Patent application number | Description | Published |
20080240645 | OPTICAL INTEGRATED CIRCUIT AND OPTICAL INTEGRATED CIRCUIT MODULE - An optical integrated circuit | 10-02-2008 |
20090185774 | Optical integrated device and method of manufacturing the same - An optical integrated device comprises a substrate and a waveguide formed on a surface of the substrate. The waveguide includes a lower clad layer, a core layer formed on the lower clad layer and having a refractive index greater than that of the lower clad layer, and an upper clad layer formed on the core layer and having a refractive index smaller than that of the core layer. The waveguide further includes a straight waveguide part and a bending waveguide part curved in a plane parallel to the surface of the substrate. The lower clad layer in the bending waveguide part projects from the substrate by a projection height greater than that of the lower clad layer in the straight waveguide part. | 07-23-2009 |
20100111468 | OPTICAL INTEGRATED CIRCUIT AND OPTICAL INTEGRATED CIRCUIT MODULE - An optical integrated circuit includes a planar lightwave circuit, and a semiconductor element, which are fixed at one contact surface. A semiconductor optical amplifier (SOA) and a turnaround waveguide having a turnaround portion are formed on a semiconductor substrate. The turnaround waveguide is turned around on the second substrate and is connected to an output port of the SOA. An input port and an output port of the turnaround waveguide are optically coupled at the contact surface with an input port and an output port of the optical waveguides respectively. | 05-06-2010 |
20100215072 | SEMICONDUCTOR DEVICE AND OPTICAL MODULE - A semiconductor laser element | 08-26-2010 |
20100245987 | SEMICONDUCTOR OPTICAL AMPLIFIER - It is desirable to provide a semiconductor optical amplifier from which it becomes able to obtain a higher output power. A semiconductor optical amplifier in comprises an active wave guiding layer which comprises a passive core region that is formed of a semiconductor, and active cladding regions that are located at both sides of the passive core region and each of that is comprised of an active layer which is formed of a semiconductor and which has an index of refraction to be lower than that of the passive core region, wherein a light is wave guided with being amplified in the active wave guiding layer. Moreover, it is desirable for the active wave guiding layer to be formed of a compound semiconductor, and to be formed by integrating the passive core region and the active cladding regions to be monolithic on to a substrate that is formed of a compound semiconductor by making use of a process of a butt joint growth. | 09-30-2010 |
20110206082 | SEMICONDUCTOR LASER AND SEMICONDUCTOR LASER MODULE - A semiconductor laser outputs a laser light from an output facet of a waveguide having an index waveguide structure, via a lens system. The waveguide includes, in order from a rear facet opposite to the output facet, a first narrow portion, a wide portion that is wider than the first narrow portion, a second narrow portion narrower than the wide portion, a first tapered portion formed between the first narrow portion and the wide portion, which expands toward the wide portion, and a second tapered portion formed between the wide portion and the second narrow portion, which narrows toward the second narrow portion. Each of the first narrow portion, the wide portion, and the second narrow potion has a uniform width. | 08-25-2011 |
20110243494 | SEMICONDUCTOR OPTICAL AMPLIFIER MODULE - Included are a semiconductor device unit in which a semiconductor optical amplifier and a first semiconductor photo detector being configured to monitor a part of an input light input to the semiconductor optical amplifier or a part of an output light output from the semiconductor optical amplifier are integrated on a mutually same substrate, and a passive waveguide unit connected to the semiconductor device unit and in which a first passive waveguide being configured to cause the input light to be input to the semiconductor optical amplifier or to cause the output light to be output from the semiconductor optical amplifier and a second passive waveguide branching from the first passive waveguide and being configured to cause a part of the input light or a part of the output light to be input to the first semiconductor photo detector are provided on a mutually same substrate. | 10-06-2011 |
20130121354 | OPTICAL INTERCONNECTION SYSTEM - There is provided an optical interconnection system including a plurality of semiconductor integrated devices each including a surface emitting laser array device including a plurality of surface emitting laser devices each emitting an output laser signal light of a different wavelength modulated based on an input modulated signal, a silicon optical waveguide that guides output laser signal lights emitted from the surface emitting laser devices of each of the semiconductor integrated devices to another semiconductor integrated device, a plurality of optical couplers respectively corresponding to the semiconductor integrated devices and guiding the output laser signal lights to the silicon optical waveguide, and a plurality of optical splitters respectively corresponding to the semiconductor integrated devices, receiving the output laser signal lights guided by the silicon optical waveguide, and inputting an input laser signal light to a corresponding one of the semiconductor integrated devices. | 05-16-2013 |
20130121632 | SOA-PLC HYBRID INTEGRATED POLARIZATION DIVERSITY CIRCUIT AND METHOD FOR MANUFACTURING THE SAME - The invention of the present application provides an SOA-PLC hybrid integrated polarization diversity circuit including a PLC-PBS chip and an SOA-COS whose respective waveguides are coupled to each other. The PLC-PBS chip includes: first and second optical waveguides; a Mach-Zehnder interferometer circuit; and a half-wave plate placed in the first optical waveguide which TM mode light is split into. The SOA-COS includes: a third optical waveguide connected to the first optical waveguide; a fourth optical waveguide connected to the second optical waveguide; and an SOA formed in at least one of the third and fourth optical waveguides. One end of the third optical waveguide and one end of the fourth optical waveguide are connected to a U-turn optical waveguide, the one ends being not connected to the first optical waveguide and the second optical waveguide, respectively. | 05-16-2013 |
20140078580 | OPTICAL AMPLIFIER DEVICE - An optical amplifier device comprising an input/output section that inputs incident light and outputs emission light; a polarized light splitting section that causes a polarized light component of the incident light input from the input/output section to branch, and outputs first polarization mode light having a first polarization and second polarization mode light having a second polarization different from the first polarization; a polarization converting section that receives the first polarization mode light, converts the first polarization to the second polarization, and outputs first polarization converted light; and an optical amplifying section that amplifies the first polarization converted light input to one end of a waveguide, outputs the resulting amplified first polarization converted light from another end of the waveguide, amplifies the second polarization mode light input to the other end of the waveguide, and outputs the resulting amplified second polarization mode light from the one end of the waveguide. | 03-20-2014 |
20140314113 | SEMICONDUCTOR LASER WITH VARIED-WIDTH WAVEGUIDE AND SEMICONDUCTOR LASER MODULE INCLUDING THE SAME - A semiconductor laser outputs a laser light from an output facet of a waveguide having an index waveguide structure, via a lens system. The waveguide includes, in order from a rear facet opposite to the output facet, a first narrow portion, a wide portion that is wider than the first narrow portion, a second narrow portion narrower than the wide portion, a first tapered portion formed between the first narrow portion and the wide portion, which expands toward the wide portion, and a second tapered portion formed between the wide portion and the second narrow portion, which narrows toward the second narrow portion. Each of the first narrow portion, the wide portion, and the second narrow portion has a uniform width. | 10-23-2014 |
20150131684 | SURFACE-EMITTING LASER APPARATUS, OPTICAL MODULE, AND METHOD OF DRIVING SURFACE-EMITTING LASER ELEMENT - A surface-emitting laser apparatus includes: a surface-emitting laser element; and a driving apparatus supplying a modulation-driving current to the surface-emitting laser element. The modulation-driving current is intensity-modulated to vary across a value of a bias current. The number of lateral modes of laser oscillation of the surface-emitting laser element changes from one to three at maximum in accordance with a value of the modulation-driving current. Among changing currents at which number of the lateral modes of the laser oscillation of the surface-emitting laser element changes, if a first changing current is defined at which the number of the lateral mode of the laser oscillation changes from one to two, the driving apparatus supplies the modulation-driving current to the surface-emitting laser element. The modulation-driving current is set so that a value of the first changing current is not between the bias current and a maximum value of the modulation-driving current. | 05-14-2015 |
20150146757 | SEMICONDUCTOR LASER MODULE - A semiconductor laser module includes: a semiconductor laser outputting a laser light from an output-facet side of a waveguide which has a first narrow portion identical in width, a wide portion wider than the first narrow portion, a second narrow portion narrower than the wide portion, a first tapered portion between the first narrow portion and the wide portion and increasing in width toward the wide portion, and a second tapered portion between the wide portion and the second narrow portion and decreasing in width toward the second narrow portion; and an optical fiber to which the laser light is input has an optical-feedback unit reflecting a predetermined wavelength of light. The semiconductor laser is enclosed in a package with one end of the optical fiber. The optical-feedback unit has a first optical-feedback unit set at a predetermined reflection center wavelength determining an oscillation wavelength and a second optical-feedback unit. | 05-28-2015 |
Patent application number | Description | Published |
20140301839 | CONSTRUCTION MACHINE - An efficient and quiet construction machine has a heat exchanger in which the air flowing out from an axial flow fan avoids collision with the engine. The axial flow fan includes a plurality of blade pieces, a fan ring which guides a flow of air to the axial flow fan, a heat exchanger which is disposed on an upstream side or a downstream side of the flow of air with respect to the axial flow fan, and a structure which is disposed on the downstream side of the flow of air with respect to the axial flow fan. The fan ring includes a suction-side rounded part which reduces a flow channel on a suction side and a discharge-side rounded part which expands the flow channel on a discharge side, and each of the blade pieces is inclined at a sweep forward angle from an axial center toward a rotation direction. | 10-09-2014 |
20140308129 | Wind Power Generation System - Provided is a wind power generation system that is less likely to change its cooling performance depending on the wind direction. In order to solve the above problem, the wind power generation system of the invention includes blades adapted to rotate upon receiving wind, a generator for performing a power generating operation by rotating a rotor together with rotation of the blades, a nacelle for supporting the blades via a main shaft, a tower for rotatably supporting the nacelle, a power conditioning system or transformer accommodated in the tower, and a plurality of radiators disposed on an outer peripheral side of the tower for cooling the power conditioning system or the transformer. The radiators positioned substantially at the same height are arranged at substantially equal intervals in a circumferential direction of the tower. | 10-16-2014 |
20150091307 | Wind Power Generation System - A wind power generation system includes: blades configured to be rotated by wind; a generator configured to be driven by the rotation of the blades to generate power; a nacelle supporting the blades; and a tower supporting the nacelle rotatably. The wind power generation system is configured to receive the wind at a side opposite to a side of the nacelle on which the blades are provided. The system includes a radiator configured to dissipate heat in the nacelle through a cooling medium. The radiator is provided outside the nacelle on an upwind side of the nacelle. The radiator is provided with an intake surface thereof facing an upwind direction. A path is formed downstream of the radiator to guide the wind that has passed the radiator. | 04-02-2015 |
Patent application number | Description | Published |
20100182481 | IMAGING APPARATUS, USER INTERFACE, AND ASSOCIATED METHODOLOGY FOR A CO-EXISTENT SHOOTING AND REPRODUCTION MODE - A currently captured image R of an object is displayed nearly at a center portion of a display frame SC on a display screen ST | 07-22-2010 |
20110078612 | Information processing apparatus, information processing method, information processing program, and mobile terminal device - An information processing apparatus includes a content detector portion, a display controller portion, an operation state detector portion, and a popup display controller portion. The content detector portion detects contents belonging to a same time range from different types of contents each including time information. The display controller portion collects the contents belonging to the same time range and having been detected by the content detector portion. In addition, the display controller portion then displays, on a display portion along a time series, content-related graphical information of the respective contents collected in units of the respective time range used when collecting the respective contents, and displays on the display portion a selector serving to select a desired content from among respective contents displayed through the content-related graphical information. The operation state detector portion detects an operation state of an operation portion serving to perform an operation of moving the selector. In accordance with time information of a content selected by the selector when a predetermined operation state of the operation portion is detected by the operation state, the popup display controller portion detects a content having past time information with respect to the time information of the selected content, and popup displays content-related graphical information of the detected content on the display portion. | 03-31-2011 |
20120036443 | INFORMATION TERMINAL, INFORMATION PRESENTATION METHOD FOR AN INFORMATION TERMINAL, AND INFORMATION PRESENTATION PROGRAM - An information terminal enables a user to simply and easily confirm a plurality of pieces of update information handled by a plurality of various application programs without any troublesome operation. An information storage stores a plurality of different types of information. An update information storage stores a part of information updated in the information storages as update information associated with the respective types. An update information manager monitors an information update in the information storages and stores, when an information update is made in the information storages, the part of the updated information in the update information storage as update information associated with the respective types. Further, an information selector extracts the update information stored in the update information storage in time series and outputs them to display them on a screen. | 02-09-2012 |
20120236194 | IMAGING APPARATUS AND USER INTERFACE - A screen ST | 09-20-2012 |
20120274831 | IMAGING APPARATUS, USER INTERFACE, AND ASSOCIATED METHODOLOGY FOR A CO-EXISTENT SHOOTING AND REPRODUCTION MODE - A currently captured image of an object is displayed at a center of a display frame on a display screen in a shooting mode. When a dial is rotated, the currently captured image is moved rightward. A reproduced image captured before the currently captured image is displayed on the left thereof. Another reproduced image captured before the reproduced image is displayed on the left thereof. The currently captured image and the reproduced images are displayed simultaneously on the display screen as a co-existent shooting and reproducing mode. When the dial is rotated in the counterclockwise direction, only the reproduced images are displayed in a reproducing mode. The reproduced images are displayed along a time axis. | 11-01-2012 |
20120321196 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, INFORMATION PROCESSING PROGRAM, AND MOBILE TERMINAL APPARATUS - Automatically preparing communications for transmission by a mobile terminal device. In one example, this includes storing contact information including personal contacts and associated address and face image information. A face image is extracted from within a still image content to obtain an extracted face image. The extracted face image is linked to a given personal contact among the personal contacts by finding a match corresponding to the extracted face image among previously extracted face images found in the stored contact information. The given personal contact is correlated to address information using the contact information, and a message is automatically prepared for transmission to the given personal contact using the address information. | 12-20-2012 |
20130024806 | Method And Apparatus For Area-Efficient Graphical User Interface - A user operates a GUI with a thumb and an index finger while holding an information processing device with left and right hands. The GUI screen image displays a directional keys input area at the lower left on the screen image, a button input area at the lower right on the screen image, an L | 01-24-2013 |
20130031515 | Method And Apparatus For Area-Efficient Graphical User Interface - A GUI screen image is a standard screen image, and displays a first combined GUI area, which is a combination of a GUI of the directional keys and a GUI of a joystick, and a second combined GUI area, which is a combination of a GUI of the four-type operation buttons and a GUI of a joystick, at the lower left and at the lower right on the screen image, respectively. Depending on an area in the first combined GUI area or in the second combined GUI area to which a user newly touches, which of the combined GUI to be used is determined and a screen image is switched, and if a finger or a thumb detaches, the screen image switches back. | 01-31-2013 |
20130127921 | Electronic Device, Method of Displaying Display Item, and Search Processing Method - An acquisition unit acquires a content image corresponding to content. A content image display unit arranges a plurality of content images side by side in a display screen image, and a related information display unit displays information related to an arranged content image. A first reception unit acquires a first moving instruction for the content images arranged side by side, and a second reception unit acquires a second moving instruction for the content images arranged side by side. The content image display unit moves the content images according to a moving instruction acquired by the first reception unit or the second reception unit. A related information display unit displays different types of related information when the first reception unit acquires the first moving instruction and when the second reception unit acquires the second moving instruction. | 05-23-2013 |
20130155310 | IMAGING APPARATUS, USER INTERFACE, AND ASSOCIATED METHODOLOGY FOR A CO-EXISTENT SHOOTING AND REPRODUCTION MODE - A currently captured image of an object is displayed at a center of a display frame on a display screen in a shooting mode. When a dial is rotated, the currently captured image is moved rightward. A reproduced image captured before the currently captured image is displayed on the left thereof. Another reproduced image captured before the reproduced image is displayed on the left thereof. The currently captured image and the reproduced images are displayed simultaneously on the display screen as a co-existent shooting and reproducing mode. When the dial is rotated in the counterclockwise direction, only the reproduced images are displayed in a reproducing mode. The reproduced images are displayed along a time axis. | 06-20-2013 |
20140063318 | REPRODUCTION APPARATUS, IMAGING APPARATUS, SCREEN DISPLAY METHOD, AND USER INTERFACE - A desired image is quickly retrieved from stored images. Reproduced images are horizontally arranged on time axis. Horizontal lines are displayed above the plurality of images and delimited every image group such that images belonging to the same image group are visually identified. Dots are displayed on individual lines corresponding to representative images P | 03-06-2014 |
20140289671 | INFORMATION TERMINAL, INFORMATION PRESENTATION METHOD FOR AN INFORMATION TERMINAL, AND INFORMATION PRESENTATION PROGRAM - Information storages store a plurality of different types of information. An update information storage stores a part of information updated in the information storages as update information associated with the respective types. An update information manager monitors an information update in the information storages and stores, when an information update is made in the information storages, the part of the updated information in the update information storage as update information associated with the respective types. Further, an information selector extracts the update information stored in the update information storage in time series and outputs them to display them on a screen. | 09-25-2014 |
20140289676 | IMAGING APPARATUS AND USER INTERFACE - A screen ST | 09-25-2014 |