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    • 2. 发明授权
    • Variable gain amplifier for high frequency band using microstrip hybrid
    • 使用微带混合的高频可变增益放大器
    • US06977554B2
    • 2005-12-20
    • US10679056
    • 2003-10-02
    • Jin Bong SungSung Weon KangYun Tae Kim
    • Jin Bong SungSung Weon KangYun Tae Kim
    • H03G3/00H03F3/60
    • H03F3/60
    • The present invention relates to a variable gain amplifier for a high frequency band, and comprises a divider for dividing a input signal; a fixed variable gain amplifier for amplifying an output signal of the divider; a microstrip ring hybrid for outputting a plurality of signals which have the same or different phases, wherein the microstrip ring hybrid comprises a plurality of input terminals and output terminals having a constant impedance; a switch for selectively inputting an output of the variable gain amplifier to any one of the input terminals of the microstrip ring hybrid; a transmission line for delaying the output signal of the divider; and a combiner for combining each of the output signals of the microstrip ring hybrid and a signal passing through the transmission line and outputting the combined signal, wherein the output power is controlled by selectively inputting the output of the variable gain amplifier to any one of the input terminals of the microstrip ring hybrid by means of the switches, so that its input-output matching may be obtained irrespective of its gain.
    • 本发明涉及一种用于高频带的可变增益放大器,并且包括用于分割输入信号的分频器; 一个用于放大分频器的输出信号的固定可变增益放大器; 用于输出具有相同或不同相位的多个信号的微带环混合,其中所述微带环混合包括具有恒定阻抗的多个输入端和输出端; 用于选择性地将可变增益放大器的输出输入到微带环混合器的任何一个输入端的开关; 用于延迟分配器的输出信号的传输线; 以及组合器,用于组合微带环混合的每个输出信号和通过传输线的信号,并输出组合信号,其中输出功率通过有选择地将可变增益放大器的输出输入到 微带环的输入端通过开关混合,使得其输入 - 输出匹配可以获得而不管其增益如何。
    • 3. 发明授权
    • Switched coupler type digital phase shifter using quadrature generator
    • 使用正交发生器的开关耦合器型数字移相器
    • US06985049B2
    • 2006-01-10
    • US10716571
    • 2003-11-18
    • Chang Hee HyoungSung Weon KangYun Tae Kim
    • Chang Hee HyoungSung Weon KangYun Tae Kim
    • H01P1/18
    • H03H11/22H01P1/185
    • A switched coupler type digital phase shifter using a quadrature generator is disclosed. A switched coupler type digital phase shifter includes: a coupling unit for receiving one input signal and generating a first signal and a second signal having 180 degree phase difference based on the received input signal; a quadrature signal generation unit for generating a third signal to a sixth signal having 90 degree phase difference to each other based on the first signal and the second signal outputted from the coupling unit; and a switching unit for selectively outputting one of the third signal to the sixth signal outputted from the quadrate signal generation unit in response to a control signal. The present invention can increased integration of the multi-bit digital phase shifter by implementing multi bit phase variant with only one phase shifter. Also, the insertion loss can be minimized.
    • 公开了一种使用正交发生器的开关耦合器型数字移相器。 开关耦合器型数字移相器包括:耦合单元,用于接收一个输入信号并产生第一信号和基于所接收的输入信号具有180度相位差的第二信号; 正交信号产生单元,用于根据从耦合单元输出的第一信号和第二信号,产生第三信号至具有彼此具有90度相位差的第六信号; 以及切换单元,用于响应于控制信号,选择性地将第三信号中的一个输出到从正方形信号产生单元输出的第六信号。 本发明可以通过仅使用一个移相器实现多位相位变型来增加多位数字移相器的集成。 此外,插入损耗可以最小化。
    • 6. 发明授权
    • Radio frequency device using micro-electronic-mechanical system technology
    • 射频设备采用微电子机械系统技术
    • US06750742B2
    • 2004-06-15
    • US10331592
    • 2002-12-30
    • Sung Weon KangSung Hae JungWoo Seok YangYun Tae Kim
    • Sung Weon KangSung Hae JungWoo Seok YangYun Tae Kim
    • H01P110
    • H01P1/127
    • Provided is a radio frequency device using a micro-electronic-mechanical system (MEMS) technology that can be applied to a mobile communication area by reducing the operating voltage, while increasing the operating speed. The RF device of the present research includes: a substrate; a first electrode which is mounted on the substrate and forms an actuator, part of the first electrode not contacting the substrate; and a second electrode which is apart in a regular space from the substrate and forms an actuator, part of the second electrode being overlapped with the first electrode, wherein the first electrode and the second electrode contact each other at a contact point by an electrostatic attractive force generated between the two electrodes.
    • 提供了一种使用微电子机械系统(MEMS)技术的射频装置,其可以通过降低工作电压同时提高操作速度而应用于移动通信区域。 本研究的RF器件包括:衬底; 第一电极,其安装在所述基板上并形成致动器,所述第一电极的一部分不接触所述基板; 以及第二电极,其与所述基板在规则的空间中分开并形成致动器,所述第二电极的一部分与所述第一电极重叠,其中所述第一电极和所述第二电极在接触点处通过静电吸引 在两个电极之间产生的力。
    • 8. 发明授权
    • Method for driving glasses-type stereoscopic display preventing visual fatigue and refractive index-variable shutter glasses
    • 用于驱动眼镜型立体显示器防止视觉疲劳和折射率可变快门眼镜的方法
    • US08908017B2
    • 2014-12-09
    • US12382819
    • 2009-03-24
    • Gee Young SungDu Sik ParkDong Kyung NamYun Tae KimJu Yong Park
    • Gee Young SungDu Sik ParkDong Kyung NamYun Tae KimJu Yong Park
    • H04N13/04
    • H04N13/341H04N13/337
    • Disclosed are a method for driving a glasses-type stereoscopic display preventing visual fatigue and refractive index-variable shutter glasses. The method includes generating a plurality of left-eye viewing point images and a plurality of right-eye viewing point images. The plurality of left-eye viewing point images and right-eye viewing point images have viewing points different from each other. An initial left-eye viewing point image and a subsequent left-eye viewing point image of the plurality of left-eye viewing point images are output, and an initial right-eye viewing point image and a subsequent right-eye viewing point image of the plurality of right-eye viewing point images are output. Each of the plurality of left-eye viewing point images and right-eye viewing point images is inputted into a single pupil. The glasses include a refractive index control unit to control a strength of an electric field to vary a refractive index of the glasses.
    • 公开了一种用于驱动眼镜型立体显示器来防止视觉疲劳和折射率可变快门眼镜的方法。 该方法包括生成多个左眼观察点图像和多个右眼视点图像。 多个左眼视点图像和右眼视点图像具有彼此不同的观察点。 输出多个左眼视点图像的初始左眼视点图像和随后的左眼观察点图像,并且输出初始右眼视点图像和右眼视点图像 输出多个右眼观察点图像。 将多个左眼视点图像和右眼视点图像中的每一个输入到单个瞳孔中。 眼镜包括折射率控制单元,用于控制电场的强度以改变眼镜的折射率。
    • 10. 发明授权
    • Hinge assembly and mobile device having the same
    • 铰链组件和具有相同功能的移动设备
    • US07725988B2
    • 2010-06-01
    • US11705780
    • 2007-02-14
    • Yun Tae KimKwang Soo KimSeung Don LeeHyun Suk YangJi Yeon LeeJeong Rok Lee
    • Yun Tae KimKwang Soo KimSeung Don LeeHyun Suk YangJi Yeon LeeJeong Rok Lee
    • E05D15/06
    • G06F1/1624E05D15/582E05Y2900/606G06F1/1616G06F1/1681G06F1/1683Y10T16/5323Y10T16/544Y10T16/5443Y10T16/5444Y10T16/5448Y10T16/545Y10T16/5457
    • Disclosed are a hinge assembly and a mobile device having the hinge assembly. In the mobile device, a rotation portion 14 slides and rotates on a base portion 10, so as to be inclined to the base portion 10. For this reason, the rotation portion 14 is connected to the base portion by means of the hinge assembly 20 so as to slide and rotate on the base portion 10. The rotation portion 14 slides on the base portion by a predetermined distance, and then rotates to be inclined at a desired angle with respect to the base portion 10. The rotation portion 14 easily rotates with respect to the base portion of the mobile device, so that the status of the mobile device can be easily converted. Further, when the status of the mobile device is converted, the front, rear, left and right of a display screen is not changed. As a result, the mobile device should not have a structure of changing a display direction of the display screen. Further, there is an advantage in that an electric connection between the base portion and the rotation portion by means of a connection link mechanism can be stably achieved.
    • 公开了具有铰链组件的铰链组件和移动装置。 在移动装置中,旋转部14在基部10上滑动旋转,从而与基部10倾斜。因此,旋转部14通过铰链组件20与基部连接 以便在基部10上滑动旋转。旋转部分14在基部上滑动预定距离,然后旋转以相对于基部10倾斜所需的角度。旋转部分14容易旋转 相对于移动设备的基础部分,使得可以容易地转换移动设备的状态。 此外,当移动设备的状态被转换时,显示屏幕的前,后,左,右不改变。 结果,移动设备不应该具有改变显示屏的显示方向的结构。 另外,通过连接机构,能够稳定地实现基部与旋转部之间的电连接。