The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 04, 1994
Filed:
Mar. 04, 1992
Douglas A Gunther, Lakewood, CO (US);
Joe K Jurneke, Brighton, CO (US);
Brahim Lekmine, Denver, CO (US);
Donald L Millican, Westminster, CO (US);
Storage Technology Corporation, Louisville, CO (US);
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..