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User Guide and Technical Manual
Glossary
Term
Defi nition
1080i
1080i is a standard HDTV video format. 1080 represents 1080 lines of vertical
resolution and the letter i represents “interlaced” or non-progressive scan.
1080i usually assumes a wide screen aspect ratio of 16:9, implying a horizontal
resolution of 1920 pixels and a frame resolution of 1920 x 1080, or 2.07 million
pixels.
16-QAM
16-state Quadrature Amplitude Modulation
The signal [video + audio] is imposed onto the 70 MHz carrier by varying both
the phase and the amplitude of the signal while keeping the frequency constant.
There are 16 possible combinations of phase and amplitude that can be used to
carry information.
3G
3G represents the third generation of mobile telecommunications technology.
3G telecommunication networks support services that provide an information
transfer rate of at least 200 kbit/s.
4G
4G represents the fourth generation of mobile phone mobile communication
technology standards. It is a successor to the third generation [3G] standards.
A 4G system provides mobile ultra-broadband Internet access, for example
to laptops with USB wireless modems, to smartphones, and to other mobile
devices. Conceivable applications include amended mobile web access, IP
telephony, gaming services, high-de
fi
nition mobile TV, video conferencing, 3D
television, and cloud computing.
64-QAM
64-state Quadrature Amplitude Modulation
The signal [video+audio] is imposed onto the 70 MHz carrier by varying both
the phase and the amplitude of the signal while keeping the frequency constant.
There are 64 possible combinations of phase and amplitude that can be used to
carry information.
720p
720 represents 720 lines of vertical resolution and the letter p represents non-
interlaced or progressive scan. When broadcast at 60 frames per second, 720p
features the highest temporal [motion] resolution possible under the ATSC
standard. Progressive scanning reduces the need to prevent
fl
icker by
fi
ltering
out
fi
ne details, so spatial [sharpness] resolution is much closer to 1080i than the
number of scan lines would suggest.
802.11
IEEE 802.11 is a set of medium access control and physical layer speci
fi
cations
for implementing wireless local area network [WLAN] computer communication
in the 2.4, 3.6, 5 and 60 GHz frequency bands.
8-PSK
8-Phase Shift Keying
8-PSK is a digital modulation class that conveys data by changing, or
modulating, the phase of a reference signal or carrier wave.
AAC - LC
Advanced Audio Coding - Low Complexity
AAC is a standardized, lossy compression and encoding scheme for digital
audio. Low Complexity [LC] encoding is the simplest and most widely used and
supported.
