Just a guess but since virtual keyboards have been around for a long time now, my guess is that they have patented the flyover which shows what key your finger/pen is pressing. Since the keyboard keys are much smaller than a normal keyboard, ones fingers often cover more than one key and the flyover shows what key you really pressed without having to look away from the keyboard area and over to the text input area.
So much of what gets patented these days is something that an engineer , worth his/her weight in salt, can figure out as a solution to the problem.
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maybe the key flyover is their 'invention'?
Just a guess but since virtual keyboards have been around for a long time now, my guess is that they have patented the flyover which shows what key your finger/pen is pressing. Since the keyboard keys are much smaller than a normal keyboard, ones fingers often cover more than one key and the flyover shows what key you really pressed without having to look away from the keyboard area and over to the text input area.
So much of what gets patented these days is something that an engineer , worth his/her weight in salt, can figure out as a solution to the problem.