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1. 发明授权

US5668652A Optical WDM (wavelength division multiplexing) transmission system and method for configuring the same 失效
标题翻译：光WDM（波分复用）传输系统及其配置方法
公开(公告)号：US5668652A
公开(公告)日：1997-09-16
申请号：US602493
申请日：1996-02-20
申请人： Masashi Hashomoto , Norio Tamaki , Kiyomi Kumozaki , Ryu-ichi Watanabe
发明人： Masashi Hashomoto , Norio Tamaki , Kiyomi Kumozaki , Ryu-ichi Watanabe
IPC分类号： H04J14/02
CPC分类号： H04J14/0282 , H04J14/0227 , H04J14/0232 , H04J14/0247 , H04J14/0252
摘要： An optical WDM transmission system formed by integrating by using an optical WDM device at least two point-to-multipoint optical transmission systems which provide independent services by using optical signals of different wavelengths. It provides a plurality of user terminals with optical signals obtained by splitting with an optical splitter an optical signal which is wavelength multiplexed by the WDM device. The splitting numbers of optical splitters placed ahead of or behind the WDM device are set such that a loss from the center terminal to the user terminals of each optical transmission system falls within an allowed loss of each system. Since the splitting numbers of the optical system of each system can be set independently, each system can accommodate a maximum number of user terminals per center terminal within the allowed loss of the system.
摘要翻译：通过使用光学WDM设备对通过使用不同波长的光信号提供独立服务的至少两个点对多点光传输系统进行集成而形成的光WDM传输系统。它提供了多个用户终端，其具有通过与光分路器分离由WDM设备波长多路复用的光信号而获得的光信号。设置在WDM装置前方或后方的分光器的分割数被设定为使得从每个光传输系统的中心终端到用户终端的损耗落入每个系统的允许的损失之内。由于每个系统的光学系统的分割数可以独立设置，所以每个系统可以容纳在允许的系统损失内的每个中心终端的最大数量的用户终端。

2. 发明授权

US06470017B1 Packet multiplexing apparatus 有权
标题翻译：分组多路复用装置
公开(公告)号：US06470017B1
公开(公告)日：2002-10-22
申请号：US09292987
申请日：1999-04-16
申请人： Akihiro Otaka , Noriki Miki , Norio Tamaki
发明人： Akihiro Otaka , Noriki Miki , Norio Tamaki
IPC分类号： H04L1228
CPC分类号： H04J3/247 , H04J3/24 , H04L12/2801 , H04L47/13 , H04L47/50 , H04L47/522 , H04L47/6225 , H04L47/6235 , H04L47/624 , H04L49/9031
摘要： A packet multiplexing apparatus is presented for multiplexing packets to be transmitted from a number of user facilities to a local service node in such a way to assure equal access to the output port for all the users. The apparatus is provided with input ports for inputting a packet in a respective input port; a buffer memory provided for each input port for temporary storage of a packet; an output signal transmission circuit for retrieving a packet from each buffer memory in a specific sequence; an output port for transmitting packets output from the output signal transmission circuit; and a retrieval sequencing section for controlling the specific sequence by changing a retrieving order of packets from buffer memories for each complete round of packet retrieval so that a frequency of the retrieving order for each input port is uniformly shared by the input ports.
摘要翻译：提供了一种分组多路复用装置，用于将要从多个用户设施发送的分组复用到本地服务节点，以确保对所有用户等同地访问输出端口。该设备具有用于在相应输入端口中输入分组的输入端口; 为每个输入端口提供的用于临时存储分组的缓冲存储器; 输出信号传输电路，用于以特定顺序从每个缓冲存储器检索分组; 输出端口，用于发送从输出信号传输电路输出的分组; 以及检索顺序部分，用于通过每个完整的分组检索改变来自缓冲存储器的分组的检索顺序来控制特定序列，使得每个输入端口的检索顺序的频率被输入端口均匀地共享。

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