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1. 发明授权

US09231725B2 Passive optical network optical network terminal apparatus and configuration method 有权
标题翻译：无源光网络光网络终端设备及配置方法
公开(公告)号：US09231725B2
公开(公告)日：2016-01-05
申请号：US14112789
申请日：2011-04-20
申请人： Luca Giorgi , Fabio Cavaliere
发明人： Luca Giorgi , Fabio Cavaliere
IPC分类号： H04B10/00 , H04J14/02
CPC分类号： H04J14/0227 , H04J14/0246 , H04J14/025 , H04J14/0258 , H04J14/0267 , H04J14/0269 , H04J14/0282 , H04J14/0293
摘要： A method of configuring an optical network terminal, ONT, of a wavelength division multiplexed passive optical network, WDM PON. Sequentially setting a transmission wavelength of a tunable optical filter at the ONT to one or more wavelengths of a pre-selected plurality of transmission wavelengths until a wavelength is identified for which no downstream optical signal from an optical line terminal of the WDM PON is detected. Determining whether a transmitter operable at said identified transmission wavelength is present at the OLT and is available to be assigned to communicate with the ONT. If a transmitter is determined to be present and available, maintaining the transmission wavelength of the tunable optical filter at transmission wavelength and assigning the ONT to the OLT as a subscriber at said identified transmission wavelength. If a transmitter is determined to be one of not present and not available, recommencing the method.
摘要翻译：一种配置波分复用无源光网络WDM PON的光网络终端ONT的方法。顺序地将ONT处的可调谐滤光器的透射波长设置为预先选择的多个透射波长的一个或多个波长，直到识别出没有检测到来自WDM PON的光线路终端的下行光信号的波长。确定在所述识别的传输波长处可操作的发射机是否存在于OLT处，并且可被分配用于与ONT通信。如果发射机被确定为存在并且可用，则保持可调光滤波器的传输波长处于传输波长并且以所述识别的传输波长将ONT分配给OLT作为订户。如果发射机被确定为不存在并且不可用，则重新启动该方法。

2. 发明申请

US20150222385A1 TRANSPONDER FOR WDM RING NETWORK 审中-公开
标题翻译：波分复用网络
公开(公告)号：US20150222385A1
公开(公告)日：2015-08-06
申请号：US14416623
申请日：2012-07-26
申请人： Filippo Ponzini , Luca Giorgi
发明人： Filippo Ponzini , Luca Giorgi
IPC分类号： H04J14/02 , H04B10/572 , H04B10/275
CPC分类号： H04J14/0202 , H04B10/275 , H04B10/572 , H04J14/0295
摘要： For a WDM ring network, a node has an optical add drop part and a transponder having a wavelength tunable transmitter for sending a selectable one of the wavelengths in a selectable direction around the ring to a destination node. There is a controller configured to select the wavelength to be sent by the wavelength tunable transmitter and to change the direction of sending around the ring, in response to a detection of a fault in sending in one of the directions. By making the transponder colourless and yet able to select direction, a simple protection switching capability can be added to an existing low cost WDM ring network having passive optical filters. This can be achieved without the need for a reconfigurable optical add drop multiplexer and associated control plane.
摘要翻译：对于WDM环形网络，节点具有光学添加点部分和具有波长可调谐发射器的应答器，用于沿环绕可选择的方向将可选择的一个波长发送到目的地节点。控制器被配置为响应于检测到沿其中一个方向发送的故障，选择要由波长可调谐发射机发送的波长并改变环路上的发送方向。通过使应答器无色并且能够选择方向，可以将简单的保护切换能力添加到具有无源光学滤波器的现有低成本WDM环形网络中。这可以在不需要可重新配置的光分插复用器和相关控制平面的情况下实现。

3. 发明申请

US20130202291A1 DETERMINING ASYMMETRIES IN A COMMUNICATION NETWORK 有权
标题翻译：确定通信网络中的不对称性
公开(公告)号：US20130202291A1
公开(公告)日：2013-08-08
申请号：US13879147
申请日：2011-09-13
申请人： Fabio Cavaliere , Giulio Bottari , Luca Giorgi , Stefano Ruffini
发明人： Fabio Cavaliere , Giulio Bottari , Luca Giorgi , Stefano Ruffini
IPC分类号： H04B10/08
CPC分类号： H04L43/0864 , H04B10/07 , H04B10/0775 , H04B10/0795 , H04B2210/072 , H04B2210/078 , H04J3/0667 , H04J14/0201 , H04J14/021 , H04J14/0226 , H04J14/0267 , H04J14/0273 , H04J14/0275 , H04Q11/0066 , H04Q2011/0083
摘要： A method for measuring asymmetry in propagation delay of first and second links which connect a first node to a second node of a communication network. The method comprises measuring (101) a round trip delay of the first link. The round trip delay can be measured by transmitting (102) a test signal from the first node to the second node over the first link and receiving a reply to the test signal from the second node over the first link. The method further comprises measuring (105) a round trip delay of the second link. The round trip delay can be measured by transmitting (106) a test signal to the second node over the second link and receiving a reply to the test signal from the second node over the second link. A difference in the propagation delay of the first link with respect to the second link is determined (109) using the measured round trip delays of the first link and the second link.
摘要翻译：一种用于测量将第一节点连接到通信网络的第二节点的第一和第二链路的传播延迟不对称的方法。该方法包括测量（101）第一链路的往返延迟。可以通过在第一链路上将测试信号从第一节点发送（102）到第二节点（102）并通过第一链路接收来自第二节点的测试信号的答复来测量往返延迟。该方法还包括测量（105）第二链路的往返延迟。可以通过在第二链路上向第二节点发送（106）测试信号（106）并通过第二链路从第二节点接收对测试信号的回复来测量往返延迟。使用所测量的第一链路和第二链路的往返延迟来确定第一链路相对于第二链路的传播延迟的差异（109）。

4. 发明申请

US20120321316A1 REFLECTIVE OPTICAL NETWORKS 有权
标题翻译：反射光网络
公开(公告)号：US20120321316A1
公开(公告)日：2012-12-20
申请号：US13382762
申请日：2009-07-23
申请人： Marco Presi , Fabio Cavaliere , Andrea Chiuchiarelli , Pallab Choudhury , Ernesto Ciaramella , Giampiero Contestabile , Luca Giorgi , Roberto Proietti
发明人： Marco Presi , Fabio Cavaliere , Andrea Chiuchiarelli , Pallab Choudhury , Ernesto Ciaramella , Giampiero Contestabile , Luca Giorgi , Roberto Proietti
IPC分类号： H04B10/26
CPC分类号： H04B10/2587 , H04J14/0282 , H04J2014/0253
摘要： A reflective optical network (10) comprises an optical network unit (14) and an optical receiver (22). The optical network unit (14) comprises a reflective optical modulator (16) arranged to receive a seed optical signal, and a transmitter controller (18) arranged to receive a data signal (20) and to control the modulator (16) to apply the data signal (20) to the seed optical signal, to form an optical data signal. The transmitter controller (18) is arranged to process the data signal (20) to substantially prevent the optical data signal comprising spectral components at frequencies lower than a cut-off frequency, being the frequency at which a power spectral density of said optical data signal is lower than a peak power spectral density of said optical signal by a cut-off power value. The optical receiver (22) comprises an electrical domain high pass filter (26) having a cut-off frequency higher than a linewidth of the seed optical signal.
摘要翻译：反射光网络（10）包括光网络单元（14）和光接收器（22）。光网络单元（14）包括布置成接收种子光信号的反射光调制器（16）和布置成接收数据信号（20）并且控制调制器（16）应用数据信号（20）到种子光信号，以形成光数据信号。发射机控制器（18）被布置成处理数据信号（20）以基本上防止包括频率低于截止频率的频谱分量的光数据信号，其是所述光数据信号的功率谱密度通过截止功率值低于所述光信号的峰值功率谱密度。光接收器（22）包括具有高于种子光信号的线宽的截止频率的电域高通滤波器（26）。

5. 发明授权

US09166681B2 Determining asymmetries in a communication network 有权
标题翻译：确定通信网络中的不对称性
公开(公告)号：US09166681B2
公开(公告)日：2015-10-20
申请号：US13879147
申请日：2011-09-13
申请人： Fabio Cavaliere , Giulio Bottari , Luca Giorgi , Stefano Ruffini
发明人： Fabio Cavaliere , Giulio Bottari , Luca Giorgi , Stefano Ruffini
IPC分类号： H04B10/077 , H04B10/079 , H04B10/07 , H04J3/06 , H04L12/26 , H04J14/02
CPC分类号： H04L43/0864 , H04B10/07 , H04B10/0775 , H04B10/0795 , H04B2210/072 , H04B2210/078 , H04J3/0667 , H04J14/0201 , H04J14/021 , H04J14/0226 , H04J14/0267 , H04J14/0273 , H04J14/0275 , H04Q11/0066 , H04Q2011/0083
摘要： A method for measuring asymmetry in propagation delay of first and second links which connect a first node to a second node of a communication network. The method comprises measuring (101) a round trip delay of the first link. The round trip delay can be measured by transmitting (102) a test signal from the first node to the second node over the first link and receiving a reply to the test signal from the second node over the first link. The method further comprises measuring (105) a round trip delay of the second link. The round trip delay can be measured by transmitting (106) a test signal to the second node over the second link and receiving a reply to the test signal from the second node over the second link. A difference in the propagation delay of the first link with respect to the second link is determined (109) using the measured round trip delays of the first link and the second link.
摘要翻译：一种用于测量将第一节点连接到通信网络的第二节点的第一和第二链路的传播延迟不对称的方法。该方法包括测量（101）第一链路的往返延迟。可以通过在第一链路上将测试信号从第一节点发送（102）到第二节点（102）并通过第一链路接收来自第二节点的测试信号的答复来测量往返延迟。该方法还包括测量（105）第二链路的往返延迟。可以通过在第二链路上向第二节点发送（106）测试信号（106）并通过第二链路从第二节点接收对测试信号的回复来测量往返延迟。使用所测量的第一链路和第二链路的往返延迟来确定第一链路相对于第二链路的传播延迟的差异（109）。

6. 发明申请

US20150131994A1 PASSIVE OPTICAL NETWORKS AND METHOD OF CONFIGURING TRANSMISSION WAVELENGTHS THEREIN 有权
标题翻译：被动光网络及其传输波长配置方法
公开(公告)号：US20150131994A1
公开(公告)日：2015-05-14
申请号：US14399873
申请日：2012-06-08
申请人： Stefano Stracca , Luca Giorgi , Filippo Ponzini
发明人： Stefano Stracca , Luca Giorgi , Filippo Ponzini
IPC分类号： H04J14/02 , H04B10/572 , H04B10/27
CPC分类号： H04J14/023 , H04B10/27 , H04B10/572 , H04J14/0246 , H04J14/025 , H04J14/0282
摘要： A method of configuring transmission wavelengths in a passive optical network comprising a wavelength selective routing element between first and second locations. The method comprises: at a first location: a. iteratively generating and transmitting a first optical signal at different ones of a plurality of wavelengths until a second optical signal is received at the first location; and then b. ceasing transmission of the first optical signal and then recommencing transmission of the first optical signal at the wavelength being transmitted when the second optical signal was received; and at a second location, remote from the first location: c. waiting until the first optical signal is received at the second location; d. iteratively generating and transmitting the second optical signal at different ones of a plurality of wavelengths until the first optical signal is no longer received at the second location; and e. maintaining generation and transmission of the second optical signal at the wavelength being transmitted when the first optical signal was no longer received.
摘要翻译：一种在无源光网络中配置传输波长的方法，包括在第一和第二位置之间的波长选择性路由元件。该方法包括：在第一位置：a。以多个波长的不同方式迭代地生成和发送第一光信号，直到在第一位置处接收到第二光信号; 然后b。停止第一光信号的发送，然后在接收到第二光信号时在正被发送的波长处重新开始传输第一光信号; 并且在远离第一位置的第二位置处：c。等待直到在第二位置处接收到第一光信号; d。以不同的多个波长迭代地生成和发射第二光信号，直到在第二位置不再接收到第一光信号; 和e。当不再接收到第一光信号时，保持在传输的波长处的第二光信号的产生和传输。

7. 发明授权

US08817589B2 Communications network apparatus and line coding method 有权
标题翻译：通信网络设备和线路编码方法
公开(公告)号：US08817589B2
公开(公告)日：2014-08-26
申请号：US13235227
申请日：2011-09-16
申请人： Fabio Cavaliere , Stefan Dahlfort , Luca Giorgi
发明人： Fabio Cavaliere , Stefan Dahlfort , Luca Giorgi
IPC分类号： H04J9/00 , H04J14/00 , H04B10/20 , H04B10/00 , H04L25/49
CPC分类号： H04L25/4902
摘要： Methods and apparatus for line coding in a communications network are described. According to one embodiment of the invention, downstream communications traffic bits are received and mapped into downstream bit positions of a transmission structure. A pre-selected bit in each upstream bit positions of the transmission structure is provided to form a downstream transmission structure. A downstream optical signal carrying the downstream transmission structure is generated for transmission. Upstream communications traffic bits are also received and mapped into the upstream bit positions of the transmission structure to form an upstream transmission structure. An upstream optical signal carrying the upstream transmission structure is generated for transmission.
摘要翻译：描述了通信网络中线路编码的方法和装置。根据本发明的一个实施例，下行通信业务比特被接收并映射到传输结构的下游比特位置。提供传输结构的每个上游位位置中的预选位以形成下游传输结构。产生携带下游传输结构的下行光信号用于传输。上行通信业务比特也被接收并映射到传输结构的上游比特位置，形成上行传输结构。产生携带上游传输结构的上行光信号用于传输。

8. 发明授权

US09917671B2 Passive optical networks and method of configuring transmission wavelengths therein 有权
公开(公告)号：US09917671B2
公开(公告)日：2018-03-13
申请号：US14399873
申请日：2012-06-08
申请人： Stefano Stracca , Luca Giorgi , Filippo Ponzini
发明人： Stefano Stracca , Luca Giorgi , Filippo Ponzini
IPC分类号： H04J14/00 , H04B10/20 , H04J14/02 , H04B10/27 , H04B10/572
CPC分类号： H04J14/023 , H04B10/27 , H04B10/572 , H04J14/0246 , H04J14/025 , H04J14/0282
摘要： A method of configuring transmission wavelengths in a passive optical network comprising a wavelength selective routing element between first and second locations. The method comprises: at a first location: a. iteratively generating and transmitting a first optical signal at different ones of a plurality of wavelengths until a second optical signal is received at the first location; and then b. ceasing transmission of the first optical signal and then recommencing transmission of the first optical signal at the wavelength being transmitted when the second optical signal was received; and at a second location, remote from the first location: c. waiting until the first optical signal is received at the second location; d. iteratively generating and transmitting the second optical signal at different ones of a plurality of wavelengths until the first optical signal is no longer received at the second location; and e. maintaining generation and transmission of the second optical signal at the wavelength being transmitted when the first optical signal was no longer received.

9. 发明申请

US20140376912A1 OPTICAL ACCESS NETWORK 审中-公开
标题翻译：光接入网络
公开(公告)号：US20140376912A1
公开(公告)日：2014-12-25
申请号：US14131668
申请日：2011-07-08
申请人： Fabio Cavaliere , Emesto Ciaramella , Luca Giorgi , Marco Presi
发明人： Fabio Cavaliere , Emesto Ciaramella , Luca Giorgi , Marco Presi
IPC分类号： H04Q11/00 , H04L27/00 , H04J14/02
CPC分类号： H04Q11/0067 , H04B10/272 , H04J14/02 , H04J14/0246 , H04J14/025 , H04J14/0282 , H04J2014/0253 , H04L27/0008 , H04Q2011/0016 , H04Q2011/0086
摘要： An optical access network comprises an optical line terminal and an optical network unit having a transmitter. An optical path connects an output of the transmitter of the optical network unit to the optical line terminal. The transmitter of the optical network unit is arranged to transmit an upstream signal with an amplitude modulation format having at least one level transition per data bit period for at least one of the logical bits and a frequency modulation occurring with the level transition. An optical filter is positioned in the optical path. A central wavelength of a response of the optical filter has an offset with respect to a wavelength of the upstream signal. The wavelength of the upstream signal is located on a slope of the response of the optical filter.
摘要翻译：光接入网络包括光线路终端和具有发射机的光网络单元。光路将光网络单元的发射机的输出连接到光线路终端。光网络单元的发射机被布置为以对于逻辑比特中的至少一个的数据比特周期具有至少一个电平转换的幅度调制格式发送上行信号，以及在电平转换中发生的频率调制。光学滤光器位于光路中。光滤波器的响应的中心波长相对于上游信号的波长具有偏移。上游信号的波长位于光滤波器的响应的斜率上。

10. 发明授权

US08909048B2 Reflective optical networks 有权
标题翻译：反光光网络
公开(公告)号：US08909048B2
公开(公告)日：2014-12-09
申请号：US13382762
申请日：2009-07-23
申请人： Marco Presi , Fabio Cavaliere , Andrea Chiuchiarelli , Pallab Choudhury , Ernesto Ciaramella , Giampiero Contestabile , Luca Giorgi , Roberto Proietti
发明人： Marco Presi , Fabio Cavaliere , Andrea Chiuchiarelli , Pallab Choudhury , Ernesto Ciaramella , Giampiero Contestabile , Luca Giorgi , Roberto Proietti
IPC分类号： H04J14/00 , H04B10/2587 , H04J14/02
CPC分类号： H04B10/2587 , H04J14/0282 , H04J2014/0253
摘要： A reflective optical network (10) comprises an optical network unit (14) and an optical receiver (22). The optical network unit (14) comprises a reflective optical modulator (16) arranged to receive a seed optical signal, and a transmitter controller (18) arranged to receive a data signal (20) and to control the modulator (16) to apply the data signal (20) to the seed optical signal, to form an optical data signal. The transmitter controller (18) is arranged to process the data signal (20) to substantially prevent the optical data signal comprising spectral components at frequencies lower than a cut-off frequency, being the frequency at which a power spectral density of said optical data signal is lower than a peak power spectral density of said optical signal by a cut-off power value. The optical receiver (22) comprises an electrical domain high pass filter (26) having a cut-off frequency higher than a linewidth of the seed optical signal.
摘要翻译：反射光网络（10）包括光网络单元（14）和光接收器（22）。光网络单元（14）包括布置成接收种子光信号的反射光调制器（16）和布置成接收数据信号（20）并且控制调制器（16）应用数据信号（20）到种子光信号，以形成光数据信号。发射机控制器（18）被布置成处理数据信号（20）以基本上防止包括频率低于截止频率的频谱分量的光数据信号，其是所述光数据信号的功率谱密度通过截止功率值低于所述光信号的峰值功率谱密度。光接收器（22）包括具有高于种子光信号的线宽的截止频率的电域高通滤波器（26）。

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