Patent Number: 6,252,826

Title: Time control device

Abstract: Oscillating precision of the first and the second oscillating sections each having the same oscillation frequency is determined in the oscillating precision determining section according to the timing of a signal supplied from the external time source, and in the internal time stepping control section, stepping control is provided over the internal time using a reference clock oscillated by any of the first and the second oscillating sections according to a result of determination of the oscillation precision.

Inventors: Kaizu; Tetsuya (Kanagawa, JP), Kai; Michio (Kanagawa, JP)

Assignee: Fujitsu Limited

International Classification: G06F 1/14 (20060101); G04F 010/00 ()

Expiration Date: 06/26/2018