About Dv - JVC GR-DVF10U Instructions Manual

ABOUT DV

The digital camcorder converts incoming audio and video signals into digital form for recording.
A video signal is composed of a luminance signal (Y) and colour signals (R-Y and B-Y). These signals are
identified and recorded digitally (Digital Component Recording). The A/D (Analogue to Digital) converter
samples the Y signal at 13.5 MHz, and R-Y and B-Y at 6.75 MHz, and changes them to an 8-bit quantum
signal.
Sound sampled at 48 kHz is changed to a 16-bit quantum signal, and sound sampled at 32 kHz is converted to
a 12-bit signal.
NOTE:
The data recorded on a tape is digital, but the output of this camcorder is analogue.
VIDEO
Lens
Chrominance (C)
AUDIO
Mic
This camcorder separates the data into blocks, writing one block of each data type on each track of the tape.
Head tracking
direction
1
Sub-Code Area
The Time Code and Date/Time data are
written here, separate from the video data.
This enables you to display the date and
time during playback, even if they weren't
displayed while recording.
2 Video Area
The digital video signal is recorded here.
Luminance Signal (Y)
Colour Difference
Signal (R-Y/B-Y)
Chromatic
Analysis
12 tracks/frame
A/D
conversion
A/D
conversion compression
A/D
conversion
Tape direction
Sub-Code Area
Video Area
Audio Area
ITI Area
3
Audio Area
The digital audio signal is recorded here.
4
ITI (Insert and Tracking
Information) Area
Insert editing and post-recording editing
tracking signals are recorded here.
Recording by
rotating head
helical scan
Signal
5
EN