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    • 5. 发明授权
    • 2-way speaker with coaxial effect
    • 双向扬声器同轴效应
    • US09578403B2
    • 2017-02-21
    • US14913342
    • 2014-08-20
    • Chang-Soo Lim
    • Chang-Soo Lim
    • H04R1/28H04R1/02H04R1/24H04R1/26
    • H04R1/023H04R1/06H04R1/24H04R1/26H04R1/2896
    • A speaker design technology acquires a coaxial effect of an output sound by placing a high-frequency speaker for outputting a high-pitched sound apart from a low-frequency speaker for outputting a low-pitched sound by a predetermined distance and mechanically arranging output points of the high-frequency speaker and the low-frequency speaker in alignment with each other. The speaker design technology lets vibration of a low-frequency speaker to avoid interference by the high-frequency speaker and also lets the high-frequency speaker to avoid interference by the vibration of the low-frequency speaker by arranging the high-frequency speaker in front of a dust cap necessarily installed in the center of the low-frequency speaker. Since the high-frequency speaker and the low-frequency speaker are spaced apart from each other so as to independently operate, any interface is not required for enabling the high-frequency and the low-frequency speakers to interwork with each other.
    • 扬声器设计技术通过放置用于输出高频扬声器的高频扬声器来获得输出声音的同轴效应,所述高频扬声器用于从低频扬声器输出低音扬声器预定距离,并机械地布置输出点 高频扬声器和低频扬声器彼此对准。 扬声器设计技术使低频扬声器的振动能够避免高频扬声器的干扰,并使高频扬声器能够通过将高频扬声器布置在前面来避免低频扬声器的振动的干扰 防尘帽必须安装在低频扬声器的中心。 由于高频扬声器和低频扬声器彼此间隔开以独立地操作,所以不需要任何界面来使高频扬声器和低频扬声器彼此相互配合。
    • 8. 发明申请
    • ELECTRONIC SHELF LABEL APPARATUS FOR SWITCHING IMAGES AND METHOD THEREOF
    • 用于切换图像的电子书签装置及其方法
    • US20120133623A1
    • 2012-05-31
    • US13042734
    • 2011-03-08
    • Gi Young BYUNUng Han MOONJung Hwan PARKYong Bok LEEChang Soo LIMChang Soo YANG
    • Gi Young BYUNUng Han MOONJung Hwan PARKYong Bok LEEChang Soo LIMChang Soo YANG
    • G09G5/00
    • G09G3/20G09G3/344G09G2354/00G09G2380/04
    • There is provided an electronic shelf label including an image display unit displaying a first image; a sensor unit detecting image switching signals; and a processor unit determining whether the image switching signals detected by the sensor unit are valid and switching the first image displayed on the image display unit to a second image when the image switching signals are valid, and a communication unit receiving a plurality of image data displayed on the image display unit. The processor unit determines that the image switching signals are valid when a detection duration time of the image switching signals is longer than a predetermined first threshold time. By this configuration, the electronic shelf label can switch a plurality of images and reduce the influence of disturbance to thereby prevent unnecessary image switching. Further, the electronic shelf label can provide product-related information for a manager or the like as well as for a purchaser.
    • 提供了一种包括显示第一图像的图像显示单元的电子货架标签; 检测图像切换信号的传感器单元; 以及处理器单元,其确定所述传感器单元检测到的图像切换信号是否有效,并且当所述图像切换信号有效时,将所述图像显示单元上显示的所述第一图像切换为第二图像;以及通信单元,接收多个图像数据 显示在图像显示单元上。 当图像切换信号的检测持续时间长于预定的第一阈值时间时,处理器单元确定图像切换信号有效。 通过这种配置,电子货架标签可以切换多个图像并减少干扰的影响,从而防止不必要的图像切换。 此外,电子货架标签可以为管理者等以及购买者提供与产品有关的信息。
    • 9. 发明授权
    • Method and apparatus for tracking location of user equipment by using integrated GPS and TDOA scheme
    • 通过使用集成GPS和TDOA方案跟踪用户设备位置的方法和装置
    • US07446701B2
    • 2008-11-04
    • US11270735
    • 2005-11-10
    • Byung-Jun ParkChang-Soo Lim
    • Byung-Jun ParkChang-Soo Lim
    • G01S5/00G01S1/00
    • G01S19/48
    • A method and an apparatus for tracking a location of a UE by using an integrated GPS and TDOA scheme in a mobile communication network are provided. A GPS position solution of the UE is obtained using GPS code information. TDOA position solutions are obtained using pilot signal transmission times of BSs and pilot signal reception times of the UE, and an average value of the TDOA position solutions is calculated. The GPS position solution is subtracted from the average to obtain a position error value, and an iterative method using a least square method is performed for the position error value to correct the position error. The corrected position error value is added to the average value of the TDOA position solutions to obtain a more precise position solution.
    • 提供了一种通过在移动通信网络中使用集成GPS和TDOA方案来跟踪UE的位置的方法和装置。 使用GPS码信息获取UE的GPS位置解。 使用BS的导频信号发送时间和UE的导频信号接收时间获得TDOA位置解,并计算TDOA位置解的平均值。 从平均值中减去GPS位置解,以获得位置误差值,并对位置误差值执行使用最小二乘法的迭代方法来校正位置误差。 将校正的位置误差值加到TDOA位置解的平均值,以获得更精确的位置解。
    • 10. 发明申请
    • Method and apparatus for tracking location of user equipment by using integrated GPS and TDOA scheme
    • 通过使用集成GPS和TDOA方案跟踪用户设备位置的方法和装置
    • US20060232466A1
    • 2006-10-19
    • US11270735
    • 2005-11-10
    • Byung-Jun ParkChang-Soo Lim
    • Byung-Jun ParkChang-Soo Lim
    • G01S1/00
    • G01S19/48
    • A method and an apparatus for tracking a location of a UE by using an integrated GPS and TDOA scheme in a mobile communication network are provided. A GPS position solution of the UE is obtained using GPS code information. TDOA position solutions are obtained using pilot signal transmission times of BSs and pilot signal reception times of the UE, and an average value of the TDOA position solutions is calculated. The GPS position solution is subtracted from the average to obtain a position error value, and an iterative method using a least square method is performed for the position error value to correct the position error. The corrected position error value is added to the average value of the TDOA position solutions to obtain a more precise position solution.
    • 提供了一种通过在移动通信网络中使用集成GPS和TDOA方案来跟踪UE的位置的方法和装置。 使用GPS码信息获取UE的GPS位置解。 使用BS的导频信号发送时间和UE的导频信号接收时间获得TDOA位置解,并计算TDOA位置解的平均值。 从平均值中减去GPS位置解,以获得位置误差值,并对位置误差值执行使用最小二乘法的迭代方法来校正位置误差。 将校正的位置误差值加到TDOA位置解的平均值,以获得更精确的位置解。