Xuefeng Tang

Title: Xuefeng Tang: Innovator in Coherent Transmitter Technologies

Introduction

Xuefeng Tang is a distinguished inventor based in Kanata, Canada, holding an impressive portfolio of 18 patents. His innovative work primarily focuses on advancements in coherent transmitter technologies, which have significant implications for telecommunications and data transmission efficiency.

Latest Patents

Xuefeng Tang's latest contributions to the field include two notable patents. The first is titled "Self-calibrating device and method for in-phase and quadrature time skew and conjugation in a coherent transmitter." This invention outlines methods and devices aimed at compensating for time skew and phase conjugation in coherent transmitters and transceivers. It utilizes a pilot tone combined with a digital data signal to detect relative power differences across two frequency bands, enabling precise calculation of the time skew between I and Q modulation channels. A digital signal processing (DSP) unit applies the necessary adjustments to compensate for any identified time skew, while also accounting for phase conjugation by modifying the polarity of the data signal.

The second patent focuses on "Systems and methods for frequency domain local oscillator frequency offset compensation." This inventive method compensates for local oscillator frequency offset (LOFO) in received signals using a combination of integer and fractional Fast Fourier Transform (FFT) techniques. This dual approach allows for effective fine-tuning of the signal and improves the accuracy of data transmission in complex systems.

Career Highlights

Throughout his career, Xuefeng Tang has made significant strides in the telecommunications industry. He has held positions at renowned companies such as Huawei Technologies Co., Limited and Ciena Corporation. His work in these organizations has fostered innovation in coherent transmission and signal processing technologies.

Collaborations

Xuefeng has collaborated with several notable colleagues, including Zhiping Jiang and Zhuhong Zhang. These partnerships have enabled him to expand his research and development capabilities, which have led to the successful creation of his numerous patents.

Conclusion

Xuefeng Tang's contributions to the field of telecommunications, particularly with his advances in coherent transmitter technologies, exemplify the impact of innovation on modern communication systems. With a strong foundation of patents and collaborations, he continues to shape the future of signal processing and data transmission, solidifying his legacy as a prominent inventor in the industry.