Patent application number | Description | Published |
20080310680 | Frontal View Imaging and Control Device Installed on Movable Object - A frontal view imaging and control device installed on a movable object, includes: an image input unit receiving an image taken by an image device that captures a region of a road surface in a predetermined direction; a projection transformation unit linking each pixel of the image onto a virtual two-dimensional plane of a road surface through coordinate transformation so as to form a virtual projection image on the two-dimensional plane; a projection likelihood calculation unit dividing the virtual projection image into a distant view section and a close view section, and calculating similarity defined between a projection of the distant view section and a projection of the close view section; and an attitude angle calculation unit determining an angle of depression and a panning angle that maximize the similarity as a measured attitude angle that indicates an image capturing direction of the imaging device. | 12-18-2008 |
20090195342 | COMMON MODE CHOKE COIL - A common mode choke coil includes a core, external electrodes, a pair of windings, and a top plate. The core includes a winding core portion and a pair of flanges disposed at respective ends thereof. The external electrodes are provided at lower portions of the flanges. The pair of the windings is wound around the winding core portion of the core, and ends thereof are connected to the external electrodes, respectively. A lower surface and a side surface of the top plate are covered with a metal film and are adhered to upper surfaces of the flanges with an adhesive. Preferably, magnetic powder is mixed in the adhesive. | 08-06-2009 |
20100026316 | ELECTRONIC APPARATUS NOISE MEASUREMENT METHOD - Second and third ports of a network analyzer are individually connected via cables to predetermined connection points on a differential transmission circuit on an object to be measured. A differential cable is connected to the differential transmission circuit. An antenna for receiving an electromagnetic wave radiated from the differential cable is connected to a first port of the network analyzer via a first cable. The network analyzer measures a three-port S parameter of the first, second, and third ports and calculates common-mode and normal-mode components of noise radiated from the differential cable. As a result, the source of noise in an electronic apparatus can be determined, and common-mode noise and normal-mode noise can be separately measured. | 02-04-2010 |
20100045418 | COMMON-MODE CHOKE COIL - A common-mode choke coil has induction immunity characteristics that are improved by a coil structure preventing a transmitter IC and a receiver IC from malfunctioning during an induction immunity test and which controls a decrease in ESD resistance and a decrease in self-resonance frequency. The common-mode choke coil includes a core, external electrodes, a pair of coils, and a top plate. The core includes a core section and a pair of flange sections. The pair of coils are wound around the core section of the core, and the ends of the coils are connected to the external electrodes, respectively. An underside and a side surface of the top plate are plated with a metal film, and bonded to the top surfaces of the flange sections preferably by an adhesive agent. The metal film is segmented into two separate portions so as to define two separate metal sections with a gap therebetween so that the metal sections are electrically disconnected. | 02-25-2010 |
20100090790 | COMMON-MODE CHOKE COIL - A common-mode choke coil includes a core, external electrodes, a pair of wires, and a top plate. The core includes a winding core portion and a pair of flanges at both ends of the winding core portion. The upper surface of the winding core portion and the upper surfaces of the flanges are covered with a metal film. The external electrodes are provided on lower portions of the flanges. A pair of wires are wound on the winding core portion of the core, and the ends of the wires are connected to the external electrodes. The top plate is bonded to the upper surfaces of the flanges preferably via an adhesive. | 04-15-2010 |
20110175998 | MOTION CALCULATION DEVICE AND MOTION CALCULATION METHOD - A motion calculation device includes an image-capturing unit configured to capture an image of a range including a plane and outputs the captured image, an extraction unit configured to extract a region of the plane from the image, a detection unit configured to detect feature points and motion vectors of the feature points from a plurality of images captured by the image-capturing unit at a predetermined time interval; and a calculation unit configured to calculate the motion of the host device based on both of an epipolar constraint relating to the feature points and a homography relating to the region. | 07-21-2011 |
20130142388 | ARRIVAL TIME ESTIMATION DEVICE, ARRIVAL TIME ESTIMATION METHOD, ARRIVAL TIME ESTIMATION PROGRAM, AND INFORMATION PROVIDING APPARATUS - An arrival time estimation device includes an image input unit configured to input an image signal to each frame, an object detecting unit configured to detect an object indicated by the image signal input through the image input unit, and an arrival time calculating unit configured to calculate a rotation matrix indicating rotation of an optical axis of an imaging device that captures the image signal based on a direction vector indicating a direction to the object detected by the object detecting unit, to calculate a change in a distance to the object based on a vector obtained by multiplying a past direction vector by the calculated rotation matrix and a current direction vector, and to calculate an arrival time to the object based on the calculated distance change. | 06-06-2013 |
20130182896 | GRADIENT ESTIMATION APPARATUS, GRADIENT ESTIMATION METHOD, AND GRADIENT ESTIMATION PROGRAM - A gradient estimation apparatus includes a feature point extracting unit configured to extract feature points on an image captured by an imaging unit, an object detecting unit configured to detect image regions indicating objects from the image captured by the imaging unit, and a gradient calculating unit configured to calculate a gradient of the road surface on which the objects are located, based on the coordinates of the feature points extracted by the feature point extracting unit in the image regions indicating the objects detected by the object detecting unit and the amounts of movements of the coordinates of the feature points over a predetermined time. | 07-18-2013 |