Title:
時刻同期システム
Document Type and Number:
Japanese Patent JP6820586
Kind Code:
B2
Abstract:
A time synchronization system includes master nodes (1A, 1B and 1N) and slave nodes (2A, 2B and 2N) configured to correct a local slave clock by synchronizing time with time in a local master clock. A first master node corrects a first local master clock at predetermined periodic intervals by synchronizing with a timing synchronization signal from a source clock node having a source clock. If a second local master clock has a greater error from the source clock than the error in the first local master clock, the second master node performs first correction by synchronizing time with time in the first local master clock and performs second correction by synchronizing with the timing synchronization signal from the source clock node on condition that an error in the second local master clock is within a predetermined range after the first correction has been performed.
Inventors:
Takeshi Shimizu
Kazuo Narita
Kazuo Narita
Application Number:
JP2016169944A
Publication Date:
January 27, 2021
Filing Date:
August 31, 2016
Export Citation:
Assignee:
Media Links Inc.
International Classes:
H04L7/00; G04G5/00; G04G7/00
Domestic Patent References:
| JP7264685A | ||||
| JP2016139846A |
Foreign References:
| US20140281037 | ||||
| US20140198777 |
Attorney, Agent or Firm:
Patent Business Corporation Tani/Abe Patent Office