Company Filing History:
Years Active: 2012-2013
Title: Innovations of Hsin-Hsiang Liu in Bluetooth Technology
Introduction
Hsin-Hsiang Liu is a prominent inventor based in Torrance, California, contributing significantly to advancements in Bluetooth technology. With three patents to his name, Liu has focused on improving methods and apparatus for signal acquisition and reference tracking in Bluetooth receivers.
Latest Patents
Liu's latest patents include a "Simplified acquisition apparatus and method for a Bluetooth receiver." This invention introduces an acquisition scheme tailored for receiving both Bluetooth basic data rate (BDR) and enhanced data rate (EDR) packets. It encompasses an acquisition apparatus featuring a phase differentiator, multiple basic building blocks, a series of 1-bit switches, and a correlation computation equation. The design emphasizes an efficient acquisition circuit implementation that utilizes 1-bit correlator hardware shared by access code and EDR synchronization sequence correlation computations.
Another notable patent by Liu is the "Method and apparatus for phase reference tracking of digital phase-modulated signals in the receiver." This invention presents a robust framework for maintaining a phase reference in the phase-domain for digital phase-modulated signals. The approach delineates both first-order and higher-order phase-locked loops (PLLs) for effectively tracking frequency errors, including time-varying frequency errors, between the transmitter and the receiver. This innovative method is applicable to various phase-modulated signals like PSK, DPSK, π/4-DPSK, and Continuous Phase Modulation (CPM), achieving performance levels close to coherent detection.
Career Highlights
Hsin-Hsiang Liu has made significant strides in the field of telecommunications through his work at ISSC Technologies Corporation. His inventive contributions have paved the way for enhanced Bluetooth communication technologies, reflecting his commitment to innovation in the tech industry.
Collaborations
Throughout his career, Liu has collaborated with talented professionals such as Pansop Kim and Jeng-Hong Chen. Their combined expertise has fostered a collaborative environment that drives technological innovation and leads to notable advancements in signal processing and acquisition technology.
Conclusion
Hsin-Hsiang Liu's contributions to the field of Bluetooth technology showcase the important role of inventors in driving innovation. His work not only enhances the functionality of Bluetooth devices but also improves user experiences. As Liu continues to innovate, the impact of his inventions will undoubtedly influence future developments in wireless communication technologies.