Patents Assigned to Wiworld Co., Ltd.
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Patent number: 11923913Abstract: Provided is a satellite pointing system and a satellite pointing method of an automatic satellite tracking antenna using auxiliary LNBs including: an antenna unit configured by coupling a main feeder receiving a satellite broadcast signal and two or more auxiliary feeders to an antenna and a controller tracking a location of a target satellite by analyzing strength of each satellite signal received through the auxiliary feeders and generating a control signal for controlling a pointing direction of the antenna unit based on location information of the tracked target satellite.Type: GrantFiled: April 7, 2021Date of Patent: March 5, 2024Assignee: WIWORLD CO., LTD.Inventor: Chan Goo Park
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Patent number: 11424534Abstract: Provided is a stand-type portable antenna that adjusts elevation and azimuth with a single motor. The stand-type portable antenna has a waterproof structure in a form with the antenna opened, minimizing the size of a protective cover further accommodating an elevation driving range of the antenna. The elevation drive structure is independent from vibrations incurred by the azimuth adjustment of the antenna, thereby forming a structure in which a backlash between axes of the antenna is minimized.Type: GrantFiled: November 6, 2020Date of Patent: August 23, 2022Assignee: WIWORLD CO., LTD.Inventor: Chan Goo Park
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Patent number: 11394474Abstract: Provided are satellite tracking antenna system in a plurality of satellite environments and a satellite tracking method using the same, and more particularly, satellite tracking antenna system and method in a plurality of satellite environments, which may receive a satellite signal by stochastically estimating and tracking a target satellite using pre-stored information on satellite orbits, without information on satellite network identity (NID) for every received satellite signal.Type: GrantFiled: March 25, 2020Date of Patent: July 19, 2022Assignee: WIWORLD CO., LTD.Inventor: Chan Goo Park
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Patent number: 11374313Abstract: The present invention relates to a biaxial antenna using a single motor capable of simplifying an apparatus and saving a manufacturing cost by controlling elevation and azimuth with the single motor. The biaxial antenna includes a fixed central shaft having a screw thread formed on an outer circumference surface thereof, a rotation part having a screw thread formed on an inner circumference surface thereof to be coupled to the fixed central shaft, rotated, and including a first rotation plate which is moved to an upper side or a lower side, an antenna part having a rear surface connected to the first rotation plate and both sides hinge coupled to the rotation part, a motor connected to the rotation part to rotate the rotation part, and a controller controlling the number of revolutions and the degree of rotation of the motor to control elevation and azimuth of the antenna part.Type: GrantFiled: April 3, 2018Date of Patent: June 28, 2022Assignee: WIWORLD CO., LTD.Inventor: Chan Goo Park
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Patent number: 10900806Abstract: The present invention relates to a method for calibration of a gyro sensor which controls the attitude of a device such as an antenna by detecting acceleration with respect to three axis directions and, more particularly, to a method for calibration of a gyro sensor, in which the calibration of the gyro sensor is performed by interworking with a tilt sensor. In particular, it is possible to calibrate the gyro sensor, which detects rotation with respect to a Z-axis by standing a sensor board provided with a sensor, by interworking with a tilt sensor.Type: GrantFiled: February 10, 2017Date of Patent: January 26, 2021Assignee: WIWORLD CO., LTD.Inventor: Changoo Park
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Publication number: 20190056239Abstract: The present invention relates to a method for calibration of a gyro sensor which controls the attitude of a device such as an antenna by detecting acceleration with respect to three axis directions and, more particularly, to a method for calibration of a gyro sensor, in which the calibration of the gyro sensor is performed by interworking with a tilt sensor. In particular, it is possible to calibrate the gyro sensor, which detects rotation with respect to a Z-axis by standing a sensor board provided with a sensor, by interworking with a tilt sensor.Type: ApplicationFiled: February 10, 2017Publication date: February 21, 2019Applicant: WIWORLD CO., LTD.Inventor: Changoo PARK
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Patent number: 9812784Abstract: Provided is a planar horn array antenna includes: a waveguide part; a horn part having one side connected to the waveguide part and the other side formed with an opening for guiding a radio wave incident or emitted thereto; and a radio wave guide part having a dividing member coupled with the opening and consisting of circular dividing holes arranged in a matrix of n×n.Type: GrantFiled: February 18, 2014Date of Patent: November 7, 2017Assignee: WIWORLD CO., LTDInventors: Chan Goo Park, Jun Hee Lee
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Patent number: 9628169Abstract: The present invention relates to an automatic positioning antenna system for receiving multiple satellite signals and a method for tracking satellites to track positions of satellites through a satellite tracking LNB installed separately from a broadcast LNB, recognize the current position through information on tracked satellites and control an antenna to be oriented to the position of a target satellite to quickly receive satellite broadcast signals. The system includes an antenna unit having an antenna to which a broadcast LNB and a satellite tracking LNB receiving satellite signals for satellite tracking are connected, a switching unit for selecting the broadcast LNB or the satellite tracking LNB, a control unit for analyzing signals received through the satellite tracking LNB and controlling the antenna unit to be oriented to a target satellite using tracked satellite information; and a drive unit for moving the antenna unit under the control of the control unit.Type: GrantFiled: November 8, 2011Date of Patent: April 18, 2017Assignee: WIWORLD CO., LTD.Inventor: Chan Goo Park
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Patent number: 9461366Abstract: Provided is a ultra-wideband dual linear polarized wave waveguide antenna for communication having a wideband matching structure in which the inner peripheral surface of the first polarized wave filtering unit or the second polarized wave filtering unit, which filters a first polarized wave or a second polarized wave entering the dual linear polarized wave waveguide antenna and orthogonal to each other, are tapered such that a diameter of the inner peripheral surface becomes smaller, and having an extended path so as to adjust the first polarized wave and the second polarized wave so that they are in-phase. By doing so, the ultra-wideband dual linear polarized wave waveguide antenna is capable of both receiving and transmitting and thus can be used for communication, and can adjust skew angles without being mechanically rotated.Type: GrantFiled: November 24, 2011Date of Patent: October 4, 2016Assignee: Wiworld Co., Ltd.Inventors: Chan Goo Park, Jun Hee Lee
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Patent number: 9356349Abstract: Provided is a micro wideband antenna feeder, and more particularly, to a micro wideband antenna feeder in which a quad scheme antenna and a cross dipole antenna are coupled to each other. The micro wideband antenna feeder includes: a quad scheme antenna; and a cross dipole antenna installed orthogonal to the quad scheme antenna and irradiating current distribution orthogonal to current distribution irradiated from the quad scheme antenna. Since phases 0, 90, 180, and 270 can be shifted by being designed as a feeding network PCB, a circularly polarized wave can be implemented.Type: GrantFiled: November 22, 2010Date of Patent: May 31, 2016Assignee: WIWORLD CO., LTDInventors: Chan Goo Park, Jun Hee Lee
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Publication number: 20140315483Abstract: The present invention relates to an automatic positioning antenna system for receiving multiple satellite signals and a method for tracking satellites to track positions of satellites through a satellite tracking LNB installed separately from a broadcast LNB, recognize the current position through information on tracked satellites and control an antenna to be oriented to the position of a target satellite to quickly receive satellite broadcast signals. The system includes an antenna unit having an antenna to which a broadcast LNB and a satellite tracking LNB receiving satellite signals for satellite tracking are connected, a switching unit for selecting the broadcast LNB or the satellite tracking LNB, a control unit for analyzing signals received through the satellite tracking LNB and controlling the antenna unit to be oriented to a target satellite using tracked satellite information; and a drive unit for moving the antenna unit under the control of the control unit.Type: ApplicationFiled: November 8, 2011Publication date: October 23, 2014Applicant: WIWORLD CO., LTD.Inventor: Chan Goo Park
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Publication number: 20140145893Abstract: Provided is a ultra-wideband dual linear polarized wave waveguide antenna for communication having a wideband matching structure in which the inner peripheral surface of the first polarized wave filtering unit or the second polarized wave filtering unit, which filters a first polarized wave or a second polarized wave entering the dual linear polarized wave waveguide antenna and orthogonal to each other, are tapered such that a diameter of the inner peripheral surface becomes smaller, and having an extended path so as to adjust the first polarized wave and the second polarized wave so that they are in-phase. By doing so, the ultra-wideband dual linear polarized wave waveguide antenna is capable of both receiving and transmitting and thus can be used for communication, and can adjust skew angles without being mechanically rotated.Type: ApplicationFiled: November 24, 2011Publication date: May 29, 2014Applicant: WIworld Co., Ltd.Inventors: Chan Goo Park, Jun Hee Lee
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Publication number: 20130210372Abstract: The present invention relates to a micro wideband antenna feeder, and more particularly, to a micro wideband antenna feeder in which a quad scheme antenna and a cross dipole antenna are coupled to each other. The micro wideband antenna feeder includes: a quad scheme antenna; and a cross dipole antenna installed orthogonal to the quad scheme antenna and irradiating current distribution orthogonal to current distribution irradiated from the quad scheme antenna. According to preferred embodiments of the present invention, since phases 0, 90, 180, and 270 can be shifted by being designed as a feeding network PCB, a circularly polarized wave can be implemented.Type: ApplicationFiled: November 22, 2010Publication date: August 15, 2013Applicant: WIWORLD CO., LTDInventors: Chan Goo Park, Jun Hee Lee
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Publication number: 20120319915Abstract: Provided is a helix feed broadband antenna having a reverse center feeder, which minimizes an antenna enclosure and a radio wave shadow area by using the reverse center feeder including a reflecting plate and a rear radiation pattern, thereby enhancing performance of an antenna. The helix feed broadband antenna having a reverse center feeder, including a reverse center feeder which radiates an antenna radiation pattern backward; and a reflecting plate which is positioned at a rear side of the reverse center feeder so as to receive and transmit radio wave by reflecting an antenna beam radiated from the reverse center feeder.Type: ApplicationFiled: May 25, 2010Publication date: December 20, 2012Applicant: WIWORLD CO., LTD.Inventors: Wan Lae Roh, Chan Goo Park
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Patent number: 8314735Abstract: A satellite tracking antenna system with improved tracking characteristics and operating method thereof are disclosed. The system independently controls an elevation angle and an azimuth angle of an antenna according to the movement of a vehicle, controls the elevation angle of the antenna only when a satellite elevation-angle variation is equal to or higher than a reference value, so that it can improve the tracking speed and performance of the satellite. The system includes an antenna unit, a GPS receiver, an azimuth-angle gyro-sensor, a control board, a motor unit. The control board includes an elevation-angle controller and a main controller. The motor unit includes an elevation-angle motor and an azimuth-angle motor.Type: GrantFiled: May 7, 2010Date of Patent: November 20, 2012Assignee: Wiworld Co., Ltd.Inventor: Chan Goo Park
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Publication number: 20090224988Abstract: A satellite tracking mode-selectable satellite antenna system is disclosed. In one embodiment, the satellite antenna system includes an antenna unit installed in a mobile body for receiving a satellite signal, a motor unit for rotating an oriented direction of the antenna unit, an outdoor unit (ODU) for driving the motor unit to orient the antenna unit toward a satellite, and an indoor unit (IDU) for controlling the ODU to orient the antenna unit toward the satellite. The satellite antenna system further includes a gyro sensor unit detachably installed in the mobile body for sensing motion of the mobile body. One embodiment of the invention is capable of selecting an in-motion mode of tracking and acquiring the initial position of a satellite and then continuously tracking the position of the satellite, or a positioner mode of tracking and acquiring the initial position of the satellite and then fixing the oriented direction of an antenna.Type: ApplicationFiled: March 5, 2009Publication date: September 10, 2009Applicant: WIWORLD CO., LTD.Inventor: Chan Goo PARK
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Patent number: 7477203Abstract: The present invention relates to an artificial satellite tracking antenna installed in moving objects, such as vehicles, ships, trains, or the like, and automatically tracking position of the satellite such that viewers may conveniently watch satellite broadcasting when in motion without adjusting the antenna.Type: GrantFiled: June 18, 2004Date of Patent: January 13, 2009Assignee: Wiworld Co., Ltd.Inventor: Chan goo Park