Patents Assigned to Fujitsu
  • Patent number: 10102267
    Abstract: An access control apparatus includes an acquisition unit and a changing unit. The acquisition unit divides the data stored in a storage device, which is to be accessed from a plurality of access devices, into a plurality of data groups, and obtains the access frequencies of the individual data groups, which are based on accesses to the data belonging to the data groups. The changing unit changes, on the basis of the access frequencies of the individual data groups, definition of data groups accessible by the individual access devices such as to reduce a difference in total access frequency of accessible data groups among the plurality of access devices.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: October 16, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Kazuhiko Inoue, Toshiaki Senda, Nozomi Minami
  • Patent number: 10103124
    Abstract: A semiconductor device includes a first semiconductor chip including plural circuit blocks provided on a semiconductor substrate, and plural through-silicon vias that are arranged so as to surround the outer periphery of each of the plural circuit blocks and that penetrate the semiconductor substrate, and a second semiconductor chip that is stacked on the first semiconductor chip, and that is supplied with a power source through the plural through-silicon vias.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: October 16, 2018
    Assignee: FUJITSU LIMITED
    Inventor: Hironori Kawaminami
  • Patent number: 10104715
    Abstract: A communication method and apparatus at an unlicensed band. One of the methods includes: an eNB transmits request information respectively to a small cell and UE connected to the eNB, requesting the small cell and the UE to measure a candidate channel on the unlicensed band; the eNB negotiates with the small cell for operational parameters of the small cell according to measurement results reported by the small cell and UE; and the eNB transmits the operational parameters of the small cell negotiated by the eNB with the small cell to the UE, so that the UE accesses to the small cell according to the operational parameters of the small cell and performs data transmission, transmitting data on the unlicensed band, the small cell may select a working channel having minimum interference on other neighboring systems and subjected to minimum interference from the other neighboring systems at the UE side.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: October 16, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Hua Zhou, Yi Zhang
  • Publication number: 20180293035
    Abstract: A non-transitory computer readable medium storing a program that causes a computer to execute a process, the computer transmitting a print instruction data to a server device, the process including obtaining information regarding a printer device from the server device, the server device transmitting print output data, the printer device to which the print output data is transmitted being determined based on an output request from the printer device or output destination information included in the print instruction data received from the computer, determining whether the server is available upon a reception of a print operation, presenting candidates of the printer device to which the print output data corresponding to the print operation is transmitted based on the information when the server is determined to be not available, and transmitting the print output data corresponding to the print operation to a specific printer device selected from the candidates.
    Type: Application
    Filed: April 2, 2018
    Publication date: October 11, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Junki Hakamata, Osamu Kasuga, Tetsuhiro Yamaguchi
  • Publication number: 20180294888
    Abstract: An optical transmitter includes an optical modulator configured to modulate light from a light source; and a processor configured to generate a drive signal that is input into the optical modulator. The processor inserts a bias control signal amplitude-modulated at a low frequency, into an analog signal at fixed intervals, to generate the drive signal.
    Type: Application
    Filed: April 5, 2018
    Publication date: October 11, 2018
    Applicant: Fujitsu Optical Components Limited
    Inventors: Sukeyuki IWATA, Toshiki TANAKA, Masato NISHIHARA, Naoki KUWATA
  • Publication number: 20180294958
    Abstract: Methods and systems for encryption control in optical networks without data loss enable various transitions related to encryption of an ODU data payload. A transition from unencrypted data payload to encrypted data payload is performed without data loss or dropping of OTN frames. A transition from encrypted data payload to unencrypted data payload is performed without data loss or dropping of OTN frames. A rotation of the encryption key to another encryption key is also performed without data loss or dropping of OTN frames.
    Type: Application
    Filed: April 7, 2017
    Publication date: October 11, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Muhammad Sakhi Sarwar, Erik Charles Stewart, Junichi Sugiyama, Abirami Sathyamoorthy, Swati Mittal
  • Publication number: 20180294894
    Abstract: There is provided a distortion cancellation apparatus including a memory, and a processor coupled to the memory and the processor configured to acquire a plurality of transmission signals to be wirelessly transmitted at different frequencies, acquire a first plurality of reception signals to which an intermodulation signal generated due to the plurality of transmission signals wirelessly transmitted is added, multiplex at least one set of transmission signals among the plurality of transmission signals to be wirelessly transmitted so as to generate at least one multiplexed transmission signal, generate a cancellation signal for canceling the intermodulation signal, based on the at least one multiplexed transmission signal and the first plurality of reception signals, and cancel the intermodulation signal added to the first plurality of reception signals, based on the cancellation signal.
    Type: Application
    Filed: February 15, 2018
    Publication date: October 11, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Satoshi Matsubara, Yusuke Tobisu, Kohei Ohta
  • Publication number: 20180294820
    Abstract: An encoding apparatus includes a memory and a processor configured to acquire text data, specify a first dynamic dictionary among a plurality of dynamic dictionaries based on attribute information of a first word included in the text data, register the first word in association with a first dynamic code in the first dynamic dictionary, and encode the first word into the first dynamic code.
    Type: Application
    Filed: March 8, 2018
    Publication date: October 11, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Masahiro Kataoka, Junki Hakamata
  • Publication number: 20180290130
    Abstract: A photoexcitation material includes: a wurtzite type solid solution crystal containing t gallium, zinc, nitrogen and oxygen, wherein a peak (A) of an existence ratio of nitrogen or oxygen which is a first adjacent atom of the gallium or zinc and a peak (B) of an existence ratio of gallium or zinc which is a second adjacent atom of the gallium or zinc satisfy a relational expression of A>B in a relationship between a distance and the existence ratio of the adjacent atom of the gallium or zinc, the relationship being obtained from an extended X-ray absorption fine structure analysis.
    Type: Application
    Filed: June 13, 2018
    Publication date: October 11, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Toshihisa Anazawa, Yoshihiko Imanaka, Toshio MANABE, Hideyuki AMADA, Sachio IDO, Fumiaki KUMASAKA, Naoki AWAJI
  • Publication number: 20180293225
    Abstract: A non-transitory computer-readable storage medium storing a program that causes a computer to execute a process, the process including generating index information regarding a first string data including a plurality of words or phrases, the index information indicating appearance positions of each of characters, setting flag information to the index information, the flag information indicating head positions plurality of words or phrases and end positions of each of the plurality of words or phrases, and extracting, from a second string data, a plurality of dividable words or phrases corresponding to the plurality of words or phrases by using the index information to which the flag information is set.
    Type: Application
    Filed: March 29, 2018
    Publication date: October 11, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Masahiro Kataoka, Masao Ideuchi, Seiji Okura
  • Publication number: 20180295017
    Abstract: Methods for performing dynamic interface identification and configuration are disclosed. The method may include assessing multiple configurable ports of a computing device to determine which ports are active and whether they are client-facing or network-facing. This may include sending a discovery message or a security protocol message to a network target to see if the target responds. The method may be performed by a dynamic interface manager executing on the computing device. The dynamic interface manager may configure a single active network-facing port as the only network interface for the device and may configure other active ports as client interfaces. The dynamic interface manager may enable internal connections between the network interface and the client interfaces. The dynamic interface manager may reassess the ports in response to connection changes, which may result in a different port being configured as the only network interface for the device.
    Type: Application
    Filed: April 11, 2017
    Publication date: October 11, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Andrew Mao, Melvin Tan, William Eugene Beesley
  • Publication number: 20180293270
    Abstract: An update reflection apparatus includes a memory and a processor coupled to the memory. The processor is configured to accumulate first information relating to first records in a write buffer of a row-type. The first records are to update a database of an append-only type. The database is in a column-format. The processor is configured to convert a second record of the first records to a column format. The second record satisfies a specific condition. The processor is configured to append the converted second record to the database.
    Type: Application
    Filed: March 20, 2018
    Publication date: October 11, 2018
    Applicant: FUJITSU LIMITED
    Inventor: Eiji Seki
  • Publication number: 20180293285
    Abstract: An information providing method includes: generating, at time of registering know-how with respect to a task defined in task information, a first-type status tag based on a user status including task information of a first task being executed by a first user; storing the first-type status tag in a corresponding manner to the know-how in a memory; generating a second-type status tag based on a user status including task information of a second task being executed by a second user; extracting, from a plurality of sets of know-how stored in the memory, know-how associated to the second-type status tag; and providing the extracted know-how to the second user.
    Type: Application
    Filed: June 5, 2018
    Publication date: October 11, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Kei TAIRA, Motoshi SUMIOKA, Masahide NODA, Takashi OHNO, Tatsuro MATSUMOTO
  • Publication number: 20180295756
    Abstract: An electromagnetic wave absorber includes: a first layer having a first enclosing layer that encloses an electromagnetic wave radiator, and a first metal film formed on the first enclosing layer.
    Type: Application
    Filed: March 29, 2018
    Publication date: October 11, 2018
    Applicant: FUJITSU LIMITED
    Inventor: Tatsuya Hirose
  • Publication number: 20180294215
    Abstract: A semiconductor device includes: a first semiconductor chip that includes through electrodes; a second semiconductor chip; and an interposer that has a recessed portion formed in a front surface thereof and includes a first wiring provided under a bottom surface of the recessed portion, in which the first semiconductor chip is fitted in the recessed portion with a chip top surface thereof flipped down to be electrically connected to the first wiring, the second semiconductor chip is connected on the front surface, of the interposer, around the recessed portion, and at the same time, is stacked on the first semiconductor chip in a manner to partially overlap the first semiconductor chip, and is electrically connected to the first semiconductor chip via the through electrodes.
    Type: Application
    Filed: March 21, 2018
    Publication date: October 11, 2018
    Applicant: FUJITSU LIMITED
    Inventor: Hironori KAWAMINAMI
  • Publication number: 20180293033
    Abstract: A printing management device includes a memory and a processor coupled to the memory. The processor is configured to receive a printing output request from a terminal. The printing output request requests to print output data without specifying a printer to be used. The processor is configured to transmit the printing output request to a specific printer in association with a time-related deletion condition to cause the specific printer to delete the printing output request from a first memory of the specific printer when a time period set in the time-related deletion condition is exceeded. The processor is configured to retransmit the printing output request to the specific printer when a retransmission request for requesting retransmission of the printing output request is received from the specific printer.
    Type: Application
    Filed: March 28, 2018
    Publication date: October 11, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Tetsuhiro Yamaguchi, JUNKI HAKAMATA, Etsushi Fujita
  • Publication number: 20180289332
    Abstract: A sensor system includes a transmitter configured to transmit radio wave and a detector configured to detect a body motion when a change in amplitude of a received wave of a transmitted radio wave is detected and a lack of a frequency component indicating one or both of a heartbeat and a respiration in a frequency analysis result of the received wave is detected.
    Type: Application
    Filed: June 8, 2018
    Publication date: October 11, 2018
    Applicant: FUJITSU LIMITED
    Inventors: TAKAYUKI YAMAJI, Yuta MASUDA
  • Publication number: 20180294865
    Abstract: An apparatus for relaying wireless communications between a first apparatus and a second apparatus includes: a transmitter to amplify power of a first signal and transmit of the first signal to the first apparatus; a receiver to receive a mixed signal including a second signal from the second apparatus and the first signal transmitted from the transmitter; and a processor to perform a process for canceling the first signal out of the mixed signal, the process including generating a first cancellation signal having a phase changed from a phase of the first signal to be transmitted, generating a composite signal by combining the first cancellation signal with the mixed signal, extracting a difference between the composite signal and the first signal to be transmitted, generating a second cancellation signal based on the extracted difference, and generating a cancelled signal produced by combining the second cancellation signal with the composite signal.
    Type: Application
    Filed: March 30, 2018
    Publication date: October 11, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Shimpei Abe, Hitoshi Nakazawa
  • Publication number: 20180295114
    Abstract: A method of private mutually authenticated key exchange is provided. The method may include receiving, at the first device, a message transmitted from a second device and including a hierarchical inner-product encryption (HIPE) ciphertext. Further, the method may include decrypting, at the first device, the HIPE ciphertext to generate a first authenticated encryption (AE) ciphertext. The method may further include decrypting, at the first device, the first AE ciphertext. Further, the method may include encrypting, at the first device, a second AE ciphertext including a signature and one or more attributes of the first device. Moreover, the method may include transmitting, to the second device, another message including the second AE ciphertext.
    Type: Application
    Filed: April 5, 2017
    Publication date: October 11, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Michel Ferreira ABDALLA, Wei-Peng CHEN
  • Publication number: 20180291516
    Abstract: An electrolysis system includes a power generator configured to output a first direct current power; a plurality of DC-DC converters respectively configured to convert the first direct current power into a second direct current power and output voltage information and current information of the second direct current power; a plurality of electrolyzers respectively configured to receive the second direct current power output from a DC-DC converter and generate gas; a control circuit configured to output control information that maximizes the first direct current power based on a voltage value and a current value of the first direct current power; and a processor configured to output the target current value and a selection signal indicating whether or not to select each of the plurality of electrolyzers to each of the plurality of respective DC-DC converters, based on the control information, the voltage information and the current information.
    Type: Application
    Filed: April 2, 2018
    Publication date: October 11, 2018
    Applicant: FUJITSU LIMITED
    Inventor: Hiroshi Nakao