Patent ID: 9117472
Filing Date: 2015-08-25
Classification: G11B

Abstract:
1. An apparatus associated with processing a read signal produced from reading a storage medium of a storage device, the apparatus comprising: read logic configured to control the storage device to generate the read signal by reading a first layer and a second layer of the storage medium, wherein the first layer defines data and the second layer defines embedded position information, wherein the read signal is comprised of two separate signals that include a first signal that is the data and a second signal that is the embedded position information; data detection logic configured to process the read signal to recover the data by removing an estimate of the second signal from the read signal to produce a reproduction of the first signal; and servo logic configured to reproduce the embedded position information by subtracting the reproduction of the first signal that includes the data from the read signal, wherein the read logic is configured to control the storage device based, at least in part, on the embedded position information.