U.S. patents available from 1976 to present.
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Selective forwarding of a strobe based on a predetermined delay following a memory read command

Patent 6456544 Issued on September 24, 2002. Estimated Expiration Date: Icon_subject March 30, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Semiconductor memory device
Patent #: 5488581
Issued on: 01/30/1996
Inventor: Nagao, et al.

Control signal generation circuit and semiconductor memory device that can correspond to high speed external clock signal
Patent #: 5812492
Issued on: 09/22/1998
Inventor: Yamauchi, et al.

Method and apparatus for latching data from a memory resource at a datapath unit Patent #: 6112284
Issued on: 08/29/2000
Inventor: Hayek, et al.

Inventor

Application

No. 823533 filed on 03/30/2001

US Classes:

365/193, Strobe365/194, Delay365/233.5Transition detection

Examiners

Primary: Lam, David

Attorney, Agent or Firm

International Class

G11C 007/00

Abstract

A method for reading data from a memory device, according to an embodiment of the invention, is disclosed. A strobe signal from the memory device is not forwarded by a controller until after a predetermined time interval following the sending of a read command by the controller to the memory device. A first bit value is captured, according to the forwarded strobe signal, in a data signal also from the memory device. The predetermined time interval is at least as long as a roundtrip flight time interval of a reference pulse that is transmitted from the controller to the memory device and back to the controller.

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