Sensitivity correcting circuit of servo signal detection on data

Details Sensitivity correcting circuit of servo signal detection on data Sensitivity correcting circuit of servo signal detection on data

1992-04-28

1994-09-13

Koczo, Michael

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7705, G11B 5596

Patent

active

053474104

ABSTRACT:
A sensitivity correcting circuit offsets a data head outwardly from an ontrack position by a given quantity (X1), reads first and second servo information (A, B) to provide signals (V.sub.A, V.sub.B), and detects a difference (V1) between the peak values of the signals. Also, the system offsets the data head inwardly from the ontrack position by a given quantity (X2), reads the first and second servo information (A, B) to provide signals (V.sub.A, V.sub.B), and detects a difference (V2) between the peak values of the signals (V.sub.A,V.sub.B). The circuit then computes a proportional coefficient K according to the detected values (V1, V2), and according to the proportional coefficient, finds an offset specific to the data head. Or an offset measuring circuit comprises an offset detector for detecting offsets of data heads relative to a servo head according to servo information read by the data heads on data surfaces of the disk media; a measurement timing setting circuit for instructing the offset detector to start a detection process according to a predetermined time schedule; and an interrupter for interrupting, if the command control section decodes an access command such as a read or write command provided by the host unit, the offset detection process, executing the access command at first, and resuming the offset detection process after the access command is completed when the detection process by the offset detector is executed.

REFERENCES:
patent: 4766508 (1988-08-01), Mathewson
patent: 4833551 (1989-05-01), Song
patent: 5210662 (1993-05-01), Nishijima
patent: 5241433 (1993-08-01), Anderson et al.

Affiliated with

Also associated with

Rating

Sensitivity correcting circuit of servo signal detection on data does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sensitivity correcting circuit of servo signal detection on data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sensitivity correcting circuit of servo signal detection on data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1124565