Panasonic Hi-Fi Professional/Industrial Video DS850 - Manuel (Page 48)

Time Code/user’s bit
Time code
The “time code,” which is based on the time code signal generated by the time code signal generator, recorded on
tape, and read out by the time code signal reader, is used to display absolute positions on the tape in units of
"hours:minutes:seconds:frames.” Knowing an absolute position makes it possible to conduct editing accurately and
search operations speedily.
There are two types of time codes; LTC (longitudinal time code) and VITC (vertical inten/al time code). The LTC is
recorded on the tape’s normal audio CH2 track. It is used to record the position information on the tape and user’s bit
information.
The VITC is recorded in the vertical blanking period of the video signals so that even without using the normal audio
CH2 track, it is used to record the information regarding position on the tape and user’s bit information.
Tape
LTC time code (audio CH2)
Audio CHI
Video signal and Hi-Fi audio
VITC time code
Control signal
□
The time code itself is indicated on the display and superimpose on the TV monitor.
L T C R 0 0 : 0 7 : 0 4 : 2 4
Time code mode Hours Minutes Seconds Frames
User’s bit
Among the time code signals, the “user’s bit” is an information released to the user. It is used to record the operator
number or real time.
L U B R A B C D E F 8 8
A total of 16 characters—numbers 0 to 9, A, B, C, D, E and F—can be used for the user’s bit.
(The characters “B” and “D” are displayed in small letters in the counter display.)
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