18364772. Data Read Synchronization from Phase Modulated Synchronization Fields in a Data Storage Device (Western Digital Technologies, Inc.)

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Data Read Synchronization from Phase Modulated Synchronization Fields in a Data Storage Device

Organization Name

Western Digital Technologies, Inc.

Inventor(s)

Richard Galbraith of Rochester MN (US)

Jonas Goode of Lake Forest CA (US)

Niranjay Ravindran of Rochester MN (US)

Iouri Oboukhov of Rochester MN (US)

Data Read Synchronization from Phase Modulated Synchronization Fields in a Data Storage Device

This abstract first appeared for US patent application 18364772 titled 'Data Read Synchronization from Phase Modulated Synchronization Fields in a Data Storage Device



Original Abstract Submitted

Example channel circuits, data storage devices, and methods for data read synchronization from phase modulated synchronization fields are described. A data synchronization detector may receive an oversampled digital read signal read from a synchronization field that uses a single written pattern to encode the start of data position, phase, and gain for the read channel. The write pattern may use a phase modulated carrier signal to encode a pseudo-random binary sequence indicating the start of data position.