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:
Mar. 02, 2010
Filed:
Aug. 30, 2006
King Wai Thomas Lau, Santa Clara, CA (US);
King Wai Thomas Lau, Santa Clara, CA (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
A servo field preamble detector includes an upsampling module that generates a plurality of upsampled read samples by upsampling a read signal by an upsampling factor. An interpolation filter module generates a plurality of interpolated read samples from the plurality of upsampled read samples. A peak detection module identifies a plurality of peak samples from the plurality of interpolated read samples. A magnitude estimation module generates a magnitude estimation signal from the plurality of peak samples. A comparison module compares the magnitude estimation signal to a magnitude threshold and asserts a servo preamble detection signal when the magnitude estimation signal compares favorably to the magnitude threshold.
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