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    • 1. 发明公开
    • 시분할다중 방식의 수동형 광네트웍 및 그 동적 대역폭할당 방법
    • 时分多址无源光网络及其动态带宽分配方法
    • KR1020070081908A
    • 2007-08-20
    • KR1020060014181
    • 2006-02-14
    • 삼성전자주식회사고려대학교 산학협력단
    • 정대광황성택박진우이상록이성근
    • H04B10/2581H04J14/08
    • H04J14/0226H04J14/0247H04J14/0252H04J14/0282
    • A TDM-PON(Time Division Multiplexed Passive Optical Network) and a dynamic bandwidth allocation method thereof are provided to perform a distributed and simple process of a dynamic bandwidth allocation such that a load put on an OLT(Optical Line Terminal) can be alleviated and a cost for implementing the OLT can be reduced. A TDM-PON comprises an OLT(110), an RN(Regional Node,160) and ONUs(Optical Network Units)(200-1-200-N). The RN(160) includes plural assistant optical distributors making 1 to 2 connection with plural ONUs, generates a pair of optical signals by making each assistant optical distributor a corresponding uplink optical signal inputted from one between a pair of connected ONUs, transmits one between the pair of the optical signals to the OLT, and transmits the other optical signal to the other connected ONU. The ONUs generate and output corresponding uplink optical signals while not receiving the uplink optical signals from the RN.
    • 提供了TDM-PON(时分多路复用无源光网络)及其动态带宽分配方法,以便分散简单地进行动态带宽分配处理,从而可以减轻放置在OLT(光线路终端)上的负载, 可以减少实现OLT的成本。 TDM-PON包括OLT(110),RN(区域节点160)和ONU(光网络单元)(200-1-200-N)。 RN(160)包括与多个ONU进行1至2连接的多个辅助光分配器,通过使每个辅助光分路器从一对连接的ONU之间输入的对应的上行光信号产生一对光信号, 一对光信号到OLT,并将另一个光信号发送到另一个连接的ONU。 ONU在不从RN接收上行光信号的同时生成并输出相应的上行光信号。
    • 4. 发明授权
    • 수동형 광 가입자 망
    • 被动光网络
    • KR100735292B1
    • 2007-07-03
    • KR1020060010568
    • 2006-02-03
    • 삼성전자주식회사고려대학교 산학협력단
    • 정대광오윤제박진우이상록김일래
    • H04B10/2581H04L12/28
    • H04J14/0226H04J14/0246H04J14/0247H04J14/025H04J14/0252H04J14/0282
    • A PON(Passive Optical Network) is provided to solve a problem that an installation cost of a subscriber increases because a high-priced analog distribution feedback laser should be used. A CO(Central Office)(210) generates downlink optical signals and receives multiplexed uplink optical signals. Plural subscriber units(240-1-240-M) receive a corresponding downlink optical signal and generate a sub-carrier channel including electric data of an allocated frequency. Converters(230-1-230-N) convert the sub-carrier channels into the uplink optical signals. A multiplexing/demultiplexing unit(221) demultiplexes the downlink optical signals which have been multiplexed in the CO(210) and outputs them to a corresponding converter, and multiplexes uplink optical signals received from the converters(230-1-230-N) and outputs them into the CO(210). Intensity separators(235-1-235-N) separate a downlink optical signal of a corresponding wavelength and output the same to corresponding linked subscriber units, and output sub-carrier channels received from the corresponding linked subscriber units to the converters(230-1-230-N).
    • 提供了PON(被动光网络)来解决用户的安装成本增加的问题,因为应该使用高价格的模拟分布反馈激光器。 CO(中心局)(210)生成下行光信号并接收复用的上行光信号。 多个用户单元(240-1-240-M)接收相应的下行链路光信号并产生包括分配频率的电数据的子载波信道。 转换器(230-1-230-N)将子载波信道转换成上行链路光信号。 复用/解复用单元(221)对已经被复用在CO(210)中的下行链路光信号进行解复用并将其输出到相应的转换器,并且复用从转换器(230-1-230-N)接收的上行光信号和 将它们输出到CO(210)中。 强度分离器(235-1-235-N)将相应波长的下行链路光信号分离并输出到对应的链接用户单元,并将从对应的链接用户单元接收的副载波信道输出到转换器(230-1 -230-N)。