Location History:
- San Diego, CA (US) (1994)
- Carlsbad, CA (US) (1994 - 2000)
Company Filing History:
Years Active: 1994-2000
Title: Howard J Keller: Innovator in Emulated Computer Systems
Introduction
Howard J Keller is a notable inventor based in Carlsbad, California. He has made significant contributions to the field of computer systems, particularly in the area of emulation and memory management. With a total of 6 patents to his name, Keller's work has had a lasting impact on technology.
Latest Patents
Keller's latest patents include a method for diagnosing faults in an emulated computer system. This innovative approach involves an instruction processor that directly executes a set of native instructions. The system includes a memory that stores foreign user programs and a foreign operating system, which are compilations of foreign instructions and data. A heterogeneous diagnostic program is initiated in response to user-selectable events, allowing for the diagnosis of defects in the foreign operating system or user programs while the native operating system is running.
Another significant patent is a system for pointer updating across paged memory. This method updates the logical address of pointers used by a processor in a paged memory organization. The logical address associative memory acts as a cache, holding data about a paged segment of data words, which eliminates the need to fetch data from main memory. The system is designed to expedite situations where the page referenced by the next address differs from that of the original pointer's address.
Career Highlights
Keller has built a successful career at Unisys Corporation, where he has been able to apply his innovative ideas and technical expertise. His work has contributed to advancements in computer technology and has positioned him as a respected figure in the industry.
Collaborations
Throughout his career, Keller has collaborated with notable colleagues, including Christopher E Smith and Robert L Noble. These partnerships have fostered an environment of innovation and have led to the development of groundbreaking technologies.
Conclusion
Howard J Keller's contributions to the field of computer systems through his patents and work at Unisys Corporation highlight his role as a key innovator. His advancements in emulated computer systems and memory management continue to influence the technology landscape.