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. 01, 2014
Filed:
Jan. 30, 2012
Mohammad Mobin, Orefield, PA (US);
Amaresh Malipatil, San Jose, CA (US);
Adam Healey, Newburyport, MA (US);
YE Liu, San Jose, CA (US);
Mohammad Mobin, Orefield, PA (US);
Amaresh Malipatil, San Jose, CA (US);
Adam Healey, Newburyport, MA (US);
Ye Liu, San Jose, CA (US);
LSI Corporation, Milpitas, CA (US);
Abstract
A communication port and method of adapting a transmit filter in the port to reduce receive errors by a receiver coupled to the transmit filter via a communication channel. The filter has coefficients that are adjusted in response to a first adaptation gain value, decision bits, and receiver error values. During a first time period, the coefficients are adjusted until changes in the coefficients are less than a first threshold amount. Then during a second time period, the coefficients are adjusted using a second adaptation gain value until changes in the coefficients are less than a second threshold amount. The second adaptation gain value is less than the first adaptation gain value and the second threshold amount being less than the first threshold amount. By using two or more adjustment periods with different gain values, the filter is adapted faster than using a single adjustment period with fixed adaptation gain.