As it sounds, a projection television, or more commonly a "rear-projection" TV work by projecting an image from behind the screen itself. Currently, there are three main types of technology used in rear-projection TV's: CRT, LCD, and DLP. Each uses a combination of projection devices, magnification lenses, mirrors, and screens to produce the image seen. …
Macrovision is a company that sells copy protection products. The company's first product was a copy protection system for VHS tapes, which was also known as Macrovision. For a detailed look at that system, read Antti Paarlahti's Macrovision FAQ. The Macrovision copy protection system was later extended to DVDs. Macrovision is designed to prevent DVDs …
One of the oldest animation techniques that is still in use today is rotoscoping. When using this technique, animators trace over live action film movement on each frame to use in an animated film. When it was first used, live action film images were projected onto a glass panel that was frosted where an animator …
Dish Network, and their previously separated partner, EchoStar, have launched dozens of satellites over the past decade in order to provide direct broadcast satellite television services to their subscribers. While each satellite location, known as an “orbital location” provides services to a different region of the Earth, many of the orbital locations contain multiple satellites …
There are multiple ways to split a DirecTV Satellite signal. The main problem that viewers face is not being able to see a separate channel on each television sharing the signal. If this is not an issue for the setup, then the following options are available for those who wish to continue: Method One – …
In the age of HDTV, it is important to receive the best signals available to take advantage of the higher image quality that such display technology made possible. Pure Digital Television (PDTV) is the answer to this need. PDTV makes it possible to get direct feed from the video source and send it directly to …
Who invented the television is a hotly debated question. The invention of the television grew out of the invention of the radio. Since you can easily send sound through the air waves many inventors starting thinking of the possibility of not only sound being sent through the airwaves, but also images. On December 2, 1922, …
As the number of homes with high speed Internet has dramatically increased over the past decade, the need to connect a TV to a PC has also risen. By connecting one’s TV to a computer, consumers are able to use the computer to drive the content watched on the television. Popular services such as Hulu, …
High-Bandwidth Digital Content Protection, also known as HDCP, is a newer form of Digital Rights Management (DRM) that was designed to control digital video and audio content. The technology was originally created by Intel to ensure that digital audio and video travelling across a Digital Video Interface (DVI) or High-Definition Multimedia Interface (HDMI) would follow …
Multimedia is simply multiple forms of media integrated together. Media can be text, graphics, audio, animation, video, data, etc. An example of multimedia is a Mozart web page that has text regarding the composer, an audio file of some of his music, and even a video of his music being played in a hall. Besides …