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Per Westermark
03/15/10 01:37
Read: 194 times
Sweden


 
#174145 - Yes
Responding to: James Hinnant's previous message
On one hand, a file format can be undocumented, in which case it is hard for competitors to create compatible files, or to read existing files.

On the other hand, a manufacturer can request royalty payments for selling information about the file format, or from companies that are creating compatible files by having reverse-engineered the information.

Guess why so few applications can process the classical, pre-XML, Excel or Word documents?

A file format is a form of pattern, so copying the file format is similar to copying the look-and-feel of an application, and may represent a copyright violation.

If you are really unlucky, a file format may also make use of patented algorithms. Remember the GIF file format, where Unisys took a very long time until they started to request royalties for the use of the LZW compression algorithm.

List of 39 messages in thread
TopicAuthorDate
SDCC download      Erik Malund      03/05/10 11:53      
   Here you go...      Robert Revens      03/05/10 12:13      
   newest      Jan Waclawek      03/05/10 12:30      
      Has any effort gone into documentation?        Richard Erlacher      03/05/10 18:20      
         documentation      Jan Waclawek      03/06/10 03:16      
            Just to add...      Robert Revens      03/06/10 04:02      
               more howto-s      Jan Waclawek      03/06/10 05:13      
                  the first 'oddity' is ...      Erik Malund      03/06/10 06:46      
                     I think you dreamt that one eric      Jez Smith      03/06/10 07:27      
                        No - it's a well-known Gotcha! in SDCC!      Andy Neil      03/06/10 11:46      
                           Reference: ISRs (or prototypes) must be in same file as main      Andy Neil      03/07/10 01:04      
                     linking      Jan Waclawek      03/06/10 14:36      
                        I see it not correct      Erik Malund      03/06/10 14:51      
                           I don't understand      Jan Waclawek      03/06/10 15:04      
                              what is it you do not understand?      Erik Malund      03/07/10 07:11      
                                 Does it not recognise...      Andy Neil      03/07/10 07:25      
                                 Surely not...      Robert Revens      03/07/10 08:42      
                                    "magic"      Jan Waclawek      03/07/10 10:44      
                                       That's not the fault of 'C'!!      Andy Neil      03/07/10 13:14      
                                       highly unusal, but      Erik Malund      03/07/10 18:42      
                                       Try java etc      Oliver Sedlacek      03/08/10 07:54      
                                 I now see why is this confusing      Jan Waclawek      03/07/10 10:27      
               emulation?      Andy Peters      03/11/10 15:53      
                  Source-level debug      Robert Revens      03/11/10 16:15      
                     symbol information      Maarten Brock      03/12/10 04:05      
                        re: symbol information      Andy Peters      03/15/10 18:40      
                           hex-file download?      Maarten Brock      03/16/10 05:46      
                              hex vs omf      Andy Peters      03/16/10 12:08      
                     Keil proprietary stuff?      Andy Neil      03/12/10 05:01      
                        extended omf51      Juergen Christoph      03/12/10 07:11      
                           omf51 vs cdb      Jan Waclawek      03/15/10 16:48      
                        proprietary file format?      James Hinnant      03/15/10 01:22      
                           I don't see why not      Andy Neil      03/15/10 01:33      
                              So, what do *you* mean by, "proprietary" ?      Andy Neil      03/16/10 02:15      
                                 AutoCAD      Per Westermark      03/16/10 03:15      
                           Yes      Per Westermark      03/15/10 01:37      
                              patentable vs proprietary      James Hinnant      03/15/10 23:39      
                                 Proprietary is a questin of ownership, not protection      Per Westermark      03/16/10 01:06      
   bouncing email      Maarten Brock      03/07/10 14:38      

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