 |
Introduction |
|
Work Experience |
|
Education |
|
Other Skills |
|
Biographical Information |
|
Personal Interests |
|
Contact Information |
After graduation, I joined Texas Instruments, Storage Products Group in Singapore as a Servo Design Engineer. My main role with TI is to develop DSP based servo control algorithms for DVD/CD ROM systems. Subsequently, I spend six months in Tustin, California to work on high speeds CD servo algorithms and integrate it to the firmware developed by the Tustin's team.
Basically, I am a self-taught servo engineer. My interest still falls in the areas like Signal Processing and Wireless Communications. I am comfortable with algorithms development and implementation in DSP firmware. The Modified Repetitive Control is one of the worth mention algorithm that I have done to attenuate the fundamental and the multiple of harmonics present in the tracking error signal of a high speed CD ROM drive servo.
| Oct'98 - Oct'99 | Research and Development Job (Full-Time) |
| Company | Texas Instruments, Storage Products Group, Singapore. |
| Designation | Servo Design Engineer |
| Responsibilities | Design and implement DSP based servo control
algorithms and firmware for DVD/CD ROM drive systems |
| Project | Involve in a 6 month project in Singapore
to develop servo algorithms and firmware for 4X/24X
DVD/CD. Involve in a 6 month project in Tustin, California, U.S.A. to develop algorithms and firmware for high speeds CD ROM drive servo. |
| Achievements | Develop and implement repetitive control
to reject rotation and harmonics frequency using learning
control. Develop and implement repetitive control to reject rotation and harmonics frequency using loop shaping. Develop and implement a calibration scheme to optimise servo loop due to the variation in the reflectitivies of optical discs. Develop and implement a media detection scheme for DVD single/dual layer, CD-R, CD-RW and CDROM discs. |
| Aug'95-Aug'96 | Research and Development Job (Full-Time) |
| Company | Defence Science Organisation National Laboratories, Singapore. |
| Designation | Technical Officer |
| Responsibilites | Implementation of control algorithms and develop
firmware in microprocessor based systems for military applications. |
| Project | Involve in 1 year military project to develop firmware and software in 80486 microprocessor base systems. Firmware includes the real-time operating systems interface and the communication protocol between host computers and sub-systems. Software includes the implementation of control algorithms and mission logic. |
| Achievements | Develop and implement the communication
protocol between host computer and sub-systems. Develop and implement the firmware code structure for the entire system. |
| Mar'95-Jul'96 | Information Technology Job (Full-Time) |
| Company | Applied Digital Systems Pte Ltd, Singapore. |
| Designation | Network Specialist |
| Responsibilites | Pre-sales and post sales support that varies from
site survey to installation and commissioning of various LAN and WAN systems. |
| Project | Involve in 2 a month project in Brunei to set up computer network and systems for the University of Brunei. Systems set up includes LANs, UNIX workstations and fiber optics backbone for the campus.. |
| Sep'96-Sep'98 | |
| Qualification | BEng, Electronics & Electrical Engineering (First Class Honours). |
| Insitution | University of Surrey, England. |
| Major | Wireless Communications. |
| Project | Implemented a DSP based Digital Modem |
| Jul'96-May'92 | |
| Qualification | Diploma, Electronics and Communication Engineering. |
| Insitution | Singapore Polytechnic |
| Major | Telecommunication |
| Project | Implemented a Transputer based Image Generation Systems. |
| Jan'84-Dec'88 | |
| Qualification | GCE 'O' Level. |
| Insitution | Nan Hua Secondary School |
|
Design and Implementation of signal processing algorithms in DSP. |
|
Design and Implementation of control algorithms in DSP. |
|
Proficient in the programming with several DSP platforms (fixed point and floating point) such as the TMS320C1x, C2x, C2xx, C5x, C5xx and C3x. |
|
Proficient in the programming with several microprocessor and micro-controller platforms such as 80x86, 6805, 6811, 8051 and 80251. |
|
Microprocessor systems design. |
|
RF systems design. |
|
Proficient with C/C++ and various assembly languages. |
|
Proficient with various systems design and simulation packages like HP EEsoft, Matlab and Simulink. |
|
Good networking knowledge of various operating systems like Windows NT, Netware and UNIX. |
|
Good communication skills |
|
Good team player. |
|
Music (Jazz, Blues and Guitar) |
|
Sports (Canoeing and Hiking) |
|
Travel and Backpacking. |
|
Computers |
For any additional information or comments contact the
following,
cnhj@hotmail.com
Back to Top
To go back click here < CNH >