The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 2015
Filed:
Apr. 01, 2013
Marvell International Ltd., Hamilton, BM;
Hongwei Song, Longmont, CO (US);
Zining Wu, Los Altos, CA (US);
Marvell International Ltd., Hamilton, BM;
Abstract
A channel decoder includes a demodulator, a filter, a detector module, and first and second circuits. The demodulator receives an input signal based on data read from a storage medium, and demodulates the input signal to generate a data signal. The filter generates equalized data based on the data signal. The detector module executes a Viterbi algorithm based on the equalized data to generate estimates of data originally stored in the storage medium, and based on the execution of the Viterbi algorithm, generates a first and second sets of depths. The first set of depths includes depths larger than depths in the second set of depths. The first circuit generates a first error signal based on the first set of depths. The second circuit generates a second error signal based on the second set of depths. The filter generates the equalized data based on the first and second error signals.