The half frame of a television scan which is composed of the odd-numbered lines.
A feed which is offset from the center of a reflector for use in satellite receiving systems. This configuration does not block the dish aperture.
– Geek box term. The amount of picture area that gets cropped off along the edges of a television screen. Zero percent overscan means the television does not crop off any of the incoming picture. Overscan is often set intentionally at the factory to be 5 percent, or even higher along the edges, to ensure the screen is full at all times regardless of fluctuations in brightness (which can change the overall picture size) or nonstandard signals, such as those from camcorders or video games.
Packet Identity (PID):
A 13-bit number that identifies transport stream packets containing data from a single data stream
An entity that breaks a stream up into discrete units of data and, usually, encapsulates each packet with extra information used to allow the packets to be reliably re-assembled into the continuous data stream
Packetized Elementary Stream (PES):
An elementary stream that is divided into typically large packets of a defined structure before being further packetized for the MPEG transport process
Phase Alternate Line (PAL):
The European/African color TV format which evolved from the American NTSC standard. PAL-I version used in South Africa.
– Phase Alternating Line. This video-transmission standard was introduced in the early 1960s and is used in most European countries except France and the former Soviet Union. PAL standards specify 625 lines of resolution at 50fps.
– Process of transferring a movie or other source material to videocassette, DVD, or broadcast so that it fits the 4:3 aspect ratio of most current TVs. This results in a significant amount of lost picture information, particularly in the width of the image, and sometimes involves panning unnaturally across the frame. At the beginning of a movie, there is often a disclaimer about the movie having been “…formatted to fit your TV.” That means it’s been converted to pan-and-scan. See also anamorphic.
– Dots of color, sometimes composed of separate red, green, and blue subpixels, that combine to create an image; from the words picture element.
– Picture Line-Up Generation Equipment. Test pattern for video equipment to set black level.
– Display technology used in large-screen, flat-panel TVs. Each plasma panel contains thousands of tiny tubes that are like miniature fluorescent lights, filled by ionized gas in a plasma state. When excited by electricity, the tubes–which are backed by red, green, or blue phosphors–glow in different colors and intensities to create an image.
– Also called sequential scanning, this is the antithesis of interlaced scanning used in broadcast television, the process by which all odd and even scanning lines are “painted” by an electron beam every 1/60 of a second. This method reduces flicker and increases stability.
Patching means altering the software or firmware to create new possibilities. When we talk about patching receivers (like the famous Allcam patch) it means that the original receiver firmware is modified in such a way that it is able to do more than the manufacturer intended it to do.
The Allcam patch, for instance, is a modification that allows you to decode multiple coding systems on just 1 CAM. Such Allcam patches are offered for several receivers, on the web.
But also creating a new language version of the receivers operating system, requires a firmware modification and would thus be called a patch.
Pay Per View:
Pay Per View (PPV) as the name implies, is a technique, used to charge a viewer only for the program he/she watches. So with PPV, whenever you want to watch a movie or sports match, you will pay for that program only.