Tim wrote:
Mike McCarty:Actually, usually to remove MacroVision, one needs to *remove* the "extra" sync pulses it puts in. :-)It probably would have been best if I'd described the restoration technique more accurately: You replace the syncs signal *and* vertical blanking period. That takes care of almost everything in one go.
Yep, thus effecting black level restoration as well. [snip]
There is a simple circuit which needs a couple of pots adjusted which kills most versions of MacroVision pretty handily. I haven't built it, but I've looked over the circuit, and it should work. http://www.hobby-electronics.info/projects/MacrovisionKiller.htmlHmm, output stage looks a bit simple, but a quick perusal at it looks like it'd do the job. The kit I built was really only designed to make
Yeah, I didn't like the output stage, either. It consumes a *lot* of power. It would be much better with active pull-up, or even just an emitter follower output stage. He's creating a 75 ohm output impedance, and wasting a lot of power doing so. Also, I'd rather have a couple of crystal controlled counters than one-shots controlled by pots. Its one big advantage is being cheap and easy to build. [snip]
DRM - Deny Replaying of Material...
:-)
Mike
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