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120 条记录 (耗时 0.03 秒)

    System and methods of mobile geolocation
    1.
    发明授权
    System and methods of mobile geolocation 有权
    移动地理位置的系统和方法

    公开(公告)号：US08874133B2

    公开(公告)日：2014-10-28

    申请号：US13311132

    申请日：2011-12-05

    申请人： Michael Joseph Flanagan ,  Mohsen Zadeh-Koochak ,  Li-Peng Wang

    发明人： Michael Joseph Flanagan ,  Mohsen Zadeh-Koochak ,  Li-Peng Wang

    IPC分类号： H04W24/00

    CPC分类号： G01S5/0252 ,  H04W64/00

    摘要： A method and system for a cellular mobile communication system (900) are provided. The location of a mobile communication unit (905) in the cellular wireless communications system (900) can be estimated from: a first estimate of position, based on received signal power difference for signals received by the mobile communication unit (905) from at least two base stations (910); and a second estimate of the position of the mobile communication unit (905), from further information. A likelihood function for each estimate is weighted. The weighted first and second likelihood functions are combined, and one or more locations are selected as the estimated location. Propagation model parameters may be iteratively updated and/or refined, using location estimates obtained for large numbers of calls in the cellular mobile communication system (900).

    摘要翻译： 提供了一种用于蜂窝移动通信系统（900）的方法和系统。 蜂窝无线通信系统（900）中的移动通信单元（905）的位置可以从以下各项估计：基于从移动通信单元（905）至少接收到的信号的接收信号功率差的位置的第一估计 两个基站（910）; 以及来自更多信息的移动通信单元（905）的位置的第二估计。 对每个估计的似然函数进行加权。 加权的第一和第二似然函数被组合，并且选择一个或多个位置作为估计位置。 可以使用在蜂窝移动通信系统（900）中针对大量呼叫获得的位置估计来迭代地更新和/或改进传播模型参数。

    Data retention of ferroelectric films by controlling film composition and strain gradient for probe-based devices
    2.
    发明授权
    Data retention of ferroelectric films by controlling film composition and strain gradient for probe-based devices 有权
    通过控制基于探针的器件的膜组成和应变梯度来数据保留铁电体膜

    公开(公告)号：US08644050B2

    公开(公告)日：2014-02-04

    申请号：US12420717

    申请日：2009-04-08

    申请人： Li-Peng Wang ,  Qing Ma ,  Valluri Rao

    发明人： Li-Peng Wang ,  Qing Ma ,  Valluri Rao

    IPC分类号： G11C11/22

    CPC分类号： G11B9/02 ,  G11B9/04

    摘要： For a probe based data storage (PDS) device a ferroelectric film stack may be used as a media to store data bits by polarizing areas of the film as either an up domain or a down domain to represent bits. However a built-in-bias field (BBF) may create domain retention problems. By growing the ferroelectric films with stress and composition gradients this may generate polarization gradients which reduce the bias field. Thus, the retention (or imprint) may be improved with minimized BBF.

    摘要翻译： 对于基于探针的数据存储（PDS）设备，可以使用铁电膜堆叠作为媒体以通过将胶片的区域偏置为向上域或向下域来表示位来存储数据位。 然而，内置偏置字段（BBF）可能会创建域保留问题。 通过生长具有应力和成分梯度的铁电薄膜，这可能产生减小偏压场的偏振梯度。 因此，可以通过最小化BBF来改善保留（或印记）。

    Piezoelectric sensor dynamic range improvement
    3.
    发明授权
    Piezoelectric sensor dynamic range improvement 有权
    压电传感器动态范围改进

    公开(公告)号：US08499630B2

    公开(公告)日：2013-08-06

    申请号：US12059009

    申请日：2008-03-31

    申请人： Friedel Gerfers ,  Li-Peng Wang

    发明人： Friedel Gerfers ,  Li-Peng Wang

    IPC分类号： G01P15/125

    CPC分类号： G01P15/125 ,  G01P15/09

    摘要： A MEMS piezoelectric sensor comprises a plurality of capacitors some of which may be used for sensing and others used for feedback. The capacitors may be switched to connect or disconnect selected capacitors from the sensor. Embodiments convert a two port sensor into a four port sensor without significant changes in hardware design and improve SNR and correct for offset and out-of-axis errors due to process mismatch and variations.

    摘要翻译： MEMS压电传感器包括多个电容器，其中一些电容器可用于感测，其它电容器用于反馈。 可以切换电容器以连接或断开选定的电容器与传感器的连接。 实施例将两端口传感器转换成四端口传感器，而不会在硬件设计中发生显着变化，并改善SNR并纠正由于过程不匹配和变化引起的偏移和轴外误差。

    ARRANGEMENT AND METHOD TO PERFORM SCANNING READOUT OF FERROELECTRIC BIT CHARGES
    4.
    发明申请
    ARRANGEMENT AND METHOD TO PERFORM SCANNING READOUT OF FERROELECTRIC BIT CHARGES 审中-公开
    执行扫描电容读取的布置和方法

    公开(公告)号：US20130003521A1

    公开(公告)日：2013-01-03

    申请号：US13608878

    申请日：2012-09-10

    申请人： Quan Anh Tran ,  Byong M. Kim ,  Robert N. Stark ,  Nathan R. Franklin ,  Qing Ma ,  Valluri Rao ,  Donald E. Adams ,  Li-Peng Wang ,  Yevgeny V. Anoikin

    发明人： Quan Anh Tran ,  Byong M. Kim ,  Robert N. Stark ,  Nathan R. Franklin ,  Qing Ma ,  Valluri Rao ,  Donald E. Adams ,  Li-Peng Wang ,  Yevgeny V. Anoikin

    IPC分类号： G11B9/02

    CPC分类号： G11B9/02 ,  B82Y10/00 ,  G11B9/1409

    摘要： An arrangement, a method and a system to read information stored in a layer of ferroelectric media. The arrangement includes a layer including a ferroelectric media having one or more ferroelectric domains holding bit charges, a domain corresponding to information; a probe having a tip, wherein the media and the tip are adapted to move relative to one another such that the tip scans the ferroelectric domains of the media while applying a contact force to the domains to generate a direct piezoelectric effect within the domains; and circuitry coupled to the tip and adapted to generate a signal in response to an electrical coupling between the tip and the domains while scanning the tip in contact with the domains, the signal corresponding to a readout signal for ferroelectric bit charges stored in the media

    摘要翻译： 读取存储在铁电介质层中的信息的布置，方法和系统。 该布置包括具有一个或多个保持位电荷的铁电畴的铁电介质的层，对应于信息的畴; 具有尖端的探针，其中介质和尖端适于相对于彼此移动，使得尖端扫描介质的铁电畴，同时向畴施加接触力以在畴内产生直接压电效应; 以及耦合到所述尖端并且适于响应于所述尖端和所述域之间的电耦合而产生信号的电路，同时扫描与所述区域接触的尖端，所述信号对应于存储在所述介质中的铁电位电荷的读出信号

    Miniature chemical analysis system
    5.
    发明授权
    Miniature chemical analysis system 有权
    微型化学分析系统

    公开(公告)号：US08178047B2

    公开(公告)日：2012-05-15

    申请号：US12750586

    申请日：2010-03-30

    申请人： Li-Peng Wang ,  Qing Ma

    发明人： Li-Peng Wang ,  Qing Ma

    IPC分类号： G01N29/34

    CPC分类号： G01N30/6095 ,  B82Y15/00 ,  B82Y30/00 ,  G01N29/022 ,  G01N29/036 ,  G01N2030/025 ,  G01N2291/0224 ,  G01N2291/0255 ,  G01N2291/0256 ,  G01N2291/0423 ,  G01N2291/0426 ,  Y10T29/49117

    摘要： An apparatus, according to one aspect, may include a chromatograph and a bulk acoustic resonator. The chromatograph may include a channel that is defined at least partially in a monolithic substrate. The channel may have an inlet to receive a sample and an outlet. A chromatography material may be included in the channel. The bulk acoustic resonator may have a first electrode and a second electrode that has a chemically functionalized surface. The chemically functionalized surface may be included in a chamber that is defined at least partially in the monolithic substrate and that is coupled with the outlet of the channel. Methods of making and using such apparatus, and systems including such apparatus, are also disclosed.

    摘要翻译： 根据一个方面的装置可以包括色谱仪和体声波谐振器。 色谱仪可以包括至少部分地限定在整体式衬底中的通道。 通道可以具有用于接收样品和出口的入口。 色谱材料可以包括在通道中。 体声波谐振器可以具有第一电极和具有化学官能化表面的第二电极。 化学官能化的表面可以包括在至少部分地限定在整体式衬底中并且与通道的出口耦合的室中。 还公开了制造和使用这种装置的方法，以及包括这种装置的系统。

    Resource reservation protocol—traffic engineering with adaptive hot redundancy
    9.
    发明授权
    Resource reservation protocol—traffic engineering with adaptive hot redundancy 有权
    资源预留协议 - 具有自适应热冗余的流量工程

    公开(公告)号：US07929425B1

    公开(公告)日：2011-04-19

    申请号：US12040184

    申请日：2008-02-29

    申请人： Li-Peng Chou

    发明人： Li-Peng Chou

    IPC分类号： H04L1/00

    CPC分类号： H04L1/22

    摘要： A network interface device with resource reservation protocol-traffic engineering capability and improved hot redundancy. A first interface card is provided for receiving a request, which specifies a data session between two host devices in a network, from an adjacent node in the network, and for storing a session parameter based on the request. A standby interface card is provided for receiving a request from the active interface card, based on the request received by the active interface card, and for storing another session parameter, concurrently with a storing of the session parameter by the active interface card, based on the request. Failure detection circuitry is provided for detecting a failure within the active interface card, and for coupling the second interface card to the adjacent node depending on whether or not a failure is detected.

    摘要翻译： 具有资源预留协议 - 流量工程能力和改进的热冗余的网络接口设备。 提供第一接口卡，用于从网络中的相邻节点接收指定网络中的两个主机设备之间的数据会话的请求，并且用于基于该请求存储会话参数。 提供备用接口卡，用于基于活动接口卡接收到的请求接收来自主动接口卡的请求，并且基于主动接口卡与会话参数的存储同时存储另一会话参数，基于 请求。 故障检测电路用于检测有源接口卡内的故障，并根据是否检测到故障将第二接口卡耦合到相邻节点。