Location History:
- Pan-Chiao, TW (2007)
- Taipei Hsien, TW (2007 - 2008)
Company Filing History:
Years Active: 2007-2008
Title: Yung-Chih Li: Innovator in Optical Technology
Introduction
Yung-Chih Li is a notable inventor based in Taipei Hsien, Taiwan. He has made significant contributions to the field of optical technology, holding a total of four patents. His work primarily focuses on laser power control and optical storage systems.
Latest Patents
One of his latest patents is a "Laser power control unit and method for performing auto power control." This invention provides a laser power control unit designed to manage the laser power of an optical pick-up unit (OPU). The unit includes at least one analog-to-digital converter (ADC) that is electrically connected to the OPU, allowing it to convert a front photodiode output signal into a digital feedback signal. Additionally, it features a digital control circuit that generates a power control signal to regulate the laser power of the OPU. This circuit also incorporates a compensation mechanism to adjust the power control signal based on the difference between the digital feedback signal and a target feedback signal.
Another significant patent is the "Method and device for canceling a land-groove offset component of a focusing error signal in an optical storage system." This device consists of two circuits and an adder. The first circuit processes a radio frequency ripple signal to produce a processed signal, while the second circuit processes a tracking error signal. The adder combines these signals to create a compensative land-groove offset component, which is then used to enhance the focusing device's performance in optical storage systems.
Career Highlights
Yung-Chih Li has worked with prominent companies in the technology sector, including MediaTek Corporation and MediaTek Incorporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in optical technology.
Collaborations
Throughout his career, Yung-Chih Li has collaborated with talented individuals such as Hsueh-Kun Liao and Ching-Chuan Hsu. These partnerships have contributed to the advancement of his inventions and the successful implementation of his patents.
Conclusion
Yung-Chih Li is a distinguished inventor whose work in optical technology has led to several important patents. His contributions continue to influence the field and demonstrate the impact of innovation in technology.
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