Patent application number | Description | Published |
20100248022 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - The nonaqueous electrolyte secondary battery having high output characteristics and excellent safety when overcharging as well as excellent charge and discharge cycle characteristics according to an aspect of the invention includes a positive electrode having a positive electrode active material, a negative electrode having a negative electrode active material, a separator, and a nonaqueous electrolyte. The positive electrode active material includes lithium iron phosphate having an olivine crystal structure represented by General Formula Li | 09-30-2010 |
20110177364 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - Provided is a nonaqueous electrolyte secondary battery using lithium-manganese composite oxide as positive electrode active material, having superior high-temperature charge storage characteristics and charge-discharge cycling characteristics and enhanced safety in the event of overcharging. A nonaqueous electrolyte secondary battery according to an aspect of the invention includes: a positive electrode plate provided with a positive electrode mixture containing positive electrode active material, a negative electrode plate, a nonaqueous electrolyte, and a pressure-sensitive safety mechanism that is actuated by rise in internal pressure. The positive electrode active material contains lithium-manganese composite oxide containing 10 to 61% by mass of the element manganese. The positive electrode mixture contains lithium carbonate or calcium carbonate, and lithium phosphate. The nonaqueous electrolyte contains an organic additive made of at least one selected from among biphenyl, a cycloalkyl benzene compound, and a compound having quaternary carbon adjacent to a benzene ring. | 07-21-2011 |
20120028130 | NON-AQUEOUS ELECTROLYTE SECONDARY CELL - A non-aqueous electrolyte secondary cell having high temperature storage characteristics and cycle characteristics is provided. | 02-02-2012 |
Patent application number | Description | Published |
20110294429 | COMMUNICATION DEVICE AND COMMUNICATION METHOD - The communication device ( | 12-01-2011 |
20120069893 | COMMUNICATIONS APPARATUS, COMMUNICATIONS SYSTEM, COMMUNICATIONS METHOD, AND INTEGRATED CIRCUIT | 03-22-2012 |
20130136165 | RECEPTION DEVICE - An FFT unit subjects a P-times oversampling output of an AD converter to Fourier transform into a frequency domain signal. A distortion estimation unit estimates a distortion characteristic from a difference between the frequency domain signal and a reference signal. A correction coefficient calculation unit calculates a correction coefficient of a distortion characteristic. A correction unit corrects the frequency domain signal by using the correction coefficient. An IFFT unit subjects the corrected frequency domain signal to inverse Fourier into a time domain signal having the same sampling speed as a symbol speed, and outputs a partial time series. | 05-30-2013 |
20130136216 | RECEPTION DEVICE - There are provided a correlation calculation unit that takes a cross-correlation between a signal from which a DC component of an analog baseband signal is removed, and to which a known fixed DC offset is added, and a known signal, an inter-correlation peak phase difference detection unit that estimates a carrier frequency offset from a peak of the calculated correlation vector, and a residual DC offset estimation unit that estimates a residual DC offset component from a mean value of the sidelobe of the calculated correlation vector. | 05-30-2013 |
20130142099 | WIRELESS COMMUNICATION DEVICE AND SEMICONDUCTOR DEVICE - A transmission power controller turns on a power supply to a transmitter at a given time taking a power rise time into account before a start time of transmission processing in the transmitter, and turns off the power supply to the transmitter when the transmission processing is finished. A reception power controller turns on a power supply to a receiver at a given time taking a power rise time into account before a time at which an ACK is assumed to be arrival from a wireless communication device on a receiver side responsive to data transmitted from the transmitter, and turns off the power supply to the receiver when the reception processing of the ACK in the receiver is finished. | 06-06-2013 |
20130157589 | TRANSMISSION-RECEPTION DEVICE - A transmission-reception device includes a radio frequency section that performs a frequency conversion on a signal which is modulated using a single carrier transmission system, a correction coefficient multiplier that multiplies a frequency domain signal by a distortion correction coefficient in the frequency conversion of the radio frequency section to correct a distortion, a first transformer that converts a time domain signal into a frequency domain signal at a time of reception, and converts the frequency domain signal which is distortion-corrected by the correction coefficient multiplier into a time domain signal at a time of transmission, and a second transformer that converts a time domain signal into a frequency domain signal at a time of transmission, and converts the frequency domain signal which is distortion-corrected by the correction coefficient multiplier into a time domain signal at a time of reception. | 06-20-2013 |
20130329832 | WIRELESS COMMUNICATION APPARATUS - A transmission RF section ( | 12-12-2013 |
20140086229 | WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD - A demodulation section demodulates a received signal. A decoding section decodes an output from the demodulation section. A buffer temporarily stores a portion of the received signal. A header analyzing section gives the buffer timing at which demodulation and decoding of a payload of the received signal are initiated, on the basis of a result of combination of a plurality of header sequences included in a header of the received signal and results of processing of the demodulation section and the decoding section. An improved SNR is achieved by means of combination of the plurality of header sequences, so that an iterative decoding count used for decoding the header become smaller. | 03-27-2014 |
20150244071 | WIRELESS COMMUNICATION DEVICE AND DIRECTIVITY CONTROL METHOD - A wireless communication device includes a directivity control unit that sets a directivity for a plurality of antennas, a directivity switching unit that switches the directivity for the plurality of antennas, and a reception quality estimation unit that measures the reception quality of a received signal received by the plurality of antennas. The directivity control unit uses the reception quality of a received signal directed to another station among the received signals to set the directivity in a direction in which an influence of interference from the other station is reduced. | 08-27-2015 |
20150244475 | RADIO COMMUNICATION APPARATUS AND INTERFERENCE DETECTION METHOD - A radio communication apparatus includes a discrete Fourier transformer that performs a frequency-domain transform on each of a plurality of reception signals received at a plurality of receiver chains and generates a plurality of frequency-domain signals, a covariance matrix calculator that calculates covariance of the plurality of frequency-domain signals, a deviation calculator that calculates a cumulative value of covariance in a first frequency range and a second frequency range and calculates deviation of the covariance in the plurality of frequency ranges, and an adjacent-channel interference determiner that determines presence or absence of adjacent-channel interference using the cumulative value of the covariance. | 08-27-2015 |
20150244478 | RADIO COMMUNICATION DEVICE AND METHOD OF CONTROLLING DIRECTIVITY - A radio communication device includes: a directivity control unit that configures each of directivities of a plurality of antennas; a directivity switching unit that switches between the directivities of the antennas; a reception quality estimation unit that measures a reception quality of a received signal received by the antennas; and a block error estimation unit that estimates a block error in reception data which is obtained by decoding the received signal. In the case where a block error occurs continuously for a predetermined number of times or longer and an amount of decrease in the reception quality is lower than a predetermined value, the directivity control unit re-adjusts a directivity to decrease the block error, based on a result of the estimation of the block error and a result of the measurement of the reception quality, the re-adjusted directivity being one of the directivities of the antennas. | 08-27-2015 |
20150244546 | EQUALIZATION METHOD AND EQUALIZER - An equalization method includes carrying out frequency domain conversion of M received signals into a 2M received vector having 2M elements, carrying out channel estimation and noise/interference estimation based on the 2M vector, calculating a 2M channel vector and a (2M)×(2M) noise/interference matrix, selecting a 2M−1 or less channel vector from the calculated 2M channel vector, selecting a (2M−1)×(2M−1) or less noise/interference matrix from the calculated (2M)×(2M) noise/interference matrix, calculating a 2M−1 or less equalization coefficient vector as equalization coefficients based on the selected 2M−1 channel vector and the selected (2M−1)×(2M−1) noise/interference matrix, selecting a 2M−1 or less received vector from the 2M received vector, and equalizing the selected 2M−1 received vector by using the calculated equalization coefficients. | 08-27-2015 |
Patent application number | Description | Published |
20090185286 | Lens barrel and image pickup apparatus - An addendum of a gear portion and a tip end of a first cam follower are located on similar-diameter cylindrical planes centering at a center axis of a cam ring. A gear housing recess is provided in an inner peripheral surface of a fixed ring. A bottom surface of a first-cam-ring-movement cam groove engaging with the first cam follower, and a bottom surface of the recess are located on similar-diameter cylindrical planes centering at a center axis of the fixed ring. A release portion is provided at the inner peripheral surface of the fixed ring to provide communication between a protruding position cam groove portion of the first-cam-ring-movement cam groove and the recess. At the protruding position of the cam ring, a portion of the gear portion near the first cam follower passes through the release portion and is located inside the protruding position cam groove portion. | 07-23-2009 |
20090185298 | Lens barrel and image pickup apparatus - An engagement pawl of a linear-movement guide ring engages with an engagement groove of a cam ring, and hence the cam ring is supported by the linear-movement guide ring non-movably in an optical-axis direction. When the cam ring is rotated, a cam pin of a second group moving frame moves in the optical-axis direction along a cam groove formed in an inner periphery of the cam ring. The cam groove includes a plurality of first cam grooves and a plurality of second cam grooves. The engagement groove of the cam ring intersects with the second cam groove. The engagement pawl has a width larger than a groove width of the second cam groove intersecting with the engagement groove. | 07-23-2009 |
20110157729 | LENS BARREL AND IMAGING APPARATUS - A lens barrel includes: a holding frame; a cam ring rotatable relative to the holding frame around a rotational axis substantially parallel to an optical axis of an imaging optical lens system; and a cam follower and a cam groove that engage with each other so that the holding frame and the cam ring move relative to each other along the optical axis when the holding frame and the cam ring are rotated relative to each other. | 06-30-2011 |
20130222687 | LENS BARREL AND IMAGING APPARATUS - A lens barrel includes a cam follower, a first cam ring with a cam slide protrusion in which a cam groove engages with the cam follower, a second cam ring so supported by the first cam ring that both are unrotatable around an axis parallel to an optical axis, a rectilinear guide ring so supported by the second cam ring that the second cam and rectilinear guide rings are rotatable around the axis and unmovable in the optical axis direction, a rectilinear guide guiding the rectilinear guide ring in the optical axis direction, a rectilinear cam ring in which a cam slide groove engages the cam slide protrusion and which guides the rectilinear guide in the optical axis direction, and a rotary ring so supported by the rectilinear cam ring that the rectilinear cam and rotary rings are rotatable around the axis and unmovable in the optical axis direction. | 08-29-2013 |
Patent application number | Description | Published |
20130149010 | DEVELOPER CONTAINING CHAMBER, DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An object is to smoothly convey toner from a developer containing chamber to a developing chamber even when an opening that provides communication between the developer containing chamber and the developing chamber has a connecting part for adding strength to the apparatus. | 06-13-2013 |
20140270845 | CARTRIDGE DETACHABLY MOUNTABLE TO MAIN ASSEMBLY OF ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS, ASSEMBLING METHOD FOR DRIVE TRANSMITTING DEVICE FOR PHOTOSENSITIVE DRUM, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - With a structure in which a coupling member includes a sphere providing a center of inclination (pivoting), a rotational force transmitted member has an opening have a diameter smaller than that of the sphere, and the coupling member is prevented from disengaging from rotational force transmitted member by contact of inner edge of the opening to the sphere, the inner edge of the opening may limit an inclinable (pivotable) angle range of the coupling member. In a state that a pin that is a shaft portion is inserted in a hole that is a through-hole provided in a coupling member, opposite end portions of the pin are supported by a driving side flange, which is a rotational force transmitted member. The coupling member, the driving side flange, and the pin are connected in this manner, and the pin contacts the inside of the hole without limiting the inclinable (pivotable) angle range, by which the coupling member is prevented from disengaging from the driving side flange. | 09-18-2014 |
20140321883 | DEVELOPER CONTAINER, DEVELOPING APPARATUS, CLEANING APPARATUS, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is a developer container that accommodates developer, including: a first frame that has a recessed portion; and a second frame that has a first protruding portion, wherein the first frame and the second frame are joined by a first adhering portion in which the recessed portion and the first protruding portion are welded together, and a second adhering portion in which a second protruding portion and a flat portion are welded together, the recessed portion having a positioning inner side face that performs positioning of the first frame and the second frame within a recessed portion. Also provided are a method to manufacture a developer container, a developing apparatus having the developer container, a cleaning apparatus, a process cartridge, and an image forming apparatus. | 10-30-2014 |
20150212451 | DEVELOPING DEVICE, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A developing device includes: a developer carrying member; a developer container including a developer accommodating portion, a developing opening and a developing chamber; and a developer supplying member including a shaft member and a feeding member. The feeding member includes a first feeding portion having a length L | 07-30-2015 |
Patent application number | Description | Published |
20090302706 | VEHICULAR ROTARY ELECTRIC MACHINE - A vehicular rotary electric machine has a stator and a rotor supported by a bracket; a field winding which is provided on the rotor and is for generating a magnetomotive force; a field circuit section which is for supplying a current to the field winding; and a brush holder having a brush, the field circuit section and the brush holder being separately mounted to the bracket. In the vehicular rotary electric machine, connecting means between the field circuit section and the brush holder is configured by an intermediate wiring member having a stress buffering mechanism. | 12-10-2009 |
20100133961 | CONTROLLER-INTEGRATED ROTATING ELECTRICAL MACHINE - A controller-integrated rotating electrical machine includes a rotating electrical machine main body having a stator winding and a field winding and provided with a rotation detector that detects a rotation angle of a rotation shaft, a power circuit that controls a current flowing into the stator winding according to a detection output of the rotation detection portion, a field switching circuit that controls a current to flow into the field winding, and a capacitor connected in parallel with the power circuit and the field switching circuit. Both ends of the capacitor portion are connected to an external battery. The capacitor is disposed in closer proximity to the field switching circuit than the rotation detector, and connected to the field switching circuit via a common connection terminal. Noises superimposed on the rotation detection portion are thus reduced. | 06-03-2010 |
20100301692 | ELECTRICAL ROTATING MACHINE - An object of the present invention is to provide an electrical rotating machine capable of securing safety against collision. Included are a rotor having a field winding and cooling fans, and a stator having a stator winding, arranged so as to surround the rotor. A bracket | 12-02-2010 |
20110175496 | CONTROL APPARATUS-INTEGRATED DYNAMOELECTRIC MACHINE - A dynamoelectric machine main body, power circuit modules and a field circuit module, and a control apparatus that has a heatsink that is prepared by die casting, and that is mounted integrally onto the dynamoelectric machine main body are included, the heatsink including a plurality of convex heat receiving portions that are disposed so as to project from a front surface of a base plate, and that have heat receiving surfaces, the power circuit modules and the field circuit module including seal main body portions that are constituted by an electrically insulating resin that seal switching elements so as to expose bottom surfaces of element heat radiating portions on reference surfaces that have a surface shape that corresponds to a shape of the heat receiving surfaces, and electrical insulation supporting layers being interposed between the bottom surfaces of the heat receiving surfaces and the element heat radiating portions. | 07-21-2011 |
20130221890 | ROTATING ELECTRICAL MACHINE - Provided is a rotating electrical machine capable of downsizing. The rotating electrical machine includes: a stator ( | 08-29-2013 |
20140145526 | ROTATING ELECTRICAL MACHINE - A rotating electrical machine includes: a case; a rotor; a stator; a control portion including a field circuit portion used to supply a current to a control circuit and the field winding; a power circuit portion controlling a stator current; a heat sink installed so as to cool the control portion and the power circuit portion; a first waterproof portion providing waterproofing to signal terminals of the power circuit portion and the field circuit portion; a second waterproof portion provided with through-holes from which a part of the control portion and the power circuit portion is exposed and providing waterproofing between the control portion as well as the power circuit portion and the heat sink; and insulation portions installed in the through-holes of the second waterproof portion and isolating the control portion and the power circuit portion from the heat sink. | 05-29-2014 |
20140361648 | ELECTRIC ROTATING MACHINE - Two or more switching devices ( | 12-11-2014 |