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:
Mar. 03, 2015
Filed:
Nov. 10, 2011
Ming-chieh Huang, San Jose, CA (US);
Jing Jing Chen, Los Angeles, CA (US);
Chan-hong Chern, Palo Alto, CA (US);
Tao Wen Chung, San Jose, CA (US);
Chih-chang Lin, San Jose, CA (US);
Yuwen Swei, Fremont, CA (US);
Ming-Chieh Huang, San Jose, CA (US);
Jing Jing Chen, Los Angeles, CA (US);
Chan-Hong Chern, Palo Alto, CA (US);
Tao Wen Chung, San Jose, CA (US);
Chih-Chang Lin, San Jose, CA (US);
Yuwen Swei, Fremont, CA (US);
Abstract
A Decision Feedback Equalizer (DFE) with programmable taps includes a summer configured to receive a DFE input signal. Delay elements are coupled to the summer. The delay elements are connected in series. Each delay element provides a respective delayed signal of an input signal to the delay element. A weight generator is configured to provide tap weights. The DFE is configured to multiply each tap weight to the respective delayed signal from the respective delay element to provide tap outputs. Each tap output is selectively enabled to be added to the summer or disabled based on a first comparison of a first threshold value and each impulse response or each tap weight corresponding to the respective tap output, where the impulse response is the DFE input signal in response to a pulse signal transmitted through a channel.