Digital signal reproduction apparatus
February 19, 2019. 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 ReferencesApparatus for detecting and correcting errors on product codes Method and apparatus for transmitting digital data Error correction method Apparatus for recording and reproducing data Code error detecting method Information reproducing method and apparatus for counting the number of errors and warning Recording apparatus Patent #: 5638386 InventorsAssigneeApplicationNo. 253616 filed on 02/19/1999US Classes:714/764, Error correct and restore714/758, Error correcting code with additional error detection code (e.g., cyclic redundancy character, parity)714/770Disk arrayExaminersPrimary: Tu, Trinh L.Attorney, Agent or FirmForeign Patent References
International ClassesG11C 029/00H03M 013/00 Foreign Application Priority Data1997-01-20 JPAbstractA quick retry operation is possible by outputting an error flag pertaining to a sector after error correction processing of digital data. When an output of an error detection flag unit for a correction block indicates the existence of an uncorrectable error, the sectors are checked to see if the sectors corresponding to retrieved data include any error or not based on output from a sector error flag register B. When the sectors are judged as error, signals are retrieved again from a storage medium, restored in a memory, and an error correction processing is repeated again. The data such as that of P pictures or B pictures of MPEG which can be reproduced even with errors are output even when the error detection flag unit indicates the existence of the uncorrectable error. It enables identification of the sectors with the errors and simplifies the following operations pertaining to the error at a data receiving side by outputting the error flag along with the data.Field of SearchError correct and restoreMemory access Error correcting code with additional error detection code (e.g., cyclic redundancy character, parity) Error correction during refresh cycle Forward correction by block code Double error correcting with single error correcting code Data formatting to improve error detection correction capability Dynamic data storage Disk array Tape Error/fault detection technique Parity bit Storage content error | |
