Title:
OSCILLATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/077705
Kind Code:
A1
Abstract:
Provided is a temperature-compensated oscillation device that has an oscillation circuit for oscillating an oscillator. In the provided oscillation device, when the oscillation frequency is changed by a second control signal after being adjusted by a first control signal, the amount of change in the oscillation frequency due to the second control signal is set to a fixed amount. The oscillation frequency of the oscillation device is adjusted on the basis of both the first control signal and the second control signal, but an oscillation amplitude control unit is also added, said oscillation amplitude control unit allowing the oscillation amplitude of the oscillator to be changed by the second control signal. The provided oscillation device thus allows a fixed amount of oscillation frequency adjustment over a wide range (the full range) of oscillation frequency adjustment due to the first control signal.
Inventors:
NEMOTO KENJI (JP)
FURUYA TAMAMI (JP)
FURUYA TAMAMI (JP)
Application Number:
PCT/JP2010/007401
Publication Date:
June 30, 2011
Filing Date:
December 21, 2010
Export Citation:
Assignee:
ASAHI KASEI MICRODEVICES CORP (JP)
NEMOTO KENJI (JP)
FURUYA TAMAMI (JP)
NEMOTO KENJI (JP)
FURUYA TAMAMI (JP)
International Classes:
H03B5/32
Domestic Patent References:
| WO2005006539A1 | 2005-01-20 |
Foreign References:
| JPH03283905A | 1991-12-13 | |||
| JP2005529534A | 2005-09-29 | |||
| JPH03283704A | 1991-12-13 | |||
| JP2006135739A | 2006-05-25 | |||
| JP2003069343A | 2003-03-07 | |||
| JPS63314011A | 1988-12-22 | |||
| JPH0470139B2 | 1992-11-10 |
Other References:
See also references of EP 2439842A4
Attorney, Agent or Firm:
MORI, Tetsuya et al. (JP)
Woods Tetsuya (JP)
Woods Tetsuya (JP)
Download PDF: