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    • 11. 发明授权
    • Systems and methods for implementing intelligent wideband digital frequency selection scanning
    • 实现智能宽带数字频率选择扫描的系统和方法
    • US08805420B2
    • 2014-08-12
    • US13532622
    • 2012-06-25
    • Thomas KenneyEldad Perahia
    • Thomas KenneyEldad Perahia
    • H04W24/00
    • H04W48/16H04W48/04
    • A system and method are provided to intelligently undertake mandated scanning for radar signals prior to operating a particular wireless device in the 5 GHz band. The disclosed systems and methods provide a capability by which wireless devices are enabled to intelligently scan using a 160 MHz signal, or the largest bandwidth that the wireless device has the capacity to occupy. The disclosed scheme makes use of information about the location of the wireless device to determine characteristic of the environment in which the wireless device is operating. Locations of potentially conflicting radar installations, such as at airports and on military installations, are generally “known.” This information is used to compare to a determined geographic location of the wireless device to assess whether full broad bandwidth DFS scanning cane be reasonably undertaken or whether some narrower channel scanning is appropriate for the wireless device based on proximity to radar installations.
    • 提供了一种系统和方法,用于在操作5 GHz频带内的特定无线设备之前智能地执行雷达信号的强制扫描。 所公开的系统和方法提供使无线设备能够使用160MHz信号或无线设备具有占用能力的最大带宽进行智能扫描的能力。 所公开的方案利用关于无线设备的位置的信息来确定无线设备正在运行的环境的特性。 可能存在冲突的雷达装置的位置,例如机场和军事装置,通常是“已知的”。该信息用于与无线设备的确定的地理位置进行比较,以评估是否合理进行全宽带宽DFS扫描甘蔗 基于与雷达安装的接近度,是否需要较窄的信道扫描适用于无线设备。
    • 12. 发明申请
    • CHANNEL ESTIMATION AND TRACKING
    • 频道估计和跟踪
    • US20130223359A1
    • 2013-08-29
    • US13628613
    • 2012-09-27
    • Thomas KenneyEldad Perahia
    • Thomas KenneyEldad Perahia
    • H04W72/04
    • H04L5/005H04L25/0224H04L25/03019H04W84/12
    • A platform to facilitate updating an equalizer in addition to other receiver functionality is disclosed. A transmitting entity transmits one or more pilot tones in each protocol data unit (PDU) such as a packet. A receiving entity is able to derive a sufficiently accurate channel response estimate with the pilot tones under most channel conditions. The method and apparatus rotates the pilot tones through each of the subcarriers over the packet. The pilot tones would be separated by some number of data subcarriers so that estimation of slope and intercept for subcarrier tracking could be maintained. As the pilot tones are swept across the subcarriers, the taps for the equalizer for the subcarriers for which the pilot tones currently populate would be updated as well. This approach allows the system to track channel changes over time.
    • 公开了除了其它接收机功能之外还有助于更新均衡器的平台。 发送实体在诸如分组的每个协议数据单元(PDU)中发送一个或多个导频音调。 接收实体能够在大多数信道条件下使用导频音导出足够准确的信道响应估计。 该方法和装置通过分组上的每个子载波来旋转导频音。 导频音将被一些数量的子载波分开,从而可以维持用于子载波跟踪的斜率和截距的估计。 当导频音被跨越子载波扫描时,用于当前填充导频音的子载波的均衡器的抽头也将被更新。 这种方法允许系统跟踪频道随时间的变化。
    • 15. 发明授权
    • Discontinuous transmission (DTX) detection using decoder metric
    • 使用解码器度量的不连续传输(DTX)检测
    • US06904557B2
    • 2005-06-07
    • US10355324
    • 2003-01-31
    • Jukka TapaninenThomas KenneyJean-Marie Tran
    • Jukka TapaninenThomas KenneyJean-Marie Tran
    • H04L1/00H03M13/00
    • H04L1/0059H03M13/3738H03M13/41H04L1/0046H04L1/0054H04L1/0061H04L1/0072
    • A method detects an absence of a transmitted frame in a wireless communications system that operates with a discontinuous transmission (DTX) protocol between a transmitter and a receiver. The method includes decoding a received signal over a frame period to determine a cumulative metric; normalizing the cumulative metric and comparing the normalized cumulative metric to a threshold for determining whether the frame was a transmitted frame or a non-transmitted frame. The determined cumulative metric may be a maximum cumulative metric or a zero state cumulative metric. The wireless communications system may be a CDMA system, the receiver may be contained within a mobile station, and the determination of whether the frame was a transmitted frame or a non-transmitted frame can be employed, as one non-limiting example, during execution of a power control algorithm.
    • 一种方法检测在发射机和接收机之间以不连续传输(DTX)协议操作的无线通信系统中没有发送的帧。 该方法包括在帧周期上对接收到的信号进行解码以确定累积度量; 对累积度量进行归一化并将归一化累积度量与用于确定帧是发送帧还是非发送帧的阈值进行比较。 所确定的累积度量可以是最大累积度量或零状态累积度量。 无线通信系统可以是CDMA系统,接收机可以被包含在移动台内,并且在执行期间可以采用帧是发送帧还是非发送帧的确定作为一个非限制性示例 的功率控制算法。
    • 16. 发明授权
    • Method and apparatus for performing an interfrequency search
    • 用于执行接口搜索的方法和装置
    • US06865173B1
    • 2005-03-08
    • US09346784
    • 1999-07-07
    • Stanislaw CzajaWilliam JonesThomas KenneyKraig Anderson
    • Stanislaw CzajaWilliam JonesThomas KenneyKraig Anderson
    • H04B7/26H04W36/08H04W56/00H04B7/216
    • H04W36/0094H04B7/2628H04W56/00
    • The present invention a system and method are provided for performing an inter-frequency search with reduced loss of link frames in a CDMA system. The CDMA system includes a base station (20) and a mobile station (50). The mobile station (50) has a searcher (164), which searches for pilot channels. The signal strengths of these pilot channels are then reported to the base station (20). This searching results in erased portions of a data frame (238). After the signal strengths are reported to the base station (20), the mobile station (50) informs the base station (20) of the parameters related to the search. These parameters may include the frame of the search, the start position of the search, and the length of the search. The mobile station (50) and the base station (20) then replaces the erased portions of the frame with corrective data such as soft zeros.
    • 本发明提供了一种系统和方法,用于在CDMA系统中执行链路帧丢失减少的频率间搜索。 CDMA系统包括基站(20)和移动站(50)。 移动站(50)具有搜索导频信道的搜索器(164)。 然后将这些导频信道的信号强度报告给基站(20)。 该搜索导致擦除了数据帧(238)的部分。 在将信号强度报告给基站(20)之后,移动站(50)通知基站(20)与搜索有关的参数。 这些参数可以包括搜索的帧,搜索的开始位置和搜索的长度。 然后,移动站(50)和基站(20)用例如软零的校正数据替换帧的已擦除部分。
    • 17. 发明授权
    • Brushless DC wet motor fuel pump with integral controller
    • 无刷直流湿式电机燃油泵带集成控制器
    • US06652249B2
    • 2003-11-25
    • US09780941
    • 2001-02-09
    • Thomas KenneyKirk Westphal
    • Thomas KenneyKirk Westphal
    • F04B1700
    • F04C11/008F02M37/08F02M2037/085F04C15/008H02K1/187H02K5/12H02K7/14H02K11/33H02K29/08
    • An integrated brushless DC wet motor pump unit comprises a pump, a motor and a motor controller all contained within a housing. The motor includes a stator having stator coils fixed in relation to the housing and a motor rotor surrounding the stator coils and supported for rotation in the housing. A drive coupling drivingly couples the motor rotor to a rotating pump element, and the drive coupling, rotating pump element and motor stator are radially supported on a central support member. The various motor and pump components are assembled into the housing from one axial end of the housing, with the motor rotor, drive coupling and rotating pump element having axially telescoping anti-rotation elements connecting the same for common rotation. The motor rotor includes a radially outer back-iron and a rotor magnet that is insert molded into the rotor back-iron that is rotatably supported at its outer diameter by a journal surface on an inner diameter surface of the housing. A sensor printed circuit board includes at least one sensor for sensing passage of the magnetic poles of the motor rotor for electronic commutation and motor speed control. Materials, fabrication, further components and assembly of the various pump unit components are described.
    • 集成的无刷直流湿式电机泵单元包括一个包含在壳体内的泵,马达和马达控制器。 电动机包括具有相对于壳体固定的定子线圈的定子和围绕定子线圈并被支撑以在壳体中旋转的电动机转子。 驱动联接器将马达转子驱动耦合到旋转泵元件,并且驱动联轴器,旋转泵元件和马达定子径向地支撑在中心支撑构件上。 各种电动机和泵组件从壳体的一个轴向端部组装到壳体中,电动机转子,驱动联轴器和旋转泵元件具有连接其用于共同旋转的轴向伸缩的防旋转元件。 电动机转子包括径向外部后铁和转子磁体,该转子磁体嵌入模制到转子后铁中,该转子后铁通过壳体的内径表面上的轴颈表面在其外径处可旋转地支撑。 传感器印刷电路板包括至少一个传感器,用于感测用于电子换向和电动机速度控制的电动机转子的磁极的通过。 描述了各种泵单元部件的材料,制造,其它部件和组装。
    • 18. 发明授权
    • Method and apparatus for fast acquisition and multipath search in a
spread spectrum system
    • 在扩频系统中快速采集和多路径搜索的方法和装置
    • US6055264A
    • 2000-04-25
    • US904897
    • 1997-08-01
    • Thomas KenneyAfsar Chowdhury
    • Thomas KenneyAfsar Chowdhury
    • H04B15/00
    • H04B1/70775
    • Early and on-time signals are generated from a received CDMA signal for each PN code phase being searched, and the early and on-time signals are each divided into a number of subdwells sequentially in time. A correlation is then performed for each PN code phase search, on subdwells of the early and on-time signals for that PN code phase in a staggered manner in time, by alternating the correlation between the early and on-time signals during each sequential subdwell correlation. A detection statistic for the PN code phase is then generated from the correlation result. In an embodiment of the invention, two PN code phases are searched simultaneously by staggering the subdwell correlations in an alternate fashion between the early and on-time signals, so that each PN code phase uses a different set of subdwell correlations. In an alternative embodiment, a single PN code phase is searched by alternating the correlation between the early and on-time signals during each sequential subdwell correlation.
    • 对于正在搜索的每个PN码相位,从接收到的CDMA信号生成早期和准时信号,并且将早期和接通时间信号分别按时间顺序地分成多个子存储器。 然后,通过交替在每个连续的小区中的早期和接通时间信号之间的相关性,在每个PN码相位搜索中对于PN码相位的早期和接通时间信号的子通道以交错方式进行相关性 相关性。 然后根据相关结果生成PN码相位的检测统计量。 在本发明的一个实施例中,通过以早期和接通时间信号之间的交替方式交错子空间相关性来同时搜索两个PN码相位,使得每个PN码相位使用不同的子区间相关集合。 在替代实施例中,通过在每个顺序的子区间相关期间交替早期和接通时间信号之间的相关来搜索单个PN码相位。