Humming bars in CCTV system monitor image can be caused by many different factors and tracing the issue can be a pain. Video Ground Loop Interference for CCTV article at 2M CCTV Security & Surveillance Blog gives some tips how to solve ground loop problems on CCTV systems. One cause is running your cable over →
Eureka! Ditching DRM Decreases Piracy article tells that new paper to be published in the upcoming issue of Marketing Science shows that removing DRM from music leads to a decrease in piracy. Or phrased differently, DRM appears to be an incentive for people to pirate music instead of buying it. The researchers from Rice and →
Meeting the requirements for video-grade Wi-Fi Access Points article gives some interesting facts on transporting video over wireless LAN. Users are coming to expect a wireless video experience equivalent to video consumption over wires. Traditionally a Wi-Fi device was measured according to its receiver performance, using metrics such as receive sensitivity. With video delivery, transmitter →
BBC plans to use 3D and ‘super hi-vision’ for London Olympics article tells that executive in charge of 2012 coverage has spoken about the proposed experiment: The BBC is considering plans to broadcast the 100 meters final of the London Olympics in 3D, as well as trying out a new super high-definition technology. Super Hi-vision →
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. →
Friday special: Groovy Video Coat video I found on Internet: More details on electronics can be found on Groovy Video Coat pictures and this Video Coat Prototype video: →
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 →
Power Quality Symptoms & Solutions e-book is is written from an electronics point of view, rather than a power engineering one. And in so doing, provides the bridge between theory and real life. According to the book introduction more and more lecturers are using this material as a reference in their courses. You can find →
It seems that there is a trend to convert video systems over from an old, all-analog system to a modern, IP-based system with cameras powered over the Ethernet line using PoE (Power over Ethernet). Weird AC Voltages in a PoE Camera System post at Control Geek Blog talks about an interesting PoE (Power over Ethernet) →
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 →