发明申请
US20070256000A1 REDUNDANCY PROTECTION FOR DATA RECORDED ACROSS MULTIPLE LAYERS OF RECORDING MEDIA 失效
记录介质多层记录数据的冗余保护

REDUNDANCY PROTECTION FOR DATA RECORDED ACROSS MULTIPLE LAYERS OF RECORDING MEDIA
摘要:
Improved reliability for multi-layer media is providing by the present invention. A data stream U is received for recording to a multi-layer rotating storage medium, the data stream U comprising a sequence of data bits. Each data bit U(J) is encoded into X representation bits. A first representation bit B(1,J) is recorded onto a first layer of the storage media, the second representation bit B(2,J) is recorded onto a second layer of the storage media, etc. When a request to read the recorded data U from the storage media is subsequently received, a plurality of the X representation bits are read back from the storage media and are decoded into the original data bit U(J). In one embodiment, encoding may be performed with a convolution encoding algorithm and decoding with a PRML decoding algorithm. In another embodiment, Reed Solomon encoding/decoding may be employed.
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