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Re: BLANKITY-BLANK BLANKING
I recall several years ago, Accom issued a series of firmware fixes that
corrected PICTURE POSITION on the 2 bridges, so that it was unity consistent
across both conversions (no shifts in either process). This problem will, of
course, affect apparent blanking, but it was a picture phase issue.
You might want to check into that.....
>> OFFICE MEMO Time:
>> BLANKITY-BLANK BLANKING 01-24-96
>>We have noticed an anomaly with our ACCOM D-Bridge equipment that I
>>can't explain. If we take a D2 signal, decode it with a D-221 and
>>then re-encode it to D2 with a D-122, I get an extra 100-150ns of
>Bill, I don't know if it will help, but Accom supplied us with a modified
>PROM for the D122 to give us narrower blanking, so that we had some head
>room for Tape to Tape, editing etc. I seem to remember that it reduced
>blanking to around 10.6 uS.
>NEW jobs! and equipment! at http://www.alegria.com/telecinehome.html
>...mailing list is available as a digest; inquiries to rob at alegria.com
Phil Mendelson philm at hollydig.com
"Animals are our friends...............
but they won't take us to the airport."