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US 8,997,251 B2Granted
Virtual write protection system
AssigneesHewlett-Packard Development Company, L.P., Samsung Electronics Co., Ltd.
InventorsCharles R. Weirauch, Sung-hee Hwang, Kyung-geun Lee
Life of this patent
Estimating the term…
Abstract
An optical medium containing virtual write protect information can be recorded in drives and systems without first changing the write protection from on to off by receiving valid user input. The virtual write protection may also be enabled or disabled by additional information on the disc.
Claims8
A method of recording on a medium without modifying write protection on said media comprising:
- determining whether the medium is write protected based on the medium being write protected, determining whether a user password is required;
- receiving a user password if the user password is determined to be required;
- determining whether the user password is valid;
- based on the user password being valid, collecting a virtual protection indicator from the medium;
- determining whether the virtual write protect indicator indicates virtual write protection for the medium;
- receiving user input to allow recording to the medium if the virtual write protection indicator indicates virtual write protection;
- and
- recording to the medium based on the medium being write protected, the user password being valid, the virtual write protection indicator indicating virtual write protection, and the user input being received.
5 more elements
A drive for a recordable medium, comprising:
- a controller that:
- based on whether the medium is write protected, determines whether a password is required and receives a user password if the user password is determined to be required and determines whether the user password is valid;
- based on the user password being valid, collects a virtual protector indicator from the medium and determines whether the virtual write protection indicator is indicative of virtual write protection for the medium;
- based on the virtual write protection indicator being indicative of virtual write protection for the medium, receives user input to allow recording of the medium;
- causes the medium to be recorded to based on the user input being received, the medium being write protected, the user password being valid, and the virtual write protection indicator being indicative of virtual write protection for the medium.
2 more elements
Dependencies are inferred from the claim text.