David James Mannion

Title: Inventor David James Mannion: A Pioneer in Network Technology

Introduction

David James Mannion, an accomplished inventor based in Northboro, MA, has made significant contributions to the field of computer networking. With a total of two patents to his name, Mannion's work showcases innovative approaches to enhancing data transmission and encoding techniques.

Latest Patents

Mannion's latest patents demonstrate his expertise in developing advanced technologies for computer network switches. The first of his latest patents is "Transmit Queue Caching." This innovation includes a computer network switch that features a receiving module for receiving packets, a packet memory with multiple buffer cells, each containing a buffer descriptor. The design involves a descriptor free pool that lists available buffer descriptors suited for new incoming packets. Various transmit queues hold these descriptors and include an input queue, an expansion queue, and an output queue. The control logic of the switch directs the removal of a buffer descriptor from the free pool and manages the packets' flow into corresponding buffer cells.

The second patent focuses on a "Method for Unit Distance Encoding of Asynchronous Pointers for Non-Power-of-Two Sized Buffers." This technique encodes index values of asynchronous pointers for buffers that do not conform to power-of-two sizing while maintaining unit distance properties. The method comprises converting pointer index values from natural binary-coded decimal format to a unit distance code format like gray code. It also involves modifying the most significant bit and strategically adding pointer index values to achieve a unique encoding structure.

Career Highlights

David James Mannion has worked with 3Com Corporation, a company recognized for its innovations in networking technologies. His contributions to the field have played a vital role in advancing data communication and switch performance.

Collaborations

Throughout his career, Mannion has collaborated with notable coworkers, including Carl John Lindeborg and James Scott Hiscock. These partnerships have fostered an environment of innovation, allowing for the exchange of ideas leading to groundbreaking developments in networking technology.

Conclusion

David James Mannion is a noteworthy inventor whose patents represent significant advancements in computer networking. His contributions to the technology landscape continue to influence the development of efficient data transmission methods, solidifying his legacy as a pioneer in the field.