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    • 5. 发明申请
    • Cap Having Auxiliary Visor
    • 有辅助遮阳帽
    • US20080229470A1
    • 2008-09-25
    • US12064205
    • 2006-05-15
    • Sung-Gyu Kim
    • Sung-Gyu Kim
    • A61F9/00A42B1/00
    • A42B1/064
    • Disclosed is a cap having an auxiliary visor. The cap includes a hair band having enough elasticity to be worn on a user's head, a front visor coupled to the front of the hair band so as to block sunlight, and at least one auxiliary visor hinge-coupled to the top or bottom surface of the front visor and fixed thereto by an attachment/detachment means. The auxiliary visor is adapted to selectively unfold so as to shield the side of the user's face from UV rays, as well as fold so as to overlap the front visor for an aesthetic appearance.
    • 公开了具有辅助面罩的帽。 该帽包括具有足够弹性的发带,以佩戴在使用者的头部上,前遮阳板联接到发带的前部,以阻挡阳光;以及至少一个辅助面罩,铰链连接到顶部或底部表面 前挡板并通过附接/拆卸装置固定在其上。 辅助遮阳板适于选择性地展开,以便遮蔽使用者的脸部的一面免受紫外线,以及折叠,以便与前遮阳板重叠以获得美学外观。
    • 7. 发明授权
    • Switching apparatus and method for transceiver of cellular base station
in code division multiple access mobile telecommunication system
    • 用于码分多址移动电信系统中的蜂窝基站的收发机的切换装置和方法
    • US6002928A
    • 1999-12-14
    • US812166
    • 1997-03-06
    • Hyung-Ryul YoonSung-Gyu Kim
    • Hyung-Ryul YoonSung-Gyu Kim
    • H04B7/155H04W24/00H04Q7/32
    • H04W24/00
    • A transceiver switching apparatus and method for maintenance and repair of a troubled transceiver in a cellular base station in a CDMA mobile telecommunication system. The apparatus has a switching module having a plurality of switches in combination, capable of simultaneous control of the switches with a single control signal. The switching apparatus includes a plurality of transceivers each being capable of generating an alarm signal upon occurrence of an abnormal state therein, and an alarm release signal upon removal of the abnormal state, each of the transceivers outputting an intermediate transmitting frequency converted from an intermediate receiving frequency signal on basis of a tuning frequency, at least one spare transceiver adapted for performing the same function as the transceivers, a receiving switching circuit having pairs of inputs and outputs for delivering the intermediate receiving frequency selectively to the plurality of transceivers and/or the spare transceiver, and a transmitting switching circuit having pairs of inputs and outputs for receiving the intermediate transmitting frequency selectively from the plurality of transceivers and/or the spare transceiver.
    • 一种用于在CDMA移动电信系统中的蜂窝基站中维护和修复故障收发机的收发机切换装置和方法。 该装置具有组合有多个开关的开关模块,能够以单个控制信号同时控制开关。 开关装置包括多个收发器,每个收发器能够在发生异常状态时产生报警信号,并且在消除异常状态时产生报警释放信号,每个收发器输出从中间接收转换的中间发送频率 基于调谐频率的至少一个频率信号,适于执行与收发器相同功能的至少一个备用收发器,具有输入和输出对的接收切换电路,用于将中间接收频率选择性地传送到多个收发器和/或 备用收发器和具有输入和输出对的发送切换电路,用于从多个收发器和/或备用收发器选择性地接收中间发送频率。
    • 8. 发明授权
    • Radio frequency generator for a radio communication system
    • 用于无线电通信系统的射频发生器
    • US6078790A
    • 2000-06-20
    • US840707
    • 1997-04-25
    • Chang-Heon OhSung-Gyu Kim
    • Chang-Heon OhSung-Gyu Kim
    • H03L7/18G01S19/14H03D7/00H03L7/23H04B1/40H04B7/01
    • H04B1/403
    • A radio frequency generator in a radio communication system having a transmitter for up-converting the frequency of transmission data signals, and a receiver for down-converting the frequency of reception data signals includes: a first radio frequency generator for generating a low-band reception local oscillator frequency signal which is provided to a second mixer in the receiver; a second radio frequency generator for generating a low-band transmission local oscillator frequency signal which is provided to a first mixer in the transmitter; and a third radio frequency generator for generating a high-band local oscillator frequency signal for a first mixer of the receiver and a second mixer of the transmitter. A reference frequency generator is provided for receiving a radio frequency signal from a global position system receiver and generating a reference signal for generating local oscillator frequency signals in response thereto.
    • 一种无线电通信系统中的射频发生器,具有用于上变频发送数据信号的频率的发送器和用于对接收数据信号的频率进行下变频的接收机,包括:第一射频发生器,用于产生低频带接收 提供给接收机中的第二混频器的本地振荡器频率信号; 第二射频发生器,用于产生提供给所述发射机中的第一混频器的低频发射本地振荡器频率信号; 以及第三射频发生器,用于为接收机的第一混频器和发射器的第二混频器产生高频本地振荡器频率信号。 提供了一种参考频率发生器,用于从全球位置系统接收器接收射频信号,并产生用于响应于此产生本地振荡器频率信号的参考信号。