METHOD AND APPARATUS FOR ENABLING VEHICLE APPLICATIONS USING HETEROGENEOUS WIRELESS DATA PIPES
    2.
    发明申请
    METHOD AND APPARATUS FOR ENABLING VEHICLE APPLICATIONS USING HETEROGENEOUS WIRELESS DATA PIPES 有权
    使用异质无线数据管道实现车辆应用的方法和装置

    公开(公告)号:US20140051456A1

    公开(公告)日:2014-02-20

    申请号:US13585676

    申请日:2012-08-14

    IPC分类号: H04W72/08

    CPC分类号: H04W48/18

    摘要: A method for determining which of a plurality of data connectivity pipes will be used to transmit data for one or more applications operating on a vehicle. The method identifies which of the applications are active at a particular point in time and identifies a number of available configurations based on the number of applications that are active and the number of the data pipes that are available to transmit the data for the application. The method identifies a plurality of performance metrics for each configuration and determines an optimal performance value for each performance metric from all of the configurations. The method then determines an overall utility function for each configuration that is based on its performance metrics and the optimal performance value and selects a data pipe for each application that is active based on a maximum overall utility function from each application's available overall utility functions.

    摘要翻译: 一种用于确定多个数据连接管道中的哪一个将用于传输在车辆上操作的一个或多个应用的​​数据的方法。 该方法识别哪些应用程序在特定时间点处于活动状态,并且基于活动的应用程序的数量和可用于传送应用程序的数据的数据管道的数量来识别可用配置的数量。 该方法识别每个配置的多个性能度量,并且从所有配置确定针对每个性能度量的最佳性能值。 该方法然后根据其性能指标和最佳性能值确定每个配置的整体效用函数,并根据每个应用程序的可用整体效用函数的最大整体效用函数为每个应用程序选择一个数据管道。

    Method for producing aliphatic polyester resin, and an aliphatic polyester resin composition
    3.
    发明授权
    Method for producing aliphatic polyester resin, and an aliphatic polyester resin composition 有权
    脂肪族聚酯树脂的制造方法和脂肪族聚酯树脂组合物

    公开(公告)号:US08173753B2

    公开(公告)日:2012-05-08

    申请号:US12991715

    申请日:2009-05-19

    IPC分类号: C08G63/91

    摘要: A method for producing an aliphatic polyester resin including a melt polymerization step and a subsequent solid phase polymerization step, using a sulfonic acid group-containing compound as a catalyst, wherein the addition amount of the sulfonic acid group-containing compound during melt polymerization is 300 to 3000 ppm with respect to a raw material monomer calculated as sulfur atoms, the content of the sulfonic acid group-containing compound during melt polymerization is 300 to 3000 ppm with respect to a produced polymer calculated as sulfer atoms, and a residual rate of the sulfonic acid group-containing compound after solid phase at polymerization is more than 50.

    摘要翻译: 一种包含熔融聚合步骤和随后的固相聚合步骤的脂族聚酯树脂的制备方法,其中使用含磺酸基化合物作为催化剂,其中在熔融聚合期间含磺酸基的化合物的加入量为300 相对于作为硫原子计算的原料单体,为3000ppm,熔融聚合时的含磺酸基的化合物的含量相对于作为硫原子计算出的聚合度为300〜3000ppm,残留率为 含有磺酸基团的化合物在聚合后固相超过50。

    LIGHT EMITTING ELEMENT DRIVING CIRCUIT
    4.
    发明申请
    LIGHT EMITTING ELEMENT DRIVING CIRCUIT 有权
    发光元件驱动电路

    公开(公告)号:US20120049761A1

    公开(公告)日:2012-03-01

    申请号:US13177420

    申请日:2011-07-06

    IPC分类号: H05B37/02

    摘要: The present disclosure discloses a light emitting element driving circuit. In one embodiment the light emitting element driving circuit may comprise a power conversion circuit and a current balancing circuit. In other embodiment the light emitting element driving circuit may further comprise other modules integrated and interacting with the power conversion circuit and the current balancing circuit, such as fault detection and protection circuits, status indication circuits and phase-shift PWM dimming circuits. In other embodiment, the present disclosure further discloses a current balancing circuit. In other embodiment, the present disclosure further discloses a fault detection and protection circuit. In still other embodiment, the present disclosure further discloses a phase-shift PWM dimming circuit.

    摘要翻译: 本公开公开了一种发光元件驱动电路。 在一个实施例中,发光元件驱动电路可以包括功率转换电路和电流平衡电路。 在另一个实施例中,发光元件驱动电路还可以包括与功率转换电路和电流平衡电路集成并相互作用的其他模块,例如故障检测和保护电路,状态指示电路和相移PWM调光电路。 在另一实施例中,本公开还公开了一种电流平衡电路。 在其他实施例中,本公开还公开了一种故障检测和保护电路。 在另外的实施例中,本公开还公开了一种相移PWM调光电路。

    Method and apparatus for signal carrier-to-noise power density ratio calculation
    5.
    发明授权
    Method and apparatus for signal carrier-to-noise power density ratio calculation 有权
    信号载波噪声功率密度比计算方法和装置

    公开(公告)号:US08054872B2

    公开(公告)日:2011-11-08

    申请号:US12151668

    申请日:2008-05-08

    IPC分类号: H04B3/46 H04B17/00 H04Q1/20

    摘要: There is provided an apparatus for determining a carrier-to-noise power density ratio (CN0) of a spread spectrum signal. The apparatus includes a signal power calculation unit and a conversion unit. The signal power calculation unit determines a signal power indicator indicative of a signal to noise ratio of the spread spectrum signal. The conversion unit is coupled to the signal power calculation unit and stores a lookup table representing a relationship between the signal power indicator and the carrier-to-noise power density ratio. The conversion unit is operable for converting the signal power indicator to the carrier-to-noise power density ratio according to the lookup table.

    摘要翻译: 提供了一种用于确定扩频信号的载波噪声功率密度比(CN0)的装置。 该装置包括信号功率计算单元和转换单元。 信号功率计算单元确定表示扩频信号的信噪比的信号功率指示符。 转换单元耦合到信号功率计算单元,并存储表示信号功率指示符与载波噪声功率密度比之间的关系的查找表。 转换单元可用于根据查找表将信号功率指示符转换为载波噪声功率密度比。

    Apparatus and method for determining GPS tracking loop parameter based on SNR estimation
    6.
    发明授权
    Apparatus and method for determining GPS tracking loop parameter based on SNR estimation 有权
    基于SNR估计确定GPS跟踪环路参数的装置和方法

    公开(公告)号:US07613258B2

    公开(公告)日:2009-11-03

    申请号:US11364768

    申请日:2006-02-28

    IPC分类号: H03D1/04

    CPC分类号: H04B1/7097

    摘要: A method for estimating signal quality of a spread spectrum signal is provided. The method includes squaring a plurality of in-phase correlation results and a plurality of quadrature correlation results, summing each squared in-phase correlation result and the corresponding correlation result to obtain a plurality of sum-of-square values, detecting a peak value among the plurality of sum-of-square results, calculating an average of non-peak values among the plurality of sum-of-square results. The peak value is regarded as a signal power value, while the averaged non-peak values are regarded as an average noise power value. A signal-to-noise ratio is then calculated based on the signal power value and the average noise power value. A method for determining the parameters for the tracking loop is also provided. The method includes estimating the signal-to-noise ratio of the spread spectrum signal, and determining the tracking loop parameters based on the signal-to-noise ratio.

    摘要翻译: 提供了一种用于估计扩频信号的信号质量的方法。 该方法包括对多个同相相关结果和多个正交相关结果进行平方,对每个平方的同相相关结果和相应的相关结果相加以获得多个平方和值,检测其中的峰值 所述多个平方和结果,计算所述多个平方和结果中的非峰值的平均值。 将峰值视为信号功率值,而将平均非峰值视为平均噪声功率值。 然后基于信号功率值和平均噪声功率值来计算信噪比。 还提供了用于确定跟踪环路的参数的方法。 该方法包括估计扩频信号的信噪比,以及基于信噪比确定跟踪环路参数。

    GPS application using network assistance
    7.
    发明申请
    GPS application using network assistance 有权
    GPS应用使用网络协助

    公开(公告)号:US20070072623A1

    公开(公告)日:2007-03-29

    申请号:US11506499

    申请日:2006-08-18

    IPC分类号: H04Q7/20

    摘要: A Global Positioning System (GPS) system comprises a user end, a mobile terminal, a positioning server, a GPS application server, and a base station network. The mobile terminal has a GPS receiver to receive GPS information from a plurality of GPS satellites. The positioning server is coupled to the user end through the network. The GPS application server is coupled to the network for communicating with the positioning server, and has a GPS receiver to receive GPS information from GPS satellites so as to calculate a position of the GPS application server. The geographic position of the GPS application server is known, and GPS assistant information is determined based on the calculated position and the geographic position of the GPS application server. The base station network communicates with the mobile terminal to obtain the GPS information of the mobile terminal and locate the mobile terminal based on the GPS information of the mobile terminal and the GPS assistant information.

    摘要翻译: 全球定位系统(GPS)系统包括用户端,移动终端,定位服务器,GPS应用服务器和基站网络。 移动终端具有从多个GPS卫星接收GPS信息的GPS接收机。 定位服务器通过网络耦合到用户端。 GPS应用服务器耦合到网络以与定位服务器进行通信,并具有GPS接收机,用于从GPS卫星接收GPS信息,以计算GPS应用服务器的位置。 GPS应用服务器的地理位置是已知的,并且基于计算出的GPS应用服务器的位置和地理位置来确定GPS辅助信息。 基站网络与移动终端通信,获取移动终端的GPS信息,并根据移动终端的GPS信息和GPS辅助信息定位移动终端。

    Parallel correlator implementation using block integration for spread-spectrum communication
    8.
    发明申请
    Parallel correlator implementation using block integration for spread-spectrum communication 有权
    使用块集成进行扩频通信的并行相关器实现

    公开(公告)号:US20070002933A1

    公开(公告)日:2007-01-04

    申请号:US11172443

    申请日:2005-06-30

    IPC分类号: H04B1/713

    摘要: An apparatus for processing spread spectrum signals digitized at a predetermined sampling frequency. The apparatus includes an intermediate frequency signal preprocessing unit, a plurality of parallel block integrators. The intermediate frequency signal preprocessing unit is capable of generating pre-integration results based on an input signal and local reference signals at a predetermined rate. The pre-integration results Produced by the intermediate frequency signal preprocessing unit are grouped into sets of pre-integration results. Each set of the pre-integration results contains a predetermined number of pre-integration results. The plurality of parallel block integrators is in communication with the intermediate frequency signal preprocessing unit. Each of the block integrators is capable of receiving, in succession, sets of a predetermined number of pre-integration results, and for each set of predetermined number of pre-integration results, each of the block integrators is capable of performing a plurality of partial correlations based on the set of the predetermined number of pre-integration results and a plurality of shifted segments of a pseudorandom noise code until a next set of pre-integration results are received by the block integrator.

    摘要翻译: 一种用于处理以预定采样频率数字化的扩频信号的装置。 该装置包括中频信号预处理单元,多个并行块积分器。 中频信号预处理单元能够以预定速率产生基于输入信号和本地参考信号的预积分结果。 由中频信号预处理单元生成的预积分结果被分组成一组预积分结果。 每组预积分结果包含预定数量的预积分结果。 多个并行块积分器与中频信号预处理单元通信。 每个块积分器能够连续地接收预定数量的预积分结果的集合,并且对于每组预定数量的预积分结果,每个块积分器能够执行多个部分 基于预定数量的预积分结果的集合和伪随机噪声码的多个移位段直到下一组预积分结果被块积分器接收的相关性。

    Use of polymer spacers for the fabrication of shallow trench isolation
regions with rounded top corners
    9.
    发明授权
    Use of polymer spacers for the fabrication of shallow trench isolation regions with rounded top corners 失效
    使用聚合物间隔件制造具有圆角顶角的浅沟槽隔离区域

    公开(公告)号:US5801083A

    公开(公告)日:1998-09-01

    申请号:US954046

    申请日:1997-10-20

    IPC分类号: H01L21/762 H01L21/76

    摘要: A method for forming insulator filled, shallow trench isolation regions, with rounded corners, has been developed. The process features the use of a polymer coated opening, in an insulator layer, used as a mask to define the shallow trench region in silicon. After completion of the shallow trench formation the polymer spacers are removed, exposing a region of unetched semiconductor, that had been protected by the polymer spacers, during the shallow trench dry etching procedure. The sharp corner, at the intersection between the shallow trench and the unetched region of semiconductor, is then converted to a rounded corner, via thermal oxidation of exposed silicon surfaces. The polymer spacers also eliminate the top corner wraparound.

    摘要翻译: 已经开发了用于形成具有圆角的绝缘体填充的浅沟槽隔离区域的方法。 该方法的特征在于在绝缘体层中使用聚合物涂布的开口,用作掩模以限定硅中的浅沟槽区域。 在浅沟槽形成完成之后,去除聚合物间隔物,暴露在浅沟槽干法蚀刻过程中被聚合物间隔物保护的未蚀刻半导体区域。 然后,通过暴露的硅表面的热氧化,在浅沟槽和半导体的未蚀刻区域之间的交叉点处的尖角被转换成圆角。 聚合物间隔物也消除了顶角环绕​​。