Patent application number | Description | Published |
20100141776 | CALIBRATING DEVICE FOR CALIBRATION AND IMAGE MEASUREMENT SYSTEM COMPRISING CALIBRATING DEVICE - A calibrating device for calibration of an image measurement system. The calibrating device includes a main body having an upper surface, and a characteristic portion, which serves as a benchmark for calibration and is in the form of a recess formed in the upper surface of the main body, wherein the characteristic portion includes a side surface extending in a direction crossing the upper surface, and a bottom surface extending in a direction crossing the side surface, the bottom surface has an optical reflectance lower than an optical reflectance of the upper surface in relation to light identical to each other. This can provide a calibrating device for calibration of an image measurement system, which can detect the characteristic portion on the calibrating device stably, precisely and independent of the illumination conditions, which is less costly and can be easily handled. | 06-10-2010 |
20110029131 | APPARATUS AND METHOD FOR MEASURING TOOL CENTER POINT POSITION OF ROBOT - A measurement apparatus for determining a position of a tool center point ( | 02-03-2011 |
20110295421 | DEVICE AND A METHOD FOR RESTORING POSITIONAL INFORMATION OF ROBOT - A device for restoring positional information of a robot provided with a first member and a second member connected movable relative to each other via an articulation axis; a motor moving the second member relative to the first member; and a sensor outputting a sensor signal according to a driving amount of the motor. The device includes an imaging section obtaining an image signal in a region including a first mark and a second mark representing a positional relationship between the first member and the second member; a mark position computation section computing a first positional relationship between the first mark and the second mark at a first time and a second positional relationship between the first mark and the second mark at a second time, based on an image signal obtained by the imaging section at the first time and at the second time; and a correction section correcting positional information depending on a sensor signal output by the sensor after the second time, based on the first positional relationship and the second positional relationship, a first sensor signal output by the sensor at the first time and a second sensor signal output by the sensor at the second time. | 12-01-2011 |
20140156072 | APPARATUS AND METHOD FOR MEASURING TOOL CENTER POINT POSITION OF ROBOT - A measurement apparatus for determining a position of a tool center point ( | 06-05-2014 |
Patent application number | Description | Published |
20080207226 | POSITIONING SYSTEM, POSITIONING METHOD, AND POSITIONING PROGRAM - An object of the present invention is to implement accurate positioning of a mobile communication terminal even in an environment in which delay waves are included in radio waves arriving at the mobile communication terminal from radio wave sources. A positioning server | 08-28-2008 |
20080252528 | POSITIONING SYSTEM, POSITIONING IC CHIP, POSITIONING METHOD AND POSITIONING PROGRAM - The present invention easily evaluates the positioning accuracy by using fewer signal sources. The receiver is a positioning system for estimating the position of the receiver itself which is constituted by: a distance calculation section which calculates information indicating the respective distances between a plurality of GPS satellites and the receiver on the basis of signals which are transmitted by the plurality of GPS satellites and received by the receiver; a position calculation section which calculates the position of the receiver from information indicating the positions of the respective GPS satellites and information indicating the respective distances thus calculated; a distance difference calculation section which calculates, for each of the GPS satellites, the differences between the respective distances from the calculated position of the receiver to the respective GPS satellites, and the respective distances calculated by the distance calculation section; and a position accuracy evaluation section which evaluates an accuracy of the calculated position of the receiver on the basis of variation, between the GPS satellites, of the calculated differences, for each of the GPS satellites. | 10-16-2008 |
20090015471 | POSITIONING SYSTEM, IC CHIP FOR POSITIONING, POSITIONING METHOD, AND POSITIONING PROGRAM - A positioning system accurately estimates transmission times of signals from a signal transmitter and measures a position of a receiver on the basis of the transmission times. The receiver | 01-15-2009 |
20100007552 | POSITIONING SYSTEM, POSITIONING METHOD, AND POSITIONING PROGRAM - An object of the present invention is to obtain a positioning result according to a condition of a receiver in a shorter period of time. A positioning server | 01-14-2010 |
Patent application number | Description | Published |
20100317366 | INDOOR/OUTDOOR DECISION APPARATUS AND INDOOR/OUTDOOR DECISION METHOD - An appropriate indoor/outdoor decision is made for a mobile communication terminal in accordance with a purpose of selection of a positioning method or the like. A positioning server | 12-16-2010 |
20100323628 | BUILDING INFLUENCE ESTIMATION APPARATUS AND BUILDING INFLUENCE ESTIMATION METHOD - Appropriate and easy estimation is achieved for influence of a building on a mobile communication terminal. A building influence estimation apparatus | 12-23-2010 |
20110210904 | APPARATUS HAVING MUSHROOM STRUCTURES - An apparatus having multiple mushroom structures is disclosed. Each of the multiple mushroom structures including: a ground plate; a first patch provided parallel to the ground plate with a separation of a distance to the ground plate; and a second patch provided parallel to the ground plate with a separation of another distance to the ground plate, which another distance being different from the distance from the first patch to the ground plate, wherein the second patch is a passive element which is capacitatively coupled with at least the first patch. | 09-01-2011 |
20110210905 | APPARATUS HAVING MUSHROOM STRUCTURES - An apparatus having multiple mushroom structures is disclosed. Each of the multiple mushroom structures includes: a ground plate; a patch provided parallel to the ground plate with a separation of a distance to the ground plate, wherein a distance between a ground plate and a patch in a certain mushroom structure is different from a distance between a ground plate and a patch in a different mushroom structure. | 09-01-2011 |
20110210906 | APPARATUS HAVING MUSHROOM STRUCTURES - An apparatus having multiple mushroom structures is disclosed. Each of the multiple mushroom structures includes: a ground plate; a first patch provided parallel to the ground plate with a separation of a distance to the ground plate; and a second patch provided parallel to the ground plate with a separation of another distance to the ground plate, which another distance being different from the distance from the first patch to the ground plate, wherein the second patch is a passive element which is capacitatively coupled with at least the first patch. | 09-01-2011 |
20120057619 | RELAY APPARATUS AND RELAY METHOD - A relay apparatus is disclosed for relaying a signal from a transmitter to a receiver in a MIMO (Multiple Input Multiple Output) based communication system, comprising: a power difference determination unit configured to determine a difference of reception levels between a direct wave and a relayed wave based on positional relationship among the transmitter, the relay apparatus and the receiver, the direct wave traveling from the transmitter to the receiver without the relay apparatus, the relayed wave traveling from the transmitter to the receiver via the relay apparatus; a gain determination unit configured to determine an amplification gain of the relay apparatus to make the difference smaller; and a transmitting unit configured to amplify the signal from the transmitter at the determined amplification gain and transmit the amplified signal to the receiver. | 03-08-2012 |
20120302177 | PROPAGATION PATH ESTIMATION METHOD AND PROGRAM AND APPARATUS USING THE SAME - A propagation path estimation method using an imaging method according to the invention includes a step of, in a case where a reflectarray which causes reflection and scattering in a different direction (θ−η)° from a specular reflection direction θ° exists on a propagation path from a transmission point to a reception point RX of the radio wave, calculating a virtual reception point VRX by rotating the reception point RX about a rotation center point O, and estimating the propagation path by using the virtual reception point VRX. | 11-29-2012 |
20120303328 | PROPAGATION PATH ESTIMATION METHOD AND PROGRAM AND APPARATUS USING THE SAME - A propagation path estimation method using an imaging method according to the invention includes a step of, in a case where a reflect array | 11-29-2012 |
Patent application number | Description | Published |
20110136525 | RADIO BASE STATION, RELAY APPARATUS AND RADIO COMMUNICATION METHOD - A radio base station determines a communication mode for each radio communication terminal from among a direct mode for communicating without via a relay apparatus, a relay mode for communicating via the relay apparatus by using a directional beam transmitted between the radio base station and the relay apparatus, and a combined mode for communicating by combining the direct mode and the relay mode based on the reception power information acquired from each radio communication terminal, and communicates with the each radio communication terminal by using the communication mode determined for the each radio communication terminal. | 06-09-2011 |
20110156950 | Positioning System and Positioning Method - It is an object of the present invention to perform positioning at favorable positioning precision and in a favorable positioning time, according to whether a receiver is indoors or outdoors. A positioning server | 06-30-2011 |
20110156951 | Positioning System and Positioning Method - It is an object of the present invention to obtain a positioning result corresponding to the state of a receiver in less time. A positioning server | 06-30-2011 |
20110156952 | Positioning System and Positioning Method - It is an object of the present invention to perform positioning at the proper positioning time and positioning precision in response to a requirement with respect to positioning. A positioning server | 06-30-2011 |
20110189960 | Estimating Whether A Wireless Terminal Is Indoors Using Pattern Classification - A method and apparatus for estimating whether or not a wireless terminal is indoors are disclosed. The illustrative embodiment employs a pattern classifier that is trained on a plurality of input/output mappings, where each mapping corresponds to a respective location, the output of the mapping is a Boolean value that indicates whether the location is indoors, and the input of the mapping is based on empirical and predicted signal data for the location. In accordance with the illustrative embodiment, a computer-executable program is generated based on the trained pattern classifier. The computer-executable program estimates whether or not a wireless terminal is indoors based on empirical data reported by the terminal, and on a location estimate for the terminal that might be crude or inaccurate (e.g., based on Cell Identifier [Cell-ID], GPS, etc.). | 08-04-2011 |
Patent application number | Description | Published |
20130229296 | MULTI-BEAM REFLECTARRAY - A multi-beam reflectarray includes two or more element arrays including plural elements aligned along a predetermined direction. The multi-beam reflectarray is such that, in each of a first element group and a second element group included in at least one of the element arrays, a difference between phases of radio waves reflected by corresponding two elements is in proportion to a first product of a distance between the two elements and a value of a trigonometric function with respect to an angle of reflection by the two elements, and a distance between neighboring elements in the first element group is equal to a product of a rational number and a distance between neighboring elements in the second element group. | 09-05-2013 |
20150015455 | REFLECTARRAY AND DESIGN METHOD - A reflectarray reflects an incident wave in a desired direction. The reflectarray includes a substrate including a surface which is perpendicular to a predetermined axis, and elements disposed on the substrate. A specific element among the elements reflects the incident wave with a specific reflection phase among a plurality of reflection phases. Each of the elements has an element structure including, at least, a patch and a ground plate. Element spacing of first neighboring elements is different from element spacing of second neighboring elements, and a length of a gap between patches of the first neighboring elements is equal to a length of a gap between patches of the second neighboring elements. | 01-15-2015 |
20150022414 | REFLECTARRAY AND DESIGN METHOD - A method of designing a reflectarray including a substrate having a surface perpendicular to a predetermined axis, wherein elements are disposed on the substrate. The method obtains a reflection phase of the elements as a function of a design parameter such as element spacing, when a radio wave enters the arranged elements, and stores a relationship between the reflection phase and the design parameter in a memory. Here, the design parameter is equally set for the elements. The method repeatedly determines, for each of the elements, the design parameter of a specific element in accordance with the relationship. The function of the design parameter has a range of almost 360 degrees with respect to a range of the design parameter. The reflection phase is the continuous function of the element spacing such that two resonant points occur at which the reflection phase becomes zero. | 01-22-2015 |
20150061966 | REFLECTARRAY AND DESIGN METHOD - A reflectarray reflects an incident wave in a desired direction. The reflectarray includes a substrate including a surface which is perpendicular to a predetermined axis; and at least first and second element groups, wherein the first and second element groups are disposed on the substrate, and include elements that reflect a radio wave. The first element group and the second element group reflect the radio wave with corresponding reflection phases which are different from each other. The radio wave enters while forming an angle other than 0 degrees with respect to the predetermined axis. The elements included in the first element group reflect the radio wave with a first reflection phase, and the elements included in the second element group reflect the radio wave with a second reflection phase, wherein the second reflection phase is different from the first reflection phase. | 03-05-2015 |
20150070246 | REFLECTARRAY - A reflectarray reflects an incident wave in a desired direction, and the reflectarray includes a plurality of elements arranged in a first direction and in a second direction perpendicular to the first direction. The elements reflect the incident wave. A phase of a reflected wave by one element among the plurality of elements differs from a phase of the reflected wave by an element adjacent to the one element in the first direction by a predetermined value, and the phase of the reflected wave by the one element is equal to a phase of the reflected wave by an element adjacent to the one element in the second direction. Gap sizes between patches of a predetermined plural number of elements arranged in the first direction vary from a smallest value to a largest value. Here, an oblique TM incidence is utilized at a spurious resonance frequency. | 03-12-2015 |
20150229029 | REFLECTARRAY - A reflectarray having multiple elements arranged in an array, each element having a H-shaped patch provided in separation from a ground plate, the H-shaped patch formed by four outer vertices defined by two rectangular outer patches and four inner vertices defined by an inner patch. A length of the inner patch with respect to a first direction is determined to change the reflection phase of an electric field incoming in parallel to the first direction while keeping positions of the four outer vertices and sizes of the outer patches constant. The first direction is determined by positions of the four inner vertices, and a length of the H-shaped patch with respect to a second direction is determined to change the reflection phase of an electric field incoming in parallel to the second direction, wherein the second direction is determined by positions of the four outer vertices. | 08-13-2015 |