Inventors list |
Assignees list |
Classification tree browser |
Top 100 Inventors |
Top 100 Assignees |
Aum
Jae Goon Aum, Yongin KR
| Patent application number | Description | Published |
|---|---|---|
| 20090168908 | APPARATUS AND METHOD FOR ESTIMATING DELAY SPREAD OF MULTI-PATH FADING CHANNEL IN OFDM SYSTEM - Provided is an apparatus for estimating a delay spread of a multi-path fading channel in an Orthogonal Frequency Division Multiplexing (OFDM) system. The apparatus is applied to an OFDM receiver including a channel equalization unit compensating channel distortion by estimating channel distortion at pilot locations with respect to output signals of an FFT unit. | 07-02-2009 |
| 20100158144 | SAMPLING FREQUENCY OFFSET ESTIMATION APPARATUS AND METHOD OF OFDM SYSTEM - A sampling frequency offset estimation apparatus of an orthogonal frequency division multiplexing (OFDM) system according to an aspect of the invention may include: a first differential operation unit performing complex conjugate multiplication of scattered pilots of complex symbols subjected to a fast Fourier transform (FFT) in an OFDM receiver; an interpolation unit repeating an operation of obtaining a median complex symbol between two consecutive symbols among complex symbols having first phase difference information from the first differential operation unit by a predetermined number; a second differential operation unit performing complex conjugate multiplication of two consecutive median complex symbols among median complex symbols from the interpolation unit; and a sampling frequency offset estimation unit estimating sampling frequency offset using complex symbols having second phase difference information from the second differential operation unit. | 06-24-2010 |
Jae Goon Aum, Suwon KR
| Patent application number | Description | Published |
|---|---|---|
| 20110133882 | Apparatus for detecting coordinates of an event within interest region, display device, security device and electronic blackboard including the same - There is provided an apparatus for detecting the coordinates of an event within an interest region including: a light source limiting an interest region; at least two light receiving units receiving reflected light of an event within the interest region; a reflector refracting the reflected light received in the light receiving units; and one image sensor on which the reflected light refracted on the reflector is image-formed, wherein the apparatus for detecting coordinates is configured of one module. | 06-09-2011 |
Jae-Hack Aum, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20110132774 | STRIP HAVING TEMPERATURE COMPENSATING FUNCTION AND METHOD OF MEASURING BLOOD GLUCOSE USING THE SAME - Disclosed is a strip having a temperature compensating function, in which the temperature of the strip for blood collection for use in a blood glucose monitor is sensed and used as an error compensation value upon measuring blood glucose, thereby obtaining a very accurate blood glucose measurement regardless of ambient temperature and humidity and which includes first and second electrodes formed adjacent to each other to measure blood glucose, a connector inserted into a blood glucose monitor so as to be electrically connected thereto and one surface of which has upper terminals respectively connected to the first and second electrodes, a rectangular substrate including a chemically reactive member applied on or attached to the first and second electrodes, an upper cover covering an upper surface of the substrate and including a cut part to expose portions of the first and second electrodes, and a temperature sensor attached to the substrate to sense the temperature of the strip. A method of measuring blood glucose using the strip is also provided. | 06-09-2011 |
Min-Yong Aum, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20100110310 | MOBILE TERMINAL HAVING PROJECTOR AND METHOD OF CONTROLLING DISPLAY UNIT IN THE MOBILE TERMINAL - A mobile terminal having a projector and a method for controlling a display unit in of the mobile terminal are provided. The method includes outputting, if a presentation application is selected, a screen image for performing the selected presentation application through the display unit and the projector, turning off power supplied to an entire area of the display unit, and performing, if a touch is detected through the touch screen, a function according to the detected touch in the selected presentation application. | 05-06-2010 |
| 20100185887 | APPARATUS AND METHOD FOR SAVING POWER IN PORTABLE TERMINAL USING ETHERNET - A method for saving power in a portable terminal includes determining whether an Ethernet cable is communicatively connected to an Ethernet modem; and when the Ethernet cable is not in communication with the Ethernet modem, intermittently supplying power to the Ethernet modem. | 07-22-2010 |