This inventor holds 4 USPTO granted patents and 1 EPO patent. Top assignee: Mediatek Corporation. Active years: 2017-2022.
Location History:
- Hsinchu County, TW (2017 - 2019)
- Hsinchu, TW (2022)
Company Filing History:
Years Active: 2017-2022
Title: Innovations of Tzu-Chan Chueh in Phase-Locked Loop Circuits
Introduction
Tzu-Chan Chueh is a notable inventor based in Hsinchu, Taiwan. He has made significant contributions to the field of electronics, particularly in the development of phase-locked loop (PLL) circuits. With a total of 4 patents to his name, Chueh's work has advanced the technology used in various electronic applications.
Latest Patents
Chueh's latest patents include innovative methods and circuits that enhance the performance of PLL systems. One of his patents describes a phase-locked loop circuit that incorporates a linear voltage-domain time-to-digital converter. This method utilizes a phase detector to generate a charging current signal based on an input frequency signal and a feedback signal. The circuit limits the voltage level corresponding to the charging current signal to produce a digital output, which is then processed through a low-pass filter. The output of this filter generates a digital controlled oscillator (DCO) frequency signal, which is crucial for the feedback mechanism.
Another significant patent focuses on a phase-locked loop circuit and a digital-to-time converter error cancellation method. This invention includes a first delay control circuit (DTC) that receives a delay control signal to adjust either a reference signal or a feedback signal. The circuit features selection mechanisms that determine the output paths for the reference and feedback signals, enhancing the overall efficiency of the PLL system.
Career Highlights
Tzu-Chan Chueh is currently employed at MediaTek Corporation, a leading global semiconductor company. His work at MediaTek has allowed him to collaborate with other talented engineers and inventors, contributing to the advancement of technology in the semiconductor industry.
Collaborations
Chueh has worked alongside notable colleagues such as Ang-Sheng Lin and Wei-Hao Chiu. Their collaborative efforts have led to the development of innovative solutions in the field of electronics.
Conclusion
Tzu-Chan Chueh's contributions to phase-locked loop circuits demonstrate his expertise and innovative spirit in the field of electronics. His patents reflect a commitment to advancing technology and improving electronic systems.