24872 Sandflower Court
Dana Point, CA 92629-1918 USA
vox/fax : +1.949.661.6932

Project Experience

Developed hardware for product which routes optical audio signals between a PCI card and rack-mounted audio I/O hardware.
Designed hardware, 8051 firmware, and Windows application for a software development system for a DSP IC.
Developed hardware, firmware, and software for automated production test systems for mixed-signal ICs.
Developed hardware and firmware for a product line of USB-to-audio and USB-to-MIDI interfaces.
Designed and implemented PIC firmware and DSP code for flattening frequency response of loudspeakers. Implemented an automated system for measuring and calibrating speakers on the production line.
Designed audio reverberation DSP algorithms for a signal processing product line.
Specified and designed firmware for a MIDI-controlled drum sound module.
Specified, designed, and implemented digital hardware and firmware for automation system for mutes on a 24-channel mixing console (8051).
Implemented, maintained, and documented software (C Language) for 2-channel audio direct-to-hard disk recorder.
Implemented digital signal processing algorithms for scaling raster images.
Developed a high speed optical system for golf applications. Project included digital and analog designs, optical system design, firmware development, USB driver development, and application development. Developed DSP software, image filter and analysis software, and computational algorithms for calculating and predicting ball physics.
Developed an audio effect sound processor. Designed all digital and analog electronics. Developed firmware for 8051 uC and DSP algorithms for a variety of sound effects. Performed all industrial design and mechanical design, including creating complex plastic parts and assemblies using 3-D software, created solid models, specified processes and ordered prototypes from Rapid Prototyping houses. Selected materials and mechanical components for products.
Developed a series of PCI cards to perform real-time digital audio recording to hard disk. Designed an FPGA (Xilinx) for data synchronization between different digital formats. Wrote diagnostics for PCB production.
Designed a programmable electronic control module. The stand-alone unit is programmable via a serial interface with a PC, also has a CAN interface for automotive applications. Developed all firmware and software needed to download control algorithms and upload data. Has on board data logger. Interface included high current fuel injector drivers (DC/DC converter), analog IOs, and thermal couple and pressure inputs. Flexible software was developed to allow for easy modification of control algorithms in firmware.
Developed an analog measurement system, programmable via serial interface. Designed all electronics and PCB layout. Developed all firmware and PC software.
Developed a linear high current voltage supply, with high accuracy (16bit) level control and current monitor. The design was modular with full fault detection and protection.
Design a switched mode high current, low voltage DC/DC converter, using current mode, feed forward topology. Design was modular with full fault detection and protection.
Developed a high bandwidth, and high accuracy board. The modular design has adjustable level outputs with t_r< 200psec. and digital inputs capable of detecting sub 1nsec. pulse width with data rate > 500 MHz.
Designed a high accuracy (16bit) analog measurement system (voltage and current) for the above card. Responsible for detail PCB layout, characterization and bringup.
Managed an analog ASIC development effort for a timing generator IC with < 40psec. resolution and 5 psec jitter and accuracy. Characterized the IC using high speed analog equipments.
Developed a high speed sampler system capable of digitizing bandwidth > 1GHz. Hardware design included analog front end ( t_r< 200psec ), digital capturing and storing circuits, and an FPGA (Actel) design to sequence the digitizer.
Developed COM DLL and Windows USB Audio driver to support Steinberg ASIO interface with the proprietary Audio device. Researched Kernel Streaming and user-mode streaming technologies including DirectShow.
Developed Internet Search Engine using the company's proprietary Natural Language Processing (NLP) technology, using statistical approaches to NLP. Designed customer�s Server-Client architecture, utilizing concept of the domain of servers with load balancing.
Developed customer�s Server-Client libraries, using parsers built with Flex to parse original protocol messages and compatible with both Windows and Unix operating systems. Communications were based on Sockets API. Researched approaches based on Remote Procedure Call (RPC) and Remote Method Invocation (RMI). Developed customer�s Active Server Pages (ASP) component, which utilized the Client library, and Windows NT services, which utilized the Server library.
Developed the installation programs, utilizing InstallShield and custom DLLs.
Developed Search API, which wrapped the customer�s core Search technology, and the user interface administration utilities for the Search Engine components configuration.
Analyzed face recognition algorithms (Active Shape and Active Appearance models) developed in Manchester University (England). Converted face recognition software from UNIX/GNU/g++ environment to Windows/MS Visual Studio/C++. Developed software to load facial images, mark face features and morphing them into template face with Macromedia Flash.
Developed image processing and recognition software for the proprietary high-speed camera, and the Bulk USB driver to acquire images from the camera in Windows 98. Wrote additional software to control a motion controller, used for calibration of high-speed cameras.
Developed 3D engine for Real Golf Simulator. The Simulator used the high-speed camera and the putting device. 3D engine used Direct3D Immediate Mode. Developed math model and software for golf ball rolling and collision. Integrated Java image processing program with ActiveX communication control.
Developed speech-to-text and text-to-speech interface for utilizing MS Speech SDK.
Developed 3D rendering with OpenGL for the customer�s CAD/CAM products Esprit-W (as ActiveX control) and Esprit-X (built-in). Created the Direct Numerical Control utility for Esprit-W and Esprit-X, and prepared localization concepts for Esprit-W. Developed DLL to print-plot 2D and 3D OpenGL images, and supported DXF files converter.
Developed Internet games: �Fief Quest�, �Warlords�, and �Planet-Net�. Games used UNIX-based server and Windows-based client. Created Internet Socket C++ Classes for Windows and UNIX for Internet applications.
Customized SBT accounting Software, and Z-Bake accounting software, and developed database applications (technological and accounting systems).
Designed complex electromechanical test systems for an OEM equipment manufacturer. Work included all stages of design from concept to computerized solid models of final product; created drawings per ANSI Y14.5 and BOMs. Designed welded and machined cardcages and frames, sheet metal covers, precision interfaces, molded and formed plastic parts, which included scheduling, material and component selection, coordination with vendors and customers, and assisted Manufacturing with assembly integration and sustaining work. All designs were made in 3-D using SolidWorks software.
Product design included design, stress and fatigue analysis of machinery equipment for food processing industry.
Designed, tested and evaluated complex mechanical and electromechanical devices and systems.