Re: 1571/1581 Sources: Macro WDTEST inserting NOP before reading WD177x status register / writing command register

Because they got sued for non payment of the license fees for the patent
and prevented from importing any products into the US that included the
infringement.

On 16/03/2022 22:07, Rainer Buchty wrote:
> How so? I have a hard time seeing how the so-called XOR patent (USPTO
> #4,197,590) would've particularly affected Commodore in 1993, more so
> as it was already filed in 1976 and originally assigned in 1981 before
> being reassigned in 1989 and 1993.
>