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Forensic Investigative Electrical Engineering Expert Witness

Provides Opinion & Testimony In:

Engineer, Electrical Engineer, Electrical Engineering, Forensic Investigative Electrical Engineering, Patent Infringement Analysis, Patent Claim mapping, Patent Claim Analysis, Patent Claim Mapping, Intellectual Property, Product Teardowns, Reverse Engineering, Failure Analysis, Fire Cause, Fire Origin, Electronic Electrical Hardware Design, Telecommunication Networks, Data Networks, EMC Design, EMC Test, ESD Electrostatic Discharge, FMEA Failure Mode Effect Analysis, Lightning Protection, Surge Protection, Surge Analysis, Thermal Analysis Evaluation, Thermal Analysis Testing, Electronic Design, Accidents, Cost Reduction Analysis, Defective Products, Design Engineering Hardware Software, Design Reviews, Dispute Resolution, Electrical Electronic Systems Products, Fire Cause Origin, Grounding, Lightning Damage Assessment, Nondestructive Testing, Personal Injury, Product Compliance Safety, Product Liability, Property Claim Services, Safety Codes Compliance, Environmental Testing, HALT Testing, automatic teller machine

OVERVIEW AREAS OF EXPERTESE:

Encryption: DES, 3DES, AES, RSA, MD5, SHA-1, others
High Speed Digital Design: XAUI, PCIe, Interlaken, 10GBase-KR
Network Processor Design: Marvell AX240, EzChip NPA, Intel IXP2400
Memory Design: DDR2/DDR3 SDRAM, QDR SRAM, NAND, NOR
Processor Design: PowerPC, Cavium MIP, Intel IXP425 (ARM v7)
Communications: Ethernet: 10GBase-X, 10/100/1000Base-T, SONET, ATM, RS-232, PPP, MLPPP, X86, DS-3, DS-1
Signal Integrity Analysis: Hyperlynx, HSPICE, Cadence Allegro PCI SI
CAD tools: Mentor Graphics DxDesigner, Cadence Allegro, OrCAD, PADS
Operating Systems: Linux, VxWorks
FPGA/CPLD Design: Altera, Xilinx, Lattice designs in VHDL and Verilog
Software: C/C++ for Linux device drivers and Hardware Abstraction Layer
Testing: EMI, ESD, Homologation, HALT/HASS, JTAG, BIST
Timing: IEEE 1588v2, Sync-E, SONET

PROFESSIONAL EXPERIENCE:

Private Company, Morrisville, NC October 2008 – October 2012

Senior Staff Engineer
Chief architect and principal hardware designer for Carrier Ethernet class aggregation and customer premises products.

Multi-10Gbps Carrier Ethernet Class Aggregation Product Family
Chief architect and hardware designer:  I was personally responsible for the hardware and system design for a 7-card chassis based product that supported 8 10GBase-X and 72 1000Base-X Ethernet interfaces.  I designed the NPU based distributed dataplane processing complex (using multiple Marvell AX240) that performed high touch Layer-2and Layer-3 packet processing with a combined bandwidth of 334MPPS.  I designed the 20Gbps dataplane interconnect used for card-to-card communication.  Additionally, I designed the system wide distributed control plane processing based on the multicore Cavium family of MIPs  processors. 

1 Gigabit Carrier Ethernet CPE Product Family for Ethernet transport over Private Company
Chief architect and hardware designer:  I was personally responsible for the control plane and dataplane main board design.  This product used a Cavium MIPs processor and an Altera FPGA for dataplane and control plane processing.  This product had a highly aggressive schedule: start-to-customer GA in only 9 months for a brand new design.

Private Company, Morrisville, NC October 1996 – October 2008

Principal Scientist
Security Clearance:  Top Secret
Founding partner in a startup corporation.  Principal hardware and system architect for a set of encryption products for ATM, SONET, Ethernet and IPSEC networks.

10 Gigabit Ethernet MACsec Product Line:  Chief architect, hardware designer, and FPGA designer for a MACsec, standard based, high performance Ethernet security encryption solution:  I designed a high performance 10Gbps Ethernet solution based on XFP transceivers, Marvel 10G PHY devices, Cortina 10G MAC devices and Stratix-II FPGAs. Personally responsible for the hardware design of the Ethernet encrytion devices including the security and host processor complex.  This design
uses Safenet developed Intellectual Property for MACsec encryption and KEYsec key exchange.  I was personally responsible for ensuring that the Intellectual Property developed, at four geographically remote locations, integrated smoothly in addition to designing the hardware and architecting the system.

OC-192 Type-1 SONET Encryption Product Line:  Team member and system architect of a 10Gbps Classified SONET encryption product line:  I was personally responsible for the hardware design of the 10Gbps SONET interface card and a 2.5Gbps SONET interface card.  The design included advanced PLLs for clock management,  Agere ASICs, and Altera Stratix-II FPGAs.  Additionally, I was responsible for the Verilog HDL design for four large FPGAs.

Gigabit IPSEC Gateway Product:  Chief hardware architect and designer for a multi-Gigabit IPSEC encryption product based on a dual IXP2400 Network Processor and VxWorks operating system:  I designed an embedded Network Processor based dataplane processing system with interfaces to QDR SSRAM, DDR SDRAM and Xilinx Virtex-II FPGAs.

Cost reduction team leader:  Chief architect and hardware designer for a cost reduction effort that reduced the CoGs of our encryption products by more than 75%.

ASIC design:  Team member of a three-man design team that produced a 250,000 gate ASIC for an OC-3c rate ATM encryption product. 

ATM encryption product:  Architect for an FPGA based ATM encryptor that operated at rates from 1.5Mbps up to 622Mbps full duplex:  As part of a startup, I was personally responsible for hardware design, FPGA design, PCB board design, as well as some software design.

Private Company, Research Triangle Park, NC. July 1995 – July 1990

PCB design research:  I was team leader of a research group that investigated transmission-line effects of printed circuit board design on high-speed digital signals. 
   
Central Office switching equipment design:  I was part of a group that designed Telco-class central office switching equipment. I was responsible for the design of the power subsystems and cable assemblies.

EDUCATION:

North Carolina State University, Raleigh, NC 1989
Master’s of Science in Electrical Engineering.

Rensselaer Polytechnic Institute, Troy, NY 1995
Bachelor of Science in Computer and Systems Engineering

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