Method and apparatus for frequency tracking in a space time transmit diversity receiver
    212.
    发明授权
    Method and apparatus for frequency tracking in a space time transmit diversity receiver 失效
    用于时空发射分集接收机的频率跟踪的方法和装置

    公开(公告)号:US07676008B2

    公开(公告)日:2010-03-09

    申请号:US11776884

    申请日:2007-07-12

    CPC classification number: H04L1/0618

    Abstract: A system and method for obtaining a frequency error estimate representing the difference between a reference frequency and the frequency of a space-time transmit diversity signal is disclosed herein. The method includes taking the correlation of total sums, comprised of partial sums taken in defined first and second intervals, to represent the frequency error as the imaginary component of the correlation function.

    Abstract translation: 本文公开了一种用于获得表示基准频率与时空发射分集信号的频率之间的差的频率误差估计的系统和方法。 该方法包括采用由定义的第一和第二间隔中采取的部分和组成的总和的相关,以表示作为相关函数的虚分量的频率误差。

    Multifunctional Keyboard For A Mobile Communication Device And Method Of Operating The Same
    213.
    发明申请
    Multifunctional Keyboard For A Mobile Communication Device And Method Of Operating The Same 有权
    用于移动通信设备的多功能键盘及其操作方法

    公开(公告)号:US20100048261A1

    公开(公告)日:2010-02-25

    申请号:US12607468

    申请日:2009-10-28

    Abstract: An apparatus and method for telephony tone signal and character code generation for QWERTY keyboards includes a QWERTY style keyboard, a processor and a keyboard mode control software module. The QWERTY style keyboard has a plurality of letter keys, wherein each letter key is configured to generate a unique input signal. The processor is coupled to the keyboard and is configured to convert each unique input signal generated by the letter keys into a character code and/or a telephony tone signal. The keyboard mode control software module operates on the processor, and controls whether the processor converts the unique input signals from the letter keys into character codes or telephony tone signals.

    Abstract translation: 用于QWERTY键盘的电话音信号和字符代码生成的装置和方法包括QWERTY风格的键盘,处理器和键盘模式控制软件模块。 QWERTY风格键盘具有多个字母键,其中每个字母键被配置为产生唯一的输入信号。 处理器耦合到键盘并且被配置为将由字母键生成的每个唯一输入信号转换成字符代码和/或电话音调信号。 键盘模式控制软件模块在处理器上操作,并且控制处理器是否将来自字母键的唯一输入信号转换成字符代码或电话音信号。

    Method and apparatus for improving power amplifier efficiency in wireless communication systems having high peak to average power ratios
    216.
    发明授权
    Method and apparatus for improving power amplifier efficiency in wireless communication systems having high peak to average power ratios 有权
    具有高峰均功率比的无线通信系统中的功率放大器效率的提高方法和装置

    公开(公告)号:US07551689B2

    公开(公告)日:2009-06-23

    申请号:US12025247

    申请日:2008-02-04

    CPC classification number: H04W52/343

    Abstract: A power management system and method for a wireless communication device generates an average desired transmit power signal based on at least one of a received signal strength indicator signal and a power control instruction signal from a base station. A power supply level adjustment signal is generated based on the data parameters of an outgoing data stream and at least one environmental information signal. A combination of the power supply level adjustment signal and the average desired transmit power or a gain control signal and an altered version of the power supply level adjustment signal is used to generate a variable power supply signal that is provided to an output amplifier block for sufficiently generating outgoing wireless device radio signals while reducing power loss in the output amplifier block.

    Abstract translation: 用于无线通信设备的电源管理系统和方法基于来自基站的接收信号强度指示符信号和功率控制指令信号中的至少一个产生平均期望的发射功率信号。 基于输出数据流的数据参数和至少一个环境信息信号生成电源电平调整信号。 使用电源电平调整信号和平均期望发送功率或增益控制信号和电源电平调整信号的改变版本的组合来产生可变电源信号,该可变电源信号被提供给输出放大器块用于充分地 产生输出无线设备无线电信号,同时减少输出放大器块中的功率损耗。

    Method of using SNR to reduce factory test time
    217.
    发明授权
    Method of using SNR to reduce factory test time 有权
    使用SNR降低工厂测试时间的方法

    公开(公告)号:US07542764B2

    公开(公告)日:2009-06-02

    申请号:US11066240

    申请日:2005-02-25

    CPC classification number: H04B17/336 H04B17/21 H04B17/29 H04B17/318

    Abstract: The application relates to wireless networks and more particularly to a method of reducing factory test time of receiver sensitivity in a Code Division Multiple Access (CDMA) wireless device. Under TIA/EIA/-98E, the radio frequency (RF) sensitivity of a CDMA wireless receiver is the minimum received power, measured at the mobile station antenna connector, at which the frame error rate (FER) does not exceed 0.5% with 95% confidence. In order to reduce the test time of FER test method, the relation between correlated energy (or Ec/Io) and FER is determined using simulated traffic and the correlated energy (or Ec/Io) measurement is then used as the test parameter on like models to achieve the same or superior test confidence with significantly reduced test time.

    Abstract translation: 本申请涉及无线网络,更具体地说,涉及一种在码分多址(CDMA)无线设备中减少接收机灵敏度的工厂测试时间的方法。 在TIA / EIA / -98E下,CDMA无线接收机的射频(RF)灵敏度是在移动台天线连接器处测量的最小接收功率,帧误码率(FER)不超过0.5%,95 % 置信度。 为了减少FER测试方法的测试时间,使用模拟流量确定相关能量(或Ec / Io)与FER之间的关系,然后将相关能量(或Ec / Io)测量用作测试参数 模型实现相同或优异的测试信心,显着缩短了测试时间。

    Methods And Apparatus For Facilitating The Determination Of GPS Location Information For A Mobile Station Without Disrupting Communications Of A Voice Call
    218.
    发明申请
    Methods And Apparatus For Facilitating The Determination Of GPS Location Information For A Mobile Station Without Disrupting Communications Of A Voice Call 有权
    用于确定移动站GPS定位信息而不中断语音呼叫通信的方法和装置

    公开(公告)号:US20090124253A1

    公开(公告)日:2009-05-14

    申请号:US12331760

    申请日:2008-12-10

    CPC classification number: G01S19/09 G01S19/17 H04W76/50

    Abstract: Methods and apparatus for facilitating the determination of Global Positioning System (GPS) location information for a mobile station without disrupting communications of a voice call (e.g. a 911 emergency call). In one illustrative example, the mobile station causes GPS navigational-type data to be regularly or periodically received and stored in memory prior to the voice call. At some point in time, the mobile station receives a voice call request to initiate the voice call. In response, the mobile station derives GPS assistance data based on the GPS navigational-type data. The mobile station then causes a GPS fix to be performed using the GPS assistance data, to thereby obtain GPS measurement data. Thereafter, the mobile station causes the voice call to be established and maintained through the wireless network.

    Abstract translation: 便于确定移动台的全球定位系统(GPS)位置信息而不中断话音通信(例如911紧急呼叫)的方法和装置。 在一个说明性示例中,移动台使得GPS导航类型数据在语音呼叫之前被定期地或周期性地接收并存储在存储器中。 在某个时间点,移动台接收语音呼叫请求以发起语音呼叫。 作为响应,移动台基于GPS导航型数据导出GPS辅助数据。 移动台然后使用GPS辅助数据进行GPS定位,从而获得GPS测量数据。 此后,移动台通过无线网络建立和维护语音呼叫。

    METHOD OF USING SNR TO REDUCE FACTORY TEST TIME
    219.
    发明申请
    METHOD OF USING SNR TO REDUCE FACTORY TEST TIME 有权
    使用SNR降低工厂测试时间的方法

    公开(公告)号:US20090124252A1

    公开(公告)日:2009-05-14

    申请号:US12354248

    申请日:2009-01-15

    CPC classification number: H04B17/336 H04B17/21 H04B17/29 H04B17/318

    Abstract: The application relates to wireless networks and more particularly to a method of reducing factory test time of receiver sensitivity in a Code Division Multiple Access (CDMA) wireless device. Under TIA/EIA/-98E, the radio frequency (RF) sensitivity of a CDMA wireless receiver is the minimum received power, measured at the mobile station antenna connector, at which the frame error rate (FER) does not exceed 0.5% with 95% confidence. In order to reduce the test time of FER test method, the relation between correlated energy (or Ec/Io) and FER is determined using simulated traffic and the correlated energy (or Ec/Io) measurement is then used as the test parameter on like models to achieve the same or superior test confidence with significantly reduced test time.

    Abstract translation: 本申请涉及无线网络,更具体地说,涉及一种在码分多址(CDMA)无线设备中减少接收机灵敏度的工厂测试时间的方法。 在TIA / EIA / -98E下,CDMA无线接收机的射频(RF)灵敏度是在移动台天线连接器处测量的最小接收功率,帧误码率(FER)不超过0.5%,95 % 置信度。 为了减少FER测试方法的测试时间,使用模拟流量确定相关能量(或Ec / Io)与FER之间的关系,然后将相关能量(或Ec / Io)测量用作测试参数 模型实现相同或优异的测试信心,显着缩短了测试时间。

    Vinyl polymer photoconductive elements
    220.
    发明授权
    Vinyl polymer photoconductive elements 有权
    乙烯基聚合物光电导元件

    公开(公告)号:US07371492B2

    公开(公告)日:2008-05-13

    申请号:US11192347

    申请日:2005-07-28

    CPC classification number: G03G5/102 G03G5/142 G03G5/144

    Abstract: The present invention is a photoconductive element that includes an electrically conductive support, an electrical barrier layer disposed over said electrically conductive support, and disposed over said barrier layer, a charge generation layer capable of generating positive charge carriers when exposed to actinic radiation. The barrier layer includes a vinyl polymer with aromatic tetracarbonylbisimide side groups and crosslinking sites.

    Abstract translation: 本发明是一种感光元件,其包括导电支撑体,设置在所述导电支撑体上方的电阻挡层,并且设置在所述阻挡层上方,当暴露于光化辐射时能够产生正电荷载流子的电荷产生层。 阻隔层包括具有芳族四羰基双酰亚胺侧基的乙烯基聚合物和交联位点。

Patent Agency Ranking