Eiji Itaya

Title: Eiji Itaya: Innovator in Radio Transmission Systems

Introduction

Eiji Itaya is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of radio transmission systems, holding a total of 9 patents. His innovative work has paved the way for advancements in communication technology.

Latest Patents

One of Itaya's latest patents is a radio transmission system that includes a master station and multiple series-connected substations. This system operates via a radio channel, where the first receiving unit captures a variety of modulated waves. These waves are modulated using spread spectrum techniques, allowing the demodulating unit to process only the baseband signal intended for it. The modulated waves are then transmitted by the first transmitting unit to an adjacent substation without undergoing demodulation or modulation in between.

Another notable patent is an automatic frequency control (AFC) circuit. This circuit receives input signals and generates converted signals by mixing them with a local oscillation signal. It features an extraction circuit that can identify a pilot signal from the input signals, which is then provided to a switch. The frequency divider divides the frequency of the local oscillation signal, and the output is compared with a reference frequency in a phase comparator. This setup stabilizes the frequency of the local oscillation signal, ensuring reliable performance.

Career Highlights

Eiji Itaya is currently employed at Fujitsu Corporation, where he continues to innovate and develop new technologies. His work has been instrumental in enhancing the capabilities of radio transmission systems, making them more efficient and reliable.

Collaborations

Throughout his career, Itaya has collaborated with notable colleagues such as Yoshiaki Kumagai and Yoichi Endo. These partnerships have contributed to the success of various projects and innovations in the field.

Conclusion

Eiji Itaya's contributions to radio transmission systems exemplify his dedication to innovation and technology. His patents reflect a deep understanding of communication systems, and his work continues to influence the industry.