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.]
#95A Fast File System for UNIX
Applies to Claims 1
Last updated: 2 months ago
Summary / Description
Summary / DescriptionArticle that anticipates long filenames, having multiple directory entries for a single file, and having directory access routines to provide a consistent interface to both old and new file systems.
 
Basic Information
Type of Prior ArtPrint Publication
 
Publication Title *A Fast File System for UNIX
 
AuthorMARSHALL K. MCKUSICK, WILLIAM N. JOY, SAMUEL J. LEFFLER, and ROBERT S. FABRY
 
ISBN
 
Page Range
 
MediumJournal article
 
Publication Date *August 1, 1984
 
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Notes / To Do
Notes
 
Excerpt
5.1. Long File Names File names can now be of nearly arbitrary length. Only programs that read directories are affected by this change. To promote portability to UNIX systems that are not running the new file system, a set of directory access routines have been introduced to provide a consistent interface to directories on both old and new systems. 5.3. Symbolic Links The traditional UNIX file system allows multiple directory entries in the same file system to reference a single file. Each directory entry "links" a file's name to an inode and its contents.
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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
Anticipates long filenames, having multiple directory entries for a single file, and having directory access routines to provide a consistent interface to both old and new file systems.
Anticipates long filenames, having multiple directory entries for a single file, and having directory access routines to provide a consistent interface to both old and new file systems.
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