Hisato Miyachi

Title: Hisato Miyachi: Innovator in Digital Watermark Technology

Introduction

Hisato Miyachi is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of digital watermarking, with a focus on methods and devices that enhance the security and integrity of digital media. His innovative work has led to the development of several patents that address the challenges of watermark embedding and detection.

Latest Patents

Hisato Miyachi holds 2 patents related to digital watermark technology. His latest patents include a digital watermark padding method, a digital watermark padding device, a digital watermark detecting method, a digital watermark detecting device, and a program. The digital watermark embedding method involves sequentially obtaining each frame image of moving image data and frame display time. It generates a watermark pattern using watermark information, the frame display time, and watermark pattern switching information. The watermark pattern is then superimposed onto the frame image, creating watermark embedded moving image data. The digital watermark detection method includes obtaining a frame image, generating a difference image between the current and previously obtained frame images, and performing digital watermark detection from the difference image.

Career Highlights

Hisato Miyachi is associated with Nippon Telegraph and Telephone Corporation, where he has been instrumental in advancing digital watermarking technologies. His work has not only contributed to the company's innovation portfolio but has also positioned him as a key figure in the field.

Collaborations

Throughout his career, Miyachi has collaborated with notable colleagues, including Takao Nakamura and Susumu Yamamoto. These collaborations have fostered a creative environment that has led to the development of cutting-edge technologies in digital watermarking.

Conclusion

Hisato Miyachi's contributions to digital watermark technology exemplify the impact of innovative thinking in the digital age. His patents and collaborative efforts continue to shape the future of digital media security.