Reply to post: Re: I liked the BBC campaign...

Smartphones aren't tiny PCs, but that's how we use them in the West

Charles 9 Silver badge

Re: I liked the BBC campaign...

These QR Codes work because they can be built with error codes that allows part of the barcode to be mangled and still be readable. If you see a barcode with a logo in the middle, it's relying on the error code to recover the spot the logo covers up.

POST COMMENT House rules

Not a member of The Register? Create a new account here.

  • Enter your comment

  • Add an icon

Anonymous cowards cannot choose their icon


Biting the hand that feeds IT © 1998–2020