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1. 发明申请

US20070147841A1 OPTICAL ADD/DROP DEVICE 有权
标题翻译：光学添加/删除设备
公开(公告)号：US20070147841A1
公开(公告)日：2007-06-28
申请号：US11681463
申请日：2007-03-02
申请人： Yutaka Takita , Yutaka Kai , Yasuhiko Aoki , Kyosuke Sone
发明人： Yutaka Takita , Yutaka Kai , Yasuhiko Aoki , Kyosuke Sone
IPC分类号： H04J14/02
CPC分类号： H04J14/028 , G02F2203/585 , H04J14/0204 , H04J14/0206 , H04J14/021 , H04J14/0212 , H04J14/0221 , H04J14/0283 , H04J14/029 , H04J14/0294
摘要： Optical add/drop nodes are used in a network having a pair of optical transmission paths for transmitting optical signals in opposite directions to each other. Each add/drop node comprises a variable split ratio optical coupler for splitting an optical signal output from a transmitter. The split ratio of the variable split ratio optical coupler is set such that the optical power levels of the signals added through the respective optical add/drop nodes are equal to one another respectively on the pair of optical transmission paths.
摘要翻译：光分插节点用于具有一对光传输路径的网络中，用于将光信号彼此相反的方向传输。每个添加/分出节点包括用于分离从发射机输出的光信号的可变分光比光耦合器。可变分频比光耦合器的分频比被设置为使得通过相应的光分插节点添加的信号的光功率电平分别在一对光传输路径上彼此相等。

2. 发明授权

US08032028B2 Optical add/drop device 有权
标题翻译：光分插装置
公开(公告)号：US08032028B2
公开(公告)日：2011-10-04
申请号：US11681463
申请日：2007-03-02
申请人： Yutaka Takita , Yutaka Kai , Yasuhiko Aoki , Kyosuke Sone
发明人： Yutaka Takita , Yutaka Kai , Yasuhiko Aoki , Kyosuke Sone
IPC分类号： H04J14/02
CPC分类号： H04J14/028 , G02F2203/585 , H04J14/0204 , H04J14/0206 , H04J14/021 , H04J14/0212 , H04J14/0221 , H04J14/0283 , H04J14/029 , H04J14/0294
摘要： Optical add/drop nodes are used in a network having a pair of optical transmission paths for transmitting optical signals in opposite directions to each other. Each add/drop node comprises a variable split ratio optical coupler for splitting an optical signal output from a transmitter. The split ratio of the variable split ratio optical coupler is set such that the optical power levels of the signals added through the respective optical add/drop nodes are equal to one another respectively on the pair of optical transmission paths.
摘要翻译：光分插节点用于具有一对光传输路径的网络中，用于将光信号彼此相反的方向传输。每个添加/分出节点包括用于分离从发射机输出的光信号的可变分光比光耦合器。可变分频比光耦合器的分频比被设置为使得通过相应的光分插节点添加的信号的光功率电平分别在一对光传输路径上彼此相等。

3. 发明申请

US20070223921A1 OPTICAL SWITCH SYSTEM 有权
标题翻译：光开关系统
公开(公告)号：US20070223921A1
公开(公告)日：2007-09-27
申请号：US11536326
申请日：2006-09-28
申请人： Kyosuke Sone , Yasuhiko Aoki
发明人： Kyosuke Sone , Yasuhiko Aoki
IPC分类号： H04J14/00
CPC分类号： H04Q11/0005 , H04Q11/0066 , H04Q2011/0013 , H04Q2011/0015 , H04Q2011/0024 , H04Q2011/0039 , H04Q2011/0049
摘要： Each of a plurality of semiconductor optical amplifiers operates as an optical gate switch and selects an optical signal indicated by a gate control signal from an optical gate switch control unit. A plurality of photodetectors monitor the power of an optical signal input through a corresponding input port. A VOA control unit calculates an amount of attenuation corresponding to each input port based on the power of each optical signal. A variable optical attenuator attenuates the selected optical signal according to the calculated amount of attenuation in synchronization with the gate control signal.
摘要翻译：多个半导体光放大器中的每一个用作光栅开关，并且从光栅开关控制单元选择由栅极控制信号指示的光信号。多个光电检测器监视通过相应的输入端口输入的光信号的功率。 VOA控制单元基于每个光信号的功率来计算与每个输入端口相对应的衰减量。可变光衰减器根据计算的衰减量与门控制信号同步地衰减所选择的光信号。

4. 发明申请

US20080159748A1 Optical transmission system 有权
标题翻译：光传输系统
公开(公告)号：US20080159748A1
公开(公告)日：2008-07-03
申请号：US11984426
申请日：2007-11-16
申请人： Kyosuke Sone , Yasuhiko Aoki
发明人： Kyosuke Sone , Yasuhiko Aoki
IPC分类号： H04B10/00
CPC分类号： H04Q11/0005 , H04Q11/0066 , H04Q2011/0039 , H04Q2011/0045
摘要： An optical transmission system capable of time difference correction without increasing guard times, thereby improving optical packet transmission efficiency. An optical switching processor sets identical switching timing for all input ports thereof such that optical signals input from the input ports are switched at the same timing. During initialization, a time difference corrector transmits an optical dummy packet to an optical switch node, and detects synchroneity of the optical dummy packet returned thereto after being switched by the optical switch node. If synchronization error is detected, the time difference corrector adjusts the output timing of the optical dummy packet so that the timing of arrival of the optical dummy packet at the optical switching processor may coincide with the switching timing of the optical switching processor, to thereby correct the time difference between the switching timing and the arrival timing.
摘要翻译：一种光传输系统，能够在不增加保护时间的情况下进行时差校正，从而提高光分组传输效率。光切换处理器为其所有输入端口设置相同的切换定时，使得从输入端口输入的光信号在相同的定时被切换。在初始化期间，时差校正器向光交换节点发送光学虚拟分组，并检测在由光交换节点切换之后返回到其上的光学虚拟分组的同步性。如果检测到同步错误，则时差校正器调整光学虚拟数据包的输出定时，使得光学开关处理器处的光学虚拟数据包的到达时间与光交换处理器的切换定时一致，从而校正切换定时与到达时刻之间的时间差。

5. 发明授权

US08019228B2 Optical switching transmission system with timing correction 有权
标题翻译：具有定时校正的光交换传输系统
公开(公告)号：US08019228B2
公开(公告)日：2011-09-13
申请号：US11984426
申请日：2007-11-16
申请人： Kyosuke Sone , Yasuhiko Aoki
发明人： Kyosuke Sone , Yasuhiko Aoki
IPC分类号： H04B10/00 , G02F1/00 , G02F2/00 , H01S3/00 , H04J14/00 , H04J3/06 , H04J14/02
CPC分类号： H04Q11/0005 , H04Q11/0066 , H04Q2011/0039 , H04Q2011/0045
摘要： An optical transmission system capable of time difference correction without increasing guard times, thereby improving optical packet transmission efficiency. An optical switching processor sets identical switching timing for input ports thereof such that optical signals input from the input ports are switched at the same timing. During initialization, a time difference corrector transmits an optical dummy packet to an optical switch node, and detects synchroneity of the optical dummy packet returned thereto after being switched by the optical switch node. If synchronization error is detected, the time difference corrector adjusts the output timing of the optical dummy packet so that the timing of arrival of the optical dummy packet at the optical switching processor may coincide with the switching timing of the optical switching processor, to thereby correct the time difference between the switching timing and the arrival timing.
摘要翻译：一种光传输系统，能够在不增加保护时间的情况下进行时差校正，从而提高光分组传输效率。光切换处理器为其输入端口设置相同的切换定时，使得从输入端口输入的光信号在相同的定时被切换。在初始化期间，时差校正器向光交换节点发送光学虚拟分组，并检测在由光交换节点切换之后返回到其上的光学虚拟分组的同步性。如果检测到同步错误，则时差校正器调整光学虚拟数据包的输出定时，使得光学开关处理器处的光学虚拟数据包的到达时间与光交换处理器的切换定时一致，从而校正切换定时与到达时刻之间的时间差。

6. 发明授权

US07672585B2 Optical switch system 有权
标题翻译：光开关系统
公开(公告)号：US07672585B2
公开(公告)日：2010-03-02
申请号：US11536326
申请日：2006-09-28
申请人： Kyosuke Sone , Yasuhiko Aoki
发明人： Kyosuke Sone , Yasuhiko Aoki
IPC分类号： H04J14/00
CPC分类号： H04Q11/0005 , H04Q11/0066 , H04Q2011/0013 , H04Q2011/0015 , H04Q2011/0024 , H04Q2011/0039 , H04Q2011/0049
摘要： Each of a plurality of semiconductor optical amplifiers operates as an optical gate switch and selects an optical signal indicated by a gate control signal from an optical gate switch control unit. A plurality of photodetectors monitor the power of an optical signal input through a corresponding input port. A VOA control unit calculates an amount of attenuation corresponding to each input port based on the power of each optical signal. A variable optical attenuator attenuates the selected optical signal according to the calculated amount of attenuation in synchronization with the gate control signal.
摘要翻译：多个半导体光放大器中的每一个用作光栅开关，并且从光栅开关控制单元选择由栅极控制信号指示的光信号。多个光电检测器监视通过相应的输入端口输入的光信号的功率。 VOA控制单元基于每个光信号的功率来计算与每个输入端口相对应的衰减量。可变光衰减器根据计算的衰减量与门控制信号同步地衰减所选择的光信号。

7. 发明授权

US08170416B2 Optical switching device 有权
标题翻译：光开关器件
公开(公告)号：US08170416B2
公开(公告)日：2012-05-01
申请号：US12076856
申请日：2008-03-24
申请人： Yutaka Kai , Yasuhiko Aoki
发明人： Yutaka Kai , Yasuhiko Aoki
IPC分类号： H04J14/00
CPC分类号： H04Q11/0005 , H04J14/0227 , H04J14/0246 , H04J14/025 , H04Q2011/0011 , H04Q2011/0013 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/0039 , H04Q2011/005 , H04Q2011/0052
摘要： An optical switching device the size and costs of which are reduced by decreasing the number of switching elements and which can flexibly accommodate the expansion of the number of ports. An optical demultiplexing section has 2n (n=1, 2, 3, . . . ) input ports and 2m (m>n) output ports and includes demultiplexing couplers for demultiplexing input optical packets. A switch fabric section includes optical gate elements for switching optical packets outputted from the optical demultiplexing section by switch drive control. An optical multiplexing section has 2m input ports and 2n output ports and includes multiplexing couplers for multiplexing the optical packets which pass through the optical gate elements. A scheduler exercises control over an entire optical packet switching process.
摘要翻译：通过减少开关元件的数量并且可以灵活地适应端口数量的扩展来减小尺寸和成本的光开关装置。光解复用部分具有2n（n = 1,2,3，...）输入端口和2m（m> n）个输出端口，并且包括用于解复用输入光分组的解复用耦合器。交换结构部分包括用于通过开关驱动控制来切换从光解复用部分输出的光分组的光栅元件。光复用部分具有2m输入端口和2n个输出端口，并且包括用于复用通过光栅元件的光分组的多路耦合器。调度器对整个光分组交换过程进行控制。

8. 发明申请

US20090297162A1 Optical communication base station, optical signal conversion apparatus, and optical signal conversion method 有权
标题翻译：光通信基站，光信号转换装置和光信号转换方法
公开(公告)号：US20090297162A1
公开(公告)日：2009-12-03
申请号：US12461267
申请日：2009-08-05
申请人： Yutaka Kai , Yasuhiko Aoki
发明人： Yutaka Kai , Yasuhiko Aoki
IPC分类号： H04B10/02
CPC分类号： H04J3/1694 , H04B10/272 , H04J3/22 , H04Q11/0067 , H04Q2011/0064
摘要： An optical communication base station which receives an upstream optical signal having an upstream bit rate specific to each one of a plurality of lower order communication units from a corresponding one of the plurality of lower order communication units, and which transmits a downstream optical signal having a downstream bit rate specific to each one of the plurality of lower order communication units to a designated one of the plurality of lower order communication units, includes; a first optical signal conversion unit which changes the bit rate of the upstream optical signal and thereby converts the upstream optical signal into a fixed bit-rate inter-station optical signal; and a second optical signal conversion unit which converts the inter-station optical signal into the downstream optical signal by changing the bit rate of the inter-station optical signal according to the designated one of the plurality of lower order communication units.
摘要翻译：一种光通信基站，其从多个下位通信单元中的相应一个接收具有对多个低阶通信单元中的每一个特定的上行比特率的上行光信号，并且发送具有所述多个低阶通信单元中的每一个的特定下行比特率包括：第一光信号转换单元，其改变上游光信号的比特率，从而将上游光信号转换为固定比特率站间光信号; 以及第二光信号转换单元，通过根据多个低阶通信单元中指定的一个来改变站间光信号的比特率，将站间光信号转换成下行光信号。

9. 发明申请

US20090185804A1 Optical access network system 审中-公开
标题翻译：光接入网系统
公开(公告)号：US20090185804A1
公开(公告)日：2009-07-23
申请号：US12292337
申请日：2008-11-17
申请人： Yutaka Kai , Yasuhiko Aoki
发明人： Yutaka Kai , Yasuhiko Aoki
IPC分类号： H04J14/00
CPC分类号： H04J14/0282 , H04J14/0226 , H04J14/0227 , H04J14/0232 , H04J14/0238 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0257
摘要： In an optical access network system in which a relay station receives a wavelength multiplexed and time-division multiplexed optical signal (WDM optical signal) from an optical network, and the relay station transmits optical signals having specified wavelengths to subscriber units, the relay station demultiplexes the WDM optical signal into a plurality of groups with one group having a plurality of optical signals having a fixed wavelength interval between signals, then divides the optical signals of each group into k branches (k is the number of subscriber units) and inputs the signals to optical switches, and by turning ON/OFF the optical switches such that they are spaced in time, inputs the branched optical signals to the respective specified subscribers units.
摘要翻译：在中继站从光网络接收波分复用光时分复用光信号（WDM光信号）的光接入网系统中，中继站向用户单元发送具有特定波长的光信号的情况下，中继站多路复用将WDM光信号转换成具有一组具有多个信号之间的固定波长间隔的多个光信号的多个组，然后将每个组的光信号划分为k个分支（k是用户单元的数量），并输入信号并且通过将光开关的ON / OFF时间间隔开来，将分支的光信号输入到各个指定的订户单元。

10. 发明授权

US07462812B2 Optical switch apparatus and optical switching system 有权
标题翻译：光开关装置和光开关系统
公开(公告)号：US07462812B2
公开(公告)日：2008-12-09
申请号：US12051425
申请日：2008-03-19
申请人： Yutaka Kai , Yasuhiko Aoki , Eric Gouardes , Yoshiaki Nakano
发明人： Yutaka Kai , Yasuhiko Aoki , Eric Gouardes , Yoshiaki Nakano
IPC分类号： H01J40/14 , H04J14/00
CPC分类号： H04Q11/0005 , H04Q2011/002 , H04Q2011/0039 , H04Q2011/0049
摘要： An optical switching system having a transmission node. The transmission node includes a bit pattern processing unit for processing a bit pattern of transmitted data to stabilize optical power of a frame signal light to be monitored and a frame signal light producing unit for producing frame signal light to be transmitted on the basis of the bit pattern processed by the bit pattern processing unit.
摘要翻译：一种具有传输节点的光交换系统。发送节点包括：位图案处理单元，用于处理发送数据的位模式以稳定要监视的帧信号光的光功率;以及帧信号发光单元，用于根据该位产生要发送的帧信号光图案处理单元处理的图案。

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