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. 15, 2001
Filed:
Sep. 11, 1998
Robert Andrew Kertis, Rochester, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An interleaved finite impulse response (FIR) filter apparatus is provided for data detection in a direct access storage device. The FIR filter includes a plurality of sample and hold circuits. Each sample and hold circuit samples an input signal sequentially at a clock rate. At least one set of multiple multipliers is coupled to the plurality of sample and hold circuits. Each multiplier multiplies a sample by a predefined value and provides a multiplier product at the clock rate. At least a pair of summing functions are coupled to the set of multipliers. Each summing function adds a predetermined combination of respective multiplier products and provides at least a pair of interleave outputs. Each of the interleave outputs is provided at less than the clock rate.