ERROR CORRECTING DEVICE, ERROR CORRECTING METHOD AND DISK SYSTEM
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United States of America Patent
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Issued Date -
Aug 21, 2008
app pub date -
Feb 12, 2008
filing date -
Feb 20, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
There is provided an error correcting device, including: a demodulation circuit that reads data from an optical disk and demodulates the data to generate demodulated data; a PI syndrome generation circuit that generates a PI syndrome of the demodulated data and outputs the PI syndrome to an external memory; a PO syndrome generation circuit that generates a PO syndrome of the demodulated data and outputs the PO syndrome to the external memory; and an error correcting circuit that reads the PI syndrome and the PO syndrome from the external memory and performs error correction on the demodulated data stored in the external memory, based on the syndromes.
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