Invention Grant
- Patent Title: Partial response decision-feedback equalization with adaptation based on edge samples
- Patent Title (中): 基于边缘样本的部分响应决策反馈均衡与适应
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Application No.: US12513898Application Date: 2007-11-09
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Publication No.: US08477834B2Publication Date: 2013-07-02
- Inventor: Brian S. Leibowitz , Hae-Chang Lee , Jihong Ren , Ruwan Ratnayake
- Applicant: Brian S. Leibowitz , Hae-Chang Lee , Jihong Ren , Ruwan Ratnayake
- Applicant Address: US CA Sunnyvale
- Assignee: Rambus, Inc.
- Current Assignee: Rambus, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Mahamedi Paradice Kreisman LLP
- Agent Lance M. Kreisman
- International Application: PCT/US2007/023600 WO 20071109
- International Announcement: WO2008/063431 WO 20080529
- Main IPC: H03H7/30
- IPC: H03H7/30 ; H04L27/06 ; H04B1/10

Abstract:
A device (102) implements data reception with edge-based partial response decision feedback equalization. In an example embodiment, the device implements a tap weight adapter circuit (114) that sets the tap weights that are used for adjustment of a received data signal (104). The tap weight adapter circuit (119) sets the tap weights based on previously determined data values and input from an edge analysis of the received data signal using a set of edge samplers. The edge analysis (116) may include adjusting the sampled data signal by the tap weights determined by the tap weight adapter circuit. A clock generation circuit (220) generates an edge clock signal to control the edge sampling performed by the set of edge samplers. The edge clock signal may be generated as a function of the signals of the edge samplers and prior data values determined by the equalizer.
Public/Granted literature
- US20100103999A1 PARTIAL RESPONSE DECISION-FEEDBACK EQUALIZATION WITH ADAPTATION BASED ON EDGE SAMPLES Public/Granted day:2010-04-29
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