Patent application number | Description | Published |
20090258403 | NOVEL ALDOLASE, AND METHOD FOR PRODUCING OPTICALLY ACTIVE IHOG AND MONATIN - The present invention relates to a method for producing optically active IHOG, which can in turn be used for the production of monatin. The present invention further relates to a method for producing optically active monatin, and aldolase used for these methods. As such, the present invention enables the synthesis of 4-(Indole-3-ylmethyl)-4-hydroxy-2-oxoglutaric acid with high optical purity, which is useful as an intermediate in the synthesis of optically active monatin, from indole pyruvic acid and pyruvic acid (or oxaloacetic acid). | 10-15-2009 |
20090259052 | PROCESSES OF PRODUCING GLUTAMIC ACID COMPOUNDS AND PRODUCTION INTERMEDIATES THEREFORE AND NOVEL INTERMEDIATE FOR THE PROCESSES - The present invention relates to processes of producing glutamic acid compounds, for example, monatin, which are useful as, for example, production intermediates for sweetener or pharmaceutical products. | 10-15-2009 |
20090318528 | HYDRATE CRYSTALS - New (2R,4R) monatin monosodium salt hydrate crystals characterized by having specific characteristic X-ray diffraction peaks provide general-purpose, stable, and safe monatin sodium salt crystals incorporating no organic solvent. These crystal may be prepared by a method that requires no organic solvent in the crystallization, separation, and drying steps. These crystal are useful as sweeteners and for the preparation of orally consumed products, such as foods, beverages, pharmaceutical products, topical pharmaceutical products, and feeds containing general-purpose, stable, and safe monatin sodium salt crystals. | 12-24-2009 |
20100330245 | CRYSTALS OF NON-NATURAL-TYPE STEREOISOMER SALT OF MONATIN AND USE THEREOF - The present invention provides salt crystals of non-natural stereoisomer forms of monatin and to the use thereof. | 12-30-2010 |
20110189368 | CRYSTALS OF NON-NATURAL-TYPE STEREOISOMER SALT OF MONATIN AND USE THEREOF - The present invention provides salt crystals of non-natural stereoisomer forms of monatin and to the use thereof. | 08-04-2011 |
20110218227 | HYDRATE CRYSTALS - New (2R,4R) monatin monosodium salt hydrate crystals characterized by having specific characteristic X-ray diffraction peaks provide general-purpose, stable, and safe monatin sodium salt crystals incorporating no organic solvent. These crystal may be prepared by a method that requires no organic solvent in the crystallization, separation, and drying steps. These crystal are useful as sweeteners and for the preparation of orally consumed products, such as foods, beverages, pharmaceutical products, topical pharmaceutical products, and feeds containing general-purpose, stable, and safe monatin sodium salt crystals. | 09-08-2011 |
20120289574 | HYDRATE CRYSTALS - New (2R,4R) monatin monosodium salt hydrate crystals characterized by having specific characteristic X-ray diffraction peaks provide general-purpose, stable, and safe monatin sodium salt crystals incorporating no organic solvent. These crystal may be prepared by a method that requires no organic solvent in the crystallization, separation, and drying steps. These crystal are useful as sweeteners and for the preparation of orally consumed products, such as foods, beverages, pharmaceutical products, topical pharmaceutical products, and feeds containing general-purpose, stable, and safe monatin sodium salt crystals. | 11-15-2012 |
20120295004 | CRYSTALS OF NON-NATURAL-TYPE STEREOISOMER SALT OF MONATIN AND USE THEREOF - The present invention provides salt crystals of non-natural stereoisomer forms of monatin and to the use thereof. | 11-22-2012 |
20130011538 | CRYSTAL OF MULTIVALENT METAL SALT OF MONATIN - To provide a novel monatin crystal capable of forming a sweetener composition which is less likely to be degraded even when being exposed to high temperature and high humidity conditions in the coexistence of a reducing sugar. It was found that the object can be achieved by a crystal of a multivalent metal salt of (2R,4R)-monatin. | 01-10-2013 |
20130164792 | METHOD FOR PRODUCING CRYSTALS OF MUTIVALENT METAL SALT OF (2R, 4R) MONATIN - The present invention provides a method of efficiently producing a crystal of a (2R,4R)Monatin multivalent metal salt that has a good sweetness property and is excellent in storage stability. Specifically, the present invention provides the method of producing the crystal of the (2R,4R)Monatin multivalent metal salt comprising allowing an aldehyde or one or two or more enzymes capable of forming (2R,4R)Monatin from (2S,4R)Monatin to be acted on an aqueous solution containing the (2S,4R)Monatin in the presence of a multivalent metal ion to obtain the crystal of the (2R,4R)Monatin multivalent metal salt. The aldehyde may preferably be an aromatic aldehyde. The one or two or more enzyme may preferably be a racemase or one or more aminotransferases. The multivalent metal may preferably be a bivalent alkaline earth metal. | 06-27-2013 |
20140234916 | METHOD FOR PRODUCING MONATIN USING AN L-AMINO ACID AMINOTRANSFERASE - The present invention provides a methodology for improving a yield of 2R,4R-Monatin. Specifically, the present invention provides a method for producing 2S,4R-Monatin or a salt thereof, comprising contacting 4R-IHOG with an L-amino acid aminotransferase in the presence of an L-amino acid to form the 2S,4R-Monatin; a method for producing 2R,4R-Monatin or a salt thereof, comprising isomerizing the 2S,4R-Monatin to form the 2R,4R-Monatin; and the like. These production methods may further comprise condensing indole-3-pyruvate and pyruvate to form the 4R-IHOG, and deaminating a tryptophan to form the indole-3-pyruvate. | 08-21-2014 |
20140260840 | MACHINING APPARATUS - In a machining apparatus, complete control of the movement, stopping, speed and displacement of a tool mounted on a rotating face plate is achieved by using a first motor to cause rotation of the face plate, causing the first motor to rotate a ring gear along with the face plate, controlling the relative speeds of the face plate and the ring gear by means of a second motor and a differential mechanism, and moving the tool on the face plate in response to a difference in the rotational speeds of the face plate and the ring gear. | 09-18-2014 |
Patent application number | Description | Published |
20090180566 | TRANSMISSION APPARATUS AND A RECEPTION APPARATUS IN A MULTICARRIER TRANSMISSION SYSTEM AND A TRANSMISSION METHOD AND A RECEPTION METHOD USING THE MULTICARRIER TRANSMISSION SYSTEM - An object is to reduce inter-carrier interference caused by frequency fluctuations, amplitude fluctuations, phase fluctuations, or the like without reducing a transmission efficiency. On a receiving end, a canceling filter section ( | 07-16-2009 |
20090268837 | MULTICARRIER MODULATION SCHEME AS WELL AS TRANSMISSION APPARATUS AND RECEPTION APPARATUS USING THE SCHEME - An object is to generate a pilot signal for estimating transmission characteristic of a transmission channel which is suitable for the OFDM/OQAM multicarrier modulation. A phase reference pilot symbol of which a modulation amplitude is suppressed to zero, and an amplitude reference pilot signal obtained through modulation performed by using an amplitude known to a reception end are transmitted from a transmission end, and the transmission characteristic of the transmission channel is estimated and compensated by using the phase reference pilot signal and the amplitude reference pilot signal at the reception end. Thus, it is possible to simplify frame generation process performed at the transmission end, and reduce transmission power for the phase reference pilot signal. | 10-29-2009 |
20100316164 | Methods and Apparatus for Reducing Average-to-Minimum Power Ratio in Communications Signals - A baseband circuit for a communications transmitter includes a baseband modulator, a pulse-shaping filter, and an AMPR reduction circuit. The baseband modulator is configured to generate a sequence of symbols formatted in accordance with a non-constant envelope modulation scheme. The pulse-shaping filter is configured to band-limit the sequence of samples to provide a sequence of samples. The AMPR reduction circuit is configured to analyze and modify one or more samples in the sequence of samples, if a sample in the sequence of samples that has been previously analyzed by the AMPR reduction circuit is determined to have a magnitude less than a predetermined low-magnitude threshold. | 12-16-2010 |
20110116535 | METHODS AND APPARATUS FOR REDUCING THE AVERAGE-TO-MINIMUM MAGNITUDE RATIO OF COMMUNICATIONS SIGNALS IN COMMUNICATIONS TRANSMITTERS - A communications transmitter configured to reduce the average-to-minimum magnitude ratio (AMR) of a communications signal includes a symbol mapper, a pulse-shaping filter, an AMR reduction circuit, and a modulator. The symbol mapper operates to generate a sequence of symbols from a binary-source data stream containing a message to be transmitted, and the pulse-shaping filter generates a baseband signal based on the sequence of symbols. The AMR reduction circuit is configured to compare a magnitude of a local minimum of samples of the baseband signal to various magnitude threshold levels, and to modify the baseband signal in one of two manners depending on the relationship of the magnitude of the local minimum and the various threshold levels. Finally, the modulator operates to modulate a carrier signal based on the modulation information contained in the modified baseband signal. | 05-19-2011 |
20110305171 | TRANSMISSION CIRCUIT AND TRANSMISSION METHOD - A transmission circuit that performs modulation based on a phase difference signal and an amplitude signal includes an asymmetrical phase rotation device. The asymmetrical phase rotation device performs an operation of subtracting 2π from a value of the phase difference signal when the value of the phase difference signal is greater than a predetermined positive threshold value, or an operation of adding 2π to the value of the phase difference signal when the value of the phase difference signal is less than a predetermined negative threshold value. Accordingly, the transmission circuit has distortion reduction characteristics improved uniformly over a range of frequencies higher or lower than a carrier wave band. | 12-15-2011 |
20110305292 | NONLINEAR FILTER AND TRANSMISSION CIRCUIT - A nonlinear filter includes: a determination unit that determines, based on I and Q signals inputted into the determination unit, whether or not to perform pulse insertion; a rotation detector that detects a rotation direction of the I and Q signals on an IQ plane with respect to the origin of the IQ plane; a pulse generator that generates, when the determination unit determines to perform the pulse insertion, a pulse of which at least one of the direction and the magnitude is determined in accordance with at least the detected rotation direction; and an adder that inserts the pulse into the I and Q signals and outputs resultant I and Q signals. | 12-15-2011 |
20120076220 | TRANSMISSION APPARATUS AND A RECEPTION APPARATUS IN A MULTICARRIER TRANSMISSION SYSTEM AND A TRANSMISSION METHOD AND A RECEPTION METHOD USING THE MULTICARRIER TRANSMISSION SYSTEM - Inter-carrier interference caused by frequency fluctuations, amplitude fluctuations, phase fluctuations, or the like is reduced without reducing a transmission efficiency. A receiving end has a canceling filter section that alleviates the inter-carrier interference caused by the frequency fluctuations, the amplitude fluctuations, the phase fluctuations, or the like through filtering processing. A transmitting end has a precoding section that facilitates determination of demodulation data in a vector demodulation section on the receiving end through precoding processing. Or, the receiving end has a trellis decoding section that decodes the demodulation data through trellis decoding processing. | 03-29-2012 |
20120094727 | POWER AMPLIFICATION CIRCUIT AND COMMUNICATION APPARATUS - Provided is a power amplification circuit capable of quickly and highly accurately preventing an output power and a current of a power amplifier from fluctuating when an antenna load changes. A power amplifier | 04-19-2012 |
Patent application number | Description | Published |
20080198335 | Visible laser beam projector - A visible laser beam projector is arranged to provide information to passengers in a vehicle compartment by projecting a visible laser beam onto a portion in the compartment. The visible laser beam projector is arranged in front of an inner mirror of the compartment and projects the visible laser beam to only a front end portion on the upper surface of an instrument panel of the compartment. Thus, the visible laser beam is allowed to be projected in high intensity while suppressing the probability of its adverse effect on eyes of passengers in the compartment. | 08-21-2008 |
20080238640 | VISIBLE LASER BEAM PROJECTION SYSTEM - A visible laser beam projection system determines a target point of position to which a visible laser beam is to be projected, a start point and a trajectory from the start point and the target point based on data of conditions inside and outside of a vehicle. The system starts projecting the visible laser beam from the start point, moves the visible laser beam while it is being projected along the trajectory and stops the projection of the visible laser beam. The start point, target point and the trajectory may be changed depending on contents to be indicated. | 10-02-2008 |
20080239242 | VISIBLE LASER BEAM PROJECTION SYSTEM AND METHOD OF MOUNTING VISIBLE LASER BEAM PROJECTION DEVICE - A visible laser beam projection system for a vehicle projects visible laser beam onto an instrument panel in a vehicle compartment. The instrument panel is provided with highly reflecting portions, which are scattered on the upper surface of the instrument panel. The highly reflecting portions having a diffuse reflectivity for the wavelength of a visible laser beam higher than that of other portions of the instrument panel The visible laser beam is projected to the highly reflecting portions. | 10-02-2008 |
20080297727 | Spotlight projecting apparatus - An apparatus includes a laser projector and a laser beam ECU that is connected to a vehicle communication apparatus for communicating with an information center that provides a guidance service by an operator. According to an operation guidance by the operator, information indicating a switch to be operated is sent from the information center to the laser beam ECU through the vehicle communication apparatus. Then, the laser beam ECU identifies the switch to be operated based on the information and controls the laser projector to direct a laser beam to the switch to be operated. | 12-04-2008 |
20100295670 | INTERIOR INFORMATION DISPLAY APPARATUS AND LIGHT IRRADIATION APPARATUS USED FOR THE SAME - Information is displayed by irradiating a visible light on a specific position based on at least one of vehicle state information, vehicle surrounding information, and vehicle interior information. For example, the visible light is irradiated on a target switch based on signals indicating an on/off state of a headlamp operation switch and an on/off state of a key switch. A user | 11-25-2010 |
20110210839 | Visible in-vehicle laser beam projector providing variable projection region as function of vehicle speed - A projector projects a visible laser beam onto a region of a vehicle compartment. A control unit controls a direction of projecting the visible laser beam to provide information to at least one occupant in the compartment. The control unit expands the region of an object to which the visible laser beam is projected when the seatbelt has been fastened. | 09-01-2011 |
Patent application number | Description | Published |
20100176511 | SEMICONDUCTOR DEVICE WITH A LINE AND METHOD OF FABRICATION THEREOF - A semiconductor device includes an interlayer insulation film, an underlying line provided in the interlayer insulation film, a liner film overlying the interlayer insulation film, an interlayer insulation film overlying the liner film. The underlying line has a lower hole and the liner film and the interlayer insulation film have an upper hole communicating with the lower hole, and the lower hole is larger in diameter than the upper hole. The semiconductor device further includes a conductive film provided at an internal wall surface of the lower hole, a barrier metal provided along an internal wall surface of the upper hole, and a Cu film filling the upper and lower holes. The conductive film contains a substance identical to a substance of the barrier metal. A highly reliable semiconductor device can thus be obtained. | 07-15-2010 |
20110171828 | SEMICONDUCTOR DEVICE WITH A LINE AND METHOD OF FABRICATION THEREOF - A semiconductor device includes an interlayer insulation film, an underlying line provided in the interlayer insulation film, a liner film overlying the interlayer insulation film, an interlayer insulation film overlying the liner film. The underlying line has a lower hole and the liner film and the interlayer insulation film have an upper hole communicating with the lower hole, and the lower hole is larger in diameter than the upper hole. The semiconductor device further includes a conductive film provided at an internal wall surface of the lower hole, a barrier metal provided along an internal wall surface of the upper hole, and a Cu film filling the upper and lower holes. The conductive film contains a substance identical to a substance of the barrier metal. A highly reliable semiconductor device can thus be obtained. | 07-14-2011 |
20120168949 | SEMICONDUCTOR DEVICE WITH A LINE AND METHOD OF FABRICATION THEREOF - A semiconductor device includes an interlayer insulation film, an underlying line provided in the interlayer insulation film, a liner film overlying the interlayer insulation film, an interlayer insulation film overlying the liner film. The underlying line has a lower hole and the liner film and the interlayer insulation film have an upper hole communicating with the lower hole, and the lower hole is larger in diameter than the upper hole. The semiconductor device further includes a conductive film provided at an internal wall surface of the lower hole, a barrier metal provided along an internal wall surface of the upper hole, and a Cu film filling the upper and lower holes. The conductive film contains a substance identical to a substance of the barrier metal. A highly reliable semiconductor device can thus be obtained. | 07-05-2012 |
20130234334 | SEMICONDUCTOR DEVICE WITH A LINE AND METHOD OF FABRICATION THEREOF - A semiconductor device includes an interlayer insulation film, an underlying line provided in the interlayer insulation film, a liner film overlying the interlayer insulation film, an interlayer insulation film overlying the liner film. The underlying line has a lower hole and the liner film and the interlayer insulation film have an upper hole communicating with the lower hole, and the lower hole is larger in diameter than the upper hole.. The semiconductor device further includes a conductive film provided at an internal wall surface of the lower hole, a barrier metal provided along an internal wall surface of the upper hole, and a Cu film filling the upper and lower holes. The conductive film contains a substance identical to a substance of the barrier metal. A highly reliable semiconductor device can thus be obtained. | 09-12-2013 |
Patent application number | Description | Published |
20080197496 | Semiconductor device having at least two layers of wirings stacked therein and method of manufacturing the same - A semiconductor device according to the present invention is a semiconductor device having a first wiring formed in a first insulating layer and a second wiring formed in a second insulating layer formed on the first insulating layer and the first wiring. Here, at least one of the first wiring and the second wiring is a CuAl wiring. The second wiring is electrically connected to the first wiring at its via-plug portion, with a plurality of barrier layers interposed between the second wiring and the first wiring. In the barrier layers, a CuAl-contact barrier layer which is in contact with the CuAl wiring has a nitrogen atom content of less than 10 atomic %. Therefore, the present semiconductor device has high reliability and small variations in initial via resistance value. | 08-21-2008 |
20080308869 | SEMICONDUCTOR DEVICE WHICH HAS MOS STRUCTURE AND METHOD OF MANUFACTURING THE SAME - The technology which can control a threshold value appropriately, adopting the material which fitted each gate electrode of the MOS structure from which a threshold value differs without making the manufacturing process complicated, and does not make remarkable diffusion to the channel region from the gate electrode is offered. | 12-18-2008 |
20090203279 | Resin composition, prepreg and their uses - A vinyl-compound-based resin composition containing a terminal vinyl compound (a) of a bifunctional phenylene ether oligomer having a polyphenylene ether skeleton, a specific maleimide compound (b), a naphthol aralkyl type cyanate ester resin (c) and a naphthalene-skeleton-modified novolak type epoxy resin (d) for a high-multilayer and high-frequency printed wiring board, which resin composition is excellent in varnish shelf life at low temperature and does not show a decrease in multilayer moldability, heat resistance after moisture absorption, electrical characteristics and peel strength even in a winter period and for a long period of time, and a prepreg, a metal-foil-clad laminate and a resin sheet each of which uses the above resin composition. | 08-13-2009 |
20090247032 | Resin composition, prepreg and metal-foil-clad laminate - A vinyl-compound-based resin composition containing a terminal vinyl compound (a) of a bifunctional phenylene ether oligomer having a polyphenylene ether structure, a naphthol aralkyl type cyanate ester resin (b), a bisphenol A cyanate ester resin (c), a brominated flame retardant (d) and an inorganic filler (e), which resin composition is for use in a printed wiring board for high multilayer and high frequency and is improved in moldability and copper foil peel strength, which are conventional problems, without any decrease in electric characteristics and heat resistance after moisture absorption while keeping flame retardancy, a prepreg comprising the above resin composition and a glass woven fabric, a metal-foil-clad laminate obtained by disposing a metal foil on one side or both sides of a stack of at least one prepreg and laminate-molding the resultant set, and a resin sheet obtained by applying a solution of the above resin composition to a surface of a metal foil or a film. | 10-01-2009 |
20100044864 | METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE, AND SEMICONDUCTOR DEVICE - The present invention aims at providing a method of manufacturing a semiconductor device capable of suppressing metal diffusion from the upper face of wiring. | 02-25-2010 |
20100074795 | Beta-TYPE TITANIUM ALLOY - The present invention provides a β-type titanium alloy keeping the content of the relatively expensive β-stabilizing elements such as V or Mo down to a total of 10 mass % or less and reducing the effects of composition segregation of Fe and Cr and thereby able to keep the Young's modulus and density relatively low. The β-type titanium alloy of the present invention comprises, by mass %, when Al: 2 to 5%, 1) Fe: 2 to 4%, Cr: 6.2 to 11%, and V: 4 to 10%, 2) Fe: 2 to 4%, Cr: 5 to 11%, and Mo: 4 to 10%, or 3) Fe: 2 to 4%, Cr: 5.5 to 11%, and Mo+V (total of Mo and V): 4 to 10% in range, and a balance of substantially Ti. These include Zr added in amounts of 1 to 4 mass %. Furthermore, by making the oxygen equivalent Q 0.15 to 0.30 or leaving the alloy in the work hardened state or by applying both, the tensile strength before aging heat treatment can be further increased. Due to this, it is possible to obtain the required strength even if the amount of precipitation of the α phase with the high Young's modulus is small. | 03-25-2010 |
20110311835 | TITANIUM SLAB FOR HOT ROLLING, AND METHOD OF PRODUCING AND METHOD OF ROLLING THE SAME - The present invention provides a titanium slab for hot rolling which can be fed into a general purpose hot-rolling mill for producing strip coil, without passage through a breakdown process such as blooming or a straightening process, and can further suppress surface defect occurrence of the hot-rolled strip coil, and a method of producing and a method of rolling the same, characterized in that in the cast titanium slab an angle θ formed by the crystal growth direction (solidification direction) from the surface layer toward the interior and a direction parallel to the slab casting direction (longitudinal direction) is 45 to 90°, and moreover, there is a surface layer structure of 10 mm or greater whose θ is 70 to 90°, and further characterized in that a crystal grain layer of 10 mm or greater is formed whose C-axis direction inclination of a titanium a phase is, as viewed from the side of the slab to be hot rolled, in the range of 35 to 90° from the normal direction of the surface to be hot rolled. The titanium slab concerned is produced using an electron beam melting furnace by casting at an extraction rate of 1.0 cm/min or greater. | 12-22-2011 |
20110318597 | Titanium Material for Hot Rolling and Method of Producing the Same - The present invention provides a titanium material for hot rolling that enables reduction of defects occurring on the surface (in the case of a flat material or strip coil, including not only the flat surfaces but also the side surfaces and edges) owing to the hot rolling, and a method of producing the same, particularly to a titanium material for hot rolling enabling omission of an ingot breakdown process, and a method of producing the same, characterized in that it is a titanium material for hot rolling having dimples imparted by cold plastic deformation whose mean value of the heights (Wc) of the undulation profile elements is 0.2 to 1.5 mm and mean value of the lengths (WSm) thereof is 3 to 15 mm, and makes it possible to minimize surface defects occurring in hot rolling even if a process for breaking down the ingot is omitted. The dimples are formed by plastically deforming the surface of the titanium under cold condition using a steel tool having a tip shape of a radius of curvature of 3 to 30 mm or a steel sphere of a radius of 3 to 30 mm. | 12-29-2011 |
20120189487 | BETA-TYPE TITANIUM ALLOY - The present invention provides a β-type titanium alloy that includes, by mass %, when Al: 2 to 5%, 1) Fe: 2 to 4%, Cr: 6.2 to 11%, and V: 4 to 10%, 2) Fe: 2 to 4%, Cr: 5 to 11%, and Mo: 4 to 10%, or 3) Fe: 2 to 4%, Cr: 5.5 to 11%, and Mo+V (total of Mo and V): 4 to 10% in range, and a balance of substantially Ti. These include Zr added in amounts of 1 to 4 mass %. Furthermore, by making the oxygen equivalent Q 0.15 to 0.30 or leaving the alloy in the work hardened state or by applying both, the tensile strength before aging heat treatment can be further increased. | 07-26-2012 |
20140235126 | RESIN COMPOSITION, PREPREG AND THEIR USES - A vinyl-compound-based resin composition containing a terminal vinyl compound (a) of a bifunctional phenylene ether oligomer having a polyphenylene ether skeleton, a specific maleimide compound (b), a naphthol aralkyl type cyanate ester resin (c) and a naphthalene-skeleton-modified novolak type epoxy resin (d) for a high-multilayer and high-frequency printed wiring board, which resin composition is excellent in varnish shelf life at low temperature and does not show a decrease in multilayer moldability, heat resistance after moisture absorption, electrical characteristics and peel strength even in a winter period and for a long period of time, and a prepreg, a metal-foil-clad laminate and a resin sheet each of which uses the above resin composition. | 08-21-2014 |
20150180418 | TRANSMITTING APPARATUS AND TRANSMISSION METHOD - A transmitting apparatus and transmission method are capable of easily and correctly mixing an in-phase component and a quadrature-phase component in a quadrature modulator. A local signal with a duty ratio of 25% or smaller is generated without using frequency which is a multiple of frequency of the local signal. Without providing switches in series to the outputs of I and Q amplifiers, a duty ratio of 25% or less is obtained. for the local signal, and class-D unit amplifiers are operated such that one of the I amplifier and the Q amplifier is connected to the output side in any state regardless of whether an output power control signal is at an on-level or an off-level. In producing the 25% duty ratio, a local signal with a 50% duty ratio is converted so as to have a duty ratio of 25% by I and Q duty converters. | 06-25-2015 |
20150191812 | RESOURCE SAVING-TYPE TITANIUM ALLOY MEMBER POSSESSING IMPROVED STRENGTH AND TOUGHNESS AND METHOD FOR MANUFACTURING THE SAME | 07-09-2015 |
20150236727 | TRANSMISSION APPARATUS AND TRANSMISSION METHOD - A transmission apparatus includes a digital amplifier having a plurality of class-D amplifiers connected in parallel to each other, each of the class-D amplifiers including a logic circuit that processes input signals from two input terminals and outputs the input signals to one of two output terminals, according to a selection signal, and including capacitors connected in series to the two output terminals, respectively, a first selection circuit that outputs either an in-phase component or a quadrature component of a transmission signal to the digital amplifier depending on the selection signal, and a second selection circuit that outputs either an in-phase component carrier signal or a quadrature component carrier signal to the digital amplifier depending on the selection signal. | 08-20-2015 |
20150288555 | TRANSMITTER, RECEIVER, TRANSMISSION METHOD, AND RECEPTION METHOD - A preamble generating unit generates first and second synchronization preambles having different numbers of subcarriers. A transmission signal generating unit generates an OFDM transmission signal through time-division multiplexing by using the generated first and second synchronization preambles. A transmission RF unit converts the generated OFDM transmission signal into a radio-frequency OFDM signal and transmits the radio-frequency OFDM signal. The preamble generating unit adds a predetermined dummy period between the first synchronization preamble and the second synchronization preamble. | 10-08-2015 |
20150304377 | METHOD FOR REDUCING INTERFERENCE CAUSED BY OVERLAPPING CHANNELS IN A WIRELESS COMMUNICATION SYSTEM - A method of reducing interference between wireless networks operating on channels with different bandwidths is proposed. One wireless network operates on a narrow band channel while the other network operates on a wide band channel that overlaps the narrow band channel. The method involves communicating information regarding the wide band channel to the devices of the network operating on the narrow band channel. A device in the network operating on the wide band channel constructs a special frame that carries its network ID as well as information regarding the wide band channel that it is operating on, namely the center frequency and the channel bandwidth. The device then broadcasts this frame on the narrow band channel. In addition, this frame is protected from possible collision by preceding the transmission of the frame by protection frames on both the channels. | 10-22-2015 |
20160038983 | TITANIUM CAST PRODUCT FOR HOT ROLLING AND METHOD FOR MANUFACTURING SAME - There is provided a titanium cast product for hot rolling composed of commercially pure titanium, the titanium cast product including: a microstructural refinement layer having acicular microstructure on an outermost layer of a surface layer to be rolled; and an inside microstructural refinement layer having acicular microstructure provided in an inside of the microstructural refinement layer. Cast solidification microstructure is present more inward than the inside microstructural refinement layer. The microstructural refinement layer has finer microstructure than the inside microstructural refinement layer. The microstructural refinement layer is present in a range of a depth of 1 mm or more and less than 6 mm from the surface. The inside microstructural refinement layer is present in an inside of the microstructural refinement layer in a range of a depth of 3 mm or more and 20 mm or less from the surface. | 02-11-2016 |