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    • 21. 发明授权
    • Apparatus and method for processing analog signals and outputting digitally converted analog signals using serial bus
    • 用于处理模拟信号并使用串行总线输出数字转换的模拟信号的装置和方法
    • US07453380B2
    • 2008-11-18
    • US11588139
    • 2006-10-26
    • Eui Suk JungChul Soo LeeSeung Hyun JangByoung Whi Kim
    • Eui Suk JungChul Soo LeeSeung Hyun JangByoung Whi Kim
    • H03M1/00
    • G06F3/05G06F13/385G06F13/4291
    • Provided are an apparatus and method for processing analog monitoring signals by using a serial bus. The apparatus includes a multiplexer receiving at least one analog signal and outputting only one of the at least one analog signal in response to a predetermined control signal; an analog-to-digital converter converting the output analog signal into a digital signal; a first controller generating the control signal, outputting the control signal to the multiplexer, and controlling the operation of the analog-to-digital converter; and a bus controller outputting the digital signal via an external serial bus. Accordingly, analog monitoring signals are received, converted into digital data, and output via serial bus even when a large number of analog monitoring signals are present, only if the address input to the apparatus is identical to unique address of the apparatus.
    • 提供了一种通过使用串行总线来处理模拟监视信号的装置和方法。 该装置包括多路复用器,其接收至少一个模拟信号,并且响应于预定的控制信号仅输出至少一个模拟信号中的一个; 将所述输出模拟信号转换成数字信号的模数转换器; 产生控制信号的第一控制器,将控制信号输出到多路复用器,并控制模数转换器的操作; 以及总线控制器,经由外部串行总线输出数字信号。 因此,只有当输入到设备的地址与设备的唯一地址相同时,即使当存在大量模拟监视信号时,模拟监视信号也被接收,转换成数字数据,并通过串行总线输出。
    • 22. 发明授权
    • Optical CDMA transmitting apparatus and method for transmitting bipolar data
    • 光CDMA发送装置及发送双极数据的方法
    • US07308199B2
    • 2007-12-11
    • US10645289
    • 2003-08-18
    • Bong Kyu KimYounghee YeonByoung Whi KimHyeong Ho LeeSangjo Park
    • Bong Kyu KimYounghee YeonByoung Whi KimHyeong Ho LeeSangjo Park
    • H04J4/00H04J14/00H04B10/04H04B10/12
    • H04J14/005H04J13/16
    • Provided is an optical Code Division Multiple Access (CDMA) transmitting apparatus and method for transmitting bipolar data in an optical CDMA system. The optical CDMA transmitting apparatus and method of the present research has a simple structure, including only one optical CDMA encoder and one optical modulator. This technology minimizes multiple access interference by using modified pseudo-noise code in the encoding process, thus improving the optical CDMA transmission performance. The optical CDMA transmitting apparatus includes: an optical CDMA encoding means for encoding lights from the outside into a code or a complement code of the code; and an optical modulation means for transmitting the code or the complement code of the code which is selected in the optical CDMA encoding means based on the polarity (either ‘0’ or ‘1’) of the data inputted from the outside.
    • 提供了一种用于在光CDMA系统中传输双极性数据的光码分多址(CDMA)发射装置和方法。 本研究的光CDMA发射装置和方法具有简单的结构,仅包括一个光CDMA编码器和一个光调制器。 该技术通过在编码处理中使用修改的伪噪声码来最大限度地减少多址接入干扰,从而提高光CDMA传输性能。 光CDMA发送装置包括:用于将来自外部的光编码为码的码或补码的光CDMA编码装置; 以及光调制装置,用于基于从外部输入的数据的极性(“0”或“1”)发送在光CDMA编码装置中选择的码的码或补码。
    • 24. 发明申请
    • ATHERMAL EXTERNAL CAVITY LASER
    • ATHERMAL外部CAVITY激光
    • US20100014545A1
    • 2010-01-21
    • US12504968
    • 2009-07-17
    • Jie Hyun LeeMahn Yong ParkGeon JeongChul Young KimSeung Hyun ChoWoo Ram LeeByoung Whi Kim
    • Jie Hyun LeeMahn Yong ParkGeon JeongChul Young KimSeung Hyun ChoWoo Ram LeeByoung Whi Kim
    • H01S3/10
    • H01S5/146G02B6/0218G02B6/0219G02B6/4206H01S5/02284H01S5/02288H01S5/0654H01S5/141H01S5/142
    • Provided is an athermal external cavity laser (ECL), whose output optical power and output wavelength can be kept regular irrespective of temperature changes without using additional temperature controlling components. The ECL comprises: a semiconductor amplifier; an optical fiber comprising a core in which a Bragg grating is formed and a cladding surrounding the core; and a thermosetting polymer that fixes the optical fiber to a ferrule and has a negative thermooptical coefficient, wherein the thickness of the cladding surrounding the core in which the Bragg grating is formed is smaller than the portion of the cladding surrounding the portion of the core where the Bragg grating is not formed, and the thermosetting polymer the negative thermooptical coefficient surrounds the cladding. The ECL does not need additional temperature controlling components and thus can be manufactured compact and at low cost, and thus can be used as a light source of a dense wavelength division multiplexing (DWDM) system in designing economical WDM passive optical networks (PON).
    • 提供了一种无热外腔激光器(ECL),其输出光功率和输出波长可以在不使用额外的温度控制部件的情况下保持规则,而不管温度变化。 ECL包括:半导体放大器; 包括其中形成布拉格光栅的芯和围绕所述芯的包层的光纤; 以及热固性聚合物,其将光纤固定到套圈并且具有负热光学系数,其中形成布拉格光栅的芯周围的包层的厚度小于围绕芯的部分的包层部分的厚度, 不形成布拉格光栅,并且热固性聚合物的负热光学系数围绕包层。 ECL不需要额外的温度控制部件,因此可以制造成本小,成本低,因此可以用作密集波分复用(DWDM)系统的光源,用于设计经济的WDM无源光网络(PON)。
    • 25. 发明授权
    • WDM-PON system based on wavelength-tunable external cavity laser light source
    • 基于波长可调谐外腔激光光源的WDM-PON系统
    • US07471899B2
    • 2008-12-30
    • US10968423
    • 2004-10-18
    • Byoung Whi KimHyeong Ho LeeJae Woo Yang
    • Byoung Whi KimHyeong Ho LeeJae Woo Yang
    • H04J14/00
    • H04J14/0282H04J14/0226H04J14/0246H04J14/025
    • Provided is a WDM-PON system based on a wavelength-tunable ECL. A method of controlling an upstream optical wavelength of an ONT in WDM-PON system, the method comprises: determining upstream optical wavelength information of the ONT corresponding to a downstream optical wavelength predetermined to the ONT newly installed by being connected to a network; in an OLT, loading the determined upstream optical wavelength information onto the downstream optical wavelength assigned to the ONT and transmitting the loaded upstream optical wavelength information to the ONT; in the ONT, generating an upstream optical wavelength based on the upstream optical wavelength information transmitted by being loaded on the downstream optical wavelength from the OLT; and in the ONT, loading upstream data onto the generated upstream optical wavelength and transmitting the loaded upstream data to the OLT.
    • 提供了一种基于波长可调ECL的WDM-PON系统。 一种在WDM-PON系统中控制ONT的上行光波长的方法,该方法包括:通过连接到网络,确定新安装的ONT对应于下行光波长的上行光波长信息; 在OLT中,将确定的上行光波长信息加载到分配给ONT的下行光波长,并将加载的上行光波长信息发送到ONT; 在ONT中,基于通过从OLT向下游光波长加载而发送的上行光波长信息生成上行光波长; 并且在ONT中,将上行数据加载到生成的上行光波长上,并将加载的上行数据传送到OLT。
    • 27. 发明授权
    • Optical transceiver for transmitting light source control information and optical network using the same
    • 用于传输光源控制信息和光网络的光收发器
    • US07421206B2
    • 2008-09-02
    • US11126591
    • 2005-05-10
    • Chul Soo LeeByoung Whi KimEui Suk JungSeung Hyun Jang
    • Chul Soo LeeByoung Whi KimEui Suk JungSeung Hyun Jang
    • H04J14/02H04B10/24
    • H04J14/0298H04B10/40H04J14/0226H04J14/0247H04J14/0252H04J14/0282
    • An optical transceiver for transmitting light source control information, which is applied to a Subcarrier Multiplexing optical network, is disclosed. The optical transceiver includes a controller, an SCM frame generation/restoring unit, a modulator/demodulator, and an EO/OE converter. The controller controls transmission of light source control information or collects received light source control information. The SCM frame generation/restoring unit generates an SCM frame containing light source control information received from the controller. The modulator/demodulator modulates an SCM frame generated by the SCM frame generation/restoring unit into a signal suitable for transmission. The EO/OE converter converts a transmission signal modulated by the modulator/demodulator into an optical signal and transmits the optical signal through an optical fiber. An optical network having a telephone office OLT and subscriber ONTs, each having the optical transceiver, is also disclosed.
    • 公开了一种用于发送应用于子载波复用光网络的光源控制信息的光收发器。 光收发器包括控制器,SCM帧生成/恢复单元,调制器/解调器和EO / OE转换器。 控制器控制光源控制信息的传输或收集所接收的光源控制信息。 SCM帧生成/恢复单元生成包含从控制器接收的光源控制信息的SCM帧。 调制器/解调器将由SCM帧生成/恢复单元生成的SCM帧调制成适合于传输的信号。 EO / OE转换器将由调制器/解调器调制的传输信号转换为光信号,并通过光纤传输光信号。 还公开了具有电话局OLT和用户ONT的光网络,每个具有光收发器。
    • 28. 发明授权
    • WDM/SCM-PON and media access control method for asymmetric packet communication in the same
    • WDM / SCM-PON和媒体访问控制方法在非对称分组通信中相同
    • US07330655B2
    • 2008-02-12
    • US10912340
    • 2004-08-04
    • Tae Yeon KimJeong Ju YooByoung Whi Kim
    • Tae Yeon KimJeong Ju YooByoung Whi Kim
    • H04J14/02
    • H04J14/0282H04J14/0227H04J14/0241H04J14/0298H04Q11/0067H04Q2011/0016H04Q2011/0086
    • The present invention relates to a WDM/SCM-PON and a media access control method for asymmetric packet communication in the same. In the WDM/SCM-PON, each SCM channel is classified and used as a link by adopting an SCM technique of subdividing a wavelength band of up/downstream data links between an OLT and ONTs into frequency bands, and the ONTs are formed so that a certain SCM channel is independently distributed not fixedly assigned. Accordingly, an inventory problem, which can be generated in WDM/SCM, is prevented before happens, asymmetric dynamic band allocation is performed, and asymmetric service of up/downstream transmission is supported. As a result, a band required for next generation service is dynamically provided, optical interference effect is minimized, and Ethernet compatibility is provided so that Ethernet service suitable for providing IP service can be accommodated.
    • 本发明涉及一种WDM / SCM-PON及其中的非对称分组通信的媒体接入控制方法。 在WDM / SCM-PON中,通过采用将OLT和ONT之间的上下行数据链路的波段划分成频带的SCM技术将每个SCM信道分类并用作链路,并且形成ONT,使得 某个SCM信道是独立分配的,没有固定分配。 因此,在发生之前可以防止在WDM / SCM中产生的库存问题,执行非对称动态频带分配,支持上下行传输的非对称业务。 结果,动态地提供了下一代业务所需的频带,减少了光干扰效应,提供了以太网兼容性,从而可以适应提供IP业务的以太网业务。