Tsukasa Kobata

Title: **Innovations of Tsukasa Kobata: A Leader in Oscillator and PLL Device Technologies**

Introduction

Tsukasa Kobata, an esteemed inventor based in Sayama, Japan, has significantly contributed to the fields of oscillator and phase-locked loop (PLL) device technologies. With a remarkable portfolio of 27 patents, Kobata continues to influence the electronics industry through his innovative designs and applications.

Latest Patents

Kobata's latest patents include an advanced oscillator device and a sophisticated PLL device. The oscillator device is designed to output a frequency signal based on the oscillation frequency of a crystal resonator and a frequency setting value. It features a frequency difference detector that measures the difference between the output of the oscillator and an external clock signal. This device also incorporates a temperature detector, enabling it to calculate an aging coefficient and a temperature characteristic coefficient based on the secular changes in frequency and temperature over time. During holdover periods, it uses these coefficients to compute and apply a frequency correction value to enhance accuracy.

In addition, his PLL device is composed of various components including a voltage control oscillation unit, an analog/digital converter, and a phase difference detection unit. The PLL device operates by quadrature demodulating the digital feedback signal to extract both in-phase (I component) and quadrature-phase (Q component) components. This configuration allows for precise phase detection and signal comparison, ensuring reliable system performance.

Career Highlights

Throughout his career, Tsukasa Kobata has collaborated with renowned companies like Nihon Dempa Kogyo Co., Ltd. and DSP Technology Associates, Inc. His work in these organizations has helped push the boundaries of technology related to frequency generation and signal processing. The innovations stemming from his patents demonstrate his commitment to advancing electronic systems.

Collaborations

In his pursuit of technological development, Kobata has teamed up with notable colleagues such as Kazuo Akaike and Nobuo Tsukamoto. These collaborations have fostered shared knowledge and expertise, enabling them to tackle complex engineering challenges together.

Conclusion

Tsukasa Kobata stands out as a significant figure in the realm of electronics, with his 27 patents reflecting his innovative spirit and dedication to the industry. His inventions, particularly in oscillator and PLL device technologies, showcase the potential for continued advancement in electronic design and application. Through his collaborations and career achievements, Kobata exemplifies the essence of innovation that drives the electronics field forward.