Location History:
- Kanagawa, JP (1987)
- Chiba, JP (1994 - 1996)
Company Filing History:
Years Active: 1987-1996
Title: Etsumi Fujita: Innovator in Spread Spectrum Communication Systems
Introduction
Etsumi Fujita is a notable inventor based in Chiba, Japan. He has made significant contributions to the field of communication technology, particularly in the development of spread spectrum communication systems. With a total of 4 patents to his name, Fujita's work has had a considerable impact on enhancing communication efficiency and reliability.
Latest Patents
Fujita's latest patents include a spread spectrum communication system and transmitter-receiver. This innovative system performs spread spectrum communication by superimposing a pseudo noise signal on a transmitted signal. The system features traffic detecting means that monitor the traffic of the transmitted signal, along with mechanisms to adjust the clock frequency of the pseudo noise signal based on the detected traffic. Additionally, it may include transmission quality determining means to assess the quality of the received signal, allowing for further adjustments to the clock frequency. This design improves signal-to-noise ratios in high traffic or low transmission quality scenarios, conserves power during low traffic or high transmission quality conditions, and ensures precise power control for mobile stations operating near the system's capacity limits.
Career Highlights
Etsumi Fujita is currently employed at Sony Corporation, where he continues to innovate and develop advanced communication technologies. His work at Sony has positioned him as a key player in the field, contributing to the company's reputation for cutting-edge technology.
Collaborations
Fujita has collaborated with talented coworkers, including Tomoya Yamaura and Katsuya Yamamoto. These partnerships have fostered a creative environment that encourages the development of groundbreaking technologies.
Conclusion
Etsumi Fujita's contributions to spread spectrum communication systems exemplify his innovative spirit and dedication to advancing technology. His patents reflect a commitment to improving communication efficiency and reliability, making him a significant figure in the field.