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:
Apr. 20, 2004

Filed:

Feb. 28, 2000
Applicant:
Inventors:

Ivan Chan, Kanata, CA;

Russell W. Brown, Nepean, CA;

Mehran Aliahmad, Ottawa, CA;

Assignee:

Maxtor Corporation, Longmont, CO (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03D 1/04 ; H04B 1/10 ; H04L 2/508 ;
U.S. Cl.
CPC ...
H03D 1/04 ; H04B 1/10 ; H04L 2/508 ;
Abstract

An apparatus mitigates inter-symbol interference effects on an oscillating signal from which digital data will be obtained at a receive end of a channel. The inter-symbol interference is introduced into the oscillating signal as a result of transmitting the oscillating signal through the transmission channel over a substantial distance from a transmit device to the receive end of the channel. A filter element receives an input signal from the transmit device and outputs a filtered signal within a predetermined frequency band. The filter element has a mechanism for adjusting a gain for a given range of frequencies within the predetermined frequency band. The given range of frequencies corresponds to higher frequencies in the predetermined frequency band. An amplitude determining mechanism determines a peak amplitude of the filtered signal. A boost gain control mechanism controls adjustments to the high frequency gain so that the peak-to-peak amplitude of the filtered signal is maintained within a predetermined amplitude range.


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