Patent application number | Description | Published |
20130071283 | TITANIUM ALLOY COMPLEX POWDER CONTAINING CERAMIC AND PROCESS FOR PRODUCTION THEREOF, CONSOLIDATED TITANIUM ALLOY MATERIAL USING THIS POWDER AND PROCESS FOR PRODUCTION THEREOF - Titanium alloy complex powder is yielded by hydrogenating titanium alloy raw material to generate hydrogenated titanium alloy, grinding and sifting it to obtain hydrogenated titanium alloy powder, adding ceramic powder selected from SiC, TiC, SiO | 03-21-2013 |
20130071284 | TITANIUM ALLOY COMPLEX POWDER CONTAINING COPPER POWDER, CHROMIUM POWDER OR IRON POWDER, TITANIUM ALLOY MATERIAL CONSISTING OF THIS POWDER, AND PROCESS FOR PRODUCTION THEREOF - A process for production of titanium alloy material has steps of hydrogenating titanium alloy material to generate hydrogenated titanium alloy; grinding, sifting and dehydrogenating the hydrogenated titanium alloy powder to generate titanium alloy powder; adding at least one of copper powder, chromium powder or iron powder to obtain titanium alloy complex powder; consolidating the titanium alloy complex powder by CIP process and subsequent HIP process, or by HIP process after filling the titanium alloy complex powder into a capsule. In addition, titanium alloy complex powder and titanium alloy material produced by the process are provided. | 03-21-2013 |
20140044584 | Alpha + beta or beta TITANIUM ALLOY AND METHOD FOR PRODUCTION THEREOF - A titanium alloy containing copper, which cannot be realized by a conventional method, is provided, having a composition in which copper is contained in titanium with no segregation, and having improved strength and hardness. In addition a method is also provided, in which the titanium alloy is produced at lower cost than in a conventional method. The α+β or β titanium alloy contains copper at 1 to 10 mass %, has a crystal phase of β and α phase or of β phase, is formed of crystal particles not more than 100 μm, and has a copper concentration per an arbitrary specified 1 mm | 02-13-2014 |
20140334964 | Alpha + beta or beta titanium alloy and method for producing same - Titanium alloy containing iron, that is, iron-containing titanium alloy having high strength and hardness in which iron in a composition which cannot be realized in a conventional method, is contained with no segregation, and is provided in lower cost. The α+β titanium alloy or β titanium alloy is produced by a forming process such as hot extrusion of titanium alloy powder containing 3 to 15 mass % of iron powder. The method for production of the α+β titanium alloy or β titanium alloy includes a step of mixing 3 to 15 mass % of iron powder and titanium alloy powder as the remainder, and a step of performing a forming process of hot extrusion on this powder mixture. | 11-13-2014 |
Patent application number | Description | Published |
20110255291 | LIGHT FLUX CONTROLLING MEMBER, LIGHT EMITTING DEVICE, AND LIGHTING DEVICE - Disclosed is a light emitting device to reduce the number of components and elements of a light emitting device and a lighting device having the light emitting device, and simplify and miniaturize the structures of these devices. With this light flux controlling member ( | 10-20-2011 |
20120155091 | LIGHT EMITTING DEVICE AND ILLUMINATION DEVICE - A light emitting device that can reduce the illuminance unevenness on an illuminated surface. First light flux controlling member | 06-21-2012 |
20130044496 | LUMINOUS-FLUX CONTROL MEMBER AND ILLUMINATION APPARATUS USING THE SAME - Provided are a lighting lens and an illumination apparatus including the same that can improve color rendering properties and prevent reductions in performance of a light flux controlling member and in illuminance on a surface to be illuminated when a pseudo-white LED is used. This lighting lens ( | 02-21-2013 |
20130114258 | LIGHTING DEVICE - A lighting device preventing an illumination variation on a surface to be irradiated. The lighting device has a first light emitting surface section ( | 05-09-2013 |
20130128576 | LIGHT-EMITTING DEVICE AND ILLUMINATION DEVICE - A light-emitting device combining a first luminous flux control member having a total reflection surface and emitting light from an emission surface in a narrow angle range centered mainly on an optical axis, and a second luminous flux control member arranged to surround the total reflection surface of the first luminous flux control member. The second luminous flux control member ( | 05-23-2013 |
20140119027 | LIGHT FLUX CONTROLLING MEMBER, LIGHT EMITTING DEVICE, SURFACE LIGHT SOURCE DEVICE, AND DISPLAY APPARATUS - A light flux controlling member includes an emission surface, a first incidence surface that is an inner surface of a concave portion, a second incidence surface that is disposed outside an opening rim portion of the concave portion, and a rear surface. A plurality of annular grooves is formed in the second incidence surface. Each annular groove forms an intersection line with an adjacent annular groove. When a virtual plane that passes through the outer rim portion of the second incidence surface and is orthogonal to the central axis is assumed as a reference plane, the plurality of annular grooves is disposed so that the intersection line become close to the virtual plane with distance from the central axis. The shape of a cross section of the annular groove including the central axis is an arc of which the center of curvature is located outside the light flux controlling member. | 05-01-2014 |
20140140051 | LIGHTING APPARATUS - A lighting apparatus includes a light emitting element, a light flux controlling member which controls light distribution so as to narrow the light emitted from the light emitting element, a substantially tubular prism member which is formed of an optically-transparent material, has a plurality of prism rows, and extends in the optical axis direction, and a substantially tubular diffusion member having optical transparency and a light diffusion property. The plurality of prism rows is disposed parallel to the optical axis on the outer peripheral surface of the prism member. | 05-22-2014 |
20140233217 | SURFACE LIGHT SOURCE DEVICE AND DISPLAY DEVICE - In a surface light source device ( | 08-21-2014 |
20150176801 | LUMINOUS FLUX CONTROL MEMBER, LIGHT EMITTING APPARATUS, ILLUMINATING APPARATUS, AND DISPLAY APPARATUS - A light flux controlling member ( | 06-25-2015 |
20150211713 | SURFACE LIGHT SOURCE DEVICE AND DISPLAY APPARATUS - A surface light source device ( | 07-30-2015 |
20150219823 | SURFACE LIGHT SOURCE DEVICE AND DISPLAY DEVICE - This surface light source device has; a case; multiple light-emitting devices arranged on the inner surfaces of a pair of side walls within the case; a reflecting member that protrudes from the base surface of the case, and that reflects light emitted from the light-emitting devices toward an aperture part of the case; and a light-emitting surface member that has a light-diffusing property and a light-transmitting property, and that covers the aperture part. The light-emitting devices are arranged on the side walls such that the light axis of the light-emitting elements is parallel to the base surface of the case. The light-reflecting member has a ridge line that is parallel to the side surfaces and the ceiling surface of the case, and the light-reflecting member is formed with a curved surface, with the ridge line being contained in the apex thereof. | 08-06-2015 |
20150260371 | LUMINOUS FLUX CONTROL MEMBER, LIGHT-EMITTING DEVICE, SURFACE LIGHT SOURCE DEVICE, AND DISPLAY DEVICE - This luminous flux control member has: an incidence surface through which light emitted from a light-emitting element enters; an emission surface through which the light entering from the incidence surface is emitted to the outside; and multiple ridges that are formed on the back side so as to surround the central axis (CA) and that have a substantially triangular cross-sectional shape. Each of the multiple ridges has a first reflecting surface, a second reflecting surface, and a ridge line which is the line of intersection of the first reflecting surface and the second reflecting surface. An imaginary line containing the ridge lines intersects the central axis (CA) at a position closer to the front side than the ridge lines. | 09-17-2015 |
20150323729 | LIGHT EMITTING DEVICE, SURFACE LIGHT SOURCE DEVICE AND DISPLAY APPARATUS - A light emitting device includes a substrate in which a specular reflection area that specularly reflects reaching light is disposed on one surface, a light emitting element disposed on the substrate to emit light at least from a side surface, and a light flux controlling member disposed over the light emitting element to control a distribution of light to be emitted from the light emitting element. The light flux controlling member includes a rear surface disposed closer to the substrate, an incidence surface being an inner surface of a recess opening toward the rear surface and receiving light emitted from the light emitting element, and an emission surface emitting at least a part of the light incident through the incidence surface toward an outside. An outer edge portion of the specular reflection area is positioned outside an opening edge portion of the recess. | 11-12-2015 |
Patent application number | Description | Published |
20090118432 | Process For Production Of Water-Absorbing Resin - [Problems] To provide a process for preparing a water-absorbent resin which can be suitably used in a hygienic material, the water-absorbent resin having a large amount of water-retention, a large amount of water absorption under pressure, a high water absorption rate, and a small amount of water-soluble substance. | 05-07-2009 |
20100197491 | METHOD FOR PRODUCTION OF WATER-ABSORBABLE RESIN, AND WATER-ABSORBABLE RESIN PRODUCED BY THE METHOD - A method for producing a water-absorbent resin, characterized by adding a bisoxetane compound represented by the following general formula (1): | 08-05-2010 |
20110111199 | WATER-ABSORBENT SHEET COMPOSITION - A water-absorbent sheet composition comprising a structure in which a water-absorbent resin and a hot melt adhesive are sandwiched with two or more sheets of hydrophilic nonwoven fabrics, wherein the hydrophilic nonwoven fabrics have a basis weight of 30 g/m | 05-12-2011 |
20110151228 | WATER-ABSORBENT SHEET COMPOSITION - A water-absorbent sheet composition comprising a structure in which a water-absorbent resin and a hot melt adhesive are sandwiched with two or more sheets of hydrophilic nonwoven fabrics, wherein the hydrophilic nonwoven fabrics have a basis weight of 25 g/m | 06-23-2011 |
20110276019 | WATER-ABSORBENT SHEET COMPOSITION - A water-absorbent sheet composition ( | 11-10-2011 |
20120029456 | WATER-ABSORBENT SHEET - A water-absorbent sheet comprising a structure comprising at least an absorbent layer containing a water-absorbent resin, sandwiched between two or more sheets of a hydrophilic nonwoven fabric, wherein the water-absorbent sheet is subjected to wavy embossing | 02-02-2012 |
20160030919 | PROCESS FOR PRODUCING WATER-ABSORBENT RESIN - The present invention provides a process for producing a water-absorbent resin, characterized in that a reverse-phase suspension polymerization of a water-soluble ethylenically unsaturated monomer is carried out in a hydrocarbon dispersion medium comprising a dispersion stabilizer while an azo-based compound and a peroxide are combined in the presence of an internal-crosslinking agent, in that the following formulae are satisfied, | 02-04-2016 |
Patent application number | Description | Published |
20130018349 | WATER-ABSORBENT SHEET STRUCTUREAANM Takatori; JunichiAACI Himeji-shiAACO JPAAGP Takatori; Junichi Himeji-shi JPAANM Matsushita; HidekiAACI Himeji-shiAACO JPAAGP Matsushita; Hideki Himeji-shi JPAANM Sakata; JunAACI Himeji-shiAACO JPAAGP Sakata; Jun Himeji-shi JPAANM Inaba; HarukaAACI Himeji-shiAACO JPAAGP Inaba; Haruka Himeji-shi JP - A water-absorbent sheet structure comprising a structure in which an absorbent layer containing a water-absorbent resin is sandwiched with a hydrophilic nonwoven fabric from an upper side and a lower side of the absorbent layer, characterized in that at least one side of a topside and an underside of the water-absorbent sheet structure is subjected to embossing, and that the water-absorbent sheet structure has the following properties: when a saline solution is allowed to be absorbed in an amount of 4 L per 1 m | 01-17-2013 |
20130046263 | WATER-ABSORBENT SHEET STRUCTURE - A water-absorbent sheet structure comprising a structure in which an absorbent layer containing a water-absorbent resin and an adhesive is sandwiched with nonwoven fabrics from an upper side and a lower side of the absorbent layer, wherein the water-absorbent sheet structure has a structure in which the absorbent layer is separated in divided parts of a primary absorbent layer and a secondary absorbent layer with a fibrous substrate having a void ratio of from 91 to 99%, and wherein the water-absorbent resin is contained in an amount of from 100 to 1,000 g/m | 02-21-2013 |
20130130017 | WATER-ABSORBING RESIN | 05-23-2013 |
20130178814 | WATER-ABSORBENT SHEET STRUCTURE - A water-absorbent sheet structure comprising a structure in which an absorbent layer containing a water-absorbent resin is sandwiched with a hydrophilic nonwoven fabric from an upper side and a lower side of the absorbent layer, characterized in that at least one side of the upper side and the lower side of the water-absorbent sheet structure is subjected to embossing, wherein a central region W | 07-11-2013 |
20130217846 | METHOD FOR PRODUCING WATER-ABSORBENT RESIN | 08-22-2013 |
20130273351 | METHOD FOR PRODUCING WATER-ABSORBENT RESIN | 10-17-2013 |
20130330566 | METHOD FOR PRODUCING WATER-ABSORBENT RESIN - A method for producing a water-absorbent resin including the step of subjecting primary particles obtained by a first-step reversed phase suspension polymerization to agglomeration according to a second-step reversed phase suspension polymerization, each step using an internal-crosslinking agent-added water-soluble ethylenically unsaturated monomer, characterized in that A and B satisfy the relationships of:
| 12-12-2013 |
20140031203 | WATER-ABSORBENT RESIN, ABSORBENT BODY AND ABSORBENT ARTICLE - The present invention provides a novel water-absorbent resin desirable for use as a hygienic material and the like, and an absorbent material and absorbent article using the water-absorbent resin; the water-absorbent resin having a high gel strength that prevents a reduction in liquid permeation rate by suppressing gel blocking during absorption, and an excellent water-retention capacity at the same time. | 01-30-2014 |
20140031507 | METHOD FOR PRODUCING WATER-ABSORBING RESIN - The invention provides a novel method for producing a water-absorbent resin comprising: subjecting at least one water-soluble ethylenic unsaturated monomer to reversed-phase suspension polymerization in a petroleum hydrocarbon dispersion medium, the reversed-phase suspension polymerization being conducted using a 0.00005 to 0.00016 mol of water-soluble azo initiator for radical polymerization per mol of the water-soluble ethylenic unsaturated monomer in the presence of 0.000015 to 0.00015 mol of hypophosphorous compound per mol of the water-soluble ethylenic unsaturated monomer. | 01-30-2014 |
20140194574 | METHOD FOR PRODUCING WATER-ABSORBENT RESIN, AND WATER-ABSORBENT RESIN OBTAINED BY SAME - A method for producing a water-absorbent resin including the step of subjecting a water-soluble ethylenically unsaturated monomer to a reversed phase suspension polymerization in a petroleum hydrocarbon dispersion medium in the presence of a radical polymerization initiator and a dispersion stabilizer, wherein the method is characterized by the use of an ether-ester type nonionic surfactant as the dispersion stabilizer, and a water-absorbent resin obtained by the method, wherein the water-absorbent resin has a water-retention capacity of saline solution of 25 g/g or more, a water-absorption rate of saline solution of 50 seconds or less, and a flow index under moisture absorption of 70% or more. According to the method of the present invention, a water-absorbent resin having high water-retention capacity, excellent water-absorption rate, and further having excellent flowability under moisture absorption can be produced. The water-absorbent resin having the specified physical properties as described above can enhance properties of hygienic materials, and the resin can be suitably used in the production of the hygienic materials. | 07-10-2014 |
20150080539 | POLYMERIZATION REACTOR AND METHOD FOR PRODUCING WATER ABSORBENT RESIN - A polymerization reactor of the present invention includes a container body | 03-19-2015 |
20150216740 | WATER-ABSORBENT RESIN, WATER-ABSORBENT MATERIAL, AND WATER-ABSORBENT ARTICLE - One purpose of the present invention is to provide a water-absorbent resin having excellent water absorption characteristics and being capable of improving the shape-retaining characteristics of a water-absorbent material when used in the water-absorbent material. A water-absorbent resin obtained by performing reversed phase suspension polymerization of a water-soluble ethylenically unsaturated monomer in a hydrocarbon dispersion medium, using a radical polymerization initiator, said resin being capable of having both excellent absorption performance and shape retention in a water-absorbent material using the water-absorbent resin, as a result of fulfilling the conditions of: (1) having a water-retention capacity of physiological saline of at least 38 g/g; (2) having a water-absorption capacity of physiological saline under a load of 4.14 kPa of at least 15 ml/g; and (3) having a tan δ of a 50-fold swollen gel of at least 2.10×10 | 08-06-2015 |
Patent application number | Description | Published |
20090290487 | Communication apparatus and path switching method - In a communication apparatus on a network having ring topology and connecting plural communication apparatuses such that adjacent communication apparatuses are connected through plural lines, a first detecting unit detects failure occurring in a line included in a relay path set between the communication apparatus and another communication apparatus on the network. When the first detecting unit detects failure, a switching unit switches the relay path to a relay path connecting the communication apparatuses on the network in a direction opposite to the relay path originally set. A second detecting unit detects failure occurring in a line included in the relay path switched to by the switching unit; and when the second detecting unit detects failure, a resetting unit resets the relay path using a line where no failure has been detected. | 11-26-2009 |
20100002705 | RELAY APPARATUS, CONDUCTION CONFIRMATION METHOD THEREOF AND CONDUCTION CONFIRMATION CIRCUIT - The relay apparatus relays frames in which a plurality of network identifiers are set and comprises a frame determining unit, a converting unit, and a sending unit. The frame determining unit determines whether a frame received at a communication port is a specific frame or not. The converting unit converts, when it is determined that the received frame is a specific frame and when the communication port is a blocking port, a network identifier set in the specific frame to another network identifier among the plurality of network identifiers. The sending unit sends the specific frame, the network identifier of which has been converted by the conversion unit, from a port opposing the communication port. | 01-07-2010 |
20100158019 | FRAME TRANSFER APPARATUS AND FRAME TRANSFER METHOD - A frame transfer apparatus includes a plurality of ports for transmitting and receiving frames which include transmitting source information and transmitting destination information. The apparatus further includes a processing unit to store information which relates the transmitting source information included in the received frame and port information of a port which receives the received frame, a frame transmitting unit to transmit the received frame via a port that is identified by the port information which corresponds to the transmitting destination information included in the received frame and is extracted from the information stored by the processing unit, and a learning information erasing unit to erase the information stored by the processing unit for every predetermined time. | 06-24-2010 |
20100208580 | COMMUNICATION APPARATUS, COMMUNICATION SYSTEM, COMMUNICATION PROGRAM, AND CONTROL METHOD - In a communication device for monitoring a network system where a frame is transferred, with a maintenance frame for maintenance and management, an input-output section inputs or outputs a frame. A failure detection section detects occurrence of a failure in the network system on the basis of the inputted frame. A setting section sets the communication device according to the detection of the failure so as to terminate or transfer a data frame inputted from the input-output section. A data frame control section controls whether to terminate or transfer the data frame, according to the setting of the data frame by the setting section. A maintenance frame control section controls whether to terminate or transfer the maintenance frame inputted from the input-output section, according to the setting of the data frame by the setting section. | 08-19-2010 |
Patent application number | Description | Published |
20080205016 | Module Board - A module board has a configuration in which a first circuit board, a first composite sheet, a second circuit board, a second composite sheet, and a third circuit board are laminated in this order. Inspection terminals are arranged in a matrix shape in a predetermined region on an upper surface of the third circuit board. Electronic components are mounted on the first and second circuit boards. The inspection terminals are electrically connected to the electronic components mounted on the first and second circuit boards through vias and wiring patterns. | 08-28-2008 |
20100097085 | SOCKET, MODULE BOARD, AND INSPECTION SYSTEM USING THE MODULE BOARD - The socket of the present invention includes a lid having a first protrusion on the reverse side, and a first terminal connected electrically to the first protrusion, and a main body having a second terminal on the upside, and a third terminal connected electrically to the second terminal on the reverse side, in which an electronic component is contained in the main body, and the first terminal and the second terminal are connected electrically in the space enclosed and fixed by the lid. The inspection system of the present invention includes a socket of the present invention, and an evaluation board for connecting a third terminal of the socket electrically to the inspection apparatus of the electronic component, and propagating an inspection signal. | 04-22-2010 |
20100182854 | OPERATION GUARANTEE SYSTEM - An operation guarantee system includes a decoder circuit, a comparison circuit, a CPU circuit, a frequency adjustment circuit and a DQ adjustment circuit. The comparison circuit compares a test data signal input from the decoder circuit with an expected value data signal input from the exterior, and detects the presence or absence of an output error in the decoder circuit. The CPU circuit controls the frequency adjustment circuit and the DQ adjustment circuit to vary a frequency of a clock signal input to an external memory and a delay amount of the data signal. In addition, the CPU circuit acquires a result of detection of the comparison circuit under various conditions. Then, the CPU circuit determines an appropriate frequency of the clock signal input to the external memory based on a relationship between the various conditions and the presence or absence of the output error. | 07-22-2010 |
20110023078 | CONTENT RECEIVER AND CONTENT TRANSMITTER - A transmitting party adds reproduction time information to each transport packet to form an extended transport packet, encapsulates the extended transport packet, adds capsule counter information, and transmits the capsule. A receiving party has a storage means, and transmits a re-send request including the capsule count information to the transmitting party when a packet loss occurs. At the receiving party, the re-sent data received overwrites data in its original storage region. At reproduction, the receiving party decodes the data after compensating for jitter referring to reproduction time information. Accordingly, a packet loss or jitter is compensated for at both transmitting and receiving parties in a communications network such as the Internet so as to prevent the occurrence of a decoding error at the receiving party. | 01-27-2011 |
20110181788 | CIRCUIT MODULE FOR USE IN DIGITAL TELEVISION RECEIVER FOR RECEIVING DIGITAL TELEVISION BROADCASTING WAVE SIGNAL - A circuit module for a digital television receiver is formed by multi-layering a decoder LSI including a CPU and a decoder, a decoder layer substrate including a CA interface circuit, a demodulation function layer substrate including a demodulator, and an extension function layer substrate including a communication controller. The demodulation function layer substrate and the extension function layer substrate can be selectively multi-layered to the decoder layer substrate in response to a broadcasting system of a digital television signal or a type of a CA module. | 07-28-2011 |
20110187708 | IMAGE PROCESSOR AND IMAGE PROCESSING METHOD - An image processor includes a 3D image output section for outputting a 3D image; an average parallax calculator for calculating a parallax level of each predetermined pixel based on a lefty-eye image and a right-eye image, and calculating an average screen parallax level based on the parallax level; a data acquisition section for detecting the type of 3D image or a characteristic of synthesized image; a correcting and synthesizing section for correcting the average screen parallax level depending on the type of 3D image or the characteristic of synthesized image, setting a corrected average parallax level as parallax to be added to the caption or OSD, adding the parallax to the caption or OSD, and synthesizing a caption or OSD with parallax; and an image synthesizer for superimposing the caption or OSD synthesized image with parallax on the 3D image. | 08-04-2011 |
20120063110 | MODULE BOARD - A module board has a configuration in which a first circuit board, a first composite sheet, a second circuit board, a second composite sheet, and a third circuit board are laminated in this order. Inspection terminals are arranged in a matrix shape in a predetermined region on an upper surface of the third circuit board. Electronic components are mounted on the first and second circuit boards. The inspection terminals are electrically connected to the electronic components mounted on the first and second circuit boards through vias and wiring patterns. | 03-15-2012 |
Patent application number | Description | Published |
20090270111 | WIRELESS COMMUNICATION SYSTEM AND BASE STATION ACCOMMODATION SERVER - To appropriately set the location registration area according to the installation location of the femto base station. Provided is a base station accommodation server that is coupled to a location management server accommodating at least one of first base station coupled to a first communication network, and accommodates at least one of second base station connected to a second communication network. The base station is configured to determine a location management group identifier of the second base station based on a location management group identifier of the first base station that is present at a location from which the second base station can receive the location management group identifier broadcast by the first base station. | 10-29-2009 |
20100020812 | COMMUNICATION SYSTEM AND ACCESS GATEWAY APPARATUS - A communication system comprising a home server, an access gateway, and a policy server, wherein the policy server transmits, to the first access gateway, a link creation request for associating a communication path of the first terminal and a communication path of the second terminal; and the access gateway sets a fifth communication path which connects the first communication path and the third communication path upon receiving the link creation request, records information on the set fifth communication path in the communication path management information, and transmits the data from the first terminal via the first communication path to the second terminal via the fifth communication path and the third communication path based on the communication path management information. | 01-28-2010 |
20100184432 | MOBILE COMMUNICATION SYSTEM FOR LOW POWER CONSUMPTION, CALL CONTROL SERVER AND ACCESS GATEWAY - It is provided a mobile communication system comprising base stations, call control servers and access gateways. The call control servers cause a mobile terminal accommodated in one of the control server to transmit the location registration request so that the mobile terminal accommodates in another control server according to a processing amount of control signals. The base station selects a second call control server into which the one of the mobile terminals is to be newly accommodated. The one of the call control server switches to a power-saving state after the mobile terminal is accommodated into the another call control server. | 07-22-2010 |
20110228697 | Mobile Communication System and Communication Method - Disclosed is a mobile communication system preventing the transmission of acknowledgements at a burst leading to a decrease in throughput caused by detecting the retransmission and the congestion of packets at the protocol of a transport layer. In a mobile communication system including a mobile terminal and gateway equipment for relaying a packet between a communication partner and the mobile terminal, if the gateway equipment receives the acknowledgement from the mobile terminal, the gateway equipment waits the transmission of the received acknowledgement to the communication partner until the estimated transmission time passes from the time at which the gateway equipment receives the previous acknowledgement from the mobile terminal. | 09-22-2011 |
20120177004 | Network System and Network Apparatus - After a first base station connects to a first mobile terminal, a first GW (gateway) receives a request for connection between the first mobile terminal and a second GW and identifiers of the second GW and the first mobile terminal and transmits identifiers of the first mobile terminal and the first GW to the second GW. The second GW transmits an MPLS allocation flag to the first GW. The first GW transmits an MPLS allocation signal including an identifier of the first mobile terminal to the second GW via a second NW (network) apparatus. The first base station receives an identifier of the first GW and the MPLS allocation flag from the first GW via a management server and transmits the MPLS allocation signal including the identifier of the first mobile terminal to the first GW via a first NW apparatus. | 07-12-2012 |
Patent application number | Description | Published |
20090009635 | SOLID-STATE IMAGING DEVICE AND IMAGING APPARATUS - A solid-state imaging device includes a pixel array unit configured by arranging plural unit pixels including charge generating units and output transistors that output processing object signals corresponding to charges generated by the charge generating units, an imaging-condition determining unit that determines whether a large light-amount imaging condition, when an amount of light larger than that of light representing a saturation level is made incident on the charge generating units, is satisfied, and a control unit that performs control, on condition that the imaging-condition determining unit determines that the large light-amount imaging condition is satisfied, to correct an output signal based on processing object signals outputted from the unit pixels such that a harmful effect due to the large light-amount imaging condition is suppressed in the output signal. | 01-08-2009 |
20090086067 | SOLID-STATE IMAGING DEVICE, DRIVING CONTROL METHOD THEREOF, AND IMAGING APPARATUS - A solid-state imaging includes a comparing circuit, an inverting circuit, and a masking circuit, and performs column parallel AD conversion processing of analog pixel signals outputted from a plurality of pixels arranged in a two-dimensional matrix form. The comparing circuit outputs a difference signal obtained by comparing each of the pixel signals outputted from the pixels with a reference signal having a ramp waveform. The inverting circuit inverts a logic of the difference signal outputted from the comparing circuit. The masking circuit masks an output of an output signal of the inverting circuit to a circuit in a subsequent stage during an input offset canceling period in which the comparing circuit is canceling an input offset between the pixel signal and the reference signal. | 04-02-2009 |
20110292265 | Integrating A/D converter, integrating A/D conversion method, solid-state imaging device and camera system - An integrating A/D converter includes: a comparator comparing an input voltage to a reference voltage having a ramp waveform, a voltage value of which linearly varies with time; a higher-order bit counter starting operation or stopping operation triggered by inversion of an output signal of the comparator and outputting higher order bits by performing counting in a cycle of a clock signal; and a time-to-digital converter latching phase information of the clock signal corresponding to plural signals obtained by delaying an output signal of the comparator and decoding the latched values to output lower order bits having higher resolution than the clock cycle. | 12-01-2011 |
20120038804 | SOLID-STATE IMAGING DEVICE, DRIVING CONTROL METHOD THEREOF, AND IMAGING APPARATUS - A solid-state imaging including a comparing circuit, an inverting circuit, and a masking circuit, and that performs column parallel AD conversion processing of analog pixel signals output from a plurality of pixels arranged in a two-dimensional matrix form. The comparing circuit outputs a difference signal obtained by comparing each of the pixel signals outputted from the pixels with a reference signal having a ramp waveform. The inverting circuit inverts a logic of the difference signal outputted from the comparing circuit. The masking circuit masks an output of an output signal of the inverting circuit to a circuit in a subsequent stage during an input offset canceling period in which the comparing circuit cancels an input offset between the pixel signal and the reference signal. | 02-16-2012 |
Patent application number | Description | Published |
20100329389 | RECEPTION DEVICE, TRANSMISSION DEVICE, RADIO TRANSMISSION/RECEPTION SYSTEM, AND RADIO RECEPTION METHOD - Orthogonal converters perform orthogonal conversion on the N time-series data extracted from a received radio signal. Multi-user detectors extract transmitted signals from respective transmission devices, from the time-series data which has been subjected to the orthogonal conversion. Inverse orthogonal converters perform inverse orthogonal conversion on the extracted transmitted signal. Rectangular filter circuits remove Mh time-series data at the front end and Mt time-series data at the rear end, from the transmitted signal which has been subjected to the inverse orthogonal conversion, so as to extract Nw time-series data. Deinterleaver circuits deinterleave the aforementioned time-series data. Decoders decode the time-series data for output. | 12-30-2010 |
20110129041 | RECEIVER DEVICE, COMMUNICATION SYSTEM AND RECEIVING METHOD - A receiver device receives a signal inputted to one or a plurality of ports as a plurality of received signals, and includes: a phase offset estimating unit that, on the basis of a unique word of each signal block contained in said received signal, estimates the phase offset, and a phase offset compensating unit that, on the basis of a phase offset estimated by said phase offset estimating unit, compensates the phase offset; the receiver device uses a known signal component (unique word) contained in a frequency-domain equalized signal to compensate the phase offset, whereby it compensates complex phase offset fluctuation, and estimates the phase offset of a signal obtained at each port. | 06-02-2011 |
20120307739 | SPATIAL MULTIPLEXING WIRELESS TRANSMISSION SYSTEM, SPATIAL MULTIPLEXING WIRELESS TRANSMISSION METHOD AND COMPUTER PROGRAM - A spatial multiplexing wireless transmission system is formed by a base station, and by a plurality of terminal stations that are provided with a plurality of antennas. The base station is provided with an information signal generating portion, a control signal generating portion, a transmission frame generating portion, a multiple beamforming portion, a transmission/reception switching portion, a reception signal processing portion, a propagation environment estimating portion, and an antenna information generating portion. At least one of the terminal stations is provided with a transmission/reception switching portion, a reception signal processing portion, a decoding portion, an antenna information extracting portion, an antenna information generating portion, an transmitting portion, a battery, a remaining battery detecting portion, a transmission request extracting portion, and a propagation environment estimating portion. | 12-06-2012 |
20120315043 | TRANSMISSION METHOD, RECEPTION METHOD, TRANSMITTER APPARATUS, AND RECEIVER DEVICE - A polarization state of a transmission signal can be changed at a high speed based on a symbol-rate By switching a first switch, a second switch, and a third switch with time, one of an X-polarized wave_I-signal as a Y-polarized wave_I-signal, a signal caused by performing logical inversion for an X-polarized wave_I-signal, an X-polarized wave_Q-signal and a signal caused by logical inversion for an X-polarized wave_Q-signal is input to a second modulator. Further, by switching the first switch, the second switch and the third switch with time, the second modulator is input one of the X-polarized wave_I-signal as the Y-polarized wave_Q-signal, the X-polarized wave_I-signal, the signal caused by performing logical inversion for the X-polarized wave_I-signal, the X-polarized wave_Q-signal and the signal caused by performing logical inversion for the X-polarized wave_Q-signal. Thereby, a polarization state of a transmission signal can be changed at high speed based on a symbol-rate speed. | 12-13-2012 |
20130028595 | FREQUENCY OFFSET ESTIMATING METHOD AND FREQUENCY OFFSET ESTIMATING APPARATUS - When a circuit that calculates a frequency offset using a shape of a frequency spectrum is implemented by hardware, the circuit size can be reduced. A frequency offset estimating method for estimating the difference between a carrier frequency of a reception signal and the frequency of an output signal of a local oscillator includes performing a discrete Fourier transform on a reception signal previously sampled at a predetermined sampling frequency and outputting a frequency spectrum with a plurality of frequency components, calculating an average power of the frequency spectrum, calculating a threshold by adding a predetermined value to the average power or power obtained by multiplying the average power by a constant, performing 1-bit quantization on powers of the frequency components of the frequency spectrum based on the threshold, and calculating a centroid frequency by multiplying frequencies of the frequency components by powers of 1-bit quantized frequency components, calculating the sum of multiplied products, and dividing the sum of the products by the sum of the powers of the 1-bit quantized frequency components of the frequency spectrum. | 01-31-2013 |
20130039205 | WIRELESS COMMUNICATION METHOD, BASE STATION, WIRELESS COMMUNICATION SYSTEM, AND COMMUNICATION APPARATUS - Provided are a wireless communication method, a base station, a wireless communication system and a communication apparatus whereby an interference power is calculated from an estimated propagation channel estimation result and the transmission power is controlled based on the interference power or the interference is suppressed by controlling the directivity, thereby increasing the transmission capacity. A propagation channel estimation circuit performs propagation channel estimation from a response signal transmitted from a terminal station and estimates a propagation channel estimation result. An interference power calculation circuit measures each interference power from a signal of each sub-carrier received by each of wireless units, and calculates an interference power for each sub-carrier from the propagation channel estimation result estimated by the propagation channel estimation circuit. When the calculated interference power is equal to or more than a predetermined threshold, an interference suppression signal generation circuit changes the transmission power and generates an interference suppression signal. | 02-14-2013 |
20130070874 | FREQUENCY OFFSET ESTIMATION APPARATUS, FREQUENCY OFFSET ESTIMATION METHOD, AND RECEPTION METHOD - Provided is a frequency offset estimation apparatus that appropriately estimates and compensates for a frequency offset of a received signal when estimating the frequency offset which is the difference between a carrier frequency of the received signal and the frequency of an output signal of a local oscillator. The frequency offset estimation apparatus converts the received signal sampled in advance with a predetermined sampling frequency into a frequency spectrum having N frequency components, limits a frequency band of negative frequency components from 1 to N/2 of the frequency spectrum and a frequency band of positive frequency components from N/2+1 to N of the frequency spectrum, calculates the sum of the squares of the positive frequency components of the frequency spectrum that have been subjected to frequency band limitation and the sum of the squares of the negative frequency components of the frequency spectrum that have been subjected to frequency band limitation to calculate power of the positive frequency components and power of the negative frequency components, and cyclically shifts all frequency components of the frequency spectrum in a frequency domain until the absolute value of a power difference between the power of the positive frequency components and the power of the negative frequency components is less than or equal to a predetermined threshold value, and estimates the frequency offset based on a shift amount until the absolute value is less than or equal to the threshold value. | 03-21-2013 |
20150036634 | WIRELESS COMMUNICATION METHOD, BASE STATION, WIRELESS COMMUNICATION SYSTEM, AND COMMUNICATION APPARATUS - Provided are a wireless communication method, a base station, a wireless communication system and a communication apparatus whereby an interference power is calculated from an estimated propagation channel estimation result and the transmission power is controlled based on the interference power or the interference is suppressed by controlling the directivity, thereby increasing the transmission capacity. A propagation channel estimation circuit performs propagation channel estimation from a response signal transmitted from a terminal station and estimates a propagation channel estimation result. An interference power calculation circuit measures each interference power from a signal of each sub-carrier received by each of wireless units, and calculates an interference power for each sub-carrier from the propagation channel estimation result estimated by the propagation channel estimation circuit. When the calculated interference power is equal to or more than a predetermined threshold, an interference suppression signal generation circuit changes the transmission power and generates an interference suppression signal. | 02-05-2015 |
20150256246 | TRANSMITTER AND WIRELESS COMMUNICATION METHOD - A transmitter that has a plurality of antenna elements and executes spatially multiplexed transmission of data to a receiver via the antenna elements, where the data is weighted utilizing a transmission weight. Channel state information, which indicates propagation characteristics between the antenna elements and an antenna element of the receiver, is obtained or estimated. When the channel state information has been updated, an updated transmission weight is computed based on the previous channel state information before the updating thereof and/or the updated channel state information, and the previous transmission weight before the updating thereof, which was computed for the previous channel state information. | 09-10-2015 |
20150289142 | WIRELESS COMMUNICATION APPARATUS, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION METHOD - A wireless communication apparatus is provided that is capable of performing setting of a wireless LAN access point so that frequency utilization efficiency of an entire wireless communication system that includes wireless LAN access points of different manufacturers and different model numbers is improved. A wireless communication system which performs setting necessary for a wireless LAN access point constituting a wireless communication network to operate includes: an information collection unit which collects setting information set in the wireless LAN access point and wireless environment information in the wireless LAN access point, a parameter calculation unit which obtains a parameter to be set for the wireless LAN access point, which is a collection source, based on the collected setting information and the collected wireless environment information, and a parameter setting unit which transmits the obtained parameter to the wireless LAN access point, which is a collection source, over a network and performs setting of the parameter. | 10-08-2015 |
Patent application number | Description | Published |
20120070159 | SIGNAL GENERATING CIRCUIT, OPTICAL SIGNAL TRANSMITTING APPARATUS, SIGNAL RECEIVING CIRCUIT, METHOD FOR ESTABLISHING OPTICAL SIGNAL SYNCHRONIZATION, AND OPTICAL SIGNAL SYNCHRONIZATION SYSTEM - To enable signal position detection, frequency offset compensation, clock offset compensation, and chromatic dispersion amount estimation in a communication system based on coherent detection using an optical signal, even on a signal having a great offset in an arrival time depending on a frequency due to chromatic dispersion. An optical signal transmitting apparatus generates specific frequency band signals having power concentrated on two or more specific frequencies and transmits a signal including the specific frequency band signals. An optical signal receiving apparatus converts a received signal into a digital signal, detects positions of the specific frequency band signals from the converted digital signal, estimates frequency positions of the detected specific frequency band signals, and detects a frequency offset between an optical signal receiving apparatus and an optical signal transmitting apparatus. Moreover, the optical signal receiving apparatus detects a clock offset between the optical signal receiving apparatus and the optical signal transmitting apparatus from an interval between the estimated frequency positions of the specific frequency band signals. Furthermore, the optical signal receiving apparatus estimates temporal positions of the detected specific frequency band signals and detects a chromatic dispersion amount from a difference between the temporal positions of the specific frequency band signals corresponding to different frequencies. | 03-22-2012 |
20120099460 | RADIO COMMUNICATION METHOD, RADIO COMMUNICATION SYSTEM, RADIO BASE STATION, AND RADIO TERMINAL STATION - This radio communication method is used to perform spatial multiplexing communication between cells in the overlap cell environment. In the MU-MIMO overlap cell environment, when a null is formed between a radio base station and a radio terminal station belonging to different cells, a first set of a “call signal” and a “response signal” is used to perform mutual detection with the radio base station and the radio terminal station belonging to different cells, and then a null is formed so as not to cause interference of radio waves between the radio base station and the radio terminal station belonging to different cells. At this time, the addresses of the radio base station and the radio terminal station are used to discriminate whether the radio base station and the radio terminal station belong to the same cell or different cells. | 04-26-2012 |
20120099864 | CHROMATIC DISPERSION VALUE CALCULATING APPARATUS, OPTICAL SIGNAL RECEIVING APPARATUS, OPTICAL SIGNAL TRANSMITTING APPARATUS, AND CHROMATIC DISPERSION VALUE CALCULATION METHOD - In order to compensate for chromatic dispersion caused by optical fiber transmission in a communication system with coherent detection using optical signals, specific frequency band signals are used to enable estimation of a chromatic dispersion value. The chromatic dispersion value calculating apparatus is provided with: a signal distributing circuit which distributes, into a plurality of signal sequences, an electrical digital signal converted from received optical signals of an optical signal transmitted by an optical signal transmitting apparatus, in which a known signal with concentrated frequency components of a plurality of specific frequencies is appended to a signal generated from a transmission data sequence; a plurality of frequency band pass filter circuits, each of which separating only each of a plurality of specific frequency components in which the known signal is included from each of the signal sequences distributed by the signal distributing circuit, and passing each of the specific frequency components therethrough; a plurality of power calculating circuits which are provided so as to correspond respectively to the plurality of frequency band pass filter circuits and which calculate power values of signals output from the corresponding frequency band pass filter circuits; a delay time calculating circuit which detects times at which power has the maximum value or times at which the power exceeds a predetermined threshold value, respectively from signal sequences of the power values output from the plurality of power calculating circuits, and which compares the detected times; and a chromatic dispersion value calculating circuit which calculates a chromatic dispersion value based on a comparison result of the times by the delay time calculating circuit. | 04-26-2012 |
20120106618 | METHOD FOR RECEIVING FREQUENCY DOMAIN MULTIPLEXED SIGNAL AND DEVICE FOR RECEIVING FREQUENCY DOMAIN MULTIPLEXED SIGNAL - A frequency domain multiplexed signal receiving method which decodes received signals that are multiplexed in a frequency domain, includes: a digital signal acquisition step of acquiring digital signals from the received signals that are multiplexed in the frequency domain; an offset discrete Fourier transform step of applying an offset discrete Fourier transform to odd discrete point numbers based on the acquired digital signals; and a decode step of decoding frequency domain digital signals in the frequency domain obtained by the offset discrete Fourier transform, and that are the frequency domain digital signals of one or more frequency channels. | 05-03-2012 |
20140328280 | Radio Communication Method, Radio Communication System, Radio Base Station, and Radio Terminal Station - This radio communication method is used to perform spatial multiplexing communication between cells in the overlap cell environment. In the MU-MIMO overlap cell environment, when a null is formed between a radio base station and a radio terminal station belonging to different cells, a first set of a “call signal” and a “response signal” is used to perform mutual detection with the radio base station and the radio terminal station belonging to different cells, and then a null is formed so as not to cause interference of radio waves between the radio base station and the radio terminal station belonging to different cells. At this time, the addresses of the radio base station and the radio terminal station are used to discriminate whether the radio base station and the radio terminal station belong to the same cell or different cells. | 11-06-2014 |
20150078762 | SIGNAL GENERATING CIRCUIT, OPTICAL SIGNAL TRANSMITTING APPARATUS, SIGNAL RECEIVING CIRCUIT, METHOD FOR ESTABLISHING OPTICAL SIGNAL SYNCHRONIZATION, AND OPTICAL SIGNAL SYNCHRONIZATION SYSTEM - To enable signal position detection, frequency offset compensation, clock offset compensation, and chromatic dispersion amount estimation in a communication system based on coherent detection using an optical signal, even on a signal having a great offset in an arrival time depending on a frequency due to chromatic dispersion. An optical signal transmitting apparatus generates specific frequency band signals having power concentrated on two or more specific frequencies and transmits a signal including the specific frequency band signals. An optical signal receiving apparatus converts a received signal into a digital signal, detects positions of the specific frequency band signals from the converted digital signal, estimates frequency positions of the detected specific frequency band signals, and detects a frequency offset between an optical signal receiving apparatus and an optical signal transmitting apparatus. Moreover, the optical signal receiving apparatus detects a clock offset between the optical signal receiving apparatus and the optical signal transmitting apparatus from an interval between the estimated frequency positions of the specific frequency band signals. Furthermore, the optical signal receiving apparatus estimates temporal positions of the detected specific frequency band signals and detects a chromatic dispersion amount from a difference between the temporal positions of the specific frequency band signals corresponding to different frequencies. | 03-19-2015 |
20150078765 | SIGNAL GENERATING CIRCUIT, OPTICAL SIGNAL TRANSMITTING APPARATUS, SIGNAL RECEIVING CIRCUIT, METHOD FOR ESTABLISHING OPTICAL SIGNAL SYNCHRONIZATION, AND OPTICAL SIGNAL SYNCHRONIZATION SYSTEM - To enable signal position detection, frequency offset compensation, clock offset compensation, and chromatic dispersion amount estimation in a communication system based on coherent detection using an optical signal, even on a signal having a great offset in an arrival time depending on a frequency due to chromatic dispersion. An optical signal transmitting apparatus generates specific frequency band signals having power concentrated on two or more specific frequencies and transmits a signal including the specific frequency band signals. An optical signal receiving apparatus converts a received signal into a digital signal, detects positions of the specific frequency band signals from the converted digital signal, estimates frequency positions of the detected specific frequency band signals, and detects a frequency offset between an optical signal receiving apparatus and an optical signal transmitting apparatus. Moreover, the optical signal receiving apparatus detects a clock offset between the optical signal receiving apparatus and the optical signal transmitting apparatus from an interval between the estimated frequency positions of the specific frequency band signals. Furthermore, the optical signal receiving apparatus estimates temporal positions of the detected specific frequency band signals and detects a chromatic dispersion amount from a difference between the temporal positions of the specific frequency band signals corresponding to different frequencies. | 03-19-2015 |
Patent application number | Description | Published |
20090009162 | EDDY CURRENT FLAW DETECTION PROBE - Disclosed is an eddy current flaw detection probe that is capable of pressing itself against an inspection target whose curvature varies. A flaw sensor is configured by fastening a plurality of coils to a flexible substrate that faces the surface of the inspection target. A first elastic body is positioned opposite the inspection target for the flaw sensor, is obtained by stacking two or more elastic plates, and has an elastic coefficient that varies in a longitudinal direction. A second elastic body is a porous body positioned between the flexible substrate and the first elastic body. A pressure section is employed to press the first elastic body toward the inspection target. | 01-08-2009 |
20090312980 | System for detecting position of underwater vehicle - A position detection system for an underwater inspection unit (underwater vehicle) is capable of being improved in detection accuracy of its position. | 12-17-2009 |
20100226541 | SYSTEM AND METHOD FOR DETECTING POSITION OF UNDERWATER VEHICLE - An object of the invention is to provide a system for detecting the position of an underwater vehicle that enables an improvement in the accuracy of detecting the position of the underwater vehicle. | 09-09-2010 |
20110057646 | Apparatus and method for sensing position of non-orbital movable truck - There is provided a position sensing apparatus when a non-orbital movable truck moves over a spherical surface, a cylindrical surface, or a flat surface, which is capable of position sensing even when, e.g., the non-orbital movable truck circumferentially moves over the spherical surface or the cylindrical surface to be hidden from the position sensing apparatus. A second linear encoder is disposed which includes a wire in a main body thereof to output an amount by which the wire is withdrawn as an encoder value. The tip of the wire of the second linear encoder is fixed to a position at the non-orbital movable truck to which the tip of the wire of a linear encoder is fixed. From an amount by which the wire of the linear encoder is withdrawn and the amount by which the wire of the second linear encoder is withdrawn, the position of the non-orbital movable truck is calculated in a calculation device. | 03-10-2011 |
20150090175 | System for Attitude Control of Underwater Vehicle and Method for Attitude Control of Underwater Vehicle - A system for attitude control of an underwater vehicle | 04-02-2015 |