Hiroyuki Urata

Title: Hiroyuki Urata: Innovator in Video Signal Processing

Introduction

Hiroyuki Urata is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of video signal processing, holding a total of 7 patents. His work focuses on enhancing the efficiency and accuracy of video signal conversion.

Latest Patents

One of Hiroyuki Urata's latest patents is a video signal processing device designed for automatically adjusting the phase of sampling clocks. In this innovative device, an input video signal representing a test pattern with two gradations of black and white is converted to 8-bit data by an A/D converter in synchronism with sampling clocks generated in a write-in control circuit. The data is then stored in a memory. An MPU reads out picture element data from the effective area of the video signal stored in the memory. It calculates the difference between the average values of white-level and black-level picture element data, as well as the total variance between these two sets of data. The MPU controls the phase of the sampling clocks to maximize the difference and minimize the variance, ensuring that the sampling phase is automatically adjusted to the optimum value during the conversion of the video signal to digital data.

Career Highlights

Hiroyuki Urata is currently employed at Hitachi, Ltd., where he continues to develop innovative technologies in video processing. His expertise in this area has led to advancements that improve the quality and reliability of video signals.

Collaborations

Hiroyuki has collaborated with notable coworkers, including Atsushi Maruyama and Kazutaka Naka. Their combined efforts contribute to the ongoing success of their projects at Hitachi.

Conclusion

Hiroyuki Urata's contributions to video signal processing exemplify the impact of innovation in technology. His patents reflect a commitment to enhancing digital data conversion, making significant strides in the field.