This inventor holds 5 USPTO granted patents, plus 1 CIPO patent. Top assignee: At&t Bell Laboratories. Active years: 1985-1994.
Company Filing History:
Years Active: 1985-1994
Title: Innovations of James J Phelan in Telecommunications
Introduction
James J Phelan is a notable inventor based in Downers Grove, IL (US), recognized for his contributions to telecommunications technology. He holds a total of 5 patents, showcasing his expertise and innovative spirit in the field.
Latest Patents
Phelan's latest patents include significant advancements in establishing telecommunications call paths between clustered switching systems. His invention involves converting Pulse Code Modulation (PCM) signal streams into Asynchronous Transfer Mode (ATM) cells for efficient switching and transmission across telecommunications networks. Each cell is capable of carrying one PCM sample from up to 48 different voice connections, selected based on a common destination. The cells are transmitted over ATM virtual circuits, with each circuit transmitting one cell every 125 microseconds. This technology allows ATM transmission systems to interface seamlessly with PCM systems, minimizing delays and eliminating the need for additional buffering. Furthermore, it enables the establishment of new voice paths by utilizing available slots in the cells of existing virtual paths.
Another notable patent by Phelan focuses on establishing telecommunications calls in a broadband network, employing similar principles of converting PCM signal streams into ATM cells. This innovation enhances the methods of establishing connections within telecommunications systems, further solidifying Phelan's impact on the industry.
Career Highlights
James J Phelan has made significant strides in his career, working at AT&T Bell Laboratories, a leading institution in telecommunications research and development. His work has contributed to the advancement of technologies that facilitate efficient communication systems.
Collaborations
Throughout his career, Phelan has collaborated with esteemed colleagues, including Thomas L Hiller and Meyer J Zola. These partnerships have fostered an environment of innovation and have led to the development of groundbreaking technologies in telecommunications.
Conclusion
James J Phelan's contributions to telecommunications through his patents and work at AT&T Bell Laboratories highlight his role as a key innovator in the field. His inventions continue to influence the way telecommunications systems operate today.