krbaker.comKevin Baker

Kevin Ray Baker 3015 Fieldview Drive Murfreesboro, TN 37128 (615) 895-5543 (home) (615) 305-7860 (cell) kr.baker@comcast.net Download as Word document Objective: Seeking a position within the realm of embedded systems/electronic product development with opportunity for growth and advancement Experience: 1988 – 2024 Principal Electrical Engineer, Cubic Transportation Systems, Tullahoma, TN Responsible for hardware and software design of modular automatic revenue collection equipment, surveying equipment, and navigational mapping equipment, as well as some IBM PC programming to support product testing. Responsibilities also include other product/circuit design, manufacturing support, circuit/data analysis, peer reviews, engineering documentation, proposal estimates/support, proposal contract review, obsolescence mitigation, EMI/RFI suppression to pass FCC requirements, vendor support, printed circuit board layout (familiar with EAGLE PCB) and some light mechanical design. Some project management experience and leadership skills. Self-motivated and able to prioritize, manage and schedule tasks with minimal supervision. 2 U.S. Patents: #5,241,360, #6,739,444 1987 - 1988 Project Engineer, Valley International, Nashville, TN Responsible for design of professional analog audio equipment, p.c. board layout, drafting, documentation, some mechanical design and final product specifications. Consultant to Cubic Precision, Inc. 1982 - 1987 Design Engineer, Cubic Precision, Inc., Tullahoma, TN Responsible for hardware and software design of surveying equipment and navigational mapping equipment, manufacturing support, limited mechanical design and minor drafting. Education: 1997 R & B Enterprises Electro-Magnetic Compatibility” (Course on EMI, RFI and Transient Prevention/Protection) 1991 Learning Tree International "Hands-On Programming in C" 1979-1981 Tennessee Technological University, Cookeville, TN Major: Electrical Engineering (Courses included Calculus, Chemistry, Fortran and English) Hardware Skills: Analog signal processing, linear and switching power supplies, electro-optics including high-sensitivity avalanche photodiode receivers, limited RF design, phase-locked loops, battery chargers, digital logic, microprocessor/microcontroller design, battery-backed memory, communications interfacing, magnetic card readers, coin/bill acceptance, analog computation, sensor design, ESD protection and pcb layout. Software Skills: Real-time operating systems for embedded microcontrollers, state machines, interrupt driven i/o, multi-tasking, floating point math at assembly language level, RS232/RS485 serial communications, interfacing, custom libraries, graceful recovery from ESD/brownout, etc. Languages include compiled BASIC, PL/M and assembly language for 8048, 8051, 6800, 68HC11, Z80, 8080/8085, 80x86, 6502, 80C251 families of microprocessors/microcontrollers. Microcontroller/Microprocessor Experience: Intel: 8080/8085, 8048, 8051, 80C51FA/B/C, 80C251 Motorola: 6800, 6801, 6803, 68HC11 Hitachi: 6301 Philips: 80C451, 87C748/749/750/751/752 Dallas: 80C320 Siemens: 80C537 Zilog: Z80 Mitsubishi: M50734 Project Summary: Implementation of SAE J1708/J1587 standard for Heavy Equipment network for Houston Metropolitan Transit Authority (s/w) Design of Mass Memory board for bus farebox for New York City Transit Authority; consists of battery-backed static RAMS with a microprocessor controlled smart charging circuit with switching power supply (h/w & s/w) Design of coin sensor using properties of inductance (h/w & s/w); Patent #6,739,444 Design of standalone bus fare acceptance/processing unit Design of ticket validator that accepts tickets, prints on both sides and validates ticket Various software design for Farebox, including bill acceptance module, coin acceptance module, magnetic card read/write unit, and master controller module Design of high speed optical probe for retrieving financial records from farebox Design of smart display module for magnetic ticket processing unit for Chicago Transit Authority (s/w) Design of smart high-resolution optical encoder system (h/w & s/w) Design of laser-based distance measuring device; U.S. Patent #5,241,360 (h/w & s/w) Design of LED-based distance measuring device (h/w & s/w) Design of multiplexed radio-modem controller for navigational measuring device (h/w & s/w) Design of PC serial interrupt software routines to guard against noise from multiplexed radio modems located behind ships Design of interface to third-party depth sounders (h/w & s/w) Design of interface from distance measuring device to third-party theodolites (h/w & s/w) Design of software modifications to third party equipment Design of PC-based card magnetic read/write/verify unit for use in Canadian transit authorities (h/w, s/w & PC s/w) Design of distance measuring device used by the U.S. Army in field operations (h/w & s/w) Design of test fixtures for Service Department and Manufacturing usage Design of digital audio prototype Design of low-cost professional audio equipment (compressor/limiters, gates, de-essers); control circuitry consisted of complex analog computation modules Redesign of power control board that failed FCC Class A emissions limits to pass Class B Consulting, Home Projects and other skills: Design of quick-charger for battery-operated home-bound prisoner monitoring device (h/w) Design of software to interface to third-party equipment (s/w) Design of custom PL/M libraries for the Intel PL/M compiler to take advantage of specialized hardware or limitations in various 8051-family parts Design of various audio devices LAN experience with complex home network with print servers, repeaters, etc. Various confidential embedded control projects Advanced knowledge of pc-based audio signal processing and mixing References Available Upon Request Examples of my work: (click on image to enlarge) Ticket Validator (prototype) Half-bridge driver (5V-32V) with dead zone Power distribution module Coin sensor Motor control and sensor interface for ticket processor Battery fast charge controller/monitor Interface for coin sensor J1708 physical interface Configurable alarm Email regarding passing FCC emissions testing Modified Roland Alpha...