Kyeong Jun
Kyeong Jun Kim, Yongin-Si KR
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20090124288 | INTEGRAL COMMUNICATION DEVICE AND CONTROL METHOD THEREOF - An integral communication device and method for controlling the integral communication device are provided for expanding the communication capability of a mobile terminal. An integral communication device of the present invention includes a plurality of communication modules that operate with different communication standards, a connector having terminals for electrical connection to a mobile terminal, a switch for switching the terminals of the connector between the communication modules, and a device controller for controlling the switch to establish electric links to the communication modules individually. | 05-14-2009 |
Kyeong Jun Kim, Suwon-Si KR
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20140083755 | LAMINATED CHIP ELECTRONIC COMPONENT, BOARD FOR MOUNTING THE SAME, AND PACKING UNIT THEREOF - A laminated chip electronic component includes: a ceramic body including internal electrodes and dielectric layers; external electrodes formed to cover both end portions of the ceramic body in a length direction; an active layer in which the internal electrodes are disposed in an opposing manner, while having the dielectric layers interposed therebetween, to form capacitance; and upper and lower cover layers formed on upper and lower portions of the active layer in a thickness direction, the lower cover layer having a thickness greater than that of the upper cover layer. | 03-27-2014 |
Kyeong Jun Kim, Suwon KR
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20150062421 | CAMERA MODULE - There is provided a camera module including: a lens barrel including at least one lens disposed on an optical axis; a housing having the lens barrel disposed therein; and first and second elastic members elastically supporting upper and lower portions of the lens barrel, respectively, wherein the first and second elastic members include a fixed side coupled to the housing and a driving side coupled to the lens barrel, respectively, the fixed side and the driving side being disposed to face each other based on the optical axis. | 03-05-2015 |
Kyeong Jun Ko, Seoul KR
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20120177097 | METHOD FOR GENERATING HYBRID CODEBOOK AND HYBRID MU-MIMO SYSTEM - A method for generating a hybrid codebook for a Multi-User Multiple-input Multiple-Output (MU-MIMO) system includes the steps of: generating a parent matrix set including a plurality of M×M unitary matrices when the number of transmitter antennas is M; and generating a child matrix set dependent on the parent matrix set by using training vectors included in a random training set and each column for each unitary matrix of the parent matrix set as an initial vector codebook. | 07-12-2012 |
20130215987 | MIMO SYSTEM AND METHOD OF GENERATING HIERARCHICAL CODEBOOK THEREFOR - Disclosed is a multiple-input multiple-output (MIMO) system including a transmitting end and a receiving end, wherein the transmitting end includes: a hierarchical codebook in which at least one base codebook is designated as the upper matrix and a child codebook generated based on a chordal distance between respective codewords configuring the base codebook is designated as the lower matrix; a scheduler configured to receive channel state information from the receiving end and select precoding matrices from the hierarchical codebook based on the channel state information; and a precoder configured to apply the precoding matrices selected in the scheduler to data to be transmitted to the receiving end and transmit the selected precoding matrices through a plurality of antennas. | 08-22-2013 |