Dynamic magnetic information storage or retrieval – General processing of a digital signal – Head amplifier circuit
Patent
1994-10-27
1995-10-03
Psitos, Aristotelis
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Head amplifier circuit
360 7702, G11B 509, G11B 5596
Patent
active
054557208
ABSTRACT:
Positive and negative peaks of the differential pulses produced by a differential head of a disk drive are detected. The respective peaks, which represent the positive and negative peaks of the pulses, are compared to a set of reference levels and, depending upon the relationship of those peaks with the reference levels, a gain error or an offset error is indicated. If the positive pulse peaks and negative pulse peaks exhibit substantially similar relationships with respect to the reference levels, a gain error is indicated. However, if the positive pulse peaks and negative pulse peaks exhibit dissimilar relationships with respect to the reference levels, an offset error is indicated.
REFERENCES:
patent: 3959820 (1976-05-01), Braun
patent: 4085427 (1978-04-01), Dunn
patent: 4380034 (1983-04-01), Krake
patent: 4477849 (1984-10-01), Berger
patent: 4647992 (1987-03-01), Vinal
patent: 5153787 (1992-10-01), Sidman
Patent Abstracts of Japan, vol. 4, No. 118 (P-24), Aug. 1980 & JP-A-55 073970 (Fujitsu).
Frommer William S.
Fujitsu Limited
Kim W. Chris
Psitos Aristotelis
LandOfFree
Offset and gain error discriminator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Offset and gain error discriminator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Offset and gain error discriminator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1081305