Kazuki Katagishi

Title: Kazuki Katagishi: Innovator in Signal Processing Technology

Introduction

Kazuki Katagishi is a prominent inventor based in Tsukuba, Japan. He has made significant contributions to the field of signal processing, holding a total of 4 patents. His work focuses on developing devices and methods that enhance the reproduction of discrete signals.

Latest Patents

One of his latest patents is a discrete signal processing device and processing method. This invention provides a solution for reproducing a smooth signal from a discrete signal that has a non-uniform sample point interval. The device includes a coefficient calculation unit that inputs a sample point signal representative of the time of a sample point of a discrete signal. It calculates a coefficient of a sampling function corresponding to the discrete signal. Additionally, a reproduction signal calculation unit obtains a continuous reproduction signal by calculating and outputting a function value within the sample point interval from the discrete signal and the coefficient value.

Another notable patent is a signal processing device and method, along with a signal processing program and a recording medium where the program is recorded. This device outputs a discrete signal composed of a string of sampling values and parameters. It includes a sampling circuit that samples an input signal and outputs a discrete signal. The device also features multiple function generators that generate various sampling functions with different parameters. Furthermore, it has plural inner product operating units that take an inner product between the input signal and each of the sampling functions, outputting an inner product operating value. A judging unit determines the parameter providing the minimum error from multiple errors and outputs the parameters signal.

Career Highlights

Kazuki Katagishi is currently affiliated with the Japan Science and Technology Agency. His work at this institution has allowed him to focus on innovative research and development in signal processing technologies.

Collaborations

He has collaborated with notable colleagues such as Kazuo Toraichi and Kouji Nakamura, contributing to advancements in their shared field of expertise.

Conclusion

Kazuki Katagishi's contributions to signal processing technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the field significantly.