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Kullanım Kılavuzu
ATLANTA Xtrend - ET9000
(called intermediate frequency or IF).These lower frequencies travel through
cables with much less attenuation of the signal, so there is much more signal left
on the satellite receiver end of the cable. It is also much easier and cheaper to
design electronic circuits to operate at these lower frequencies, rather than the
very high frequencies of satellite transmission.
PID
Stands for Packet Identifier. This is a set of numbers identifying stream packets
contained within a single data stream
Polarization
The orientation of the electrical and magnetic fields of a signal. Satellites use
mainly vertical and horizontal polarization.
S/PDIF
Stands for Sony/Philips Digital Interconnect Format. A common use for the
S/PDIF interface is to carry compressed digital audio as defined by the standard
IEC 61937.This mode is used to connect the output of a DVD player to a home
theater receiver that supports Dolby Digital or DTS surround sound. Another
common use is to carry uncompressed digital audio from a CD player to a
receiver. This specification also allows for the coupling of personal computer
digital sound (if equipped) via optical or coax to Dolby or DTS capable receivers.
Smartcard
A pocket-sized card with embedded Integrated Circuits which can process data. It
can receive input which is processed and delivered as an output. The card may
embed a hologram to avoid counterfeiting. It is used for accessing encrypted TV
channels or services.
Teletext
A television information retrieval service developed in the United Kingdom in the
early 1970s.It offers a range of text-based information, typically including national,
international and sporting news, weather and TV schedules. Subtitle (or closed
captioning) information is also transmitted in the teletext signal, typically on page
888 or 777.
YPbPr
A color space used in video electronics, in particular in reference to component
video cables. YPbPr is the analog version of the YCBCR color space; the two are
numerically equivalent, but YPBPR is designed for use in analog systems
whereas YCBCR is intended for digital video. YPbPr is commonly called
‘component video’, but this is a misnomer, as there are many other types of
component video (mostly RGB with sync either on green or one or two separate
signals).
YPbPr is converted from the RGB video signal, which is split into three
components, Y, PB, and PR.
* Y carries luma (brightness) and sync information.
* PB carries the difference between blue and luma (B-Y).
* PR carries the difference between red and luma (R-Y).
Sending a green signal would be redundant, as it can be derived using the blue,
red and luma information.
