 |
| Active LCD Glasses |
3D glasses which alternatively cover the view in each eye in sync with the display source so that each eye sees the alternating images required to create the 3D illusion. The rapid shuttering is faster than the brain can detect, so it isn't noticeable to the viewer. (The alternative to Active LCD Glasses are Polarized Light 3D Glasses.) |
|
Adapters |
Additional equipment/devices needed to attach an existing Twin Lead
antenna wire to a digital-to-analog converter box. |
|
Anaglyph 3D |
The "old" way of creating a 3D image using color filters (usually red/blue) to show a different image to each eye. This method is being replaced because it compromises the actual colors of the presentation. |
|
|
| Analog TV |
Analog television encodes television picture and sound information and
transmits it as an analog signal (one in which the message conveyed by the
broadcast signal is a function of deliberate variations in the amplitude
and/or frequency of the signal). All systems preceding DTV (e.g. NTSC) are
analog television systems. Analog technology has been in use for the past
50 years to transmit conventional TV signals to consumers. |
|
| Analog Channel |
A communications path that carries voice or video in analog form � as a
varying range of electrical frequencies (See Analog Signal). |
|
| Analog Pass-Through |
Digital converter box capability, which allows analog broadcast signals
to pass through the converter box to be tuned by your analog TV. |
|
| Analog Signal |
A type of signal that encodes voice, video, or data transmitted over
wire or over-the-air that is commonly represented as an oscillating wave.
An analog signal may vary in frequency in response to changes in physical
phenomena, such as sound, light, heat, position, or pressure. |
|
| Analog Spectrum |
A traditional range of frequencies used for radio and television
transmission. This is a less-efficient and lower-quality system that uses
Radio Frequency (RF) waves to transmit and display pictures and
sound. |
|
| Analog Transition Date |
In the US, this refers to June 12, 2009, which was the DTV Transition
deadline mandated by Congress for the turnoff of analog broadcasting by
full-power TV stations. Other countries have also set deadlines for the
transition from analog to digital broadcasting. |
|
| Antenna |
Device designed to receive the radio waves broadcast by television
stations. |
|
| Aspect Ratio |
Screen's width as compared to its height. For example, for 4:3, the
traditional TV aspect ratio, a 32-inch TV would be 25� inches wide and 19
inches tall. A 16:9 widescreen 32-inch TV is closer to a movie screen than
a traditional TV, and would be 28 inches wide and 16 inches
tall. |
|
| ATSC |
Advanced Television Systems Committee. This is the name of the DTV
system used by broadcasters in the U.S. |
|
| ATSC Tuner |
Often called an ATSC receiver or HDTV tuner, allows reception of DTV
signals broadcast over-the-air by TV stations. May be integrated into a
television set, VCR, DVR, or set-topbox. |
|
| Autostereoscopic 3D |
"True 3D" which does not require glasses to create the 3D image. |
