Panasonic Viera TC-P54Z1, Technical Manual

Page: 92 / 93

Slide #92
Glossary
YUV
Is The color encoding system used for analog television worldwide (NTSC, PAL and SECAM). The YUV
color space differs from RGB, which is what the camera captures and what humans view.
Composite Video and S-video
The original TV standard combined luma (Y) and both color signals (B-Y, R-Y) into one channel, which
uses one cable and is known as "composite video." An option known as "S-video" or "Y/C video" keeps
the luma separate from the color signals, using one cable, but with separate wires internally. S-video is a
bit sharper than composite video.
Component Video
When luma and each of the color signals (B-Y and R-Y) are maintained in separate channels, it is called
"component video," designated as YPbPr when in the analog domain and YCbCr when it is digital.
TMDS
Transition Minimized Differential Signaling
CEC
Consumer Electronics Control
DDC
Display Data Channel
Standardized by VESA (Video Electronics Standard Association), DDC allows the acquisition of all types
of attributes and automatic settings to match the capabilities of the display. An expanded version, DDC/CI
(Command Interface), has bidirectional control capability.
Buffer
A buffer is a circuit that compensates for differences in processing speed between communication lines,
eliminating input/output interference.
Equalizer
Longer cables result in proportional degradation of the digital signal, making it increasingly difficult to
distinguish between ones and zeroes. An equalizer is a circuit that restores this degraded signal, so that
subsequent digital blocks can correctly determine the digital value.
Buffer
A buffer is a circuit that compensates for differences in processing speed between communication lines,
eliminating input/output interference.