Company Filing History:
Years Active: 1988-2004
Title: Innovations of Tadashi Matsumoto
Introduction
Tadashi Matsumoto is a notable inventor based in Yokosuka, Japan. He has made significant contributions to the field of mobile communications, holding a total of 5 patents. His work focuses on enhancing communication systems, particularly in broadband mobile environments.
Latest Patents
Matsumoto's latest patents include a sequential decoder and a receiver using a sequential decoder. The sequential decoder is designed for use in broadband mobile communications and computes likelihood values by referring to histories of paths, thereby reducing the required computational effort. This innovation includes signal points with small tap coefficient values in an equalizer with a transversal filter. Additionally, he has developed a time-division multiple-access (TDMA) communication system that adapts to different communication environments. This system allows mobile stations to operate under various sets of communication conditions, including transmission power, modulating methods, and error-correction techniques.
Career Highlights
Throughout his career, Matsumoto has worked with prominent companies such as NTT Mobile Communications Network, Inc. and Nippon Telegraph and Telephone Corporation. His experience in these organizations has contributed to his expertise in mobile communication technologies.
Collaborations
Matsumoto has collaborated with several professionals in his field, including Narumi Umeda and Youichi Douzono. These collaborations have likely enriched his work and led to further advancements in communication technologies.
Conclusion
Tadashi Matsumoto's contributions to mobile communications through his innovative patents and collaborations highlight his significant role in the industry. His work continues to influence the development of advanced communication systems.