The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 21, 2024

Filed:

Aug. 08, 2022
Applicant:

Rambus Inc., San Jose, CA (US);

Inventors:

Frederick A. Ware, Los Altos Hills, CA (US);

Ely Tsern, Los Altos, CA (US);

Brian Leibowitz, San Francisco, CA (US);

Jared Zerbe, Woodside, CA (US);

Assignee:

Rambus Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/13 (2014.01); G06F 13/00 (2006.01); G06F 13/16 (2006.01); G06F 13/42 (2006.01); G11C 7/04 (2006.01); G11C 7/10 (2006.01); G11C 7/22 (2006.01); G11C 29/02 (2006.01);
U.S. Cl.
CPC ...
H03K 5/13 (2013.01); G06F 13/1689 (2013.01); G11C 7/1066 (2013.01); G11C 7/1093 (2013.01); G11C 7/22 (2013.01); G11C 29/022 (2013.01); G11C 29/023 (2013.01); G11C 29/028 (2013.01); G06F 13/00 (2013.01); G06F 13/4243 (2013.01); G11C 7/04 (2013.01);
Abstract

An integrated circuit includes a delay circuit and first and second interface circuits. The delay circuit delays a first timing signal by an internal delay to generate an internal timing signal. The first interface circuit communicates data to an external device in response to the internal timing signal. The second interface circuit transmits an external timing signal for capturing the data in the external device. An external delay is added to the external timing signal in the external device to generate a delayed external timing signal. The delay circuit sets the internal delay based on a comparison between the delayed external timing signal and a calibration signal transmitted by the first interface circuit.


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