Company Filing History:
5 out of 6 
1 out of 5 Years Active: 1990-1993
Title: David M Pfeiffer: Innovator in Image Processing Technology
Introduction
David M Pfeiffer is a notable inventor based in Plano, TX (US), recognized for his contributions to image processing technology. He holds a total of 6 patents, showcasing his innovative approach to memory control and image processing systems.
Latest Patents
Among his latest patents is an "Image memory controller for controlling multiple memories and method of." This invention discloses a memory controller designed to manage addresses across various memory types, creating a unified addressing arrangement. The controller allows for reprogramming of the split address between memories and maintains contiguously addressed locations. A register holds the split address, which can be updated during initialization to accommodate physical memory changes. Additionally, the controller ensures a common bit length addressing word, regardless of the memory size being addressed by the system processor.
Another significant patent is the "High speed image processing computer with overlapping windows." This invention features an image processor that operates under the control of a writable control store, along with several parallel image processors. The image memory controller coordinates the reading and writing of image memory using pixel data processed by the parallel image processors. It arbitrates memory address request cycles, memory refresh cycles, and screen refresh cycles, ensuring efficient image processing.
Career Highlights
David M Pfeiffer has worked with several companies throughout his career, including Visual Information Technologies, Inc. and Pixel Semiconductor, Inc. His work in these organizations has significantly contributed to advancements in image processing technologies.
Collaborations
Throughout his career, Pfeiffer has collaborated with notable individuals such as David T Stoner and John P Norsworthy. These collaborations have further enhanced his innovative contributions to the field.
Conclusion
David M Pfeiffer's work in image processing technology and memory control has made a lasting impact on the industry. His innovative patents and collaborations reflect his dedication to advancing technology in this field.