This patent was asserted by Microsoft Corp. against TomTom.
#104UMSDOS HOW−TO
Applies to Claims 1
Last updated: about 1 year ago
Summary / Description
Summary / DescriptionUser manual 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 associated with short file name

In a computer system having a processor running an operating system and a memory means storing the operating system, a method comprising the computer-implemented steps of: (a) storing in the memory means a first directory entry for a file wherein the first directory entry holds a short filename for the file, said short filename including at most a maximum number of characters that is permissible by the operating system; (b) storing in the memory means a second directory entry for a the file wherein the second directory entry holds a long filename for the file and wherein the second directory entry includes an attributes field which may be set to make the second directory entry invisible to the operating system and the step of storing the second directory entry further comprises the step of setting the attributes field so that the second directory entry is invisible to the operating system, said long filename including more than the maximum number of characters that is permissible by the operating system; and (c) accessing the first directory entry with the operating system.
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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