Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7725088 | Fast mode switching frequency synthesizing apparatus and method for operating in low power consumption | Choong-yul Cha, Hoon Kim | 2010-05-25 |
| 7656238 | Frequency synthesizing apparatus and method having injection-locked quadrature VCO in RF transceiver | Jeong Wook Koh, Hoon Kim | 2010-02-02 |
| 7548124 | System and method for self calibrating voltage-controlled oscillator | Hyun Soo Chae, Jung Eun Lee, Hoon Kim | 2009-06-16 |
| 7536163 | Apparatus and method generating multi RF tone signals in UWB communication system | Min Suk Kang, Tuan Phan, Eun-chul Park, Chang-wam Kim, Sang-Gug Lee | 2009-05-19 |
| 7420429 | Source coupled differential complementary colpitts oscillator | Choong-yul Cha, Hoon Kim | 2008-09-02 |
| 7397317 | Quadrature signal generator for tuning phases of all of four generated quadrature signals | Eun-chul Park, Choong-yul Cha | 2008-07-08 |
| 7378908 | Variable gain differential amplifier, and variable degeneration impedance control device and method for use in the same | Hoon Kim, Jung Eun Lee | 2008-05-27 |
| 7345551 | Frequency synthesizer for mixing reference frequencies | Choong-yul Cha, Hoon Kim | 2008-03-18 |
| 7145407 | Radio frequency voltage controlled oscillator | Sang-yoon Jeon, Heung-bae Lee | 2006-12-05 |
| 6865067 | Structure of radio frequency variable capacitor and method of manufacturing the same | Sang-yoon Jeon | 2005-03-08 |