About



From my Linked In acct, The screen caprure may reveal my uniquely skill set built up  from my unique aggressive working syle
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Ikeep thinking how dare any body dare to claim an embedded profs without any kind of acrtual HW experience
I abolutely never believe such claim per my own experience
Knowkegge without practice is worth less than a book
In one case I came to rescue a embedded Linux contract at BoulderColoradoSymmetricom He was fighting with intermittent behavior in months
his expertise was far a lot better than mine in eLinx When due datewas up  for a demo to USA Army with PTP product I had a biz trip there within less than 10 min after my arrival I fixed it based on my HW experience read/write setup hold time
Another case with my boss PhD Scientist as a  lead of  team to update PTP to v2
He had dozen book on PID control all over his desk
But he failed to get job done in saying to the team that he found his simulation was exploded so it cannot be done
I had to jumped in to rescue and Symetricom could claim a pioneer in this new technology PTP and I was laid offSymmetricom and now Micro Chip is just kind of evils on earth
I strongly believe per my faith in Law of Casuality Some day in near future they have to get a terrible consequence for all their evil actions
My conclusion is nothing can be done without real experience in the area
In my 1at case above was based on my 10yr in HW, FPGA especially
In the 2nd case above is based on my real  Control exprience in 5 yrs in Control Lab at UTS
I dare to challenge whoever claim sucessful in their task without real experience inthe area


New product  done is only  half of sccess the other half is  the cost
It's unlikely no  competetition on the new product
It's likely no customer for a product at high price
Market is very dynamic and competitive
No place for a late new product

My working attitude is divide and conquer
Tomorrow is too late
Any problem must be verified first before atempting to find the solution
Any modern device is compsed of HW and SW, known as embedded
SW is flexible but its response is not fast  as HW even with realtime embedded SW or even premptive
The fastest SW response is interrupt but it come with latency
In my jobs in timing industry all response under milisecond must be implemented in FPGA
So solution to any problem could be SW or HW solution
I 'm proud to work across boundary  and very helpful to my SW partner in making their job more productive and enjoyable in making a dump HW smart enough
When a problem occur a finger point is likely occur   HW.SW problem
To be neither HW nor SW
It's both bcz HW/Sw is not hapy with each other
I'm proud to clain and exceptional R&D developer where I made my HW for SW
and also developed embeded SW for HW
FPGA is a dedicated CPU so I have to reponsible for its Linux drivers just a little enough to work with my FPGA with some kind of memory map for CPU
At Symmetricom wore both hat HW / SW
How about my control back ground to make any significant difference in my job
All modern equipment are digital
So digital communication must be required as message exchange via digital clock so they hey have to work together  in a system
To be operational system the clock must be stable and its phase and frequency must be within some tolerance This is done via Oscilattor Discipline  or Oscilator Control
All Wireless tower has this kind of thing to be operational
I got  5years working in control lab at UTSand it's invaluable experience to get thing done sucessfully in Osc Control
 
It is stealing to get paid from biz profit without any real original contribution to biz profit.An original is by real doing not by just talking like me ex boss at Syymetricom He just contributed by nice words to hide his low performance and claimed others'acievements as his own original ones. He is the worst theft I ever aware of

My working attitude is high commitment, self starting, aggressive workaholic, dedicated and result-oriented at reasonable cost
An accomplishment at high cost is a failure
Aggressive working add kinetic energy to break thru obstacle
Practice without theory is hopeless ( no guide)
Theory without practice is useless ( a book is more value )
I'm a unique R&D Eng with strong back ground in Math for logical thinking and in both HW/SW and in Control in partcular OscilattorDiscipline, key sucess in all modern digital equipment, especially for wireless tower
A lot Tek guy claimed they did architect product in their task
I really doubt
The followings are keys in To making efective a product arch
  1. Both hands on HW/SW and logical thinking
  2. HW should include FPGA
  3. embedded SW should validate all write
My boss a PhD chief Scientist claimed an Ex Physic Professor at a Univ
Hewas resposible to solve Osc Discipline(Osc Contol) for PTP v2 master Clk update
There were a dozen Control book on his desk but he could not do it and misled that he found his PTP simulation expoded so the task was impossible and he gave up
I jumped in and brought it to happy ending
I have not only with advanced control theory in my PhD thesis now published in a book by PhD supervisor Hung Tan Nguyen tile
Pubished SMCBook
 Advances in Discrete-Time Sliding Mode Control: Theory
and Applications
My PhD tile
Sliding-Mode Control:
Advanced Design Techniques
PhD_Thesis
He offered the topic  and I independently carried out all the remaining deails all the way to the end
But also with classical control, the key of mysuccess in Osc Control for PTP Clock above per my tutoring 5 yrs in Control Lab for Sr student EE at UTS

I made key contritue to any biz I 've been from VN to AUStralia and also  in USA
in USA
1. startup NextLevel Comm in Rohnert Park CA
5 new product in 3 yrs seen as the bightest Eng from a Sr Eng there these  product has uique arch appreciated by all SW Eng and they asked their HW partner to follow my arch to ease their jobs
2. Symetricom
A key contribute to PTP Master Clck which Symm  proud of as pioneer in new tek PTP
Symm Eng moved to other biz and duplicated there
Venture Design
as R&D contractor
sucessfully implemented true USB high speed 12 Mbps vs serial USB at 112Kbps
But the narrow mind mangr brought down the biz per his silly biz  attitude in waiting to release perfect product
I argued against his way
in saying Never ever looking for perfecct product as it  was perfect at only moment of start but at the end it obsolete and not perfect due to dynamic market after too long to market
In particular it's perfect in his view but not from customer's
as a perfect product requires feedbck customer after release
He nerver been in startup biz so he has a silly way of doing biz



High commitment to both responsible product and men in under my management when I was a manager of 2 engineers and 50 skilled worker in a musical audio instrument firm named Tien Dat in Saigon Vietnam between 1986 til 1988 I found the firm just took out a very tiny fraction of profit to pay my men I was struggling to double pay for my men They negotiated to triple my pay but not double their pays I rejected the offer right away Eventually all my men had double pay One of 2 engineer now also on LinkedIn She was the witness of that unusual event I doubt if such event ever occured any where else
I had no pay raise at all in 12 years with Symmetricom.
Even I had to solve all challenging problems for my boss's a PhD Chief Scientistduties to maintain profit for Symm I also solved problem and mentored mentored 2 vSr HW Eng Without such interventions my misleading boss barely and theese 2 Sr HW Enginerers kept their jobs
Without any kind of supervision solely based on my solid back ground in multiple areas in HW/SW/FPGA/TCPIP Ethernet Frame I proudly and frankly to claim all my new projects at work were self motivated and independently created product architect for SW team enjoy working on my HW
My HW architect allows building HW for SW and vice versa Owing my architect, SW has reliable HW servant to count on; SW found fun to work on my HW Owing my architect HW has reliable SW manager to count on as SW never overrun HW and always absolutely honor HW setup-hold time Consequence shorter SW development time so the least time to market and better biz revenue A modern product is composed of some pieces [HW SW ] and FPGA I really had real experience hands on all those areas Only hands on experience make our kowlegge active and productive Otherwise it's just passsive like a book but a lot less details than book content I did have such experience in those areas Otherwise it's a real shame for me with the claim on my product architect above All my HW were fully under SW control. HW debug using fingertip not Oscilloscope;Extra Verilog in FPGA excludes Logic Analyzer in HW debugging FPGA is a dedicated processor So I provided its memory map and bare-metal/Linux driver to my SW peer along with HW document with block diagram as a user guide of my HW