Posts by D bex

How to strip pesky copyright watermarks from photos ... says a FACEBOOK photo bod

Explains why the photographer at a recent graduation I attended, was not too pleased to see the Art graduates taking pictures of any student that asked and telling them they would be posted on the art departments server for anyone to get a copy of !

Video thrilled the radio star: Tracking the history of magnetic tape

Re: Bendy heads

If the servo is working as it should the track is perfectly straight - used to make alignment tapes part of the process of setting up the master recorder involved taking a length of tape and "developing" using a fero-fluid.

The straightness of the tacks - spacing etc. was then measured to a fraction of a micron using a high power measuring Microscope, logging the x.y coordinates of 50 or so points down a few stripes. This was then fed to a Maths cad program to calculate how straight the tracks where etc.

Not a quick process, took an hour or so – not forgetting if wrong it was back adjusting the inlet/outlet guides etc, hence why good alignment tapes are so expensive.

( commercial VHS alignment tapes were like bananas in comparison, but still sufficient to set-up domestic VCR’s)

Samsung rolls out first mass-produced 3D NAND flash memory chip

Re: re. photo of V-NAND package

It’s not even a “prototype marketing” package its just something the graphic designer has created to look nice.

The clue is complete absence of bonding wires – between die and package – and from the die in BGA packages I have cut apart the connection points are in fact on the reverse side of the die making it impossible to mount in a ceramic dip package.