Ruo-Hsuan Gao

Title: Ruo-Hsuan Gao: Semiconductor Circuit Inventor

Introduction

Ruo-Hsuan Gao is an inventor based in Hsinchu, Taiwan, whose work focuses on semiconductor circuit design and calibration. He is associated with Realtek Semiconductor Inc. and is credited with 2 patents.

Latest Patents

Gao’s listed patents address radio-frequency signal reception and resistor-capacitor calibration.

“Radio Frequency Receiving Circuit and Chip Comprising the Same” describes a circuit that amplifies an input signal, mixes it with a local oscillation signal, and uses a dividing circuit to form a frequency-specific dividing loop when driven. The patent also describes a chip whose main circuit drives the dividing circuit when a second input signal is determined to contain a signal at the preset frequency.

“Resistor-Capacitor Calibration Method and Resistor-Capacitor Calibration Circuit” presents a calibration process for achieving a specified RC product. The method uses clock-period ratios to guide adjustments to current sources, resistance, capacitance, or an adjustment factor. It also describes charging a capacitor and comparing voltages to determine whether calibration is complete, with further component adjustments made when needed.

Career Highlights

Gao’s listed patent work reflects contributions to radio-frequency receiving circuitry and precision calibration techniques. Both inventions concern circuit behavior that can support the operation and tuning of semiconductor devices.

Collaborations

Gao is associated with Realtek Semiconductor Inc. His listed coworkers include Chia-jun Chang and Chia-Yi Lee.

Conclusion

Ruo-Hsuan Gao’s two listed patents highlight his work on radio-frequency reception and RC calibration, connecting signal-processing design with practical circuit-tuning methods.