Title:
【発明の名称】発振装置
Document Type and Number:
Japanese Patent JP2666709
Kind Code:
B2
Abstract:
An oscillating apparatus includes a quartz crystal oscillator for outputting a reference frequency signal, a phase-locked loop for oscillating a desired frequency signal on the basis of an output from the quartz crystal oscillator, a unit for detecting vibration components added to the quartz crystal oscillator, a unit for variably controlling phases and levels of the detected vibration components, a unit for obtaining a correlation value between the detected vibration components and vibration components in the phase-locked loop to variably control the phases and the levels, and a unit for controlling the phase-locked loop on the basis of the phases and levels of the vibration components which are variably controlled.
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Inventors:
Shinji Tanabe
Application Number:
JP32703293A
Publication Date:
October 22, 1997
Filing Date:
December 24, 1993
Export Citation:
Assignee:
NEC
International Classes:
G01P15/09; G01P15/18; H03L1/00; H03L7/06; H03L7/08; H03L7/18; (IPC1-7): H03L7/18; H03L7/06
Domestic Patent References:
| JP817325B2 |
Attorney, Agent or Firm:
Hiroo Suzuki