This inventor holds 1 USPTO granted patent. Top assignee: Quantum Corporation. Active years: 1995.
Company Filing History:
Years Active: 1995
Title: Toai A Doan: Innovator in Phase Locked Loop Technology
Introduction
Toai A Doan is a notable inventor based in West Hills, California. He has made significant contributions to the field of electronics, particularly in the development of phase locked loop technology. His innovative approach has led to the creation of a unique patent that addresses critical challenges in signal processing.
Latest Patents
Toai A Doan holds a patent titled "Averaging Zero Phase Start for Phase Locked Loops." This invention introduces an average zero phase start circuit designed to detect and correct the average phase difference between a data signal and a voltage-controlled oscillator (VCO) clock signal during the initial phase-lock acquisition. The circuit utilizes a data comparator to divide the data stream into odd and even segments, along with pulse position detectors to measure the phase differences. A ramp generator is employed to produce a voltage that corresponds to the sum of these detected phase differences. After taking four measurements, the VCO is halted, and a secondary current source discharges the capacitor at an accelerated rate. A ramp comparator signals when the capacitor voltage aligns with a reference voltage, allowing the VCO to restart in the desired phase alignment with the data signal.
Career Highlights
Toai A Doan is associated with Quantum Corporation, where he has applied his expertise in electronics and signal processing. His work has been instrumental in advancing the capabilities of phase locked loops, which are essential in various communication and electronic systems.
Collaborations
Toai has collaborated with notable colleagues, including Russell W Brown and Edward Lloyd Henderson. Their combined efforts have contributed to the innovative advancements in the technologies they work on.
Conclusion
Toai A Doan's contributions to phase locked loop technology exemplify the impact of innovative thinking in electronics. His patent reflects a deep understanding of signal processing challenges and offers practical solutions that enhance system performance.