Patent · US Active

Floating-tap decision feedback equalizer

US9025656B1 · kind B1 · utility

1Cited by

0References

16Claims

0Family size

Assignee

Altera Corporation · US

Inventors

Sangeeta Raman · San Jose, US
Tim Tri Hoang · San Jose, US
Wilson Wong · San Francisco, US
Jie Shen · Fremont, US

Key dates

Filing date	Dec 13, 2013
Grant date	May 5, 2015
Priority date	—
Expiry date	Dec 13, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2025/03585
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

The present disclosure provides a floating-tap decision feedback equalization (DFE) circuit. In an exemplary implementation, the floating-tap DFE circuit may include a high-speed shift register, a deserializer and data selector, a bypass deserializer, a high-speed multiplexer and a tap generation circuit. In one aspect of the invention, the floating-tap DFE circuit may advantageously cover an entire tap range beyond a fixed tap range without holes over a range of data rates. Other embodiments, aspects and features are also disclosed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.