Introduction: Ryoichi Miyamoto, based in Tokyo, Japan, is a notable inventor in the field of digital modulation. With a total of nine patents to his name, he has significantly contributed to advancements in communication technology. His work focuses on creating efficient and high-performance digital modulation systems, enhancing modulation techniques without increasing system complexity.

Latest Patents: Among his latest patents, Ryoichi Miyamoto has developed an angular modulator with a phase variation divided and integrated. This innovative digital modulator is capable of achieving a high FM modulation index while simultaneously minimizing quantization noise, all without raising the sampling frequency of an A/D converter for input voice. The method involves dividing a phase variation of digital data produced from the A/D converter by a predetermined integer and integrating this divided phase variation to generate a corresponding phase component that is converted into analog signals for quadrature modulation. Additionally, his patent for a peak correlation timing recovery circuit involves sampling an input signal, correlating it with a reference pattern, and estimating the timing for peak correlation with remarkable precision. This estimated timing has crucial applications in bit synchronization and frame synchronization for receiving circuits.

Career Highlights: Ryoichi Miyamoto has had a distinguished career, which includes working with notable companies such as Oki Electric Industry Co., Ltd. and Oki Electric Co., Ltd. His contributions in these organizations have focused on enhancing digital communication technologies and innovations in modulation techniques, making him a key figure in the industry.

Collaborations: Throughout his career, Ryoichi Miyamoto has collaborated with esteemed colleagues, including Tatsumasa Yoshida and Kenichiro Hosoda. These partnerships have undoubtedly facilitated significant advancements in the technologies they developed together, reflecting the importance of collaboration in innovation.

Conclusion: Ryoichi Miyamoto stands out as a remarkable inventor whose latest patents showcase his expertise in digital modulation. His innovative solutions have paved the way for advancements in communication technologies, establishing him as a significant figure in the field. As he continues to build on his knowledge and experience, the impact of his work will likely resonate in the industry for years to come.

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