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:
Dec. 15, 2009
Filed:
Jun. 26, 2002
Luke Kien LA, Los Angeles, CA (US);
Yaoyuan Tu, Cupertino, CA (US);
Yau-ting Mau, Fremont, CA (US);
Sonic Solutions, Inc., Novato, CA (US);
Abstract
A software driven method for recording multiple sessions on a rewritable DVD is provided. Examples include a software-driven method for appending data to rewritable DVD disc. A rewritable DVD disc for recording, wherein the rewritable DVD disc contains previously written data is received for appending data. A request to append new data to the rewritable DVD disc is received. A file system for the previously written data is located and includes a pointer to the start of the file system. The file system for the previously written data is then read. The file system is modified to continue pointing to files associated with the previously written data and to generate pointers to files of the new data. An updated file system and the new data to the rewritable DVD disc are logically written after the previously written data. The pointer of the file system is then modified to refer to the updated file system.