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    • 24. 发明授权
    • Thermally actuated wavelength tunable optical filter
    • 热致振动波长可调滤光片
    • US07116863B2
    • 2006-10-03
    • US10819271
    • 2004-04-07
    • Chang Kyu KimMyung Lae LeeChang Auck ChoiChi Hoon JunYun Tae Kim
    • Chang Kyu KimMyung Lae LeeChang Auck ChoiChi Hoon JunYun Tae Kim
    • G02B6/26
    • G02B6/29358G02B6/29395
    • Provided is a wavelength tunable optical filter of a micro-electro-mechanical system (MEMS). The wavelength tunable optical filter comprises two optical fibers or optical waveguides having their optical axes aligned to each other, two lens for collimating light at leading ends of the optical fibers or optical waveguides, two or more mirrors formed on a substrate, thermal actuators supporting at least one of the mirrors, wherein one of the mirrors is actuated by thermal expansion of the actuator. Because all mirrors are formed on a substrate, a manufacturing process is simple and an initial resonance wavelength can be precisely adjusted. Since the thermal expansion is generated by the electrical current directly flowing through the thermal actuators, it can be actuated by a low consumption power. Also, since an electrostatic force is not used to move the mirrors, a sticking phenomenon between the mirrors does not occur, and the wavelength can be tunable in a wide range. Since the planar mirrors are arranged in parallel, the light alignment is easily performed, the line width is constant and the insertion loss is low.
    • 提供了微机电系统(MEMS)的波长可调光滤波器。 波长可调光滤波器包括两个光纤或光波导,其光轴彼此对准,用于准直光纤​​或光波导前端的光的两个透镜,形成在基板上的两个或更多个反射镜,支持在 至少一个反射镜,其中一个反射镜由致动器的热膨胀致动。 因为所有的反射镜都形成在基板上,所以制造工艺简单,可以精确调节初始共振波长。 由于热膨胀是由直接流过热致动器的电流产生的,因此可以通过低功耗来致动。 此外,由于不使用静电力来移动反射镜,所以不会发生反射镜之间的粘附现象,并且波长可以在宽范围内可调。 由于平面镜平行配置,因此容易进行光对准,线宽恒定,插入损耗低。
    • 25. 发明授权
    • PID/section filter in digital television system
    • 数字电视系统中的PID /段滤波器
    • US06654423B2
    • 2003-11-25
    • US09726570
    • 2000-12-01
    • Soo Gil JeongSee Hyun KimKyu Seok KimChang Kyu KimJin Hong Oh
    • Soo Gil JeongSee Hyun KimKyu Seok KimChang Kyu KimJin Hong Oh
    • H04N712
    • H04N21/434
    • The present invention relates to a PID/section filter which is adapted without any restriction to an ATSC standard or a DVB standard, comprising a processor module for detecting a PID and a TID by decoding the input transport stream, downloading the information requested by the viewer, and controlling the operation of the each system unit in order to store the information on a memory or ignores it, a PID comparing circuit module for comparing the PID value stored on an internal register with the PID value from the processor module, a download circuit module for downloading the extracted information among the decoded information by the processor module, and an external memory managing module for storing the information extracted in-accordance with the request of the viewer among the information decoded on the processor module.
    • 本发明涉及一种适用于对ATSC标准或DVB标准没有任何限制的PID /部分滤波器,包括用于通过解码输入传输流来检测PID和TID的处理器模块,下载由观看者请求的信息 并且控制每个系统单元的操作以将信息存储在存储器上或忽略它们; PID比较电路模块,用于将存储在内部寄存器上的PID值与来自处理器模块的PID值进行比较;下载电路 模块,用于通过处理器模块在解码的信息之间下载提取的信息;以及外部存储器管理模块,用于存储在处理器模块上解码的信息中根据观众的请求提取的信息。
    • 28. 发明申请
    • VERTICAL ACCELERATION MEASURING APPARATUS
    • 垂直加速度测量装置
    • US20090308160A1
    • 2009-12-17
    • US12355644
    • 2009-01-16
    • Chang Han JeChang Kyu KimChang Auck Choi
    • Chang Han JeChang Kyu KimChang Auck Choi
    • G01P15/125
    • G01P15/125
    • Provided is a vertical acceleration measuring apparatus including a substrate; a plumb that is separated from the substrate to operate; a plurality of movable electrode plates that are formed at an upper end of the plumb in a predetermined direction; a movable electrode plate supporting portion that is formed at the upper end of the plumb and supports the movable electrode plates; a fixed body that is formed at an upper end of the substrate; a fixed electrode plate supporting portion that is coupled to the fixed body adjacent to the upper end of the plumb; a plurality of fixed electrode plates that are supported by the fixed electrode plate supporting portion and arranged to face the movable electrode plates in parallel; and a connection spring that connects the fixed body and the movable electrode plate supporting portion.
    • 提供一种包括基板的垂直加速度测量装置; 与基板分离的铅垂操作; 多个可动电极板,其沿预定方向形成在铅垂的上端; 可动电极板支撑部分,其形成在铅垂的上端并支撑可动电极板; 形成在所述基板的上端的固定体; 固定电极板支撑部,其与所述固定体联接,所述固定体邻近所述铅垂的上端; 多个固定电极板,由固定电极板支撑部支撑并平行地面对可动电极板; 以及连接固定体和可动电极板支撑部的连接弹簧。
    • 29. 发明授权
    • Tunable-wavelength optical filter and method of manufacturing the same
    • 可调谐波长光学滤波器及其制造方法
    • US07012752B2
    • 2006-03-14
    • US11045554
    • 2005-01-27
    • Chang Auck ChoiMyung Lae LeeChang Kyu KimChi Hoon JunYoun Tae Kim
    • Chang Auck ChoiMyung Lae LeeChang Kyu KimChi Hoon JunYoun Tae Kim
    • G02B27/00
    • G02B26/001G01J3/26G02B5/0833G02B6/29361G02B6/29389G02B6/29395
    • An active type tunable wavelength optical filter having a Fabry-Perot structure is disclosed. A tunable wavelength optical filter which comprises a lower mirror in which silicon films and oxide films are sequentially laminated in a multi-layer and the silicon film is laminated on the highest portion; an upper mirror in which silicon films and oxide films are sequentially laminated in a multi-layer and the silicon film is laminated on the highest portion and which is spaced away from the lower mirror by a predetermined distance; a connecting means for connecting and supporting the lower mirror and the upper mirror to a semiconductor substrate; and electrode pads for controlling the gap between the lower mirror and the upper mirror by an electrostatic force and the method of manufacturing the same are provided. Thereby, by finely driving the upper and lower mirrors composed of a multi-layer structure of the silicon film and the oxide film by the electrostatic force, the wavelength of the transmitted light with respect to the incident light can be selectively sent.
    • 公开了一种具有法布里 - 珀罗结构的有源型可调谐波长滤光器。 一种可调波长滤光器,包括下反射镜,其中硅膜和氧化物膜顺次层叠在多层中,并且硅膜层压在最高部分上; 其中硅膜和氧化物膜顺次层叠在多层中并且硅膜层压在最高部分上并且与下反射镜间隔预定距离的上反射镜; 用于将下反射镜和上反射镜连接和支撑到半导体基板的连接装置; 以及用于通过静电力控制下反射镜和上反射镜之间的间隙的电极焊盘及其制造方法。 由此,通过利用静电力微细地驱动由硅膜和氧化膜构成的上反射镜和下反射镜,可以选择性地发送透射光相对于入射光的波长。