Patents Assigned to Fujitsu
  • Patent number: 7714429
    Abstract: A semiconductor device that reduces the size and cost of functional macro chips used in a chip-on-chip configuration. Functional macro chips each include a macro region. The macro regions are formed adjacent to one another. A pad region for testing the functional macro chips is formed surrounding the macro regions.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: May 11, 2010
    Assignee: Fujitsu Microelectronics Limited
    Inventors: Shouji Sakuma, Yoshiyuki Ishida
  • Patent number: 7715711
    Abstract: In accordance with the teachings of the present invention, wavelength selective switch (WSS) design configurations for mesh light-trails are provided. In a particular embodiment, a node included in an optical network comprises a first light access unit operable to add or drop local traffic and a first WSS assembly communicatively coupled to the first light access unit and comprising at least four WSSs, at least two input ports, and at least four output ports, the four WSSs configured to direct any input traffic in any wavelength received at one of the input ports to the first light access unit and/or to any of the output ports.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: May 11, 2010
    Assignee: Fujitsu Limited
    Inventor: Ashwin A. Gumaste
  • Patent number: 7716746
    Abstract: A controller in a hard disk serving as a data storage device stores a license including a content key for decrypting encrypted content data E and others in a secure data storage portion. The license is managed in the secure data storage portion in accordance with a LBA, and the LBA for storing the license, which is being processed for transmission, is stored as a log in a log memory of the secure data storage portion. When a failure occurs during the transmission processing, the license, which was being processed for transmission, is specified based on the LBA stored in the log memory.
    Type: Grant
    Filed: March 4, 2003
    Date of Patent: May 11, 2010
    Assignees: Sanyo Electric Co., Ltd., Sharp Kabushiki Kaisha, Victor Company of Japan, Pioneer Corporation, Hitachi, Ltd., Fujitsu Limited
    Inventors: Yoshihiro Hori, Ryoji Ohno, Takeo Ohishi, Akihiro Tozaki, Kenichiro Tada, Tatsuya Hirai, Masafumi Tsuru, Takayuki Hasebe
  • Patent number: 7716373
    Abstract: Current configuration information of an information processing apparatus, post configuration information after updating a software, configuration information of a network device are stored in a database. A selection of a software image for updating the software of the information processing apparatus and a change of a configuration of the network device are considered, based on the pieces of configuration information. An automation of an operation of updating the software is realized by sending a result of consideration to an agent deployed in the information processing apparatus and causing the information processing apparatus to perform a desired processing.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: May 11, 2010
    Assignee: Fujitsu Limited
    Inventors: Seishiro Hamanaka, Yoshinobu Hibi, Masayuki Naitou, Shigehiro Yoshikawa, Satoshi Iyoda
  • Patent number: 7715719
    Abstract: In accordance with the teachings of the present invention, a system and method for transmitting traffic in a plurality of passive optical networks (PONs) is provided. In a particular embodiment, a method for transmitting traffic in a plurality of passive optical networks (PONs) includes transmitting traffic at a first wavelength and at a second wavelength from an optical line terminal (OLT). The method also includes combining the traffic in the first wavelength and the traffic in the second wavelength and splitting the combined traffic into a plurality of copies. The method further includes forwarding a first copy to a first wavelength router at a first distribution node and forwarding a second copy to a second wavelength router at a second distribution node, wherein the first wavelength router is coupled to a first set of optical network units (ONUs) and the second wavelength router is coupled to a second set of ONUs.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: May 11, 2010
    Assignee: Fujitsu Limited
    Inventors: Martin Bouda, Takao Naito
  • Patent number: 7716256
    Abstract: An information navigation system for supporting browsing of data which are linked mutually includes an starting point determination supporter, a browsing supporter, and a positioning supporter. The starting point determination supporter supports detection of first data being a starting point for an information navigation. The browsing supporter displays the first data and second data linked to the first data as in a virtual space, to allow a user to select data to be browsed next. The positioning supporter displays a current browsing position on a map which indicates a relation between all data.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: May 11, 2010
    Assignee: Fujitsu Limited
    Inventors: Susumu Endo, Takayuki Baba, Shuichi Shiitani, Yusuke Uehara, Daiki Masumoto
  • Patent number: 7716033
    Abstract: A web load test program to display information about responses acquired by applying access load on a web server device as a test target is provided. The program generates a plurality of virtual web clients each of which transmits a request message to the web server device and receives a response message from the web server device in order according to a given scenario. The program stores a log information record containing an ID of the virtual web client that receives a response message and order information that shows an order of the request in the scenario corresponding to the response message into storage whenever the virtual web client receives a response message from the web server device. The program sorts the log information records that are linked with the respective response messages according to a predetermined sort condition and displays the sorted log information records onto a display.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: May 11, 2010
    Assignee: Fujitsu Limited
    Inventors: Tooru Higeta, Masayuki Ito, Koutarou Matsuo
  • Patent number: 7715631
    Abstract: An apparatus for extracting feature information from each of a plurality of electronic documents that constitutes a group of documents, for each of a plurality of viewpoints includes an extracting unit that extracts feature information from each of the electronic documents for each of the viewpoints, a calculating unit that calculates a score for each of the viewpoints with respect to the feature information that is extracted from more than one viewpoint, and a determining unit that determines the viewpoint for the feature information that is extracted from more than one viewpoint, based on the score calculated.
    Type: Grant
    Filed: October 27, 2004
    Date of Patent: May 11, 2010
    Assignee: Fujitsu Limited
    Inventors: Kazunari Tanaka, Isamu Watanabe, Hiroyuki Hatta, Nobuyuki Hiratsuka
  • Patent number: 7716520
    Abstract: A multi-CPU computer which is capable of positively performing error handling, and restarting a system even when a fatal error has occurred in a CPU. When a hardware error has occurred in a first CPU, error information is notified to a second CPU by a first error notification circuit of the first CPU. Then, the error information notified from the first CPU is obtained by a second error notification circuit of the second CPU, and error handling based on the error information is requested of an operating system. The second CPU executes a process for storing fault information including the error information in a storage device and a process for restarting the system, according to the operating system.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: May 11, 2010
    Assignee: Fujitsu Limited
    Inventors: Ryo Tabei, Hiroshi Kondo
  • Patent number: 7716431
    Abstract: An information processing method according to this invention is a method executed when one or a plurality of applications are executed in an arbitrary node in a computer system including a plurality of nodes, which comprises: obtaining data representing an execution state of an application for the plurality of nodes; calculating a used capability value for each application by using the data representing the execution state of the application and a capability value for each node; obtaining data representing an application usage frequency of each user for the plurality of nodes; calculating a usage ratio of each user for each application by using the data representing the application usage frequency; and calculating a ratio of the used capability value for the total capability value of the computer system for each user and each application by using the used capability value and the usage ratio.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: May 11, 2010
    Assignee: Fujitsu Limited
    Inventor: Kenji Hayamatsu
  • Patent number: 7715724
    Abstract: The phase modulation in which the frequency chirp becomes 0 at the timing which the user wants to synchronize, and the frequency chirp becomes larger as the time deviates in a positive or negative direction from this timing is applied to the signal light with each wavelength comprising pulse train of different timing. Thus, the optical pulses which deviate from the timing which the user wants to synchronize receive the frequency chirp in accordance with the amount of the timing deviation. The WDM signal light which has been chirped in this way is made to pass a linear dispersive medium, and the dispersion fit for the amount of frequency chirp is made to be given. By adjusting the amount of dispersion, it is possible to obtain the pulses which conform to the timing at which the user wants to synchronize the pulses of each wavelength.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: May 11, 2010
    Assignees: Fujitsu Limited
    Inventors: Shigeki Watanabe, Masataka Nakazawa
  • Patent number: 7712972
    Abstract: The present invention relates to an optical receptacle which prevents the occurrence of a large impact by collision of a plug body with an optical propagation member. The optical receptacle includes a solid sleeve having a cavity hole into which the plug body is inserted from its one end side and which has an even inner diameter so as not to substantially define a gap with respect to an outer diameter of the plug body and an optical propagation member fixedly secured to the other end side of the cavity hole, with the solid sleeve being formed such that a length from an end portion of the cavity hole on the plug body insertion side to the optical propagation member is longer than a maximum length of extension due to the elastic body of the terminal member.
    Type: Grant
    Filed: July 18, 2007
    Date of Patent: May 11, 2010
    Assignee: Fujitsu Limited
    Inventor: Nobuaki Mitamura
  • Patent number: 7716416
    Abstract: A tag storing unit stores, in a plurality of entries, a plurality of tags corresponding to a plurality of addresses, a parity bit of each of the tags, and a reverse bit obtained by reversing the parity bit. A data storing unit stores a plurality of data corresponding to the tags in a plurality of entries. A comparing unit compares an address for search with a tag of each of the entries. A determining unit performs an OR-operation on contents stored in a plurality of entries when a multiple hit occurs from a comparison by the comparing unit, and determines a cause of the multiple hit based on a parity bit and a reverse bit obtained after the OR-operation.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: May 11, 2010
    Assignee: Fujitsu Limited
    Inventor: Takuma Chiba
  • Patent number: 7715388
    Abstract: A message-type determining unit determines whether an IGMP message received from a user terminal is a join message. A table controlling unit determines that a connection needs to be established when receiving a join message from a user terminal. The table controlling unit determines that a connection needs to be removed when all the user terminals have left a multicast group. A CID obtaining unit obtains the CID of a connection to be established or removed. A C control-message generating unit generates a C control message to request connection establishment or connection removal. A C control-message transmitting unit sends the C control message to an OLT.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: May 11, 2010
    Assignee: Fujitsu Limited
    Inventor: Masato Okuda
  • Patent number: 7716390
    Abstract: A direct memory access controller is provided, in which an internal storage section storing control setting information; and a control section loading the control setting information from an external storage section to the internal storage section when a transfer request signal does not belong to a first group, and not loading the control setting information from the external storage section to the internal storage section when the transfer request signal belongs to the first group; are included, and a data transfer by a direct memory access is performed in accordance with the control setting information within the internal storage section.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: May 11, 2010
    Assignee: Fujitsu Microelectronics Limited
    Inventors: Koji Takenouchi, Seiji Suetake
  • Patent number: 7714557
    Abstract: According to an embodiment, a DC-DC converter comprises: an error amplifier that receives a soft start signal and amplifies a difference between an output voltage signal and a reference voltage signal; a PWM control circuit that controls ON and OFF states of a first switching transistor and a second switching transistor based on the output of the error amplifier; a frequency divider that divides a frequency signal and outputting a divided frequency signal; an accumulator that performs an adding operation based on the divided frequency signal and a control signal; and a DA converter that generates the soft start signal based on an output of the accumulator.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: May 11, 2010
    Assignee: Fujitsu Microelectronics Limited
    Inventor: Morihito Hasegawa
  • Patent number: 7714772
    Abstract: A transmit-receive FM-CW radar apparatus according to one mode of the invention comprises: a mixer for downconverting an IF signal; a switch provided on the input side of the mixer; and a switch controller for controlling the switch on and off in different modes and selecting the IF signal in the different modes for supply to said mixer. A transmit-receive FM-CW radar apparatus according to another mode of the invention comprises: a mixer for downconverting an IF signal; a switch for turning on and off a local signal to be supplied to the mixer; and a switch controller for controlling the switch on and off in different modes and selecting the local signal in the different modes for supply to the mixer.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: May 11, 2010
    Assignee: Fujitsu Ten Limited
    Inventor: Masayoshi Shono
  • Patent number: 7715492
    Abstract: A transmitter includes a time/frequency-domain converter that converts a time-domain data signal to a frequency-domain data signal of a fixed number; a subcarrier allocator that allocates the obtained frequency-domain data signal to any of subcarriers, the number of which exceeds the fixed number, the subcarriers being allocated in a predetermined transmission frequency band; and a controller that controls the subcarrier allocator to allocate signals other than the data signal to subcarriers in an idle band to which the data signal is not allocated. By this, without the need for a plurality of time/frequency-domain conversion circuits with a large size, such as DFTs, frequency utilization efficiency (data transmission efficiency) is improved.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: May 11, 2010
    Assignee: Fujitsu Limited
    Inventor: Hiroyuki Seki
  • Patent number: 7714613
    Abstract: A level converter includes a cross-coupled section for holding data and a first switching section connected in series with the cross-coupled section and supplied with a differential input signal. The level converter has a second switching section, a current mirror connection section, a third switching section, and an input/output matching evaluation section. The second switching section is connected in parallel with the cross-coupled section, and the current mirror connection section is connected in a current-mirror configuration with a transistor in the second switching section. The third switching section is connected in series with the current mirror connection section, and the input/output matching evaluation section is used to control a transistor in the third switching section by receiving the input signal and an output node signal.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: May 11, 2010
    Assignee: Fujitsu Microelectronics Limited
    Inventor: Toshihiko Mori
  • Patent number: 7715617
    Abstract: A semiconductor integrated circuit includes a check unit which compares a value of a pixel of interest with values of neighboring pixels contained in an image signal supplied from an image sensor, and determines based on the comparison whether the pixel of interest is defective, and a defect correcting unit which corrects the value of the pixel of interest by using values of surrounding pixels in response to the determination by the check unit that the pixel of interest is defective.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: May 11, 2010
    Assignee: Fujitsu Microelectronics Limited
    Inventors: Shigeru Nishio, Hiroshi Daiku, Asao Kokubo