Gunkichi Satoh

Title: Gunkichi Satoh: Innovator in Interference Detection and Reduction

Introduction

Gunkichi Satoh is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of telecommunications, particularly in interference detection and reduction. With a total of 3 patents to his name, Satoh's work has had a lasting impact on signal processing technologies.

Latest Patents

One of Satoh's latest patents focuses on interference detection and reduction. This invention involves processing a signal of an input frequency to a demodulator, such as a PSK signal, which is appended with a bit sequence for carrier recovery and bit timing recovery. This technology is particularly useful in Time Division Multiple Access (TDMA) systems. The patent describes a method to limit the attenuation of a band-elimination filter to a value smaller than a certain threshold. Additionally, it combines the intermediate frequency (IF) signal with the band-elimination filter output via a narrow band-pass filter to control attenuation in specific frequency bands. This innovation helps prevent degradation of the TDMA signal quality.

Another significant patent by Satoh is a bit error rate measuring system. This system measures the bit error rate of M-phase digital phase-modulated waves through a series of steps, including multiplying a received wave and phase-detecting the multiplied signal. By comparing the output level of the phase detection with a threshold, errors can be detected and counted. This system allows for easy and accurate measurement of bit error rates using a simple circuit structure.

Career Highlights

Throughout his career, Gunkichi Satoh has worked with prominent companies such as Kokusai Denshin Denwa Co., Ltd. and Kokusai Denshin Denwa Kabushiki Kaisha. His experience in these organizations has contributed to his expertise in telecommunications and signal processing.

Collaborations

Satoh has collaborated with notable individuals in his field, including Toshio Mizuno and Michihisa Ohkawa. These collaborations have likely enriched his work and led to further advancements in technology.

Conclusion

Gunkichi Satoh is a distinguished inventor whose work in interference detection and reduction has made a significant impact on telecommunications. His innovative patents and career achievements highlight his contributions to the field.