Patents by Inventor Toshimitsu Tsubaki

Toshimitsu Tsubaki 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).

  • Patent number: 12028725
    Abstract: A message relay apparatus and a message relay method that achieve high message reachability taking communication network situation into consideration are provided. A message relay apparatus 100 interposed between an application 20 and a device 30 includes a device communication state determination functional unit 131 that determines communication availability with the device 30, a network state estimation unit 133 that estimates a network state based on the communication availability, and a message processing unit 110 that determines forwarding availability of an application message based on the network state and buffers the application message when forwarding is not available.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: July 2, 2024
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Kojun Koshiji, Naoki Higo, Takuma Tsubaki, Toshimitsu Tsubaki, Takeshi Kuwahara, Masanao Nakano, Yuki Yano, Takao Kurahashi
  • Publication number: 20240019574
    Abstract: An aspect of the present invention is a Doppler compensation system including: a sound wave receiving element that receives a sound wave transmitted by a transmitter; a ground-speed-related quantity acquisition unit that acquires a ground-speed-related quantity that is a physical quantity related to a vector representing a ground speed of a receiver including the sound wave receiving element based on an acceleration of the receiver; an extraction unit that extracts a sound wave including an estimation target sound wave that is a sound wave to be estimated from among sound waves received by the receiver; an arrival direction estimation unit that estimates an arrival direction of the estimation target sound wave based on the estimation target sound wave; a reception-direction-speed-related quantity estimation unit that estimates a quantity related to a speed in a reception direction that is a direction in which the estimation target sound wave viewed from the receiver arrives based on the ground-speed-related q
    Type: Application
    Filed: November 17, 2020
    Publication date: January 18, 2024
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Miharu OIWA, Toshimitsu TSUBAKI, Hiroyuki FUKUMOTO, Yosuke FUJINO, Marina NAKANO, Yuya ITO
  • Patent number: 11575731
    Abstract: A data transmission apparatus causes a computer to receive first data and second data, each of which has a different transmission destination, evaluate relevance between the first data and the second data, and transmit the first data and the second data to the respective transmission destinations, and the transmitting of the data further includes transmitting the first data to the transmission destination of the second data in accordance with evaluation results obtained in the evaluating of the relation, so that a diversity of the data that can be collected by the transmission destination of the data is increased.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: February 7, 2023
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Kojun Koshiji, Naoki Higo, Toshimitsu Tsubaki, Masanao Nakano, Tatsuya Ishihara, Yoshiko Sueda
  • Patent number: 11546545
    Abstract: A video management device includes a storage processing unit configured to store video data received through a network in a storage unit, a calculation unit configured to classify a video data group stored in the storage unit based on combinations of imaging locations and content of video data, and to calculate a frequency of appearance of each of the combinations, and a selection unit configured to select video data to be deleted from the storage unit based on the frequency of appearance, thereby increasing a possibility that the deletion of a high-value video will be avoided.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: January 3, 2023
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takuma Tsubaki, Naoki Higo, Kojun Koshiji, Toshimitsu Tsubaki, Takeshi Kuwahara
  • Patent number: 11467797
    Abstract: Provided is a virtual world construction system that does not impair consistency between virtual worlds and places only small loads on terminals. A client application 10 that is implemented on a user terminal, a plurality of server applications 20 that are implemented on servers, and a proxy 30 that is located on a communication path between the user terminal and the servers and relays operation information and video information are provided. The proxy 30 includes a motion duplication unit 31 that transmits operation information to the plurality of servers by duplicating the operation information, and a video integration/rendering control unit 32 that transmits timing information regarding rendering timing to the plurality of servers, and transmits video information received from at least one of the servers, to the user terminals.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: October 11, 2022
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Naoki Higo, Ryota Ishibashi, Takuma Tsubaki, Kojun Koshiji, Toshimitsu Tsubaki, Takeshi Kuwahara
  • Publication number: 20220210673
    Abstract: A message relay apparatus and a message relay method that achieve high message reachability taking communication network situation into consideration are provided. A message relay apparatus 100 interposed between an application 20 and a device 30 includes a device communication state determination functional unit 131 that determines communication availability with the device 30, a network state estimation unit 133 that estimates a network state based on the communication availability, and a message processing unit 110 that determines forwarding availability of an application message based on the network state and buffers the application message when forwarding is not available.
    Type: Application
    Filed: February 4, 2020
    Publication date: June 30, 2022
    Inventors: Kojun Koshiji, Naoki Higo, Takuma TSUBAKI, Toshimitsu Tsubaki, Takeshi Kuwahara, Masanao Nakano, Yuki YANO, Takao KURAHASHI
  • Patent number: 11368389
    Abstract: Communication quality is improved by performing, with a computer, determining whether redundancy of a communication path is necessary or not and a compression level of data based on communication quality associated with transfer of the data; compressing data to be transferred in accordance with the compression level determined; and a transmission step of, when it is determined that redundancy of the communication path is necessary, making the communication path redundant and transmitting the data to each of the resulting communication paths.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: June 21, 2022
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Naoki Higo, Toshimitsu Tsubaki, Yoshiko Sueda
  • Patent number: 11350244
    Abstract: An information delivery technique for, at the time of delivery of area information via a network, delivering area information about a destination before a device arrives at the destination is disclosed. One aspect of the present disclosure is an information delivery apparatus including a delivery information management function unit configured to manage area information to be delivered, a destination management function unit configured to manage a destination of a device, and a communication function unit configured to deliver the area information to the device, wherein the destination management function unit determines the destination of the device using movement information about the device, and the communication function unit delivers area information about the destination to the device before the device moves to the destination.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: May 31, 2022
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Kojun Koshiji, Naoki Higo, Toshimitsu Tsubaki, Masanao Nakano, Tatsuya Ishihara, Yoshiko Sueda
  • Patent number: 11349586
    Abstract: A time providing method includes: by a computer, upon receiving data from a device, estimating a generation time of the data using a reception time of the data and a first delay time of the device previously estimated; providing information indicating the generation time to the data; and transmitting the data provided with the information indicating the generation time to a destination of the data.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: May 31, 2022
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Kojun Koshiji, Naoki Higo, Toshimitsu Tsubaki, Masanao Nakano, Tatsuya Ishihara, Yoshiko Sueda
  • Patent number: 11297283
    Abstract: A video management apparatus includes a storage processing unit configured to store, in a storage unit, video data received through a network, a determination unit configured to determine whether or not video data groups stored in the storage unit are analyzed based on a first period of time indicating a period of time until a free capacity becomes insufficient in the storage unit and a second period of time indicating a maximum analysis time required for analysis of the video data groups, a first calculation unit configured to analyze the video data groups to calculate a predetermined statistic in a case where it is determined that the video data groups are analyzed, and a deletion unit configured to delete the analyzed video data groups.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: April 5, 2022
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takuma Tsubaki, Naoki Higo, Kojun Koshiji, Toshimitsu Tsubaki, Takeshi Kuwahara
  • Publication number: 20220027116
    Abstract: Provided is a virtual world construction system that does not impair consistency between virtual worlds and places only small loads on terminals. A client application 10 that is implemented on a user terminal, a plurality of server applications 20 that are implemented on servers, and a proxy 30 that is located on a communication path between the user terminal and the servers and relays operation information and video information are provided. The proxy 30 includes a motion duplication unit 31 that transmits operation information to the plurality of servers by duplicating the operation information, and a video integration/rendering control unit 32 that transmits timing information regarding rendering timing to the plurality of servers, and transmits video information received from at least one of the servers, to the user terminals.
    Type: Application
    Filed: August 1, 2019
    Publication date: January 27, 2022
    Inventors: Naoki Higo, Ryota Ishibashi, Takuma TSUBAKI, Kojun Koshiji, Toshimitsu Tsubaki, Takeshi Kuwahara
  • Publication number: 20210399980
    Abstract: Communication quality is improved by performing, with a computer, a determination step of determining whether redundancy of a communication path is necessary or not and a compression level of data based on communication quality associated with transfer of the data; a compression step of compressing data to be transferred in accordance with the compression level determined in the determination step; and a transmission step of, when it is determined that redundancy of the communication path is necessary in the determination step, making the communication path redundant and transmitting the data to each of the resulting communication paths.
    Type: Application
    Filed: February 7, 2019
    Publication date: December 23, 2021
    Inventors: Naoki HIGO, Toshimitsu TSUBAKI, Yoshiko SUEDA
  • Publication number: 20210400239
    Abstract: A video management apparatus includes a storage processing unit configured to store, in a storage unit, video data received through a network, a determination unit configured to determine whether or not video data groups stored in the storage unit are analyzed based on a first period of time indicating a period of time until a free capacity becomes insufficient in the storage unit and a second period of time indicating a maximum analysis time required for analysis of the video data groups, a first calculation unit configured to analyze the video data groups to calculate a predetermined statistic in a case where it is determined that the video data groups are analyzed, and a deletion unit configured to delete the analyzed video data groups.
    Type: Application
    Filed: October 10, 2019
    Publication date: December 23, 2021
    Inventors: Takuma TSUBAKI, Naoki HIGO, Kojun KOSHIJI, Toshimitsu TSUBAKI, Takeshi KUWAHARA
  • Patent number: 11172053
    Abstract: In one aspect of the present invention, a transfer apparatus includes a reception unit configured to receive a packet from a source which distributes data according to a transmission control protocol (TCP); a storage unit configured to store data included in the received packet in a buffer based on a TCP sequence number of the received packet; a TCP transfer unit configured to transfer the received packet to a first sink which requests distribution according to the TCP; and a UDP transfer unit configured to read the data from the buffer and transfer the read data to a second sink which requests distribution according to a user datagram protocol (UDP).
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: November 9, 2021
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Naoki Higo, Ryota Ishibashi, Toshimitsu Tsubaki, Yoshiko Sueda, Masao Aihara
  • Publication number: 20210337161
    Abstract: A video management device includes a storage processing unit configured to store video data received through a network in a storage unit, a calculation unit configured to classify a video data group stored in the storage unit based on combinations of imaging locations and content of video data, and to calculate a frequency of appearance of each of the combinations, and a selection unit configured to select video data to be deleted from the storage unit based on the frequency of appearance, thereby increasing a possibility that the deletion of a high-value video will be avoided.
    Type: Application
    Filed: October 1, 2019
    Publication date: October 28, 2021
    Inventors: Takuma TSUBAKI, Naoki HIGO, Kojun KOSHIJI, Toshimitsu TSUBAKI, Takeshi KUWAHARA
  • Publication number: 20210281630
    Abstract: A data transmission apparatus causes a computer to receive first data and second data, each of which has a different transmission destination, evaluate relevance between the first data and the second data, and transmit the first data and the second data to the respective transmission destinations, and the transmitting of the data further includes transmitting the first data to the transmission destination of the second data in accordance with evaluation results obtained in the evaluating of the relation, so that a diversity of the data that can be collected by the transmission destination of the data is increased.
    Type: Application
    Filed: May 13, 2019
    Publication date: September 9, 2021
    Inventors: Kojun KOSHIJI, Naoki HIGO, Toshimitsu TSUBAKI, Masanao NAKANO, Tatsuya ISHIHARA, Yoshiko SUEDA
  • Publication number: 20210266705
    Abstract: An information delivery technique for, at the time of delivery of area information via a network, delivering area information about a destination before a device arrives at the destination is disclosed. One aspect of the present disclosure is an information delivery apparatus including a delivery information management function unit configured to manage area information to be delivered, a destination management function unit configured to manage a destination of a device, and a communication function unit configured to deliver the area information to the device, wherein the destination management function unit determines the destination of the device using movement information about the device, and the communication function unit delivers area information about the destination to the device before the device moves to the destination.
    Type: Application
    Filed: May 14, 2019
    Publication date: August 26, 2021
    Inventors: Kojun KOSHIJI, Naoki HIGO, Toshimitsu TSUBAKI, Masanao NAKANO, Tatsuya ISHIHARA, Yoshiko SUEDA
  • Publication number: 20210234626
    Abstract: A time providing method includes: by a computer, upon receiving data from a device, estimating a generation time of the data using a reception time of the data and a first delay time of the device previously estimated; providing information indicating the generation time to the data; and transmitting the data provided with the information indicating the generation time to a destination of the data.
    Type: Application
    Filed: April 25, 2019
    Publication date: July 29, 2021
    Inventors: Kojun Koshiji, Naoki Higo, Toshimitsu Tsubaki, Masanao Nakano, Tatsuya Ishihara, Yoshiko Sueda
  • Patent number: 10951931
    Abstract: A data distribution system including a source configured to distribute data and a sink configured to process the distributed data includes a marker configured to receive a packet distributed by the source, add supplementary information to the received packet based on information obtained from a header of the packet, and transfer the packet; and a filter configured to receive the packet transferred by the marker, determine whether the received packet can be transferred to the sink based on the supplementary information added to the packet, transfer the packet to the sink if the packet can be transferred to the sink.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: March 16, 2021
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Naoki Higo, Ryota Ishibashi, Toshimitsu Tsubaki, Yoshiko Sueda, Masao Aihara
  • Publication number: 20190373085
    Abstract: In one aspect of the present invention, a transfer apparatus includes a reception unit configured to receive a packet from a source which distributes data according to a transmission control protocol (TCP); a storage unit configured to store data included in the received packet in a buffer based on a TCP sequence number of the received packet; a TCP transfer unit configured to transfer the received packet to a first sink which requests distribution according to the TCP; and a UDP transfer unit configured to read the data from the buffer and transfer the read data to a second sink which requests distribution according to a user datagram protocol (UDP).
    Type: Application
    Filed: January 11, 2018
    Publication date: December 5, 2019
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Naoki HIGO, Ryota ISHIBASHI, Toshimitsu TSUBAKI, Yoshiko SUEDA, Masao AIHARA