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. 04, 2012
Filed:
Jun. 04, 2010
Han-chiang Chen, Tainan, TW;
Shua-yuan Lai, Yuanli Township, Mialio County, TW;
Han-Chiang Chen, Tainan, TW;
Shua-Yuan Lai, Yuanli Township, Mialio County, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
Provided are a network slave node and a time synchronization method using precision time protocol-like (PTP-like) in a network. The network slave node includes a packet detection unit for detecting whether the slave node receives or sends a synchronization protocol packet and recording a synchronization protocol packet receiving time and a synchronization protocol packet sending time; a hardware clock; and a control unit controlling the packet detection unit and the hardware clock. The control unit reads out the packet receiving time and the packet sending time from the packet detection unit and informs a local master node. The local master node calculates a time offset between the local master node and the slave node, and informs the control unit. The control unit adjusts the hardware clock based on the time offset so that the local master node and the slave node are time synchronized.