Douglas C Holman

Title: The Innovations of Douglas C. Holman

Introduction

Douglas C. Holman is a prominent inventor based in San Jose, California. He has made significant contributions to the field of technology, particularly in the area of computer architecture and instruction processing. With a total of nine patents to his name, Holman has demonstrated a commitment to advancing the efficiency and security of computing systems.

Latest Patents

Among his latest patents are "Systems and methods for optimizing authentication branch instructions" and "Systems, apparatuses, and methods for efficient handling of subroutine epilogues." The first patent focuses on a method where an indirect control transfer instruction corresponding to a procedure return for a subroutine is identified. It involves retrieving a return address and a signature from a return address stack and memory stack. An authenticator generates a signature based on the retrieved return address while instruction processing continues speculatively. A mismatch in the generated signature later causes an exception. The second patent describes an apparatus that includes an instruction cache circuit and an instruction fetch circuit. This apparatus is designed to retrieve a fetch group of instructions and determine if it includes a control transfer instruction that is predicted to be taken, allowing for alterations based on the type of control transfer instruction.

Career Highlights

Holman has had a distinguished career, working at Apple Inc., where he has been able to apply his innovative ideas to real-world applications. His work has contributed to the development of more efficient computing systems, enhancing both performance and security.

Collaborations

Throughout his career, Holman has collaborated with notable colleagues, including Ian D. Kountanis and Richard F. Russo. These collaborations have further enriched his work and contributed to the success of various projects.

Conclusion

Douglas C. Holman is a notable inventor whose contributions to technology have had a lasting impact. His innovative patents and work at Apple Inc. highlight his dedication to improving computing systems.