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:
Nov. 18, 2014
Filed:
Jun. 20, 2014
Fujitsu Limited, Kawasaki, JP;
Yuji Takahashi, Minato, JP;
Kouki Shigaki, Fukuoka, JP;
Katsumi Sugawa, Miyaji, JP;
Tadashige Iwao, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A node device includes a processor, a wireless RF circuit, a memory, and a timer. The processor measures a clock time. The wireless RF circuit receives a clock time information frame containing clock time information used for correcting the clock time. The memory stores a transmission processing time period, as a fixed value, from when a transmission source node device of the clock time information frame obtains the clock time information until when the transmission source node device transmits the clock time information frame. The timer measures a reception processing time period, which is a period of time from when the clock time information frame is received until when the clock time information is obtained. The node device sets to the processor a value obtained by adding the fixed value and the reception processing time period to the clock time information.