Chao-Ching Hung

Title: Innovations by Chao-Ching Hung: Pioneering Technologies in Crystal Oscillators

Introduction: Chao-Ching Hung is an accomplished inventor based in Hsinchu, Taiwan, recognized for his significant contributions to the field of electronics and signal processing. With a total of 12 patents, Hung's work primarily focuses on advancements in crystal oscillators and frequency-locked loops, enhancing their performance and reliability.

Latest Patents: His latest innovations include a crystal oscillator and a method for performing startup of the crystal oscillator. This invention describes a crystal oscillator (XO) that integrates a core circuit, an auxiliary oscillator, and a frequency detection circuit, which utilizes a resistive circuit to improve startup performance. The method involves accurately calibrating the auxiliary oscillator and the resistive circuit based on detection voltages, ensuring a rapid and efficient startup of the XO core circuit.

Another notable patent is the frequency-locked loop (FLL) and its method for correcting the oscillation frequency of the output signal. This system encompasses a switched capacitor circuit and two sets of resistors, allowing for real-time adjustments based on the determination results. The control circuit plays a crucial role in fine-tuning the oscillation frequency, achieving greater precision in signal processing.

Career Highlights: Chao-Ching Hung is currently employed at MediaTek Corporation, a leading global semiconductor company, where he continues to drive innovations in electronic components and systems. His expertise in crystal oscillator technology positions him as an influential figure in the industry, contributing to advancements that are vital for various applications in modern electronics.

Collaborations: Throughout his career, Hung has collaborated with esteemed colleagues such as Yu-Li Hsueh and Po-Chun Huang. Their partnership has fostered an environment of creativity and technical excellence, further enhancing the scope and impact of their collective work.

Conclusion: Chao-Ching Hung's inventive spirit and commitment to advancing technology are evident through his numerous patents and contributions to the field. His work on crystal oscillators and frequency-locked loops reflects a deep understanding of electronic systems, promising significant advancements for the future of technology. As he continues to innovate at MediaTek Corporation, the industry anticipates further groundbreaking solutions from this talented inventor.