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U.S. Patent Aug. 8, 2006 Sheet 3 0f 9 US 7,089,546 B2 FIG.3 FROM STEP S4(F|G.2) I THE CUSTOMER VISITS THE DEALER AND REQUESTS THAT THE HARD DISK BE REMOVED ~5101 I THE DEALER SENDS A COLLECTION REQUEST “'SI 02 I THE HARD DI SK IS COLLECTED FROM THE DEALER ~$103 I THE HARD DI SK I S UPGRADED AT THE REWRITI NG CENTER ~$1Q4 I THE HARD DISK IS RETURNED TO THE DEALER ~$105 I THE HARD DISK IS INSTALLED ~5106 AND RETURNED TO THE CUSTOMER
