Seong-Ryong Ryu

Title: Seong-Ryong Ryu: Innovator in Oscillator Technology

Introduction

Seong-Ryong Ryu is a prominent inventor based in Pleasanton, CA (US). He has made significant contributions to the field of oscillator technology, holding a total of 4 patents. His work focuses on developing innovative solutions that enhance the performance and efficiency of electronic devices.

Latest Patents

Among his latest patents is the "Pullable Clock Oscillator." This invention features a clock oscillator that includes a pullable BAW oscillator designed to generate an output signal with a target frequency. The BAW oscillator utilizes a BAW resonator and voltage-controlled variable load capacitance, which responds to a capacitance control signal to provide a selectable load capacitance. An oscillator driver, such as a differential negative gm transconductance amplifier, is coupled to the BAW oscillator to deliver an oscillation drive signal. This configuration allows the BAW oscillator to generate an output signal with a frequency based on the selectable load capacitance. Additionally, the oscillator driver can incorporate a bandpass filter network with a resonance frequency that aligns closely with the target frequency.

Another notable patent is the "Low-Power Low-Phase-Noise Oscillator." This invention describes a low-power, low-phase-noise (LPLPN) oscillator that includes a resonator load, an amplifier stage, and a loop gain control circuit. The resonator load is designed to resonate at a primary resonant frequency. The amplifier stage is connected to the resonator load to develop a loop gain that peaks at this primary resonant frequency. The loop gain control circuit regulates the loop gain, enabling the amplifier stage to generate an oscillation signal at the primary resonant frequency while suppressing noise signals at parasitic parallel resonant frequencies.

Career Highlights

Seong-Ryong Ryu is currently employed at Texas Instruments Corporation, where he continues to innovate and contribute to advancements in oscillator technology. His expertise and dedication to research have positioned him as a key figure in his field.

Collaborations

Throughout his career, Ryu has collaborated with notable colleagues, including Ali Kiaei and Ben-yong Zhang. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and the development of cutting-edge technologies.

Conclusion

Seong-Ryong Ryu's contributions to oscillator technology through his innovative