The available video/color processing and video timing and output remote control menus
are summarized below:
•
Proc
: Video Gain, Chroma, Pedestal and Hue are standard Proc Amp controls
affecting the entire signal. The Hue control gives phase rotation of the color vectors
in the manner of an NTSC composite Proc Amp.
•
Color Proc
: Use this control to target a particular color in a scene you wish to
change. Use the Target Hue and Sensitivity adjustments to pinpoint the exact
color to be adjusted. Then adjust the targeted color with the Luminance, Chroma,
Pedestal, and Hue color processing controls without affecting any other colors in
the scene.
•
Clip
: The Clip menu provides enabling of a Legalizer which insures signal levels
will not exceed those permitted in the composite domain. Thus its use can insure a
television transmitter will not be presented illegal video input. If set to Off or set
for Legal RGB, adjustments are grayed out and may not be changed. When set to
Y, Cr, Cb, controls for black and white clipping and chroma limiting are provided.
•
Timing
: The 7500’s comprehensive range of timing allows complete flexibility in
placement of the output picture relative to the applied reference input. A Frame
Synchronizer can be enabled to allow timing the signal to an external house
reference. Frame Delay can be set for up to three frame s of delay.
•
Video Out
: The Bypass selection takes the 7500 Proc Amp out of the video path by
routing the signal around it to the output. One of four internally generated test
signals may be selected to be sent to the output signal if needed. Embedded Audio
is removed from the HD SDI stream when Strip is selected in the Strip Audio
window. There are Wide, and Narrow vertical blanking choices. Wide gives
blanking through line 20 (NTSC) or line 22 (PAL), while narrow produces blanking
through line 9 (NTSC) or Line 6 (PAL) of both fields.
•
Trims
: Cb and Cr offsets allow black balance to be corrected while Cb and Cr
gains permit trimming of levels on these two axes. Y/C delay allows the operator to
correct inaccuracy of timing of color information relative to luminance. These trims
are functional regardless of the input or output formats in use.
•
Memory
: Up to five configurations of the 7500 may be saved into memory
registers for later recall. All parameters – gains, input format, filters, blanking,
etc. - are saved in each memory. The 7500 for HD SDI Input can be used with
audio disembedding, channel swapping and re-embedding in a particular applica-
tion. In another application other audio parameters can be adjusted for a particu-
lar configuration. These two setups could be stored in memory registers and one or
the other recalled for instant restoration of the required configuration.
7500-8
Model 7500 HD Video Proc Frame Sync