Invention Grant
- Patent Title: Circuits and methods for DFE with reduced area and power consumption
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Application No.: US12366843Application Date: 2009-02-06
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Publication No.: US08477833B2Publication Date: 2013-07-02
- Inventor: John F. Bulzacchelli , Byungsub Kim
- Applicant: John F. Bulzacchelli , Byungsub Kim
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Tutunjian & Bitetto, P.C.
- Agent Anne V. Dougherty
- Main IPC: H03K5/159
- IPC: H03K5/159

Abstract:
A 1/n-rate decision feedback equalizer (DFE) and method include a plurality of branches. Each branch includes a summer circuit configured to add a feedback signal to a received input, and a latch configured to receive an output of the summer circuit in accordance with a clock signal. A feedback circuit includes a multiplexer configured to receive as input, an output of each branch, the multiplexer having a clocked select input and configured to multiplex the output of each branch to assemble a full rate bit sequence, and a filter configured to provide cancellation of intersymbol interference (ISI) from the received input to be provided to the summer circuit of each branch.
Public/Granted literature
- US20100202506A1 CIRCUITS AND METHODS FOR DFE WITH REDUCED AREA AND POWER CONSUMPTION Public/Granted day:2010-08-12
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