Resume 6

OBJECTIVE:

Engineering and Design of Analog and Digital Electronics, Controls and Embedded Systems

Contract engineering and consulting services for the electronics industry. Objective area includes, but is not limited to, the Northeastern United States (CT, N-DE, MA, NE-MD, NJ, NY, PA, RI). Scope involves all phases of engineering, development and design of analog and digital electronic equipment, controls and embedded systems for industrial and commercial applications.

Responsible for Product Development, Consulting and System Engineering of electronic hardware and microprocessor or microcontroller based controls and systems for various clients.

This section has been prepared to illustrate capability and expertise in providing solutions for a wide range of applications. These highlights are a sample of typical projects. Due to the proprietary nature of imaging and other applications, and to space limitations, not all achievements have been included within this listing but can be demonstrated upon request.

• Designed a microprocessor based custom controller for a compression testing machine for the package testing industry. The system contained high speed digital and sensitive analog circuitry on a common printed circuit board. Analog sensing ranges were greater than 90db (1 bit = 1.6uv from strain gauge input). System included automatic calibration, range switching and x-y recorder output gain switching for force and displacement transducers. Operator input and feedback was from a custom membrane switch and display panel. Project included circuit and software design, printed circuit board design, enclosure packaging, front panel design, machine control interface and documentation.

• Developed custom software for a disciplined oscillator for the communications industry. System had to capture T1 and LORAN inputs, extract the reference using digital signal processing, mathematically derive the source standard and control a local ovenized oscillator. System had to manage and maintain up to four input references, perform switching upon qualification failure and manage aberrations such as phase jumps and intermittent inputs. The system would automatically configure according to the input and output cards present at startup and system operating parameters could be set and monitored from an operator input terminal.

• Designed development prototypes and various other multi-channel DSP based DSL modems for the communications industry. Involved design of I/O from ATM Utopia to DSP data pump, PLDs (programmable logic devices), AFE (analog front end) D/A I/O section, line drivers and telecom interface. Units operated in SDSL and ADSL modes.

• Re-designed controllers for a locomotive braking control system to improve system performance, noise immunity and reliability. Implemented mixed signal ground management to increase SNR of A/D conversion sections. System utilized 3150 Neuron network microcontrollers.

• Developed a microcontroller based telephone wiretap controller for the criminal surveillance industry, implementing an 8051 based architecture. Involved detecting and decoding telephone control signals, target and surveillance line isolation, data packing, protocol development, data encryption-decryption, communications and control from a remote database computer. Design had to meet FCC Part 68, be compatible with telephone line powering and include battery standby circuitry for remote pole mounted operation. Conceptualized and supervised firmware development with client personnel.

• Designed a 68HC05 based remote alarm controller for the security industry. Involved monitoring and control of switching supply, battery backup, output loads, terminators, wired and serial data link input commands. (UL)

• Developed and packaged a custom Industrial Panel Display for a NEMA 12 environment to convert and display inputs from a programmable controller.

• Designed a board level microprocessor control for a Breath Alcohol Analyzer incorporating a 6809 processor. System required non-volatile RAM, instrument I/O, communications and a printer driver.

• Microprocessor/controller architectures that may not have been mentioned in previous paragraphs but have been employed in designs include: Intel 80x51, 8085, 80x86, 8088&188, Motorola 680x, 680x0, 68HC05 series, NEC 1800 series and Microchip PIC series.

• Designed and developed a digital laser scanning system controller for the motion picture industry. System captured image data from a database computer over a parallel ECL interface, frame synchronized the data with laser scan circuitry and modulated the laser. Included provisions to adjust frame position from the start of scan and control the sequence of peripheral subsystems.

• Developed a high speed Memory System for entire MOD 300 board level distributed control product line. Involved interfacing 8206 Error Detection and Correction Unit and 8207 Advanced Dynamic RAM Controller with 68000 Microprocessor. System used 256K bit DRAM chips and included circuitry to enable full test under software control. The entire design effort was from preliminary data as actual memory and control circuit components were newly developed and unavailable at the time(1983).

• Designed a retrofit circuit to add separately adjustable bi-directional acceleration and deceleration ramps to an existing control circuit. Reference control was for a four quadrant regenerative drive for a warehouse stacking control system. Circuit had to detect reference going through zero to select appropriate ramp. Design was implemented by swapping existing board with custom designed board.

• Developed a high speed addressable Parallel Bus Interface to operate with twelve peripherals over forty feet of ribbon-cable. Bus was for redundant communications in the MOD 300 distributed control system (1985).

• Designed and developed a power monitoring and regulation control for the utility industry. System would monitor voltage and current on each side of a distribution transformer and control tap changes according to load and line conditions. Analog section required precision circuitry to maintain amplitude, linearity and phase accuracy from fundamental to the 31st harmonic. Included anti-aliasing circuitry for low sample rate signal processing, A/D and digital control logic. System had to meet surge, transient, oscillatory, voltage withstand and EMI susceptibility testing per IEEE C37.90 and C57.15. Entire system had to be electrically isolated from all I/O, database communications, and operate from -40 to 85C.

• Designed and packaged an A.C. power and heater control for a Wafer Washing Machine. Consideration had to be given to cross-talk between heaters, D.C. motor controls and computer equipment. Environment included deionized water and clean room conditions.

• Designed a computer control interface for an industrial pulsed laser power supply. Involved custom designed hardware interfaces to existing circuitry and control of optics implementing Multibus and C language programming. System was for an X-ray Lithography Stepper for the semiconductor industry.

• Designed and supervised construction of Slitter Control System. System interfaced and controlled D.C. motor controls, ultrasonic cleaners, laser bar code readers and printers, edge guides, tension controls, densitometers and a board level microprocessor based data collection system.

• Developed a microprocessor based Control System to replace IBM 72/73 AMA tape reader and interface with PDP 11/37 computer. Involved custom circuit design of optically isolated reader control and data interface, front operator panel, microprocessor bus and control interface, error checking, sequence checking, operator front panel interface, database communications and protocol development, packaging, software development and documentation. Firmware was developed in assembly language.

• Designed and packaged a CRT Test Stand. Involved computer and manual control of high voltage power supplies and low level metering equipment over IEEE488 bus and software development. Also involved custom circuit design and packaging of high voltage switching and interconnections, video drivers, deflection control and measurement, high voltage flashover protection, personnel safety interrupts and integrating various support equipment such as scanners, video generators, etc.

• Installed an iAPX286/10 based Intel System 310 with MULTIBUS and iLBX bus extension. Involved modification of multiuser, multitasking operating system, communications and networking, C language programming and user interface programming (1982).

• Consulting engineer to make recommendations for design and fabrication of an Advanced Prototype Belt Fabrication Machine. Involved microprocessor control of various process steps and linear positioning systems.

• Consulting engineer for a mass transit application. Client was having catastrophic field failures of an existing design due to high voltage transients in a passenger railway car control system and unable to determine the cause. Correlated failure data with circuit design review and determined component of probable cause. Customer service engineers at remote field site verified failed component was as proposed.

• Consulting engineer for a Coating Line at Oklahoma City facility. Involved application engineering various process controls including D.C. motor controls, laser inspection equipment, ultrasonic cleaners, programmable controllers and microcomputer distributed control systems. Electricals had to be in accordance with hazardous atmospheres. Worked closely with machine manufacturer.

• Consulting engineer for a Pilot Plant installation involving hazardous locations. Specified and supervised installation of vapor detectors, alarms and TLV monitors.

• Consultant to evaluate laser and circuit noise problems for a prototype protein digital storage device control system. Involved acquiring various waveforms, measurements, evaluating data and making design recommendations for photo-detector circuit, system signal routing and packaging.

• Consulting engineer to investigate intermittent failures in the memory portion of a distributed control system product. Reviewed system logic and performed a thorough timing analysis. Modified existing programmable logic terms to resolve a timing conflict that could be easily implemented on current field units and subsequent production systems.

• Imaging and Video:
  • Discrete Analog and Digital
  • Embedded Systems (board level, computer based )
• Instrumentation and Test:
  • Embedded Systems (µP and µC based, computer based )
• Communications, Telecom:
  • Embedded Systems (µP and µC based, board level)
• Transportation Industry:
  • Embedded Systems, µP and µC based
  • Consulting Services
• Signal Processing:
  • Discrete Analog and Digital
  • Embedded Systems, µP and µC based
• Industrial Control:
  • Discrete Analog and Digital
  • Embedded Systems (µP and µC based, board level)
  • Consulting Services
• Utility Industry:
  • Discrete Analog and Digital
  • Embedded Systems, board level
• Surveillance, Security:
  • Embedded Systems, µP and µC based

• Had entire project responsibility for developing an integral horsepower, 3-phase, variable frequency, A.C. motor control.
• Involved development, testing, debugging and packaging of high power A.C. and D.C. switching regulator supplies, digital waveform generators, analog and digital control circuitry, power supply design, V/F and F/V converters, heat sink design and packaging.
• Worked out packaging and initial printed circuit layout for PCB designers.
• Provided liaison with outside contractors and vendors.

• Involved on-site application engineering, system engineering, test and initial start-up of industrial process control systems including SCR and PWM regenerative D.C. motor controls, eddy-current drives, digital control equipment, process controls, D.C. stepper drives and programmable controllers.
• Combined the attributes of application engineer, sales representative and field engineer.

Involved on-site application engineering of industrial process control equipment.

• 2/71 - 1/73
  Responsible for application engineering, system quotations and sales for ten representative areas in Northeast United States dealing with industrial control systems.
• 9/69 - 2/71
  Responsible for field service engineers and over-the-phone troubleshooting for customers over the entire United States. Instituted and instructed customer product training school. Provided engineering support and field service start-up of industrial control systems involving SCR D.C. motor controls, eddy-current drives and related equipment.

Inertial guidance and aircraft landing systems test engineer. (Required security clearance)

University of California at San Diego, 1967, Electrical Engineering (NESEP).

U.S. Navy, "A" and "B" School, Aviation Electronics. Specialized in airborne communications and navigation equipment. (Required security clearance)

Attended, on a regular basis throughout the past 30 years, workshops and seminars in microprocessor design implementation techniques and various manufacturers equipment seminars. Currently taking review courses in preparation for P.E. Exam.

Ability to quickly absorb customer's needs and develop a solution, implement the most expedient method of engineering and design for the application and positively motivate personnel to accomplish tasks.

Member: IEEE, SBE, AES

Avocation: Photography
Interests: High-end Audio, Video and Tourism

Having over thirty years experience in the engineering, development and design of analog and digital electronic equipment, controls, embedded systems and software, and having dealt with a wide range of applications offers a significant contribution to the success of client projects.