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Fujitsu Limited Patents
Assignee:
Fujitsu Limited
Address:
Kawasaki, JP
No. of patents:
21150
Patents:


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Patent Number Title Of Patent Date Issued
7580407 Method and apparatus for forwarding packet August 25, 2009
A packet forwarding apparatus has link aggregation capability and prevents the occurrence of flooding when forwarding a packet to a link of a trunk. The packet forwarding apparatus includes sections for learning the source address and a receiving path of the packet by learning informatio
7580352 Hub apparatus August 25, 2009
A hub apparatus is disclosed that includes plural input ports; a policer unit that monitors the input bandwidth of the input ports and controls acquisition and discarding of input packet data input via the input ports, the policer unit including plural policers assigned to the input
7580348 Communication apparatus, control method, and computer readable information recording medium August 25, 2009
In order to rapidly restoration at a time of fault occurrence without lowering usage efficiency of circuit resources, in a configuration in which a plurality of physical circuits are grouped and communication is carried out with transmission data being distributed, a circuit having t
7580268 Built-in capacitor type power feed device to power pins of electrical component August 25, 2009
A built-in capacitor type power feed device for an electrical component which solves the problems of the reduction in the noise margin of the power supply system accompanying the lower drive voltages of electrical components and the noise between the power supply and ground accompanying
7580265 Heat sink, circuit board, and electronic apparatus August 25, 2009
A heat sink that radiates n exoergic circuit elements mounted on a circuit board includes a housing that has a heat-receiving surface that receives heat from the n exoergic circuit elements, and n+2 fixture parts to each of which a fixture member is attachable, each fixture member co
7580000 Folding dipole antenna and tag using the same August 25, 2009
In a folded dipole antenna, both ends of a first dipole portion with a feeding portion are connected to both ends of a second dipole portion so that a slot portion may be formed, and the first and the second dipole portion have a width for generating a linearly-polarized wave in a slot
7579927 Duplexer August 25, 2009
A duplexer includes: a transmission filter and a reception filter that have different band center frequencies from each other; a phase matching circuit that performs phase matching on the transmission filter and the reception filter; and a laminated package that includes a first layer on
7579872 Low-voltage differential signal driver for high-speed digital transmission August 25, 2009
A low-voltage differential signal driver for high-speed digital transmission includes a first converter operable to receive a signal in a first type and convert the signal into a second type, wherein a resistance of the first converter is variable. A second converter couples to the f
7579761 Piezoelectric thin-film resonator and filter August 25, 2009
A piezoelectric thin-film resonator includes: a lower electrode that is formed on a substrate; a piezoelectric film that is formed on the lower electrode; and an upper electrode that is formed on the piezoelectric film. In the piezoelectric thin-film resonator, the upper electrode has a
7579553 Front-and-back electrically conductive substrate August 25, 2009
A front-and-back electrically conductive substrate includes a plurality of posts composed of a material that can be anisotropically etched and having an electrically conductive portion that has at least a first surface and a second surface that communicate with each other, and an ins
7579296 Broad band light absorbing photocatalyst, process for producing thereof, broad band light absorb August 25, 2009
The present invention provides a broad band light absorbing photocatalyst which has a high absorptivity not only for visible light but also, in particular, for ultraviolet light, exhibits photocatalytic activity in response to a broad band light over a long period, has a high adsorpt
7579251 Aerosol deposition process August 25, 2009
A circuit substrate includes a passive element and an interconnection pattern, wherein any of the passive element and the interconnection pattern is formed by an aerosol deposition process that uses aerosol of a fine particle material.
7577946 Program product, method, and system for testing consistency of machine code files and source fil August 18, 2009
A consistency test program which facilitates the user to check whether a compiled machine code file reflects all modifications made to its source file. When a source code is compiled into a machine code, a source file attribute record is produced from file attributes of the source file a
7577894 Apparatus and method for judging the legitimacy of transfer data August 18, 2009
When a plurality of data blocks are divided into a plurality of frames and the divided frames are transmitted, every time a frame is received, a interim calculation result of a check code is updated using a transitional calculation result of the check code of the data block correspon
7577873 Transmission apparatus August 18, 2009
A transmission apparatus has a main signal processing device, a monitor control part and an intermediating part to intermediate addresses and data between the monitor control part and the main signal processing device. The transmission apparatus further has a first switching part to
7577732 Information distribution service providing system August 18, 2009
An information provider instructs a server system of an information distribution region and attributes of service users, monitors, based upon position information from service users, the state of distribution of service users who have the above-mentioned attributes and are present in
7577368 Optical communication apparatus and optical add/drop apparatus August 18, 2009
An apparatus comprising an optical modulator modulating a light in accordance with a modulation signal and an operating point of the optical modulator, to thereby output a modulated optical signal; and a controller controlling the operating point in accordance with a branched portion of
7577366 Selectable dispersion enhancement August 18, 2009
A dispersion compensation system includes a dispersion compensation module and a dispersion enhancement module. The dispersion compensation module receives optical input and provides optical output having a negative dispersion relative to the optical input. The dispersion enhancement
7577361 Optical network system and optical coupling apparatus August 18, 2009
In the optical network system, light input to any of the optical input ports of the optical coupler is converted into light at another wavelength via a variable-wavelength optical receiver and an optical sender, and is then reinput to the optical coupler. This arrangement makes it po
7577355 Optical path cross-connect and optical wavelength multiplexing diversity communication system us August 18, 2009
A protection system protects paths of internetwork communication between WDM ring networks, and includes a plurality of optical wavelength multiplexing networks having a plurality of nodes and a network management system for monitoring conditions of the plurality of nodes. The nodes
7577105 Cooperation information managing apparatus and gateway apparatus for use in cooperation informat August 18, 2009
In a system including a first unit retaining a first identifier and a second unit retaining a second identifier for reading out the first identifier from the first unit to transmit, as cooperation information, a combination of the first identifier and the second identifier, for manag
7577098 Device and method for network monitoring August 18, 2009
A network monitoring device that monitors a network state, includes a receiving unit that receives a packet passing through the network; a processing unit that performs analysis of the network state with respect to the packet received; and a determining unit that determines whether a
7576997 Backplane extension apparatus and method August 18, 2009
A method and apparatus for adapting a backplane from one type of connector to another type of connector is disclosed. The method includes providing a backplane with a plurality of connectors, each connector being of a first type of connector, providing at least one extension module havin
7576935 Apparatus for recording and regenerating data August 18, 2009
In an apparatus for recording and regenerating data, a pass metric is calculated based on a likelihood converted from a previous calculation result iteratively until all pass metrics of the same data recorded many times on a recording medium are calculated, and then data recorded on the
7576728 Apparatus for generating mesh data, computer-readable recording medium in which mesh data genera August 18, 2009
In order to efficiently generate mesh data to be used for application of structural analysis to an object formed by uniting a plurality of elements in which data elements are automatically connected without manual operation, an apparatus for generating mesh data includes an edge extr
7576652 Method and apparatus for estimating a position of detected goods and controlling movement/swingi August 18, 2009
Information is stored in an RFID provided to a goods conveyed by a conveying apparatus and from which information is readable in a noncontact manner. A presence detection sensor that detects the presence of the goods conveyed by the conveying apparatus; a reader that reads the inform
7576567 Low-voltage differential signal driver for high-speed digital transmission August 18, 2009
A low-voltage differential signal driver for high-speed digital transmission includes a first converter operable to receive a signal in a first type and convert the signal into a second type, and a cascode current mirror coupled to the first converter. The cascode current mirror prov
7575787 Liquid crystal composition, liquid crystal display element using the same, and electronic paper August 18, 2009
The invention has an object to provide a liquid crystal composite capable of sufficiently reducing the scattering of light in a focal conic state, a liquid crystal display element excellent in improvements of a color balance and a contrast, and electronic paper using the same. The conten
7575442 Multilayer wiring substrate August 18, 2009
A first wiring pattern formed on a first layer of a multilayer wiring substrate, a second wiring pattern formed on a layer different from the first layer on which the first wiring pattern is formed, a penetration hole penetrating the front surface and the back surface of the substrate,
7575176 Tag access control system, tag access control method and recording medium storing tag access con August 18, 2009
A tag access control system for controlling data communication between a plurality of reader/writers respectively having a plurality of antennas and one or more IC tags moving sequentially through communication ranges of the plurality of antennas includes a storing portion for storing
7574730 Device and system for reducing confluence noise August 11, 2009
A system for reducing noise in a signal line, through which upward signals and downward signals are transmitted between a center and terminals, includes a noise-reduction device provided between the center and the terminals. The noise-reduction device attenuates the upward signals by an
7574684 Design data creating method, design data creating apparatus and computer readable information re August 11, 2009
A design data creating method, for creating design data to which predetermined design constraint requirements are added, includes a display data converting step of converting input design constraint requirements into display data for displaying on a design drawing displayed on a disp
7574658 State display apparatus, management system and computer-readable recording medium in which progr August 11, 2009
A state display apparatus includes a function data obtaining section to obtain function data concerning a function of possessed by the electronic device through the communication network; a state data obtaining section to obtain state data indicating the state of the electronic device
7574561 Method and apparatus for storing a data to memory devices August 11, 2009
A method and apparatus for enhancing performance of parity check in computer readable media is provided. For example, in a RAID (N+1) configuration, a virtual data strip is added for a calculation of parity. Data of the virtual data strip is set so that a predetermined portion of a d
7574522 Communication data relay system August 11, 2009
A technology in a relay system for relaying communication data between a plurality of domains by an address translation, is capable of executing, even when there are both streams of inter-domain and intra-domain communications, the communications with security ensured without setting
7574189 Transmitter and power amplifying method August 11, 2009
A transmitter includes a first limiter for performing a first clipping in which an amplitude part at a level higher than an amplitude level based on a first clipping level is cut out from an input signal to be subjected to power amplification, a second limiter for performing a second cli
7574083 Optical device having diffraction gratings coupling guided wave, and its manufacture method August 11, 2009
An optical waveguide structure formed over a substrate defines an optical waveguide for guiding light along a direction parallel to the substrate surfaces, and biasing a light intensity distribution of transverse modes of guided wave toward a first side of the optical waveguide path. A m
7573934 Spread spectrum rake receiver August 11, 2009
Even when the number of paths is increased, interfering noises can be effectively reduced by a rake receiver for use in a spread spectrum communication system. The rake receiver includes a timing detecting unit detecting a reception timing t.sub.i (i=1 to N) of each of N paths when d
7573898 Method and apparatus to double LAN service unit bandwidth August 11, 2009
A LAN Service Unit (LANSU) backplane extender provides an inexpensive way to increase LANSU backplane bandwidth so that the performance degradation that may otherwise result can be avoided. A system having increased LANSU bandwidth comprises a backplane including a plurality of data traf
7573808 Smart resync of data between a network management system and a network element August 11, 2009
Network recovery of multiple NEs, such as at NMS restart, or at re-establishment of communication after loss of communication with the NMS that provides reduced cost and reduced the elapsed time before the NMS can start performing network monitoring. A method of recovering data from
7573794 Data defect detection using soft decision result August 11, 2009
A defect detection device, apparatus, and method for detecting a defect of data recorded on a recording medium. The defect detection device includes a waveform state detection part generating information representing a state of a waveform of a reproduced signal from the recording medium
7573775 Setting threshold voltages of cells in a memory block to reduce leakage in the memory block August 11, 2009
In one embodiment, a memory block includes one or more bit lines that each include two or more cells. Each cell in each bit line has a distance from a sense amplifier coupled to the bit line, and each of one or more of the cells in each of one or more of the bit lines has a delay particu
7573718 Spacer, printed circuit board, and electronic equipment August 11, 2009
The spacer is formed as an elastic member with no ends thereof, which is detachably attached, by exploiting its elastic deformation, onto a printed wiring board to which is fixed an electronic component having a component package, on one of whose surfaces connection terminals are arr
7573354 Duplexer and ladder type filter August 11, 2009
A duplexer includes an antenna terminal, a first filter connected to the antenna terminal, and a second filter connected to the antenna terminal. At least one of the first filter and the second filter is a ladder type filter in which a parallel resonator and multiple series resonators ar
7573178 Acoustic wave device, resonator and filter August 11, 2009
An acoustic wave device includes a piezoelectric substrate, comb electrodes formed above the piezoelectric substrate, and a first dielectric film provided so as to cover the comb electrodes, the first dielectric film having empty spaces associated with fingers of the comb electrodes.
7573079 Field effect type semiconductor device August 11, 2009
A field effect type semiconductor device is disclosed wherein a channel is easily depleted just under a gate electrode to implement an E-mode, but a channel is hard to be depleted just under a gate recess region so that the transconductance gm and the cutoff frequency f.sub.T can be set
7573060 Optical semiconductor device having active layer of p-type quantum dot structure and its manufac August 11, 2009
An active layer having a p-type quantum dot structure is disposed over a lower cladding layer made of semiconductor material of a first conductivity type. An upper cladding layer is disposed over the active layer. The upper cladding layer is made of semiconductor material, and includ
7572350 Method of cutting laminate, apparatus for manufacturing laminate, method of manufacturing lamina August 11, 2009
A device such as an MEMS device is fabricated by cutting a laminate of a semiconductor substrate and a glass substrate. Grooves are formed in the glass substrate, and the semiconductor substrate and the glass substrate are laminated together such that the groove faces the semiconductor
7572070 Optical device and manufacturing method thereof August 11, 2009
The present invention is an optical device achieving miniaturization, functional integration, and cost reduction, and comprises an optical element chip, an optical fiber assembly comprised of an optical fiber, a first ferrule, and a second ferrule, a package containing and enveloping
7571653 Stress measuring method and system August 11, 2009
An energy beam is applied to an evaluation region of a sample, a phase distribution image of the energy beam transmitted to the sample in the evaluation region is obtained, and the obtained phase distribution image is analyzed, whereby a stress distribution in the evaluation region is
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