the answer to your question is yes.
a quote from an article from www.asiaweek.com(with an interesting looking mp3 player
on it)
http://www.asiaweek.com/asiaweek/technology/2000/0428/cover3.html
The secret of the success of the floppy (and the CD and video cassette as well) was
universality. But the market for flash memory cards is fragmented between several
competing formats. Sony's purple, chewing gum-sized Memory Stick is perhaps the best
known to consumers, but Panasonic and Toshiba are trying to rally the industry around
their competing SD (Secure Digital) card. Other formats include the wafer-thin
SmartMedia cards used in MP3 players and Olympus and FujiFilm's digital cameras, and
the thicker, matchbook-sized CompactFlash cards favored by Kodak, Nikon and Canon. All
four are mutually incompatible, so it's no good trying to jam the card from your Nikon
camera into Sony's Cyberframe.
On Sun, Jun 17, 2001 at 08:03:04PM -0400, las wrote:
>
> the configuration of the actually memory chip, it would seem to me that Sony
> could not be granted a patent for the chip itself only a copyright for the
> plastic case.
>
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