Changheon
Changheon Kang, Paju-Si KR
Patent application number | Description | Published |
---|---|---|
20120098877 | ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE - Disclosed in an organic light emitting diode display device including: a driving element for controlling a driving current, a first TFT that switches a current path between the first node and the second node, a second TFT that switches a current path between a data line and a third node, a third TFT that switches a current path between the third node and a reference voltage input terminal, a fourth TFT that switches a current path between the second node and a fourth node, an organic light emitting diode connected between the fourth node and a ground voltage input terminal to emit a light by the driving current, a storage capacitor connected between the first node and the third node, and a variable capacitor connected between the first node and the first gate line and having a capacity changed when the first TFT is turned on and off. | 04-26-2012 |
Changheon Kang, Paju KR
Patent application number | Description | Published |
---|---|---|
20140085176 | SHIFT REGISTER, DRIVING METHOD THEREOF AND FLAT PANEL DISPLAY DEVICE - A shift register includes a plurality of stages each having a pull-up transistor, a pull-down transistor and a flip-flop, the plurality of stages outputting high level output voltages sequentially for one horizontal period in response to at least one clock signal and a start signal, and an AH control circuit connected to input terminals and output terminals of the plurality of stages to control output signals of all the stages into a high level for one frame. | 03-27-2014 |
Changheon Kang, Gyeonggi-Do KR
Patent application number | Description | Published |
---|---|---|
20150035734 | Display Device Using a Demultiplexer Circuit - A display device is disclosed to include a display panel including a plurality of data lines, a plurality of gate lines, and a plurality of pixels coupled to the data lines and gate lines. The data lines include first and second data lines, and the pixels include first and second color pixels. The display device also includes a data driving circuit to generate data voltages through a plurality of output channels, a gate driving circuit coupled to the gate lines, and a timing controller to generate control signals to the data driving circuit and the gate driving circuit. The display device further includes a demultiplexer switching circuit with first demux switches to supply, when turned on, the data voltages from the output channels to the first data lines, and second demux switches to supply, when turned on, the data voltages from the output channels to the second data lines. | 02-05-2015 |
Changheon Lee, Seoul KR
Patent application number | Description | Published |
---|---|---|
20130096928 | METHOD AND APPARATUS FOR PROCESSING AN AUDIO SIGNAL - The present invention relates to a method for processing an audio signal, comprising: determining bandwidth information indicating to which of a plurality of bands the current frame corresponds; determining information on the order corresponding to the present frame on the basis of the bandwidth information; performing a linear predictive analysis of the present frame to generate a first set linear predictive transform coefficient of a first order; performing a vector quantization on the first set linear predictive coefficient to generate a first index; performing a linear predictive analysis of the current frame to generate a second set linear predictive transform coefficient of a second order in accordance with the information on the order; and performing a vector quantization on a second set difference by using the first set index and the second set linear predictive transform coefficient, when the second set linear predictive coefficient is generated. | 04-18-2013 |
20130151263 | METHOD AND DEVICE FOR PROCESSING AUDIO SIGNALS - The present invention provides a method for processing audio signals, and the method comprises the steps of: receiving input audio signals corresponding to a plurality of spectral coefficients; obtaining location information that indicates a location of a particular spectral coefficient among said spectral coefficients, on the basis of energy of said input signals: generating a shape vector by using said location information and said spectral coefficients; determining a codebook index by searching for a codebook corresponding to said shape vector; and transmitting said codebook index and said location information, wherein said shape vector is generated by using a part which is selected from said spectral coefficients, and said selected part is selected on the basis of said location information. | 06-13-2013 |
Changheon Lee, Goyang-Si KR
Patent application number | Description | Published |
---|---|---|
20130305174 | INPUT ERROR REMEDIATION - Technologies are generally described for an input error remediation scheme for an electronic device with a touch screen display. In some examples, a method performed under control of an electronic device with a touch screen display may include displaying a first page on the touch screen display, detecting a first input from a user of the electronic device, detecting a second input from the user; determining whether the first input is inadvertent based at least in part on the second input, and displaying a second page on the touch screen display, if the first input is determined to be inadvertent. | 11-14-2013 |