Hung-Chih Liu

Title: Innovations of Inventor Hung-Chih Liu

Introduction

Hung-Chih Liu is a prominent inventor based in Taipei, Taiwan. He has made significant contributions to the field of wireless communication technology. With a total of 3 patents, Liu's work focuses on enhancing the efficiency and effectiveness of communication systems.

Latest Patents

One of Liu's latest patents is a baseband system for a wireless receiver and baseband signal processing method. This innovative system includes an estimation and compensation circuit that estimates frequency-independent non-ideal effects based on an original IQ signal pair. It compensates the original IQ signal pair based on the estimation result to obtain a compensated IQ signal pair. Additionally, a channel estimation and equalization circuit performs channel estimation and equalization based on the compensated IQ signal pair, resulting in an equalized IQ signal pair. A tracking and compensation circuit then tracks residual quantities of the non-ideal effects and compensates the equalized IQ signal pair to produce an output IQ signal pair.

Another notable patent is a communication system that comprises a baseband circuit, a transmitting end circuit, and a receiving end circuit. The transmitting end circuit features a digital analog conversion circuit and a transmitting end filtering circuit. The receiving end circuit includes a receiving end amplifying circuit, a receiving end filtering circuit, and an analog digital conversion circuit. This system allows for the transmission of data signals through various circuits, enabling the baseband circuit to obtain compensation parameters for calibration.

Career Highlights

Hung-Chih Liu has worked at esteemed institutions such as National Yang Ming Chiao Tung University and IBM. His experience in these organizations has contributed to his expertise in communication technologies and patent development.

Collaborations

Liu has collaborated with notable colleagues, including Zheng-Chun Huang and Wei-Che Lee. Their joint efforts have further advanced the field of wireless communication.

Conclusion

Hung-Chih Liu's innovative patents and career achievements highlight his significant impact on wireless communication technology. His work continues to influence advancements in the field, showcasing the importance of innovation in modern communication systems.