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.

Date of Patent:
Feb. 17, 2015

Filed:

Oct. 31, 2013
Applicant:

Marvell International Ltd., Hamilton, BM;

Inventors:

Charles Pandana, Fremont, CA (US);

Mats Oberg, Cupertino, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 20/10 (2006.01); G11B 20/18 (2006.01);
U.S. Cl.
CPC ...
G11B 20/18 (2013.01);
Abstract

In a method of correcting a channel bit pattern that violates bi-phase modulation constraint in a bi-phase modulated portion of a high frequency modulation (HFM) signal, a sequence of channel bits is recovered from the HFM signal. The recovered sequence of channel bits is analyzed to generate a bi-phase modulation compliant sequence of channel bits based on the recovered sequence of channel bits, wherein the bi-phase modulation compliant sequence of channel bits does not violate the bi-phase modulation constraint in the bi-phase modulated portion of the HFM signal. Bi-phase modulated HFM bits are recovered from the bi-phase modulation compliant sequence of channel bits to generate a detection output corresponding to the recovered bi-phase modulated HFM bits.


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