Audio and Video

Class D amplifier module

A class-D amplifier or switching amplifier is an electronic amplifier where all power devices (usually MOSFETs) are operated as binary switches. They are either fully on or fully off. The term “class D” is sometimes misunderstood as meaning a “digital” amplifier. While some class D amps may indeed be controlled by digital circuits, the class

Display measurements book

The International Committee for Display Metrology (ICDM) and The Society for Information Display (SID) have published a new standardized way to measure electronic displays. Information Display Measurements Standard (IDMS) document consists of standard measurement procedures to quantify electronic display characteristics and qualities. The hope is that Information Display Measurements Standard (IDMS) serves standards organizations that

New camera technology: See around corners

When I was a kid, there was a periscope you could make out of a cardboard tube and two small hand mirrors to see around corners. Now there’s a video camera system that can do the same. Camera Can See Around Corners and Femtosecond Camera Sees Around Corners articles tell that Scientists at the Massachusetts

Audio and video documents updated

I have updated three popular documents at ePanorama.net: Powering microphones document is updated with cleaner drawings of electret mic to XLR adapter circuits. 3D glasses and other 3D display devices has completely rewritten introduction to 3D glass technologies. This has been a document that has been viewed very often in the site and I felt

High power PoE and HDBaseT

Power over Ethernet (PoE) offers convenience, flexibility, and enhanced management capabilities by enabling power to be delivered over the same CAT5 cabling as data. This technology is especially useful for powering IP telephones, wireless LAN access points, cameras with pan tilt and zoom (PTZ), remote Ethernet switches, embedded computers, thin clients and LCDs. The original

Post HDTV resolution era

Television technology is developing rapidly. Consumers are just gaining access to the 3D TVs when the next disaster is already on the way. Maybe the next revolution is Super Resolution HD-TV. It seem stat we are entering post-fullHDTV resolution (1920×1080) era. Just few years ago full HD was considered the ultimate resolution that everybody were

New camera technologies: vision

I earlier write about new camera technologies concentrating on light field photography. There are many other new camera technologies that deserve to be mentioned. Is ‘vision’ the next-gen must-have user interface? article tells that IMS Research issued recently a press release questioning if Apple and the iPad are falling behind competitors in user interface technologies.