Invention Grant
- Patent Title: Apparatus and methods for differential signal receiving
- Patent Title (中): 差分信号接收的装置和方法
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Application No.: US12746018Application Date: 2008-10-29
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Publication No.: US08422590B2Publication Date: 2013-04-16
- Inventor: Brian S. Leibowitz , Jaeha Kim , Hae-Chang Lee
- Applicant: Brian S. Leibowitz , Jaeha Kim , Hae-Chang Lee
- 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/US2008/012322 WO 20081029
- International Announcement: WO2009/075713 WO 20090618
- Main IPC: H04L27/00
- IPC: H04L27/00

Abstract:
A differential signal receiver 106 implements intra-pair skew compensation for improving data transfer on a differential channel. In an embodiment, the receiver implements sampling by—multiple clocks with different phases such that the signals of the differential channel may be separately or individually time adjusted to account for skew between them so that they may be differentially compared for data resolution. In one embodiment, a positive sampler and negative sampler are controlled by distinct clock signals to permit, at different times, sampling and holding of the positive and negative signals representing a data bit on the differential channel. A differential decision circuit may then differentially resolve the data using a latter one of the distinct clock signals. Timing generation circuitry for producing the offset clocks may include a skew detector that permits dynamic adjustment of the different clock signals according to skew associated with the signals of the differential channel.
Public/Granted literature
- US20100272216A1 APPARATUS AND METHODS FOR DIFFERENTIAL SIGNAL RECEIVING Public/Granted day:2010-10-28
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