Abstract: A magnetodielectric substrate includes a first dielectric layer, a second dielectric layer, conductive patterns, and a plurality of air vias. The first dielectric layer has a predetermined height, and the second dielectric layer is stacked on the first dielectric layer. Conductive patterns are coated on an upper surface and a lower surface of one of the first and second dielectric layers. A plurality of air vias is formed with a predetermined diameter and a predetermined interval such that they pass through up to the conductive patterns of the upper and lower surfaces from the dielectric layer on which the conductive patterns are coated.

Abstract: A vent structure for electromagnetic shielding includes: a conductive shielding case having a vent formed therein: a conductive shielding duct installed on the shielding case so as to cover the vent, including a space formed perpendicular to the direction of motion of air discharged from the vent to vent the air and a discharge port connected from the space to the outside to discharge the air introduced into the space to the outside, and shielding electromagnetic waves; and an EMI (Electro Magnetic Interference) gasket installed at a bonding surface between the shielding case and the shielding duct, and electrically connecting the shielding case and the shielding duct.

Abstract: Disclosed is a system for driving a spherical wheel that includes a rotating sphere having a plurality of magnetic modules and a fixed body. The fixed body has coil modules that generate a magnetic field by current and partially enclose the rotating sphere so that a portion of the rotating sphere is exposed. A support wheel disposed between the rotating sphere and the fixed body is configured to maintain a substantially constant distance between the rotating sphere and the fixed body and rotatably support the rotating sphere. A sensor provided in at least one of the rotating sphere and the fixed body is configured to measure a rotational speed and a position of the rotating sphere, and a control device is configured to receive driving signals, the rotational velocity and the position measured by the sensor and to transmit a control signal supplying a current to the coil module.

Abstract: A Global Positioning System (GPS) signal reception apparatus including a GPS antenna unit, a GPS signal selection unit, and a jamming signal detection unit is provided. The GPS antenna unit includes a first-type antenna and a plurality of second-type antennas which have directivities different from each other. The GPS signal selection unit selects any one of the first-type antenna and the plurality of second-type antennas as a selected antenna. The jamming signal detection unit detects a jamming signal present in a GPS signal by analyzing the GPS signal which is received via the selected antenna.

Abstract: A magnetodielectric substrate includes a first dielectric layer, a second dielectric layer, conductive patterns, and a plurality of air vias. The first dielectric layer has a predetermined height, and the second dielectric layer is stacked on the first dielectric layer. Conductive patterns are coated on an upper surface and a lower surface of one of the first and second dielectric layers. A plurality of air vias is formed with a predetermined diameter and a predetermined interval such that they pass through up to the conductive patterns of the upper and lower surfaces from the dielectric layer on which the conductive patterns are coated.

Abstract: Provided is a bent monopole antenna. The bent monopole antenna includes a printed circuit board, an RF module, a feed line, and a main radiation pattern part and a sub-radiation pattern part. The RF module is installed the printed circuit board to generate an electrical signal. The feed line is connected to the RF module to deliver the electrical signal. The main radiation pattern part and the sub-radiation pattern part serve as a radiation pattern part connected to the feed line to generate an electromagnetic field (electromagnetic waves) using electrical signals applied thereto. The main radiation pattern part has a spiral (helical) pattern passing through the printed circuit board through a via.

Abstract: The present invention provides a synchro-drive mobile robot base which allows a robot to accomplish a 360° endless rotation through a triple shaft mechanism, while a turret, a steering unit and a drive unit are decoupled from each other. The mobile robot base includes the turret (34) having thereon a turret motor (33), a drive motor (29) and a steering motor (19); the steering unit (10) which has a differential gear unit and transmits an actuating force generated from the steering motor (29) to a wheel case (41); a drive unit (20) which has a differential gear unit and transmits an actuating force generated from the drive motor (29) to the wheel (42); and a turret rotating unit (30) which transmits an actuating force generated from the turret motor (33) to the turret (34).

Abstract: An apparatus for filling sealant and a method for manufacturing a liquid crystal display device using the same. The apparatus includes: an upper substrate having an inlet for receiving a sealant; and a lower substrate combined with the upper substrate having a transfer path along which the sealant supplied through the inlet is transferred and having outlets formed at ends of the transfer path that discharge the sealant.

Abstract: Provided is a bent monopole antenna. The bent monopole antenna includes a printed circuit board, an RF module, a feed line, and a main radiation pattern part and a sub-radiation pattern part. The RF module is installed the printed circuit board to generate an electrical signal. The feed line is connected to the RF module to deliver the electrical signal. The main radiation patter part and the sub-radiation pattern part serve as a radiation pattern part connected to the feed line to generate an electromagnetic field (electromagnetic waves) using electrical signals applied thereto. The main radiation pattern part has a spiral (helical) pattern passing through the printed circuit board through a via.

Abstract: A meandered slit antenna is provided. The meandered slit antenna includes: a printed circuit board; an RF module mounted on the printed circuit board to generate a predetermined electric signal; a microstrip feed line connected with the RF module to transmit the predetermined electric signal; and a slot part for radiating an electromagnetic wave induced by the electric signal that is transmitted through the microstrip feed line, the slot part being formed in a meandered shape.

Abstract: The object of this invention is to provide a mobile robot base with a decoupled turret mechanism, including a turret (80), a turret motor (1) provided on the turret (80), an actuating motor unit provided on the turret (80) to actuate a plurality of wheels (90), an actuating gear train unit to transmit an actuating force generated from train (10) coupled between the turret (80) and the turret motor (1), and a differential gear train unit coupled to both the turret gear train and the actuating motor unit, so that the differential gear train unit subtracts the rotation of the turret (80) from the rotation of the actuating motor unit, thus transmitting a subtracted rotation to the plurality of wheels (90), and thus, only the rotation of the actuating motor unit is transmitted to the plurality of wheels (90). the actuating motor unit to the wheels (90).

Abstract: The present invention provides a synchro-drive mobile robot base which allows a robot to accomplish a 360° endless rotation through a triple shaft mechanism, while a turret, a steering unit and a drive unit are decoupled from each other. The mobile robot base includes the turret (34) having thereon a turret motor (33), a drive motor (29) and a steering motor (19); the steering unit (10) which has a differential gear unit and transmits an actuating force generated from the steering motor (29) to a wheel case (41); a drive unit (20) which has a differential gear unit and transmits an actuating force generated from the drive motor (29) to the wheel (42); and a turret rotating unit (30) which transmits an actuating force generated from the turret motor (33) to the turret (34).

Abstract: The object of this invention is to provide a mobile robot base with a decoupled turret mechanism, including a turret (80), a turret motor (1) provided on the turret (80), an actuating motor unit provided on the turret (80) to actuate a plurality of wheels (90), an actuating gear train unit to transmit an actuating force generated from train (10) coupled between the turret (80) and the turret motor (1), and a differential gear train unit coupled to both the turret gear train and the actuating motor unit, so that the differential gear train unit subtracts the rotation of the turret (80) from the rotation of the actuating motor unit, thus transmitting a subtracted rotation to the plurality of wheels (90), and thus, only the rotation of the actuating motor unit is transmitted to the plurality of wheels (90).