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.
Patent No.:
Date of Patent:
Sep. 25, 2018
Filed:
Mar. 04, 2016
Marvell International Ltd., Hamilton, BM;
Ramya Krishna Devineni, Fremont, CA (US);
Donald Pannell, Cupertino, CA (US);
Hong Yu Chou, Saratoga, CA (US);
Samuel Kong, Cupertino, CA (US);
Marvell International Ltd., Hamilton, BM;
Abstract
A network device including a port having register and timing modules. The register module includes first ToD, loadpoint, and compensation registers. The timing module includes a second ToD register and ToD module and operates based on a local clock signal. The register module receives a ToD from a control module, which is separate from the network device and selects an initial hardware time. The ToD is a future time and is based on a grandmaster clock signal. The first ToD and loadpoint registers store the ToD and initial hardware time. The compensation register stores a compensation value from the control module and determined based on a difference between local and grandmaster clock signals. The ToD module, when local and initial hardware times match: transfers the ToD between first and second ToD registers; and updates the ToD in the second ToD register based on the local clock signal and compensation value.