Geoffrey Poskitt

Title: The Innovations of Geoffrey Poskitt

Introduction

Geoffrey Poskitt is a notable inventor based in Camberley, GB. He has made significant contributions to the field of data processing, holding a total of 4 patents. His work focuses on enhancing the efficiency and speed of data processing systems.

Latest Patents

Geoffrey's latest patents include a data processing system with cache memory addressable by virtual addresses. This innovative system allows a data processing unit to access data in a cache using a virtual address. If the data is not found in the cache, the virtual address is translated by a memory management unit (MMU) into a physical address for accessing the main memory. The MMU can also access the cache using the physical address to retrieve page table entries held in the cache. This design avoids the need for a main memory access to retrieve the page table entries, thereby speeding up the address translation operation. The physically addressed entries in the cache are tagged with a reserved context number to distinguish them from the virtually addressed data.

Another significant patent is a data processing system with an information transfer bus and wait signal. This system consists of several processing modules and memory modules interconnected by a common bus. If a memory module is not free to accept addresses or data from the bus, it asserts an address wait (AW) signal or a data wait (DW) signal. When a processing module sends an address or data over the bus, it typically holds it there for one clock cycle only. However, if the relevant wait signal is asserted, the address or data is held on the bus until this wait signal is removed. This arrangement eliminates the need for acknowledgment on the bus, thus speeding up the transaction of information.

Career Highlights

Geoffrey Poskitt is currently employed at International Computers Limited, where he continues to innovate in the field of data processing. His work has had a lasting impact on the efficiency of data handling in computing systems.

Collaborations

Geoffrey has collaborated with notable colleagues such as Terence M Cole and David P Crane, contributing to advancements in their respective fields.

Conclusion

Geoffrey Poskitt's contributions to data processing technology through his patents demonstrate his commitment to innovation and efficiency. His work continues to influence the industry and pave the way for future advancements.