Company Filing History:
4 out of 821 
2 out of 86 
1 out of 10 Years Active: 1987-2003
Title: Jitender K Vij: Innovator in Network Switching Technology
Introduction
Jitender K Vij is a notable inventor based in Trumbull, CT (US). He has made significant contributions to the field of network switching technology, holding a total of 8 patents. His work focuses on enhancing the efficiency and functionality of network switches, particularly in handling various types of data traffic.
Latest Patents
One of his latest patents involves a network switch that supports TDM, ATM, and variable length packet traffic, which includes automatic fault and congestion correction. This innovative network switch comprises at least one port processor and at least one switch element. The port processor features an SONET OC-x interface for TDM traffic, a UTOPIA interface for ATM and packet traffic, and an interface to the switch element. In one embodiment, the port processor achieves a total I/O bandwidth equivalent to an OC-48, while the switch element boasts 12×12 ports, providing a total bandwidth of 30 Gbps.
A typical switch designed by Vij includes multiple port processors and switch elements. It utilizes a data frame of 9 rows by 1700 slots to transport ATM, TDM, and packet data from a port processor through one or more switch elements to the same or another port processor. Each frame is transmitted in 125 microseconds, with each row taking 13.89 microseconds. Each slot contains a 4-bit tag and a 4-byte payload, with a slot bandwidth of 2.592 Mbps, sufficient to carry an E-1 signal with overhead. The 4-bit tag serves as a cross-connect pointer set up when a TDM connection is provisioned. The last twenty slots of the frame are reserved for link overhead, allowing the frame to carry the equivalent of 1,680 E-1 TDM signals. For ATM and packet data, a protocol data unit (PDU) of 16 slots is defined for a 64-byte payload. The PDUs are self-routed through the switch using a 28-bit routing tag, enabling routing through seven switch stages with 4-bits per stage. Bandwidth is arbitrated among ATM and packet connections while maintaining TDM timing.
Career Highlights
Throughout his career, Jitender K Vij has worked with prominent companies such as Itt Corporation and Transwitch Corporation. His experience in these organizations