Pipelined programmable feed forward equalizer (FFE) for a receiver
US9385898B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2013 |
| Grant date | Jul 5, 2016 |
| Priority date | — |
| Expiry date | Aug 30, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03885
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A programmable feed forward equalizer (FFE) includes a plurality of unit cells, each unit cell comprising a capacitive element coupled to an input connection by a first switch and coupled to an output connection by a second switch. The FFE also comprises clock logic configured to control the first switch and the second switch so that a selected voltage signal is applied to the capacitive element at a selected time such that the selected voltage signal defines a capacitance of the capacitive element, the clock logic causing the second switch to couple the capacitive element to the output connection so as to apply the selected voltage signal as a filter coefficient to a summing element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.