This patent was asserted by Microsoft Corp. against TomTom. [Note: The claims listed are those claims surviving or amended by that Reexamination Certificate issued October 10, 2006.]
#99UMSDOS HOW−TO
Applies to Claims 1
Last updated: 2 months ago
Summary / Description
Summary / DescriptionUser guide for UMSDOS
 
Basic Information
Type of Prior ArtPrint Publication
 
Publication Title *UMSDOS HOW−TO
 
AuthorJacques Gelinas
 
ISBN
 
Page Range
 
MediumOther printed publication
 
Publication Date *December 1, 2001
 
URL
 
Notes / To Do
Notes
 
Excerpt
The Umsdos project was started in 1992 and made available to the net in January 1994 as a patch. It was included in the standard kernel distribution in July, starting with kernel 1.1.36. Umsdos use a special file in each subdirectory to achieve the translation between the extended capabilities (long name, ownership, etc...) of Umsdos and the limitation of the DOS file−system. This file is invisible to Umsdos users, but visible when you boot DOS. To avoid cluttering the DOS partition with those file (−−linux−.−−−) uselessly, the file is now optional. If absent, Umsdos behave like Ms−DOS.
Relevance
Claims
Long file name with signature

In a computer system having a storage, a directory service for accessing directory entries and a file system that uses the directory entries to access files, a method, comprising the computer-implemented steps of: (a) creating a first directory entry for a file wherein the first directory entry holds a short filename for the file and the location of the file; (b) creating a second directory entry for the file wherein the second directory entry holds at least one portion of a long filename having a fixed number of characters and a signature that identifies that the second directory entry holds a first portion of the long filename; (c) storing the first directory entry and the second directory entry on the storage among the directory entries used by the directory service; (d) accessing the second directory entry by the directory service to access the file; and (e) creating and storing in the storage a sequence of at least one additional directory entry for holding a next sequential portion of the long filename.
Relevance
A method of allowing long UNIX filenames and short MS-DOS filenames to coexist. However, the re-exam specifically addressed this type of prior art. The re-exam concluded that a file to translate between the filenames is not the same a separate directory entries for each filename.
A method of allowing long UNIX filenames and short MS-DOS filenames to coexist. However, the re-exam specifically addressed this type of prior art. The re-exam concluded that a file to translate between the filenames is not the same a separate directory entries for each filename.
Claim Chart
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