公开(公告)号：US20120234021A1

公开(公告)日：2012-09-20

申请号：US13416224

申请日：2012-03-09

申请人： Motoaki OKUDA ,  Naoya YOKOMACHI ,  Hiromi UEDA ,  Junki NAKAMURA

发明人： Motoaki OKUDA ,  Naoya YOKOMACHI ,  Hiromi UEDA ,  Junki NAKAMURA

IPC分类号： F28F3/00 ,  F25B21/02

CPC分类号： F28F3/12 ,  B60H1/00321 ,  B60H2001/003 ,  F25B21/02 ,  F25B2321/023 ,  F25B2321/025 ,  F28F3/025 ,  F28F9/26

摘要： A heat exchanger comprises a housing, a guide member, a return member and a discharge member. The housing includes a plurality of parallel flow passages. The housing includes a first end face and a second end face each having openings. The guide member, the return member and the discharge member are fixed to the first end face or the second end face. The plurality of flow passages are connected by the return member into a single flow passage. The guide member and the discharge member are provided in the opening on a most upstream side and a most downstream of the single flow passage, respectively. At least one of the guide member, the return member and the discharge member integrally includes an attachment portion attached to the housing; and a protruding portion protruding more than the attachment portion toward the housing and including an inclined surface.

摘要翻译： 热交换器包括壳体，引导构件，返回构件和排出构件。 壳体包括多个平行的流动通道。 壳体包括第一端面和每个具有开口的第二端面。 引导构件，返回构件和排出构件固定到第一端面或第二端面。 多个流动通道由返回构件连接成单个流动通道。 引导构件和排出构件分别设置在单个流动通道的最上游侧和最下游侧的开口中。 引导构件，返回构件和排出构件中的至少一个整体地包括附接到壳体的附接部分; 以及突出部分，其突出于所述附接部分朝向所述壳体并且包括倾斜表面。

公开(公告)号：US07577362B2

公开(公告)日：2009-08-18

申请号：US11271817

申请日：2005-11-14

申请人： Hiroyuki Kasai ,  Toshinori Tsuboi ,  Hiromi Ueda ,  Takumi Nomura ,  Hirokazu Kobayashi ,  Kunitetsu Makino ,  Hiroyuki Endo

发明人： Hiroyuki Kasai ,  Toshinori Tsuboi ,  Hiromi Ueda ,  Takumi Nomura ,  Hirokazu Kobayashi ,  Kunitetsu Makino ,  Hiroyuki Endo

IPC分类号： H04J14/00

CPC分类号： H04J14/0226 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0282 ,  H04Q11/0005 ,  H04Q11/0067

摘要： An optical access network method, an optical access network and an optical switch for an optical access network, capable of solving all the three problems in the conventional GE-PON: transmission distance problem, security problem and communication interference problem. The optical access network comprises an OLT, a plurality of ONUs and one or more stages of optical switches, which are connected one another. In the direction from the OLT to the ONU, each frame (packet) transmitted from the OLT to one of the ONUs is checked so that only the destination ONU specified in the frame (packet) is connected to the OLT. In the direction from the ONU to the OLT, a control message transmitted from the OLT to one of the ONUs is checked so that only one ONU which has been given a transmission allowance from the OLT is connected to the OLT with respect to each frame (packet).

摘要翻译： 光接入网方法，光接入网和光接入网光交换机，能够解决传统GE-PON：传输距离问题，安全问题和通信干扰问题的所有三个问题。 光接入网络包括彼此连接的OLT，多个ONU和一个或多个光交换机级。 在从OLT到ONU的方向上，检查从OLT发送到ONU之一的每个帧（分组），使得只有在帧（分组）中指定的目的地ONU连接到OLT。 在从ONU到OLT的方向上，检查从OLT发送到ONU之一的控制消息，使得只有一个已经从OLT给予传输允许的ONU相对于每个帧连接到OLT（ 包）。

公开(公告)号：US08331781B2

公开(公告)日：2012-12-11

申请号：US12518683

申请日：2007-12-27

申请人： Takumi Nomura ,  Hiromi Ueda ,  Takashi Kuriyama ,  Toshinori Tsuboi ,  Hiroyuki Kasai ,  Hirokazu Kobayashi

发明人： Takumi Nomura ,  Hiromi Ueda ,  Takashi Kuriyama ,  Toshinori Tsuboi ,  Hiroyuki Kasai ,  Hirokazu Kobayashi

IPC分类号： H04J14/00

CPC分类号： H04Q11/0067 ,  H04Q11/0066

摘要： The present invention is to provide an optical access network in which a remote unit receives an optical burst signal. A central unit (OLT) transmits a DC-balanced optical continuous signal including packets having identification information for identifying each remote unit (ONU) to an optical switching module (OSM). The optical switching module (OSM) receives the DC-balanced optical continuous signal from the central unit (OLT), optically switches the packets based on the identification information, and transmits a DC-balanced optical burst signal including the packets to the remote unit (ONU). The remote unit (ONU) receives the DC-balanced optical burst signal and acquires the packets transmitted to the remote unit (ONU).

摘要翻译： 本发明是提供一种光接入网络，其中远程单元接收光突发信号。 中央单元（OLT）将具有用于识别每个远程单元（ONU）的识别信息的分组的DC平衡光连续信号发送到光交换模块（OSM）。 光交换模块（OSM）从中央单元（OLT）接收直流均衡的光连续信号，根据识别信息对数据包进行光交换，并将包含数据包的直流平衡光脉冲信号发送到远程单元（ ONU）。 远程单元（ONU）接收直流平衡光突发信号并获取发往远程单元（ONU）的数据包。

公开(公告)号：US08045857B2

公开(公告)日：2011-10-25

申请号：US11640951

申请日：2006-12-19

申请人： Takumi Nomura ,  Hiromi Ueda ,  Kunitetsu Makino ,  Hiroaki Kurokawa ,  Toshinori Tsuboi ,  Hiroyuki Kasai ,  Hirokazu Kobayashi

发明人： Takumi Nomura ,  Hiromi Ueda ,  Kunitetsu Makino ,  Hiroaki Kurokawa ,  Toshinori Tsuboi ,  Hiroyuki Kasai ,  Hirokazu Kobayashi

IPC分类号： H04B10/02

CPC分类号： H04Q11/0067 ,  H04Q11/0066 ,  H04Q11/0071

摘要： In an optical access network using an optical switching device, a 2×1 optical splitter in the uplink and downlink directions is eliminated to extend the transmission distance between the OLT and the ONU. An optical switching device includes a downlink optical switch element for switching a downlink optical signal sent by an OLT, an uplink optical switch element for switching an uplink optical signal sent by a plurality of ONU, an O/E for converting a downlink optical signal to a first electrical signal, an E/O for converting the first electrical signal to a downlink optical signal and inputting the downlink optical signal to the downlink optical element, an O/E for converting an uplink optical signal output from the uplink optical switch element to a second electrical signal, and an E/O for converting the second electrical signal to an uplink optical signal and sending the uplink optical signal to the OLT.

摘要翻译： 在使用光交换设备的光接入网中，消除了上行和下行方向上的2×1光分路器，以延长OLT与ONU之间的传输距离。 一种光交换装置，包括用于切换由OLT发送的下行光信号的下行光开关元件，用于切换由多个ONU发送的上行光信号的上行光开关元件，将下行光信号转换为 第一电信号，用于将第一电信号转换为下行光信号并将下行光信号输入到下行光学元件的E / O，用于将从上行光开关元件输出的上行光信号转换为 第二电信号和用于将第二电信号转换为上行光信号并将上行光信号发送到OLT的E / O。

公开(公告)号：US20110008043A1

公开(公告)日：2011-01-13

申请号：US12518683

申请日：2007-12-27

申请人： Takumi Nomura ,  Hiromi Ueda ,  Takashi Kuriyama ,  Toshinori Tsuboi ,  Hiroyuki Kasai ,  Hirokazu Kobayashi

发明人： Takumi Nomura ,  Hiromi Ueda ,  Takashi Kuriyama ,  Toshinori Tsuboi ,  Hiroyuki Kasai ,  Hirokazu Kobayashi

IPC分类号： H04J14/00

CPC分类号： H04Q11/0067 ,  H04Q11/0066

摘要： The present invention is to provide an optical access network in which a remote unit receives an optical burst signal. A central unit (OLT) transmits a DC-balanced optical continuous signal including packets having identification information for identifying each remote unit (ONU) to an optical switching module (OSM). The optical switching module (OSM) receives the DC-balanced optical continuous signal from the central unit (OLT), optically switches the packets based on the identification information, and transmits a DC-balanced optical burst signal including the packets to the remote unit (ONU). The remote unit (ONU) receives the DC-balanced optical burst signal and acquires the packets transmitted to the remote unit (ONU).

摘要翻译： 本发明是提供一种光接入网络，其中远程单元接收光突发信号。 中央单元（OLT）将具有用于识别每个远程单元（ONU）的识别信息的分组的DC平衡光连续信号发送到光交换模块（OSM）。 光交换模块（OSM）从中央单元（OLT）接收直流均衡的光连续信号，根据识别信息对数据包进行光交换，并将包含数据包的直流平衡光脉冲信号发送到远程单元（ ONU）。 远程单元（ONU）接收直流平衡光突发信号并获取发往远程单元（ONU）的数据包。

公开(公告)号：US20070172236A1

公开(公告)日：2007-07-26

申请号：US11640951

申请日：2006-12-19

申请人： Takumi Nomura ,  Hiromi Ueda ,  Kunitetsu Makino ,  Hiroaki Kurokawa ,  Toshinori Tsuboi ,  Hiroyuki Kasai ,  Hirokazu Kobayashi

发明人： Takumi Nomura ,  Hiromi Ueda ,  Kunitetsu Makino ,  Hiroaki Kurokawa ,  Toshinori Tsuboi ,  Hiroyuki Kasai ,  Hirokazu Kobayashi

IPC分类号： H04L12/56 ,  H04J14/00

CPC分类号： H04Q11/0067 ,  H04Q11/0066 ,  H04Q11/0071

摘要： In an optical access network using an optical switching device, a 2×1 optical splitter in the uplink and downlink directions is eliminated to extend the transmission distance between the OLT and the ONU. An optical switching device includes a downlink optical switch element for switching a downlink optical signal sent by an OLT, an uplink optical switch element for switching an uplink optical signal sent by a plurality of ONU, an O/E for converting a downlink optical signal to a first electrical signal, an E/O for converting the first electrical signal to a downlink optical signal and inputting the downlink optical signal to the downlink optical element, an O/E for converting an uplink optical signal output from the uplink optical switch element to a second electrical signal, and an E/O for converting the second electrical signal to an uplink optical signal and sending the uplink optical signal to the OLT.

摘要翻译： 在使用光交换装置的光接入网中，消除了上行方向和下行方向的2×1光分路器，以扩大OLT与ONU之间的传输距离。 一种光交换装置，包括用于切换由OLT发送的下行光信号的下行光开关元件，用于切换由多个ONU发送的上行光信号的上行光开关元件，将下行光信号转换为 第一电信号，用于将第一电信号转换为下行光信号并将下行光信号输入到下行光学元件的E / O，用于将从上行光开关元件输出的上行光信号转换为 第二电信号和用于将第二电信号转换为上行光信号并将上行光信号发送到OLT的E / O。

公开(公告)号：US20060239285A1

公开(公告)日：2006-10-26

申请号：US11366842

申请日：2006-03-03

申请人： Takumi Nomura ,  Hiromi Ueda ,  Kunitetsu Makino ,  Hiroyuki Kasai ,  Toshinori Tsuboi ,  Hiroaki Kurokawa ,  Hirokazu Kobayashi ,  Hiroyuki Endo

发明人： Takumi Nomura ,  Hiromi Ueda ,  Kunitetsu Makino ,  Hiroyuki Kasai ,  Toshinori Tsuboi ,  Hiroaki Kurokawa ,  Hirokazu Kobayashi ,  Hiroyuki Endo

IPC分类号： H04L12/56

CPC分类号： H04Q11/0067 ,  H04J3/0682 ,  H04L7/0075 ,  H04Q2011/0045 ,  H04Q2011/0064

摘要： To provide synchronizing methods, optical switch modules, center devices, remote devices, optical access systems, optical access networks, programs, and recording media in the optical access network which can give the connection start time of the upstream optical switching element of the optical switch module. To the optical switch module, ranging functions are provided and the center device OLU carries out ranging of the optical switch module OSM as is the case of ranging of the remote device ONU. The center device OLU transmits the difference between roundtrip time of the remote device ONU and roundtrip time of optical switch module OSM, which is the result of these rangings, to the optical switch module OSM, and the optical switch module OSM can obtain the contact start time of the upstream optical switching element by calculating the contact start time using the difference.

公开(公告)号：US5450440A

公开(公告)日：1995-09-12

申请号：US964135

申请日：1992-10-22

申请人： Motoo Nishihara ,  Takatoshi Kurano ,  Kenji Akutsu ,  Hiromi Ueda

发明人： Motoo Nishihara ,  Takatoshi Kurano ,  Kenji Akutsu ,  Hiromi Ueda

IPC分类号： H04L29/14 ,  H04L1/24 ,  H04M3/24 ,  H04B3/46 ,  H04B17/00 ,  H04Q1/20

CPC分类号： H04L1/24 ,  H04M3/244

摘要： In a monitor system in a digital communication apparatus including communication processing blocks on transmission paths of digital data, test data inserting units and data monitor units are arranged such that a monitor interval for the monitor operation in a block overlaps with a monitor period for the monitor operation between adjacent blocks in each processing block. As a result, there is no unmonitored interval in each processing block, thereby achieving a complete monitor operation.

摘要翻译： 在包括数字数据的传输路径上的通信处理块的数字通信装置的监视器系统中，布置测试数据插入单元和数据监视单元，使得块中的监视操作的监视间隔与监视器的监视周期重叠 在每个处理块中的相邻块之间的操作。 结果，在每个处理块中没有不间断的间隔，从而实现完整的监视操作。

公开(公告)号：US5408463A

公开(公告)日：1995-04-18

申请号：US192753

申请日：1994-02-07

申请人： Shahrukh S. Merchant ,  Mark A. Pashan ,  Hiromi Ueda ,  Hitoshi Uematsu

发明人： Shahrukh S. Merchant ,  Mark A. Pashan ,  Hiromi Ueda ,  Hitoshi Uematsu

IPC分类号： H04L7/08 ,  H04L12/56 ,  H04Q3/00 ,  H04Q3/52 ,  H04Q11/04 ,  H04J3/06

CPC分类号： H04L12/5601 ,  H04L49/106 ,  H04L49/1553 ,  H04L49/255 ,  H04Q11/0478 ,  H04L2012/5627 ,  H04L2012/5681

摘要： In a duplicate active-standby memory unit arrangement, a resynchronization initiation determination is made on a cell-interval-by-cell-interval basis based on the equality of cell contents of corresponding queues in the active and standby memory units. If an inequality of the cell contents of the corresponding queues in the active and standby memory units occurs during any cell interval, resynchronization may be initiated. In an exemplary embodiment of the invention, the lengths of data in corresponding queues, i.e., the number of cells stored in the corresponding queues, in the active and standby memory units are compared on a cell-interval-by-cell-interval basis. If the number of cells stored in any of the queues is different than the number of cells its corresponding queue in the other of the memory units during any cell interval, resynchronization of the memory units is initiated. In another embodiment of the invention, the outputs of corresponding queues in the active memory unit and the standby memory unit are compared on a cell-interval-by-cell-interval basis. If the results of the comparison indicates that any one or more of the queue outputs in one of the memory units is different from the output of the corresponding queue in the other memory unit, resynchronization is initiated. Robustness of the latter comparison algorithm is enchanced by restricting the comparisons to cell intervals during which the queue outputs in the active and standby memory units do not both include idle cells. Additionally, robustness of the resynchronization initiation is further enhanced by simultaneously employing both the comparison of cell length in the queues and the comparison of the queue output contents to detect when to initiate resynchronization.

摘要翻译： 在重复的活动备用存储器单元布置中，基于活动和备用存储器单元中相应队列的单元内容的相等性，以单元间隔间隔为单位进行重新同步启动确定。 如果活动和备用存储器单元中的相应队列的单元格内容的不等式在任何单元间隔期间发生，则可以启动重新同步。 在本发明的一个示例性实施例中，在单元间隔间隔的基础上比较在对应队列中的数据长度，即存储在相应队列中的活动和备用存储单元中的单元的数量。 如果任何队列中存储的单元的数量不同于在任何单元间隔期间的另一个存储器单元中其相应队列的单元数量，则启动存储器单元的再同步。 在本发明的另一个实施例中，在单元间隔间隔的基础上比较有源存储器单元和备用存储器单元中相应队列的输出。 如果比较结果表明存储单元之一中的任何一个或多个队列输出与其他存储器单元中的对应队列的输出不同，则重新同步被启动。 通过将活动和备用存储器单元中的队列输出不包括空闲单元的单元间隔进行比较来限制后者比较算法的鲁棒性。 此外，通过同时使用队列中的单元长度的比较和队列输出内容的比较来检测何时启动重新同步来进一步增强再同步启动的鲁棒性。

公开(公告)号：US5128939A

公开(公告)日：1992-07-07

申请号：US507506

申请日：1990-04-11

申请人： Masahiro Takatori ,  Yukio Nakano ,  Tadayuki Kanno ,  Hiromi Ueda

发明人： Masahiro Takatori ,  Yukio Nakano ,  Tadayuki Kanno ,  Hiromi Ueda

IPC分类号： H04J3/00 ,  H04J3/06 ,  H04L7/00

CPC分类号： H04J3/0623

摘要： Disclosed is a method and apparatus of phase-converting a frame, each frame containing a plurality of data, a frame synchronous signal arranged in a predetermined first relative phase position in the frame, and a pointer arranged in a predetermined second relative phase position and storing a value indicating a phase difference between the second relative phase position and the front position of the data in the frame, in which the following operations are carried out: consecutively receiving the frames; sequentially arranging a predetermined number of data among the plurality of data in the received frame in a transmission frame in accordance with a received order, and arranging the frame synchronous signal and the pointer in the received frame in the first relative phase position and the second relative phase position, the first relative phase position being independent to the second relative phase position, to form the tansmission frame; detecting a fourth relative phase position in the transmission frame, the fourth relative phase position storing a data same as a specific data arranged in a third relative phase positon in the received frame; obtaining a difference between the fourth relative phase position and the third relative phase position; and setting the difference between the value of the pointer in the received frame and the obtained phase difference as the value of the pointer in the transmission frame.

摘要翻译： 公开了一种帧相位转换的方法和装置，每帧包含多个数据，布置在帧中预定的第一相对相位位置的帧同步信号，以及布置在预定的第二相对相位位置的指针，并存储 指示执行以下操作的帧中的数据的第二相对位置与前端位置之间的相位差的值：连续接收帧; 根据接收到的顺序在传输帧中顺序排列接收到的帧中的多个数据中的预定数量的数据，并将帧同步信号和指针置于接收帧中的第一相对相位和第二相位 相位位置，第一相对相位位置独立于第二相对位置，以形成输出帧; 检测所述传输帧中的第四相对相位，所述第四相对相位位置存储与所述接收帧中的第三相位相位中布置的特定数据相同的数据; 获得所述第四相对位置与所述第三相对位置之间的差; 并且将接收到的帧中的指针的值与获得的相位差之间的差设置为发送帧中的指针的值。