Issued Patents All Time
Showing 25 most recent of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12308842 | Frequency calibration circuit and method for calibrating oscillation frequency of controllable oscillator | Chien-Wei Chen, Kairen Fong, Chao-Ching Hung | 2025-05-20 |
| 12113480 | Crystal oscillator and method for performing startup of crystal oscillator | Chien-Wei Chen, Chao-Ching Hung | 2024-10-08 |
| 11722139 | Frequency-locked loop and method for correcting oscillation frequency of output signal of frequency-locked loop | Chien-Wei Chen, Chao-Ching Hung | 2023-08-08 |
| 11677433 | Wireless system having local oscillator signal derived from reference clock output of active oscillator that has no electromechanical resonator | Jui-Lin Hsu, Chao-Ching Hung, Tzu-Chin Lin, Wei-Hsiu Hsu, Jing-Hong Conan Zhan +1 more | 2023-06-13 |
| 11606063 | Crystal oscillator and phase noise reduction method thereof | Chien-Wei Chen, Keng-Meng Chang, Yao-Chi Wang | 2023-03-14 |
| 11509315 | Fractional-N phase-locked loop and sliced charge pump control method thereof | Po-Chun Huang | 2022-11-22 |
| 11387813 | Frequency multiplier and delay-reused duty cycle calibration method thereof | Hsiu-Hsien Ting, Po-Chun Huang | 2022-07-12 |
| 11342884 | Crystal oscillator and phase noise reduction method thereof | Chien-Wei Chen, Keng-Meng Chang, Yao-Chi Wang | 2022-05-24 |
| 11183971 | Method for startup of crystal oscillator with aid of external clock injection, associated crystal oscillator and monitoring circuit therein | Chien-Wei Chen, Po-Chun Huang | 2021-11-23 |
| 11139818 | Fast-locking phase-locked loop and associated fast-locking method thereof | Po-Chun Huang, Chao-Ching Hung | 2021-10-05 |
| 10879798 | Charge pump circuit with capacitor swapping technique and associated method | Chao-Ching Hung, Kai-Ren Fong | 2020-12-29 |
| 10809757 | Clock buffer having low power, low noise and low spur | Chien-Wei Chen | 2020-10-20 |
| 10778145 | Magnetically pumped voltage controlled oscillator | Po-Chun Huang, Ang-Sheng Lin, Wei-Hao Chiu | 2020-09-15 |
| 10483845 | Charge pump having level-shifting mechanism | Chih-Hsien Shen, Chao-Ching Hung, Po-Chun Huang | 2019-11-19 |
| 10374588 | Quadrature clock generating mechanism of communication system transmitter | Po-Chun Huang, Chao-Ching Hung, Pang-Ning Chen | 2019-08-06 |
| 10141921 | Signal generator using multi-sampling and edge combining and associated signal generating method | Pang-Ning Chen | 2018-11-27 |
| 10020777 | Voltage controlled oscillator and control method thereof | Chao-Ching Hung, Po-Chun Huang | 2018-07-10 |
| 9853648 | Compensation apparatus and inductor-based apparatus | Richard Y. Su, Chih-Hsien Shen, Chao-Ching Hung, Yi-Chien Tsai | 2017-12-26 |
| 9755653 | Phase detector | Pang-Ning Chen, Pi-An Wu | 2017-09-05 |
| 9685966 | Fractional dividing module and related calibration method | Pang-Ning Chen, Jian Ding | 2017-06-20 |
| 9680454 | Frequency tripler and local oscillator generator | Tzu-Chan Chueh | 2017-06-13 |
| 9467156 | Frequency synthesizing module and related frequency gain determining method | Chao-Ching Hung | 2016-10-11 |
| 9160353 | Phase frequency detector and charge pump for phase lock loop fast-locking | Jing-Hong Conan Zhan | 2015-10-13 |
| 8878582 | Apparatus and method for duty cycle calibration | Chih-Hsien Shen, Jing-Hong Conan Zhan | 2014-11-04 |
| 8766684 | Charge pump, phase frequency detector and charge pump methods | Yi-Hsien Cho, Jing-Hong Conan Zhan | 2014-07-01 |