Company Filing History:
Years Active: 2009
Title: Xu Changqing: Innovator in Signal Demodulation Technology
Introduction
Xu Changqing is a notable inventor based in Singapore, recognized for his contributions to the field of signal processing. He has developed innovative technologies that enhance the efficiency of demodulating modulated signals. His work is particularly significant in the realm of telecommunications and data transmission.
Latest Patents
Xu Changqing holds a patent for an "Apparatus and method for demodulating a modulated signal." This invention includes an analog to digital converter that transforms an analog modulated input signal into a digital signal. The converter samples the input signal at a predetermined rate, which is crucial for accurate signal processing. Following this, a digital down converter reduces the frequency of the digital signal to one quarter of the sampling rate. A low pass filter is employed to eliminate unwanted frequencies, while a frequency offset stage modifies the frequency of the filtered signal to minimize frequency offset. Finally, a differential demodulator processes the signal after the frequency adjustment. This patent showcases Xu's expertise in developing advanced signal processing techniques.
Career Highlights
Xu Changqing is currently employed at Oki Techno Centre (Singapore) Pte Ltd, where he continues to innovate and contribute to the field of technology. His work at this company has allowed him to collaborate with other talented professionals and further his research in signal demodulation.
Collaborations
Some of Xu's coworkers include Li Zhiping and Hu Saigui, who are also involved in various technological advancements. Their collaboration fosters a creative environment that encourages innovation and the development of new ideas.
Conclusion
Xu Changqing is a prominent inventor whose work in signal demodulation has made a significant impact in the technology sector. His patent reflects his dedication to improving communication technologies, and his career continues to thrive at Oki Techno Centre.