Invention Grant
- Patent Title: Partial response decision feedback equalizer with selection circuitry having hold state
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Application No.: US14575985Application Date: 2014-12-18
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Publication No.: US09432227B2Publication Date: 2016-08-30
- Inventor: Amir Amirkhany , Kambiz Kaviani , Aliazam Abbasfar
- Applicant: Rambus Inc.
- Applicant Address: US CA Sunnyvale
- Assignee: Rambus Inc.
- Current Assignee: Rambus Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Peninsula Patent Group
- Agent Lance M. Kreisman
- Main IPC: H03K5/159
- IPC: H03K5/159 ; H04L25/03 ; H03K5/24

Abstract:
A partial response decision feedback equalizer (PrDFE) includes a receiver including at least first and second comparators operative to compare an input signal representing a sequence of symbols against respective thresholds and to respectively generate first and second receiver outputs. A first selection stage is provided to select (a) between the first comparator output and a first resolved symbol according to a first timing signal, and (b) between the second comparator output and the first resolved symbol according to the first timing signal, to produce respective first and second selection outputs. A second selection stage selects between the first and second selection outputs according to a selection signal. The selection signal is dependent on a prior resolved symbol that precedes the first resolved symbol in the sequence.
Public/Granted literature
- US20150103876A1 PARTIAL RESPONSE DECISION FEEDBACK EQUALIZER WITH SELECTION CIRCUITRY HAVING HOLD STATE Public/Granted day:2015-04-16
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