Wan Gyu
Wan Gyu Kang, Gyeonggi-Do KR
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20150289341 | Light Emitting Device Driving Apparatus and Illumination System Including the Same - Disclosed is a light emitting device driving apparatus for controlling a light emitting unit including series-connected light emitting device arrays. The apparatus includes a rectifier for rectifying an AC signal, and outputting a ripple current signal according to a result of the rectification, a current adjuster for outputting a selection voltage, and a sequential driving controller connected to channel lines connected to respective output terminals of the light emitting device arrays, the sequential driving controller selectively establishing current paths between the light emitting device arrays and the channel lines, based on a voltage level of the ripple current signal, and adjusting an intensity of current flowing through the channel lines, based on the selection voltage. The current adjuster performs analog-digital conversion upon a setting voltage, generates a digital value according to a result of the analog-digital conversion, and outputs one of a plurality of selective voltages, based on the digital value. | 10-08-2015 |
Wan Gyu Kim, Seoul KR
Patent application number | Description | Published |
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20100303244 | METHOD AND MOBILE DEVICE FOR DELIVERING AUDIO DATA OVER SHORT RANGE WIRELESS COMMUNICAITON CHANNELS - A method and mobile device for delivering individual audio streams multiplexed in an audio data to at least one audio device through corresponding radio channels. The method includes establishing a communication channel with each of at least one audio device, receiving multiplexed audio data, extracting individual audio streams from the multiplexed audio data, allocating at least one of the individual audio streams to one or more communication channels, and transmitting the at least one of the individual audio streams to one or more of the at least one audio device through respective one or more communication channels. | 12-02-2010 |
20110117851 | METHOD AND APPARATUS FOR REMOTE CONTROLLING BLUETOOTH DEVICE - An apparatus and a method for remote control of a Bluetooth device are provided. The method includes establishing a Bluetooth connection with a Bluetooth headset, generating virtual media stream data during execution of an application, establishing a virtual media streaming connection with the Bluetooth headset based on the generated virtual media stream data, recognizing a control signal received from the Bluetooth headset as a control event after the establishing of the virtual media streaming connection, and controlling a function of the executed application according to the control event. | 05-19-2011 |
Wan Gyu Kim, Gyeonggi-Do KR
Patent application number | Description | Published |
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20150295613 | METHOD AND ELECTRONIC DEVICE FOR CONTROLLING RADIATION POWER - A radiation power controlling method includes: detecting a user input for setting a radiation power; determining a radiation environment of an antenna on the basis of at least the detected user input; and setting the radiation power of the antenna according to the determined radiation environment. | 10-15-2015 |