Ryoichi Takano

Title: Ryoichi Takano: Innovator in Phase Locked Loop Technologies

Introduction

Ryoichi Takano is a prominent inventor based in Takasaki, Japan. He has made significant contributions to the field of electronics, particularly in the development of phase locked loop (PLL) technologies. With a total of 11 patents to his name, Takano's work has had a substantial impact on communication systems and integrated circuits.

Latest Patents

Takano's latest patents include innovations such as phase locked loop circuits, offset PLL transmitters, radio frequency integrated circuits, and mobile phone systems. One notable invention is a PLL circuit equipped with a loop gain detecting circuit that can suppress changes in loop gain. This circuit detects loop gain by altering the frequency of the input signal to the second input of the phase detector and measuring the response through a voltage locked oscillator. The optimization of phase locked loop characteristics is achieved by feedback based on the detection results of the charge pump current. Another significant patent involves a transmitter adopting a polar loop system, which includes a phase control loop for managing the phase of a carrier signal and an amplitude control loop for controlling the output signal's amplitude. This transmitter is designed to support both GMSK and 8-PSK modulation modes.

Career Highlights

Throughout his career, Ryoichi Takano has worked with notable companies such as Renesas Technology Corporation and Ttpcom Limited. His experience in these organizations has allowed him to refine his expertise in communication technologies and integrated circuit design.

Collaborations

Takano has collaborated with esteemed professionals in his field, including Kazuhiko Hikasa and Patrick Wurm. These collaborations have contributed to the advancement of technologies in the electronics sector.

Conclusion

Ryoichi Takano's innovative work in phase locked loop technologies and his extensive patent portfolio highlight his significant contributions to the field of electronics. His inventions continue to influence communication systems and integrated circuit design, showcasing the importance of his work in modern technology.