Stuart Roberts

Leading the development of large (multi-million gate), DSP-intensive ASICs and FPGAs (Xilinx Virtex-II, Virtex-4, Virtex-5 and Spartan-6) for powerline and Smart Grid communications products. Routinely created compact, high-performance RTL designs from highly abstracted MatLab code for complex functions such as Wavelet-OFDM signal transform, Viterbi decoder and digital resampler.

Responsible for the design and implementation of a complex (500,000 gate) SDH synchronisation status message handler and source prioritiser ASIC using 0.18 micron CMOS technology.

Spearheaded the design, specification and development of high-performance (5 Gbit/s data throughput, 311 MHz clock frequency) ASICs and FPGAs for this telecommunications start-up specialising in optical high-speed transmission systems for next-generation access networks.

Designed and implemented an ATM buffer manager and framer FPGA for a wireless broadband access system of a large telecommunications equipment manufacturer based in Sweden. Provided expert assistance in the development of customer’s system requirement specifications.

Responsible for the specification and development of a high-performance, FPGA-based ATM buffer manager and framer of a hybrid fibre-coax transmission system for an external customer. Participated in a pan-European project to develop a broadband access system based on Very high-rate Digital Subscriber Loop (VDSL) technology. Responsible for the design and realisation of two large ASICs and a fast Medium Access Control (MAC) protocol for a 1.2 Gbit/s ATM Passive Optical Network (APON) prototype.

Provided analogue and digital hardware expertise to the ATM switch development group of MET Commutation, including development of E1 and T1 PDH interface ports, an ATM F4 operations and maintenance (OAM) processor and a global synchronisation system for an ATM cross-connect.

Headed a team responsible for providing technical support to the specification, procurement and deployment of new digital transmission technology for BT's copper access network. Developed hardware and DSP software for some of the world’s first High-rate and Asymmetric Digital Subscriber Loop (HDSL and ADSL) transmission system prototypes.