Patent application number | Description | Published |
20090147428 | METAL CASE AND UNIT CELL FOR PREVENTING ELECTROSTATIC DISCHARGE AND METHOD OF FORMING THE SAME - A metal case for preventing electrostatic discharge includes an electromagnetic bandgap restricting current generated by electrostatic discharge and formed by arrangement of unit cells. Further, a method of forming a metal case preventing an electrostatic discharge includes forming an electromagnetic bandgap by arranging a plurality of unit cells; and forming a metal case having the electromagnetic bandgap to restrict current generated by the electrostatic discharge. | 06-11-2009 |
20090201212 | Antenna system having electromagnetic bandgap - An antenna system includes an antenna transmitting and receiving a signal; a power feeding line feeding electric power to the antenna; and a metal conductor ground electrically connected to the power feeding line. Further, the metal conductor ground includes an electromagnetic bandgap. | 08-13-2009 |
20090237323 | Apparatus and method for reducing electromagnetic waves - An apparatus for reducing electromagnetic waves, includes an electromagnetic bandgap for reducing a surface current induced by electromagnetic waves that are emitted from a radiator; and an absorber for reducing a surface current around the electromagnetic bandgap and for diminishing diffracted waves radiated from an end of a terminal. | 09-24-2009 |
20090284404 | ELECTROMAGNETIC WAVE ABSORBER USING RESISTIVE MATERIAL - An electromagnetic wave absorber includes a ground layer made of a metal conductor, a dielectric layer formed on the ground layer, and a unit cell pattern made of a resistive material, and formed on the dielectric layer. The unit cell pattern includes a fundamental patch having a regular square shape, in which a rectangular recess is formed on the center of each of the respective sides, the fundamental patch being located at the center of each of the unit cell pattern, and half cross dipole patches, which are respectively disposed at the four sides of the fundamental patch at a regular angle so as to be engaged with the recesses formed on the respective sides of the fundamental patch at a regular interval. | 11-19-2009 |
20130116572 | METHOD AND APPARATUS FOR MEASURING 3-DIMENSIONAL OBJECT SHAPE BASED ON SHADOWS - An apparatus measures a 3-Dimensional (3D) shape of an object. The apparatus includes a light emitting unit and a light receiving unit that are arranged to face each other with the object disposed in a space defined therebetween, wherein the light transmitting unit being arranged to scan the object, and the light receiving unit being arranged to sense a shadow of the scanned object formed thereon. The apparatus includes a rotation unit arranged to rotate the light emitting unit and the light receiving unit about a same rotational axis by a preset rotation angle until the rotation is fully made by a desired target angle and a shape restoration unit configured to measure a 3D shape of the object using shadows that are obtained for each preset rotation angle. | 05-09-2013 |
20130249746 | METHOD AND APPARATUS FOR MEASURING RADIATED POWER OF ANTENNA - An apparatus for measuring radiated power of an antenna includes a chamber which an absorber is attached to a wall thereof; a source antenna and a test antenna configured to be arranged within the chamber; a rotational axis configured to adjust an arrangement angle of the test antenna in up-and-down directions; and a roll positioner configured to rotate the test antenna. Further, the apparatus includes a turntable configured to be provided within the chamber and be rotated in a left-to-right direction; a connection unit configured to allow the test antenna, to rotate in the left-to-right direction; and a supporting unit configured to be rotatably connected to one end of the rotational axis which the other end thereof is rotatably connected to the roll positioner. | 09-26-2013 |
20140136134 | METHOD AND APPARATUS FOR CALCULATING ELECTROMAGNETIC WAVE FROM ELECTRONIC DEVICE - A method of calculating an electromagnetic wave, includes measuring an electromagnetic wave emitted from an electronic device using an electromagnetic-wave scanner; and receiving the electromagnetic wave as input to detect an electromagnetic wave value in a proximity plane at a prescribed first distance from the electronic device. Further, the method includes calculating an electromagnetic wave at a point by a second distance from the electronic device using the electromagnetic wave value. | 05-15-2014 |
20140285655 | APPARATUS AND METHOD FOR MEASURING SHAPE OF UNDERWATER OBJECT - An apparatus for measuring a shape of an underwater object includes a laser emitter configured to irradiate a laser on a surface of a measurement target object under water; and a camera configured to capture a laser point generated at the surface of the measurement target object by the laser emitter. Further, the apparatus includes a shape restorer configured to convert a pixel coordinates value of the laser point captured by the camera into an absolute coordinates value to restore a three-dimensional (3D) shape of the measurement target object. | 09-25-2014 |
20140316260 | APPARATUS AND METHOD FOR SELF-EXAMINING ABNORMALITY OF BREAST TISSUE - An apparatus for self-examining whether a breast tissue is abnormal includes an examination checker configured to transmit a microwave to one side of an examinee's breast, receive the microwave that has passed through the breast and calculate a value in the microwave reception of the received microwave. Further, the apparatus includes a self-examination device configured to analyze the value in the microwave reception received from the examination checker and examines whether the breast is abnormal. | 10-23-2014 |
20150042508 | METHOD AND APPARATUS FOR RECONSTRUCTING DIELECTRIC IMAGE USING ELECTROMAGNETIC WAVES - A method for reconstructing a dielectric image using electromagnetic waves, comprising: acquiring a measurement value of the electromagnetic waves; generating a matching system matrixes between the meshes; generating a smoothed dyadic Green's function matrix; generating an electromagnetic wave calculation value; calculating a misfit error between the acquired electromagnetic wave measurement value and the generated electromagnetic wave calculation value, and checking whether a change of the calculated misfit error satisfies a predetermined optimization determination condition; updating dielectric parameters at the meshes; and outputting a reconstructed dielectric image in the image reconstruction region. | 02-12-2015 |