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:
Jan. 13, 2009
Filed:
Sep. 29, 2003
Applicants:
Mark Hennecken, Parker, CO (US);
David J. Pereira, Thornton, CO (US);
Inventors:
Mark Hennecken, Parker, CO (US);
David J. Pereira, Thornton, CO (US);
Assignee:
Storage Technology Corporation, Louisville, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 13/03 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention combines low density parity checking with parallel equalization channels to enhance data retrieval from tape. Viterbi analysis is done as a precursor to the use of at least one low density parity decoder. A signal decoder may include a plurality of viterbi processors and at least one low density parity check decoder. The decoder may receive a plurality of pulse-shaped signals and produces decoded output signals.