Andrew P Weir

Title: The Innovations of Andrew P. Weir

Introduction

Andrew P. Weir is an accomplished inventor based in Blue Bell, PA (US). He has made significant contributions to the field of device virtualization, particularly in MS-DOS based operating environments. With a total of 2 patents to his name, Weir's work has had a notable impact on technology.

Latest Patents

One of Andrew P. Weir's latest patents is a method and system for device virtualization based on an interrupt. This technique provides device virtualization in an MS-DOS based operating environment using an interrupt request, such as a non-maskable interrupt. The process involves executing an application on a processor within the MS-DOS environment. When the application attempts to address the device to be emulated, a processor interrupt occurs. In response, the processor executes code that represents the virtualization of the device. The code for servicing the interrupt and emulating the device is written in protected-mode code and stored in the extended memory area. This code is made available by creating appropriate entries into the interrupt descriptor tables (IDTs) for the protected-mode contexts that exist for both the native protected-mode operating systems and the DOS extender.

Career Highlights

Throughout his career, Andrew P. Weir has worked with notable companies such as Creative Technology Corporation and Ensoniq Corporation. His experience in these organizations has contributed to his expertise in device virtualization and related technologies.

Collaborations

Andrew P. Weir has collaborated with various professionals in his field, including his coworker Joseph T. Friel. These collaborations have further enriched his work and innovations.

Conclusion

Andrew P. Weir's contributions to device virtualization demonstrate his innovative spirit and technical expertise. His patents reflect a deep understanding of technology and its applications in modern computing environments.