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. 25, 2022

Filed:

Feb. 06, 2019
Applicant:

Credo Technology Group Limited, Grand Cayman, KY;

Inventors:

Fang Cai, San Jose, CA (US);

Junqing Sun, San Jose, CA (US);

Haoli Qian, San Jose, CA (US);

Assignee:

CREDO TECHNOLOGY GROUP LIMITED, Grand Cayman, KY;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/06 (2006.01); H04L 7/027 (2006.01); G06F 11/16 (2006.01); G06F 13/42 (2006.01); G06F 1/08 (2006.01); G06F 15/173 (2006.01);
U.S. Cl.
CPC ...
G06F 1/06 (2013.01); G06F 11/1604 (2013.01); H04L 7/027 (2013.01); G06F 1/08 (2013.01); G06F 13/4291 (2013.01); G06F 15/17325 (2013.01);
Abstract

Disclosed clock recovery modules provide improved performance with only limited complexity and power requirements. In one illustrative embodiment, a clock recovery method includes: oversampling a receive signal to obtain mid-symbol interval (MSI) samples and between-symbol interval (BSI) samples; processing at least the MSI samples to obtain symbol decisions; filtering the symbol decisions to obtain BSI targets; determining a timing error based on a difference between the BSI samples and the BSI targets; and deriving from the timing error a clock signal for said oversampling.


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