PBL
And how do we know they weren't designed by the very same people?
As far as the Autothrottle side of things (you know, the throttles actually MOVING in response to autothrottle action, how novel
), that was designed by the Elliot part of the Anglo-French AFCS consortium. (This then became Marconi-Elliot, and then GEC-Marconi, and finally part of BAe Systems). I doubt very much if this is in anyway connected with Airbus at all. (I know,...Duh!!).
As far as the Concorde engine power control philosophy, well this was Rolls-Royce, through and through, with some BAe input, so again I think you can rule that out too.
Basically PBL, I would say that in answer to your question, we can say that they were definately not, thank goodness
... (Naughty boy, Dude
). Bearing in mind of course that the current Airbus philosophy can be traced back to the early A320s.... not a Roller in sight there.
Best Regards
Dude