Seagate Technology Incorporated

HonYeong Mak

UttHeng Kan

Edmun ChianSong Seng

DetHau Wu

LinNah Lim

Apparatus and methods are disclosed that regulate head fly height so as to compensate for variation in height of a disk surface. An exemplary apparatus includes a circuit that detects disk height variation in response to variation in the gain of a variable gain amplifier, within an automatic gain control loop, that amplifies a read signal as the head reads from the disk surface. The circuit regulates the head fly height so as to compensate for the detected variation in disk height.

Growing community of inventors

Singapore, Singapore

HonYeong Mak