JVC GR-DLS1 ユーザーズマニュアル
8
EN
ABOUT DV
The digital video camera converts incoming audio and video signals into digital form for recording.
A video signal is composed of a luminance signal (Y) and color signals (R-Y and B-Y). These signals are
identified and recorded digitally (Digital Component Recording). The A/D (Analog to Digital) converter
samples the Y signal at 13.5 MHz, and R-Y and B-Y at 3.375 MHz, and changes them to an 8-bit quantum signal.
identified and recorded digitally (Digital Component Recording). The A/D (Analog to Digital) converter
samples the Y signal at 13.5 MHz, and R-Y and B-Y at 3.375 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.
to a 12-bit signal.
NOTE:
The data recorded on a tape is digital, but the output of this camcorder is analog.
3
Audio Area
The digital audio signal is recorded here.
4
ITI (Insert and Tracking
Information) Area
Information) Area
Insert editing and post-recording editing
tracking signals are recorded here.
tracking signals are recorded here.
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.
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.
10 tracks/frame
A/D
conversion
A/D
conversion
A/D
conversion
AUDIO
Color Difference
Signal (B-Y)
Signal (B-Y)
Recording by
rotating head
helical scan
rotating head
helical scan
Tape direction
Sub-Code Area
Video Area
Audio Area
ITI Area
5.24 mm / 1/5"
6.35 mm / 1/4"
This camcorder separates the data into blocks, writing one block of each data type on each track of the tape.
VIDEO
Chrominance (C)
Luminance Signal (Y)
Color Difference
Signal (R-Y)
Signal (R-Y)
Lens
Mic
Chromatic
Analysis
Signal
compression
A/D
conversion
Head tracking direction