Robert P St John

Title: Innovations of Robert P. St. John

Introduction

Robert P. St. John is a notable inventor based in Sunnyvale, CA. He has made significant contributions to the field of electrographic recording and image reproduction. With a total of 4 patents, his work has advanced the technology used in various imaging applications.

Latest Patents

One of his latest patents is titled "Enhanced fidelity reproduction of images by hierarchical template." This invention enhances the contour fidelity of image reproduction by matching groups of pixels with templates based on a hierarchical set of patterns. The technique involves isolating a symmetrical window of pixels, including a central pixel, and matching these groups with hierarchical templates. This method significantly reduces hardware requirements while improving image quality.

Another significant patent is the "Color electrographic recording apparatus." This apparatus produces composite color images by superimposing component images of different colors, such as magenta, cyan, yellow, and black. It includes a recording station with a recording head that forms latent images on a recording medium. The apparatus is designed to ensure that all component color images are accurately superimposed, even with variations in the medium during processing.

Career Highlights

Robert P. St. John has had a distinguished career at Xerox Corporation, where he has contributed to various innovative projects. His work has been instrumental in enhancing the capabilities of electrographic recording technologies.

Collaborations

Throughout his career, he has collaborated with notable coworkers, including William A. Lloyd and Douglas N. Curry. These collaborations have further enriched his contributions to the field.

Conclusion

Robert P. St. John is a prominent inventor whose work in image reproduction and electrographic recording has made a lasting impact on technology. His innovative patents continue to influence the industry and pave the way for future advancements.