Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
COMPOSITE RESONATOR
Document Type and Number:
WIPO Patent Application WO/2007/145127
Kind Code:
A1
Abstract:
[PROBLEMS] To obtain a variable frequency source with high signal purity. [MEANS FOR SOLVING PROBLEMS] A series resonant circuit comprises a pair of resonant elements mutually connected in series at a midpoint and having mutually identical resonance frequency. Phase shift circuits for providing phase shifts in the mutually opposite directions are connected to both ends of the series resonant circuit. AC power is supplied between the midpoint and the input sides of the phase shift circuits to obtain the resonant output of the series resonant circuit, which is used as an external output.

Inventors:
HIRAMA KOICHI (JP)
Application Number:
PCT/JP2007/061514
Publication Date:
December 21, 2007
Filing Date:
June 07, 2007
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HIRAMA KOICHI (JP)
International Classes:
H03H5/00; H03H1/00; H03H7/00
Domestic Patent References:
WO2006046672A12006-05-04
Foreign References:
JPH04370742A1992-12-24
JP2006029870A2006-02-02
JP2006003144A2006-01-05
US5821833A1998-10-13
JP2002111305A2002-04-12
JP2005072757A2005-03-17
JPH11295281A1999-10-29
JPH10114130A1998-05-06
JPH10174436A1998-06-26
JP2004519150A2004-06-24
JP2005253059A2005-09-15
JP2005223111A2005-08-18
JP2000196358A2000-07-14
JPH10313216A1998-11-24
JP2006109425A2006-04-20
JP2007085977A2007-04-05
Attorney, Agent or Firm:
FUJIMURA, Motohiko (Togeki-Bldg.1-1, Tsukiji 4-chom, Chuo-ku Tokyo 45, JP)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: DRIVE DEVICE FOR ELECTRIC VEHICLE

Next Patent: SOCKET, METHOD OF MANUFACTURING THE SAME, AND SEMICONDUCTOR DEVICE