Thomas Heck Email & Phone Number

League City, Tx, Us

Reading, Ma, Us

• Designed our first product branded “Terminus”. Capabilities included cellular communication, Embedded Python, SPI, GPIO, UART and automotive compatible switching power supply.• Designed a line of Plug-In cellular terminals that enabled our customers to embed cellular communications into their PC boards and circumvent the costly ($20k+ GSM/UMTS, $50k+ LTE) carrier certification process. Product offering was targeted to small customers/start-ups allowing them to compete in the global M2M market. Features include Cellular radio(GSM/EDGE/UMTS/HSPA+/CDMA/EVDO/LTE), GPS, SIM socket, and high efficiency switching power supply.• Designed a Linux SBC that incorporated the Janus Plug-in series radios with standard PC interfaces including 802.3 10/100Ethernet, USB 2.0 Host and Device ports, RS-232 Serial ports, RS-485, CAN and GPIO (Digital and Analog).• Designed a Cortex-M4 microprocessor based product for applications that required embedded standalone C application but did not require the power of a Linux based O/S. The product was designed around the Janus Plug-in series radios. Features included OTG USB, RS-232, RS-485, CAN, Accelerometer and GPIO (Digital and Analog).• Hardware designs including GSM/EDGE/UMTS/HSPA+/CDMA/EVDO/LTE Modules, GPS, Cortex/ARM9/8051 Micro-Processors, CPLDs, Switching Power Supplies.• Experience with Embedded Cellular Modules From Telit Wireless, Nokia, Siemens and Sony Ericsson.• Responsible for product certifications. Including documenting design procedures and lab requirements insuring our productsare lab ready. Company lab liaison for current projects at the test and carrier labs.• Technical representative at trade shows and customer sales calls/visits.• Design tools: OrCAD/Altium Designer and Linear Tech LTpowerCAD II.• Software tools: Visual Basic, Keil uVision (8051/Arm Cortex) microprocessors, AVR, Eclipse and Excel, Buildroot.

Clarksburg, Maryland, Us

• Design of custom telemetry solutions for a wide range of applications (DOT/Vending/Multi-Gateway).• Custom solutions requiring Customer interaction, Creation of Design Specification and Multi-Phased Proposals.• Execution of Mutli-Phased Projects requiring project management to meet customer exceptions.• Hardware designs including GSM/CDMA/Satellite Modules, GPS, Micro-Processors, CPLDs, Switching Power Supplies.• Experience with Embedded Cellular Modules From Nokia, Siemens and Sony Ericsson.• Design experience with Ethernet, USB, UART, I2C and SPI.• Developed Test and Measurement specifications for internal manufacturing.• Worked with internal T&M department to implement custom product test hardware and software solutions for our manufacturing facility.• Design characterization/verification including environmental testing and by design calculations.• Maintained design/factory documentation within a ISO 9001 system.• Assisting customers with GSM/PTCRB and AT&T carrier approval. Including isolating RSE and RX Sensitivity failures within a Screen Room. Solved issues arising from noisy third party circuits to improperly implemented PCB layout including Switching Power Supplies, Segmented Ground Planes, Insufficient Vias, Filtering of Conducted and Radiatedinterfering signals and need of RF shielding.• CPLD/FPGA Synchronous logic design and simulation. Including inclusion of Asynchronous signals into common clockdomain.• Technical representative at trade shows and customer sales calls/visits.• Design tools: Pspice, OrCAD, Xilinx Foundation IDE (CPLD/FPGA), Active-HDL (VHDL).• Software tools: Visual Basic, Keil uVision (ANSI-C) for 8051 microprocessors, Excel.

Stratum Timing Products)• Design of Stratum 4 multiple reference timing modules used in SONET fiber optic networking equipment.• Responsible for PLL loop design to meet Telcordia MTIE and TDEV specification during reference phase/frequency events.• Specified factory test and measurement specifications required to meet documented product specifications.• Maintained design/factory documentation within a ISO 9001 system.• CPLD/FPGA Synchronous logic design and simulation. Including inclusion of Asynchronous signals into a common clock domain.• Technical representative at trade shows and customer sales calls/visits.• Design tools: Pspice, OrCAD, Xilinx Foundation IDE (CPLD/FPGA), Active-HDL (VHDL).• Software tools: Visual Basic, Keil uVision (ANSI-C) for 8051 microprocessors, Excel.

• VCXO / VCO oscillator development.• First project consisted of isolating a VCO design issue that resulted in a shipping delinquency of 50k pieces. Worked with end customer to solve temperature performance issue and implement a design change to get production back on schedule.• Developed VCO products for use in a Fortune 500 telecommunications company’s cable services distribution equipment.• Design tools: Pspice, OrCAD.• Software Development using Visual Basic to create custom automated test software to characterize oscillator performance over all operating conditions (Supply, Temperature, Control Voltage and Output Load).