Wenbo Liu

Title: Innovations of Wenbo Liu in Communication Technology

Introduction

Wenbo Liu is a prominent inventor based in Cupertino, CA, known for his significant contributions to communication technology. With a total of 8 patents to his name, Liu has made remarkable advancements in the field, particularly in the area of phase detection and data sampling.

Latest Patents

One of Liu's latest patents is the "Phase detector circuit for multi-level signaling." This invention focuses on a phase detector circuit designed for use with a multi-level signaling communication protocol on a serial communication link. The circuit employs multiple phase and logic circuits to detect data state changes between adjacent voltage levels corresponding to different data states. It generates early and late signals using these detected changes, while also statistically filtering data state transitions to improve phase locking and reduce clock jitter.

Another notable patent is the "Serial data receiver with sampling clock skew compensation." This apparatus includes a receiver buffer, a phase compensation circuit, a data sampler circuit, and an error sampler circuit. The receiver buffer generates an equalized signal using an input signal received via a channel. The phase compensation circuit replaces the equalized signal with a reference signal during a training mode. The data sampler circuit samples the reference signal to generate data samples, while the error sampler circuit generates error samples. The phase compensation circuit adjusts the phase difference between the data clock signal and the error clock signal using these samples.

Career Highlights

Wenbo Liu is currently employed at Apple Inc., where he continues to innovate and develop cutting-edge technologies. His work has significantly impacted the efficiency and reliability of communication systems.

Collaborations

Liu has collaborated with notable colleagues, including Sanjeev K Maheshwari and Ming-Shuan Chen, contributing to various projects that enhance communication technology.

Conclusion

Wenbo Liu's innovative patents and contributions to communication technology demonstrate his expertise and commitment to advancing the field. His work at Apple Inc. continues to influence the development of efficient communication systems.