Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Patent
1994-12-13
1998-08-04
Psitos, Aristotelis M.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
360 7704, G11B 2102, G11B 5596
Patent
active
057903409
ABSTRACT:
A head position controller computes position control information for locating the head on a target cylinder based on the head position information and the estimated position information of the head. Cylinder information recorded on the storage medium is made up of an address of a predetermined number of digits given for each cylinder and a correct address corresponding to a part of the cylinder address. The head position controller computes position control information based on the cylinder address when a first difference between a read signal of the cylinder address and a read signal of the correct address is within a fixed range, computes the position control information based on the cylinder address when the first difference is beyond the fixed range and a second difference between the cylinder address and the estimated position information of the head is smaller than a third difference between the correct address and the estimated position information of the head, and computes the position control information based on the estimated position information of the head when the second difference is larger than the third difference.
REFERENCES:
patent: 4149201 (1979-04-01), Card
patent: 5311379 (1994-05-01), Shinohara et al.
Gene F. Franklin et al., "Digital Control of Dynamic Systems", Addison-Wesley Publishing Company, pp. 250-255.
Neal Regina Y.
NEC Corporation
Psitos Aristotelis M.
LandOfFree
Head position controller of magnetic disk unit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Head position controller of magnetic disk unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Head position controller of magnetic disk unit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1184293