Title:
IMAGE CAPTURE DEVICE AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2015/064279
Kind Code:
A1
Abstract:
The purpose of the present invention is to accurately and flexibly control the driving of a moving member, while preventing generation of high frequency noise objectionable to users, in an image capture device and control method therefor which drives the moving member so as to obtain an optical low-pass filter effect. A low frequency drive signal generation unit (63) generates a low frequency drive signal having a drive frequency lower than a predetermined critical frequency. A high frequency drive signal generation unit (64) generates a high frequency drive signal having a drive frequency higher than the predetermined critical frequency. A first overlap synthesis unit (65) causes the low frequency drive signal generated by the low frequency drive signal generation unit (63) to overlap an input control target signal, thereby synthesizing and generating an overlapped control target signal. A second overlap synthesis unit (67) causes the high frequency drive signal generated by the high frequency drive signal generation unit (64) to overlap the overlapped control target signal generated by the first overlap synthesis unit (65), thereby synthesizing and generating an overlapped drive signal serving as a drive signal.
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Inventors:
MATSUTANI ATSUSHI (JP)
Application Number:
PCT/JP2014/076079
Publication Date:
May 07, 2015
Filing Date:
September 30, 2014
Export Citation:
Assignee:
RICOH IMAGING CO LTD (JP)
International Classes:
H04N5/232; G03B5/00; G03B5/08; H04N5/225; H04N5/357; H04N9/07
Foreign References:
| JP2006101452A | 2006-04-13 | |||
| JPH09116910A | 1997-05-02 | |||
| JP2008176068A | 2008-07-31 |
Attorney, Agent or Firm:
MIURA, Kunio et al. (JP)
Kunio Miura (JP)
Kunio Miura (JP)
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