Audio and Video

Cat 5 Cable Modeling

Category 5 (CAT5) cable is a multi-pair (usually 4 pair) cable that consists of twisted pair conductors, used mainly for data transmission. Basic CAT5 cable was designed for characteristics of up to 100 MHz. Newer CAT6 cable is designed form 250 MHz. Nowadays there are applications where those cables is used to carry higher frequencies.

Webkit-based UI for TV devices

Netflix’s Webkit-based UI for TV devices article says that Netflix uses WebKit, JavaScript, HTML5, and CSS3 to build user interfaces that are delivered to millions of game consoles, Blu-ray players, Internet-connected TVs, and devices. Matt McCarthy and Kim Trott, device UI engineering managers at Netflix, have just published 50 presentation slides from their recent talk

Seen at Assembly 2011

The stand for Ubuntu Linux also had some Meego people showing that Meego is still going wrong. I got my hands on the Nokia N9 prototype version (I did not get permission to take picture of it). There was also Intel Meego tablet reference platform shown on the stand. The MeeGo people from Nokia were

New tech fails to drive new TV set sales

TV manufacturers try to put in all kind of new technical gimmicks to their products. Top telly tech fails to drive new set sales. The technologies telly makers are promoting in a bid to persuade punters to replace existing TVs are failing to excite consumers: LED backlight technology, internet connectivity and 3D. LED was the

Entering The Minority Report Era?

Stephen Spielberg’s Minority Report (released nearly 10 years ago) captured the imagination of many in the technology space. Today we are seeing some things from the movie start to come true right in front of our eyes today. Entering The Minority Report Era: A Video Series article shows some examples of those technologies. The video

Fractals without a Computer!

A fractal is a figure with a self-similar pattern. Usually the fractals are calculated with a computer, but is is possible to produce Fractals without a Computer! It’s very cool – partly because it looks neat, but also partly because it shows you something important about fractals. Optical video feedback is a well-known phenomenon. If

Audio, Distortion and Feedback

Audiophiles seem to revel in minor controversies – vinyl vs CD’s, tubes versus solid state, capacitor, wires, magic dots… and negative feedback. At one extreme (“objectivists” and engineers), the position is that “feedback makes amplifiers perfect”. At the other extreme (“subjectivists”) usually claim that “feedback is a menacing succubus that sucks the life out of