Patents Assigned to Fujitsu
  • Patent number: 8922879
    Abstract: An optical amplifying device includes a semiconductor laser that outputs a pump light having a power according to a provided drive current; a rare-earth-doped amplifying medium that amplifies an input light by the pump light output from the semiconductor laser; and a detector that detects, in the power of the pump light, a fluctuation faster than a response speed of a gain of the amplifying medium with respect to the power of the pump light. The optical amplifying device varies the drive current provided to the semiconductor laser based on the fluctuation detected by the detector.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: December 30, 2014
    Assignee: Fujitsu Limited
    Inventor: Yuji Tamura
  • Publication number: 20140380091
    Abstract: A control device controls the switch device and the plurality of processing apparatuses such that, when one of replicated data pieces stored in two or more different storage devices among the plurality of storage devices is lost, the replicated data piece stored in a second storage device other than a first storage device storing lost replicated data piece among the two or more different storage devices is copied through the switch device to reconstruct the lost replicated data piece. Thus, a redundancy of replicated data is restored without affecting a bandwidth of a network.
    Type: Application
    Filed: May 5, 2014
    Publication date: December 25, 2014
    Applicant: FUJITSU LIMITED
    Inventor: Yotaro Konishi
  • Publication number: 20140376784
    Abstract: A biometric authentication device includes: a memory configured to store an enrollment feature data; a biometric sensor that obtains a biometric image of a user; and a circuitry configured to: obtain a surface reflection degree of the biometric image; extract a comparison-use feature data from the biometric image; perform a comparing based on a similarity between the comparison-use feature data and the enrollment feature data; and reflect a correction coefficient and the surface reflection degree related to a region of the biometric image to the similarity.
    Type: Application
    Filed: September 11, 2014
    Publication date: December 25, 2014
    Applicant: FUJITSU LIMITED
    Inventor: Takahiro Aoki
  • Publication number: 20140380326
    Abstract: A non-transitory, computer-readable recording medium stores a scheduling program that causes a first core among multiple cores to execute a process that includes selecting a core from the cores; referring to a storage unit to assign first software assigned to the selected core, to a second core different from the selected core and among the cores, the storage unit being configured to store for each core among the cores, identification information of software assigned to the core; and assigning second software to the selected core as a result of assigning the first software to the second core, the second software being assigned when an activation request for the second software is accepted.
    Type: Application
    Filed: September 5, 2014
    Publication date: December 25, 2014
    Applicant: Fujitsu Limited
    Inventor: Koji Kurihara
  • Publication number: 20140380005
    Abstract: A storage controller performing a copy process in which data stored in a copy source storage area is copied to a copy destination storage area, the storage controller includes a processor, wherein the processor receives a transfer command for giving an instruction for transferring data stored in a first area of the copy source storage area to a second area of the copy source storage area, starts a transfer process in which transfer data from the first area is read and is written into the second area in accordance with reception of the transfer command, and starts copying the transfer data into a corresponding area of the copy destination storage area that corresponds to the second area in the copy process together with the starting of the transfer process.
    Type: Application
    Filed: May 27, 2014
    Publication date: December 25, 2014
    Applicant: FUJITSU LIMITED
    Inventor: MASANORI FURUYA
  • Publication number: 20140375869
    Abstract: An imaging apparatus includes an imaging unit that photographs an object through a lens; a memory unit that stores images captured by the imaging unit; an adjusting unit that adjusts a position of the lens, based on a value that is obtained from each of the images captured by the imaging unit and that represents an extent of focusing by the lens; a calculating unit that calculates a local maximum value of the value, based on temporal changes of the value that is obtained from each of the images successively captured by the imaging unit and that represents the extent of focusing by the lens; and a selecting unit that selects an image from among the images stored in the memory unit, based on differences of the local maximum value and the value obtained from each of the images and representing the extent of focusing by the lens.
    Type: Application
    Filed: May 15, 2014
    Publication date: December 25, 2014
    Applicant: FUJITSU SEMICONDUCTOR LIMITED
    Inventor: Soichi HAGIWARA
  • Publication number: 20140376820
    Abstract: An evaluation apparatus includes: a memory; and a processor coupled to the memory and configured to calculate a first feature by calculating a first-order difference for a first image, calculate a second feature by calculating a second-order difference for the first image, calculate a third feature by calculating a first-order difference for a second image, calculate a fourth feature by calculating a second-order difference for the second image, and evaluate deterioration of the second image with respect to the first image according to a first simultaneous distribution that represents a first relationship between the first feature and the second feature and to a second simultaneous distribution that represents a second relationship between the third feature and the fourth feature.
    Type: Application
    Filed: April 28, 2014
    Publication date: December 25, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Shohei NAKAGATA, Ryuta Tanaka
  • Publication number: 20140380029
    Abstract: A mobile terminal apparatus includes a detection unit that detects a temperature of the mobile terminal apparatus, a determination unit that determines whether or not the detected temperature is a predetermined value or more, an analysis unit that collects and analyzes usage histories of a function of the mobile terminal apparatus, and a setting unit that, when the detected temperature is the predetermined value or more, refers to an analysis result of the usage histories, and when the function tends to be used for a predetermined usage time period or more, sets an operation mode of the function to a first mode in which an action performed by the function is restricted, and when the function tends to be used for less than the predetermined usage time period, sets the operation mode to a second mode in which the action performed by the function is not restricted.
    Type: Application
    Filed: May 7, 2014
    Publication date: December 25, 2014
    Applicant: FUJITSU LIMITED
    Inventor: Yoshinori TOKUDA
  • Publication number: 20140376005
    Abstract: An imaging device includes: an imaging element that take an image of a subject; and a plurality of light sources that radiate a light to the subject, wherein optical axes of the plurality of the light sources are inclined outward with respect to an optical axis of the imaging element.
    Type: Application
    Filed: September 11, 2014
    Publication date: December 25, 2014
    Applicant: FUJITSU LIMITED
    Inventor: Takahiro Aoki
  • Publication number: 20140376503
    Abstract: A method used in a communication system including a base station and a terminal, the method includes: transmitting from the base station to the terminal a control channel with use of a control channel format selected from among a plurality of control channel formats, each including modulation scheme information, according to whether Multiple Input Multiple Output (MIMO) transmission is applied or not, and receiving the control channel by the terminal, wherein a number of bits indicating a modulation scheme included in a control channel format to be selected when the MIMO transmission is applied is greater than that included in a control channel format to be selected when the MIMO transmission is not applied.
    Type: Application
    Filed: September 9, 2014
    Publication date: December 25, 2014
    Applicant: FUJITSU LIMITED
    Inventor: Hiroyuki SEKI
  • Publication number: 20140377921
    Abstract: An impurity layer is formed in a first region of a semiconductor substrate, a silicon layer is grown on the semiconductor substrate, a tunnel gate insulating film is formed on a first silicon layer of a second region, a first conductor layer is formed on the tunnel gate insulating film, a first silicon oxide film and a silicon nitride film are formed on a second silicon layer, in a reduced pressure state, oxygen and hydrogen are independently introduced into an oxidation furnace to expose the silicon nitride film to active species of the oxygen and active species of the hydrogen to thereby oxidize the silicon nitride film to form a second silicon oxide film, a gate insulating film is formed on the silicon layer of the first region, a second conductor layer is formed on the second silicon oxide film and on the gate insulating film, the second conductor layer and the first conductor layer of the second region are patterned to form a stack gate of a nonvolatile memory transistor, and the second conductor layer a
    Type: Application
    Filed: May 30, 2014
    Publication date: December 25, 2014
    Applicant: FUJITSU SEMICONDUCTOR LIMITED
    Inventors: Taiji Ema, Mitsuaki Hori, Kazushi Fujita, Makoto Yasuda, Katsuaki Ookoshi
  • Publication number: 20140376398
    Abstract: The present invention relates to the field of communications, and in particular to a method and apparatus of uplink interference coordination in a heterogeneous network. The method includes: monitoring uplink channel quality of terminal equipment; acquiring an uplink almost blank subframe when uplink interference appears, with terminal equipment in a Macro cell in the uplink almost blank subframe transmitting at reduced transmission power or no transmission power; and scheduling the terminal equipment subjected to uplink interference on the uplink almost blank subframe to perform uplink communication. With the embodiments of the present invention, interference brought by the uplink data transmission of the terminal equipment of the Macro cell to the uplink reception of the terminal equipment of the Pico cell may be avoided, thereby ensuring the uplink channel quality of the terminal equipment in the Pico cell.
    Type: Application
    Filed: September 8, 2014
    Publication date: December 25, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Zhaojun LI, Lianhai WU, Weiwei WANG, Ningjuan Chang
  • Publication number: 20140379601
    Abstract: A system includes a database configured to store pieces of data each of which corresponds to learning materials; an apparatus configured to: obtain order information defining relationship between a plurality of learning items and learning order for the plurality of learning items, identify which learning item among the plurality of learning items each of the pieces of data relates to, and determine order relation between the pieces of data based on order of each the identified learning item in the order information; and a device configured to access the pieces of data each of which corresponds to the learning materials based on the determined order relation.
    Type: Application
    Filed: June 5, 2014
    Publication date: December 25, 2014
    Applicant: FUJITSU LIMITED
    Inventor: Tetsuro TAKAHASHI
  • Publication number: 20140380298
    Abstract: A software update system includes an administration server, a wireless communication terminal, and a wireless-communication key station. The wireless communication terminal is configured to be connected to the administration server through a communication network. The a wireless-communication key station is configured to be positioned between the administration server and the wireless communication terminal, and to perform processing of distributing software of an update object transmitted from the administration server to the wireless communication terminal.
    Type: Application
    Filed: September 8, 2014
    Publication date: December 25, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Shigemasa MATSUBARA, Katsumi OKUDA, Hajimu HIRAI, Yukio HAYASHI, Yasuaki KAMIMURA, Masahiro MACHIDA, Masashi KUWAHARA, Joji MARUYAMA, Takao ITO, Katsunori HAYASHI
  • Publication number: 20140379983
    Abstract: A storage system includes: a library-apparatus that is configured to store a plurality of portable-recording-media and to write and read data by using the stored portable-recording-media; a storage-apparatus; and a control-apparatus configured to control access to a plurality of logical-volumes by using the storage-apparatus as a first-storage and using a storage-area provided by the plurality of portable-recording-media as a second-storage, wherein, upon receiving a request for copying a first-logical-volume of the plurality of logical-volumes, the control-apparatus copies the first-logical-volume to an unused first-recording-medium included in the plurality of portable-recording media and having the same identification-number as an identification-number of the first-logical-volume, when copying to the first-recording-medium is possible, and selects an unused second-recording-medium from the plurality of portable-recording-media, generates a second-logical-volume in which the identification-number of the fir
    Type: Application
    Filed: June 2, 2014
    Publication date: December 25, 2014
    Applicant: FUJITSU LIMITED
    Inventor: Kazuki Sasaki
  • Publication number: 20140380079
    Abstract: An operation management device that comprises: a memory configured to store, for a plurality of nodes that each operate on one computer out of a plurality of computers included in a computer system and for a plurality of nodes capable of moving between the plurality of computers, operation suspension sequence data of the plurality of nodes, and data of operation suspension times needed for operation suspension of each of the plurality of nodes; and a processor configured to execute a procedure, the procedure comprising: from a timing earlier than suspending operation of the computer system and a timing earlier than a total sum of the operation suspension times of the plurality of nodes or greater, suspending operation of the plurality of nodes in an operation suspension sequence indicated by the operation suspension sequence data.
    Type: Application
    Filed: September 5, 2014
    Publication date: December 25, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Satsuki KATANO, Naohiro Tamura
  • Publication number: 20140375141
    Abstract: A key switch device includes a key top, a switch having a first contact and a second contact and in which a contact state between the first contact and the second contact changes in accordance with a movement distance of the pressed key top, and a control device configured to acquire a signal indicative of the contact state between the first contact and the second contact to determine whether or not the switch is in the on state by comparing a contact state value corresponding to the acquired signal and a threshold value that is arbitrarily set, and to transmit an on signal when determining that the switch is in the on state.
    Type: Application
    Filed: April 22, 2014
    Publication date: December 25, 2014
    Applicant: FUJITSU COMPONENT LIMITED
    Inventor: Takashi NAKAJIMA
  • Publication number: 20140376359
    Abstract: A data communication apparatus forms a mesh network together with at least one gateway includes a frame generating unit and a frame transferring unit. The frame generating unit generates a meter data frame to transmit to a gateway. The meter data frame is a frame including meter data. The frame transferring unit transfers the meter data frame received from another data communication apparatus. The meter data frame is addressed to the gateway. The frame generating unit transmits the meter data frame to which number of alternate routing that indicates number of allowable transmission attempts from a data communication apparatus adjacent to a destination gateway of the meter data frame to the gateway is added. The frame transferring unit changes the number of alternate routing added thereto to a value smaller by 1 than a value that has been set and transits the meter data frame to another data communication apparatus.
    Type: Application
    Filed: September 8, 2014
    Publication date: December 25, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Yosuke NISHIKATA, Koichi ISHIBASHI, Yoshihiko SHIROKURA, Yasuaki KAMIMURA, Yukio HAYASHI, Takahiro KOHARAGI, Kobun NAKAJIMA, Taiji KONDO, Takao ITO, Shinichi HIRATA
  • Publication number: 20140379308
    Abstract: A method of meshing, for use in a computer-aided design (CAD) or computer-aided engineering (CAE) system, includes a procedure of: carrying out in parallel a plurality of CAD meshing processes so as to generate one or more meshes of the said CAD domain, each CAD meshing process of the said plurality being different from the other meshing processes in the said plurality; determining which of the meshes so generated satisfies one or more preset meshing criteria which are indicative of the quality of the mesh; and selecting for use in a subsequent CAD/CAE process one of the generated meshes which satisfies the said one or more preset meshing criteria.
    Type: Application
    Filed: June 16, 2014
    Publication date: December 25, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Serban GEORGESCU, Peter CHOW
  • Publication number: 20140376526
    Abstract: A communication device is provided in a wireless multi-hop network. The communication device includes a receiving unit, a transmission-offset calculating unit, and a transmitting unit. The receiving unit receives a sequence number, a divided time acquired by dividing a time width allocated for transmitting detected usage data by a division number, and the division number. The transmission-offset calculating unit calculates a remainder by dividing the sequence number received by the receiving unit by the division number and calculates a transmission offset time based on the remainder and the divided time. The transmitting unit transmits the usage data based on the transmission offset time calculated by the transmission-offset calculating unit.
    Type: Application
    Filed: September 8, 2014
    Publication date: December 25, 2014
    Applicant: Fujitsu Limited
    Inventors: Yosuke Nishikata, Yoshihiko Shirokura, Naoto Miyauchi, Masahiro Machida, Yukio Hayashi, Tetsuhiro Murata, Yasuaki Kamimura, Hiroaki Tamai, Takafumi Kawakami, Kazuya Takeuchi