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Title:
DETECTOR, GYRO-SENSOR, ELECTRONIC APPARATUS, AND DETECTOR ADJUSTMENT METHOD
Document Type and Number:
Japanese Patent JP2008101973
Kind Code:
A
Abstract:

To provide a detector or the like for materializing offset adjustment while preventing the scale of a circuit from enlarging.

This detector comprises a drive circuit and a detection circuit while the detection circuit comprises an amplification circuit amplifying an output signal from a vibrator. The amplification circuit comprises a differential amplification circuit 76 performing differential amplification on a differential signal corresponding to the output signal, and an offset adjustment circuit 78 performing offset adjustment by variably controlling the resistance value of at least one resistance the amplification circuit 76 has. The offset adjustment is performed by amplifying at least one of first and second unnecessary signals superposed, respectively, on first and second signals constituting the differential signal.


Inventors:
MISAWA TOSHIYUKI
Application Number:
JP2006283746A
Publication Date:
May 01, 2008
Filing Date:
October 18, 2006
Export Citation:
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Assignee:
SEIKO EPSON CORP
International Classes:
G01C19/56; G01C19/00; G01C19/5614; G01C19/5776; H01L41/08; H01L41/18; H01L41/22
Domestic Patent References:
JPH0933260A1997-02-07
JP2003021516A2003-01-24
JP2005241359A2005-09-08
JP2006170620A2006-06-29
JP2000131070A2000-05-12
JPH08189834A1996-07-23
JP2005127978A2005-05-19
JP2006090706A2006-04-06
JP2000258162A2000-09-22
JP2000088578A2000-03-31
JP2008101974A2008-05-01
JP2007327944A2007-12-20
JP2007327945A2007-12-20
JP2008070229A2008-03-27
JPH08261764A1996-10-11
JP2004317484A2004-11-11
JP2002228453A2002-08-14
JP2005227234A2005-08-25
JP2003065768A2003-03-05
JPH0861958A1996-03-08
JPH0933260A1997-02-07
JP2003021516A2003-01-24
JP2005241359A2005-09-08
JP2006170620A2006-06-29
JP2000131070A2000-05-12
JPH08189834A1996-07-23
JP2005127978A2005-05-19
JP2006090706A2006-04-06
JP2000258162A2000-09-22
JP2000088578A2000-03-31
JP2008101974A2008-05-01
JP2007327944A2007-12-20
JP2007327945A2007-12-20
JP2008070229A2008-03-27
Attorney, Agent or Firm:
Inoue Ichi
Takekoshi Noboru
Enami Tomokazu
Yasushi Kuroda



 
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