Thomas Lau

IMAGR is a retail technology company leveraging AI and computer vision to build intelligent solutions for supermarket retailers. I helped to create a team of experts in developing computer vision based solutions to enable machine learning inference model to run on the edge. • Assist the Electronics and Mechanical engineers in all day to day aspects including hands on design where required • Lead all engineering aspects of the development of hardware product • Ensure the engineering team is sufficiently resourced • Evolve the company's processes to further product development speed, quality and efficiency. • Work closely with other senior management members with strategic planning and engineering decisions • Provide technical review on all aspects of hardware development to maintain product quality.

• Main designer for the G6-300 Petrol Payment Terminal System development. • High speed memory bus and security grid design • Provide advice on test system development and resolving manufacturing issues

● Designed and implemented the “Directional Fault Finder” using a pulse detection and current transformer for measuring electric fence pulse with voltage up to 12kV and maximum current of 200A. ● Developed range of radio modules based on the “Silicon Lab Si4xxx EZRadio” ISM band transceiver, PCB designed for both 433MHz and 868MHz variant. ● Simulated and designed a filter module for the FSK fence line signal using both passive LC resonators and active multiple feedback op-amp design. ● Implemented a half-bridge boot strap circuit for the FSK transmitter. ● Designed drivers and application such as the “FSK IQ modulator and demodulator”, “Fence Line ADC Measurement Module” and the “Message Error Correction Module” for the Silicon Lab ARM based EFM32 microcontroller. ● Responsible for project time-line estimation, software tasks backlog refinement and prioritisation, product V&V plan, project tracking and status reporting. ● Programmed test scripts in Python for product verification testing. ● Re-architected and revamped all of the production test systems with a universal test station based on latest National Instrument PXI chassis design with capital investment over $250,000. ● Designed test sequence and process module using Agilent VEE, Labview, and Teststand. ● Documented test results of product failures, prepared detailed technical reports, and made presentations to management to assist in resolving production issues to improve quality and reduce product failures.

● Directly responsible for the “Nucleus 5” behind-the-ear design for manufacturing process to ensure production target KPIs are met (production volume > 30,000 unit per year). ● Miniature multi-fold flex-rigid PCB design for the Nucleus 5 behind-the-ear main module. ● In charge of the lead free conversion program for the “Nucleus SP5”, “SP10” and “Freedom” range sound processors. ● Product verification and qualification. ● Team resources planning and project planning. ● Initiate and maintain issues logs, taking responsibility for identifying and coordinating resolution all systems integration issues.

● Lead engineer responsible for all electronics and firmware design of the Secure Keyboard Video Mouse (KVM) Switch. ● Responsible for the design of the Compucat proprietary bufferless keyboard. The bufferless keyboard uses a Xilinx XC9500 CPLD for scanning the rows and columns of the matrix and uses an Atmel ATtiny microcontroller for de-serialising the LED data stream. ● Designed and developed a DVI-D video multiplexer board with speed up to 2.25 Gbps using an Atmel ATmega8 microcontroller and Analog Device multiplexer switch. ● Perform research on the Software Defined Radio and report on the status of practical application of SDR systems for Compucat. ● Preparation of EMC, safety and environmental test plans and test procedures for the Secure KVM Switch. ● Preparation of PCB assembly instructions, test equipments and test procedures for production. ● Investigate the technical feasibility and providing cost estimation of developing new product ideas. ● Responsible for drafting wiring diagrams and liaising mechanical designers to finalise form and fit of the prototype assemblies.

● Designed and developed a stepper motor controller for controlling a continuous zoom thermal camera. The travel trajectory of the motors are pre-determined by a Texas Instrument TMS320F2812 DSP so that the object would keep in focus when zooming in or out. ● Responsible for the research, development and implementation of the 34x zoom 1/4" CCD camera. The camera uses a SONY ICX278/279 colour CCD and can be configured to output either PAL or NTSC format. ● Designed and implemented an active feedback aperture control system using an Arsape miniature stepper motor and Microchip PIC16C763 microcontroller to improve the white balance adjustment response time of the day camera. ● Responsible for designing and building test jigs for the 34x zoom camera and video multiplexer board. ● Locating design errors and submitting modification suggestions on the prototype designs including the Laser Range Finder, video multiplexer board, Cant and elevation sensors, day camera assemblies and interface control unit. ● Performed functional and environmental testing of the Sensor Unit to make sure product meets with all requirements. ● Designed and implemented an azimuth and elevation controller for controlling the Mount Stromlo satellite laser ranging observatory dome using a Microchip PIC18F microcontroller and Altera MAX 7000 PLD. ● Responsible for designing and developing firmware for the telescope dome shutter controller board. The firmware controls the shutter motors using a PID control loop feedback mechanism and make appropriate adjustment to prevent the shutters from colliding with each other.

● Research and developed a new inductive power transfer fish light charging system. ● Designed and implemented an A/D converter to provide an interface between a PLC and a horse heart beat monitor. ● Responsible for developing a RS422 communication bus to improve the performance and reliability of a supermarket security system. ● Sourcing and purchasing components, dealing with PCB manufacturing and assembling companies. ● Designed and developed a miniature RS-232 to RS-485 converter to improve the connectivity between different types of PLC. ● Integration, testing, fault finding and repair of various digital controller boards such as the automatic engine flushing controllers and remote data loggers. ● Responsible for the maintenance and store keeping of all electronic components kept in the warehouse.