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My tech blogs here - RF Wireless
- Microwave, Optics, Telecom. - Hyper Embedded
– Microcontroller, SOC, FPGA. Some of the ideas will be posted here DACT Elektrotech Laboratories
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(many of these products and ideas have been used by various people and products made with them, it has fueled concepts, help fix existing methods in organizations, startups and firms since 1999. i am adding all back in one place. If you are one of the beneficiaries of my ideas, please support my labs, Contact Me. )
The Average home user or a majority of mankind have trouble even when
operating a TV remote control. Things are not as simple as a Water Tap
or a Toggle Switch. An Easy to use Handheld is more important than any
technology or features that may be available for that. Ergonomics,
Utility or Application, Quality and Cost are the basic requirements of
Handheld gadget for the masses, needs to be a Entertainer and
Communicator. It has to be wireless and should at least get into a Coat
Inner pocket or Small Bag. It is a Duarble Consumer Electronics Product,
comparable to the first Popular Tape Recorders from Philips or Grundig.
Wifi and WiMax
are the things that are being talked-blogged about and being tried. I
just got some idea about these technologies and have my feedback or
If Somebody asked me to set up a low
cost wifi connectivity in a small housing complex, I would just strap a
wireless router on the pole on every street corner, the poles or
junctions being the ones used for existing cable broadband. Then
depending on subscriptions and demand, improve the capacity of the
network within the budget of the colony.
can have simultaneous connection to two or three routers and as the
person moves, drop a weak path and take up a new router which is strong.
This is just my hunch.
The Handheld could be used for three types of wireless connections.
Full Multimedia Duplex - Like Video Telephone, WebApps - 100 units money charge per hour.
Semi Multimedia Duplex - Like Interactive Quiz, Games - Up is Text, Down is Video - 50 Units /hr.
Multimedia Broadcast - Digital Radio Podcast, TV Show Podcast, Movie Podcast - 15 Units/hr.
TV and Radio Shows on subscribed podcasts can be downloaded and stored
when it is transmitted live; but seen any time, any number of times, but
transmitted only once. This is a wireless Transmission with an advance
program xml feed info. It is just like Regular TV. This is to avoid
bandwidth wastage on multiple downloads of same show by the people in
one block. Even software updates and games can be brodcast and stored in
The usage of Internet and phone remains
duplex and will take more resources. The handheld usage for
entertainment may be very high. Duplex for that will cause excess costly
load. Normal usage of Internet for browsing, mail and webapps may
become difficult as more entertainment load builds. Entertainment on
Handheld is best as a one time brodcast with a advance feed.
Wireless Handhelds connectivity must have separate interfaces for Web
and Media. The Web is the same as Lan Wifi but Movies and Games can be
connected by a Broadcast Show. And seen on Handheld by wireless
Programmable Live Reception with storage.
Anantha Narayan around 07-08 - First in Nomadic Computing
XML-HTML FM Radio - FM Radio enhancements
consume less power and are affordable, now we should add a small LCD
display like you have in cellphones. Xml should be frequency modulated
and transmitted by fm stations in adjoining bands.
is demodulated by fm radio and displayed in the lcd display on radio.
This way news can be transmitted to many people without internet or
tcp/ip. This is just one way broadcast of xml or html information, it
need very less freq. Even html, jpeg, png and flash can be broadcast by
fm radio. Product advertisements can also be sent in this format. Just
tune into your xml fm radio station with your color lcd portable radio
and presto news, ads, pictures, semi static but can reach millions. The
radio tuner can tab over different stations.
Phone Numbers as URLs in HandHelds hhtp
numbers are getting longer and longer as population grows and users
also increase. Long numbers cannot be in memory and difficult to key in.
The telephone instrument should have a alphanumeric keyboard and phone
numbers should be like tom.phone or chang.phone.china this is easy to
key in and numbers are 10, alphabets are 26 you will get 36 char. Per
position instead of only 10, infrastructure will be different, but there
is no other way. Anyway my phone string is ........
hhtp stands for Hand Held Telly Phone - VOIP - TCP/IP - Wi-Fi - WiMax -Why Not ?
(Notes/Ideas around 2004, first put in Ideas of delabs)
These days many gadgets with embedded systems are being used.
iPhones, Netbooks and Desktop Clients. Many of these are used to make
secure transactions for buying products online. In the future
procurement may be as simple as Search-Buy-Collect.
Search involves websites, stores and product reviews etc. .Collect involves the Shipment Delivery, which is a time-tested established system. The Buy is the most important and needs to be secure for both the Buyer and Supplier.
secure transaction process has improved. I am not aware of the fine
aspects. But i do know there is encryption and also the NIC number of
Ethernet cards etc. I have some thought, It may already be known, yet i
think i will note it here.
manufactures and Chip IP makers are standardized. The Secure CPU makers
should obtain a license for secure CPU, which will be a CPU but with a
Secure Transaction Chip with Unique Identification Code engraved within.
Each Chip is unique and a replacement of CPU needs new authentication
for all transactions. No two chips are made the same, the unique numbers
are not on flash (like BIOS), but digitally etched-burnt with indelible
e-ink. So when a person makes transaction his computer is more securely
authorized. More security options like GPS in CPU for big transactions,
these computers will be expensive too.
Just take this books library of mine as example, delabs Library.
A person pays a subscription fee to read in the library for a few hours
or owns a book online. The library can securely deliver pages only for
online viewing. Only one Login from the User ID, either on his portable
device or Desktop Client. Both the CPU numbers are in the records of the
user profile. A secure circulating library or books store is possible.
Many may not buy, but may be members. Some may buy a hard copy and own
electronic versions as it is search able and easy notes can be made.
Publishers can offer books for circulation or ownership and set their
(First posted in delabs Notes 2006 - Then in Nomadic Computing 2007)
I got a Wireless Mouse from people who roast rss-xml. They gave me a
mouse for interesting errors on my part. This mouse led me to buy two
pairs of NiCd AA 1.2V and a Charger.Every three days i have to change a
set of AA Cells. It is working out nicely, the wireless mouse is an
advantage that you cannot ignore. Each time a sync has to be made
between the mouse and an USB RF device.
Show on the right is a planar transformer
which has PCB tracks for winding. This show that there is more scope of
innovation in such ferrite transformers for short range wireless power.
kept on a electromagnetic table must be able to draw energy from that. A
Notebook or tablet can be just placed on this table to get charged.
optic ball-less mouse is a great step in mice-tech user-interface. This
mouse consumes more power, for a wireless mouse a capacitive sensor
matrix based sensing may be better.
Touch Screen on PC
is not common place. A combination of Touch screen and Mouse is
excellent for all age-groups. Large monitors can have at least two
inches of touch screen area at bottom.
I have take one step towards green energy - see tweet below….
Moved to TFT LCD Monitor Today, My Oscilloscope is the only Equipment
Having a Vacuum Tube. LCD is Green, from 150 Watts to just 25 Watts.
This makes my UPS (Uninterrupted Power Supply) last longer and it reduces electricity costs.
Wireless Power for Wireless Peripherals
Mouse with capacitive sensors may consume less power, no batteries
works on a Supercap, Connector-less ferrite dock for recharging
mouse rechargeable battery can recharge while moving on the Mouse Pad
made of Ferrite/Ceramic 1′ Sq with Power Hot Spots every 3″
Ferrite, Silicone & Ferrite based Solid emulsion. Can be made as
computer table mats to charge the supercaps of peripherals. - Idea
Energy Efficient Wireless Peripherals can just be placed on this mat to
draw the power without wires. Wireless power and Wireless Data.
Usability and Erognomics Tweets
and Ergonomics of Electronic Consumer Equipment, product risks and
safety are best studied with very old and very young people.
Computers, Netbooks, Portable Communicating Devices, Remote Controls
are where Usability Issues abound, and can be studied/remedied.
The Apple iPod touch is an Academic Example of Design Engineering approaching ideal Man-Machine Interface
Anantha Narayan delabs - 2009
When you look at the History of Operating Systems, you will see that that an OS that meant serious business was UNIX. It was the anvil for the creation of the C Language and AWK. Now we have Linux, the evolved Unix like OS, which is comfortable and versatile for Networking and Clustering.
Linux is not only Open Source, but can be adapted to any type of
dedicated embedded system. It is more like a configurable firmware for
Embedded Equipment. Its ability to manage multiple tasks efficiently
makes it more friendly and stable, compared to any other OS.
Here is a Embedded Linux Wiki for the embedded product design community.
and Appliances are become increasingly complex. More memory and CPU
power for small devices are commonplace. Linux is one OS that can be
muntzed to the smallest size. This helps developers make something like
a super-firmware. Just what you need for that device, can be the OS.
for Home Appliances, wireless networking and web enabled consumer
electronics make Linux an excellent escalation from "Firmware". For
tiny systems a firmware is the OS. For complex devices today, Linux is
user configured firmware.
- High-performance Digital Media System on Chip
- ARM926EJ-S core
- Video Processing Subsystem (VPSS)
DM355 combines high performance MPEG4 HD (720p) codecs and JPEG
codecs up to 50M pixels per second, high quality, and low power
consumption at a very low price point.
Seamless interface to most additional external devices required for a complete digital camera implementation.
Long ago, i was making and supplying some hybrid electronics to some
firms. The soldering and handling required some tools and custom jigs
which were designed. As the product was mass produced, some tools for
managing and working on Tiny PCB's and parts were not available in the
So a affordable solution was created, the jigs
were supplemented by surgical tools. These are the Clips and Tweezers
that a doctor uses when he conducts an operation.
Let use see one here an Hemostat Clamp and other tools at P J Tool and Supply
Call it Forceps, Tweezers or Pliers. These tools, both the bent/arched/curved one and straight are useful.
could be many more, visit a dentist too. check up your molars and when
he is away, browse around and figure what's useful for electronics. Do
not touch any tool or try them, remember he is a Dentist.
When you go to a Surgical Supplies Store, do not disclose the purpose of the visit. Pretend to be a Student of Zoology.
some Filter Paper, capillary tubes and a spirit lamp as well. These can
find a lot of use in the ultimate quest for the God Particle. Beat the
Swiss to it.
I just got a letter from a US firm enquiringly about my transmitters. It read something like ...
RTD Pt100 Three Wire Transmitter is commercially available? We may be
interested in both the 100 ohm RTD input as well as the 1K ohm RTD input
do not respond to product enquiries as i do not "Make" anymore. But,
this letter is about a design of mine that is published in my pages. It
is a low cost transmitter anybody can build. Study my Circuits FAQ
where some such letters are published. I may now reply only mail that
stimulates me, and appears genuine enough. If you are an engineer in the
US, try making these, a better way possibly, and serve people using
online stores. Online shops should offer Cards, Cheque and
Cash-On-Delivery to enable all types of customers. Items in a store must
reach clients, inside 7 days. Other products should be cataloged with
prices, outside store application.
have to get their profile and products across. Just building a site is
not enough, you need to advertise. People search for solutions, by
proper advertising you can get tuned/filtered visitors to your website.
These people were looking for solutions and you are looking for
Other "promotional techniques" get you a lot
of visitors. Even "ranking high in search results" gets you "Visitors".
This traffic is like Kids looking for Chip-n-Dale landing in a Vertical
Niche Product Catalog for Steam Turbines. This will just build
bandwidth cost for you, but you will have a nice feeling you are getting
Visitors. This may even make your site slow for the rare real visitors,
who want to buy your products/services. So think smart, nothing comes
easy, lot of hard (straight) work.
First Posted in Mar 2010
Tablets and Slates based on OpenSource OS. Even OpenHardware Tablets. This is a collage of various blurbs of mine in my other pages.
Why Tablets ?
- People want computing to be Personal and Portable and hassle free. With less Maintenance Tasks.
- Low Power or Green is the order of the Age, Fuel and Energy is not as easy, expensive and depleting.
- Low Carbon Footprint, The global carbon footprint of making, selling and scrapping tablets is low.
- The Technologies have evolved in Flash, Battery, CPU, OS, GUI, LCD, SMT and most Electronic Parts.
- Online - Web Computing and Cloud Computing offers Safer Storage and Powerful Web Applications.
Most Important Specs. - Low Power, Wireless, Portable, Secure, Simple. The Browser is the Most and Only Important part of this Computer.
I saw devices that are like Tablets. Handhelds, Nettops, Smart TV Computers. Low Power and enable to use the Internet on TV or any Display Device. Android is a nice Gadget OS, customise it to make your own device.
I have made a stub Tablets Slates - EEMetric
Some Ideas of mine that were put in delabs Tweeter, related to EDA and Product Design
Product Design Optimization
Practical (it works), Affordable, Usable (ergonomics), Safe, Reliable
(robust), Durable/Consistent & Maintainable (Servicing) Products.
Dust and Contamination in Connectors
i opened a RF Millivolt Meter of Marconi Instruments. It did not have a
spec of dust inside, not even one micron size of dust particle.
exposed to Environment should not only be Corrosion resistant but also
Dust, Grime & Insect Proof! Dummy Covers on exposed units.
Vents, Fans & Unused Slots in Modular Instruments. Missing
Fasteners in cabinets, gaps in panel components collect Dust &
Dust + Moisture + Smoke + Pollutants =
Conductive Grime Deposits on PCB, Parts & in-between the IC pins.
Can Simulation include this aspect.
Environmental Testing a part of simulation and EDA, just like
Mechanical Modelling and Studying Thermal Gradients on PCB.
a Servo Stabilizer or CVT Constant Voltage Transformer or at least an
Isolation Transformer. The First Defense form HV Surges, Spikes.
Voltage Polyester & Polypropylene Metallized Capacitors in
Stepdown Supplies should be Fire Retardant & Self Healing with a
Tropicalized means immunity or resistance of
an equipment in conditions of varied Temperature, RH, Insects, Fungus,
Brine, small life form.
Reliability by Simplicity
controls should be Simple Electromechanical. Supervisory and Fine
Automatic controls are in Embedded Computing. Mechanical Overrides!
More Reliable - Mechanical, Electrical, Analog, Digital, Embedded
System (Firmware), Computing System (OS+Software) - Less Reliable
For a given quality level, more the
components or parameters, may reduce reliability. Simpler the solution,
more reliable it could be.
Just like an electronic circuit is a graphical representation of what will be on the PCB. Firmware
development should be a 2D graphical diagram of what goes into eeprom.
An example is the Ladder Logic
software that can program 80C51 types in a Fanuc, Allen Bradley or Siemens PLCs. Then many people can do at least restricted firmware programming for some embedded solutions.
Visual Embedded RAD
. This is more like code snippets inserted in code in the background when user drags and drops a Hardware Function or Program Method. The Environment is Visual, but Code is compact as same modules or blocks used. There is no C or Intermediate Language. Visual to Binary Hex
(Idea - Mar-04, Revised again - 4 April 2008, Nature - Open Source Anantha Narayan )