Expert Details

Expert in Electronic Product Development

Expert ID: 718830 Wisconsin, USA

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Expert (pronounced road-re-an) has designed analog circuits that measure current or voltage signals from temperature, pressure, flow, and conductivity transducers. He has designed isolated, 4-20 mA current loop transmitters. The analog circuits provide inputs to or outputs from microprocessor-based controllers.

Expert has written assembly language programs for 8-, 16-, and 32-bit microprocessors. His primary experience is with the Motorola family of microprocessors that includes the 68HC05, 68HC11, 68HC16, 68000, and 68HC300 family of parts. He has experience with derivatives of the Intel family of microprocessors, Intel 8051, including the Zilog Z-80 and NEC V-25 parts. The programs Expert has written are for real-time control of a machine or a process.


Expert has developed cooling tower and boiler controllers that automatically dispense chemicals based on time-of-day, water flow, or measured conductivity algorithms. These controllers include self-test, self-calibration, and error-reporting capabilities. The controllers interface to a computer via optically isolated digital outputs, 4-20 mA current loops, or serial communications protocols.


Expert has developed MS-DOS based computer systems to record real-time data from temperature, pressure, flow, conductivity, and animal activity transducers. The data recorded by these systems were used to develop the control algorithms for microprocessor-based products and to verify the operation of these products.

Expert has developed electronic circuits to measure the conductivity of fresh water, pure water, and ion-exchange resin. These microprocessor-based circuits measure conductivity from 0.1 micro-Siemens to 10,000 micro-Siemens. A recent project included the design, development, and testing of a conductivity cell.

Expert has designed microprocessor-based products for use in industrial, agricultural, commercial, and consumer markets. Several of these products are battery powered while others are powered from a conventional AC line. The animal activity monitor Expert designed and patented operates for two years from one AA size lithium battery. Expert has extensive experience designing microprocessor hardware and software for 8-, 16-, and 32-bit microprocessors.

The scope of Expert's involvement in the design of electronic products includes the design and construction of engineering models (prototypes) and pre-production units. Expert tests these units for compliance with appropriate standards and customer requirements. He has evaluated prototypes as well as existing products to determine the cost to manufacture the product and the cost per feature.

Expert has designed electronic products which have been awarded ten U.S. patents and numerous foreign patents. He received royalty income from patents he owns and has licensed to other companies. He has studied patent claims to provide expert opinions in patent infringement lawsuits. He has testified as an expert witness at a patent infringement trial.


Expert completed the development of an RTD (resistance temperature device) input module for Allen-Bradley's SLC 500 programmable industrial controller. The module uses analog and digital (microprocessor) circuits to convert the resistance of an RTD to temperature. The module provdies high accuracy (+/- 0.5 C) over a wide range of temperatures (-200C to +850 C). In addition, the device works with 12 different types of RTDs. The algorithms used to convert RTD resistance to temperature comply with international standards for each respective RTD type (platinum RTDs, copper RTD, etc.) Expert also completed the development of an 8-channel, high-speed analog input module for Allen-Bradley's SLC 500 programmable industrial controller. The module measures current and voltage, using a 16 bit A/D converter controlled by a microprocessor, with an accuracy of better than +/- 0.1% over an operating temperature range of 0 to 60 C.

Expert developed a 3-axis magnetice field sensor that is optimized to detect slowing, moving, or stopped vehicles. The sensor's microprocessor is programmed with an algorithm that calculates deviations in magnetic field intensity while continuously compensating for circuit offset and gain variations.

He provided technical analysis of products as part of patent infringement lawsuits.He provided technical overview of electronic product design activity for a start-up company.

Expert may consult nationally and internationally, and is also local to the following cities: Chicago, Illinois - Rockford, Illinois - Aurora, Illinois - Elgin, Illinois - Waukegan, Illinois - Milwaukee, Wisconsin - Madison, Wisconsin - Green Bay, Wisconsin - Kenosha, Wisconsin - Racine, Wisconsin

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Education

Year Degree Subject Institution
Year: 1973 Degree: M.S. Subject: Biomedical Engineering Institution: Marquette University
Year: 1970 Degree: B.S. Subject: Electrical Engineering Institution: Marquette University

Work History

Years Employer Title Department Responsibilities
Years: 1974 to Present Employer: Undisclosed Title: President and Consultant/Design Engineer Department: Responsibilities: Expert designs microprocessor-based products that meet a customer's marketing requirements.
Years: 1973 to 1974 Employer: Kimberly Clark Title: Contract Engineer Department: Responsibilities: He implemented and validated a computer simulation of a pulp mill.
Years: 1971 to 1973 Employer: Marquette University Title: Teaching Assistant Department: College of Engineering Responsibilities: He taught computer programming (FORTRAN IV) to freshman engineering students.
Years: 2010 to 2011 Employer: Milwaukee School of Engineering Title: Adjunct Assistant Professor Department: Responsibilities: He taught an introduction to electrical engineering course to non-electrical engineering students.

Career Accomplishments

Licenses / Certifications
Expert holds a Professional Engineer license.
Awards / Recognition
Three consulting/design projects which he has completed have been featured in DESIGN NEWS.
Publications and Patents Summary
Expert has undertaken R&D projects which have produced fifteen U.S. patents and numerous foreign patents. He also has 3 published publications regarding electronic activity.

Additional Experience

Expert Witness Experience
Expert reverse engineered and analyzed microprocessor-based industrial control products for patent infringement litigation. Expert testified as an expert witness at a patent infringement trial.
Marketing Experience
Expert has successfully marketed the rights to five U.S. patents and numerous foreign patents.

Fields of Expertise

analog circuit, analog circuit application, analog circuit design, circuit design, assembly language, microprocessor, microprocessor circuit, 68000 microprocessor, automatic control, automatic control device, microcontroller application, computerized analytical instrumentation, conductometric analysis, digital circuit, digital control electronics science, digital control system, electronic product prototype, electronic product technology innovation, combined analog/digital circuit, temperature sensor, magnetic field measurement, patent claim chart, patent claim construction brief, Doctrine of Equivalents, canons of claim construction, patent prosecution, patent specification, Markman hearing, patent claim construction, claim (patent), induced infringement, contributory infringement, direct infringement, literal infringement, patent infringement, compliance testing, real-time measurement, programmable chip, circuit trace, embedded system software development, resistance temperature detector, automation, metal detection, analog output, serial communications, analog switch, electronic breadboard, analog circuit simulation, microprocessor-controlled, electric current measurement, siemens, bistable multivibrator, computerized data acquisition, assembly language programming, analytical instrumentation design, agricultural electronic equipment, electronics, technology innovation, data communication protocol, programming language processor software, computer language, electric motor control, electronics engineering, new product development, computer-aided design, electric circuit design, energy-efficient process control system, computer-aided engineering, read-only memory, random-access memory, personal-computer computer-aided-designing system, analog-signal processing, digital circuit design, embedded computer system, prototype, international licensing, electronic cable, analog signal, passive electronic element, programmable controller, legal patenting, Microsoft disk operating system, electronic device, resistor, electrical property, computer hardware, thermistor, electric switch, solid-state switch, software testing, software engineering, sensor, semiconductor diode, relay, pressure transducer, optical sensor, on-line chemical analysis, microcontroller, magnetic sensor, Hall effect transducer, electronics testing, electronic display instrument, electric circuit, data storage system, cooling tower, electrical conductivity, computer software, computer interface, computer application process, compiler, capacitor, assembler

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