Yi-Hsien Cho

Title: Yi-Hsien Cho: Innovator in Clock and Data Recovery Circuits

Introduction

Yi-Hsien Cho is a prominent inventor based in Hsinchu County, Taiwan. He has made significant contributions to the field of electronics, particularly in the development of clock and data recovery circuits. With a total of 15 patents to his name, Cho has established himself as a key figure in innovation.

Latest Patents

Among his latest inventions, Cho has developed a clock and data recovery circuit with a spread spectrum clocking synthesizer. This invention provides a circuitry that includes a Phase-Locked Loop (PLL) and a Clock Data Recovery (CDR) circuit. The CDR circuit features a phase detector, a digital loop filter, and two phase interpolators. The PLL is designed to generate a first clock signal with spread spectrum clock (SSC) modulation and a control signal. The phase detector generates a detection result based on an input signal and an output clock signal, both of which are modulated with SSC. The digital loop filter processes the detection result to produce a filtered signal, which is then used by the phase interpolators to generate the output clock signal.

Another notable patent by Cho is also focused on a clock and data recovery circuit with a spread spectrum clocking synthesizer. This invention includes a PLL and a CDR circuit that consists of a phase detector, a loop filter, an SSC demodulator, a control code generator, and a phase interpolator. The PLL generates a clock signal with SSC modulation and a SSC direction signal. The phase detector compares the phases of the input signal and the output clock signal to produce a detection result. The loop filter processes this result to create a filtered signal, which is utilized by the control code generator to manage the phase interpolator in generating the output clock signal.

Career Highlights

Yi-Hsien Cho has worked with notable companies in the technology sector, including MediaTek Corporation and Alpha Networks Inc. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in electronics.

Collaborations

Throughout his career, Cho has collaborated with esteemed colleagues such as Robert Bogdan Staszewski and Yu-Li Hsueh. These partnerships have fostered an environment of creativity and innovation, leading to the development of advanced technologies.

Conclusion

Yi-Hsien