05311376 is referenced by 19 patents and cites 8 patents.

An integrated servo system for a disk drive employing sector servo positioning information on concentric tracks of a recording medium utilizes a servo burst pattern with three sequentially occurring servo bursts. One burst is positioned to have a maximum amplitude plateau on a track centerline of alternate tracks, and the other two bursts have maximum plateau values at locations between the centerlines of adjacent tracks. The amplitudes of the bursts are sequentially detected by a peak detector and supplied to sample and hold circuitry for measuring their relative amplitudes. Discriminator circuitry utilizes a window to provide two samples of each transition in the servo pattern and compares the samples to detect different fields and events in the pattern.

Title
Information detecting system
Application Number
7/714102
Publication Number
5311376
Application Date
June 11, 1991
Publication Date
May 10, 1994
Inventor
Min Hui Wang
Diamond Bar
CA, US
Robert P Mento
El Toro
CA, US
Marshall D Lee
Newport Beach
CA, US
Takashi Asami
Huntington Beach
CA, US
Richard W Hull
Laguna Hills
CA, US
Michael R Spaur
Irvine
CA, US
David B Joan
Trabuco Canyon
CA, US
Agent
Skjerven Morrill MacPherson Franklin and Friel
Assignee
Western Digital
SG
IPC
G11B 5/09
H03K 17/00
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