公开(公告)号：US20250080784A1

公开(公告)日：2025-03-06

申请号：US18804186

申请日：2024-08-14

Applicant: Fujitsu Limited

Inventor： Junki OURA ,  Akihiro WADA ,  Masatoshi OGAWA ,  Kaoru YOKOO ,  Jun KAKUTA ,  Teruhisa NINOMIYA

IPC: H04N21/24 ,  H04N21/238 ,  H04N21/25

Abstract: A method to estimate, in a communication system that includes a first communication device that executes a service, a second communication device that communicates with the first communication device via a network, and a monitoring device that monitors the network, quality of the service executed by the first communication device, includes obtaining a packet transmitted in a predetermined direction over the network, classifying the obtained packet into a packet of a first type and a packet of a second type different from the packet of the first type, and determining a feature for each type of the classified packet, and estimating the quality of the service executed by the first communication device by using a training model trained by using the feature and the quality of the service at timing when the packet used to determine the feature is transmitted, by processor circuitry.

公开(公告)号：US20240179097A1

公开(公告)日：2024-05-30

申请号：US18433731

申请日：2024-02-06

Applicant: FUJITSU LIMITED

Inventor： Tokuro KUBO ,  Akihiro WADA ,  Tatsuya KIKUZUKI ,  Kotaro SHIIZAKI ,  Kaoru YOKOO ,  Teruhisa NINOMIYA

IPC: H04L47/25 ,  H04L41/147 ,  H04L47/70

CPC classification number: H04L47/25 ,  H04L41/147 ,  H04L47/823

Abstract: A device stores relationship information that indicates a correspondence relationship between a received signal strength indicator at a time of reception of a signal from a wireless transmission path and an available bandwidth of data transmission in the wireless transmission path; acquires a measurement value of the received signal strength indicator during communication with an image transmission device that transmits image data via a communication path; estimates a first available bandwidth in the wireless transmission path based on the measurement value and the relationship information; generates control information for adjustment of a transmission rate of image data in the image transmission device based on the first available bandwidth; transmits the control information to the image transmission device; measure a second available bandwidth in the wireless transmission path; and optimizes the correspondence relationship based on a comparison result between the first available bandwidth and the second available bandwidth.

公开(公告)号：US20140021265A1

公开(公告)日：2014-01-23

申请号：US14034700

申请日：2013-09-24

Applicant: FUJITSU LIMITED

Inventor： Manabu KAI ,  Teruhisa NINOMIYA

IPC: G06K19/077

CPC classification number: G06K19/07758 ,  G06K19/07756 ,  G06K19/07771 ,  H01Q1/2225 ,  H01Q7/00 ,  H01Q9/285 ,  H01Q21/30

Abstract: A metal sheet including: a first and second metal sections disposed at point symmetrical positions about a center point of the metal sheet, wherein each portion of the first and second metal sections is affixed to a tag so as to contact to the tag which performs non-contact communication.

Abstract translation: 一种金属板，包括：第一和第二金属部分，其布置在围绕金属片的中心点的点对称位置处，其中第一和第二金属部分的每个部分被固定到标签上，以便与执行非金属片的标签接触 - 联系沟通。

公开(公告)号：US20230283804A1

公开(公告)日：2023-09-07

申请号：US18068835

申请日：2022-12-20

Applicant: Fujitsu Limited

Inventor： Kotaro SHIIZAKI ,  Akihiro WADA ,  Tatsuya KIKUZUKI ,  Teruhisa NINOMIYA ,  Kaoru YOKOO ,  KOHJI YAMADA

IPC: H04N19/593 ,  H04N19/177

CPC classification number: H04N19/593 ,  H04N19/177

Abstract: A non-transitory computer-readable recording medium storing a transmission program causing a computer of a first transmission apparatus to execute a procedure, the procedure includes detecting a collision between a transmission timing of an intra-coded video frame in first video data transmitted from the first transmission apparatus and a transmission timing of an intra-coded video frame in second video data transmitted from a second transmission apparatus, changing, when the collision is detected at a first time, a frame type of the first video data to one of a forward predictive coded video frame and a bi-directional predictive coded video frame, and transmitting the first video data of which the frame type is changed, at a second time at which the intra-coded video frame in the first video data is scheduled to be transmitted.

公开(公告)号：US20180083721A1

公开(公告)日：2018-03-22

申请号：US15674080

申请日：2017-08-10

Applicant: FUJITSU LIMITED

Inventor： Akihiro WADA ,  Tatsuya KIKUZUKI ,  Teruhisa NINOMIYA

IPC: H04B17/309 ,  H04B17/10 ,  H04W16/14

CPC classification number: H04B17/309 ,  H04B17/102 ,  H04W16/14 ,  H04W24/08

Abstract: There is provided a wireless analysis apparatus including: a memory unit configured to store information of electric power distribution indicating a temporal change of a frequency spectrum; and a computing unit configured to perform a procedure including: generating a plurality of divided regions having predetermined band widths by dividing the electric power distribution, calculating a temporal change amount of electric power with regard to each of the divided regions, detecting a rising portion and a falling portion of the electric power on the basis of the calculated temporal change amount, and identifying an individual signal component in the electric power distribution on the basis of the positions of the rising portion and the falling portion in the divided regions.