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System and method for reading and decoding encoded data from a storage device

A storage device, a technology for reading data, used in data recording, information storage, record information storage, etc.

Inactive Publication Date: 2018-08-14
MARVELL WORLD TRADE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not only do these systems require large memory for the read channel, but in the event that the read channel runs out of memory, the decoding of earlier input codewords has not yet finished decoding and may have to abort to flush out the Completed decoded codeword

Method used

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  • System and method for reading and decoding encoded data from a storage device
  • System and method for reading and decoding encoded data from a storage device
  • System and method for reading and decoding encoded data from a storage device

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Embodiment Construction

[0019] This disclosure describes an interface between a host controller and a read channel (RDC). This interface channel, located between the host controller (eg, hard disk controller) and the read channel, accommodates signaling for reading and decoding encoded data from the storage device. For purposes of illustration, the present disclosure is described in the context of a hard disk drive storage device. It should be understood, however, that the teachings of the present disclosure are equally applicable to any other electronic storage device (eg, solid-state drive, non-volatile storage device, or optical disk).

[0020] Systems and methods are provided for enhancing the performance of a hard drive read channel for reading and decoding data stored in a hard drive. Data is stored in various sectors of a hard drive. During a read operation, the host controller commands the read channel to read data from several different sectors of the hard drive. The data stored on the ha...

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PUM

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Abstract

Systems and methods of reading data from a storage device are provided. A first codeword and a second codeword are read from a storage device, where the second codeword is positioned after the first codeword. The first and second codewords are decoded in parallel, and the decoding of the second codeword completes before the decoding of the first codeword completes. The decoded second codeword and a signal indicating whether the decoding of the second codeword is complete are transmitted to control circuitry before the decoding of the first codeword completes.

Description

[0001] Cross References to Related Applications [0002] This disclosure claims the benefit of co-pending, commonly assigned, US Provisional Patent Application No. 61 / 665,127, filed June 27, 2012, which is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure relates to a method and system for reading and decoding data from a storage device. More specifically, the present disclosure relates to an optimized process for communicating decoded codewords read from a storage device to a host controller. Background technique [0004] The background description provided herein is for the purpose of generally presenting the context of the disclosure. The work of the inventors herein to the extent of the work described in this Background section, and aspects of this specification which may not have qualified as prior art at the time of filing, is neither expressly nor implicitly admitted as relative to this disclosure Content prior art. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B20/10
CPCG11B20/1217G11B20/1426G11B2220/2516
Inventor 盛宏鹰P·蔡钱纳冯格G·伯德
Owner MARVELL WORLD TRADE LTD