Patents Assigned to Fujitsu Limited
  • Publication number: 20240056228
    Abstract: A network system includes nodes that form a ring network, wherein a transmission source node includes a first processor configured to divide transmission target data into a plurality of pieces of divided data, transmit the divided data in a first direction round of the ring network, and transmit redundant data in a second direction round, a first relay node includes a second processor configured to detect occurrence of a failure in a path to a transmission destination node in the ring network, and when there is un-transmitted divided data, transmit a transmission request for un-transmitted redundant data in the second direction round, and a second relay node includes a third processor configured to save at least one piece of redundant data in a memory, and when the un-transmitted redundant data is saved in the memory, transmit the un-transmitted redundant data in the second direction round toward the transmission destination node.
    Type: Application
    Filed: June 6, 2023
    Publication date: February 15, 2024
    Applicant: Fujitsu Limited
    Inventor: Taketoshi YOSHIDA
  • Publication number: 20240056304
    Abstract: A storage medium storing an information management program that causes a computer to execute a process that includes acquiring a first cumulative consideration amount from a most upstream process in a plurality of processes included in a supply chain to a first process; generating a consideration amount commitment by concealing the first cumulative consideration amount by using a random number; registering the consideration amount commitment in a blockchain; generating a consideration amount proof that is a zero knowledge proof that proves validity of the second cumulative consideration amount without disclosing the second cumulative consideration amount; and notifying the second process of the second cumulative consideration amount, the random number, and the consideration amount proof.
    Type: Application
    Filed: May 8, 2023
    Publication date: February 15, 2024
    Applicant: Fujitsu Limited
    Inventors: Takeshi MIYAMAE, Shenbin ZHANG
  • Publication number: 20240056109
    Abstract: An optical signal transmission device and method based on digital predistortion in a symbol domain is provided. The optical signal transmission device includes: a memory; and a processor coupled to the memory to control execution of a process to: perform digital predistortion processing on a symbol sequence of a signal to be transmitted to obtain a digital predistortion processed signal; perform short-pulse shaping processing on the digital predistortion processed signal to obtain a short-pulse shaping processed signal, wherein a memory length introduced by the short-pulse shaping processing is less than or equal to a memory length of the optical transmitter; and generate and transmit an optical signal based on the short-pulse shaping processed signal.
    Type: Application
    Filed: August 1, 2023
    Publication date: February 15, 2024
    Applicant: FUJITSU LIMITED
    Inventors: Ke ZHANG, Zhenning TAO
  • Publication number: 20240053990
    Abstract: An instruction processing apparatus including a processor configured to execute a process including issuing, by an instruction scheduler, instructions that can be executed; holding, by a register file, data used by the instructions; executing, by an execution unit including a plurality of stages, the instructions issued by the instruction scheduler; detecting, by a detector, early termination in which an execution result of an intermediate stage, which is before a final stage among the plurality of stages, is the same as an execution result of the execution unit; and transferring, by a bypass controller, the data output from the register file or the execution result from the execution unit, to an input of the execution unit, and in response to the detector detecting the early termination, bypassing the execution result of the intermediate stage to the input of the execution unit.
    Type: Application
    Filed: June 13, 2023
    Publication date: February 15, 2024
    Applicants: Fujitsu Limited, Inter-University Research Institute Corporation Research Organization of Information and Systems
    Inventors: Masahiro Goshima, Yi Ge
  • Publication number: 20240057205
    Abstract: A message transmission apparatus, applicable to a first integrated access and backhaul node (IAB-node) includes: a receiver configured to: receive a second radio resource control (RRC) reconfiguration message for path migration of a second IAB-node while the first IAB-node is still connected with source parent node, the second radio resource control (RRC) reconfiguration message being transmitted by a donor central unit (donor-CU), the second IAB-node is a downstream child node of the first IAB-node; and receive a first RRC reconfiguration message for path migration of the first IAB-node, the first RRC reconfiguration message being transmitted by the donor-CU; and a transmitter configured to forward, to the second IAB-node, the second RRC reconfiguration message which is withhold until random access of the first IAB-node is successful.
    Type: Application
    Filed: October 30, 2023
    Publication date: February 15, 2024
    Applicant: FUJITSU LIMITED
    Inventors: Yang LU, Su YI, Meiyi JIA, Guorong LI
  • Patent number: 11901951
    Abstract: A distorter coefficient updating apparatus, a distorter coefficient updating method, and a digital predistortion apparatus. The distorter coefficient updating apparatus is configured at an optical receiver side, and comprises a processor configured to: perform re-distortion processing on a signal after decision according to a first distorter coefficient to generate a first reference signal; and calculate a second distorter coefficient according to the first reference signal and a signal before decision, or according to the first reference signal, the signal after decision, and the signal before decision The second distorter coefficient is fed back to the processor as the first distorter coefficient of the processor in a next update, and the second distorter coefficient is fed back to a predistorter on an optical transmitter side as a predistortion coefficient for the predistorter to perform a predistortion processing on a signal input to the predistorter.
    Type: Grant
    Filed: June 7, 2022
    Date of Patent: February 13, 2024
    Assignee: FUJITSU LIMITED
    Inventors: Ke Zhang, Zhenning Tao
  • Patent number: 11902451
    Abstract: A method of implementing a revocable threshold hierarchical identity-based signature scheme may include receiving an identifier associated with a user. A first secret key based on the identifier may be generated. A string and the identifier may be directed to be posted on a block of a blockchain. A second secret key may be generated using the string, the first secret key, and the identifier. The block that includes the string and the identifier may be signed using the second secret key. A message may be signed using the second secret key to generate a signature. The signature may be provided to a device. The signature may be verifiable by the device using the string and the identifier obtained from the block by the device.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: February 13, 2024
    Assignee: FUJITSU LIMITED
    Inventors: Avradip Mandal, Hart Montgomery, Arnab Roy
  • Patent number: 11902192
    Abstract: A method and apparatus for determining power, in which whether to increase target received power is determined according to a change of either of a selected SSB and a selected CSI-RS. Hence, the selected CSI-RS is taken into account, and power is increased as necessary and useless retransmission is avoided, thereby increasing the success rate of random access and reducing power consumption of the UE.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: February 13, 2024
    Assignee: FUJITSU LIMITED
    Inventors: Meiyi Jia, Qinyan Jiang, Xin Wang
  • Patent number: 11902014
    Abstract: A signal processing device includes: a first conversion circuit that, among optical signals of channels included in wavelength division multiplexed optical signal, converts electric field signals that indicate electric field components of the optical signal of a predetermined channel, from time domain signals into frequency domain signals; a filter that passes the electric field signals converted into the frequency domain signals with a passband; a second conversion circuit that converts the electric field signals, from the frequency domain signals into the time domain signals; an amplitude measurement circuit that measures first amplitudes of the electric field signals and second amplitudes of the electric field signals; and a notification circuit that notifies a power measurement device that measures power of the optical signal of the predetermined channel, of the first amplitudes and the second amplitudes used in correction of a measurement error of the power of the optical signal.
    Type: Grant
    Filed: July 12, 2022
    Date of Patent: February 13, 2024
    Assignee: FUJITSU LIMITED
    Inventor: Hidetoshi Sato
  • Patent number: 11900745
    Abstract: A locker apparatus includes: a memory; and a processor coupled to the memory. The processor executes a process including: first obtaining, from a first terminal of a deliverer of a parcel that stores the parcel into a locker, notification of a first proof issued from a transmission source of the parcel to the deliverer, the first proof including identification information of the parcel, identification information of a receiver of the parcel, and identification information of the transmission source; second obtaining notification of a second proof issued from the transmission source to the receiver, the second proof including identification information of the parcel, identification information of the receiver, and identification information of the transmission source in accordance with permission to store the parcel into the locker; and unlocking the locker when contents of the first proof matches that of the second proof.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: February 13, 2024
    Assignee: FUJITSU LIMITED
    Inventors: Takayoshi Nakayama, Kenji Taka
  • Publication number: 20240045737
    Abstract: A non-transitory computer-readable recording medium stores a program for causing a computer to execute a process, the process includes acquiring a source code that includes descriptions of a plurality of tasks to be executed in parallel, detecting descriptions of two or more communication tasks each of which controls communication, among the descriptions of the plurality of tasks defined in the acquired source code, and adding a description that forms data dependency between communication tasks chosen in accordance with execution orders of the two or more communication tasks, to each of the detected descriptions of the two or more communication tasks in the acquired source code.
    Type: Application
    Filed: June 6, 2023
    Publication date: February 8, 2024
    Applicant: Fujitsu Limited
    Inventor: Keisuke TSUGANE
  • Publication number: 20240049221
    Abstract: A wireless communication apparatus, wherein the apparatus includes a receiver configured to receive downlink control information, the downlink control information being used to trigger PUSCH transmission, and the downlink control information including a first SRS resource indicator and a second SRS resource indicator, and a processor configured to determine whether the PUSCH transmission is transmitted according to one of the first SRS resource indicator and the second SRS resource indicator, or is transmitted according to the first SRS resource indicator and the second SRS resource indicator, according to at least one of the following indications the number of repetitions of the PUSCH transmission, a repetition scheme to which the PUSCH transmission corresponds, and an indication of a dynamic switching field in the downlink control information.
    Type: Application
    Filed: October 20, 2023
    Publication date: February 8, 2024
    Applicant: FUJITSU LIMITED
    Inventors: Zhe CHEN, Xin WANG
  • Publication number: 20240046424
    Abstract: An image processing device includes a processor that executes a procedure. The procedure includes: generating a manipulated image by executing first manipulation processing on an input image so as to anonymize information contained in the input image; generating a reconstructed image by performing reconstruction processing on the manipulated image to reconstruct the information; and, based on a comparison between the input image and the reconstructed image, determining whether or not to execute second manipulation processing on the input image or on the manipulated image to anonymize the information, wherein the second manipulation processing is different from the first manipulation processing.
    Type: Application
    Filed: May 31, 2023
    Publication date: February 8, 2024
    Applicants: Fujitsu Limited, Inter-University Research Institute Corporation Research Organization of Information and Systems
    Inventors: Jun TAKAHASHI, Mingxie Zheng, Toshiyuki Yoshitake, Masayoshi Shimizu, Isao Echizen
  • Publication number: 20240047299
    Abstract: In order to provide a conductive heat radiation film that can stabilize the shape, a method of manufacturing a conductive heat radiation film 30 includes: a first heated film 28 including a plurality of first metal particles 27b; and a plurality of carbon nanotubes 24 including tips 24a adhered to the first heated film 28.
    Type: Application
    Filed: July 3, 2023
    Publication date: February 8, 2024
    Applicant: Fujitsu Limited
    Inventors: Shinichi HIROSE, Daiyu KONDO
  • Publication number: 20240046259
    Abstract: A storage medium storing a consideration distribution program that causes at least one computer to execute a process that includes performing verification of validity of a first transaction stored in a blockchain, the first transaction including a first cumulative consideration from a most upstream process of a supply chain to a certain process, the first transaction being locked in one step downstream process by using a hash value based on a certain random number; storing a second transaction in the blockchain when a result of the verification is valid, the second transaction including a second cumulative consideration from the most upstream process to one step upstream process, the second transaction being locked; acquiring the first cumulative consideration by unlocking the first transaction based on the certain random number; and sending the certain random number to the one step downstream process.
    Type: Application
    Filed: May 26, 2023
    Publication date: February 8, 2024
    Applicant: Fujitsu Limited
    Inventors: Takeshi MIYAMAE, Shenbin ZHANG
  • Publication number: 20240046688
    Abstract: A non-transitory computer-readable storage medium storing a determination program that causes at least one computer to execute a process, the process includes obtaining a plurality of pair images of a person obtained from a overlapping region of images captured by each of a plurality of cameras; generating a directed graph including nodes corresponding to person features obtained from each of a plurality of person images included in the plurality of obtained pair images; acquiring weights of links between the nodes in the generated directed graph based on a number of person images with similar person features between the nodes; and determining a combination of the person features in which a number of the person images with the similar person features in the plurality of pair images is maximized based on the acquired weights of the links.
    Type: Application
    Filed: April 27, 2023
    Publication date: February 8, 2024
    Applicant: Fujitsu Limited
    Inventor: Shun KOHATA
  • Publication number: 20240046704
    Abstract: A determination apparatus calculates, based on a first data group which includes data indicating behaviors of people, reference behavior data indicating a reference behavior among the people about each of a plurality of types of behaviors, acquires, from the first data group, first behavior data indicating a behavior of a first person about each behavior type, calculates difference between the first behavior data and the reference behavior data about each behavior type, determines, from the plurality of types, at least one first type whose difference is at least a first threshold, registers second behavior data indicating a behavior of the first person about each first type in a second data group, extracts third behavior data indicating a behavior of a second person from an input image, and determines whether the second person is identical with the first person based on comparison between the third and second behavior data.
    Type: Application
    Filed: June 9, 2023
    Publication date: February 8, 2024
    Applicants: Fujitsu Limited, Inter-University Research Institute Corporation Research Organization of Information and Systems
    Inventors: Mingxie Zheng, Jun Takahashi, Toshiyuki Yoshitake, Masayoshi Shimizu, Isao Echizen
  • Publication number: 20240048519
    Abstract: According to an aspect of an embodiment operations may include receiving, by a server, message shares. The operations may also include generating, by the server, an aggregate hash share of the message shares. In addition, the operations may include receiving, by the server, a verification vector iteration from another server and generating another verification vector iteration based on: the received verification vector iteration, a permutation that corresponds to the server, and a masking vector that corresponds to the server. The operations may also include obtaining a verification hash that is based on the verification vector and participating in a multiparty computation to determine an aggregate hash. The operations may also include determining, as part of the multiparty computation, whether one or more of the servers is operating in an adverse manner based on whether the verification hash is equal to the aggregate hash.
    Type: Application
    Filed: August 3, 2022
    Publication date: February 8, 2024
    Applicant: FUJITSU LIMITED
    Inventors: Avradip MANDAL, Hart MONTGOMERY, Jaspal SINGH
  • Publication number: 20240048331
    Abstract: A wireless communication system includes: a base station that transmits a first signal including information indicating whether the control information is able to be transmitted using the channel assigned to the transmission of the data; and a terminal that receives the first signal. In a case that the timing of transmitting the data and the timing of transmitting the control information overlap with each other, the terminal transmits, when the information in the first signal indicates that the control information is not able to be transmitted using the channel, the control information to the base station using a resource other than the channel, and transmits, when the information in the first signal indicates that the control information is able to be transmitted using the channel, the control information to the base station using the channel.
    Type: Application
    Filed: October 6, 2023
    Publication date: February 8, 2024
    Applicant: FUJITSU LIMITED
    Inventor: Tsuyoshi Shimomura
  • Publication number: 20240045983
    Abstract: A verification method for a computer to execute a process includes receiving a verification request for a first document created by a first person together with first information that identifies a reliability of document creation by the first person, the first information being generated based on evaluation information on documents created by the first person; in a case where the verification request is received, generating second information depending on the reliability of the document creation by the first person based on the received first information; and outputting a verification result of the first document, the result containing the generated second information.
    Type: Application
    Filed: October 19, 2023
    Publication date: February 8, 2024
    Applicant: FUJITSU LIMITED
    Inventors: Kazuya Uno, Kouichi Itoh