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    Power-modulated inductively coupled plasma spectrometry
    3.
    发明授权
    Power-modulated inductively coupled plasma spectrometry 失效
    功率调制电感耦合等离子体光谱法

    公开(公告)号：US06222186B1

    公开(公告)日：2001-04-24

    申请号：US09104754

    申请日：1998-06-25

    申请人： Gangqiang Li ,  Thomas P. Doherty ,  Carl A. Myerholtz

    发明人： Gangqiang Li ,  Thomas P. Doherty ,  Carl A. Myerholtz

    IPC分类号： H01J4900

    CPC分类号： H01J49/105

    摘要： A technique that modulates the power of a inductively coupled plasma (ICP) according to the operative modes of a spectrometer. An analytical apparatus of the present invention contains an inductively coupled plasma generator (ICPG) and a spectrometer. The ICPG generates a plasma for forming ionic and excited molecular species from a sample. The spectrometer analyzes the ionic and excited molecular species formed. The spectrometer operates in an analysis mode wherein the ionic and excited molecular species are identified according to physical characteristics of the species to provide data on the species and further has a washout mode wherein the spectrometer flushes out interfering ions and molecules and provides no significant data on the sample. The controller modulates the ICPG to operate in power cycles, at each cycle the ICPG operates in an analysis period and a stand-by period. By modulating the plasma power, the power consumption and heat dissipation can be reduced. When such a power modulated plasma source is coupled to, for example, a time-of-flight mass spectrometer (TOFMS), high analytical performance can be achieved with simultaneous multi-element detection capability.

    摘要翻译： 根据光谱仪的操作模式调制感应耦合等离子体（ICP）的功率的技术。 本发明的分析装置包含电感耦合等离子体发生器（ICPG）和光谱仪。 ICPG产生用于从样品形成离子和激发的分子物质的等离子体。 光谱仪分析形成的离子和激发的分子物质。 光谱仪以分析模式工作，其中根据物种的物理特性鉴定离子和激发的分子种类，以提供物种数据，并且还具有洗脱模式，其中光谱仪冲洗干扰离子和分子，并且不提供关于 例子。 控制员调控ICPG在动力循环中运行，ICPG在分析周期和待机期间运行的每个周期。 通过调制等离子体功率，可以降低功耗和散热。 当这种功率调制等离子体源耦合到例如飞行时间质谱仪（TOFMS）时，可以通过同时多元素检测能力实现高分析性能。

    Power-modulated inductively coupled plasma spectrometry
    4.
    发明授权
    Power-modulated inductively coupled plasma spectrometry 有权

    公开(公告)号：US06242735B1

    公开(公告)日：2001-06-05

    申请号：US09586258

    申请日：2000-05-31

    申请人： Gangqiang Li ,  Thomas P. Doherty ,  Carl A. Myerholtz

    发明人： Gangqiang Li ,  Thomas P. Doherty ,  Carl A. Myerholtz

    IPC分类号： H01J4904

    CPC分类号： H01J49/105

    摘要： A technique that modulates the power of a inductively coupled plasma (ICP) according to the operative modes of a spectrometer. An analytical apparatus of the present invention contains an inductively coupled plasma generator (ICPG) and a spectrometer. The ICPG generates a plasma for forming ionic and excited molecular species from a sample. The spectrometer analyzes the ionic and excited molecular species formed. The spectrometer operates in an analysis mode wherein the ionic and excited molecular species are identified according to physical characteristics of the species to provide data on the species and further has a washout mode wherein the spectrometer flushes out interfering ions and molecules and provides no significant data on the sample. The controller modulates the ICPG to operate in power cycles, at each cycle the ICPG operates in an analysis period and a stand-by period. By modulating the plasma power, the power consumption and heat dissipation can be reduced. When such a power modulated plasma source is coupled to, for example, a time-of-flight mass spectrometer (TOFMS), high analytical performance can be achieved with simultaneous multi-element detection capability.

    Multiplexing capillary array for atmospheric pressure ionization-mass spectrometry
    5.
    发明授权
    Multiplexing capillary array for atmospheric pressure ionization-mass spectrometry 有权
    用于大气压电离质谱的多重毛细管阵列

    公开(公告)号：US06649908B2

    公开(公告)日：2003-11-18

    申请号：US09960890

    申请日：2001-09-20

    申请人： James A. Apffel, Jr. ,  Hongfeng Yin ,  Thomas P. Doherty

    发明人： James A. Apffel, Jr. ,  Hongfeng Yin ,  Thomas P. Doherty

    IPC分类号： H01J4904

    CPC分类号： H01J49/107 ,  G01N30/466 ,  G01N30/7266 ,  G01N2030/628 ,  G01N2030/8411 ,  H01J49/04 ,  G01N2030/162 ,  G01N2030/202

    摘要： A transfer capillary and interface are provided that allow samples from multiple fluid streams to be introduced into a single mass analyzer. The transfer capillary has two or more channels and is placed between a first chamber, in which ions from the multiple fluid streams are generated, and a second chamber that is in fluid communication with a mass analyzer. The interface includes ionizers that generate ionized sample from each fluid stream and that direct the ionized sample toward the channels of the transfer capillary. The transfer capillary includes a multiplex selector that allows ions to flow through a selected subset of channels and sequentially changes which of the channels are included in the subset of channels through which ions flow.

    摘要翻译： 提供了一种转移毛细管和界面，可将来自多个流体流的样品引入单个质量分析仪。 转移毛细管具有两个或更多个通道并且放置在其中产生来自多个流体流的离子的第一室和与质量分析器流体连通的第二室。 该界面包括从每个流体流产生离子化样品并将离子化样品导向转移毛细管的通道的电离器。 转移毛细管包括多路复用选择器，其允许离子流过选定的通道子集，并且顺序地改变哪些通道包括在离子流过的通道子集中。

    System and method for OTA over CDMA data channel
    6.
    发明授权
    System and method for OTA over CDMA data channel 有权
    CDMA数据通道OTA的系统和方法

    公开(公告)号：US06577614B1

    公开(公告)日：2003-06-10

    申请号：US09321056

    申请日：1999-05-27

    申请人： Charles I. Cook ,  Michael J. Fargano ,  Blake Russo ,  Thomas P. Doherty

    发明人： Charles I. Cook ,  Michael J. Fargano ,  Blake Russo ,  Thomas P. Doherty

    IPC分类号： H04Q724

    CPC分类号： H04W76/20 ,  H04W76/10 ,  H04W92/02 ,  H04W92/10

    摘要： A system and method for over the air transmissions over a code division multiple access (CDMA) data channel is provided. A system comprises a data network, a server, and a base station in communication with the data network and configured to receive an update parameter from the server. The base station is further configured to establish a CDMA data channel between the mobile client and the base station, and the base is configured to send the update parameter from the base station to the mobile client over the data channel. The update parameter is sent in accordance with a CDMA air interface standard (such as IS-95) and a CDMA data channel standard for data services (such as IS-707).

    摘要翻译： 提供了一种用于通过码分多址（CDMA）数据信道进行空中传输的系统和方法。 系统包括与数据网络通信并被配置为从服务器接收更新参数的数据网络，服务器和基站。 基站还被配置为在移动客户端和基站之间建立CDMA数据信道，并且基站被配置为通过数据信道从基站向移动客户端发送更新参数。 更新参数根据CDMA空中接口标准（例如IS-95）和用于数据业务的CDMA数据信道标准（如IS-707）发送。

    System and method for controlling data access
    7.
    发明授权
    System and method for controlling data access 有权
    用于控制数据访问的系统和方法

    公开(公告)号：US06460081B1

    公开(公告)日：2002-10-01

    申请号：US09314442

    申请日：1999-05-19

    申请人： Thomas P. Doherty ,  F. Warren Leblanc ,  James R. Corliss ,  Charles I. Cook

    发明人： Thomas P. Doherty ,  F. Warren Leblanc ,  James R. Corliss ,  Charles I. Cook

    IPC分类号： G06F15173

    CPC分类号： H04L29/12009 ,  H04L29/12783 ,  H04L61/35 ,  H04L63/08

    摘要： A system and method for controlling data access by a user device on a network utilizes a subscriber database cataloging the device identity and the corresponding dynamic address. The system includes an interworking function device operative to receive a call from the user device. The user device has a corresponding dynamic address. The interworking function device sends a message to the subscriber database indicating the device identity and the corresponding dynamic address. The sent information is cataloged at the subscriber database to allow the server, when the server receives the corresponding dynamic address, to retrieve the device identity from the subscriber database and to control data access over the network based on the device identity.

    摘要翻译： 用于控制网络上的用户设备的数据访问的系统和方法利用编目设备身份和对应的动态地址的用户数据库。 该系统包括操作用于从用户设备接收呼叫的互通功能设备。 用户设备具有相应的动态地址。 互通功能设备向用户数据库发送指示设备身份和相应动态地址的消息。 所发送的信息在订户数据库中编目，以允许服务器在服务器接收到相应的动态地址时从用户数据库中检索设备标识，并根据设备标识控制网络上的数据访问。

    Integrated sample preparation, separation and introduction microdevice for inductively coupled plasma mass spectrometry
    9.
    发明授权
    Integrated sample preparation, separation and introduction microdevice for inductively coupled plasma mass spectrometry 有权

    公开(公告)号：US06610978B2

    公开(公告)日：2003-08-26

    申请号：US09820321

    申请日：2001-03-27

    申请人： Hongfeng Yin ,  Thomas P. Doherty ,  Sally A Swedberg

    发明人： Hongfeng Yin ,  Thomas P. Doherty ,  Sally A Swedberg

    IPC分类号： H01J4900

    CPC分类号： H01J49/045 ,  H01J49/0018 ,  H01J49/105

    摘要： The present invention relates to microdevices for introducing a small volume of a fluid sample into an ionization chamber. The microdevices are constructed from a substrate having a first and second opposing surfaces, the substrate having a microchannel formed in the first surface, and a cover plate arranged over the first surface, the cover plate in combination with the microchannel defining a conduit for conveying the sample. A sample inlet port is provided in fluid communication with the microchannel, wherein the sample inlet port allows the fluid sample from an external source to be conveyed in a defined sample flow path that travels, in order, through the sample inlet port, the conduit and a sample outlet port and into the ionization chamber. Optionally, the fluid sample undergoes a chemical or biochemical reaction within an integrated portion of the microdevice before reaching the ionization chamber. A nebulizing means nebulizes the fluid sample in a nebulizing region adjacent to the sample outlet port. The invention also relates to a method for introducing a fluid sample using the microdevice.