Patents by Inventor Tatsuya Shimada

Tatsuya Shimada has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220263594
    Abstract: A bandwidth allocation device is included in a communication system having a terminal station device and a terminal device and relaying upstream data, which is received from a communication terminal by a lower device connected to the terminal device, to an upper device connected to the terminal station device. The bandwidth allocation device includes a transmission-permitted period start position determining unit configured to estimate a start position of an arrival period in which the upstream data arrives at the terminal device from the lower device; a transmission-permitted period length determining unit configured to estimate a length of the arrival period based on an amount of upstream data to be transmitted from the lower device to the terminal device; and a bandwidth allocation unit configured to allocate a bandwidth to the terminal device based on the estimated start position and the estimated length of the arrival period.
    Type: Application
    Filed: April 20, 2022
    Publication date: August 18, 2022
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Hiroyuki UZAWA, Tatsuya SHIMADA, Daisuke HISANO, Hiroko NOMURA
  • Publication number: 20220189660
    Abstract: A shielded communication cable. The shielded communication cable includes a pair of insulated wires twisted with each other containing a conductor and an insulation covering which covers the conductor and has the relative dielectric constant of 2.5 or lower, a braided shield which covers the pair of insulated wires, a film-shaped shield which contains a metal film and longitudinally laps the pair of the insulated wires over the braided shield and a jacket having an inner diameter of 3.5 mm or smaller which covers the film-shaped shield. The pair of insulated wires are twisted with each other with a twist pitch of 30 times of an outer diameter of each of the insulated wires or smaller, and the shielded communication cable has a characteristic impedance in range of 100±5?.
    Type: Application
    Filed: January 23, 2020
    Publication date: June 16, 2022
    Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Ryoma UEGAKI, Kinji TAGUCHI, Takaki ENDO, Tatsuya SHIMADA, Toru SHIMIZU, Yuta YASUYOSHI, Kenichiro IWAMA
  • Patent number: 11349766
    Abstract: A bandwidth allocation apparatus includes: a traffic starting position detection unit that detects a start timing of burst traffic on the basis of the traffic information; a traffic information extraction unit that extracts information on a traffic amount of each of a plurality of traffic allocation periods from the traffic information extracted for each lower-level apparatus; a traffic amount estimation unit that calculates an average value of the traffic amount in the traffic allocation periods on the basis of the information on the traffic amount that the traffic information extraction unit has extracted for each lower-level apparatus; and a bandwidth allocation unit that allocates a first bandwidth which is an allocation bandwidth based on the average value calculated by the traffic amount estimation unit to the terminating apparatus from the start timing detected by the traffic starting position detection unit.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: May 31, 2022
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Daisuke Hisano, Hiroyuki Uzawa, Tatsuya Shimada
  • Patent number: 11329749
    Abstract: A bandwidth allocation device is included in a communication system having a terminal station device and a terminal device and relaying upstream data, which is received from a communication terminal by a lower device connected to the terminal device, to an upper device connected to the terminal station device. The bandwidth allocation device includes a transmission-permitted period start position determining unit configured to estimate a start position of an arrival period in which the upstream data arrives at the terminal device from the lower device; a transmission-permitted period length determining unit configured to estimate a length of the arrival period based on an amount of upstream data to be transmitted from the lower device to the terminal device; and a bandwidth allocation unit configured to allocate a bandwidth to the terminal device based on the estimated start position and the estimated length of the arrival period.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: May 10, 2022
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Hiroyuki Uzawa, Tatsuya Shimada, Daisuke Hisano, Hiroko Nomura
  • Patent number: 11296799
    Abstract: An optical transmission system includes ground stations; optical-terminating devices; a traffic-monitoring unit that detects a traffic amount of the uplink signal transmitted in a time-division multiplexing manner for each of the optical-terminating devices; and a bandwidth allocation calculation unit that estimates one optical-terminating device of the optical-terminating devices connected to one ground station of the ground stations having a cell where the moving object is positioned on the basis of the traffic amount, and calculates a first allocation amount of a bandwidth allocated to the uplink signal of the one optical-terminating device connected to the one ground station having the cell where the moving object is positioned and a second allocation amount of a bandwidth allocated to the uplink signal of another optical-terminating device of the optical-terminating devices connected to another ground station of the ground stations having a cell adjacent to the cell where the moving object is positioned.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: April 5, 2022
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Daisuke Hisano, Tatsuya Shimada, Hiroshi Ou, Hiroko Nomura
  • Publication number: 20210288723
    Abstract: An optical transmission system includes ground stations; optical-terminating devices; a traffic-monitoring unit that detects a traffic amount of the uplink signal transmitted in a time-division multiplexing manner for each of the optical-terminating devices; and a bandwidth allocation calculation unit that estimates one optical-terminating device of the optical-terminating devices connected to one ground station of the ground stations having a cell where the moving object is positioned on the basis of the traffic amount, and calculates a first allocation amount of a bandwidth allocated to the uplink signal of the one optical-terminating device connected to the one ground station having the cell where the moving object is positioned and a second allocation amount of a bandwidth allocated to the uplink signal of another optical-terminating device of the optical-terminating devices connected to another ground station of the ground stations having a cell adjacent to the cell where the moving object is positioned.
    Type: Application
    Filed: September 8, 2017
    Publication date: September 16, 2021
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Daisuke HISANO, Tatsuya SHIMADA, Hiroshi OU, Hiroko NOMURA
  • Publication number: 20210243127
    Abstract: A bandwidth allocation apparatus includes: a traffic starting position detection unit that detects a start timing of burst traffic on the basis of the traffic information; a traffic information extraction unit that extracts information on a traffic amount of each of a plurality of traffic allocation periods from the traffic information extracted for each lower-level apparatus; a traffic amount estimation unit that calculates an average value of the traffic amount in the traffic allocation periods on the basis of the information on the traffic amount that the traffic information extraction unit has extracted for each lower-level apparatus; and a bandwidth allocation unit that allocates a first bandwidth which is an allocation bandwidth based on the average value calculated by the traffic amount estimation unit to the terminating apparatus from the start timing detected by the traffic starting position detection unit.
    Type: Application
    Filed: April 19, 2021
    Publication date: August 5, 2021
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Daisuke HISANO, Hiroyuki UZAWA, Tatsuya SHIMADA
  • Publication number: 20210085547
    Abstract: A high-performance bed apparatus is provided. The bed apparatus includes a supporting unit that supports a user, and a control unit that controls an operation of the supporting unit, wherein a speed of the operation of the supporting unit in a case where the user manipulates the supporting unit is higher than a speed at which the control unit automatically causes the supporting unit to operate.
    Type: Application
    Filed: May 10, 2019
    Publication date: March 25, 2021
    Applicant: Paramount Bed Co., Ltd.
    Inventors: Shinnosuke KUBOTA, Tatsuya SHIMADA, Masato SHIMOKAWA, Toshihide SHIINO
  • Patent number: 10925058
    Abstract: An optical transmission device includes a bandwidth allocator that periodically reads bandwidth request information indicating a bandwidth required for a termination device to transmit an uplink signal from a storage and allocates a bandwidth to the termination device on the basis of the read bandwidth request information, and a timing adjuster that adjusts a period at intervals of which the bandwidth allocator reads the bandwidth request information from the storage on the basis of the timing at which resource information used to generate the bandwidth request information is received from an upper device.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: February 16, 2021
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tatsuya Shimada, Takayuki Kobayashi, Hiroshi Ou, Daisuke Hisano
  • Publication number: 20200399459
    Abstract: A composition for a wire coating material containing a silane-crosslinked polyolefin which is excellent in flame-retardancy, fusion resistance, and heat-deformation resistance, and an insulated wire and a wiring harness coating the composition. A composition for a wire coating material contains (A) a silane-grafted polyolefin which is a polyolefin graft-modified with a silane coupling agent, (B) an unmodified polyolefin, (C) a modified polyolefin having one or more functional groups selected from the group consisting of a carboxy group, an ester group, an acid anhydride group, an amino group, and an epoxy group, (D) a flame retardant, and (E) a crosslinking catalyst. The polyolefin of (A) the silane-grafted polyolefin has a density of 0.855 to 0.890 g/cm3 in an ungrafted state and has a melting point of 80° C. or higher, and the unmodified polyolefin has a density of 0.855 to 0.950 g/cm3.
    Type: Application
    Filed: February 27, 2019
    Publication date: December 24, 2020
    Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventor: Tatsuya SHIMADA
  • Patent number: 10805905
    Abstract: Information on allocation of a bandwidth of uplink communication of each of user devices is extracted from information notified from an upper-level device on the uplink communication of the user devices. Correspondence information is created to indicate a correspondence among the upper-level device, the terminal device, the lower-level device, and the user device. A start time point of the uplink communication of the terminal device and an information amount of signals for which transmission of the uplink communication of the terminal device is allowed are allocated to the terminal device on the basis of the information on allocation of the bandwidth of the uplink communication of each of the user devices and the correspondence information.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: October 13, 2020
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Hiroshi Ou, Tatsuya Shimada, Takayuki Kobayashi, Jun Terada
  • Patent number: 10695244
    Abstract: A bed apparatus including, at least, two drivers or a first driver and a second driver, the first driver being in linkage with the second driver, comprises: a calculating means for calculating a calculated bed state value, based on the first driver and the second driver; an error detecting means for detecting error between the calculated bed state value and a designated bed state value designated by the user; and, an error correcting means for correcting the detected error when an error is detected by the error detecting means. As a result, it is possible to provide a bed apparatus that can coincide the designated state of the bed apparatus with the actual state of the bed apparatus by appropriately correcting the error between the drivers.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: June 30, 2020
    Assignee: PARAMOUNT BED CO., LTD.
    Inventors: Tatsuya Shimada, Eita Hirai, Yuji Hosokawa, Dan Kageyama, Shinnosuke Kubota, Hirofumi Nagae
  • Patent number: 10687998
    Abstract: To provide a bed apparatus that permits the bed to be tilted only when the knee bottom in the bed apparatus is raised so as to be able to positively prevent the user from slipping to the foot side when the bed is tilted. The bed apparatus includes: a tilting driver that can perform a tilting operation of the upper frame so as to create difference in height between the head side and the foot side and, at least, lower the foot side; and an operational state detector that detects that a knee bottom actuation assembly for raising and lowering the knee bottom is operable. The tilting driver performs the tilting operation when the knee bottom forms an angle of 0 degrees or greater relative to the ground and when the operational state detector has detected that the knee bottom actuation assembly is operable.
    Type: Grant
    Filed: December 24, 2018
    Date of Patent: June 23, 2020
    Assignee: PARAMOUNT BED CO., LTD.
    Inventors: Tatsuya Shimada, Dan Kageyama, Eita Hirai, Shinnosuke Kubota, Yuji Hosokawa
  • Patent number: 10686545
    Abstract: An optical transmission system of an embodiment connects a plurality of wireless communication systems to each other, and includes a wavelength allocation unit that allocates different wavelengths to optical-terminating devices to which the wireless communication systems next to each other are connected, on the basis of the physical arrangement of each of the plurality of wireless communication system.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: June 16, 2020
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Daisuke Hisano, Tatsuya Shimada, Jun Terada, Hiroshi Ou, Hiroko Nomura
  • Patent number: 10574430
    Abstract: A relay transmission system includes a relay unit configured to relay uplink signals and downlink signals in the first and second communication systems, a time division duplex (TDD) information estimation unit configured to estimate a transmission period of network devices in the first communication system on the basis of the uplink or downlink signal of the first communication system that is relayed by the relay unit, a surplus bandwidth determination unit configured to determine a surplus bandwidth in which an uplink signal of the first communication system is not allocated to a relay target of the relay unit during the transmission period on the basis of the number of network devices and a maximum transmission capacity of the network devices, and a bandwidth allocation unit configured to allocate the uplink signal of the second communication system to the relay target of the relay unit in the surplus bandwidth.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: February 25, 2020
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Daisuke Hisano, Tatsuya Shimada, Hiroshi Ou, Takayuki Kobayashi
  • Patent number: 10555330
    Abstract: A terminal station device is a terminal station device of a communication system in which a high-order device, the terminal station device, an end-terminal device, and a low-order device are communicably connected in this order, the high-order device notifies the low-order device of resource information indicating a resource that is usable in communication, and thereby the resource is allocated to the low-order device. The terminal station device includes: a band allocation unit that allocates a band that is permitted to be used by the end-terminal device for transmission processing to the terminal station device, based on an interval at which the terminal station device has received the resource information.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: February 4, 2020
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Hiroshi Ou, Takayuki Kobayashi, Daisuke Hisano, Tatsuya Shimada
  • Publication number: 20200028605
    Abstract: A bandwidth allocation device is included in a communication system having a terminal station device and a terminal device and relaying upstream data, which is received from a communication terminal by a lower device connected to the terminal device, to an upper device connected to the terminal station device. The bandwidth allocation device includes a transmission-permitted period start position determining unit configured to estimate a start position of an arrival period in which the upstream data arrives at the terminal device from the lower device; a transmission-permitted period length determining unit configured to estimate a length of the arrival period based on an amount of upstream data to be transmitted from the lower device to the terminal device; and a bandwidth allocation unit configured to allocate a bandwidth to the terminal device based on the estimated start position and the estimated length of the arrival period.
    Type: Application
    Filed: February 6, 2018
    Publication date: January 23, 2020
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Hiroyuki UZAWA, Tatsuya SHIMADA, Daisuke HISANO, Hiroko NOMURA
  • Publication number: 20190394135
    Abstract: A bandwidth allocation apparatus includes: a traffic starting position detection unit that detects a start timing of burst traffic on the basis of the traffic information; a traffic information extraction unit that extracts information on a traffic amount of each of a plurality of traffic allocation periods from the traffic information extracted for each lower-level apparatus; a traffic amount estimation unit that calculates an average value of the traffic amount in the traffic allocation periods on the basis of the information on the traffic amount that the traffic information extraction unit has extracted for each lower-level apparatus; and a bandwidth allocation unit that allocates a first bandwidth which is an allocation bandwidth based on the average value calculated by the traffic amount estimation unit to the terminating apparatus from the start timing detected by the traffic starting position detection unit.
    Type: Application
    Filed: January 31, 2018
    Publication date: December 26, 2019
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Daisuke HISANO, Hiroyuki UZAWA, Tatsuya SHIMADA
  • Patent number: 10505657
    Abstract: Information on allocation of a bandwidth of uplink communication of each user device is extracted from information notified by an upper-level device on the uplink communication of the user devices. Identification information of a lower-level device connected to a terminal device and identification information of the user devices are stored in correlation with each other. A bandwidth demanded for uplink communication of the terminal device is determined on the basis of the information on the allocation of the bandwidth of the uplink communication of each of the user devices and the identification information of the user devices. A start time point of the uplink communication of the terminal device and the amount of information of signals for which transmission of the uplink communication of the terminal device is allowed are allocated to the terminal device on the basis of the bandwidth demanded for the uplink communication of the terminal device.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: December 10, 2019
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Hiroshi Ou, Tatsuya Shimada, Takayuki Kobayashi, Jun Terada
  • Publication number: 20190372698
    Abstract: An optical transmission system of an embodiment connects a plurality of wireless communication systems to each other, and includes a wavelength allocation unit that allocates different wavelengths to optical-terminating devices to which the wireless communication systems next to each other are connected, on the basis of the physical arrangement of each of the plurality of wireless communication system.
    Type: Application
    Filed: September 27, 2017
    Publication date: December 5, 2019
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Daisuke HISANO, Tatsuya SHIMADA, Jun TERADA, Hiroshi OU, Hiroko NOMURA