Sony 85P Operating Instructions Manual page 82

Glossary
S-video
A signal format in which Y (luminance)
and C (chrominance) signals are separated
to reduce interference between them so
that noiseless images are reproduced.
Sync signal
A reference signal consisting of vertical
and horizontal sync signals used for
synchronizing the scanning patterns of the
video camera and the monitor.
TBC
Abbreviation of Time Base Corrector.
Electronic circuits to electrically stabilize
the playback signals by removing color
variation and roll in the playback picture
caused by irregularity in drum rotation and
tape movement. Time base correction
reduces deterioration of picture quality
when transmitting or copying playback
signals.
Threading
See "Loading".
Time code
Signals recorded on the tape to supply
information on tape position such as the
hour, minute, second and frame, to assist
in setting edit points or searching for
particular scenes.
User bits
Sections of time code information
consisting of a total of 32 bits that can be
used for recording information such as
date, tape ID number, program ID number,
etc.
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Appendix