公开(公告)号：US20100089194A1

公开(公告)日：2010-04-15

申请号：US12575597

申请日：2009-10-08

申请人： Masato SHIMODA ,  Masahiko Mizutani

发明人： Masato SHIMODA ,  Masahiko Mizutani

IPC分类号： F16H1/16 ,  F16C17/04 ,  F16C33/10

CPC分类号： F16C17/04 ,  B60N2/0232 ,  B60N2/067 ,  B60N2/929 ,  F16C33/201 ,  F16H1/16 ,  F16H57/021 ,  F16H2057/0213 ,  Y10T74/19828

摘要： A bearing assembly for a worm drive supporting the worm of the worm drive with washer-shaped thrust slide bearings and bush-shaped radial slide (sintered oil-containing bearings) bearings. The thrust slide bearings are made of a resin containing 95 to 99.9 wt % of polyetheretherketone resin, which is an aromatic polyetherketone resin. Wear of the thrust slide bearings is reduced and its durability is improved, thereby preventing vibration and noise of the worm drive as well as improving its durability.

摘要翻译： 用于蜗轮传动的轴承组件，其支撑具有垫圈形推力滑动轴承和衬套状径向滑块（含烧结含油轴承）轴承的蜗杆传动蜗杆。 推力滑动轴承由含有95〜99.9重量％的芳香聚醚酮树脂的聚醚醚酮树脂制成。 推力滑动轴承的磨损减小，其耐久性得到改善，从而防止蜗杆传动的振动和噪音以及提高其耐久性。

公开(公告)号：US08864231B2

公开(公告)日：2014-10-21

申请号：US12575597

申请日：2009-10-08

申请人： Masato Shimoda ,  Masahiko Mizutani

发明人： Masato Shimoda ,  Masahiko Mizutani

IPC分类号： F16H57/021 ,  B60N2/06 ,  B60N2/44 ,  B60N2/02 ,  F16C33/20 ,  F16C17/04 ,  B60N2/12 ,  F16H1/16

CPC分类号： F16C17/04 ,  B60N2/0232 ,  B60N2/067 ,  B60N2/929 ,  F16C33/201 ,  F16H1/16 ,  F16H57/021 ,  F16H2057/0213 ,  Y10T74/19828

摘要： A bearing assembly for a worm drive supporting the worm of the worm drive with washer-shaped thrust slide bearings and bush-shaped radial slide (sintered oil-containing bearings) bearings. The thrust slide bearings are made of a resin containing 95 to 99.9 wt % of polyetheretherketone resin, which is an aromatic polyetherketone resin. Wear of the thrust slide bearings is reduced and its durability is improved, thereby preventing vibration and noise of the worm drive as well as improving its durability.

摘要翻译： 用于蜗轮传动的轴承组件，其支撑具有垫圈形推力滑动轴承和衬套状径向滑块（含烧结含油轴承）轴承的蜗杆传动蜗杆。 推力滑动轴承由含有95〜99.9重量％的芳香聚醚酮树脂的聚醚醚酮树脂制成。 推力滑动轴承的磨损减小，其耐久性得到改善，从而防止蜗杆传动的振动和噪音以及提高其耐久性。

公开(公告)号：US08667058B2

公开(公告)日：2014-03-04

申请号：US13527311

申请日：2012-06-19

申请人： Shinya Fujioka ,  Yoshihiro Ashi ,  Masahiko Mizutani

发明人： Shinya Fujioka ,  Yoshihiro Ashi ,  Masahiko Mizutani

IPC分类号： G06F15/16

CPC分类号： H04L67/1095 ,  H04L67/26 ,  H04L67/325 ,  H04L69/28

摘要： When data is disclosed to a plurality of users by using a transfer network and a transfer apparatus, data disclosure time control which cannot be adversely affected by the users is performed to reduce the difference in data disclosure time among the users. A transfer network system includes a distribution server serving as a data-distribution-source transfer apparatus, and a network terminal connected to distribution-destination user equipment. The distribution server and the network terminal each have a time keeping function and a time synchronization function for matching the time of the time keeping function with a master clock. The distribution server sends in advance disclosure data and disclosure time to the network terminal. When the time of the time keeping function of the network terminal matches the disclosure time, the network terminal sends the disclosure data to the user equipment.

摘要翻译： 当通过使用传送网络和传送装置向多个用户公开数据时，执行不受用户不利影响的数据公开时间控制，以减少用户之间的数据公开时间的差异。 传送网络系统包括用作数据分发源传送装置的分发服务器和连接到分发目的地用户设备的网络终端。 分发服务器和网络终端均具有时间保持功能和时间同步功能，用于将时间保持功能的时间与主时钟相匹配。 分发服务器预先向网络终端发送披露数据和公开时间。 当网络终端的时间保持功能与公布时间匹配时，网络终端向用户设备发送公开数据。

公开(公告)号：US08554075B2

公开(公告)日：2013-10-08

申请号：US13144253

申请日：2009-01-13

申请人： Masahiko Mizutani ,  Yusuke Yajima ,  Nobuyuki Yamamoto ,  Yoshihiro Ashi

发明人： Masahiko Mizutani ,  Yusuke Yajima ,  Nobuyuki Yamamoto ,  Yoshihiro Ashi

IPC分类号： H04J14/00 ,  H04J14/02

CPC分类号： H04J14/0227 ,  H04L43/0817 ,  H04L43/0852 ,  H04L45/22 ,  H04L45/28 ,  H04Q11/0067 ,  H04Q2011/0081

摘要： Switching process at the occurrence of a path trouble is performed more quickly to reduce the number of packet discards during a traffic transition from a currently used system path to a standby system path within a section to be protected. An OLT (210-W) refers to the DBA information of a PON section and, if receiving no CCM frame at a timing at which the same should be received, then determines that some trouble has occurred on the path (S801) and transmits, to an OAM-compliant NE (200-Z), an application-for-switching frame (1501) to notify the OAM-compliant NE (200-Z) of the abnormal condition. The OAM-compliant NE (200-Z) monitors the occurrence of the trouble within the PON section nearly in real time, starts a switching process (S802) and generates and transmits a standby-system delivery request (321) (S302, S803). An OAM-compliant NE (200-A) switches the communication path to the standby-system passing through an OLT (210-P).

摘要翻译： 在发生路径故障时的切换过程被执行得更快以减少从当前使用的系统路径到要保护的区段内的备用系统路径的业务转换期间的丢弃丢弃数量。 OLT（210-W）是指PON部分的DBA信息，并且如果在接收相同的定时不接收到CCM帧，则确定在路径上发生了一些故障（S801） 到符合OAM的NE（200-Z），用于切换交换帧（1501）的OAM兼容NE（200-Z）通知异常状态。 符合OAM标准的NE（200-Z）几乎实时监控PON部分内的故障发生，开始切换处理（S802），生成并发送备用系统传送请求（321）（S302，S803） 。 符合OAM标准的网元（200-A）将通信路径切换到通过OLT（210-P）的备用系统。

公开(公告)号：US08249458B2

公开(公告)日：2012-08-21

申请号：US12638383

申请日：2009-12-15

申请人： Masahiko Mizutani ,  Yusuke Yajima

发明人： Masahiko Mizutani ,  Yusuke Yajima

IPC分类号： H04J14/08

CPC分类号： H04J3/0682 ,  H04J3/0652 ,  H04Q11/0067 ,  H04Q2011/0081 ,  H04Q2011/009

摘要： An optical communication system has a master station and a plurality of slave stations connected thereto via an optical fiber network, which is provided with an optical splitter and a relay unit which relays signals transmitted/received between the master station and the plurality of slave stations. The master station includes a first controller for performing ranging between the master station and the relay unit, and the relay unit includes a second controller for performing ranging between the relay unit and the plurality of slave stations. The master station determines, on the basis of the results of ranging performed by the first and second controllers as well as reports from the slave stations, timings for the slave stations to transmit signals to the master station, and receives signals multiplexed through the optical fiber network from the slave stations.

摘要翻译： 光通信系统具有主站和经由光纤网络连接到其上的多个从站，光纤网络设有光分路器和中继单元，其中继在主站与多个从站之间发送/接收的信号。 主站包括用于在主站和中继单元之间进行测距的第一控制器，并且中继单元包括用于执行中继单元与多个从站之间的测距的第二控制器。 主站基于由第一和第二控制器执行的测距结果以及从站的报告，确定从站向主站发送信号的定时，并且接收通过光纤复用的信号 从站的网络。

公开(公告)号：US08095004B2

公开(公告)日：2012-01-10

申请号：US12359413

申请日：2009-01-26

申请人： Masahiko Mizutani ,  Yusuke Yajima

发明人： Masahiko Mizutani ,  Yusuke Yajima

IPC分类号： H04B10/08 ,  H04B10/00

CPC分类号： H04J3/0682 ,  H04J14/0282

摘要： In a passive optical network system, in order that by measuring a transmission distance and a transmission time between an OLT and an ONU in operation of the system, if the distance or the time is short, communication is conducted at a high transmission speed to increase a capacity of user; if the distance or the time is long, communication is conducted at a low transmission speed to increase the capacity of user communicating in a state in which a predetermined quality is secured, a main station includes a signal communication circuit to communicate with subsidiary stations at a first or second transmission speed and a controller to measure a transmission distance or a transmission time between the main station and each subsidiary station. Based on a result of the measurement, the controller selects a transmission speed for communication with the subsidiary station.

摘要翻译： 在无源光网络系统中，为了通过在系统的操作中测量OLT与ONU之间的传输距离和传输时间，如果距离或时间短，则以高传输速度进行通信以增加 用户容量; 如果距离或时间长，则以低传输速度进行通信，以在确保预定质量的状态下增加用户通信的容量，主站包括信号通信电路，以在子站 第一或第二传输速度，以及用于测量主站和每个辅助站之间的传输距离或传输时间的控制器。 基于测量结果，控制器选择用于与子站通信的传输速度。

公开(公告)号：US07936991B2

公开(公告)日：2011-05-03

申请号：US12068829

申请日：2008-02-12

申请人： Toshiki Sugawara ,  Masahiko Mizutani ,  Hiroki Ikeda ,  Kenichi Sakamoto

发明人： Toshiki Sugawara ,  Masahiko Mizutani ,  Hiroki Ikeda ,  Kenichi Sakamoto

IPC分类号： H04B10/20 ,  H04J14/00

CPC分类号： H04L7/0075 ,  H04J3/1694

摘要： An optical access communication apparatus and an optical access communication system for the coexistence of two wideband PON systems without using an expensive optical device or module. A low-speed PON and a high-speed PON have a same upstream wavelength, and an OLT receives optical signals by a same optical receiver in the two systems, converts the optical signals into electric signals, amplifies the electric signals, branches the amplified electric signals, and processes the branched signals by clock and data recovery sections of bit rates corresponding to the two PON systems, thereby achieving an optical communication apparatus and an optical communication system for constructing a simple and low-cost triple-play service system of excellent transmission quality.

摘要翻译： 一种用于两个宽带PON系统共存而不使用昂贵的光学设备或模块的光接入通信设备和光接入通信系统。 低速PON和高速PON具有相同的上行波长，并且OLT在两个系统中通过相同的光接收器接收光信号，将光信号转换为电信号，放大电信号，将放大的电 信号，并通过对应于两个PON系统的比特率的时钟和数据恢复部分对分支信号进行处理，从而实现用于构建出色传输的简单且低成本的三重播放业务系统的光通信装置和光通信系统 质量。

公开(公告)号：US07773880B2

公开(公告)日：2010-08-10

申请号：US12076897

申请日：2008-03-25

申请人： Kenichi Sakamoto ,  Yoshihiro Ashi ,  Tohru Kazawa ,  Ryosuke Nishino ,  Masayuki Takase ,  Masahiko Mizutani

发明人： Kenichi Sakamoto ,  Yoshihiro Ashi ,  Tohru Kazawa ,  Ryosuke Nishino ,  Masayuki Takase ,  Masahiko Mizutani

IPC分类号： H04B10/00

CPC分类号： H04J3/1694 ,  H04J3/0682

摘要： An optical access system capable of avoiding cutoffs or interruption in the periodically transmitted signals that occur during the ranging time is provided. A first method to avoid signal cutoffs is to stop periodic transmit signals at the transmitter during the ranging period, and transmit all the periodic transmit signals together when the ranging ends, and buffer the signals at the receiver to prepare for ranging. A second method is to fix definite periods ahead of time for performing ranging, then cluster the multiple periodic transmit signals together in sets at the transmitter and send them, and then disassemble those sets back into signals at the receiver. The transmitting and receiving is then controlled so that the transmit periods do not overlap with the ranging periods. In this way an optical access system is provided that can send and receive signals requiring periodic transmissions without interruption even during ranging operation.

摘要翻译： 提供一种能够避免在测距时间期间发生的周期性发射信号中的截断或中断的光接入系统。 避免信号截止的第一种方法是在测距周期期间在发射机处停止周期性发射信号，并且在测距结束时将所有周期性发射信号传输到一起，并且在接收机处缓冲信号以准备测距。 第二种方法是提前确定一段时间进行测距，然后将多个周期性发射信号集合在一起，并将其发送给发射机，然后将它们分组回接收机的信号。 然后控制发送和接收，使得发送周期不与测距周期重叠。 以这种方式，提供光接入系统，即使在测距操作期间也可以发送和接收需要周期性传输的信号而不中断。

公开(公告)号：US20100086304A1

公开(公告)日：2010-04-08

申请号：US12444280

申请日：2006-10-06

申请人： Masahiko Mizutani ,  Yoshihiro Ashi ,  Shinya Sasaki ,  Tohru Kazawa

发明人： Masahiko Mizutani ,  Yoshihiro Ashi ,  Shinya Sasaki ,  Tohru Kazawa

IPC分类号： H04J14/00 ,  H04J14/02 ,  H04B10/00

CPC分类号： H04J14/0282 ,  H04B1/707

摘要： A transmitting apparatus includes a plurality of code spreaders different in spreading code, a reception processing unit that selectively distributes transmission data to the plurality of code spreaders, a plurality of optical transmitters each of which that transmit a code-spread signal to an optical fiber as a CDMA optical signal of a carrier wavelength different from that of the other optical transmitters, and a signal multiplexing unit that selectively supplies outputs of the plurality of code spreaders to the plurality of optical transmitters, and a receiving apparatus includes an optical receiver that receives a wavelength-division-multiplexed CDMA optical signal from the optical fiber, and a plurality of despreaders connected to the optical receiver and different in spreading code, wherein each of the despreaders reproduces a CDMA signal corresponding to its spreading code from an output signal of the optical receiver.

摘要翻译： 发送装置包括扩展码不同的多个码扩展器，选择性地将发送数据分配给多个代码扩展器的接收处理单元，多个光发送器，每个光发送器将码扩展信号发送到光纤，如 载波波长不同于其他光发射机的CDMA光信号，以及选择性地将多个码扩展器的输出提供给多个光发射机的信号复用单元，以及接收装置，包括接收 来自光纤的波分复用CDMA光信号和连接到光接收机并且扩展码不同的多个解扩器，其中每个解扩器从光学器件的输出信号再现对应于其扩展码的CDMA信号 接收器。

公开(公告)号：US20100021161A1

公开(公告)日：2010-01-28

申请号：US12572695

申请日：2009-10-02

申请人： Hideki Endo ,  Masahiko Mizutani ,  Masayuki Takase ,  Kenichi Sakamoto ,  Yoshihiro Ashi ,  Takayuki Kanno ,  Nobuyuki YAMAMOTO

发明人： Hideki Endo ,  Masahiko Mizutani ,  Masayuki Takase ,  Kenichi Sakamoto ,  Yoshihiro Ashi ,  Takayuki Kanno ,  Nobuyuki YAMAMOTO

IPC分类号： H04J14/00 ,  H04L12/24

CPC分类号： H04Q11/0067 ,  H04L47/115 ,  H04L47/263 ,  H04Q11/0071 ,  H04Q2011/0064

摘要： Disclosed herewith is a PON system and a bandwidth controlling method capable of controlling congestion with use of an upstream bandwidth in a PON section efficiently when congestion occurs in a gateway (GW) connected to an OLT. An OLT connected to a plurality of ONUs through a passive optical network (PON) and to a gateway (GW) through a communication line, when receiving a congestion occurrence notice indicating a congestion occurred output number from a GW, identifies the identifier of the ONU that is using a GW output line having the congestion output port number and shifts the bandwidth controlling of the PON section in a normal mode for allocating a bandwidth to each ONU normally to that in a bandwidth suppression mode for allocating a congestion time allowable bandwidth that is less than the current bandwidth to the ONU having the identified ONU identifier and a bandwidth to each of other ONUs according to its transmission queue length.

摘要翻译： 这里公开了一种PON系统和带宽控制方法，其能够在连接到OLT的网关（GW）中发生拥塞时有效地控制在PON部分中使用上行带宽的拥塞。 当从GW接收到指示发生拥塞发生拥塞的拥塞发生通知时，通过无线光网络（PON）连接到多个ONU并通过通信线路连接到网关（GW），识别ONU的标识符 正在使用具有拥塞输出端口号的GW输出线，并且以正常模式移动PON部分的带宽控制，以将每个ONU的带宽正常分配给带宽抑制模式中的带宽，以分配拥塞时间允许带宽 小于根据其传输队列长度具有所识别的ONU标识符的ONU的当前带宽和对于每个其他ONU的带宽。