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:
Oct. 25, 2011
Filed:
Jul. 30, 2008
Xingdong Dai, Whitehall, PA (US);
Geoffrey Zhang, Allentown, PA (US);
Max Olsen, Mertztown, PA (US);
Dwight Daugherty, Ephrata, PA (US);
Gary Schiessler, Allentown, PA (US);
Mohammad Mobin, Orefield, PA (US);
Lane Smith, Easton, PA (US);
Dennis Farley, Coopersburg, PA (US);
Xingdong Dai, Whitehall, PA (US);
Geoffrey Zhang, Allentown, PA (US);
Max Olsen, Mertztown, PA (US);
Dwight Daugherty, Ephrata, PA (US);
Gary Schiessler, Allentown, PA (US);
Mohammad Mobin, Orefield, PA (US);
Lane Smith, Easton, PA (US);
Dennis Farley, Coopersburg, PA (US);
Agere Systems Inc., Allentown, PA (US);
Abstract
In described embodiments, an adaptive equalizer employed by a receiver in a communication channel, such as Fibre Channel, employs pattern recognition. When a repeating pattern, such as an IDLE or ARBFF pattern, is employed by a standard to, for example, maintain a communication link, an equalizer of the receiver might adaptively set its equalizer parameters based on characteristics of the signal energy of the repeating pattern rather than adaptively set its equalizer parameters based on characteristics of the signal energy of generally random user data carried on the link. Pattern recognition by the receiver allows for maintaining adaptive equalizer parameters at settings preferred for data detection of the typical random data, improving data detection performance of the receiver when the channel transitions from a preset or synchronization repeating pattern to a user random data pattern.