Company Filing History:
1 out of 2 
8 out of 832,812 Years Active: 2014
Title: Phuong Thu-Minh Huynh: Innovator in Quadrature Bandpass Sampling Technology
Introduction
Phuong Thu-Minh Huynh is a notable inventor based in Fairfax Station, VA (US). He has made significant contributions to the field of RF signal processing, holding a total of 9 patents. His work primarily focuses on enhancing the efficiency and accuracy of quadrature bandpass sampling receivers.
Latest Patents
One of his latest patents is titled "Rake receiving in a quadrature bandpass-sampling receiver." This invention provides an apparatus and method for rake receiving in a quadrature bandpass-sampling RF receiver. The receiver bandpass-samples and quantizes an RF signal to produce an in-phase bi-level digital signal and a quadrature bi-level digital signal. Both signals are based on their respective clocks, which are equal to the RF signal carrier frequency. The quadrature clock is designed to be ninety degrees out of phase with the in-phase clock. The delayed bits in both digital signal groups are combined to achieve diversity gain.
Another significant patent is "Apparatus and method for calibrating the I/Q mismatch in a quadrature bandpass sampling receiver." This calibration technique compensates for phase errors between the in-phase and quadrature sampling clocks. A low-frequency test tone is injected and up-converted to the RF frequency, which is then added to the input of the quadrature bandpass sampling delta-sigma analog-to-digital demodulator. The resulting in-phase and quadrature signals are filtered and multiplied to generate a phase error signal, which is integrated to create a phase shift control signal for correcting the phase error.
Career Highlights
Throughout his career, Phuong Thu-Minh Huynh has worked with various companies, contributing his expertise in RF technology and signal processing. His innovative approaches have led to advancements in the field, making him a respected figure among his peers.
Collaborations
Due to space constraints, the details of his collaborations will not be included.
Conclusion
Phuong Thu-Minh Huynh's contributions to quadrature bandpass sampling technology have significantly impacted the field of RF signal processing. His innovative patents demonstrate his commitment to advancing technology and improving receiver performance.