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:
Aug. 06, 2019

Filed:

Sep. 15, 2017
Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

Charles Dominguez, Redwood City, CA (US);

Mete Fikirlier, Mountain View, CA (US);

Assignee:

APPLE INC., Cupertino, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/12 (2006.01); H04W 56/00 (2009.01); G06F 1/14 (2006.01);
U.S. Cl.
CPC ...
G06F 1/12 (2013.01); G06F 1/14 (2013.01); H04W 56/001 (2013.01); H04W 56/0045 (2013.01);
Abstract

A device implementing an inter-chip time synchronization system may include a first circuit having a first clock and a second circuit having a second clock. The first circuit may be configured to capture a first timestamp from the first clock responsive to receiving a sampling signal from the second circuit. The first circuit may be configured to receive a second timestamp that was captured by the second circuit from a second clock of the second circuit. The second timestamp may have been captured by the second circuit when the sampling signal was transmitted to the first circuit. The first circuit may be configured to generate a conversion parameter for converting from the second clock of the second circuit to the first clock of the first circuit based at least in part on the first and second timestamps, and to store the generated conversion parameter.


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