Company Filing History:
Years Active: 1989-1994
Title: Shigeo Akazawa: Innovator in Spread Spectrum Communication
Introduction
Shigeo Akazawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of communication technology, particularly in spread spectrum communication systems. With a total of 11 patents to his name, Akazawa's work has had a lasting impact on the industry.
Latest Patents
Among his latest patents is an automatic gain control system. This system features a spread spectrum receiver that includes a correlator with two convolvers. The correlation outputs are applied to a demodulator via two variable gain amplifiers, whose gains are controlled based on the demodulation output from the demodulator. Another notable patent is for a spread spectrum communication device. On the transmitter side, data is converted into multiple parallel data sets by a serial-parallel converter. Spread spectrum modulation is achieved using PN code generators and selectors. The modulated outputs are delayed and then multiplexed for transmission. On the receiver side, correlation between the received signal and a reference signal is formed to facilitate efficient data demodulation.
Career Highlights
Shigeo Akazawa has been instrumental in advancing communication technologies through his innovative designs and patents. His work at Clarion Co. has positioned him as a key figure in the development of modern communication systems. His inventions have not only enhanced the efficiency of data transmission but have also paved the way for future advancements in the field.
Collaborations
Throughout his career, Akazawa has collaborated with notable colleagues, including Masahiro Hamatsu and Masaharu Mori. These partnerships have contributed to the successful development and implementation of various communication technologies.
Conclusion
Shigeo Akazawa's contributions to the field of communication technology are significant and noteworthy. His innovative patents and collaborative efforts have helped shape the landscape of spread spectrum communication. His work continues to influence the industry and inspire future innovations.