Title: Oscillation control device and synchronization system
Application Number: 200610141079 Application Date: 2006.09.29
Publication Number: 1945975 Publication Date: 2007.04.11
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H03L7/06;G01S1/02;G01S5/02;G01D18/00
Applicant(s) Name: Yokogawa Electric Corp. Address:
Inventor(s) Name: Imae Michito;Suzuyama Tomonari;Fujii Yasuhisa;Kasu
Attorney & Agent: chenyuan zhangtian shu
Abstract:
    An oscillation control device for controlling a frequency of an oscillator located at the remote site from a standard laboratory having a standard oscillator. The control device includes: a comparison section to compare a frequency of the frequency signal synchronized with a radio signal produced by a 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 deviation between the frequency of the oscillator to be controlled and the frequency of the standard oscillator based on their comparison, and a control section to control the frequency of the oscillator to be controlled, based on the deviation calculated.
Time: 4
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