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Priority claimed from EP92106505Aexternal-prioritypatent/EP0565759B1/en
Application filed by IbmfiledCriticalIbm
Publication of MY108952ApublicationCriticalpatent/MY108952A/en
Signal Processing For Digital Recording And Reproducing
(AREA)
Abstract
A METHOD FOR DECODING F2F SIGNALS AS WELL AS A DEVICE FOR DECODING F2F SIGNALS READ FROM A MAGNETIC DATA CARRIER IS PROVIDED. THE SIGNAL READ FROM THE CARD BY A MAGNETIC READING HEAD 91 IS AMPLIFIED BY AN AMPLIFIER 912 WITH A VERY HIGH GAIN, DISCRIMINATED IN A DISCRIMINATION AND INTEGRATION STATION 913 TO RECEIVE A BINARY LOCKING SIGNAL. OUT OF THIS DIGITIZED SIGNAL IN A REFERENCE TIME ACQUISITION STATION 917 A START-UP TIME VALUE IS SET AND A PHASE IS ESTIMATED TO DETERMINE THE CORRECT END OF A BIT CELL IN A PHASE ESTIMATING STATION 918. IN A SYMBOL CORRECTION STATION 920 THE RECEIVED BINARY SIGNAL IS CORRELATED WITH ALL POSSIBLE SYMBOL COMBINATIONS BASED ON THE ESTIMATED PHASE TO CREATE A CORRECT BIT STREAM. THIS BIT STREAM MIGHT BE PROCESSED FURTHER BY A BIT RECOVERY STATION 922 PROVIDING A CORRECTED BIT STREAM READY FOR INTERPRETATION. (FIG. 9)
MYPI93000653A1992-04-151993-04-09Method and arrangement for decoding f2f signals read from a magnetic data carrier
MY108952A
(en)
Recording/reproduction apparatus and methods, input/output apparatus and methods, storage apparatus, transmission apparatus, and information processing apparatus and methods
Semiconductor memory card, apparatus for recording data onto the semiconductor memory card, and apparatus for reproducing data of the semiconductor memory card