WIP: updated about/resume sections with research interests.:

content/about.md

@@ -12,31 +12,65 @@ This site shares a bit of informal documentation and blog-based record keeping
 reflecting my day to day activities. Hopefully it's a good mix of technical and
 just-for-fun discussion. Professionally I am a mixed-signal circuit designer
 which means I compose integrated circuits mostly for sensors whose signals are
-then processed for interesting features. Besides that I enjoy a bit of casual
-programming as a hobby which is now predominantly based on python which makes
-it easy to share and adapt code.
+then processed for interesting features. Besides my day-to-day job that I enjoy
+a bit of casual programming as a hobby which is now predominantly based on
+python which makes it easy to adapt or share code.
 
+Currently my casualy programming projects are mainly oriented towards image
+processing for object recognition and vectorization techniques. Basically
+I am trying to approximate a rasterized images using absolute geometries and
+polynomial color contours such that they have infinite or vector-based precision.
+Surprisingly the hardest part here has been detecting and extracting the
+underlying line-art and resolving contours.
 
+Besides that I try to self-host the web-services I used as much as possible
+both as an educational oppertunity with the added benifit that I can enjoy more
+privacy than the average person. While it is a bit of effort, I feel that this
+is an important part of software freedom and lets me avoid malicious services
+that I would otherwise be subject to.
 
-# research interests
+# Research Interests
 
-# Proficiencies
+I have a strong appreciation for sensing systems and exploring the
+More-Than-More scaling for CMOS technology. The idea here is to augment
+traditional fabrication techniques for sensing bio-markers, particles, light
+and all kinds signals using electronics. More generally however I study analogue
+signal processing techniques in the context of all-digital systems. My main
+research interests currently are time-domain processing and asynchronous custom
+digital logic for high performance applications such as ultra-low-power medical
+devices and ultra-wide-band radio transceivers. In these systems we can encode
+information using the relative timing of clock edges e.g. pulse-width-modulation
+to do analogue processing using digital logic which leads to a new approach to
+realizing certain functions and implementations.
 
-I have well over 10 years of design experience using Cadence and Seimens (Mentor Graphics)
-EDA design suite extensively from process-development-kit integration to mixed-signal
-design verification. Having predominantly designed mixed-signal instrumentation chips most of my
-proficiency lies with the Virtuoso analogue design flow. However I have historically
-worked in smaller design groups of 5-10 people where you need to be familiar with
-the entire development process for a device from start to finish touching on process selection,
-tool configuration, and production planning. Fortunately  
+### Time-Domain-Processing
 
-with ADE/Measto verification
-but I am quite comfortable with skill and any Cadence know how for speeding up design development.
+There are always some suprising consistencies when re-imagining the
+representation of information. For example in time-domain systems we can realize
+resolve units of time with almost arbirtary precision, very often down to a
+KT/C equivilent limit. Howver some-how similar to traditional analog systems,
+where the maximum dynamic range is limited by the voltage-supply, in
+time-domain systems this limit comes from rate at which we can make
+observations. For example say we have a 1 MHz pulse-width-encoded signal then
+we can only resolve relative timing information at 1 MHz. We could increase
+our dynamic range by reducing the pulse-repetition-rate but our information
+rate stays constant since we only double the information-per-pulse but half
+its rate. Comparing this again to traditional analog with a simple RC circuit
+where our maximum dynamic is set by the supply voltage to KT/C ratio and this
+is fixed irrespective of the resistor or bandwidth of the circuit. Again we can
+show that this is a fundamental consequence of the
+[equi-partition-theorum](https://www.wikipedia.org/equipartition-theorum)
+irrespective of how we represent/encode information.
 
-## Programming languages
+The main advantage of time-domain processing is that we can exhaustively use
+digital logic. This is not only highly-adventagious when designing in a
+deep sub-nanometer technology since they are geared towards these kind of
+circuits but also we dont suffer from performance losses due to device parameter
+degredation in the same way a tranditional op-amp might. In fact you can show
+that time-domain circuits can realize almost ideal operators for summation,
+integration, multiplication, and thier inverses through closed-loop operation.
 
- - Python
- - Skill
- - C++
- - Bash
- - Matlab
+### Over-Sampling Techniques
+
+Another facinating topic for embedded sensing circuits is the application of
+over-sampling techniques.