Company Filing History:
4 out of 745 
3 out of 3,345 
2 out of 9,364 
Years Active: 1984-2006
Title: Shih-Jeh Chang: Innovator in Telecommunications
Introduction
Shih-Jeh Chang is a prominent inventor based in Naperville, IL (US), known for his significant contributions to telecommunications technology. With a total of nine patents to his name, Chang has developed innovative solutions that enhance the reliability and efficiency of communication systems.
Latest Patents
Among his latest patents is a "Redundant packet telecommunication network system using minimum hamming distances to construct a final estimate of an original codeword." This invention focuses on a method of forward error control, where a transmitter receives data and creates original codewords transmitted over two distinct telecommunications channels. This approach increases the robustness of the communication link and minimizes the time taken for the receiver to obtain a final estimate of the original codeword.
Another notable patent is aimed at "Preventing wireless telecommunications calls from being disconnected due to low signal quality." This technique involves notifying users of wireless terminals when they are at risk of entering a low signal area, assisting them in navigating away from such zones. The invention includes measuring signal quality and directing users to move their devices to maintain connectivity.
Career Highlights
Shih-Jeh Chang has worked with several prestigious companies, including American Telephone & Telegraph Co. and AT&T Bell Laboratories. His experience in these organizations has allowed him to develop and refine his innovative ideas in telecommunications.
Collaborations
Chang has collaborated with notable individuals in the field, including Richard T. Emery and Shafik J. Hakim. These partnerships have contributed to the advancement of his inventions and the overall progress in telecommunications technology.
Conclusion
Shih-Jeh Chang's work in telecommunications has led to significant advancements that improve communication reliability and user experience. His innovative patents reflect his dedication to enhancing technology in this vital field.