Wataru Doi

Title: Wataru Doi: Innovator in Frequency Measurement Technology

Introduction

Wataru Doi is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of frequency measurement technology, holding a total of 4 patents. His innovative work has led to advancements that simplify measurement processes and enhance the efficiency of frequency analysis.

Latest Patents

Doi's latest patents include a frequency characteristics measuring device and a frequency characteristic measuring apparatus. The frequency characteristics measuring device features a spectrum analyzer that includes two sets of measuring units with mixers, local oscillators, and IF sections. This design allows for the separate measurement of frequency characteristics of two input signals. The device also incorporates a trigger control section that generates a trigger signal for measurement timing, along with a sweep control section that synchronizes the local oscillators. This innovation simplifies the configuration required for measurements and reduces the effort involved.

The frequency characteristic measuring apparatus is designed to measure a device under test where the input and output signal frequencies differ. It streamlines the configuration of a tracking generator and its associated circuits, enabling simultaneous measurement of both input and output signal characteristics. This apparatus also utilizes mixers, local oscillators, and IF sections to perform frequency sweeps across different frequency ranges.

Career Highlights

Wataru Doi is currently employed at Advantest Corporation, where he continues to develop cutting-edge technologies in frequency measurement. His work has been instrumental in advancing the capabilities of spectrum analyzers and related devices.

Collaborations

Doi collaborates with talented individuals in his field, including Satoru Aoyama and Yohei Hirakoso. Their combined expertise contributes to the innovative projects at Advantest Corporation.

Conclusion

Wataru Doi's contributions to frequency measurement technology exemplify his dedication to innovation and excellence. His patents reflect a commitment to simplifying complex measurement processes, making significant strides in the field.