Originally Posted by tteich
Don't get me wrong, I'm not questioning your statements. It's just that (til now) I've been under the impression that the first encoders were analog-only (and did not employ motion detection). The sub-band generation and filtering can be done in the analog domain. Now I'm anxiously waiting for the book
I understand what you are saying, but it has always been digital - MUSE, in the beginning (circa 1984), had different sampling rates and such, but it's always been digital and had digital motion detection and sub-sampling... that diagram I posted comes from NHK's 1987 IEEE paper introducing MUSE. Problem is, the NHK has always called it an "analog transmission system", which it is - PAM signals carried in an analog (FM) form - but the actual coding/spectrum folding and such has always been digital.
Have I sent you any tech papers? I have some very early stuff - the 1970's from NHK - going into initial transmission concepts - they, at one point, were considering an AM-based Composite Half-Line-Offset PAL system! It had like 24-MHz of bandwidth! Then TCI (Time-Compression-Integration) for FM satellite - then, around 1984, MUSE came about with digital processing.
One thing I HATE about posts like this - just 'reading' these posts - the back and forth between us - "looks" like there is some argument or something when that is NOT the case - just sharing of information. Sometimes I think that's why so many people end up 'forum enemy's' on AVS.
One thing that is funny about MUSE is, back in the day, MUSE was always said to be MUCH, MUCH too complex
and relied too much on expensive memory chips and stuff - in other words, it was so
complex the cost would never really come down to allow a mass-market high-definition system... Now we have stuff like VC-1 available on super-low cost HD-DVD and Blu-ray players - and cheap media - and MUSE looks elementarily simple by comparison! I think a MUSE encoder/decoder could be built easily in software with todays processors and memory available on home PC's.
Oh, I found a MUSE paper that will fit on AVS Forum - this gives info on NarrowMUSE, MUSE-6 and MUSE-9 - all three formats were meant for OTA broadcast in America. The NHK didn't really like MUSE-6 - when ClearVision and Wide ClearVision were in development in Japan, NHK didn't even bother with trying to get MUSE-6 accepted.
BTW, I can't wait till you get the book - then we can chat about all the cool stuff in it! I've never known anyone else with it.
MUSE Family Development.pdf 499.29296875k . file