Ensemble Designs 8500 Composite / SD Legalizer and Video Processing Frame Sync - Manual (Page 16)

• Blanking: There are Wide, Narrow or Custom 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. In the Custom mode any indi-
vidual lines from 9 through 23 may be selectively blanked, with different choices
allowed for each field. Some systems recognize position of the V-bit to control end
of blanking. In the 525 standard V-bit position can be set to line 10, line 20 or line
23. In 625 mode V-bit is fixed at line 23 as this is the only position permitted by
the 625 Standard.
• Memory: Up to five configurations of the 8500 may be saved into memory
registers for later recall. All parameters – gains, input format, filters, blanking, etc.
- are saved in each memory. The 8500 for SDI Input can be used with audio disem-
bedding, channel swapping and re-embedding in a particular application. In
another application it is used with composite input, noise reduction and embedding
of audio from an analog audio input source. These two setups could be stored in
memory registers and one or the other recalled for instant restoration of the
required configuration.
8500-16
Model 8500 Series Modules