Invention Grant
- Patent Title: Adapative receiver with pre-cursor cancelation
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Application No.: US16671146Application Date: 2019-10-31
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Publication No.: US11240073B2Publication Date: 2022-02-01
- Inventor: Xun Zhang , Chaitanya Palusa , Dawei Huang , Muthukumar Vairavan , Jianghui Su
- Applicant: Oracle International Corporation
- Applicant Address: US CA Redwood Shores
- Assignee: Oracle International Corporation
- Current Assignee: Oracle International Corporation
- Current Assignee Address: US CA Redwood Shores
- Agency: Kowert, Hood, Munyon, Rankin & Goetzel, P.C.
- Main IPC: H04L25/03
- IPC: H04L25/03 ; H04B1/16

Abstract:
A data receiver circuit includes a summer circuit configured to receive an input signal that encodes multiple data symbols, and combine the input signal with a feedback signal to generate an equalized input signal, which is used to generate a clock signal. The data receiver circuit also includes multiple data slicer circuits that sample, using the clock signal and multiple voltage offsets, to generate multiple samples for a particular data symbol. A precursor compensation circuit included in the data receiver circuit may generate an output value for the particular data symbol using the multiple samples. The data receiver circuit also includes a post cursor compensation circuit that generates the feedback signal using at least one of the multiple samples and a value of a previously received sample.
Public/Granted literature
- US20210135907A1 ADPATIVE RECEIVER WITH PRE-CURSOR CANCELATION Public/Granted day:2021-05-06
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