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40 条记录 (耗时 0.026 秒)

    Power transmission apparatus in wireless communication systems
    1.
    发明授权
    Power transmission apparatus in wireless communication systems 有权
    无线通信系统中的电力传输装置

    公开(公告)号：US07924939B2

    公开(公告)日：2011-04-12

    申请号：US12031891

    申请日：2008-02-15

    申请人： Han-Seok Kim ,  Jin-Sung Kim ,  Bum-Man Kim

    发明人： Han-Seok Kim ,  Jin-Sung Kim ,  Bum-Man Kim

    IPC分类号： H04L27/00

    CPC分类号： H04B1/0483

    摘要： An envelope elimination and restoration power transmission apparatus in a wireless communication system is provided. The apparatus comprises a signal processor for dividing a transmission signal into a size component and a phase component and for generating a control signal for controlling a current of a bias modulator according to the size component, the bias modulator for amplifying the size component according to the control signal supplied from the signal processor, for lowering an impedance characteristic of the amplified size component and for outputting the amplified size component, a frequency modulator for modulating the phase component into a radio frequency (RF) signal, and a power amplifier for amplifying the RF signal by using an output signal of the bias modulator as a bias voltage. As provided, the transmission apparatus reduces a memory effect due to an impedance difference in a modulation frequency band.

    摘要翻译： 提供了一种无线通信系统中的信封消除和恢复电力传输装置。 该装置包括信号处理器，用于将传输信号分成尺寸分量和相位分量，并根据尺寸分量产生用于控制偏置调制器的电流的控制信号，用于根据尺寸分量放大尺寸分量的偏置调制器 控制信号，用于降低放大的大小分量的阻抗特性并输出放大的大小分量;频率调制器，用于将相位分量调制成射频（RF）信号;以及功率放大器，用于放大 通过使用偏置调制器的输出信号作为偏置电压的RF信号。 如上所述，发送装置由于调制频带的阻抗差而降低存储效果。

    Apparatus for improving performance at low power region in a Doherty amplifier
    2.
    发明授权
    Apparatus for improving performance at low power region in a Doherty amplifier 有权
    用于改善Doherty放大器低功率区域性能的装置

    公开(公告)号：US08188789B2

    公开(公告)日：2012-05-29

    申请号：US13035086

    申请日：2011-02-25

    申请人： Young-Yoon Woo ,  Han-Seok Kim ,  Dong-Geun Lee ,  Bum-Man Kim ,  Jung-Hwan Moon

    发明人： Young-Yoon Woo ,  Han-Seok Kim ,  Dong-Geun Lee ,  Bum-Man Kim ,  Jung-Hwan Moon

    IPC分类号： H03F3/68

    CPC分类号： H03F1/0288

    摘要： A method and apparatus improve the performance of a carrier amplifier in a Doherty amplifier. The Doherty amplifier includes a power divider, a carrier amplifier, at least one peaking amplifier, offset lines, and a Doherty circuit. The power divider provides a power signal to each of the carrier amplifier and the at least one peaking amplifier. The carrier amplifier amplifies power of a signal inputted from the power divider. The at least one peaking amplifier amplifies power of a signal inputted from the power divider. The offset lines control a load impedance when the at least one peaking amplifier does not operate. When the at least one peaking amplifier does not operate, the Doherty circuit generates the load impedance of the carrier amplifier that is larger than twice a load impedance at the maximum output power of the carrier amplifier.

    摘要翻译： 一种方法和装置改善了Doherty放大器中载波放大器的性能。 Doherty放大器包括功率分配器，载波放大器，至少一个峰化放大器，偏移线和Doherty电路。 功率分配器向每个载波放大器和至少一个峰化放大器提供功率信号。 载波放大器放大从功率分配器输入的信号的功率。 至少一个峰值放大器放大从功率分配器输入的信号的功率。 当至少一个峰值放大器不工作时，偏移线控制负载阻抗。 当至少一个峰化放大器不工作时，Doherty电路在载波放大器的最大输出功率下产生大于负载阻抗的两倍的载波放大器的负载阻抗。

    APPARATUS FOR IMPROVING PERFORMANCE AT LOW POWER REGION IN A DOHERTY AMPLIFIER
    3.
    发明申请
    APPARATUS FOR IMPROVING PERFORMANCE AT LOW POWER REGION IN A DOHERTY AMPLIFIER 有权
    用于改善DOHERTY AMPLIFIER中低功率区域性能的设备

    公开(公告)号：US20110204974A1

    公开(公告)日：2011-08-25

    申请号：US13035086

    申请日：2011-02-25

    申请人： Young-Yoon Woo ,  Han-Seok Kim ,  Dong-Geun Lee ,  Bum-Man Kim ,  Jung-Hwan Moon

    发明人： Young-Yoon Woo ,  Han-Seok Kim ,  Dong-Geun Lee ,  Bum-Man Kim ,  Jung-Hwan Moon

    IPC分类号： H03F3/68 ,  H03F1/56

    CPC分类号： H03F1/0288

    摘要： A method and apparatus improve the performance of a carrier amplifier in a Doherty amplifier. The Doherty amplifier includes a power divider, a carrier amplifier, at least one peaking amplifier, offset lines, and a Doherty circuit. The power divider provides a power signal to each of the carrier amplifier and the at least one peaking amplifier. The carrier amplifier amplifies power of a signal inputted from the power divider. The at least one peaking amplifier amplifies power of a signal inputted from the power divider. The offset lines control a load impedance when the at least one peaking amplifier does not operate. When the at least one peaking amplifier does not operate, the Doherty circuit generates the load impedance of the carrier amplifier that is larger than twice a load impedance at the maximum output power of the carrier amplifier.

    摘要翻译： 一种方法和装置改善了Doherty放大器中载波放大器的性能。 Doherty放大器包括功率分配器，载波放大器，至少一个峰化放大器，偏移线和Doherty电路。 功率分配器向每个载波放大器和至少一个峰化放大器提供功率信号。 载波放大器放大从功率分配器输入的信号的功率。 至少一个峰值放大器放大从功率分配器输入的信号的功率。 当至少一个峰值放大器不工作时，偏移线控制负载阻抗。 当至少一个峰化放大器不工作时，Doherty电路在载波放大器的最大输出功率下产生大于负载阻抗的两倍的载波放大器的负载阻抗。

    Apparatus and method for traffic forwarding in a wireless communication system
    4.
    发明授权
    Apparatus and method for traffic forwarding in a wireless communication system 有权
    无线通信系统中的流量转发装置及方法

    公开(公告)号：US08290493B2

    公开(公告)日：2012-10-16

    申请号：US12290898

    申请日：2008-11-05

    申请人： Eun-Chan Park ,  Han-Seok Kim ,  Jae-Young Kim ,  Do-Hyun Park

    发明人： Eun-Chan Park ,  Han-Seok Kim ,  Jae-Young Kim ,  Do-Hyun Park

    IPC分类号： H04W36/00

    CPC分类号： H04W36/02

    摘要： An apparatus and method for data transmission in a base station (BS) of a wireless communication system are provided, storing data to be transmitted to a mobile station which performing handover to a target base station; confirming a quantity of stored data; determining whether to transmit the stored data to the target based at least partly on the confirmed quantity of the stored data; transmitting the stored data to the target base station when the base station determines to transmit the stored data to the target base station.

    摘要翻译： 提供了一种用于在无线通信系统的基站（BS）中进行数据传输的装置和方法，将要发送的数据存储到执行到目标基站的切换的移动台; 确认存储数据的数量; 至少部分地基于所确定的存储数据量确定是否将存储的数据传送到目标; 当基站确定将存储的数据发送到目标基站时，将存储的数据发送到目标基站。

    Epicycloidal light guide and illuminating facility
    5.
    发明授权
    Epicycloidal light guide and illuminating facility 失效
    外置光导和照明设施

    公开(公告)号：US06621978B1

    公开(公告)日：2003-09-16

    申请号：US09688239

    申请日：2000-10-16

    申请人： Joon-Sik Choi ,  Hyung-Joo Kang ,  Hyo-Sik Jeon ,  Han-Seok Kim ,  Yong-Seog Jeon ,  Gennady (Inakh) Bukhman

    发明人： Joon-Sik Choi ,  Hyung-Joo Kang ,  Hyo-Sik Jeon ,  Han-Seok Kim ,  Yong-Seog Jeon ,  Gennady (Inakh) Bukhman

    IPC分类号： G02B600

    CPC分类号： G02B6/0005 ,  G02B6/0096 ,  Y10S385/901

    摘要： The present invention relates to a light guide capable of transferring light from an illuminating apparatus to a certain distant destination. The light guide includes a light source, and a hollow guide unit extended from the light source and having a transparent lateral surface. The present invention provides a pipe shaped light guide having a cross section of an epicycloidal curve for enhancing power and a light emitting characteristic. In the present invention, light is transmitted using a light transmitting material or a prism at a portion of a cross section of the epicycloidal curve, and a reflection plate formed of a high reflection ratio is installed at the remaining portions of the cross section of the same. In addition, an expensive lens or prism is not used in the present invention thereby decreasing fabrication cost. It is possible to provide a high efficiency light guide. In particular, it is possible to improve illumination and energy efficiency characteristics by changing the type of the epicycloid or changing an optical parameter of a material which forms the wall surface of the light guide.

    摘要翻译： 本发明涉及能够将光从照明装置传送到某个远方目的地的导光体。 光导包括光源和从光源延伸并具有透明侧表面的中空引导单元。 本发明提供了一种管状光导，其具有用于增强功率和发光特性的外部交流曲线的横截面。 在本发明中，使用透光材料或棱镜在外部曲线的横截面的一部分透射光，并且在反射率的横截面的其余部分安装反射率高的反射板 相同。 此外，在本发明中不使用昂贵的透镜或棱镜，从而降低制造成本。 可以提供高效率的光导。 特别地，可以通过改变外部线性化的类型或改变形成光导的壁表面的材料的光学参数来改善照明和能量效率特性。

    Circular polarization generating system for microwave oven
    6.
    发明授权
    Circular polarization generating system for microwave oven 有权
    微波炉圆偏振发生系统

    公开(公告)号：US6097018A

    公开(公告)日：2000-08-01

    申请号：US227055

    申请日：1999-01-07

    申请人： Hyun-Jung Kim ,  Hyung-Joo Kang ,  Han-Seok Kim ,  Sang-Jin Oh ,  Sang-Jin Kim

    发明人： Hyun-Jung Kim ,  Hyung-Joo Kang ,  Han-Seok Kim ,  Sang-Jin Oh ,  Sang-Jin Kim

    IPC分类号： H05B6/64 ,  H05B6/70 ,  H05B6/74 ,  H05B6/72

    CPC分类号： H05B6/707 ,  H05B6/704

    摘要： A microwave oven includes a magnetron for generating electromagnetic wave energy, a waveguide for guiding and directing the electromagnetic wave energy into a cavity body defining a cooking chamber, and an antenna for radiating the electromagnetic wave energy generated by the magnetron into the waveguide. The waveguide includes a first opening for uniformly dispersing the electromagnetic wave energy into the cooking chamber, a second opening for uniformly dispersing the electromagnetic wave energy into the cooking chamber, and a short circuit for providing a short surface to the antenna. The first opening is formed on a portion of the waveguide which contacts the cavity body and extends along a longitudinal direction. The second opening is spaced away from and having a predetermined angle with respect to the first opening.

    摘要翻译： 微波炉包括用于产生电磁波能量的磁控管，用于将电磁波能量引导并引导到限定烹饪室的空腔体中的波导，以及用于将由磁控管产生的电磁波能量辐射到波导中的天线。 波导包括用于将电磁波能量均匀地分散到烹饪室中的第一开口，用于将电磁波能量均匀地分散到烹饪室中的第二开口，以及用于向天线提供短表面的短路。 第一开口形成在波导的与空腔体接触并沿纵向方向延伸的部分上。 第二开口相对于第一开口间隔开并具有预定的角度。

    Structure for protecting radio frequency remote head
    9.
    发明授权
    Structure for protecting radio frequency remote head 有权
    保护射频遥控头的结构

    公开(公告)号：US08986087B2

    公开(公告)日：2015-03-24

    申请号：US13500415

    申请日：2010-10-06

    申请人： Ji-Hyeon Choi ,  Seong-Yong Park ,  Han-Seok Kim ,  Jun-Sung Lee

    发明人： Ji-Hyeon Choi ,  Seong-Yong Park ,  Han-Seok Kim ,  Jun-Sung Lee

    IPC分类号： H05K5/00 ,  H04B1/03

    CPC分类号： H04B1/03

    摘要： A structure is provided for protecting a Radio Frequency Remote Head (RRH). The structure includes a solar head and a solar body. An upper side of the solar head is sloped to prevent an inflow of rainwater and has at least one solar panel, and a lower side thereof has at least one round cable hole surrounded by a rubber material. The solar body is situated on a lower end of the solar head and includes a plurality of solar panels, a side of each of which is sloped to prevent an inflow of rainwater and is openable upward. An upper end of the solar body has an air outlet formed to exhaust air, and a lower end thereof has an air inlet formed to receive air. The air outlet and the air inlet each have a plurality of supports arranged at specific intervals and connected by a protection net.

    摘要翻译： 提供了一种用于保护射频远程头（RRH）的结构。 该结构包括太阳能头和太阳能体。 太阳能头的上侧倾斜以防止雨水流入，并且具有至少一个太阳能电池板，并且其下侧具有被橡胶材料包围的至少一个圆形电缆孔。 太阳能体位于太阳能头的下端并且包括多个太阳能电池板，每个太阳能电池板的一侧倾斜以防止雨水的流入并且可向上打开。 太阳能体的上端具有形成为排出空气的空气出口，其下端具有形成为接收空气的空气入口。 空气出口和空气入口各自具有以特定间隔布置的多个支撑件，并通过保护网连接。

    Process for preparing iodinated aromatic compounds
    10.
    发明授权
    Process for preparing iodinated aromatic compounds 有权
    制备碘化芳香族化合物的方法

    公开(公告)号：US08614362B2

    公开(公告)日：2013-12-24

    申请号：US13133904

    申请日：2009-12-10

    申请人： Joong-ki Lee ,  Han-Seok Kim ,  Jae-Bong Lim ,  Il-Hoon Cha

    发明人： Joong-ki Lee ,  Han-Seok Kim ,  Jae-Bong Lim ,  Il-Hoon Cha

    IPC分类号： C07C17/00

    CPC分类号： C07C17/156 ,  B01J29/06 ,  C07C25/02

    摘要： The present invention relates to a process for preparing iodinated aromatic compounds. Particularly, the present invention comprises the step of performing the iodination of a non-halogenated aromatic compound, a monoiodo aromatic compound, a diiodo aromatic compound, and iodine in the presence of a zeolite catalyst under oxygen atmosphere.In the process for preparing iodinated aromatic compounds according to the present invention, an iodination and an iodine conversion simultaneously occur, and then prevent side-reactions. Also, the lifetime of an iodination catalyst used therein can be extended by controlling the reaction temperature stably. Therefore, the process can be used for mass production of diiodo compound.

    摘要翻译： 本发明涉及一种制备碘化芳族化合物的方法。 特别地，本发明包括在氧气氛下在沸石催化剂存在下进行非卤代芳族化合物，单碘芳族化合物，二碘芳族化合物和碘的碘化的步骤。 在本发明的碘化芳族化合物的制备方法中，同时发生碘化和碘转化，然后防止副反应。 此外，通过稳定地控制反应温度，可以延长其中使用的碘化催化剂的寿命。 因此，该方法可用于二碘化合物的批量生产。