Company Filing History:
Years Active: 1998-2001
Title: Innovations by Inventor Xiao-fan Feng
Introduction
Xiao-fan Feng is a notable inventor based in Webster, NY (US). She has made significant contributions to the field of image processing and scanning technologies. With a total of 3 patents to her name, her work has had a considerable impact on the industry.
Latest Patents
One of her latest patents is titled "Method and system for hybrid error diffusion processing of image information using adaptive white and black reference values." This invention implements a high addressability characteristic into an error diffusion process. It generates a histogram of the image and determines the actual background and black reference values. The method involves receiving a gray level value representing a pixel, which is then interpolated to generate subpixel gray level values corresponding to a higher resolution. A threshold circuit thresholds the interpolated gray level value, generating an error value that is diffused to adjacent pixels on the next scanline.
Another significant patent is "Method and system for automatically detecting an edge and width of a document." This invention automatically determines the width of a document when it is loaded for scanning or copying. The scanner collects a predetermined number of scanlines of the leading edge of the document. The auto-width detection process is adaptive to variations in CCD sensor output, document characteristics, and scanner performance, making it robust against dust and random fluctuations.
Career Highlights
Xiao-fan Feng is currently employed at Xerox Corporation, a leading company in the field of imaging and printing technologies. Her work at Xerox has allowed her to develop innovative solutions that enhance the efficiency and quality of image processing.
Collaborations
Throughout her career, she has collaborated with notable colleagues, including David Jon Metcalfe and Roger Lee Triplett. These collaborations have contributed to the advancement of her research and the successful implementation of her inventions.
Conclusion
Xiao-fan Feng's contributions to image processing and scanning technologies demonstrate her innovative spirit and dedication to advancing the field. Her patents reflect her expertise and commitment to developing solutions that address real-world challenges.