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    • 81. 发明申请
    • METHOD AND DEVICE FOR SELECTING THE ANTENNAS AT THE BASE STATION
    • 在基站选择天线的方法和装置
    • US20120275531A1
    • 2012-11-01
    • US13520743
    • 2010-12-31
    • Keying WuDong Li
    • Keying WuDong Li
    • H04B7/06
    • H04B7/0691H04B7/0413H04B7/0689H04B7/10
    • In order to solve the technical problem in the prior art that different spatial correlation modes are applicable for the transmission antennas in the base station under different working modes is not considered, the present invention provides a method and device for selecting the antenna at the base station. Wherein, the spatial correlation mode information among the multiple transmission antenna elements is determined by the base station according to the working mode; then, multiple transmission antenna elements are selected from several antenna elements to transmit the signal, according to the spatial correlation mode information. With the solution in the present invention, the base station may flexibly choose channel characteristic of strong spatial correlation and/or high DoF. When the base station is working under a closed-loop mode, transmission antennas may be selected to satisfy the strong spatial correlation, thereby the feedback over-head is reduced, and the robustness against the feedback delay is increased, and the quantization error is reduced. When the base station is working under an open-loop mode, transmission antennas may be selected to satisfy the weak spatial correlation, thereby the spatial DoF is increased, and the diversity and/or multi-plexing gain is introduced.
    • 为了解决现有技术中的技术问题,不考虑在不同工作模式下不同的空间相关模式适用于基站中的发射天线,本发明提供了一种在基站上选择天线的方法和装置 。 其中,所述多个发送天线元件之间的空间相关模式信息由所述基站根据所述工作模式确定; 然后,根据空间相关模式信息从多个天线元件中选择多个发射天线元件以发射信号。 通过本发明的解决方案,基站可以灵活地选择具有强空间相关性和/或高DoF的信道特征。 当基站在闭环模式下工作时,可以选择发送天线以满足强空间相关性,从而降低反馈超头,并且反馈延迟的鲁棒性增加,量化误差减小 。 当基站在开环模式下工作时,可以选择发送天线以满足弱空间相关性,从而增加空间DoF,并且引入分集和/或多路复用增益。
    • 82. 发明申请
    • METHOD AND APPARATUS FOR CAPTURING HIGH DYNAMIC RANGE IMAGES USING MULTI-FRAME INTERLACED EXPOSURE IMAGES
    • 使用多帧交错曝光图像捕获高动态范围图像的方法和装置
    • US20120274822A1
    • 2012-11-01
    • US13170478
    • 2011-06-28
    • Scott SmithDong LiPeng Lin
    • Scott SmithDong LiPeng Lin
    • H04N5/335
    • H04N5/23254H04N5/2353H04N5/2355H04N5/3535H04N5/35554
    • An imager includes an array of pixels arranged in rows and a control circuit for sequentially capturing first and second image frames from the array of pixels. The control circuit is configured to sequentially capture first and second pairs of adjacent rows of pixels during first and second exposure times, respectively, when capturing the first image frame. The control circuit is also configured to sequentially capture first and second pairs of adjacent rows of pixels during second and first exposure times, respectively, when capturing the second image frame. The first exposure times during the first and second frames are of similar duration; and the second exposure times during the first and second frames are of similar duration. The control circuit is configured to detect motion of an object upon combining the first and second image frames and, then, correct for the motion of the object.
    • 成像器包括排列成行的像素阵列和用于从像素阵列顺序捕获第一和第二图像帧的控制电路。 控制电路被配置为在捕获第一图像帧时分别在第一和第二曝光时间期间顺序捕获第一和第二对相邻像素行对。 控制电路还被配置为在捕获第二图像帧时分别在第二和第一曝光时间期间顺序捕获第一和第二对相邻像素行。 在第一和第二帧期间的第一曝光时间具有相似的持续时间; 并且第一和第二帧期间的第二曝光时间具有相似的持续时间。 控制电路被配置为在组合第一和第二图像帧时检测对象的运动,然后校正对象的运动。
    • 85. 发明申请
    • PRE-CODING METHOD AND APPARATUS
    • 预编码方法和装置
    • US20120170675A1
    • 2012-07-05
    • US13391014
    • 2009-08-18
    • Dong LiCai Liyu
    • Dong LiCai Liyu
    • H04B7/02
    • H04B7/022H04B7/0452H04B7/0478
    • The present invention provides a pre-coding method in a multi-user macro-diversity transmission system. The method comprises: obtaining, for a mobile station in the multi-user macro-diversity transmission system, a first sub-precoder that guarantees orthogonality between equivalent channels of users; obtaining a second sub-precoder by performing QR decomposition based on equivalent channels precoded through the first sub-precoder; obtaining a final pre-coder with respect to the mobile station by combining the first sub-precoder and the second sub-precoder; and performing pre-coding on data of the mobile station with the final precoder The present invention further provides a corresponding base station and a multi-user macro-diversity transmission system. Through the technical solution of the present invention, the multi-user macro-diversity transmission system may achieve more macro-diversity gain, thereby greatly enhancing the performance of the multi-user macro-diversity transmission.
    • 本发明提供了一种多用户宏分集传输系统中的预编码方法。 该方法包括:为多用户宏分集传输系统中的移动台获得保证用户等效信道之间的正交性的第一子预编码器; 通过基于通过第一子预编码器预编码的等效信道执行QR分解来获得第二子预编码器; 通过组合第一子预编码器和第二子预编码器获得关于移动台的最终预编码器; 并利用最终预编码器对移动台的数据执行预编码本发明还提供了一种相应的基站和多用户宏分集传输系统。 通过本发明的技术方案,多用户宏分集传输系统可以实现更多的宏分集增益,从而大大提高了多用户宏分集传输的性能。
    • 88. 发明申请
    • LOW POWER POWER-ON-RESET (POR) CIRCUIT
    • 低功率上电复位(POR)电路
    • US20120092046A1
    • 2012-04-19
    • US12904702
    • 2010-10-14
    • Dong LiHai Tao
    • Dong LiHai Tao
    • H03L7/00
    • H03K17/223
    • In one general aspect, an apparatus can include a first voltage detect circuit configured to produce an output signal at a first power supply voltage, and configured to be in a non-monitoring state at a second power supply voltage greater than the first power supply voltage. The apparatus can include a second voltage detect circuit configured to change from a non-monitoring state to a monitoring state and configured to produce an output signal at a third power supply voltage between the first power supply voltage and the second power supply voltage. The apparatus can also include a combination circuit configured to produce a power-on-reset signal based on a logical combination of the output signal produced by the first voltage detect circuit and the output signal produced by the second voltage detect circuit.
    • 在一个一般方面,装置可以包括第一电压检测电路,其被配置为在第一电源电压下产生输出信号,并且被配置为处于非第一电源电压的第二电源电压处于非监视状态 。 该装置可以包括第二电压检测电路,其被配置为从非监视状态改变到监视状态,并且被配置为在第一电源电压和第二电源电压之间以第三电源电压产生输出信号。 该装置还可以包括组合电路,其被配置为基于由第一电压检测电路产生的输出信号和由第二电压检测电路产生的输出信号的逻辑组合产生上电复位信号。