The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 26, 2012
Filed:
Nov. 12, 2009
Robert Stewart Fiske, Hopedale, MA (US);
Robert Stewart Fiske, Hopedale, MA (US);
Autonomy, Inc., San Francisco, CA (US);
Abstract
A data processing system stores data in a data file by first identifying the data file as a large file type known to require an amount of storage space substantially greater than a system allocation unit size. As data is to be written to the data file beginning at a location identified by a file pointer, the system determines whether it is necessary to allocate storage space of the data processing system to store the data to be written, and if so then commands are issued to the file system including (i) one or more first commands to set an end of file marker for the data file to a new value greater than a current value of the end of file marker by at least an application allocation unit size which is at least twice the system allocation unit size, and (ii) one or more second commands to mark a region of the data file extending between the current and new values of the end of file marker as holding valid data. Subsequently the data is written to the data file at the location identified by the file pointer.