Location History:
- Kanata, CA (2022)
- Stittsville, CA (2022 - 2023)
Company Filing History:
Years Active: 2022-2024
Title: Innovations of Wing Chau Ng
Introduction
Wing Chau Ng is an accomplished inventor based in Stittsville, Canada. He has made significant contributions to the field of coherent transmission technology, holding a total of 4 patents. His work focuses on improving the efficiency and accuracy of data transmission systems.
Latest Patents
One of his latest patents is titled "Self-calibrating device and method for in-phase and quadrature time skew and conjugation in a coherent transmitter." This invention describes methods and devices for compensating and calibrating IQ time skew and conjugation in coherent transmitters or transceivers. A pilot tone is combined with a digital data signal, allowing for the detection of relative powers of the pilot tone in two frequency bands. This information is used to calculate the time skew between I and Q modulation channels of the transmitter. The transmitter's digital signal processor (DSP) applies IQ time skew bias to the data signal to compensate for any calculated skew. Additionally, the pilot tone detector provides necessary information to detect phase conjugation of the optical signal, which can be corrected by inverting the polarity of the data signal or adjusting the phase bias point of the optical modulator.
Another notable patent is focused on "Apparatuses and methods of far-end transmitter skew monitoring in digital subcarrier multiplexing systems." This invention outlines methods for monitoring transmitter IQ skew in a digital subcarrier multiplexing (DSCM) system. It utilizes soft symbols for a given subchannel and a corresponding mirror subchannel as joint inputs to a MIMO equalizer. The hard decision symbols serve as references to compute equalizer coefficients, allowing for the estimation of phase or transmitter IQ skew for all subchannels. The computed skew is communicated back to the transmitter via optical path for correction.
Career Highlights
Wing Chau Ng is currently employed at Huawei Technologies Co., Limited, where he continues to innovate in the field of telecommunications. His work has been instrumental in advancing coherent transmission technologies, making significant impacts on data communication systems.
Collaborations
He has collaborated with notable colleagues, including Xuefeng Tang and Zhuhong Zhang, who have contributed to his research and development efforts.
Conclusion
Wing Chau Ng's innovative work in coherent transmission technology has led to several patents that enhance the efficiency and accuracy of data transmission systems. His contributions are vital to the ongoing advancements in telecommunications.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.