Apparatus and method for detecting SYNC signals written on a disk memory device
Patent 6707626 Issued on March 16, 2004. Estimated Expiration Date: 
December 27, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 27, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesDisk drive circuit with partial match detection for predetermined bit sequence Radio selective calling receiver having battery saving function System and method for providing nonadjacent redundancy synchronization bytes Patent #: 6124994 InventorApplicationNo. 09748149 filed on 12/27/2000US Classes:360/51, Data clocking360/53Data verificationExaminersPrimary: Sniezek, Andrew L.Assistant: Colon, Rocio Attorney, Agent or FirmForeign Patent References
International ClassG11B 509AbstractAn apparatus and method for detecting synchronous (SYNC) signals written on a disk memory device is performed by dividing a reproduced SYNC pattern, which includes a predetermined number of symbols, into a plurality of groups. Each of the plurality of groups includes at least one symbol that overlaps a symbol contained in another group. The invention outputs a SYNC detected signal when the symbols of at least one of the divided groups match the symbol of the SYNC pattern. In order to detect the SYNC signal, the invention increases the number of symbols included in each of the divided groups even when a large defect exists in the disk memory device. | |
