公开(公告)号：US11630656B2

公开(公告)日：2023-04-18

申请号：US17045987

申请日：2019-04-08

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Takumi Harada ,  Manabu Yoshino ,  Junichi Kani

IPC分类号： G06F9/445 ,  G06F8/65 ,  G06F12/02

摘要： A communication apparatus includes: a memory that stores, first data on firmware before update, second data on firmware after the update, and a table in which the first data or the second data is associated with an address where the first data or the second data is positioned; and a processor that executes processing based on the first data or the second data positioned at the address defined in the table.

公开(公告)号：US11360758B2

公开(公告)日：2022-06-14

申请号：US16488864

申请日：2018-02-28

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Takumi Harada ,  Hirotaka Ujikawa ,  Manabu Yoshino ,  Noriyuki Oota ,  Kenichi Suzuki

IPC分类号： G06F8/65 ,  G06F8/654 ,  H04B10/27 ,  H04L41/082 ,  H04L67/00

摘要： A communication processing device including: a memory that stores data relating to a pre-update firmware, and second data relating to a post-update firmware, and that stores first reference destination address indicating the storage area of reference destination included in the first data in association with the reference destination; a rewriting unit configured to rewrite at least some of the first reference destination address stored in the memory with second reference destination address indicating the storage area of the reference destination in the second data; and a control unit configured to, when referring to the reference destination in the first data, refer to the second data on the basis of the second reference destination address stored in the memory.

公开(公告)号：US11876555B2

公开(公告)日：2024-01-16

申请号：US17601706

申请日：2019-04-23

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Tomoya Hatano ,  Takumi Harada ,  Hiroo Suzuki

IPC分类号： H04B10/07 ,  H04B10/079 ,  H04B10/071

CPC分类号： H04B10/0791 ,  H04B10/071 ,  H04B10/0793

摘要： A breakdown determination system includes a switching device that switches a transmission path of optical signals between an upper network and a lower network, one or more intermediate communication devices that relay communication between the upper network and the lower network, a selection device that selects a standby port of the intermediate communication devices, a measurement device that connects to the selected standby port via the switching device and measures an optical signal of the connected standby port, a determination device that determines whether an intermediate communication device including the selected standby port breaks down based on a result of measuring the optical signal, and a storage device that stores a result of determining whether the intermediate communication device breaks down.

公开(公告)号：US11825247B2

公开(公告)日：2023-11-21

申请号：US17602805

申请日：2019-04-23

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Takumi Harada ,  Tomoya Hatano ,  Hiroo Suzuki

IPC分类号： H04Q11/00 ,  H04L41/12

CPC分类号： H04Q11/0066 ,  H04L41/12 ,  H04Q2011/0081

摘要： A wiring information creation system includes a switching device that switches a transmission path of an optical signal between an upper network and a lower network in units of combinations of physical ports, a switching control device that outputs, to the switching device, an instruction for switching the transmission path such that the transmission path passes through a selected physical port, a connection control device that determines whether a communication port of an intermediate communication device that relays communication between the upper network and the lower network and the selected physical port have been connected to each other and acquires, from the intermediate communication device, a number of the communication port connected to the selected physical port, and an information creation device that creates connection information indicating the communication port connected to the selected physical port and updates wiring information indicating connection information for each physical port of the switching device.

公开(公告)号：US11792040B2

公开(公告)日：2023-10-17

申请号：US17604546

申请日：2019-04-23

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Tomoya Hatano ,  Takumi Harada ,  Hiroo Suzuki

IPC分类号： H04L12/46

CPC分类号： H04L12/4604 ,  H04L12/4645 ,  H04L2012/4629

摘要： A communication system is a communication system connected to an upper network and a lower network, and includes at least one intermediate communication device including a plurality of upper ports for inputting and outputting optical signals to and from the upper network, and a plurality of lower ports for inputting and outputting optical signals to and from the lower network, the intermediate communication device being configured to relay communication between the upper network and the lower network, a switching device that is connected to the upper and lower networks and the plurality of upper and lower ports, switches a connection between the upper network and the plurality of upper ports, and switches a connection between the lower network and a plurality of lower ports, and a control device that outputs, to the switching device, an instruction to switch the connection by the switching device according to a communication status between the upper network and the lower network.