A method and apparatus for protecting file data is provided that combines or merges revision based backup with backup based on time intervals. One embodiment is directed to a method for protecting data contained in a file of a computer system, wherein the computer system is useable to create multiple...http://www.google.co.uk/patents/US20080256140?utm_source=gb-gplus-sharePatent US20080256140 - Method and apparatus combining revision based and time based file data protection
