Company Filing History:
3 out of 2,546 
2 out of 832,761 Years Active: 1981-1987
Title: Chialin Wu: Innovator in Communication and Radar Technology
Introduction
Chialin Wu is a notable inventor based in Pasadena, CA, with a focus on advancements in communication systems and radar technology. He holds a total of 5 patents, showcasing his contributions to the field of engineering and technology.
Latest Patents
One of his latest patents is a "Full duplex frequency division multiplex communication system." This innovative system comprises multiple transceivers that function as user stations, allowing communication over a common channel, such as a wireless link or a two-direction coaxial cable. Each transceiver operates on a fixed intermediate frequency for both transmission and reception. The system incorporates a network frequency converter to shift the transmission frequency band into a different receiving frequency band, ensuring no overlap. Full duplex communication is achieved through single sideband modulation of the intermediate frequency carrier, utilizing one sideband for transmission and the other for reception.
Another significant patent is the "Method and apparatus for contour mapping using synthetic aperture radar." This invention employs two SAR antennas spaced a known distance apart, oriented at the same look angle to illuminate a target area. By comparing pixel data from both antennas, a difference in phase is determined, allowing for the calculation of slant angles for each pixel point. The height of each pixel point is derived from the aircraft's altitude, and this elevation data can be displayed alongside the SAR image, enhancing the visualization of terrain.
Career Highlights
Chialin Wu has worked with the United States of America as represented by the Administrator of the Federal Aviation Administration, contributing to significant advancements in communication and radar technologies. His work has had a lasting impact on the fields of telecommunications and remote sensing.
Collaborations
Throughout his career, Chialin Wu has collaborated with notable individuals such as Kuang Yung Liu and Richard M Goldstein, further enriching his contributions to technology and innovation.
Conclusion
Chialin Wu's innovative patents and career achievements highlight his significant role in advancing communication systems and radar technology. His work continues to influence the fields of engineering and technology, showcasing the importance of innovation in modern society.