Patent ID: 7253984

Claim:
A disk drive comprising: a rotatable data storage disk comprising a servo burst pattern in a single servo sector thereon, the servo burst pattern comprising at least a first pair of radially adjacent servo bursts and a second pair of radially adjacent servo bursts, wherein the first pair of radially adjacent servo bursts is circumferentially aligned with the second pair of servo bursts; a transducer that is configured to generate a read signal from the servo burst pattern on the disk; and a servo burst demodulator configured to determine a separate contribution to the read signal from the circumferentially adjacent ones of the first and second pairs of servo bursts and a separate contribution to the read signal from the radially adjacent ones of the first and second pairs of servo bursts, configured to generate a position error signal based on the determined contribution to the read signal from the radially adjacent ones of the servo bursts, and configured to generate a fly height signal based on the determined contribution to the read signal from the circumferentially adjacent ones of the servo bursts.