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:
Apr. 10, 2001
Filed:
Nov. 12, 1998
Applicant:
Inventors:
Assignee:
Quantum Corporation, Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06G 7/02 ; G06F 1/710 ;
U.S. Cl.
CPC ...
G06G 7/02 ; G06F 1/710 ;
Abstract
A single analog filter structure within a partial response channel combines an antialias low pass filter and a time domain waveform shaping equalizer upstream of a digital sampler. The filter also improves latencies associated with timing acquisition of a sampler clock generator loop by removing the latency of a separate equalization filter. The filter also provides a method for adapting a combination of internal filter state voltages and currents in real time for optimizing pole locations of the analog filter structure, during both data and timing recovery operations of the channel.