Patents by Inventor Anan SAWABE

Anan SAWABE 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: 12254768
    Abstract: A remote monitoring system (100) according to the present disclosure includes: an observation unit (101) configured to observe traffic in a network that corresponds to a movement section where a mobile object moves, the mobile object serving as a target to be monitored; and a specification unit (102) configured to divide the movement section on the basis of the observed traffic, and specify a delay jitter distribution in each divided section.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: March 18, 2025
    Assignee: NEC CORPORATION
    Inventors: Anan Sawabe, Takanori Iwai
  • Patent number: 12231947
    Abstract: A priority control apparatus includes: load information acquisition part which acquires communication load information per priority at relay apparatus that controls allocation of communication resources relative to individual communication depending on a priority that is set for the individual communication between two or more communication apparatuses; communication quality acquisition part which acquires communication quality as to control target communication; and priority control part which calculates a first priority, with which communication quality as to the control target communication can satisfy a predetermined condition, by using a mathematical model that indicates a relationship between a piece of communication load information before a priority as to the control target communication is set as the first priority and a communication quality when the priority as to the control target communication concerned is set as the first priority, and which sets the calculated first priority as the priority of
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: February 18, 2025
    Assignee: NEC CORPORATION
    Inventors: Kosei Kobayashi, Anan Sawabe, Takanori Iwai
  • Publication number: 20250055804
    Abstract: A communication apparatus (100) according to the present disclosure includes: a communication unit (101) configured to transmit a downlink packet via a network and receive an ACK packet for the downlink packet via the network; an acquisition unit (102) configured to acquire an RTT for the downlink packet already transmitted by the communication unit (101), the RTT being time from when the communication unit (101) transmits the downlink packet to when the communication unit (101) receives the ACK packet, and a transmission time of the downlink packet already transmitted by the communication unit (101); and a transmission timing control unit (103) configured to control transmission timing of the downlink packet by the communication unit (101) on the basis of the RTT of the downlink packet already transmitted by the communication unit (101) and a transmission time of the downlink packet already transmitted by the communication unit (101).
    Type: Application
    Filed: December 22, 2021
    Publication date: February 13, 2025
    Applicant: NEC Corporation
    Inventors: Anan SAWABE, Yusuke SHINOHARA, Takanori IWAI
  • Publication number: 20250039742
    Abstract: A relay apparatus (100) according to the present disclosure includes: a communication unit (101) that transmits a downlink packet received from a transmission-side communication apparatus (200) via a network to a reception-side communication apparatus (300) via the network, and transmits an ACK packet for the downlink packet received from the reception-side communication apparatus (300) via the network to the transmission-side communication apparatus (200) via the network; and a transmission timing control unit (102) that controls transmission timing of the ACK packet by the communication unit (101) so as to transmit the received ACK packet at a specific interval.
    Type: Application
    Filed: December 22, 2021
    Publication date: January 30, 2025
    Applicant: NEC Corporation
    Inventors: Anan SAWABE, Yusuke SHINOHARA, Takanori IWAI
  • Publication number: 20250030642
    Abstract: In order to strategically utilize a network even when a band usable for the network varies, a packet control system (1) includes: an acquisition unit (11) that acquires a packet associated with a sending timing; an enqueue unit (12) that enqueues the packet into any of a plurality of queues in accordance with the sending timing associated with the packet; and a sending unit (17) that dequeues a packet from each of the plurality of queues in accordance with a dequeue timing specified for the queue and that sends the packet to a network. The number of packets to be sent to the network by the sending unit (17) is restricted in accordance with a band usable for the network, and the sending unit (17) sends, after the sending timing associated with the packet, a packet that is not sent at the sending timing.
    Type: Application
    Filed: June 30, 2022
    Publication date: January 23, 2025
    Applicant: NEC Corporation
    Inventors: Anan SAWABE, Yusuke Shinohara
  • Publication number: 20250014159
    Abstract: A network management apparatus (100B) according to the present disclosure includes: an acquisition unit (111) configured to acquire, in order to recognize a target object from a video image, a required quality indicating quality of the video image required by a video image distribution apparatus configured to distribute the video image; a first calculation unit (112) configured to calculate an analysis performance for analyzing the video image based on the required quality acquired by the acquisition unit (111), the analysis performance enabling the target object to be recognized; and a second calculation unit (113) configured to calculate a parameter related to the distribution of the video image based on the analysis performance calculated by the first calculation unit (112).
    Type: Application
    Filed: September 28, 2021
    Publication date: January 9, 2025
    Applicant: NEC Corporation
    Inventors: Anan SAWABE, Yusuke SHINOHARA, Takanori Iwai, Koichi NIHEI
  • Publication number: 20240372794
    Abstract: A terminal (400-N) according to the present disclosure includes an acquisition unit (401) configured to acquire a reception interval of a plurality of packets received via a communication path; and a specifying (402) unit configured to specify a delay characteristic of a delay occurring in the communication path based on the distribution of the reception intervals.
    Type: Application
    Filed: April 14, 2021
    Publication date: November 7, 2024
    Applicant: NEC Corporation
    Inventors: Anan Sawabe, Shinya Yasuda, Takanori Iwai, Yusuke Shinohara
  • Publication number: 20240283747
    Abstract: In order to make it possible to control a delay jitter in packet transmission control, a packet control system (1) includes: an acquisition unit (11) that acquires a packet associated with a delay jitter which is requested; an enqueue unit (12) that enqueues the packet into a queue at a level which corresponds to the delay jitter associated with the packet among a plurality of queues which are classified into levels such that delay jitters are different for the respective levels; and a dequeue unit (13) that dequeues, in accordance with a dequeue timing specified for the queue, the packet which has been enqueued into the queue at the level corresponding to the delay jitter associated with the packet, and that sends the packet which has been dequeued to a network.
    Type: Application
    Filed: June 30, 2022
    Publication date: August 22, 2024
    Applicant: NEC Corporation
    Inventors: Anan SAWABE, Yusake CHINOHARA
  • Patent number: 12069324
    Abstract: In order to provide a communication control method that enables resolution of a distributed moving image to be changed, a communication apparatus includes a first estimation section, and a calculation section. The first estimation section estimates a first resolution of a distributed moving image, based on traffic of the distributed moving image. The calculation section calculates a first bit rate for distributing the distributed moving image at a second resolution, based on the first resolution. The communication apparatus may further include a control section that performs traffic control of the distributed moving image, based on the first bit rate. The first estimation section may estimate the first resolution by using statistical information on resolutions of a plurality of distributed moving images.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: August 20, 2024
    Assignee: NEC CORPORATION
    Inventor: Anan Sawabe
  • Publication number: 20240244456
    Abstract: The requirement feature extractor extracts statistical features related to service requirements of UEs. The traffic feature extractor extracts statistical features related to incoming and outgoing traffic. The channel feature extractor extracts statistical features related to a wireless channel condition and a wireless channel configuration. The context unit generate a context vector based on the statistical features. The ML model array estimates QoS for mixed-numerology configurations based on the context vector. The decision unit selects a mixed-numerology configuration used for data transmission and data reception based on the estimated QoS.
    Type: Application
    Filed: May 26, 2021
    Publication date: July 18, 2024
    Applicant: NEC Corporation
    Inventors: Dheeraj KOTAGIRI, Anan Sawabe, Eiji Takhashi, Takanori Iwai
  • Patent number: 11863399
    Abstract: In order to enable stabilizing control of communication in a communication network, a system according to an aspect of the present disclosure includes: an obtaining means for obtaining work-related information related to human work in network operation; and a training means for training a machine learning based controller for controlling communication in a communication network, based on the work-related information.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: January 2, 2024
    Assignee: NEC CORPORATION
    Inventors: Anan Sawabe, Takanori Iwai, Kosei Kobayashi
  • Patent number: 11831560
    Abstract: To perform flexible communication control according to variation in traffic so as to satisfy a plurality of QoS (Quality of Service) indexes. A communication apparatus (1) according to the present invention includes: a distribution unit (12) configured to distribute, based on a distribution rule for satisfying a plurality of different QoS indexes set in a plurality of queues (111 to 11n), respectively, a received packet to any one of the plurality of queues; and an update unit (13) configured to update the distribution rule based on performance information of each of the plurality of queues, the performance information being calculated for the QoS index set in each of the queues.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: November 28, 2023
    Assignee: NEC CORPORATION
    Inventors: Anan Sawabe, Takanori Iwai
  • Publication number: 20230370858
    Abstract: An object of the present disclosure is to provide a method capable of estimating the radio quality more accurately. The method includes acquiring first weather information and first geographic information at a first observation point, second weather information and second geographic information at a second observation point, and radio quality information at a radio base station; learning a model for estimating radio quality based on the first weather information and the first geographic information, the second weather information and the second geographic information, and the radio quality information; and estimating the radio quality using the model and at least one of third weather information at the first observation point or fourth weather information at the second observation point.
    Type: Application
    Filed: October 12, 2020
    Publication date: November 16, 2023
    Applicant: NEC Corporation
    Inventors: Dheeraj Kotagiri, Anan Sawabe, Takanori lwai
  • Publication number: 20230319369
    Abstract: A video quality estimation apparatus (100) according to the present disclosure includes a first collection unit (101) configured to collect network quality information about a network pertaining to distribution of a video, a second collection unit (102) configured to collect video quality information about the video, and an estimation unit (103) configured to estimate a first bit rate corresponding to a resolution of the video based on the network quality information and the video quality information.
    Type: Application
    Filed: August 26, 2020
    Publication date: October 5, 2023
    Applicant: NEC Corporation
    Inventors: Anan SAWABE, Takanori IWAI
  • Publication number: 20230274638
    Abstract: A remote monitoring system (100) according to the present disclosure includes: an observation unit (101) configured to observe traffic in a network that corresponds to a movement section where a mobile object moves, the mobile object serving as a target to be monitored; and a specification unit (102) configured to divide the movement section on the basis of the observed traffic, and specify a delay jitter distribution in each divided section.
    Type: Application
    Filed: July 31, 2020
    Publication date: August 31, 2023
    Applicant: NEC Corporation
    Inventors: Anan Sawabe, Takanori lwai
  • Publication number: 20230259122
    Abstract: A remote control system (100) according to the present disclosure includes: a delay jitter specification unit (101) configured to specify a delay jitter distribution in a network that performs communication with a mobile object serving as a target to be monitored; a degree-of-risk specification unit (102) configured to specify a degree of risk of the mobile object on the basis of the specified delay jitter distribution, and a state of the mobile object; and a control unit (103) configured to control the mobile object on the basis of the specified degree of risk.
    Type: Application
    Filed: July 31, 2020
    Publication date: August 17, 2023
    Applicant: NEC Corporation
    Inventors: Anan Sawabe, Takanori lwai
  • Patent number: 11558769
    Abstract: An estimating apparatus (1) according to the present invention includes a plurality of feature quantity calculating units (111 to 11n) configured to implement processing of calculating, from a communication traffic, a differing feature quantity group for each of a plurality of types of control attributes relating to communication control, the plurality of feature quantity calculating units being each associated with each of the plurality of types of control attributes, a calculating unit (12) configured to calculate, with regard to each of two or more of the plurality of types of control attributes, each of the feature quantity groups from the communication traffic by use of the feature quantity calculating unit being associated with each of the control attributes, and an estimating unit (13) configured to estimate an attribute value of each of the two or more control attributes from each of the calculated feature quantity groups.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: January 17, 2023
    Assignee: NEC CORPORATION
    Inventors: Anan Sawabe, Takanori Iwai
  • Publication number: 20220408304
    Abstract: A priority control apparatus includes: load information acquisition part which acquires communication load information per priority at relay apparatus that controls allocation of communication resources relative to individual communication depending on a priority that is set for the individual communication between two or more communication apparatuses; communication quality acquisition part which acquires communication quality as to control target communication; and priority control part which calculates a first priority, with which communication quality as to the control target communication can satisfy a predetermined condition, by using a mathematical model that indicates a relationship between a piece of communication load information before a priority as to the control target communication is set as the first priority and a communication quality when the priority as to the control target communication concerned is set as the first priority, and which sets the calculated first priority as the priority of
    Type: Application
    Filed: November 6, 2019
    Publication date: December 22, 2022
    Applicant: NEC Corporation
    Inventors: Kosei KOBAYASHI, Anan SAWABE, Takanori IWAI
  • Publication number: 20220393987
    Abstract: In order to able to mislead estimation regarding a transmission source through analysis of a communication traffic, a method according to an aspect of the present disclosure includes: dividing an original communication flow from a source apparatus into a plurality of communication flows matching a selected traffic characteristic; and transmitting a packet belonging to each of the plurality of communication flows to a reconstructing apparatus reconstructing the plurality of communication flows into the original communication flow.
    Type: Application
    Filed: November 12, 2019
    Publication date: December 8, 2022
    Applicant: NEC Corporation
    Inventor: Anan SAWABE
  • Patent number: 11516274
    Abstract: A throughput division means (11) divides a throughput of a communication between a video delivery server configured to deliver, in a plurality of delivery modes, video data to a user terminal device used by a user and the user terminal device in a delivery period of the video data, according to a period of each delivery mode. A playback bit rate estimation means (12) estimates a playback bit rate of the video data, based on a throughput divided according to a period of the delivery mode. Thus, estimation precision of a video playback bit rate can be improved even when a video delivery server delivers video data in a plurality of delivery modes.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: November 29, 2022
    Assignee: NEC CORPORATION
    Inventors: Anan Sawabe, Takanori Iwai