Title:
OSCILLATOR
Document Type and Number:
Japanese Patent JPH09307355
Kind Code:
A
Abstract:
To provide an oscillator oscillating precisely in spite of being cheap and easy to set a temperature characteristic.
A thermistor 1 measures environmental temperature and a temperature correcting means 2 corrects measuring error depending on the temperature of the thermistor 1. Next, a frequency correcting means 3 mathematically predicts the temperature characteristic curve of VCXO 4 by corrected temperature data and a previously set parameter and outputs a signal to correct it through AFC 31, and VCXO 4 fine-adjusts an oscillation frequency according to the signal in this oscillator.
Inventors:
MATSUDA OSAMU
MURATA KAZUO
URAYAMA ATSUSHI
TANIKAME MINORU
TAKAKUWA YOSHINOBU
MURATA KAZUO
URAYAMA ATSUSHI
TANIKAME MINORU
TAKAKUWA YOSHINOBU
Application Number:
JP11610796A
Publication Date:
November 28, 1997
Filing Date:
May 10, 1996
Export Citation:
Assignee:
KOKUSAI ELECTRIC CO LTD
GOYO DENSHI KOGYO KK
GOYO DENSHI KOGYO KK
International Classes:
H03L1/02; H03B5/04; H03B5/32; (IPC1-7): H03B5/32; H03B5/04; H03L1/02
Attorney, Agent or Firm:
船津 暢宏 （外１名）
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