Patent application number | Description | Published |
20090092247 | Server Certificate Issuing System - A server certificate issuing system confirms existence of a Web server for which a certificate is to be issued. The web server includes means for generating an entry screen to input application matters for an issuance of a server certificate, means for generating a key pair of a public key and a private key, means for generating a certificate signing request file (CSR) containing the generated public key, and means for generating a verification page indicating intention of requesting the issuance of the certificate. A registration server retrieves the CSR from a received server certificate request and accesses the Web server to read the verification information, and compares the read verification information with the CSR. If the verification information read from the Web server is identical to the CSR, it is determined that the Web server for which the server certificate is to be issued exists. | 04-09-2009 |
20100111300 | SERVER CERTIFICATE ISSUING SYSTEM - In a server certificate issuing system according to the invention, the Web server includes a control panel which configures and manages a Web and a mail. The control panel is loaded with an entry screen generator to input application items for an issuance of a server certificate, password generator for generating a password which is used to encrypt, and a verification page generator to indicate intention of requesting the issuance of the certificate. On the verification page, the generated password is indicated as verification information for example. The registration server retrieves the password from the received server certificate request and accesses the Web server to read out the verification information indicated on the verification page, and compares the read verification information with the password. As the result of the verification, the verification information read from the Web server is identical to the password, the registration server decides that the Web server for which is to be issued the server certificate exists. Then, the registration server generates the key pair and the CSR and transmits the generated CSR to the certificate issuing server. | 05-06-2010 |
20100275012 | SERVER CERTIFICATE ISSUING SYSTEM AND PERSON AUTHENTICATION METHOD - A server certificate issuing system in which existence of a Web server for which a certificate is to be issued can be confirmed and security is further improved is realized, wherein the user authentication is carried out using a test certificate having the SSL certificate format. Servers transmit server certificate request to the registration server which transmits the test certificate request to the test certificate issuing authority. The test certificate issuing server transmits the generated test certificate to the registration server which transmits the test certificate to the corresponding server and requests to install the test certificate. Then, the registration server accesses with SSL protocol to the server and verifies whether or not the session of the SSL protocol has been established. The registration server transmits the CSR to the certificate issuing server only when the SSL protocol has been established. | 10-28-2010 |
Patent application number | Description | Published |
20140344274 | INFORMATION STRUCTURING SYSTEM - The present invention periodically and exhaustively extracts analysis dimension candidates from text data, such as medical literatures disclosed on the Internet. A name of disease, a medical agent, a checkup, and an operation included in actual clinical data are linked to the analysis dimension candidates. In the analysis dimension candidates, clinically important candidates and non-important candidates including extraction errors are mixed. To distinguish the candidates, weighting is provided to the link. First, a weight is made large when a level of an evidence of a medical literature from which an analysis dimension candidate is extracted is high. In literature groups of each name of disease, the degree of cooccurrence between a word of an analysis dimension candidate, and a word related to a medical agent/checkup/operation is calculated, and the weight of the link is made larger according to the magnitude of the degree of cooccurrence. | 11-20-2014 |
20150278459 | DIAGNOSTIC PROCESS ANALYSIS SYSTEM - Upon evaluation of a value of a diagnostic process, the value of a diagnostic process is evaluated not based on a simple cost but on a cost required for all processes of a patient who was in the diagnostic process through a follow-up survey. Diagnostic processes that are not relevant to a target diagnostic process are eliminated, clustering is performed on patients to divide the patients into clinically meaningful homogeneous groups, and the target diagnostic process is evaluated for each of the homogeneous groups. For the purpose, importance scores of data pieces of the clinical data are calculated and the relevant data is output using the output result of the medical knowledge extraction unit, clustering is performed on patients in the clinical data, and a clinical index and a cost are output for each of the clusters. | 10-01-2015 |
20150310184 | Regional Medical Cooperation System - The task is to provide a system which supports smooth patient referral from a referral source medical institution to a referral destination medical institution and which particularly prevents readmission due to cases that are difficult to determine simply based on patient attributes or due to the quality of medical services. To achieve this task, a referral difficult degree calculation unit calculates a referral difficulty degree which quantifies the risk that a patient cannot be discharged because a referral destination cannot be found, in consideration of a readmission risk calculated by a readmission risk calculation unit, the geographical distance between the patient and the referral destination medical institution, the total number of patients accepted, and the number of beds available. This referral difficulty degree is outputted to an output unit of the referral source medical institution or the referral destination medical institution. | 10-29-2015 |
20160132644 | Health Care Information Process System - High-quality health care information/medical data is provided. A system accumulating health care information comprises a receiving part that receives the health care information from a computer of a data provider; a memory part that stores therein criteria relating to health care and medical treatment with which the health care information is evaluated; n evaluation part that evaluates a value of the health care information based on the received health care information and the criteria; and a billing part that determines a fee for accumulating the health care information based on the value, the above-mentioned object is achieved. | 05-12-2016 |
Patent application number | Description | Published |
20090254929 | DISK CARRYING DEVICE - A disk carrying device including a transporting roller for carrying a disk, a turntable and a clamper for holding the disk, a trigger plate moved by carrying of the disk to a chucking position for changing a transmission route of driving force from the transporting roller to a cam plate, a first biasing means for urging the trigger plate to a position before moving, a guide base for pressing the disk on the transporting roller, an arm roller disposed on an opposite side of the guide base with respect to the transporting roller so as to move the guide base apart from the transporting roller, and a second biasing means disposed between the guide base and the arm roller. The second biasing means is extended when the disk is present between the guide base and the transporting roller and generates urging force pulling the guide base to the transporting roller. | 10-08-2009 |
20100211965 | CLAMP STRUCTURE IN DISK PLAYING DEVICE - A clamp structure in a disk playing device is structured so that a clamper and a turntable are magnetically coupled to each other to sandwich a disk and that one of the clamper and the turntable is separated from the other to release magnetic coupling and detach the disk. The clamp structure may include a disk stopper for supporting the disk when, for example, the turntable is to be separated from the clamper to prevent the disk and the clamper from following and moving together with the turntable. The disk stopper may be disposed so as to face a non-recording area except a recording area of the disk and the disk stopper may be structured by utilizing a part of a chassis or a feeding roller for feeding the disk. | 08-19-2010 |
20100333122 | DISK CARRYING DEVICE - A disk carrying device including a transporting roller for carrying a disk, a turntable and a clamper for holding the disk, a trigger plate moved by carrying of the disk to a chucking position for changing a transmission route of driving force from the transporting roller to a cam plate, a first biasing means for urging the trigger plate to a position before moving, a guide base for pressing the disk on the transporting roller, an arm roller disposed on an opposite side of the guide base with respect to the transporting roller so as to move the guide base apart from the transporting roller, and a second biasing means disposed between the guide base and the arm roller. The second biasing means is extended when the disk is present between the guide base and the transporting roller and generates urging force pulling the guide base to the transporting roller. | 12-30-2010 |
Patent application number | Description | Published |
20100302476 | LIQUID CRYSTAL LIGHT CONTROL DEVICE AND METHOD FOR PRODUCING THE SAME - In the production method of the present invention, an emulsion including a copolymer with a glass transition temperature (Tg) of −50 to 20° C. is obtained by the emulsion polymerization of a monomer group including a monomer A that is a (meth)acrylic acid alkyl ester (where the alkyl group is an open chain group with 1 to 20 carbon atoms or a cyclic group with 5 to 20 carbon atoms) as the main monomer and a monomer B having a carbon-carbon double bond and a nonionic hydrophilic group such as a polyoxyalkylene group, an amide group, and a hydroxyl group. Liquid crystals are dispersed in this emulsion, which is applied onto a conductive film-coated substrate. Another conductive film-coated substrate is laminated thereto, and thus a liquid crystal light control device is obtained. A monomer C having a carboxyl group and/or an amino group and a carbon-carbon double bond may be used in combination with a crosslinking agent so that a crosslinked structure is introduced into the copolymer. The present invention provides a liquid crystal light control device in which the transparency with a voltage applied and the shielding property with no voltage applied are compatible at high level. | 12-02-2010 |
20120148832 | GLASS ARTICLE PROVIDED WITH PHOTOCATALYST FILM - Provided is a glass article that improves the film strength of a photocatalyst film while maintaining the photocatalytic function and the reflection suppressing function of the photocatalyst film. The photocatalyst film on the glass sheet is formed to contain, in mass %, 50 to 82% of silicon oxide particles, 8 to 40% of titanium oxide particles, and 7 to 20% of a binder component composed of silicon oxide. The average particle diameter of the silicon oxide particles is set to at least 5 times the average particle diameter of the titanium oxide particles. The photocatalyst film is formed to have a structure such that some of the silicon oxide particles in the film serve as protruding silicon oxide particles that are not in contact with the glass sheet and that have their top portions protruding from the surrounding titanium oxide particles and being exposed on the surface of the film, while some of the titanium oxide particles are interposed between the glass sheet and the protruding silicon oxide particles. | 06-14-2012 |
20120244318 | COVER GLASS FOR PHOTOELECTRIC CONVERSION DEVICES AND METHOD FOR PRODUCING THE SAME - In order to eliminate non-uniformity in the appearance of a cover glass for photoelectric conversion devices, the reflectance curve of the cover glass is extremely flattened. Provided is a cover glass for photoelectric conversion devices that includes a glass sheet having an uneven surface such as a figured glass, and a reflection-reducing film formed on the uneven surface. The reflection-reducing film includes silica fine particles and a binder for the silica fine particles. The silica fine particles are arranged in a single layer on the top portion of the uneven surface of the glass sheet, while the silica fine particles are arranged in stacks to a thickness equivalent to at least three layers on the bottom portion of the uneven surface. The uneven surface of the glass sheet has an average spacing Sm of at least 0.4 mm but not more than 2.5 mm and an arithmetic average roughness Ra of 0.5 μm to 5 μm. The cover glass has a reflectance of at least 1.5% but not more than 3% over the entire wavelength range of 380 nm to 780 nm for incident light from the side on which the reflection-reducing film is formed. | 09-27-2012 |
Patent application number | Description | Published |
20110227679 | POWDER MAGNETIC CORE AND METHOD FOR MANUFACTURING THE SAME - The present invention provides a powder magnetic core low in the loss and high in the saturation magnetic flux density and a method for manufacturing the same. More specifically, the present invention provides a powder magnetic core that comprises a soft magnetic metal powder having an average particle size (D50) of 0.5 to 5 μm, a half width of diffraction peak in a <110> direction of α-Fe as measured by X-ray powder diffraction of 0.2 to 5.0°, and an Fe content of 97.0% by mass or more, the core having an oxygen content of 2.0% by mass or more. | 09-22-2011 |
20110286146 | DIELECTRIC CERAMIC COMPOSITION AND CERAMIC ELECTRONIC COMPONENT - A dielectric ceramic composition includes BaTiO | 11-24-2011 |
20120238438 | DIELECTRIC CERAMIC COMPOSITION - A dielectric ceramic composition comprising a main component and at least one or more subcomponent elements has a dielectric particle and a grain boundary. The dielectric particle has a main component phase substantially composed of the main component, and a diffusive phase around the main component phase where at least one selected from the subcomponent elements is diffused, a local minimal value of Cs is located at an outside edge side with respect to a position of the local maximum value of Cs, and Cs is increased from a position of the local minimal value of Cs toward the outside edge, when the dielectric particle is cut on an arbitrary cutting plane including the main component phase, and Cs is defined as a concentration of one or more elements selected from the subcomponent elements in an arbitrary position in the dielectric particle. | 09-20-2012 |
20130094121 | LAMINATED CERAMIC ELECTRONIC PARTS - A compact laminated ceramic electronic component having superior moisture resistance and electrical properties is provided. | 04-18-2013 |
Patent application number | Description | Published |
20120288145 | ENVIRONMENT RECOGNITION DEVICE AND ENVIRONMENT RECOGNITION METHOD - There are provided an environment, recognition device and an environment recognition method. The environment, recognition device obtains a luminance of a target portion in a detection area; obtains a height of the target portion; derives a white balance correction value, assuming that white balancing is performed to the obtained luminance; derives the corrected luminance by subtracting the white balance correction value and a color correction value based upon a color correction intensity indicating a degree of an influence of environment light from the obtained luminance; and provisionally determines a specific object corresponding to the target portion from the corrected luminance of the target portion based on an association of a luminance range and the specific object retained in a data retaining unit. | 11-15-2012 |
20120288146 | ENVIRONMENT RECOGNITION DEVICE AND ENVIRONMENT RECOGNITION METHOD - There are provided an environment recognition device and an environment recognition method. The environment recognition device provisionally determines a specific object corresponding to a target portion from a luminance of a target portion, groups, as a target object, adjacent target portions provisionally determined to correspond to a same specific object, groups, as the target object, the target portions corresponding to a same specific object with respect to the target object and the luminance, when differences in horizontal distance and in height from the target object of target portions fall within a first predetermined range, and determines that the target object is the specific object when a ratio of target portion of which luminance is included in a predetermined luminance range with respect to all target portions in a specific region in the target object is equal to or more than a predetermined threshold value. | 11-15-2012 |
20120288149 | ENVIRONMENT RECOGNITION DEVICE AND ENVIRONMENT RECOGNITION METHOD - There are provided an environment recognition device and an environment recognition method. An environment recognition device | 11-15-2012 |
20120288150 | ENVIRONMENT RECOGNITION DEVICE AND ENVIRONMENT RECOGNITION METHOD - There are provided an environment recognition device and an environment recognition method. The environment recognition device obtains luminances of a target portion in a detection area of a luminance image, assigns a color identifier to the target portion according to the luminances of the target portion, based on association between a color identifier and a luminance range retained in a data retaining unit, an groups target portions assigned one of one or more color identifiers associated with a same specific object, and of which position differences in the width direction and in the height direction are within a predetermined range, based on association between the color identifier and the luminance range retained in the data retaining unit. | 11-15-2012 |
20120288151 | ENVIRONMENT RECOGNITION DEVICE AND ENVIRONMENT RECOGNITION METHOD - There are provided an environment recognition device and an environment recognition method. The environment recognition device provisionally determines a specific object corresponding to a target portion from a luminance of a target portion, groups adjacent target portions provisionally determined to correspond to a same specific object as a target object, derives a representative distance that is a representative value of the relative distance of target portions in the target object, and grouping the target portions as the target object, the target portions corresponding to the same specific object with respect to the target object and the luminance, when a difference in horizontal distance from the target object of the target portions and a difference in height from the target object of the target portions fall within a first predetermined range, a difference between the relative distance and the representative distance of target portions falls within a second predetermined range. | 11-15-2012 |
20120288156 | ENVIRONMENT RECOGNITION DEVICE AND ENVIRONMENT RECOGNITION METHOD - A environment recognition device obtains luminances of a target portion existing in an area specifies a road surface luminance and a reference portion luminance; when the road surface luminance changes by a predetermined value or more, the reference portion luminance does not change by another predetermined value or more, and the changed road surface luminance is not a predetermined color, maintains a white balance correction value prior to the change until the road surface luminance returns to the predetermined color, and, in other cases, derives a white balance correction value to recognize the road surface luminance as the predetermined color; derives a corrected luminance by performing a white balance correction using the white balance correction value on the obtained luminance; and provisionally determines a object corresponding to the target portion from a corrected luminance of the target portion based on an association of a luminance range and the specific object. | 11-15-2012 |
20120288191 | ENVIRONMENT RECOGNITION DEVICE AND ENVIRONMENT RECOGNITION METHOD - There are provided an environment recognition device and an environment recognition method. The device obtains luminances of a target portion in a detection area, assigns a color identifier to the target portion according to the luminances thereof based on an association, retained in a data retaining unit, between a color identifier and a luminance range, groups target portions, of which position differences in the width and height directions are within a predetermined range and to which one or more color identifiers corresponding to a same specific object are assigned, into a target object, based on a association, retained in the unit, between a specific object and the color identifier; and determines an outer edge specified by the target portions to which the color identifiers are assigned according to whether or not the detection area is in the environment where light is diffused, as the outer edge of the target object. | 11-15-2012 |
20140132769 | EXTERIOR ENVIRONMENT RECOGNITION DEVICE - An exterior environment recognition device includes: a specific object detection unit to detect a specific object on the basis of a color image; a data retaining unit to associate and retain the specific object and a luminance range indicating the color of the specific object; and a transparency reduction determination unit to compare a luminance of the color image of the specific object and a luminance range associated with the specific object, and to determine a reduction in transparency of a transparent body located in an image-capturing direction of the onboard camera. | 05-15-2014 |
20150039202 | VEHICLE EXTERIOR ENVIRONMENT RECOGNITION DEVICE - A vehicle exterior environment recognition device includes a traffic light identifying module that identifies one or more traffic lights located ahead of a vehicle, and traffic light colors of the traffic lights, and a control input identifying module that identifies, when multiple traffic lights exist, traffic lights to be used as control inputs based on whether the multiple traffic lights are located on both the left and right sides of a traveling path of the vehicle, and whether the multiple traffic lights are same in color. | 02-05-2015 |
20150039212 | VEHICLE EXTERIOR ENVIRONMENT RECOGNITION DEVICE - A vehicle exterior environment recognition device includes a traveling path predicting module that predicts a traveling path on which a vehicle travels, based on a current traveling condition of the vehicle, a traveling path restricting module that restricts the predicted traveling path in the width direction of the vehicle, according to at least one or more parameters selected from the group consisting of a traveling speed of the vehicle, an indicating state of a blinker, an angular speed of the vehicle, and a steering angle, and a control input identifying module that identifies a traffic indicator that exists ahead of the vehicle based on the restricted traveling path and that is to be used as the control input. | 02-05-2015 |
Patent application number | Description | Published |
20110268277 | COMMUNICATION SYSTEM, FEMTOCELL BASE STATION, AUTHENTICATION APPARATUS, COMMUNICATION METHOD, AND RECORDING MEDIUM - A communication system for solving a problem, in which secure communications security cannot be ensured in communications between a femtocell base station and UE, is provided. The communication system includes UE (User Equipment) and an HLR (Home Location Register) used in an IMS (IP Multimedia subsystem) network and a femtocell base station (Femto AP) that constructs a predetermined communication area. The femtocell base station exists between the UE and the HLR, acquires a concealment key corresponding to the UE from the HLR during authentication of the UE, and executes a concealment process to conceal the identity of the UE based on the concealment key. | 11-03-2011 |
20110269427 | FEMTOCELL COMMUNICATION SYSTEM, APPARATUS, CONTROL METHOD, AND PROGRAM - A Femtocell base station has a determination means and a transmission means. The determination means, upon receiving a location update request message from UE (User Equipment), determines whether a first message that prompts the UE to again attempt a location update should be transmitted to the UE, whether a second message that prompts the UE to divert to another network should be transmitted to the UE, or whether a third message that notifies the UE that the location update request is accepted should be transmitted to the UE. The transmission means transmits to the UE either the first message, or the second message, or the third message in accordance with the determination of the determination means. | 11-03-2011 |
20110305196 | COMMUNICATION SYSTEM, FEMTO-CELL BASE STATION, AUTHENTICATION DEVICE, COMMUNICATION METHOD, AND MEMORY MEDIUM - A communication system that includes at least UE and an HLR that are used in an IMS network further includes: a Femto-cell base station that makes up a predetermined communication area, and a control unit for controlling at least communication between the UE and the HLR. The Femto-cell base station and the control unit are present between the UE and the HLR. The Femto-cell base station includes a transmission unit for transmitting messages received from the UE to the control unit and for transmitting messages received from the control unit to the UE. The control unit converts messages received from the Femto-cell base station to messages that can be recognized by the HLR, and converts messages received from the HLR to messages that can be recognized by the UE. | 12-15-2011 |
20120021736 | FEMTO CELL BASE STATION, COMMUNICATION CONTROL APPARATUS, COMMUNICATION SYSTEM, CONTROL METHOD AND PROGRAM - The femto cell base station is a femto cell base station that connects a UE (User Equipment) to a core network side and includes storing means and control means. The storing means retains subscriber information of the UE visiting an area under control of the femto cell base station. The control means deletes the subscriber information of the UE, that is removed from the control of the femto cell base station, from the storing means. | 01-26-2012 |
20130072199 | COMMUNICATION SYSTEM, GATEWAY DEVICE, FEMTO ACCESS POINT, COMMUNICATION METHOD AND DEVICE PROGRAM - In order to realize hand over between an existing communication network and an FAP in a communication system with a different communication procedure, without requiring improvement of an existing communication system, a gateway device and the Femto Access Point configure virtual RNC means which is recognized as an RNC by an RNC when communication with the RNC is performed, and if the hand over is performed between a BTS and the Femto Access Point, the virtual RNC means transmits and receives a message containing hand over information for call control to and from the RNC. | 03-21-2013 |
20140038565 | FEMTOCELL COMMUNICATION SYSTEM, APPARATUS, CONTROL METHOD, AND PROGRAM - A Femtocell base station has a determination means and a transmission means. The determination means, upon receiving a location update request message from UE (User Equipment), determines whether a first message that prompts the UE to again attempt a location update should be transmitted to the UE, whether a second message that prompts the UE to divert to another network should be transmitted to the UE, or whether a third message that notifies the UE that the location update request is accepted should be transmitted to the UE. The transmission means transmits to the UE either the first message, or the second message, or the third message in accordance with the determination of the determination means. | 02-06-2014 |
20140038595 | FEMTOCELL COMMUNICATION SYSTEM, APPARATUS, CONTROL METHOD, AND PROGRAM - A Femtocell base station has a determination means and a transmission means. The determination means, upon receiving a location update request message from UE (User Equipment), determines whether a first message that prompts the UE to again attempt a location update should be transmitted to the UE, whether a second message that prompts the UE to divert to another network should be transmitted to the UE, or whether a third message that notifies the UE that the location update request is accepted should be transmitted to the UE. The transmission means transmits to the UE either the first message, or the second message, or the third message in accordance with the determination of the determination means. | 02-06-2014 |
20140213260 | COMMUNICATION SYSTEM - When a representative PS server receives a P-TMSI contained in a PDP context succession request signal from a UE according to a handover communication procedure prescribed in an applicable standard after the UE moves, if the PS server identified with the identification information contained in the received P-TMSI is not its own representative PS server, the representative PS server identifies the PS server identified with the identification information as a PS server that manages a femtocell base station to which the UE belonged before it moved and forwards the PDP context succession request signal to the identified PS server. | 07-31-2014 |
20140219252 | COMMUNICATION SYSTEM - When a representative service control device receives a PDP context succession request signal according to a handover communication procedure prescribed in an applicable standard, the representative service control device transmits a P-TMSI contained in the PDP context succession request signal as an address request to a database device. When the representative service control device receives address information of a service control device from the database device, the representative service control device forwards the PDP context succession request signal received from the request transmission means to the received address. | 08-07-2014 |
20150181630 | SERVICE CONTROL APPARATUS, RELAY APPARATUS, FEMTOCELL BASE STATION, COMMUNICATION SYSTEM, CONTROL METHOD, AND PROGRAM - A service control apparatus provides a PS (Packet Switching) service to UE (User Equipment) that are present in a communication area created by a femtocell base station in an IMS (IP Multimedia Subsystem) network. The service control apparatus includes tunnel establishing means that establishes an IPsec (Security Architecture for Internet Protocol) tunnel with the femtocell base station; and service control means that, when there are requests for provision of the PS service from a plurality of the UE, provides the PS service to the plurality of UE by way of a common IPsec tunnel that was established by the tunnel establishing means. | 06-25-2015 |
20150201315 | COMMUNICATION SYSTEM AND APPARATUS FOR PROVIDING SUPPLEMENTARY SERVICE IN FEMTO CELL - When a femto cell base station used for a communication system provided with a function of providing a predetermined supplementary service receives first information indicating supplementary service control from a radio terminal, the femto cell base station converts the received information to a SIP (Session Initiation Protocol) message including the first information and transmits the SIP message to a higher apparatus in the communication system. | 07-16-2015 |
20150304895 | COMMUNICATION SYSTEM - When a voice call is made from or received by UE ( | 10-22-2015 |
20160073248 | COMMUNICATION SYSTEM | 03-10-2016 |
Patent application number | Description | Published |
20100007340 | Angle detecting apparatus and angle detecting method - An angle detecting apparatus includes a rotor fixed to a rotating shaft, a pair of magnetic sensors arranged opposite each other so as to output a first detection signal and a second detection signal, respectively, each of which contains information on the angle of rotation of the rotor, a differential operational circuit performing differential operation on the first detection signal and the second detection signal, and an angle calculating circuit calculating the angle of rotation of the rotating shaft based on the result of the differential operation by the differential operational circuit. Here, the distance between two points where a straight line passing through the center of rotation of the rotor crosses the outer periphery of the rotor is constant. | 01-14-2010 |
20100026282 | Angle detecting apparatus and angle detecting method - An angle detecting apparatus includes a rotor fixed to a rotating shaft, a pair of magnetic sensors arranged close to the outer periphery of the rotor so as to have a difference in angle (π/2) with respect to the center of rotation of the rotor, a differential operational circuit performing differential operation on detection signals output by the magnetic sensors to output a differential signal, and the angle calculating circuit calculating the angle of rotation of the rotating shaft based on the differential signal. The planar shape of the rotor is such that the sum of the distances between the center of rotation and the respective two points where two straight lines crossing at the center of rotation at a crossing angle of (π/2) cross the outer periphery of the rotor is constant, and the planar shape is symmetric with respect to a straight line passing through the center of rotation. | 02-04-2010 |
20110133724 | MAGNETIC POSITION DETECTOR - Magnetic members are arranged along a straight line and can be placed face-to-face with spin-valve magnetoresistive elements. The magnetic pole faces of the magnetic members which can be face-to-face with the spin-valve magnetoresistive elements have different magnetic polarities from the magnetic pole faces of neighboring magnetic members. The magnetic members are arranged at a uniform pitch. Each magnetic member is spaced from neighboring magnetic members. X/P is from 40% to 60%, where X is length of each magnetic member along an arrangement direction of the magnetic members, and P is pitch of the magnetic members along the arrangement direction. | 06-09-2011 |
20150145506 | MAGNETIC SENSOR - A magnetic sensor includes a bias magnetic field generator and a magnetic detection element disposed on one side of the bias magnetic field generator, in a magnetic pole direction. The magnetic sensor identifies a medium, that is a magnetic powder adhered medium or a magnetic film adhered medium, passing across the magnetic detection element on the side opposite to the bias magnetic field generator. The magnetic detection element detects variation in a magnetic field component parallel to a movement direction of the medium identified. A passage region of the medium includes a specific region in which a magnetic field increases when distance from the magnetic detection element becomes larger in the magnetic pole direction. | 05-28-2015 |