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. 20, 2015
Filed:
Oct. 04, 2013
Altera Corporation, San Jose, CA (US);
Wei Li, Fremont, CA (US);
Weiqi Ding, Fremont, CA (US);
Altera Corporation, San Jose, CA (US);
Abstract
A receiver circuit includes a feedback filter having multiple taps for receiving a quantized signal and outputting a feedback signal and adaptation circuitry for adapting tap weights of the feedback filter. In one embodiment, the tap weights may be adapted with variable update resolution. In another embodiment, the feedback filter may have fixed and floating taps. Other embodiments relate to methods of equalizing an input signal using a feedback filter. In one embodiment, tap weights of the feedback filter are adapted using adaptation circuitry with variable update resolution. In another embodiment, the adaptation circuitry adapts fixed and floating tap weights of the feedback filter. Other embodiments and features are also disclosed.