US 7,499,238 B2
Systems and methods for improving disk drive synchronization
Viswanath Annampedu, Schnecksville, Pa. (US)
Assigned to Agere Systems Inc., Allentown, Pa. (US)
Filed on Sep. 22, 2006, as Appl. No. 11/534,265.
Prior Publication US 2008/0074778 A1, Mar. 27, 2008
Int. Cl. G11B 21/02 (2006.01); G11B 5/596 (2006.01); G11B 5/09 (2006.01)
U.S. Cl. 360—75  [360/77.04; 360/77.08; 360/51] 21 Claims
OG exemplary drawing
 
1. A system for governing position of a read/write head assembly in relation to a magnetic storage medium, the system comprising:
an interface circuit, wherein the interface circuit is operable to receive an information stream retrieved from a magnetic storage medium, and wherein the magnetic storage medium includes at least one track with at least a first sector and a second sector; and
a multiple sector error detection circuit, wherein the multiple sector error detection circuit is operable to receive a first sample of a portion of the first sector and a second sample of a portion of the second sector via the interface circuit, and wherein the multiple sector error detection circuit is operable to average the first sample directly with the second sample to create an indication of a head assembly location relative to the magnetic storage medium.