Patent application number | Description | Published |
20080205540 | WIRELESS COMMUNICATION APPARATUS - Before data is transmitted from a plurality of antennas, a plurality of known symbol sequences are transmitted from these antennas. Each known symbol sequence contains a plurality of known symbols having different subcarrier arrangements. Known symbols transmitted from different antennas have different subcarrier arrangements. | 08-28-2008 |
20090100312 | APPARATUS AND METHOD FOR DECODING LOW-DENSITY PARITY CHECK CODE - There is provided with a decoding apparatus for decoding a low-density parity check code defined by a parity check matrix, includes: a first operation unit configured to carry out a row operation for each row of the parity check matrix; a calculation unit configured to calculate a reliability coefficient with respect to establishment of a parity check equation defined by said each row, respectively; a second operation unit configured to carry out a column operation for said each row; and a controller configured to iteratively execute one set which includes respective processing by the first operation unit, the calculation unit and the second operation unit and omit the processing by the first operation unit and the calculation unit for a row for which the reliability coefficient has satisfied a threshold. | 04-16-2009 |
20100058152 | DECODING APPARATUS AND METHOD - A-decoding-apparatus includes first-equalization-unit configured to obtain an-equalized-bit-string subjected to hard-decision by equalizing the-input-signal, and to obtain reliability-value-data as soft-decision which is indicating reliability of the-hard-decision with respect to each bit of the-equalized-bit-string, second-equalization-unit configured to obtain a plurality of candidates of the-equalized-bit-string subjected to hard-decision by equalizing the-first-signal, conversion-unit configured to covert the-reliability-value-data corresponding to the-candidates of the-equalized-bit-string, decoding-unit configured to obtain a-bit-string by performing error-correction decoding by using the-converted-reliability-value-date as soft-decision on the-reliability-value-data, determination-unit configured to determine whether the-bit-string obtained by the-decoding-unit contains an-error, and control-unit configured to control the-conversion-unit and the-decoding-unit based on determination-result obtained by the-determination-unit to repeatedly execute processing of causing the-conversion-unit to convert the-reliability-value-data corresponding to the-candidate of the-equalized-bit-string and causing the-decoding-unit to decode the-reliability-value-data converted by the-conversion-unit, until a-bit-string without error is obtained. | 03-04-2010 |
20110264983 | SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, AND SIGNAL REPRODUCING APPARATUS - According to one embodiment, a signal processing device comprises a first waveform equalizer, a second waveform equalizer, a first Viterbi decoder, a second Viterbi decoder. The first and the second waveform equalizers equalize a waveform of the input signal according to first and second partial response characteristics and output first and second partial response signals. The first and second Viterbi decoders decode the first and the second partial response signals by means of Viterbi decoding process. The input signal is reproduced based on an output of the first Viterbi decoder and an output of the second Viterbi decoder. | 10-27-2011 |
20150046764 | RECORDING AND REPRODUCING APPARATUS - According to one embodiment, a recording and reproducing apparatus includes a first masking unit configured to apply first bit masking to error correction code (ECC) encoded data using a bit sequence for masking, to generate a masked bit sequence to be recorded on a medium, and a de-masking unit configured to apply de-masking, using the bit sequence for masking, to a sequence of decision values based on a signal read from the medium to generate a sequence of de-masked decision values to be ECC decoded. The bit sequence for masking comprises an iteration of a fixed bit sequence of N (>1) bits. The bit de-masking is an inverse process corresponding to the first bit masking. | 02-12-2015 |
20150254131 | MEMORY CONTROLLER, STORAGE DEVICE AND MEMORY CONTROL METHOD - According to one embodiment, there is provided a memory controller that controls nonvolatile memory of K bits/cell, first and second bits of the K bits corresponding to first and second pages, the memory controller including an encoder configured to encode unit data to write in a first page to generate a parity; and a decoder configured to perform an error correction process using the readout unit data and the parity; where readout of the first page is carried out using 2 | 09-10-2015 |
Patent application number | Description | Published |
20120045250 | CHARGING MEMBER, PROCESS FOR ITS PRODUCTION, AND ELECTROPHOTOGRAPHIC APPARATUS - To provide a charging member that can not easily cause faulty cleaning. A charging member having a conductive support and an elastic layer that is a surface layer; the elastic layer having on its surface a region having been cured by irradiation with electron rays, where the region having been cured supports at least one type of spherical particles of spherical silica particles, spherical alumina particles and spherical zirconia particles in such a state that the spherical particles are exposed at least in part to the surface of the elastic layer so as to make the surface roughened. | 02-23-2012 |
20120076539 | CHARGING MEMBER - A charging member is provided which can not easily change in charging performance even because of its service over a long period of time. The charging member has a conductive support, an elastic layer and a surface layer. The elastic layer comprises spherical particles in such a way that the spherical particles are exposed at least in part to the surface of the elastic layer so as to make the surface of the elastic layer roughened; the spherical particles are at least one type selected from the group consisting of spherical silica particles, spherical alumina particles and spherical zirconia particles; the surface of the elastic layer is overlaid with the surface layer in such a way that the surface profile of the elastic layer is reflected on the surface profile of the charging member; and the surface layer comprises a high-molecular compound having a specific constituent unit. | 03-29-2012 |
20120082852 | CHARGING MEMBER AND METHOD FOR PRODUCING CHARGING MEMBER - Provided is a charging member in which the hardness of its surface is increased while surface free energy is kept low, the surface is hard to scratch even in long-term use, and a toner or the like is hard to adhere to the surface. The charging member according to the present invention includes a conductive support, a conductive elastic layer, and a surface region containing a cured material of a compound represented by the following formula (1): | 04-05-2012 |
20120141161 | CHARGING MEMBER - To provide a charging member that can not easily change in electrical resistance even by any long-term continuous application of direct-current voltage and, as a result thereof, may cause less change in its charging performance with time. The charging member has an electrically conductive support and an electrically conductive elastic layer. The elastic layer contains a vulcanized rubber. The vulcanized rubber is a vulcanized product of a mixture which contains i) a binder polymer containing a polymer having a butadiene skeleton and ii) carbon black, where the polymer having a butadiene skeleton stands modified at the molecular terminal(s) thereof with a group represented by the following formulas (1) or (2). | 06-07-2012 |
20120177408 | CHARGING MEMBER - Provided is a charging member having an elastic layer to which components derived from a developer hardly adhere even when the charging member is used for a long time period and in which elastic layer the occurrence of compression set is suppressed The charging member includes: a electroconductive support; and a electroconductive elastic layer, in which the elastic layer is formed through irradiation of an electron beam onto a surface of a rubber layer formed of a crosslinked product of a rubber mixture containing an acrylonitrile-butadiene rubber and a styrene-butadiene rubber; the styrene-butadiene rubber has a 1,2-vinyl bond, and at least one selected from a cis-1,4 bond and a trans-1,4 bond; and a ratio of the numbers of moles of the 1,4 bonds to a total number of moles of the 1,2-vinyl bond, the cis-1,4 bond, and the trans-1,4 bond is 31 mol % or more and 61 mol % or less. | 07-12-2012 |
20120224887 | CONDUCTIVE RUBBER ELASTIC MATERIAL, CHARGING MEMBER AND ELECTROPHOTOGRAPHIC APPARATUS - A conductive rubber elastic material is stably provided which can produce a charging member that may less vary in electrical resistance even with changes in applied voltage, promises uniform electrical properties, has charge characteristics not affected by changes in environments such as temperature and humidity, and enables a charging object member such as a photosensitive member to be kept from being contaminated. It is a conductive rubber elastic material which contains a matrix containing at least one ionically conductive rubber selected from the group consisting of epichlorohydrin rubber, epichlorohydrin-ethylene oxide rubber, epichlorohydrin-ethylene oxide-allyl glycidyl ether rubber, acrylonitrile-butadiene rubber and a hydrogenated product of acrylonitrile-butadiene rubber and domains composed of an electronically conductive rubber material containing i) a rubber having a butadiene skeleton and ii) carbon black, and the rubber having a butadiene skeleton is modified at a molecular terminal thereof with a specific atomic group. | 09-06-2012 |
20130039677 | CHARGING MEMBER, MANUFACTURING METHOD FOR CHARGING MEMBER, AND ELECTROPHOTOGRAPHIC APPARATUS - Provided is a charging member which hardly causes a cleaning failure in a photosensitive member while having such flexibility that a sufficient nip width can be formed with respect to a photosensitive member. The charging member comprises: an electro-conductive support; and an elastic layer as a surface layer, wherein: the elastic layer has a hardened region formed by irradiation with an electron beam; and the hardened region supports a composite particle in a state in which the composite particle is exposed on the surface of the elastic layer, thereby roughening the surface of the elastic layer, and wherein: said composite particle includes a silica-containing porous particle whose surface is coated with a carbon-containing film. | 02-14-2013 |
20130272747 | CHARGING MEMBER, PROCESS FOR ITS PRODUCTION, AND ELECTROPHOTOGRAPHIC APPARATUS - To provide a charging member that can not easily cause faulty cleaning on a photosensitive member while having a flexibility high enough to form a nip between it and the photosensitive member in a sufficient width. The charging member has an electro-conductive support and an elastic layer that is a surface layer, which elastic layer has at its surface a region having been cured by irradiation with electron rays, where this region supports spherical polyethylene particles in such a state that the spherical polyethylene particles are exposed to the surface of the elastic layer, thereby making the surface roughened. | 10-17-2013 |
20130287444 | CHARGING MEMBER, ELECTROPHOTOGRAPHIC APPARATUS, AND PROCESS CARTRIDGE - Provided is a charging member capable of stably charging an object to be charged while suppressing adhesion of toner or an external additive onto a surface of an elastic layer and compression set of an abutting portion of the elastic layer. The charging member is a charging member, comprising a mandrel; and an electro-conductive elastic layer, wherein: the elastic layer has a universal hardness decreasing from a surface toward a depth direction thereof; and the hardnesses at a central portion and both end portions in a longitudinal direction of the charging member satisfy the relationships: in the surface of the elastic layer, the hardnesses at the both end portions are higher than that at the central portion; and at a position having a depth of t (μm) from the surface of the elastic layer, the hardness at the central portion is higher than those at the both end portions. | 10-31-2013 |
20130302064 | CHARGING ROLLER AND PROCESS FOR ITS PRODUCTION - A roller for electrophotography is provided which has an electrically conductive support and an elastic layer as a surface layer, where the elastic layer holds spherical particles each having a plane on their peripheral surfaces, in such a way that part or the whole of the plane comes exposed to the surface of the elastic layer, and the plane of each of the spherical particles standing exposed to the surface of the elastic layer and a plane that is i) orthogonal to a straight line passing through an axis of a section orthogonal to an axis of the roller for electrophotography and being directed toward the peripheral surface of the roller for electrophotography and is ii) tangential to the peripheral surface of the roller for electrophotography forms an acute internal angle. | 11-14-2013 |
20130310239 | CHARGING MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - The present invention provides a charging member having an elastic layer on a surface thereof in which occurrence of compression set is reduced. The charging member includes an electro-conductive support and an elastic layer provided on the support as a surface layer, wherein the elastic layer is a rubber layer made of a crosslinked product of a rubber mixture including acrylonitrile butadiene rubber and polybutadiene, the polybutadiene includes 1,2-syndiotactic polybutadiene, and the elastic layer is formed by irradiating a surface of the rubber layer with electron rays. | 11-21-2013 |
20140023960 | ELECTROPHOTOGRAPHIC MEMBER, METHOD FOR PRODUCING THE SAME, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic member including an electrically conductive substrate and an electrically conductive resin layer corresponding to a surface layer. The resin layer includes electrically conductive particles and a binder resin. The binder resin is a polymer in which a polymer chain having at least one unit selected from the group consisting of units represented by the following formulas (1) and (2) and at least one unit selected from the group consisting of units represented by the following formulas (3) and (4) is crosslinked by at least one organopolysiloxane chain selected from the group consisting of structures represented by the following formulas (5) and (6): | 01-23-2014 |
20140205323 | CHARGING MEMBER AND ELECTROPHOTOGRAPHIC APPARATUS - The present invention provides a charging member which has a low compression set and which can suppress the generation of image defects. | 07-24-2014 |
20140219681 | CHARGING MEMBER, MANUFACTURING METHOD THEREFOR, AND ELECTROPHOTOGRAPHIC APPARATUS - Provided is a charging member capable of suppressing occurrence of compression set while having flexibility enough to ensure a nip with a photosensitive member. The charging member comprises a support and an elastic layer, wherein the elastic layer has an MD-1 hardness of from 55 to 85° at the surface thereof, and has a universal hardness of 2.0 to 20.0 N/mm | 08-07-2014 |
Patent application number | Description | Published |
20090079020 | SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - A semiconductor device includes a semiconductor substrate having a first surface in which a light-receiving portion and electrodes are provided. The semiconductor substrate has a penetrating wiring layer connecting the first surface and the second surface. A light-transmissive protective member is disposed on the semiconductor substrate so as to cover the first surface. A gap is provided between the semiconductor substrate and the light-transmissive protective member. A protective film is formed at a surface of the light-transmissive protective member. The protective film has an opening provided at a region corresponding to the light-receiving portion. | 03-26-2009 |
20090194865 | METHOD FOR MANUFACTURING A SEMICONDUCTOR DEVICE, METHOD FOR DETECTING A SEMICONDUCTOR SUBSTRATE AND SEMICONDUCTOR CHIP PACKAGE - A method for manufacturing a semiconductor device, includes: preparing a semiconductor substrate with a first notch; preparing a supporting substrate with a second notch; laminating the semiconductor substrate with the supporting substrate so that the first notch can be matched with the second notch; and processing a second main surface of the semiconductor substrate opposite to a first main surface thereof facing to the supporting substrate to reduce a thickness of the semiconductor substrate to a predetermined thickness. | 08-06-2009 |
20100038741 | SEMICONDUCTOR APPARATUS, MANUFACTURING METHOD OF SEMICONDUCTOR APPARATUS, AND CAMERA MODULE - A semiconductor apparatus includes, a semiconductor substrate having first and second main surfaces and a thought hole connecting the first and second main surfaces; a first insulation layer arranged on the first main surface, and having an opening corresponding to the thought hole; a first conductive layer arranged on the first insulation layer, and covering the thought hole; a second insulation layer arranged on an inner wall of the thought hole and the second surface; a second conductive layer arranged in the thought hole and on the second insulation layer, the second conductive layer contacting the first conductive layer; and a filling member arranged on the second conductive layer in the through hole, and having a gap between the second conductive layer on the first main surface side. | 02-18-2010 |
20110241180 | METHOD FOR MANUFACTURING A SEMICONDUCTOR DEVICE, METHOD FOR DETECTING A SEMICONDUCTOR SUBSTRATE AND SEMICONDUCTOR CHIP PACKAGE - A method for manufacturing a semiconductor device, includes: preparing a semiconductor substrate with a first notch; preparing a supporting substrate with a second notch; laminating the semiconductor substrate with the supporting substrate so that the first notch can be matched with the second notch; and processing a second main surface of the semiconductor substrate opposite to a first main surface thereof facing to the supporting substrate to reduce a thickness of the semiconductor substrate to a predetermined thickness. | 10-06-2011 |
Patent application number | Description | Published |
20090279135 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM - An image processing apparatus includes a receiving unit configured to receive information indicating capability of each image forming apparatus from a plurality of image forming apparatuses via a network, a capability determination unit configured to determine, by using the information received by the receiving unit, whether a number of predetermined capabilities of an image processing apparatus that have been implemented, is equal to or higher than a predetermined ratio to the number of a plurality of image processing apparatuses, and a transmission unit configured to transmit, to an image processing apparatus serving as a distribution destination, a combination of information including the predetermined capabilities of the image processing apparatus as a setting, if the capability determination unit determines that the number of the predetermined capabilities of the image processing apparatus that have been implemented, is less than the predetermined ratio. | 11-12-2009 |
20090284767 | PRINTING APPARATUS, PRINTING METHOD, AND MEDIUM STORING PRINTING PROGRAM - A printing apparatus analyzes whether or not each page in form data has been given a designation of blank page printing, carries out a process based on a result of analysis, of invalidating the designation of blank page printing of a page that has been given the designation of blank page printing in the form data, merges form data and print data, and performs printing of merged data that has been obtained by merging. | 11-19-2009 |
20100199271 | ELECTRONIC APPARATUS, UPDATING METHOD OF SOFTWARE AND STORAGE MEDIUM STORING COMPUTER PROGRAM - An electronic apparatus including a software module includes a setting unit configured to set information indicative of a policy at the time of updating the software module based on an operation by a user, an acquirement unit configured to acquire the software module to be updated and information as an index for determining timing for updating the software module and a determination unit configured to determine the timing for updating the software module by using the information set by the setting unit and the information acquired by the acquirement unit. | 08-05-2010 |
20110116111 | IMAGE FORMING APPARATUS, AND METHOD AND PROGRAM FOR CONTROLLING SAME - Disclosed is an image forming apparatus and method of controlling same for forming an image on a print medium using a non-transparent recording agent and a transparent recording agent. If the gloss level of an image to be formed is designated, the image is formed upon deciding whether or not image formation using the transparent recording agent is to be carried out, this decision being made based upon the designated gloss level and stored type information of the print medium used in image formation. | 05-19-2011 |
20110217050 | PRINTING SYSTEM, PRINTING METHOD AND PROGRAM FOR EXECUTING PRINTING METHOD - In a printing apparatus, first printing data used for the first printing apparatus to perform a print is associated with second printing data generated from the same print job as the first printing data. A printing apparatus detects an operating state of the apparatus. The printing apparatus, when the detected operating state shows generation of an error and the error is not removed, in a case where it is determined that a job inputted into a printing system and associated is not completed, displays information in regard to a removal method of the error on an I/F. In addition, the printing apparatus notifies the printing apparatus of generation information of the error. The printing apparatus displays the information showing that the error is generated on an I/F. | 09-08-2011 |
20140062015 | PRINTING APPARATUS, METHOD FOR CONTROLLING THE SAME, AND STORAGE MEDIUM - There is provided a technique of allowing the user to readily identify a printed material with a stable tint when a plurality of printed materials are output in a printing apparatus. To achieve this, a printing apparatus according to one aspect of the invention executes an adjustment job for printing an image on a plurality of sheets for adjusting the tint of the printed image, and controls to discharge, to a first discharge unit, a predetermined number of sheets among the plurality of sheets on which the image is printed by executing the adjustment job, and to discharge, to a second discharge unit different from the first discharge unit, a remaining sheet subsequent to the predetermined number of sheets. | 03-06-2014 |
20140334833 | SHEET CONVEYING APPARATUS, METHOD FOR CONTROLLING THE SAME AND PROGRAM - There is provided a technique for reducing the user's labor of removing, from a printing apparatus, sheets which remain on a conveyance path when a jam occurs in the printing apparatus. To achieve this, a printing apparatus according to one aspect of the invention serves as a sheet conveying apparatus for conveying a sheet through a conveyance path, which identifies a sheet jam position on the conveyance path, conveys, to a first sheet retraction unit, a sheet on the upstream side in a conveyance direction with respect to the identified jam position, and conveys, to a second sheet retraction unit, a sheet on the downstream side in the conveyance direction with respect to the identified jam position. | 11-13-2014 |
20140339756 | PRINTING APPARATUS AND CONTROL METHOD THEREOF - A printing apparatus according to one aspect of this invention automatically discharges, of sheets remaining on a conveyance path when a sheet being conveyed jams, dischargeable sheets to one of a plurality of sheet retraction units. At this time, the printing apparatus detects the stacked state of sheets discharged to the sheet retraction unit. When the printing apparatus detects that the sheet retraction unit has become a predetermined state, it changes the discharge destination of sheets to be conveyed to the sheet retraction unit, thereby controlling not to further discharge a sheet to that sheet retraction unit. According to this control, when retracting sheets remaining on the conveyance path upon occurrence of a jam in the printing apparatus, occurrence of a new jam can be prevented. | 11-20-2014 |