This inventor holds 4 USPTO granted patents. Top assignee: Fuji Xerox Co., Ltd.. Active years: 1996-2000.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Saitama, JP (1996)
- Ebina, JP (1996)
- Kanagawa, JP (1999 - 2000)
Company Filing History:
Years Active: 1996-2000
Title: Ken Umezawa: Innovator in Image Signal Encoding
Introduction
Ken Umezawa is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of image signal encoding, holding a total of 4 patents. His work has advanced the technology used in image processing and encoding, making it more efficient and effective.
Latest Patents
One of Ken Umezawa's latest patents is an image signal encoding apparatus. This innovative device reads an image from an original source and converts it into color data values, which include lightness and chromaticity components. The data values are stored and divided into pixel blocks, with separate blocks for lightness and chromaticity components. The apparatus computes average lightness and chromaticity data values for these pixel blocks. It then determines whether the pixel blocks correspond to color, monochrome, or background regions based on these average values. The device outputs lightness pixel block data values during the region determination and subsequently outputs both lightness and chromaticity pixel block data values. The lightness pixel block data values are adaptively bi-level connected based on the region determination results. A bi-level image encoder encodes these values, while a color image encoder processes the chromaticity pixel block data values. Finally, a transmitter sends the encoded data values.
Career Highlights
Ken Umezawa is currently employed at Fuji Xerox Co., Ltd., where he continues to innovate in the field of image processing. His work has been instrumental in developing technologies that enhance the quality and efficiency of image encoding.
Collaborations
Throughout his career, Ken has collaborated with notable colleagues, including Kazuhiro Suzuki and Toshiaki Yoshinari. These collaborations have contributed to the advancement of their shared goals in image signal processing.
Conclusion
Ken Umezawa's contributions to image signal encoding have made a significant impact in the field. His innovative patents and collaborations reflect his dedication to advancing technology in image processing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile