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Author Topic: How a Stupid Patent Killed the Amiga  (Read 8327 times)

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Offline maw2k

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Re: How a Stupid Patent Killed the Amiga
« on: November 12, 2011, 01:20:36 AM »
its not a news, its written on http://de.wikipedia.org/wiki/Amiga_CD32

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In den USA durfte das CD³² aufgrund eines Lizenzstreites offiziell nie  verkauft werden und so blieben die Geräte in den Fabriken in Asien  zurück. Einige Händler aus Asien verkaufen seit 2006 noch einige  Restbestände mittlerweile über ein bekanntes Auktionshaus. Das CD³² war  eines der letzten Hardware-Produkte, das die Firma Commodore  veröffentlichte, bevor sie Konkurs anmelden musste.
some dealers got hardware over the Canadian border but not in such a big amount to save Commodore :(  you can even see today sometimes dealers from Asia with brand new CD32 on ebay

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Patent #4,197,590 covers the concept of an "XOR cursor". In the early days of windowing systems (especially with bitonal displays), it was common to represent your cursor as a small bitonal bitmap. When you want to display the cursor, you exclusive-or (XOR) it into the pixels of the desktop. This insures that the cursor is always visible: the cursor is black on white, or white on black. And when you wish to hide or move the cursor, you XOR it again, and the original image is restored. Fairly obvious. But if you write the code, you are in violation of patent #4,197,590.
source: http://www.horrorseek.com/home/halloween/wolfstone/Logistics/logpat_StupidPatents.html

http://www.amiga.org/forums/archive/index.php/t-25333.html  :)
« Last Edit: November 12, 2011, 01:26:47 AM by maw2k »
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