Archive for ‘Technology’ Category
Posted on 13:09, February 12th, 2008 by Many Ayromlou
Canon is using Iris watermarking to take photographer’s copyright protection to the next level. A new Canon patent application (Pub. No.: US 2008/0025574 A1) reveals the next step in digital watermarking – Iris Registration. The process is as follows:
Original and more details via Photography Bay.
Posted on 12:19, December 17th, 2007 by Many Ayromlou
If you like to see some of the most prolific Engineers and Scientists of our time talk about how we got to where we are in computers, head over to the Computer History Museum Channel on You Tube. Oh, and if you’re ever in Northern California somewhere, take a side trip to Mountain View and visit the Museum in person, I did.
Posted on 19:08, October 9th, 2007 by Many Ayromlou
I came across FotoFlexer a couple of months ago and I thought I would do a write-up at some point. Now with the addition of advanced morphing tools and image carving, I think I have to. If you haven’t heard of FotoFlexer go to their site and signup for an account. Trust me you’ll be sorry you didn’t. Their editing application is way up there in terms of advanced functionality and they integrate with pretty much any photo/social site (Facebook, myspace, photobucket, flickr, picassa, yahoo photo and even your own website). Below you’ll find some of the tools available to you when you login:
Posted on 12:25, September 28th, 2007 by Many Ayromlou
You see there used to be a company called DEC (Digital Equipment Coorporation) who’s brilliant engineers designed this processor called Alpha 21364 (aka. EV7) and the associated bus structure wayyyy back in 1998/1999. Sometime after, a group of idiots (most likely accountants) decided that the company should merge with the Compaq computers , who themselves were sold to HP later. So to all you “original” DEC engineers…..we salute you. It’s just too bad that it took 10 years for your visions to become mainstream.
You can find out more info about these heroic nerds and their company on wikipedia.
Posted on 23:28, September 26th, 2007 by Many Ayromlou
So this is just a short tutorial, so I don’t have to repeat this to every person who asks about the difference between T and E circuits. Here is the whole thing (more or less), (hopefully) once and for all.
It all starts with the Nyquist’s Theorem and Pulse Code Modulation. PCM is the way telephones digitize audio (your voice). Nyquist’s Theorem (named after Harry Nyquist) says that “When sampling a signal, the sampling frequency must be greater than twice the bandwidth of the input signal in order to be able to reconstruct the original perfectly from the sampled version”. Another way of putting this is that to accuretly encode an analog signal (your voice) you have to sample it twice as often as the total bandwidth you wish to reproduce (your voice on the other side).
Now the phone system carries frequencies between 300-4000 Hz, so according to Nyquist, a sampling of 8000 samples per second will be enough to reproduce any frequency within the bandwidth of an analog phone.
Now fast forward past a bunch of engineering mombo-jumbo (keeping the 8000 samples/sec in mind) and we get to DS-0, the magic designation of the foundation of digital communications. You see the standard way of to digitize a phone call is to record (transmit) an 8-bit sample 8000 times/sec. This PCM encoded stream requires a bandwidth of 64,000 bps. This 64-kbps channel is known as DS-0 and is the foundation of all digital telecommunication circuits.
So now that we have our base unit (DS-0) lets look at one level higher, the T-carrier circuits. You’ve probably heard of a T-1 line, right? Well a T-1 line is actually 24 DS-0 lines multiplexed into a 1.54 Mbps line. The proper definition of a T-1 line is actually DS-1. Now for your trivia question…..what’s a E-1? Well it’s similar in concept to a T-1 except the Europeans actually used 32 DS-0s to define E-1 (rather than 24 like in North America). BTW the really confusing part is that an E-1 — despite having 32 channels rather than 24 — is also called DS-1…..go figure.
Now I haven’t tried it myself (yet), so maybe the title should read “Jott (should) rock, if it works as advertised!!!”, but that just wasn’t cool. You all know that you can send email to certain blogging services and services like twitter (you can also txt twitter) with new content and/or comments. But can you type as fast as you talk? I bet not:
It’s simple, Call 1-866-JOTT-123, say the name of your link (ie: “Twitter”), after the beep, say your message and hang up. Very cool.
You can also Jott yourself, in which case you will receive a Email reminder with text version of your voice message. You can also Jott messages to other peoples email or to a group of people (ie: next time you’re late for a meeting, just phone jott, speak your message and send it to the group…done).
Take this with a grain of salt (maybe a rather large grain), but this soon to be released product (September 25th) might be a goodway to introduce kids (and adults) to green screen concepts for cheap. It even comes with a “Tripod”….Ooooohhhhh……Triipoooddd :-)
Posted on 17:34, August 31st, 2007 by Many Ayromlou
So today I had a choice to make. You see I had to draw a small diagram and needed a editor. Now I know visio is the end-all-be-all of editors, but I needed something fast and simple. Oh and I really didn’t want to go down to the office to pick up the install disks for visio (on vacation). That’s where web2.0 came to rescue again. After a short google search I found two online services that allow you to edit/share Diagrams right in your browser:
I’ll leave it to you to decide, for me personally Gliffy is more polished and has a better feel. Try them both (they are free) and let us know.
This is just such a gem I couldn’t help, but put it up. Head over to Briel Computers and have a look. Fully functional Apple I, KIM-1 and Altair PC cases. Man this just took me back in time.
Note that Replica I is actually an “upgraded” APPLE I. Their version has USB and serial and can be used with PC keyboard and power supplies. The Micro-KIM is exactly the same as the original KIM-1, but at quarter the size.