Toshiba HD-S25 Manual Do Utilizador

 
 

It is the ratio of the width of the screen to the height. The two relevant digital TV formats     

are 16:9 (wide-screen) or 4:3 (the traditional screen ratio). 16:9 is more ergonomically suitable for the 
human eye. 

 
* Bandwidth: It is the frequency range that allows for carrying a certain radio signal.   
 
* Coaxial Cable: 

A type of cable used to transmit high frequency signals e.g. from the VHF/UHF 

antenna to the terrestrial Digital TV receiver.   

There are three elements of the video system: First - the "active video" which 

means the picture to be displayed on the screen and its associated colors; second - the "sync" decides 
where to place each pixel on the screen; third - the "blanking” tells the display when to turn off the 
electron beam so no retrace across the screen. These three elements combined together is called 
"composite video" when connecting to a display through connectors. 

A wide-screen 16:9 picture that is cut on both left and right to fit a 4:3 TV screen. 

Dolby® Digital is a method of transmitting and storing multi-channel soundtracks via 

newer digital media such as DVD, digital cable, digital TV (DTV), and satellite transmissions. 

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Abbreviation for "Digital Video Broadcasting". An international organization created in October 

1993, whose primary objective is to achieve a common framework for all technical platforms of digital 
broadcasting systems including DVB-C (cable), DVB-S (satellite) and DVB-T (terrestrial), etc. 
 

Stands for "Electronic Program Guide". It is an application that allows viewers to navigate 

through the large number of channels offered by digital TV broadcaster and selects the desired 
services.  

 
* Frequency: 

The property of a signal measured in cycles per second (=Hertz).     

 
* Letterbox: 

The picture with aspect ratio 16:9 in a 4:3 TV screen with blank lines on top and bottom. It 

is the means to watch a wide screen TV program on a 4:3 TV screen.  

 
* Megahertz (MHz): 

Millions of cycles per second, which describes frequencies of radio wave or electric 

current. 

 
* Mini D-Sub 15-pin Cable: 

A type of video cable used to carry analogue RGB video signals. 

: Stands for "On Screen Display". It provides clearer menu functions by using the TV or monitor to 

display the menu while the controls are on the remote control. 

 
* PAL: 

Stands for "Phase Alternating Line", the European video standard that has the image format of 4 

by 3, 625 horizontal lines, 50Hz field frequency and a total 8 MHz of video channel width. 

 
* Pillarbox: 

The picture with aspect ratio 4:3 in a 16:9 TV screen with black masking bars on the left and 

right. It is a way to watch a standard 4:3 picture on a wide-screen TV. 

Radio Frequency Channel, for instance channel 28 for SBS Network in analogue TV 

transmission. However, in digital TV, one RF channel may carry 4 to 6 sub-channels like SBS HD and 
SBS Digital.   

Stands for Red, Green and Blue. RGB video is the highest quality video currently used in the AV 

industry. 

The standard for the way a video signal is carried on the cable. Y 

                                                        

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  Trade Mark of the DVB Digital Video Broadcasting Project (1991 to 1996) 

  Product registration identification reference number: 3025. 

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