System and Method for Identifying the Path or Devices on the Path of a Communication Signal Using (1+r(T)) Amplitude Modulation
    41.
    发明申请
    System and Method for Identifying the Path or Devices on the Path of a Communication Signal Using (1+r(T)) Amplitude Modulation 失效
    使用(1 + r(T))幅度调制识别通信信号路径上的路径或设备的系统和方法

    公开(公告)号:US20080248745A1

    公开(公告)日:2008-10-09

    申请号:US10586744

    申请日:2005-05-11

    IPC分类号: H04B3/36

    CPC分类号: H04B7/155

    摘要: A system and method of applying a known modification to a signal to enable a determination of a signal received by a first node is received directly from a second node or indirectly through a repeater. The repeater receives a primary signal and creates a secondary signal as a function of the primary signal and a known modification, wherein the known modification identifies the repeater. The primary signal is transmitted and injected with the secondary signal as the first signal to the primary receiver.

    摘要翻译: 直接从第二节点或通过中继器间接接收对信号应用已知修改以实现由第一节点接收的信号的确定的系统和方法。 中继器接收主信号并产生作为主信号和已知修改的函数的次信号,其中已知修改识别中继器。 主信号以辅助信号作为第一信号被发送和注入到主接收机。

    Method and Apparatus For Determining the Oxygen Permeability of a Polymer
    42.
    发明申请
    Method and Apparatus For Determining the Oxygen Permeability of a Polymer 有权
    用于确定聚合物的透氧性的方法和装置

    公开(公告)号:US20080233006A1

    公开(公告)日:2008-09-25

    申请号:US11815489

    申请日:2006-02-24

    IPC分类号: B01J19/00 G01N15/08

    CPC分类号: G01N15/0826 Y10T436/20

    摘要: The present invention is relates to an apparatus and method for the determination of the oxygen gas permeability of a polymer. In one embodiment, the present invention relates to an apparatus and method for determining the oxygen gas permeability of a polymer membrane (e.g., a polydimethylsiloxane and/or polysiloxane polymer or copolymer). In still another embodiment, the present invention relates to oxygen gas permeable polymer compositions.

    摘要翻译: 本发明涉及一种用于测定聚合物的氧气渗透性的装置和方法。 在一个实施方案中,本发明涉及用于测定聚合物膜(例如聚二甲基硅氧烷和/或聚硅氧烷聚合物或共聚物)的氧气渗透性的装置和方法。 在另一个实施方案中,本发明涉及氧气可透过的聚合物组合物。

    METHOD FOR ANGLE OF ARRIVAL DETERMINATION ON FREQUENCY HOPPING AIR INTERFACES
    43.
    发明申请
    METHOD FOR ANGLE OF ARRIVAL DETERMINATION ON FREQUENCY HOPPING AIR INTERFACES 有权
    频率选择空气界面上的方位角测量方法

    公开(公告)号:US20080200184A1

    公开(公告)日:2008-08-21

    申请号:US12111346

    申请日:2008-04-29

    IPC分类号: H04Q7/20

    CPC分类号: H04B1/713

    摘要: A method for calibrating an antenna and signal processing system enabling angle of arrival (AOA) determination for a frequency hopping signal, in which a calibration coefficient is determined in response to one or more calibration signals injected into the system at one or more of the frequencies in the hopping sequence and proximate in time to reception of the communication signal. The calibration coefficients are reflective of a frequency and time dependent parameter of a path between the antenna and wireless location sensor. The AOA is determined as a function of the calibration coefficient and the radio frequency energy of the received communication signal. Several embodiment of the method are illustrated.

    摘要翻译: 一种校准天线和信号处理系统的方法,所述天线和信号处理系统使得能够对跳频信号进行确定(AOA),所述跳频信号响应于在一个或多个频率处注入到系统中的一个或多个校准信号来确定校准系数 在跳频序列中并且在时间上接近通信信号。 校准系数反映了天线和无线位置传感器之间路径的频率和时间相关参数。 AOA被确定为接收到的通信信号的校准系数和射频能量的函数。 示出了该方法的几个实施例。

    Amphiphilic networks, implantable immunoisolatory devices and methods of preparation
    45.
    发明授权
    Amphiphilic networks, implantable immunoisolatory devices and methods of preparation 有权
    两亲网络,可植入免疫隔离装置及其制备方法

    公开(公告)号:US06365171B1

    公开(公告)日:2002-04-02

    申请号:US09433660

    申请日:1999-11-04

    IPC分类号: A61F1300

    摘要: The present invention provides high mechanical strength amphiphilic polymer networks and implantable biological devices that are capable of encasing and, thus, immunoisolating biological material from the immunological response of a host individual. The present invention also provides methods for the formation of the amphiphilic networks and implantable biological devices. The present invention also provides a method for the treatment of type I diabetes mellitus comprising the steps of encasing a sufficient amount of islet of Langerhans cells within said biological device, wherein said biological device is capable of immunoisolating said encased islet cells upon implantation into an individual; implanting said biological device into a diabetic host individual; allowing said implanted biological device to remain implanted said diabetic individual for a time sufficient to normalize the blood glucose level in said diabetic individual.

    摘要翻译: 本发明提供了高机械强度的两亲性聚合物网络和可植入的生物学装置,其能够将生物材料免于宿主个体的免疫反应。 本发明还提供了形成两亲网络和可植入生物装置的方法。 本发明还提供了一种治疗I型糖尿病的方法,包括以下步骤:在所述生物装置内​​包含足够量的朗格汉斯细胞胰岛,其中所述生物装置能够在植入个体时对所述包封的胰岛细胞进行免疫隔离 ; 将所述生物学装置植入糖尿病宿主个体中; 允许所述植入的生物装置保持植入所述糖尿病个体足够的时间以使所述糖尿病个体中的血糖水平归一化。

    Dynamic star polymers and a method for the synthesis thereof
    46.
    发明授权
    Dynamic star polymers and a method for the synthesis thereof 失效
    动态星形聚合物及其合成方法

    公开(公告)号:US6130291A

    公开(公告)日:2000-10-10

    申请号:US90443

    申请日:1998-06-04

    CPC分类号: C08F297/00 C08L53/00

    摘要: A dynamic star polymer contains a plurality of at least three substantially identical block copolymers, each block copolymer including an aromatic polymer moiety having a glass transition temperature of at least about 95.degree. C., and an aliphatic polymer moiety incompatible with the aromatic polymer moiety. The aromatic moieties of each of the formed block copolymers aggregate to form a chemically uncrosslinked core, while the aliphatic polymer moieties radiate outwardly from the core. The multi-arm star polymer is uniquely capable of changing its molecular structure under external influences, and the core thereof preferably exhibits thermoplastic characteristics.

    摘要翻译: 动态星形聚合物包含多个至少三个基本相同的嵌段共聚物,每个嵌段共聚物包括具有至少约95℃的玻璃化转变温度的芳族聚合物部分和与芳族聚合物部分不相容的脂族聚合物部分。 每个形成的嵌段共聚物的芳族部分聚集形成化学上未交联的核心,而脂族聚合物部分从芯部向外辐射。 多臂星形聚合物在外部影响下独特地能够改变其分子结构,其核心优选表现出热塑性。

    Higher order star polymers having multiple polyisobutylene arms
radiating from a condensed core of siloxanes and a method for the
synthesis thereof
    47.
    发明授权
    Higher order star polymers having multiple polyisobutylene arms radiating from a condensed core of siloxanes and a method for the synthesis thereof 失效
    具有从硅氧烷的凝聚核心辐射的多个聚异丁烯臂的高级星形聚合物及其合成方法

    公开(公告)号:US5856392A

    公开(公告)日:1999-01-05

    申请号:US861395

    申请日:1997-05-21

    CPC分类号: C08G81/024 C08G77/442

    摘要: The synthesis and characterization of novel higher order, multi-arm star polymers comprising polyisobutylene arms connected to condensed cyclosiloxane cores are described. The synthesis has been achieved by hydrosilating olefin-capped (e.g., allyl- or isopropenyl-terminated) polyisobutylene with hydrogencyclosiloxanes carrying a plurality of Si--H groups and simultaneously and competitively converting SiH functions, in the presence of moisture, to Si--OH groups to rapidly self-condense or react with SiH groups to form coupled cyclosiloxane cores via core-core coupling. Thus, higher order stars having many more arms than first order stars can be formed.

    摘要翻译: 描述了包含连接到缩合环硅氧烷核心的聚异丁烯臂的新型高级多臂星形聚合物的合成和表征。 合成已经通过将烯烃封端(例如,烯丙基或异丙​​烯基封端的)聚异丁烯与携带多个Si-H基团的水合羟基硅氧烷进行氢化硅烷化,并且在水分存在下同时并且竞争性地将SiH官能团转化为Si-OH基团 快速自我冷凝或与SiH基团反应,通过芯 - 芯耦合形成偶联的环硅氧烷核心。 因此,可以形成具有比一阶恒星多的臂的高阶恒星。

    Cationic multiblock thermoplastic elastomers
    49.
    发明授权
    Cationic multiblock thermoplastic elastomers 失效
    阳离子多嵌段热塑性弹性体

    公开(公告)号:US5663234A

    公开(公告)日:1997-09-02

    申请号:US490969

    申请日:1995-06-15

    IPC分类号: C08G69/00 C08G81/02 C08L77/00

    CPC分类号: C08G81/028

    摘要: The synthesis and characterization of a series of novel (AB).sub.n multiblock copolymers, typically thermoplastic elastomers, containing polyisobutylene as the soft phase and polyamides as the hard phase are described. First, carboxyl ditelechelic polyisobutylene prepolymers and isocyanate ditelechelic polyisobutylene prepolymers were synthesized, both of which were subsequently reacted under solution polycondensation conditions with dicarboxylic acids and diisocyanates. The melting points of the polyamide hard phases were in the 223.degree.-284.degree. C. range. The decomposition temperatures (296.degree.-337.degree. C.) in air and nitrogen of these thermoplastic elastomers were quite similar; in contrast, these properties of polytetrahydrofuran-based thermoplastic elastomers are noticeably lower in air. Melt processing of these novel polyisobutylene-based thermoplastic elastomers is possible.

    摘要翻译: 描述了一系列新型(AB)n多嵌段共聚物(通常为热塑性弹性体),包含聚异丁烯作为软相和聚酰胺作为硬相的合成和表征。 首先,合成羧基双异戊烯聚异丁烯预聚物和异氰酸酯双特异聚异丁烯预聚物,两者均在溶液缩聚条件下与二羧酸和二异氰酸酯反应。 聚酰胺硬相的熔点在223℃-284℃的范围内。 这些热塑性弹性体在空气和氮气中的分解温度(296〜-337℃)非常相似; 相比之下,聚四氢呋喃基热塑性弹性体的这些性质在空气中显着降低。 这些新型聚异丁烯类热塑性弹性体的熔融加工是可能的。

    Thermoplastic elastomers of isobutylene and process of preparation
    50.
    再颁专利
    Thermoplastic elastomers of isobutylene and process of preparation 失效
    异丁烯的热塑性弹性体及其制备方法

    公开(公告)号:USRE34640E

    公开(公告)日:1994-06-14

    申请号:US875082

    申请日:1992-04-28

    CPC分类号: C08F297/06 C08F297/00

    摘要: Block copolymers compose a polyisobutylene rubbery soft segment of M.sub.n of about 5,000 to above 500,000 and glassy hard segments of M.sub.n of about 5,000 or higher and usually about 10,000 to 35,000 or more, are made by preparing a living polymer block of the polyisobutylene and then polymerizing on said living polyisobutylene block the glassy hard segments by adding thereto an electron donor having a donor number of 15 to 50 and then adding and polymerizing the monomers for the glassy hard segments. The monomers for the glassy hard segments are styrene and its derivatives and indene and its derivatives and mixtures thereof.

    摘要翻译: 嵌段共聚物通过制备聚异丁烯的活性聚合物嵌段而制备约5,000至500,000以上的上链&Mn的聚异丁烯橡胶状软链段和约5000或更高,通常约10,000-35,000或更高的玻璃状硬链段, 然后在所述活性聚异丁烯上聚合,通过向其中加入供体数为15至50的电子给体,然后加入并聚合用于玻璃状硬链段的单体,阻断玻璃状硬链段。 玻璃状硬链段的单体是苯乙烯及其衍生物和茚及其衍生物及其混合物。