Electrically connected multi-feed antenna system
    181.
    发明授权
    Electrically connected multi-feed antenna system 有权
    电连接多馈天线系统

    公开(公告)号:US06781548B2

    公开(公告)日:2004-08-24

    申请号:US10014940

    申请日:2001-10-26

    IPC分类号: H01Q124

    CPC分类号: H01Q1/38 H01Q1/243

    摘要: An antenna system for a portable transceiver device comprises an antenna structure for transmitting and receiving RF signals. The antenna structure includes multiple feeding ports having a common structure fully coupling multiple antennas together. This antenna structure is made of a conductor that can be surface mounted over a nonplanar surface. When the conductor is mounted on a nonplanar surface, the antenna structure extends in three dimensional space around the portable communications device.

    摘要翻译: 用于便携式收发器设备的天线系统包括用于发送和接收RF信号的天线结构。 天线结构包括具有将多个天线完全耦合在一起的共同结构的多个馈送端口。 该天线结构由可以表面安装在非平面表面上的导体制成。 当导体安装在非平面表面上时,天线结构在便携式通信设备周围的三维空间中延伸。

    Carrier sensing and symbol timing in a WLAN system
    182.
    发明授权
    Carrier sensing and symbol timing in a WLAN system 有权
    WLAN系统中的载波侦听和符号定时

    公开(公告)号:US09398615B1

    公开(公告)日:2016-07-19

    申请号:US13591737

    申请日:2012-08-22

    IPC分类号: H04W74/08

    摘要: A method for processing a preamble of a data unit received via a communication channel, wherein the preamble includes a first preamble field having a plurality of repetitions of a sequence, includes generating a cross-correlation output signal at least in part by correlating (i) a signal corresponding to the first preamble field of a received data unit with (ii) one or more repetitions of the sequence. The method also includes generating a correlation output signal at least in part by performing a correlation operation on the cross-correlation output signal, and, based at least in part on the correlation output signal, detecting the received data unit and/or determining timing associated with the received data unit.

    摘要翻译: 一种用于处理经由通信信道接收的数据单元的前导码的方法,其中所述前同步码包括具有多个重复序列的第一前同步码字段,包括至少部分地通过将(i) 与(ii)序列的一个或多个重复相对应的接收数据单元的第一前导字段的信号。 该方法还包括至少部分地通过对互相关输出信号执行相关运算来产生相关输出信号,并且至少部分地基于相关输出信号,检测接收的数据单元和/或确定相关的定时 与接收的数据单元。

    Discriminator system for timing error detection in presence and absence of multipath conditions
    183.
    发明授权
    Discriminator system for timing error detection in presence and absence of multipath conditions 有权
    用于存在和不存在多径条件的定时误差检测的鉴别器系统

    公开(公告)号:US08908744B1

    公开(公告)日:2014-12-09

    申请号:US13010162

    申请日:2011-01-20

    申请人: Yihong Qi

    发明人: Yihong Qi

    IPC分类号: H04B1/00

    CPC分类号: H04B17/345 H04B1/109

    摘要: In a code tracking loop, a multipath discriminator is configured to generate a first tracking error corresponding to a received signal in the presence of multipath interference and/or at low signal level. A line-of-sight (LOS) discriminator is configured to generate a second tracking error corresponding to the received signal. A multipath switch is configured to i) detect the presence of multipath interference in the received signal and/or a low signal level of the received signal compared to a threshold, and ii) indicate whether the first tracking error or the second tracking error is to be utilized.

    摘要翻译: 在代码跟踪循环中,多路径鉴别器被配置为在存在多路径干扰和/或处于低信号电平的情况下产生对应于接收信号的第一跟踪误差。 视线(LOS)鉴别器被配置为产生对应于接收信号的第二跟踪误差。 多路径切换器被配置为i)与阈值相比较,在接收信号中检测多径干扰的存在和/或接收信号的低信号电平,以及ii)指示第一跟踪误差或第二跟踪误差是否为 被利用。

    System and methods for determining radiated radio frequency (RF) receiver sensitivity
    184.
    发明授权
    System and methods for determining radiated radio frequency (RF) receiver sensitivity 有权
    用于确定辐射射频(RF)接收机灵敏度的系统和方法

    公开(公告)号:US08548389B2

    公开(公告)日:2013-10-01

    申请号:US13611770

    申请日:2012-09-12

    IPC分类号: H04B17/00

    CPC分类号: H04B17/29 H04B17/20

    摘要: A test method is for determining RF sensitivity of an RF receiver for a plurality of channels extending over a frequency band(s) using an RF source coupled to the RF receiver by an RF communications link. The plurality of channels may include channels having a predictable RF sensitivity and a channel(s) having a non-predictable RF sensitivity. The test method may include measuring an RF sensitivity for one or more of the channels having the predictable RF sensitivity, and generating a partial RF sensitivity function for the channels having the predictable RF sensitivity based thereon. The method may further include measuring an RF sensitivity for the channel(s) having the non-predictable RF sensitivity. Additionally, an overall RF sensitivity function may be generated for the plurality of channels based upon the partial RF sensitivity function, and based upon the measured RF sensitivity for the channel(s) having the non-predictable RF sensitivity.

    摘要翻译: 测试方法用于通过RF通信链路使用通过RF接收器耦合的RF源来确定在频带上延伸的多个信道的RF接收机的RF灵敏度。 多个信道可以包括具有可预测RF灵敏度的信道和具有不可预测的RF灵敏度的信道。 测试方法可以包括测量具有可预测RF灵敏度的一个或多个信道的RF灵敏度,以及基于此产生具有可预测RF灵敏度的信道的部分RF灵敏度功能。 该方法还可以包括测量具有不可预测RF灵敏度的信道的RF灵敏度。 另外,可以基于部分RF灵敏度功能并且基于具有不可预测的RF灵敏度的信道的测量的RF灵敏度来为多个信道生成整体RF灵敏度功能。

    Antenna with near-field radiation control

    公开(公告)号:US08339323B2

    公开(公告)日:2012-12-25

    申请号:US13529531

    申请日:2012-06-21

    IPC分类号: H01Q1/12

    摘要: An antenna and a wireless mobile communication device incorporating the antenna are provided. The antenna includes a first conductor section electrically coupled to a first feeding point, a second conductor section electrically coupled to a second feeding point, and a near-field radiation control structure adapted to control characteristics of near-field radiation generated by the antenna. Near-field radiation control structures include a parasitic element positioned adjacent the first conductor section and configured to control characteristics of near-field radiation generated by the first conductor section, and a diffuser in the second conductor section configured to diffuse near-field radiation generated by the second conductor section into a plurality of directions.

    System and methods for determining radiated radio frequency (RF) receiver sensitivity

    公开(公告)号:US08170489B2

    公开(公告)日:2012-05-01

    申请号:US12132659

    申请日:2008-06-04

    IPC分类号: H04B17/00

    CPC分类号: H04B17/29 H04B17/20

    摘要: A test method is for determining RF sensitivity of an RF receiver for a plurality of channels extending over a frequency band(s) using an RF source coupled to the RF receiver by an RF communications link. The plurality of channels may include channels having a predictable RF sensitivity and a channel(s) having a non-predictable RF sensitivity. The test method may include measuring an RF sensitivity for one or more of the channels having the predictable RF sensitivity, and generating a partial RF sensitivity function for the channels having the predictable RF sensitivity based thereon. The method may further include measuring an RF sensitivity for the channel(s) having the non-predictable RF sensitivity. Additionally, an overall RF sensitivity function may be generated for the plurality of channels based upon the partial RF sensitivity function, and based upon the measured RF sensitivity for the channel(s) having the non-predictable RF sensitivity.

    Interactive wireless communication device
    188.
    发明授权
    Interactive wireless communication device 有权
    交互式无线通信设备

    公开(公告)号:US08036259B2

    公开(公告)日:2011-10-11

    申请号:US12084903

    申请日:2006-11-13

    IPC分类号: H04B1/40

    摘要: A first communication apparatus sequentially generates a pulse sequence having pulse signals arranged based on the UWB communication system, performs a framing process to form a frame having at least a preamble and a data portion on the generated pulse sequence and inserts a preamble segment including a sequence of steady pulse signals in the data portion at a predetermined time interval, and transmits it as a radio wave. A second communication apparatus receives a pulse sequence as a radio wave transmitted from the first communication apparatus, and detects at least the preamble segment from the frame contained in the received pulse sequence through a detection window structured to have a predetermined time length, whereby a transmission timing for the pulse sequence to the first communication apparatus 2 controlled according to a state of detection of the preamble segment.

    摘要翻译: 第一通信装置顺序地产生具有基于UWB通信系统布置的脉冲信号的脉冲序列,执行成帧处理以形成至少在生成的脉冲序列上的前同步码和数据部分的帧,并且插入包括序列 在预定的时间间隔在数据部分中的稳定脉冲信号,并作为无线电波发送。 第二通信装置接收作为从第一通信装置发送的无线电波的脉冲序列,并且通过构成为具有预定时间长度的检测窗口,从包含在接收到的脉冲序列中的帧中至少检测前导码段,由此, 根据前导码片段的检测状态来控制到第一通信装置2的脉冲序列的定时。

    Antenna With Near-Field Radiation Control
    190.
    发明申请
    Antenna With Near-Field Radiation Control 有权
    天线近场辐射控制

    公开(公告)号:US20090231228A1

    公开(公告)日:2009-09-17

    申请号:US12474075

    申请日:2009-05-28

    IPC分类号: H01Q9/26 H01Q19/02 H01Q19/10

    摘要: An antenna and a wireless mobile communication device incorporating the antenna are provided. The antenna includes a first conductor section electrically coupled to a first feeding point, a second conductor section electrically coupled to a second feeding point, and a near-field radiation control structure adapted to control characteristics of near-field radiation generated by the antenna. Near-field radiation control structures include a parasitic element positioned adjacent the first conductor section and configured to control characteristics of near-field radiation generated by the first conductor section, and a diffuser in the second conductor section configured to diffuse near-field radiation generated by the second conductor section into a plurality of directions.

    摘要翻译: 提供了包括天线的天线和无线移动通信设备。 天线包括电耦合到第一馈电点的第一导体部分,电耦合到第二馈电点的第二导体部分和适于控制由天线产生的近场辐射的特性的近场辐射控制结构。 近场辐射控制结构包括邻近第一导体部分定位并被配置为控制由第一导体部分产生的近场辐射的特性的寄生元件,以及第二导体部分中的扩散器,其被配置为扩散由第一导体部分产生的近场辐射 所述第二导体部分分成多个方向。