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US 9,430,679 B2Granted
Display device and method aiming to protect access to audiovisual documents recorded in storage means
AssigneeThomson Licensing
InventorsOlivier Horr, Pierre Salmon
Life of this patent
Estimating the term…
Abstract
A display device and method aiming to protect access to audiovisual documents recorded in a memory. The display device includes a setting device for setting a masking threshold of the documents. The display device further includes a masking device for masking recorded documents the seniority of which in the memory is greater than the masking threshold.
Claims21
An apparatus for protecting access to stored data, the apparatus comprising:
- a storage for storing said data and metadata associated with the data, the storage including:
- a masking range for said data, said masking range identifying a time period during which data obtained within the identified time period and stored in said storage is masked,
- wherein the metadata includes a time of recording of said stored data and, if the time of recording is outside said masking range, said stored data is unmasked, confidentiality of masked data recorded in said storage having a time of recording within the masking range is protected by:
- hiding the masked data recorded in said storage from display,
- updating a data pointer to point to a first non-masked data of a list of stored data recorded after the masked data and,
- authorizing display of the first non-masked data recorded in said storage on the list.
3 more elements
A method of protecting access to data stored in a storage space comprising:
- storing said data and metadata associated with said data in said storage space;
- setting a masking range for said data stored in the storage space, said masking range identifying a time period during which data obtained within the identified time period and stored in said storage space is masked,
- masking said data stored in said storage space when a time of recording of said data is within said masking range and unmasking said data stored in said storage space when the time of recording is outside said masking range, wherein said metadata associated with said data includes said time of recording of said stored data, wherein the masking of said data stored in the storage space protects confidentiality of masked data stored in the storage space by:
- hiding the masked data recorded in the storage space from display,
- updating a data pointer to point to a first non-masked data of a list of stored data recorded after the masked data, and
- authorizing display of the first non-masked data recorded in said storage space on the list.
3 more elements
Dependencies are inferred from the claim text.