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Hee-Don
Hee-Don Gha, Gyeonggi-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20100149962 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING UPLINK PILOT IN FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM - Method and apparatus for transmitting/receiving an uplink pilot used for channel estimation and measurement of an uplink in an FDMA system. Pilot symbols are transmitted with different frequency mapping patterns in first and second pilot symbol intervals of one time slot interval including data symbol intervals and the inconsecutive first and second pilot symbol intervals which have a shorter length than the data symbol intervals. As a result, interpolation of a frequency domain during channel estimation is not necessary, and can correctly obtain channel-estimated values of a frequency at which data is transmitted, in a fast time-varying channel environment. | 06-17-2010 |
Hee-Don Hwang, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20110201168 | METHODS OF MANUFACTURING SEMICONDUCTOR DEVICES HAVING A RECESSED-CHANNEL - A method according to example embodiments includes forming isolation regions in a substrate, the isolation regions defining active regions. Desired regions of the active regions and the isolation regions are removed, thereby forming recess channel trenches to a desired depth. The recess channel trenches are fog to have a first region in contact with the active regions and a second region in contact with the isolation regions. A width of a bottom surface of the recess channel trenches is less than that of a top surface thereof. The active regions and the isolation regions are annealed to uplift the bottom surface of the recess channel trenches. An area of the bottom surface of the first region is increased. A depth of the bottom surface of the first region is reduced. | 08-18-2011 |
Hee-Don Jeong, Pohang KR
| Patent application number | Description | Published |
|---|---|---|
| 20100188510 | LANDMARK FOR POSITION DETERMINATION OF MOBILE ROBOT AND APPARATUS AND METHOD USING IT - There are provided a landmark for recognizing a position of a mobile robot moving in an indoor space and an apparatus and method for recognizing the position of the mobile robot by using the landmark. The landmark includes a position recognition part formed of a mark in any position and at least two marks on an X axis and Y axis centered on the mark and further includes an area recognition part formed of a combination of a plurality of marks to distinguish an individual landmark from others. The apparatus may obtain an image of the landmark by an infrared camera, detect the marks forming the landmark, and detect precise position and area information of the mobile robot from the marks. | 07-29-2010 |
Hee-Don Jeong, Hadong-Gun KR
| Patent application number | Description | Published |
|---|---|---|
| 20090315100 | METHOD OF MANUFACTURING SEMICONDUCTUR DEVICE - Disclosed is a method of manufacturing a semiconductor device. The method includes forming an oxide-nitride-oxide (ONO) layer over a semiconductor substrate, and forming a recess over the semiconductor substrate by etching the ONO layer, forming a vertical structure pattern being higher than the ONO layer over the recess, sequentially forming a spacer oxide film and a first gate poly over the side wall of the vertical structure pattern, and forming a nitride film spacer at a partial region of the side wall of the first gate poly, removing the nitride film spacer, and forming a second gate poly in a spacer shape over the side wall of the first gate poly, and forming a first split gate and a second split gate, symmetrically divided from each other, by removing the vertical structure pattern. | 12-24-2009 |
Hee-Don Lee, Gyeonggi-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20110264016 | WEARABLE ROBOT FOR ASSISTING MUSCULAR STRENGTH OF LOWER EXTREMITY - A wearable robot for assisting muscular strength of the lower extremity of a user: The wearable robot can be worn on user's legs and includes a central securing part, a hip joint part hingably coupled to either side of a lower end of the central securing part, a femur part fastened to the hip joint part and having rigidity, a knee part including an outer frame and a knee assistant, and a drive unit fastened to one of the hip joint part and the knee joint part to allow operation of the joint part. The outer frame includes an upper side outer frame fastened to a lower end of the femur part and a lower side outer frame fastened to the upper side outer frame by a rotatable knee joint part Both the upper side outer frame and the lower side outer frame are fastened to the knee assistant worn by the user. | 10-27-2011 |