公开(公告)号：US09710011B2

公开(公告)日：2017-07-18

申请号：US14751312

申请日：2015-06-26

Applicant: RAMBUS INC.

Inventor： Scott C. Best ,  Abhijit M. Abhyankar ,  Kun-Yung Chang ,  Frank Lambrecht

IPC: G06F1/08 ,  G11C29/02 ,  H04L7/00 ,  G11C29/50 ,  H04L7/033 ,  H04L7/10 ,  H04L25/14 ,  G06F1/12

CPC classification number: G06F1/08 ,  G06F1/12 ,  G11C29/02 ,  G11C29/022 ,  G11C29/028 ,  G11C29/50012 ,  H04L7/0004 ,  H04L7/0008 ,  H04L7/0033 ,  H04L7/0091 ,  H04L7/033 ,  H04L7/10 ,  H04L25/14

Abstract: A memory controller having a data receiver to sample data at a sample timing using a strobe signal, wherein the data and the strobe signal are sent by a memory device in connection with a read operation initiated by the memory controller, and a strobe receiver to receive the strobe signal, wherein a phase of the strobe signal has a drift relative to a reference by an amount. The memory controller further having a monitoring circuit to monitor the strobe signal and determine the amount of the drift, and an adjustment circuit to update the sample timing of the data receiver based on the amount of drift determined by the monitoring signal.

公开(公告)号：US20150293557A1

公开(公告)日：2015-10-15

申请号：US14751312

申请日：2015-06-26

Applicant: RAMBUS INC.

Inventor： Scott C. Best ,  Abhijit M. Abhyankar ,  Kun-Yung Chang ,  Frank Lambrecht

IPC: G06F1/08 ,  G06F1/12

CPC classification number: G06F1/08 ,  G06F1/12 ,  G11C29/02 ,  G11C29/022 ,  G11C29/028 ,  G11C29/50012 ,  H04L7/0004 ,  H04L7/0008 ,  H04L7/0033 ,  H04L7/0091 ,  H04L7/033 ,  H04L7/10 ,  H04L25/14

Abstract: A memory controller having a data receiver to sample data at a sample timing using a strobe signal, wherein the data and the strobe signal are sent by a memory device in connection with a read operation initiated by the memory controller, and a strobe receiver to receive the strobe signal, wherein a phase of the strobe signal has a drift relative to a reference by an amount. The memory controller further having a monitoring circuit to monitor the strobe signal and determine the amount of the drift, and an adjustment circuit to update the sample timing of the data receiver based on the amount of drift determined by the monitoring signal.

Abstract translation: 一种存储器控制器，具有数据接收器，用于使用选通信号在采样定时采样数据，其中所述数据和所述选通信号由存储器件发送，与由所述存储器控制器发起的读取操作相结合;以及选通接收器，用于接收 所述选通信号，其中所述选通信号的相位相对于参考具有相对于所述量的漂移。 存储器控制器还具有监控电路以监视选通信号并确定漂移量;以及调整电路，用于基于由监视信号确定的漂移量来更新数据接收器的采样定时。

公开(公告)号：US08666007B2

公开(公告)日：2014-03-04

申请号：US13687391

申请日：2012-11-28

Applicant: Rambus Inc.

Inventor： Scott C. Best ,  Richard E. Warmke ,  David B. Roberts ,  Frank Lambrecht

IPC: H04L7/00

CPC classification number: G11C11/4076 ,  G06F1/10 ,  G11C7/04 ,  G11C7/10 ,  G11C7/1087 ,  G11C7/222 ,  G11C11/4091 ,  G11C2207/107 ,  H03L7/07 ,  H03L7/0814 ,  H04L7/0337

Abstract: A memory controller receives data and phase-providing signals from a memory device. The phase-providing signal is not a clock signal, but is used by the memory controller to phase align a local data-sampling signal with the incoming data. The memory controller samples the data signal with the data-sampling signal. The memory controller can perform maintenance operations to update the phase relationship between the phase-providing and data-sampling signals.

Abstract translation: 存储器控制器从存储器件接收数据和相位提供信号。 相位提供信号不是时钟信号，而是被存储器控制器用来将本地数据采样信号与输入数据进行相位调整。 存储器控制器用数据采样信号对数据信号进行采样。 存储器控制器可以执行维护操作以更新相位提供和数据采样信号之间的相位关系。

公开(公告)号：US20220300030A1

公开(公告)日：2022-09-22

申请号：US17715869

申请日：2022-04-07

Applicant: Rambus Inc.

Inventor： Scott C. Best ,  Abhijit M. Abhyankar ,  Kun-Yung Chang ,  Frank Lambrecht

IPC: G06F1/08 ,  G11C29/02 ,  G11C29/50 ,  H04L7/00 ,  H04L7/033 ,  H04L7/10 ,  H04L25/14 ,  G06F1/12

Abstract: A memory controller having a data receiver to sample data at a sample timing using a strobe signal, wherein the data and the strobe signal are sent by a memory device in connection with a read operation initiated by the memory controller, and a strobe receiver to receive the strobe signal, wherein a phase of the strobe signal has a drift relative to a reference by an amount. The memory controller further having a monitoring circuit to monitor the strobe signal and determine the amount of the drift, and an adjustment circuit to update the sample timing of the data receiver based on the amount of drift determined by the monitoring signal.

公开(公告)号：US11327524B2

公开(公告)日：2022-05-10

申请号：US16707957

申请日：2019-12-09

Applicant: Rambus Inc.

Inventor： Scott C. Best ,  Abhijit M. Abhyankar ,  Kun-Yung Chang ,  Frank Lambrecht

IPC: G06F1/08 ,  G11C29/02 ,  G11C29/50 ,  H04L7/00 ,  H04L7/033 ,  H04L7/10 ,  H04L25/14 ,  G06F1/12

Abstract: A memory controller having a data receiver to sample data at a sample timing using a strobe signal, wherein the data and the strobe signal are sent by a memory device in connection with a read operation initiated by the memory controller, and a strobe receiver to receive the strobe signal, wherein a phase of the strobe signal has a drift relative to a reference by an amount. The memory controller further having a monitoring circuit to monitor the strobe signal and determine the amount of the drift, and an adjustment circuit to update the sample timing of the data receiver based on the amount of drift determined by the monitoring signal.

公开(公告)号：US09741423B2

公开(公告)日：2017-08-22

申请号：US15259854

申请日：2016-09-08

Applicant: Rambus Inc.

Inventor： Scott C. Best ,  Richard E. Warmke ,  David B. Roberts ,  Frank Lambrecht

IPC: G11C11/4076 ,  G11C11/4091

CPC classification number: G11C11/4076 ,  G06F1/10 ,  G11C7/04 ,  G11C7/10 ,  G11C7/1087 ,  G11C7/222 ,  G11C11/4091 ,  G11C2207/107 ,  H03L7/07 ,  H03L7/0814 ,  H04L7/0337

Abstract: A memory controller receives data and phase-providing signals from a memory device. The phase-providing signal is not a clock signal, but is used by the memory controller to phase align a local data-sampling signal with the incoming data. The memory controller samples the data signal with the data-sampling signal. The memory controller can perform maintenance operations to update the phase relationship between the phase-providing and data-sampling signals.

公开(公告)号：US09466353B2

公开(公告)日：2016-10-11

申请号：US14849425

申请日：2015-09-09

Applicant: Rambus Inc.

Inventor： Scott C. Best ,  Richard E. Warmke ,  David B. Roberts ,  Frank Lambrecht

IPC: H04L7/00 ,  G11C11/4076 ,  G06F1/10 ,  G11C7/10 ,  G11C7/22 ,  H03L7/07 ,  H03L7/081 ,  H04L7/033 ,  G11C7/04

CPC classification number: G11C11/4076 ,  G06F1/10 ,  G11C7/04 ,  G11C7/10 ,  G11C7/1087 ,  G11C7/222 ,  G11C11/4091 ,  G11C2207/107 ,  H03L7/07 ,  H03L7/0814 ,  H04L7/0337

Abstract: A memory controller receives data and phase-providing signals from a memory device. The phase-providing signal is not a clock signal, but is used by the memory controller to phase align a local data-sampling signal with the incoming data. The memory controller samples the data signal with the data-sampling signal. The memory controller can perform maintenance operations to update the phase relationship between the phase-providing and data-sampling signals.

公开(公告)号：US20160125929A1

公开(公告)日：2016-05-05

申请号：US14849425

申请日：2015-09-09

Applicant: Rambus Inc.

Inventor： Scott C. Best ,  Richard E. Warmke ,  David B. Roberts ,  Frank Lambrecht

IPC: G11C11/4076

CPC classification number: G11C11/4076 ,  G06F1/10 ,  G11C7/04 ,  G11C7/10 ,  G11C7/1087 ,  G11C7/222 ,  G11C11/4091 ,  G11C2207/107 ,  H03L7/07 ,  H03L7/0814 ,  H04L7/0337

Abstract: A memory controller receives data and phase-providing signals from a memory device. The phase-providing signal is not a clock signal, but is used by the memory controller to phase align a local data-sampling signal with the incoming data. The memory controller samples the data signal with the data-sampling signal. The memory controller can perform maintenance operations to update the phase relationship between the phase-providing and data-sampling signals.

公开(公告)号：US10192610B2

公开(公告)日：2019-01-29

申请号：US15667706

申请日：2017-08-03

Applicant: Rambus Inc.

Inventor： Scott C. Best ,  Richard E. Warmke ,  David B. Roberts ,  Frank Lambrecht

IPC: G11C11/4076 ,  G06F1/10 ,  G11C7/10 ,  G11C7/22 ,  H03L7/07 ,  H03L7/081 ,  H04L7/033 ,  G11C11/4091 ,  G11C7/04

Abstract: A memory controller receives data and phase-providing signals from a memory device. The phase-providing signal is not a clock signal, but is used by the memory controller to phase align a local data-sampling signal with the incoming data. The memory controller samples the data signal with the data-sampling signal. The memory controller can perform maintenance operations to update the phase relationship between the phase-providing and data-sampling signals.

公开(公告)号：US20170154665A1

公开(公告)日：2017-06-01

申请号：US15259854

申请日：2016-09-08

Applicant: Rambus Inc.

Inventor： Scott C. Best ,  Richard E. Warmke ,  David B. Roberts ,  Frank Lambrecht

IPC: G11C11/4076 ,  G11C11/4091

CPC classification number: G11C11/4076 ,  G06F1/10 ,  G11C7/04 ,  G11C7/10 ,  G11C7/1087 ,  G11C7/222 ,  G11C11/4091 ,  G11C2207/107 ,  H03L7/07 ,  H03L7/0814 ,  H04L7/0337

Abstract: A memory controller receives data and phase-providing signals from a memory device. The phase-providing signal is not a clock signal, but is used by the memory controller to phase align a local data-sampling signal with the incoming data. The memory controller samples the data signal with the data-sampling signal. The memory controller can perform maintenance operations to update the phase relationship between the phase-providing and data-sampling signals.