Company Filing History:
Years Active: 2005-2015
Title: John Cheong-Wai Ngan: Innovator in Wireless Communication
Introduction
John Cheong-Wai Ngan is a prominent inventor based in Shawnee, Kansas, known for his significant contributions to wireless communication technology. With a total of 10 patents to his name, Ngan has developed innovative methods that enhance the efficiency and capacity of communication systems.
Latest Patents
One of Ngan's latest patents is titled "Method and system of reusing Walsh codes to increase forward channel capacity." This invention focuses on assigning CDMA channel codes in a multiple beam zone sector, allowing for the reuse of channel codes within the same sector. The method involves configuring directional antennas to create multiple beam zones and assigning channel codes in a way that minimizes inter-user interference. This is achieved by ensuring that at least two intervening beam zones separate users utilizing the same channel codes, particularly when the second user is not mobile.
Another notable patent is the "Method and system of selecting antennas and equipment for use within a wireless communication system." This invention outlines a system where a cell site can share one antenna arrangement among multiple groups of radio equipment operated by different wireless service providers. The base station controller plays a crucial role in selecting the appropriate antenna and group of radio equipment for signal processing, optimizing the use of shared resources.
Career Highlights
Ngan is currently employed at Sprint Spectrum L.P., where he continues to innovate in the field of wireless communication. His work has significantly impacted the efficiency of communication systems, making them more reliable and effective for users.
Collaborations
Throughout his career, Ngan has collaborated with notable professionals in the industry, including Shiva Narayanabhatla and Dae-Sik Oh. These collaborations have contributed to the advancement of technology in wireless communication.
Conclusion
John Cheong-Wai Ngan is a key figure in the field of wireless communication, with a strong portfolio of patents that demonstrate his innovative spirit. His contributions continue to shape the future of communication technology, making it more efficient and user-friendly.