuoc Nguyen

    IPC分类号： A61B17/34 ,  A61M25/00

    CPC分类号： A61B17/3421 ,  A61B17/3417 ,  A61B17/3431 ,  A61B17/3439 ,  A61B2017/3445

    摘要： A surgical access device comprises an introducer with a main endoscopic channel and an auxiliary or secondary instrument channel. The introducer exhibits an extremely narrow cross-sectional profile in order to minimize the size of the portal or other entry point necessary to gain access into the patient's body, thereby minimizing pain and discomfort to the patient and allowing a wide variety of endoscopic procedures to be performed on an out-patient basis. The narrow profile of the introducer is maintained upon introduction by a guide channel which can be stored in a first position so as to closely conform to the profile of the introducer. The guide channel is provided with a set in order to maintain its stored position upon introduction; however, post introductively, the set in the guide channel can be readily released in order to deploy the guide channel and allow insertion of a secondary surgical instrument. The guide channel can be provided with rails or other tracks in order to ensure accurate movement of the instrument to the desired distal location. The guide channel is constructed from a thin but extremely strong and noncompliant membrane material. The present invention also comprises a method of construction and use of the surgical access device.

    摘要翻译： 外科进入装置包括具有主内窥镜通道和辅助或辅助器械通道的导引器。 引导器呈现非常窄的横截面轮廓，以便最小化进入患者身体所需的入口或其他入口点的尺寸，从而使患者的疼痛和不适最小化，并允许各种内窥镜程序为 以门诊为基础进行。 引导器的狭窄轮廓在通过引导通道被保持时，引导通道可以被存储在第一位置，以便与引入器的轮廓紧密地一致。 引导通道设置有一组，以便在引入时保持其存储位置; 然而，在引导之后，引导通道中的设置可以容易地释放，以便展开引导通道并允许插入辅助手术器械。 引导通道可以设置有轨道或其他轨道，以便确保仪器准确地移动到期望的远端位置。 引导通道由薄但非常坚固和不合格的膜材料构成。 本发明还包括外科进入装置的构造和使用方法。

    Test logic circuit and method for verifying internal logic of an integrated circuit
    36.
    发明授权
    Test logic circuit and method for verifying internal logic of an integrated circuit 失效
    用于验证集成电路的内部逻辑的测试逻辑电路和方法

    公开(公告)号：US5606564A

    公开(公告)日：1997-02-25

    申请号：US444589

    申请日：1995-05-19

    申请人： Son H. Ho ,  Hien Nguyen

    发明人： Son H. Ho ,  Hien Nguyen

    IPC分类号： G01R31/3185 ,  G01R31/28

    CPC分类号： G01R31/3185

    摘要： A test logic circuit for testing the functioning of an integrated circuit containing asynchronous logic and synchronous logic and state machines is provided with a comparison circuit that compares state numbers produced by one of the state machines to a defined target value. The comparison circuit asserts a signal when one of the state numbers is equal to the defined target value. Status latches are coupled to the comparison circuit and latch a status of the asynchronous logic in response to the assertion of the signal by the comparison circuit. The comparing of the state numbers to a defined target value by the comparison circuit in the test logic circuit allows the latching of the status of the asynchronous logic upon the state machine reaching the specified state, and thereby provides the speed necessary to determine the status of the asynchronous logic for a particular state of a state machine in the integrated circuit.

    摘要翻译： 用于测试包含异步逻辑和同步逻辑和状态机的集成电路的功能的测试逻辑电路提供有比较电路，其将状态机之一产生的状态数与定义的目标值进行比较。 当其中一个状态数字等于定义的目标值时，比较电路断言一个信号。 状态锁存器耦合到比较电路并且响应于比较电路对信号的断言而锁存异步逻辑的状态。 通过测试逻辑电路中的比较电路将状态数与定义的目标值进行比较，允许在状态机达到指定状态时锁存异步逻辑的状态，从而提供确定状态的必要速度 用于集成电路中状态机的特定状态的异步逻辑。

    Pressurized product delivery systems
    37.
    发明授权
    Pressurized product delivery systems 失效
    加压产品交付系统

    公开(公告)号：US5510116A

    公开(公告)日：1996-04-23

    申请号：US95611

    申请日：1993-07-21

    申请人： Michael Froix ,  Larry Shipley ,  Christine J. Y. Liau ,  Hien Nguyen ,  Sok L. Khor

    发明人： Michael Froix ,  Larry Shipley ,  Christine J. Y. Liau ,  Hien Nguyen ,  Sok L. Khor

    IPC分类号： A61L9/14 ,  B65D83/14 ,  F17C11/00 ,  A61L9/04

    CPC分类号： B65D83/60 ,  A61L9/14 ,  F17C11/00

    摘要： An apparatus for dispensing pressurized material is comprised of a container, a polymeric matrix having a network of macropores located within the container, and a propellant that may be reversibly sorbed with the network of macropores so as to desorb as the partial pressure of the propellant within the container decreases. The network of pores is substantially non-swellable upon sorption and desorption of the propellant during filling and use of the dispensing apparatus. The polymeric matrix may comprise aggregates of macroporous polymeric particles in which the particles define a substantially non-collapsible pore network and the aggregates define interstitial spaces between the particles, and the interstitial spaces are substantially larger than the pore network.

    摘要翻译： 用于分配加压材料的装置包括容器，具有位于容器内的大孔网络的聚合物基质和可与大孔网络可逆地吸附的推进剂，以便随着推进剂的分压而解吸 容器减少。 在填充和使用分配装置期间，推进剂的吸附和解吸时孔的网络基本上不溶胀。 聚合物基质可以包括大孔聚合物颗粒的聚集体，其中颗粒限定基本上不可塌陷的孔网络，并且聚集体限定颗粒之间的间隙，并且间隙空间基本上大于孔网络。