Patent application number | Description | Published |
20080239469 | GAIN CONTROL APPARATUS, OPTICAL TRANSMISSION APPARATUS, GAIN CONTROL METHOD FOR OPTICAL AMPLIFIER, AND WAVELENGTH MULTIPLEX OPTICAL TRANSMISSION SYSTEM - The present invention relates to an apparatus for controlling a gain of an optical amplifier, and the apparatus comprises a target gain calculating unit for calculating, as a target gain for an optical amplifier, a value obtained by increasing or decreasing a gain (output) of signal light as the number of wavelengths of wavelength-multiplexed signal light decreases, and a control signal outputting unit for outputting a control signal to the optical amplifier so as to amplify the wavelength-multiplexed signal light with the target gain calculated by the target gain calculating unit. This promptly suppresses a fluctuation of signal light level, particularly, a fluctuation of output light power of an optical amplifier stemming from a variation of the number of wavelengths of wavelength-multiplexed signal light. | 10-02-2008 |
20080239470 | INDIVIDUAL BAND GAIN EQUALIZER FOR OPTICAL AMPLIFIERS - A control apparatus comprises a light monitoring unit for dividing a signal wavelength band into at least a band in which output light power of an optical amplifier tends to decrease at an decrease in the number of signal wavelengths and a band including a gain deviation band, and for monitoring inputted light power for the individual divided bands, a calculation unit for obtaining the number of signal wavelengths in the individual divided bands based on a monitor result, and a target gain correction unit for correcting a target gain based on a result of the calculation. This suppresses a transient variation of signal light level due to SHB or SRS at a high speed with a simple configuration without deteriorating noise characteristic, thus enabling optical amplifiers to be further disposed in a multi-stage fashion, which can lengthen the transmission distance of a transmission system including an optical add/drop unit. | 10-02-2008 |
20080310011 | Optical Surge Suppressive Type Optical Amplifier - According to an optical surge suppressive type optical amplifier in the present invention, for a WDM optical amplifier having a multi-stages amplification configuration in which a plurality of optical amplifying means is connected in series, an optical amplifying medium capable of causing a homogeneous up-conversion (HUC) phenomenon is applied to the optical amplifying means on the signal light output side, so that an optical surge is suppressed utilizing the degradation of gain efficiency by the HUC caused at the time when the input power is decreased. Further, for a one wave optical amplifier, an optical amplifying medium capable of causing a pair induced quenching (PIQ) phenomenon is applied to the optical amplifying means on the signal light input side, so that the optical surge is suppressed utilizing the degradation of output power efficiency by the PIQ caused at the time when the input power is increased. As a result, it is possible to provide a low cost optical amplifier capable of effectively suppressing the optical surge without leading the complexity of control circuit or optical circuit configuration. | 12-18-2008 |
20090219609 | Optical amplifier provided with control function of pumping light, and optical transmission system using the same - In an optical transmission system according to one aspect of the present invention, for transmitting a WDM light from a transmission station to a reception station, utilizing a Raman amplifier, the Raman amplifier comprises: an optical amplification medium; a pumping light source generating a plurality of pumping lights having wavelengths different from each other; an optical device introducing the plurality of pumping lights to the optical amplification medium; and control means for controlling the pumping light source, the transmission station sends out a plurality of reference lights having wavelengths at which respective Raman gain obtained by the plurality of pumping lights reach peaks or wavelengths close to the above wavelengths, and the control means controls the plurality of pumping lights based on the optical powers of the plurality of reference lights. Thus, it becomes possible to accurately manage the optical power balance of the WDM light and the optical power of the entire WDM light. | 09-03-2009 |
20090297143 | Optical transmission apparatus and optical attenuation amount control method - In an optical transmission apparatus, levels of signal lights obtained by demultiplexing a WDM signal and corresponding to channels are detected, based on which a channel in which a signal is transmitted and a channel in which no signal is transmitted are determined. An attenuation amount of a channel in which no signal is transmitted in a predetermined range from the channel in which the signal is transmitted is set to a value equal to an attenuation amount of the channel in which the signal is transmitted. An attenuation amount of a channel in which no signal is transmitted out of the predetermined range from the channel in which the signal is transmitted is set to a value larger than the attenuation amount of the channel in which the signal is transmitted. The signal lights are attenuated based on the values and multiplexed. | 12-03-2009 |
20100157416 | Optical amplifier provided with control function of pumping light, and optical transmission system using the same - In an optical transmission system according to one aspect of the present invention, for transmitting a WDM light from a transmission station to a reception station, utilizing a Raman amplifier, the Raman amplifier comprises: an optical amplification medium; a pumping light source generating a plurality of pumping lights having wavelengths different from each other; an optical device introducing the plurality of pumping lights to the optical amplification medium; and control means for controlling the pumping light source, the transmission station sends out a plurality of reference lights having wavelengths at which respective Raman gain obtained by the plurality of pumping lights reach peaks or wavelengths close to the above wavelengths, and the control means controls the plurality of pumping lights based on the optical powers of the plurality of reference lights. Thus, it becomes possible to accurately manage the optical power balance of the WDM light and the optical power of the entire WDM light. | 06-24-2010 |
Patent application number | Description | Published |
20080222110 | DESIGN METHOD AND RECORDING MEDIUM - A method executed by a computer includes searching a design subject having similar attribute information from attribute information on a design subject designed in the past and histories of descriptions of improvements based on input information on a design subject;, obtaining a description of an improvement on the searched design subject having similar attribute information from the histories, obtaining a design subject the description of an improvement of which has an effect of the improvement, and outputting improved input information, wherein the attribute information contributing to the improvement of the design subject is obtained and reflected in the input information, and the history of the improved input information is stored. | 09-11-2008 |
20100088072 | SUPPORTING APPARATUS, DESIGN SUPPORTING METHOD AND RECORDING MEDIUM - A method and system of supporting design includes extracting basic shape data associated with CAD model data, extracting know-how data associated with the basic shape data, and associating the model data and the know-how data with each other and setting a degree of association between the model data and the know-how data. | 04-08-2010 |
20120042235 | DESIGN SUPPORT APPARATUS, DESIGN SUPPORT METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM STORING DESIGN SUPPORT PROGRAM - A design support apparatus includes a search unit configured to refer to a first database including annotation information pieces added to a first product model and site identification information pieces associated with the annotation information pieces, respectively, and to search, in a second product model, a second site corresponding to a first site identified by the site identification information piece. Each of the site identification information pieces is for identifying the first site to which the associated annotation information piece is added in the first product model. The apparatus further includes a placement unit configured to place the annotation information piece associated with the corresponding site identification information piece at the second site when the search unit determines that the second site exists in the second product model. | 02-16-2012 |
20130073264 | DESIGN SUPPORT APPARATUS, DESIGN SUPPORT METHOD, AND COMPUTER-READABLE STORAGE MEDIUM STORING DESIGN SUPPORT PROGRAM - A design support apparatus includes a determination unit configured to determine, using a line segment serving as a reference, start and end points of which are each defined by a relative position to a predetermined shape appearing in a cross-section of a design object for which clearance measurement is performed, a line segment satisfying a predetermined condition in relation to the line segment serving as the reference, out of line segments appearing in a cross-sectional view created based on shape data of the object, as a first line segment including a start point of a spot for clearance measurement, and an identification unit configured to identify, using a vector specifying a direction of clearance measurement, a clearance between the first line segment determined by the determination unit and a second line segment existing in a direction of the vector from the first line segment, as a measurement spot. | 03-21-2013 |
20140088931 | COMPUTER PRODUCT, VERIFICATION SUPPORT METHOD, AND VERIFICATION SUPPORT APPARATUS - A computer-readable recording medium stores a verification support program that causes a computer to execute a process that includes generating based on design information expressing an object, component information indicating components of the object, the components indicated correspond to a shape to which a design rule concerning positional relation applies and for at least one of the components, a number of vertices of the component is reduced; calculating based on the generated component information, information indicating a positional relation between the components; determining whether the calculated information indicating the positional relation meets a condition prescribed by the design rule; and outputting a determination result. | 03-27-2014 |
Patent application number | Description | Published |
20120311042 | DISTRIBUTION METHOD AND DISTRIBUTION SYSTEM - A distribution method is performed in a distribution system including a distribution source device for distributing data and a plurality of distribution destination devices. The distribution method includes searching, by the distribution source device, for the distribution destination devices by expanding a search range by plural stages; executing in each stage, by the distribution source device, an allowance process of allowing distribution of the data to the distribution destination devices found by searching in each stage; detecting in a predetermined range, by the distribution destination device, another distribution destination device that has acquired the data before the distribution destination device performing the detecting; and executing, by the distribution destination device, an acquiring process of acquiring the data from the other distribution destination device, according to allowance of distribution. | 12-06-2012 |
20140380298 | WIRELESS COMMUNICATION TERMINAL, SOFTWARE UPDATE SYSTEM, AND SOFTWARE UPDATE METHOD - 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. | 12-25-2014 |
Patent application number | Description | Published |
20120133255 | APPARATUS ON WHICH FAN CAN BE MOUNTED - An apparatus on which a fan can be mounted, including a casing; a plurality of cooling fan units arranged in line on a lower portion of the casing and capable of being inserted into and removed from the casing on an individual basis; and a plurality of plate members disposed above the line in which the cooling fan units are arranged and above a gap between the cooling fan units, the plate members extending in a direction to which an upper surface of each of the cooling fan units is substantially perpendicular and in which the cooling fan unit is inserted into and removed from the casing, wherein each of the plate members is supported so as to be able to pivot about its lower end portion toward both directions. | 05-31-2012 |
20130003327 | PLUG-IN UNIT - A plug-in unit includes: a printed circuit board on which a connector is mounted; and a cover in which the printed circuit board is accommodated; wherein the cover allows the connector to be exposed when the plug-in unit is inserted into a housing and to be covered when the plug-in unit is in a standalone state in which the plug-in unit is not inserted into the housing. | 01-03-2013 |
20130170138 | ELECTRONIC DEVICE HAVING COOLING UNIT - There is provided an electric device configured to cool a plurality of plug-in units, the electric device including a plurality of slots, each slot configured to install a plug-in unit, a first fan configured to create a current of air for cooling the plug-in units, a first plug-in unit installed into a first slot, and a second plug-in unit including a second fan configured to create a current of air for cooling the first plug-in unit, the second plug-in unit being installed into a second slot adjacent to the first slot, arranged to a side of mounting component of the first plug-in unit. | 07-04-2013 |
20140161558 | SPRUNG WASHER AND FIXING DEVICE - A fixing-device that fixes a second member to be fastened to a first member to be fastened, the fixing-device includes, a base fixed to the first member to be fastened, a sprung-washer attached to the base and interposed between the base and the second member to be fastened, and a fastener that fastens the second member to be fastened and the base to each other, wherein the sprung-washer includes a threaded-portion insertion-hole into which a threaded-portion of the fastener is inserted, an edge-portion that is formed around the threaded-portion insertion-hole, and with which a pressing-portion provided in the fastener comes into contact and that is thereby pressed when the fastener is tightened, and a leaf-spring that extends from the edge-portion forward in a direction in which the fastener is inserted into the threaded-portion insertion-hole and outward, and that has a bent-portion midway along the length of the leaf-spring. | 06-12-2014 |
20140268568 | BOARD UNIT AND ELECTRONIC DEVICE - A board unit includes a board to have an object to be cooled, the object being implemented on the board, a baffle plate to be rotatably coupled to the board and to be displaced to a first rotary position to guide a cooling air, flowing from a first direction to the board, to the object to be cooled and a second rotary position to guide a cooling air, flowing from a second direction to the board, to the object to be cooled, and an arm to be movably attached to the board and also to be rotatably coupled to a rotary end of the baffle plate to displace the baffle plate to the first rotary position and the second rotary position with movement. | 09-18-2014 |
20150055296 | AIR GUIDING STRUCTURE, SUBSTRATE, AND ELECTRONIC DEVICE - An air guiding structure includes a shaft that is provided on a substrate body in an upright manner; a baffle plate coupled to the shaft so as to rotate around the shaft, the baffle plate guiding air that has been introduced into the substrate body; and a rotation restricting member that restricts a rotation of the baffle plate caused by the air that has been introduced. | 02-26-2015 |
Patent application number | Description | Published |
20110063812 | ELECTRONIC DEVICE, METHOD OF MANUFACTURING ELECTRONIC DEVICE, AND ELECTRONIC EQUIPMENT - An electronic device includes a circuit board having a first electrode formed on a main surface thereof, a semiconductor device disposed toward the main surface of the circuit board, the semiconductor device having a second electrode formed on a surface thereof opposed to the main surface, and a connection member electrically connecting between the first and second electrodes. The connection member includes a hollow cylindrical member and a conductive member disposed within the hollow cylindrical member. | 03-17-2011 |
20110147918 | ELECTRONIC DEVICE AND METHOD OF PRODUCING THE SAME - An electronic device includes a wiring board; a semiconductor device arranged at an upper side of the wiring board with an electrically conductive member being arranged therebetween; a covering member arranged at an upper side of the semiconductor device; and a supporting member arranged at a lower side of the wiring board, the supporting member having a convex portion facing the wiring board, the supporting member being connected to the covering member and supporting the wiring board at the convex portion. | 06-23-2011 |
20110299255 | SEMICONDUCTOR DEVICE, METHOD OF MANUFACTURING THE SAME, ELECTRONIC DEVICE, AND ELECTRONIC COMPONENT - A semiconductor device includes: a wiring board including a first electrode pad on a surface thereof; a circuit board disposed to stand on the wiring board, and including an interconnection connected to the first electrode pad; and a semiconductor package disposed to face the wiring board with the circuit board interposed therebetween, and including a second electrode pad on a surface thereof, the second electrode pad being connected to the interconnection. | 12-08-2011 |
20120014068 | ELECTRONIC DEVICE - An electronic device includes an electronic component mounted on a substrate; a cooling system for cooling the electronic component; and a fastening structure for fastening the cooling system to the substrate. The fastening structure includes a first magnet provided to one of the substrate and the cooling system, a second magnetic material fixed to the other of the substrate and the cooling system and magnetically coupled with the first magnet, and a magnetic shield that covers a part or all of the first magnet except for a coupling face to be coupled with the second magnetic material. | 01-19-2012 |
20120176759 | ELECTRONIC DEVICE, INTERPOSER AND METHOD OF MANUFACTURING ELECTRONIC DEVICE - An electronic device includes a wiring board including a first electrode and a second electrode, a semiconductor device mounted on the wiring board and including a first terminal and a second terminal, an interposer provided between the wiring board and the semiconductor device, the interposer including a conductive pad and a sheet supporting the conductive pad, the conductive pad having a first surface on a side of the wiring board and a second surface on a side of the semiconductor device, a first solder connecting the first electrode positioned outside of an area in which the interposer is disposed with the first terminal positioned outside of the area, a second solder connecting the second electrode positioned inside of the area with the first surface of the conductive pad, and a third solder connecting the second terminal positioned inside of the area with the second surface of the conductive pad. | 07-12-2012 |
20130232802 | MEASURING INSTRUMENT - To provide a measuring instrument having improved usability and viewability. A measuring instrument includes a touch panel display unit that receives an external input performed by physical contact and has a display function. In the touch panel display unit, a plurality of operation icons that are used to perform a complicated input operation as well as a measurement result are displayed. It is possible to provide a measuring instrument that is superior in terms of the usability and viewability. For example, a measurement mode can be selected by selecting and touching one of the plurality of operation icons displayed in the touch panel display unit. | 09-12-2013 |
Patent application number | Description | Published |
20090185539 | Handover Method and Base Station - To provide a method for suitably enabling the resources of a handover-source base station to be released and the post-handover processes of a handover-destination base station to be executed by securely determining a transfer of Last Packet without increasing a packet transmission delay in a handover process in a mobile communication system where a mobile station makes a communication with packets, a base station is provided with a Last Packet determination timer, and the handover source base station or the handover-destination base station activates the timer upon receipt of a handover completion acknowledgment transmitted from an upper node station or according to a resource release instruction after the reception of the handover completion acknowledgment, and determines that Last Packet has been received, upon expiration of the timer. | 07-23-2009 |
20090253434 | Base Station And Method For Reducing Transfer Delay - A disclosed base station for transferring, to a user terminal, a series of packet data received from a higher-level network, includes a determining unit configured to, when the user terminal is handed over to a handover destination base station due to movement of the user terminal, determine according to a transfer delay-related characteristic of the series of packet data whether data forwarding of the series of the packet data to the handover destination base station is not to be performed. | 10-08-2009 |
20100130208 | Method For Handover In Wireless Communication System, Wireless Base Station, And Wireless Terminal - A first wireless base station sends a second wireless base station first forward order information provided to the first data destined for a wireless terminal; and the second wireless base station sends the wireless terminal the first data forwarded from the first wireless base station and provides second forward order information obtained through adding an offset value to the first forward order information to second data which the second wireless station has received from the upper apparatus and which is destined for the wireless terminal. | 05-27-2010 |
Patent application number | Description | Published |
20100306595 | SCENARIO CREATING APPARATUS, SCENARIO CREATING METHOD, AND STORAGE MEDIUM STORING SCENARIO CREATING PROGRAM - A scenario creating apparatus which creates a scenario for verifying operation of an information processing system in which a plurality of servers including a database server are connected, includes a collector that collects messages transmitted and received between the plurality of servers, when operation of the information processing system is being verified by a terminal apparatus that performs verification of operation; an association unit that associates the collected messages with each other; a sorter that sorts work models in ascending order of time at which access is made to the database server, the work models each being a group of the associated messages; and a scenario creating unit that creates the scenario on the basis of the sorted work models. | 12-02-2010 |
20110231855 | APPARATUS AND METHOD FOR CONTROLLING PRIORITY - A priority control apparatus, includes a job operation information storage unit stores, as job operation information on a per job operation basis for a plurality of job operations, a process and an object used by the process with the process mapped to the object, each job operation being executed by a plurality of processes; a delay determiner determines a first job operation that is delayed from among the plurality of job operations; and a priority controller identifies a second job operation sharing an object used in the first job operation by referencing the job operation information storage unit, identifies a process, using an object not used in the first job operation, from among the processes executing the second job operation identified, and lowers a priority at which the identified process is to be executed. | 09-22-2011 |