This inventor holds 1 USPTO granted patent. Top assignee: National Science Council. Active years: 2003.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2003
Title: Chang-Yuan Hsieh: Innovator in Optical CDMA Technology
Introduction
Chang-Yuan Hsieh is a prominent inventor based in Tainan, Taiwan. He has made significant contributions to the field of optical communications, particularly in the development of fiber-optic code-division multiple-access (FO-CDMA) networks. His innovative work has led to advancements that enhance the efficiency and performance of optical communication systems.
Latest Patents
Chang-Yuan Hsieh holds a patent for a "Fiber Bragg Grating-Based Optical CDMA Encoder/Decoder." This invention presents an optical spectral coding scheme designed for FO-CDMA networks. The spectral coding leverages the pseudo-orthogonality of FO-CDMA codes, which are effectively inscribed in fiber Bragg grating (FBG) devices. The invention allows for the reflection and spectral coding of incoming broadband optical signals using the designed Bragg wavelengths of the FBG, which are associated with FO-CDMA address codes. By utilizing maximal-length sequence codes (M-sequence codes) as signature or address codes, the system exemplifies the coding and correlation processes within the FO-CDMA framework. This invention supports multiple users by assigning N cyclic shifts of an M-sequence code vector to N users, thereby facilitating simultaneous access in the FO-CDMA network.
Career Highlights
Chang-Yuan Hsieh is affiliated with the National Science Council, where he continues to engage in research and development in optical technologies. His work has been instrumental in advancing the capabilities of fiber-optic communication systems, making them more robust and efficient.
Collaborations
Chang-Yuan has collaborated with notable colleagues, including Jen-Fa Huang and Yu-Lung Lo. Their joint efforts have contributed to the progress of optical communication technologies and have fostered innovation in the field.
Conclusion
Chang-Yuan Hsieh's contributions to optical CDMA technology exemplify the impact of innovative thinking in the realm of communications. His patent on the fiber Bragg grating-based optical CDMA encoder/decoder showcases his commitment to enhancing the performance of fiber-optic networks.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile