| audiousername |
| quote: | Originally posted by Geek
Good to know whos toes I'm stepping on ;) |
I don't know about Geek people stepping on patent-holder's toes... but I am rather surprised that some of these patents have toes at all.
The 2nd patent from the first link Circlotron posted, "Vacuum Tube Differential Preamplifier" seemed to quite accurately describe the Western Electric transformer-coupled line driver circuit (well... to me anyway) from... who knows when: two valves mounted in differential with an output transformer. Yet it is an "invention" from... 1998
I am not accusing the patent of being invalid, just rather confused. And I do not want to be sued... Lots of other confusing patents exist as well. I suppose it isn't the aim of a patent to explain the invention clearly, but rather to explain it as vaguely as possible to help protect it. |
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