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    • 33. 发明授权
    • Optical communication system and communication bandwidth control method
    • 光通信系统和通信带宽控制方法
    • US08457493B2
    • 2013-06-04
    • US12903931
    • 2010-10-13
    • Masahiko Mizutani
    • Masahiko Mizutani
    • H04J14/00
    • H04Q11/0067H04J3/0652H04J3/0682H04Q2011/0073
    • In the communication system, a master station is coupled to slave stations by a fiber network comprising a splitter and a reach extender, the master station includes a first bandwidth control section which determines, based on a request from each slave station, a first data amount of a signal transmitted in a first cycle, the reach extender includes: a distance measurement section which measures a distance or a time between the reach extender and each slave station; and a second bandwidth control section which determines a second data amount and transmission timing of a signal based on a request from each slave station and the first data amount, and each slave station transmits a signal with a data amount, which the first bandwidth control section determined based on a data amount and transmission timing determined in second cycles, to the master station in the first cycle.
    • 在通信系统中,主站通过包括分离器和扩展器的光纤网络耦合到从站,主站包括第一带宽控制部分,其基于来自每个从站的请求确定第一数据量 在第一周期中发送的信号,延伸器包括:距离测量部分,其测量到达延伸器与每个从站之间的距离或时间; 以及第二带宽控制部,其基于来自每个从站的请求和所述第一数据量来确定信号的第二数据量和发送定时,并且每个从站发送具有数据量的信号,所述第一带宽控制部 基于在第二周期中确定的数据量和发送定时确定的,在第一周期中向主站确定。
    • 34. 发明申请
    • TRANSFER APPARATUS, TRANSFER NETWORK SYSTEM, AND TRANSFER METHOD
    • 传输设备,传输网络系统和传输方法
    • US20120331043A1
    • 2012-12-27
    • US13527311
    • 2012-06-19
    • Shinya FUJIOKAYoshihiro AshiMasahiko Mizutani
    • Shinya FUJIOKAYoshihiro AshiMasahiko Mizutani
    • G06F15/16
    • H04L67/1095H04L67/26H04L67/325H04L69/28
    • 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.
    • 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。
    • 35. 发明授权
    • Optical access system
    • 光接入系统
    • US08290369B2
    • 2012-10-16
    • US12379281
    • 2009-02-18
    • Kenichi SakamotoYoshihiro AshiTohru KazawaRyosuke NishinoMasayuki TakaseMasahiko Mizutani
    • Kenichi SakamotoYoshihiro AshiTohru KazawaRyosuke NishinoMasayuki TakaseMasahiko Mizutani
    • H04B10/00
    • H04J3/1694H04J3/0682
    • 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.
    • 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。