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:
Apr. 12, 2022

Filed:

Apr. 16, 2019
Applicant:

Baidu Usa Llc, Sunnyvale, CA (US);

Inventors:

Manjiang Zhang, Sunnyvale, CA (US);

Shengjin Zhou, San Jose, CA (US);

Davy Huang, San Jose, CA (US);

Min Guo, San Diego, CA (US);

Bernard Deadman, Austin, TX (US);

Assignee:

BAIDU USA LLC, Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60W 50/00 (2006.01); H04L 7/00 (2006.01); G06F 13/42 (2006.01); G05D 1/00 (2006.01); H04L 67/12 (2022.01);
U.S. Cl.
CPC ...
B60W 50/00 (2013.01); G05D 1/0088 (2013.01); G06F 13/4282 (2013.01); H04L 7/0008 (2013.01); H04L 67/12 (2013.01); B60W 50/0097 (2013.01); B60W 2050/0075 (2013.01); B60W 2050/0088 (2013.01); B60W 2556/00 (2020.02); B60W 2556/50 (2020.02); G05D 2201/0213 (2013.01); G06F 2213/0026 (2013.01);
Abstract

A method, apparatus, and system for timing synchronization between multiple computing nodes in an autonomous vehicle host system is disclosed. Timing of a first computing node of an autonomous vehicle host system is calibrated based on an external time source. A first timing message is transmitted from the first computing node to a second computing node of the autonomous vehicle host system via a first communication channel between the first computing node and the second computing node. Timing of the second computing node is calibrated based on the first timing message, wherein immediately subsequent to the calibration of timing of the second computing node, timing of the first computing node and of the second computing node is synchronized.


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