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:
Jan. 22, 2019

Filed:

Nov. 14, 2017
Applicant:

Marvell International Ltd., Hamilton, BM;

Inventors:

Luns Tee, Berkeley, CA (US);

Wanghua Wu, Santa Clara, CA (US);

Xiang Gao, Fremont, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 7/16 (2006.01); H03M 13/03 (2006.01); H03K 23/00 (2006.01);
U.S. Cl.
CPC ...
H03M 13/03 (2013.01); H03K 23/005 (2013.01); H03M 7/16 (2013.01); G06F 2205/102 (2013.01);
Abstract

Embodiments described herein provide a method for correcting a propagation delay induced error in an output of an asynchronous counter. An input clock is applied to the asynchronous counter. A gray-code count is generated by the asynchronous counter. The gray-code count is mapped to a binary count. An error component, indicative of a counting error induced by a propagation delay between the input clock and the binary count, is generated by taking an exclusive-OR operation over the gray-code count and the input clock. The error component is added to the binary count to generate an error-corrected binary count. The error-corrected binary count is output.


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