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- From: johnston@me.udel.edu (Bill Johnston)
- Subject: Re: Time to boycott Photo CD
- Message-ID: <Btt3nu.5py@news.udel.edu>
- Sender: usenet@news.udel.edu
- Nntp-Posting-Host: me.udel.edu
- Organization: University of Delaware
- References: <1992Aug27.191008.8372@kodak.kodak.com> <FRIEDMAN.92Aug29214928@nutrimat.gnu.ai.mit.edu> <17pj4fINNm8i@early-bird.think.com>
- Date: Sun, 30 Aug 1992 17:09:30 GMT
- Lines: 40
-
- In article <17pj4fINNm8i@early-bird.think.com> barmar@think.com (Barry Margolin) writes:
- >In article <FRIEDMAN.92Aug29214928@nutrimat.gnu.ai.mit.edu> friedman@gnu.ai.mit.edu (Noah Friedman) writes:
- >> Axman's message suggests that the data format or the conversion
- >>algorithm may be patented as well as (in its details) trade secret. This
- >>means that even if we figure out how to do the job (which may not be
- >>impossible), we'd be sued for implementing it.
- >
- >How can something be "patented as well as trade secret", when the two are
- >mutually exclusive? A patent by definition makes the details public, while
- >a trade secret requires that you guard the details (anyone you disclose
- >them to must agree to keep your secret).
-
- Photo-CD involves more than one ``new'' idea, just like a new
- car or a new computer. Some ideas are patentable; some more
- appropriately copyrightable.
-
- My understanding is that the patentable part involves a rewritable
- CD format, and the hardware differences needed for CD readers to
- recognize a disk that has the equivalent of several file system
- partitions.
-
- The photographer may send a couple of rolls of film to be developed
- and printed as 300 meg to a Photo-CD CD ROM. Later on, the photographer
- may send another roll of film along with the CD back to Kodak for another
- few hundred meg of prints.
-
- The data format of individual digitized images to be used by Kodak
- may be proprietary -- I don't know. But the talk of "beating"
- Photo-CD by reverse-engineering digital photos of checkerboards
- and stripes really misses the point. It can and should be done,
- of course, but this is more like a case of "beta vs. VHS".
-
- My bet is that CD media will become cheap enough that rewriting
- will not be seen as a major advantage compared to the hassle of
- trying to convert the marketplace over to a new, incompatible
- hardware standard. In this case, Photo-CD will die a natural
- death.
- --
- -- Bill Johnston (johnston@me.udel.edu)
- -- 38 Chambers Street; Newark, DE 19711; (302)368-1949
-