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«Lee Felsenstein 2460 Park Blvd. #1 Palo Alto, CA 94306-1917 (650)814-0427• lee • fax (650)322-2881 Technical History Training ...»

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Lee Felsenstein

2460 Park Blvd. #1

Palo Alto, CA 94306-1917

(650)814-0427• lee@fonlyinstitute.com • fax (650)322-2881

Technical History

Training and Education

At age 12 I was given an uncompleted correspondence course for radio and TV repair

(DeVry Technical Institute). This, along with earlier radio experimentation, was my

introduction to electronics. I learned it well enough to go into business briefly at age 17

doing repair.

Product of Philadelphia public schools 1950 – 1963. Graduated from the elite Central High School (219th class) Jan. 1963. Enrolled in College of Engineering, University of California, Berkeley Sept. 1963 in Electrical Engineering (General curriculum). Joined Cooperative Work-Study Program in Engineering 1964.

After a hiatus 1968 – 1971 returned to Berkeley to complete BSEE degree. Graduated June 1972.

Employment Demonstrator, Franklin Institute Science Museum, Philadelphia 1963. Ran “Progress of Computation” exhibit featuring UNIVAC-1 computer operating behind glass.

Co-operative Work-Study Program, College of Engineering, UC Berkeley, 1964 - Engineering Aide, NASA Flight Research Center, Edwards CA. Performed component vibration tests. Designed simple analog transistor circuits to aid in testing.

1965 - Lab Helper, School of Optometry, UC Berkeley. Designed, built and debugged circuitry used in physiological optics research. Designed vacuum-tube operational amplifiers and pulse-shaping circuitry. Co-inventor of US Pat. 3,453,437 “Automatic Photoelectric Keratometer”.

1966 - Technician, Berkeley Instruments, Berkeley, CA. Performed temperature tests on electronic subassemblies. Designed and built transistor pulse-timing circuits to alert operator to out-of-spec operation.

Volt Technical Services – summer 1967. Contract employment Draftsman, Raytheon Edex, Mountain View CA Circuit analyst – Consultronics, Mountain View, CA. Analyzed radar circuitry for failure modes.

Junior Engineer, Ampex Inc., Redwood City, CA 1968 – 1971 Designed analog transistor circuitry for high-speed tape duplicators. Designed Lee Felsenstein resume 1/7 1/14/2013 high-power, high-purity bias oscillator, oversaw transfer to production, performed field service and analysis of operation.

Maintained design of computer interface section of large-scale, minicomputer- controlled audio/visual random-access information retrieval system. Designed operational amplifier filter circuits, TTL logic, debugged and documented designs. Wrote assembly- language test programs for DG Nova minicomputer.

Engineer, Resource One, Inc. San Francisco CA 1972 – 1973. Assisted in installation and maintenance of SDS-940 mainframe computer. Designed and constructed modem line interface unit, designed and constructed self-adjusting modem circuitry, repaired Teletypes, performed mechanical design for disc channel interface, constructed Teletype sound enclosure. Worked with discrete transistor electronics, IC active filter and phaselocked loop circuits.

During this time I became a member of the personal computer hobbyist subculture, which gathered periodically to discuss the possibility and future form of the personal computer.

Volt Technical Services, 1974. Worked at Iomec, Inc., Santa Clara CA. Designed standalone tape cartridge data storage device and constructed a prototype.

Self-employed dba LGC Engineering 1974 – 1979. Performed contract engineering


Design and prototype of a pegboard-to-serial data converter for display of graphs on terminal. TTL, UART and RS-232 circuitry.

Debug circuitry for a daisy-wheel printer interface. TTL, UART and NMOS (4004) CPU technologies.

Develop and self-publish a specification for modular personal computer (“Tom Swift Terminal”).

Design of the first alphanumeric video display for personal computers (VDM-1, for Processor Technology Corp., 1975). LS-TTL, NMOS static memory, RS-170 video output analog circuitry.

Design of the first computer incorporating integrated video, communication, tape storage and S-100 bus expansion (Sol-20, for Processor Technology Corp., 1976).

Interim engineering manager for Processor Technology Corp. 1976- 1977.

Supervised development and documentation activities.

Design and construct a large-scale digital video-processing system (for Etra Technology Research Associates, 1978 – 1979). ECL, STTL, high-speed data file RAM, delay-line clock compensation.

President, Golemics, Inc. 1979 – 1981. Managed and performed design for a contract electronic product development company.

Designed the first portable computer for mass production (Osborne-1, for Osborne Computer Corp., 1980 – 81). LS-TTL, NMOS peripheral chips, NMOS dynamic RAM, product integration.

Founding board member of Osborne Computer Corp.

Provided engineering services to Osborne Computer.

Lee Felsenstein resume 2/7 1/14/2013 VP Engineering, Osborne Computer Corporation, 1981 – 1983.

Helped put Osborne-1 portable computer into production. Helped solve production and quality-control problems. Investigated technologies for future products.

Performed architectural design of follow-on product (Osborne Executive). Negotiated with five Japanese companies to develop approaches to laptop computer.

Promoted to R&D Fellow 1982.

Osborne Computer Corp. entered Chapter 11 bankruptcy in Sept. 1983.

President, Golemics, Inc. 1983 – 1992. Managed and performed electronic design for an electronic product development company. Between its founding and 1992 Golemics

performed on 50 projects, including:

Complete PC-compatible portable computer, including multi-format video display, hard disk controller, and ROM-BIOS firmware. Assembled a team of six inhouse and ten external engineers to carry out the development.This design was fully deterministic and designed for implementation through VLSI. Technologies included ALS TTL, static and dynamic RAM, hybrid STTL modules, system integration. Ten prototypes were built and delivered to client Oki Electric Co., Ltd., 1983 – 1984.

Designed and built plasma panel controller used to demonstrate full PC-DOS compatibility of OKI plasma panel display to Compaq Computer Company, resulting in design win for OKI in Compaq designs. For Oki Electric CO. Ltd., 1984.

8-channel RS-232 Multibus interfaces and token-ring Multibus interface for Britton-Lee database engine (for Britton-Lee Inc., 1985 – 1986).

“Workstation on an ISA board”, using shared memory to store a 300 dpi image, display it at 150 dpi on a vertical display, and printing the bitmap on a Canon laser printer. For Upstart Corp., (a startup of which I was a founder) 1986 – 1987.

Demonstration module for TI speech synthesizer chip. Included housing design, mechanical design, and PCB design. For Berkeley Speech Technology, 1990.

Designed the first demonstrated wearable computer, using head-mount virtual display and incorporating a CD-ROM. For Reddy Information Systems, NY, 1990 –

1991. Implemented a version of previously patented force-operated cursor controller (US Pat. No. 5,012,231). While demonstrated at the 1991 CD-ROM Show and Exposition, the device was not taken into production. Altera MAX1000 FPGA custom display controller, CD-ROM, switching power regulator, mechanically swept LED virtual image display.

Member of the Research Staff, Interval Research Corp., Palo Alto CA, 1992 – 2000.

Tools used: ORCAD Capture, PADS-PCB layout, Tektronix DSO, First researcher hired at Paul Allen’s R&D laboratory. Participated in planning for

–  –  –

Portable multi-channel high-precision data logger with networking capability.

Game board having 2D pattern of contacts allowing an electrical circuit to be maintained at all times to a sliding counter.

Real-time video processing system for edge detection. FPGA, PLD sync generator, CMOS line buffer memories.

Breath-sensitive 2D sensor for an art project, subject of patent. Used discrete transistors as low-cost temperature sensors.

“Pocket Watch” video display for wearable camcorders. Developed analog polarity-equalizing circuit.

500-watt servo amplifier using high-power operational amplifiers. Burnout problems were solved by designing a variable-transconductance amplifier and tuning it to match the transmission-line characteristic impedance of the motor cables.

Crystal-locked motor controller for rotary camera positioner.

Served as engineering liaison to an Interval spinoff company. Traveled to England to transfer technology of magnetic 2D position and identity sensor. Advised and assisted spinoff company Managed a prototype construction run which allowed them to show product at the Toy Fair reliably.

Interval Research was closed by Paul Allen in April 2000.

President, Golemics, Inc. 2000 – 2001 Designed and built an image capture system utilizing electrostatic pickup on a large grid array of electrodes, receiving 100 KHz signal by homodyne detection. Wrote a complex machine-language program for the PIC-based controller. Designed all printed circuits and debugged. For Aura Imaging, Redwood City 2000 – 2001. CMOS logic and switches, PIC16C7X embedded CPUs, phase locked loops, quadrature homodyne signal detection.

Sr. Electrical Engineer, Pemstar Pacific Consultants, San Jose CA 95012. 2001 – 2005 Tools used – ORCAD Capture, ORCAD Layout, Microsoft Project, Microsoft Office, Tektronix DSO, H-P spectrum analyzer, DVM.

Helped bring up Helmet Interface Adapter (HIA) for “Land Warrior” wearable military information device. Designed audio test board.

Handled all electrical engineering tasks for medical product development (for Natus, Inc., 2002 – 2003). Designed and both performed and supervised layout of five PC boards. Worked as part of a four-man team to solve packaging problems as well as signal integrity problems.

–  –  –

Designed and tested circuitry for magnetic port locator for use at 10 cm depth.

Concluded that such depth presented insuperable obstacles to magnetic method.

Designed and tested ultrasonic device for port location at 10 cm depth.

Demonstrated operation, but project was killed by the client.

Took over responsibility for electrical work on tablet computer port expander and dock. Solved difficult ESD problem through innovative grounding technique of PC board. Managed the agency testing of the device. For Motion Computer, 2004-2005

–  –  –

Pro Bono, for Jhai Foundation, San Francisco CA 2002 – 2003 Designed Jhai PC Remote Village IT system for installation in remote rural locations in developing world. This system was an embedded PC running Linux and VOIP software and communicating with relay stations using focused-beam Wi-fi.

Environmental constraints were severe (40C ambient, 100 percent humidity, dust) and low-power operation was required. This device became known as the “Pedal-powered Internet” due to incorporation of a bicycle-powered generator. With the help of volunteers I raised funds on the Internet to finance the effort and traveled to Laos in Feb. 2003 to attempt installation. A disk crash aborted that effort, but the volunteer effort continued development and today installs such systems in Africa (Inveneo, San Francisco CA).

Named as a Laureate of the Tech Museum of Innovation (San Jose, CA) in 2003 for this effort.

CTO, Fonly LLC, Palo Alto, CA 2005 – present.

Tools used – Altium Designer schematic entry and layout, PADS-PCB layout, ORCAD Capturte, Microsoft Project, Open Office, AVR Studio assembler code development, Tektronix DSO, H-P Spectrum Analyzer, signal generator, DVM.

Performed development of “Soundpaper” system for creating and reading 2D barcodes containing compressed speech (for LTT LLC, 2005 – 2006). Assembled a team of consultants as needed, managed the project and performed electronic development.

Client terminated project due to lack of funds, but the outline of the solution was created and the recording section completed. Technologies included DSP chip, video sensor chips, thermal transfer printers, audio compression and image recognition and processing.

Performed upgrade of design of a pharmaceutical piston extruder device, moving from a hard-wired controller to an embedded processor design. Managed the project, specified and designed the controller embedded computer, wrote software specifications and flowchart, subcontracted mechanical work and software development to outside Lee Felsenstein resume 5/7 1/14/2013 contractors, designed user interface and purchased parts. Performed system assembly including wiring harnesses, debug and checkout. Wrote operating procedure. For Talima Therapeutics, Santa Clara, CA, 2007.

Performed reverse engineering and mechanical drawings as required to duplicate pneumatic piston tamper used in pharmaceutical manufacturing. Performed assembly and wrote operating procedure. For Talima Therapeutics, San Carlos CA 2007.

Served as sole electrical engineer for a startup company (EarLens Corp., Redwood City CA, July 2007 – April 2009) engaged in development of a radically new hearing aid. Performed circuit design, miniature PCB design and assembly, performed debug and component testing, invented new method of audio data transmission (patents issued) and developed electronic devices for testing prototype transducers.

Developed prototype of an audio sequencer intended as a wearable training device for autistic children. Device used an AVR microcontroller to record and play back sound files from I2C EEPROM chips in varying time patterns. For Davis Research Foundation, Burlingame CA, 2009.

Designed and built hand-made protoype of 6.49 MHz RF amplifier for research into parapsychology. Reverse engineered Bulgarian design from publication using currently-available parts. For Institute of Noetic Sciences, Palo Alto CA, 2009.

Designed, constructed and delivered test fixture for TOW missile controller CPU board (1980 vintage) working from schematics and reverse-engineering firmware from test units. Assembled a team of two programmers to write test code (TI 9900) and control code (PC – C language). Performed all hardware design and debugging functions. Wrote detailed test procedure. For Data Science, EL Cajon, CA 2009- 2010.

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