Hirotaka Osawa

Title: Innovations of Hirotaka Osawa

Introduction

Hirotaka Osawa is a prominent inventor based in Isesaki, Japan. He has made significant contributions to the field of communication technology, holding a total of seven patents. His work primarily focuses on semiconductor integrated circuits and wireless communication systems.

Latest Patents

Osawa's latest patents include a communication semiconductor integrated circuit device and a wireless communication system. In one of his inventions, an oscillator of a Phase-Locked Loop (PLL) circuit can operate across multiple frequency bands. By fixing the control voltage of the oscillator to a predetermined value, the oscillation frequency is measured for each band and stored in a memory. When the PLL operates, the setting value for the specified band is compared with the stored frequency values, allowing the system to determine the band that will be used by the oscillator. Another patent involves a communication semiconductor integrated circuit device that utilizes offset PLL architectures. This device includes an oscillator circuit and a frequency divider circuit that generates an intermediate frequency signal. The oscillator circuit comprises an oscillator, a programmable frequency divider, a phase comparator, and a frequency control unit. The frequency division ratio generator circuit produces frequency division ratio information based on band and mode information, which is then provided to the programmable frequency divider.

Career Highlights

Hirotaka Osawa has worked with notable companies in the technology sector, including Renesas Technology Corporation and Ttpcom Limited. His experience in these organizations has contributed to his expertise in semiconductor technology and communication systems.

Collaborations

Osawa has collaborated with several professionals in his field, including Toshiya Uozumi and Satoru Yamamoto. These collaborations have likely enhanced his innovative capabilities and contributed to the development of his patents.

Conclusion

Hirotaka Osawa is a distinguished inventor whose work in communication technology has led to several important patents. His contributions continue to influence the field of semiconductor integrated circuits and wireless communication systems.