Apparatus and method for determining the erasability of data in a memory
AssigneeSony Corporation
InventorsTeppei Yokota, Nobuyuki Kihara
Life of this patent
Estimating the term…
Abstract
A recording apparatus for facilitating data erasure operations involving data recorded on a recording medium. Each piece of data recorded on the recording medium may be examined to determine whether it is rerecordable by determining whether the data is already stored in another storage medium. When data erasure is requested, erasure processing may be controlled in accordance with the result of the determination. For example, original data based on data captured by a microphone or a camera (namely, non-rerecordable data) may not be erased (without specific approval by the user). Conversely, rerecordable data copied from another recording medium such as a CD may be erased.
Claims23
An apparatus for determining erasability of data, said apparatus comprising:
- determining means for determining whether data stored in a first storage medium is re-recordable by determining whether the data is already stored in a second storage medium;
- comparing means for comparing a remaining storable capacity of said first storage medium with an amount of data stored in said second storage medium which is to be stored in said first storage medium;
- and
- control means for controlling an erase process for the stored data in said first storage medium according to the determination made by said determining means and the comparison result of said comparing means.
A method for determining erasability of data:
- determining whether data stored in a storage medium is re-recordable by determining whether the data is already stored in another storage medium;
- comparing a remaining storable capacity of said storage medium with an amount of data stored in said another storage medium which is to be stored in said storage medium;
- and
- controlling an erase process for the stored data in said storage medium according to determination and comparison results.
Dependencies are inferred from the claim text.