Invention Grant
- Patent Title: Partial response equalizer and related method
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Application No.: US14572590Application Date: 2014-12-16
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Publication No.: US09042438B2Publication Date: 2015-05-26
- Inventor: Chintan S. Thakkar , Kun-Yung Chang , Ting Wu
- Applicant: Rambus Inc.
- Applicant Address: US CA Sunnyvale
- Assignee: Rambus Inc.
- Current Assignee: Rambus Inc.
- Current Assignee Address: US CA Sunnyvale
- Agent Marc P. Schuyler
- Main IPC: H04L25/03
- IPC: H04L25/03 ; H04L7/00

Abstract:
A multi-phase partial response receiver supports various incoming data rates by sampling PrDFE output values at a selected one of at least two clock phases. The receiver includes a calibration circuit that performs a timing analysis of critical data paths in the circuit, and this analysis is then used to select the particular clock phase used to latch the output values. These techniques permit the multiplexer outputs from for each phase of the partial response receiver to directly drive selection of a multiplexer for the ensuing phase, i.e., by avoiding regions of instability or uncertainty in the respective multiplexer outputs.
Public/Granted literature
- US20150103875A1 Partial Response Equalizer and Related Method Public/Granted day:2015-04-16
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