Yoshikazu Katoh

Title: The Innovations of Yoshikazu Katoh

Yoshikazu Katoh is a notable inventor based in Katano, Japan. He has made significant contributions to the field of technology, particularly in the area of clock recovery apparatus. With a total of 2 patents, his work has garnered attention for its innovative approach to signal processing.

Latest Patents

One of Yoshikazu Katoh's latest patents involves a clock recovery apparatus. In this invention, a reproduction signal is processed through an AD converter and an equalizer to create a decoder input signal. This decoder input signal is crucial for calculating a phase error signal and a quality judgment signal. A phase-frequency error detection circuit is designed to retain the sign of the phase error signal when the quality judgment signal transitions from "good" to "bad." When the signal quality is deemed "good," the circuit outputs the phase error signal as a phase-frequency error signal. Conversely, when the signal quality is "bad," it outputs a predetermined value corresponding to the retained sign. Additionally, a voltage-controlled oscillator generates a recovered clock signal based on the oscillation control signal produced by the phase-frequency error signal.

Career Highlights

Yoshikazu Katoh is currently employed at Matsushita Electric Industrial Co., Ltd., where he continues to innovate and develop new technologies. His work at this esteemed company has allowed him to collaborate with other talented professionals in the field.

Collaborations

One of his notable coworkers is Haruo Ohta, with whom he has likely shared insights and expertise in their respective projects.

Conclusion

Yoshikazu Katoh's contributions to technology, particularly in clock recovery apparatus, highlight his innovative spirit and dedication to advancing the field. His patents reflect a deep understanding of signal processing and its applications.