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1. 发明授权

US11197077B2 Transmission device, and transmission method 有权
公开(公告)号：US11197077B2
公开(公告)日：2021-12-07
申请号：US16976357
申请日：2019-02-21
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Takamitsu Tochino , Takashi Mitsui , Kota Asaka , Tomoya Hatano
IPC分类号： H04Q11/00
摘要： Transmitting devices used in an optical access system in which a plurality of the transmitting devices transmit an optical burst signal to a receiving device by time division multiple access, the transmitting devices each including an arithmetic processing unit, the arithmetic processing unit including: a data signal transmission instruction unit, the a data signal transmission instruction unit that outputs a first instruction for controlling transmission processing of a data signal on the basis of a requester's instruction; an optical signal control instruction unit that outputs a second instruction for controlling output processing of an optical signal on the basis of the requester's instruction; and an instruction output adjustment unit that adjusts a timing at which the first instruction is output and a timing at which the second instruction is output.

2. 发明授权

US09276670B2 Self-diagnostic method for PON protection system, and PON protection system 有权
标题翻译： PON保护系统的自诊断方法和PON保护系统
公开(公告)号：US09276670B2
公开(公告)日：2016-03-01
申请号：US14241280
申请日：2012-11-15
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Youichi Fukada , Takashi Mitsui , Takeshi Sakamoto , Naoto Yoshimoto , Yasutaka Kimura
IPC分类号： H04B10/032 , H04Q11/06 , H04Q11/00 , H04L12/24
CPC分类号： H04B10/032 , H04L41/0654 , H04L43/50 , H04Q11/0067 , H04Q2011/0081 , H04Q2011/0083
摘要： A self-diagnostic method for PON protection system, in which optical switch-related failure can be previously inspected, and a PON protection system. A circuit is configured while an optical switch is switched so that signal light from an ONU is input to both a normal system OSU and a redundancy system OSU of an optical access network including the ONU, and there are conducted a circuit configuration test in which the signal light to the normal system OSU and the signal light to the redundancy system OSU are monitored for a predetermined period of time, and when the signal light to one of the OSUs and the signal light to the other do not correspond to each other, it is judged as abnormality and an open state test in which an optical switch is opened so that the signal light from the ONU is input to only the normal system OSU of the optical access network including the ONU, a circuit of the redundancy system OSU and the ONU is brought into an open state, the signal light to redundancy system OSU is monitored for a predetermined time of period, and when the signal light to the redundancy system exists, it is judged as abnormality.
摘要翻译： PON保护系统的自诊断方法，其中可以预先检查光交换机故障，以及PON保护系统。在光开关切换时配置电路，使得来自ONU的信号光被输入到包括ONU的光接入网的正常系统OSU和冗余系统OSU，并且进行电路配置测试，其中监视到正常系统OSU的信号光和到冗余系统OSU的信号光预定的时间段，并且当向OSU中的一个和信号光之间的信号光彼此不对应时，被判断为光开关打开的异常和开状态测试，使得来自ONU的信号光仅输入到包括ONU的光接入网的正常系统OSU，冗余系统OSU的电路和 ONU进入打开状态，信号光到冗余系统OSU被监视预定时间段，并且当到冗余系统的信号光存在时，判断为异常。

3. 发明授权

US11611470B2 Communication apparatus and communication method 有权
公开(公告)号：US11611470B2
公开(公告)日：2023-03-21
申请号：US17258416
申请日：2019-07-05
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Takamitsu Tochino , Takashi Mitsui , Tomoya Hatano
IPC分类号： H04L41/0654 , H04L12/44 , H04L41/0686 , H04Q11/00
摘要： A communication device including a first communication device and a plurality of second communication devices in an optical access system in which a first communication device and the plurality of second communication devices perform communications with each other under a time division multiple access scheme includes an Ethernet controller configured to implement the communications as Ethernet (registered trademark) communications, and a link failure processing unit configured to output, in response to reception of a link failure notification for notifying occurrence of a link failure in the communications from the first communication device, a termination instruction to terminate data transmission when the communication device is performing the data transmission to the first communication device, and a start instruction to start the data transmission after recovery from the link failure when the communication device is not performing the data transmission to the first communication device.

4. 发明授权

US11412316B2 Optical line terminal and bandwidth allocation method 有权
公开(公告)号：US11412316B2
公开(公告)日：2022-08-09
申请号：US15734192
申请日：2019-06-06
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Keita Nishimoto , Takashi Mitsui , Tomoya Hatano
IPC分类号： H04B10/27 , H04Q11/00 , H04B10/272 , H04L12/44 , H04L43/0888 , H04L43/0894 , H04L47/70
摘要： An optical line terminal is provided with: an absorption unit that acquires first information of a type and a format that are dependent on a communication scheme and that converts the acquired first information into second information of a type and a format that are common to mutually different communication schemes; and a bandwidth allocation unit that determines bandwidth allocation of an upstream signal allocated to an optical network unit on the basis of the second information.

5. 发明申请

US20140219654A1 OPTICAL NETWORK SYSTEM 有权
标题翻译：光网络系统
公开(公告)号：US20140219654A1
公开(公告)日：2014-08-07
申请号：US14234780
申请日：2012-10-12
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Takashi Mitsui , Youichi Fukada , Takeshi Sakamoto , Naoto Yoshimoto
IPC分类号： H04Q11/00 , H04B10/27
CPC分类号： H04Q11/0005 , H04B10/032 , H04B10/27 , H04Q11/0067 , H04Q2011/0037 , H04Q2011/0043 , H04Q2011/0081 , H04Q2011/0088
摘要： A normal system OSU, a redundancy system OSU, an optical switch, a concentration switch, and a controller which detects a command input by operation control and performs control according to the command are provided, and in such a state that the controller detects a redundancy system switching command indicating that the normal system OSU is switched to the redundancy system OSU, the controller induces the concentration switch to change a storage destination of a down signal, instructs the normal system OSU which is the switching source OSU to stop transmission of a transmission permission message, instructs the optical switch to switch a path after receiving remaining data processing completion notifications from the concentration switch and the normal system OSU which is the switching source OSU, writes accumulated information about the normal system OSU, which is the switching source OSU, in the redundancy system OSU, and notifies the concentration switch of completion of switching, whereby a down signal is transmitted from the concentration switch.
摘要翻译：提供了通常的系统OSU，冗余系统OSU，光开关，浓度开关和控制器，其检测通过操作控制输入的命令并根据该命令进行控制，并且在控制器检测到冗余指示正常系统OSU切换到冗余系统OSU的系统切换命令，控制器引导浓度切换来改变下行信号的存储目的地，指示作为切换源OSU的正常系统OSU停止传输指示光开关在从浓度开关和作为开关源OSU的正常系统OSU接收到剩余数据处理完成通知之后切换路径，写入关于作为开关源OSU的正常系统OSU的累积信息，在冗余系统OSU中，通知集中切换完成切换，从而从浓度开关发送降低信号。

6. 发明授权

US11444716B2 Optical transmission system and carrier monitoring apparatus 有权
公开(公告)号：US11444716B2
公开(公告)日：2022-09-13
申请号：US17426800
申请日：2020-01-31
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Takashi Mitsui , Toshiaki Shitaba
IPC分类号： H04B10/08 , H04J14/02
摘要： An optical transmission system includes: first and second optical transmitting units for respectively transmitting first and second optical signals that are obtained, respectively, as a result of first and second frequency-multiplexed multi-channel signals being converted by means of FM batch conversion; a carrier monitoring function unit for monitoring each carrier signal included in the optical signals; an output adjustment unit for adjusting signal intensities of the optical signals and outputting the optical signals; a multiplexer for outputting a multiplexed signal of the optical signals; an amplifier for amplifying the multiplexed signal; and first and second optical receiving units for receiving the respective optical signals included in the amplified multiplexed signal. The output adjustment unit adjusts the respective signal intensities of the optical signals such that the signal intensity at each optical receiving unit is larger than or equal to a predetermined value. The carrier monitoring function unit updates the predetermined values based on a minimum optical sensitivity that is calculated based on the amount of frequency deviation of each carrier signal included in the optical signals.

7. 发明授权

US11575443B2 Optical transmission system and output adjustment apparatus 有权
公开(公告)号：US11575443B2
公开(公告)日：2023-02-07
申请号：US17426817
申请日：2020-01-30
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Takashi Mitsui , Toshiaki Shitaba , Akihiro Tanabe , Kengo Horikoshi , Hisao Yoshinaga
IPC分类号： H04B10/293 , H04B10/572
摘要： An optical transmission system includes: a first optical transmitting unit for transmitting a first optical signal having a first wavelength; a second optical transmitting unit for transmitting a second optical signal having a second wavelength; an output adjustment unit for acquiring the first optical signal and the second optical signal, adjusting signal intensities of the acquired optical signals, and outputting the optical signals; a multiplexer for multiplexing the first optical signal and the second optical signal that have been subjected to signal intensity adjustment and outputting a multiplexed signal; an amplifier for amplifying the multiplexed signal; a first optical receiving unit for receiving the amplified first optical signal; and a second optical receiving unit for receiving the amplified second optical signal. The output adjustment unit adjusts the signal intensities of the first optical signal and the second optical signal such that the signal intensity of the first optical signal received by the first optical receiving unit is larger than or equal to a first predetermined value, and the signal intensity of the second optical signal received by the second optical receiving unit is larger than or equal to a second predetermined value.

8. 发明授权

US09179204B2 Optical network system 有权
标题翻译：光网络系统
公开(公告)号：US09179204B2
公开(公告)日：2015-11-03
申请号：US14234780
申请日：2012-10-12
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Takashi Mitsui , Youichi Fukada , Takeshi Sakamoto , Naoto Yoshimoto
IPC分类号： H04B10/03 , H04Q11/00 , H04B10/032 , H04B10/27
CPC分类号： H04Q11/0005 , H04B10/032 , H04B10/27 , H04Q11/0067 , H04Q2011/0037 , H04Q2011/0043 , H04Q2011/0081 , H04Q2011/0088
摘要： A normal system OSU, a redundancy system OSU, an optical switch, a concentration switch, and a controller which detects a command input by operation control and performs control according to the command are provided, and in such a state that the controller detects a redundancy system switching command indicating that the normal system OSU is switched to the redundancy system OSU, the controller induces the concentration switch to change a storage destination of a down signal, instructs the normal system OSU which is the switching source OSU to stop transmission of a transmission permission message, instructs the optical switch to switch a path after receiving remaining data processing completion notifications from the concentration switch and the normal system OSU which is the switching source OSU, writes accumulated information about the normal system OSU, which is the switching source OSU, in the redundancy system OSU, and notifies the concentration switch of completion of switching, whereby a down signal is transmitted from the concentration switch.
摘要翻译：提供了通常的系统OSU，冗余系统OSU，光开关，浓度开关和控制器，其检测通过操作控制输入的命令并根据该命令进行控制，并且在控制器检测到冗余指示正常系统OSU切换到冗余系统OSU的系统切换命令，控制器引导浓度切换来改变下行信号的存储目的地，指示作为切换源OSU的正常系统OSU停止传输指示光开关在从浓度开关和作为开关源OSU的正常系统OSU接收到剩余数据处理完成通知之后切换路径，写入关于作为开关源OSU的正常系统OSU的累积信息，在冗余系统OSU中，通知集中切换完成切换，从而从浓度开关发送降低信号。

9. 发明申请

US20150003822A1 SELF-DIAGNOSTIC METHOD FOR PON PROTECTION SYSTEM, AND PON PROTECTION SYSTEM 有权
标题翻译：用于PON保护系统的自诊断方法和PON保护系统
公开(公告)号：US20150003822A1
公开(公告)日：2015-01-01
申请号：US14241280
申请日：2012-11-15
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Youichi Fukada , Takashi Mitsui , Takeshi Sakamoto , Naoto Yoshimoto , Yasutaka Kimura
IPC分类号： H04B10/032 , H04Q11/00
CPC分类号： H04B10/032 , H04L41/0654 , H04L43/50 , H04Q11/0067 , H04Q2011/0081 , H04Q2011/0083
摘要： A self-diagnostic method for PON protection system, in which optical switch-related failure can be previously inspected, and a PON protection system. A circuit is configured while an optical switch is switched so that signal light from an ONU is input to both a normal system OSU and a redundancy system OSU of an optical access network including the ONU, and there are conducted a circuit configuration test in which the signal light to the normal system OSU and the signal light to the redundancy system OSU are monitored for a predetermined period of time, and when the signal light to one of the OSUs and the signal light to the other do not correspond to each other, it is judged as abnormality and an open state test in which an optical switch is opened so that the signal light from the ONU is input to only the normal system OSU of the optical access network including the ONU, a circuit of the redundancy system OSU and the ONU is brought into an open state, the signal light to redundancy system OSU is monitored for a predetermined time of period, and when the signal light to the redundancy system exists, it is judged as abnormality.
摘要翻译： PON保护系统的自诊断方法，其中可以预先检查光交换机故障，以及PON保护系统。在光开关切换时配置电路，使得来自ONU的信号光被输入到包括ONU的光接入网的正常系统OSU和冗余系统OSU，并且进行电路配置测试，其中监视到正常系统OSU的信号光和到冗余系统OSU的信号光预定的时间段，并且当向OSU中的一个和信号光之间的信号光彼此不对应时，被判断为光开关打开的异常和开状态测试，使得来自ONU的信号光仅输入到包括ONU的光接入网的正常系统OSU，冗余系统OSU的电路和 ONU进入打开状态，信号光到冗余系统OSU被监视预定时间段，并且当到冗余系统的信号光存在时，判断为异常。

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