Patent ID: 7647032
Filing Date: 2010-01-12
Classification: H03L

Abstract:
1. An oscillation control device for controlling a frequency of an oscillator located at the remote site from a predetermined standard laboratory having a high-accuracy standard oscillator, comprising: a signal processing section to produce a frequency signal synchronized with a radio signal of which communication specification is made open to the public and which is transmitted from a predetermined site and is receivable at a plurality of sites, a comparison section to compare a frequency of the frequency signal produced by the signal processing section with a frequency of a oscillation signal outputted from an oscillator to be controlled, an acquisition section to obtain, through a communication network, a comparison result which is obtained by a comparison of a frequency of the standard oscillator held by the standard laboratory and a frequency of the radio signal, a calculation section to calculate, based on the comparison result obtained by the acquisition section and the comparison result by the comparison section, deviation between the frequency of the oscillator to be controlled and the frequency of the standard oscillator, and a control section to control the frequency of the oscillator to be controlled, based on the deviation calculated by the calculation section.