Dynamic information storage or retrieval – Binary pulse train information signal – Binary signal gain processing
Patent
1992-03-04
1994-01-04
Sniezek, Andrew L.
Dynamic information storage or retrieval
Binary pulse train information signal
Binary signal gain processing
369 60, 369 4434, 360 45, G11B 700
Patent
active
052766667
ABSTRACT:
A circuit and method for correcting peak signal shifts in analog signals representing binary data bits that avoids the need for write precompensation techniques. Three different sample values (an early, on-time, and late) are computed for the signal representing each read bit. The on-time signal value of each data bit of an n-bit sequence is used if no data corruption is detected. If a corrupted data bit is detected due to an early or late peak signal shift of an adjacent binary 1, the early or late signal value of the corrupted data bit is used rather than the on-time signal value of the corrupted bit. The corrected data bit sequence is then passed on to a utilization circuit, such as a read data detector, which uses error correcting techniques and the like to determine with precision whether each data bit is a binary 1 or a .0..
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patent: 3719934 (1973-03-01), Behr et al.
patent: 3735372 (1973-05-01), Coccagna
patent: 3810232 (1974-05-01), Aghazadeh
patent: 4742403 (1988-05-01), Troletti
patent: 4885645 (1989-12-01), Hashimoto
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Gunther Douglas A.
Jurneke Joe K.
Lekmine Brahim
Millican Donald L.
Edun Muhammad N.
Sniezek Andrew L.
Storage Technology Corporation
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