- Patent Title: Driving apparatus, light source driving apparatus, light source apparatus, projection apparatus, and driving method, suitable for driving load in which value of physical quantity as controlled object periodically changes
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Application No.: US14661980Application Date: 2015-03-18
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Publication No.: US09599885B2Publication Date: 2017-03-21
- Inventor: Tetsuro Narikawa
- Applicant: CASIO COMPUTER CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: CASIO COMPUTER CO., LTD.
- Current Assignee: CASIO COMPUTER CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Holtz, Holtz & Volek PC
- Priority: JP2014-056439 20140319
- Main IPC: G03B21/20
- IPC: G03B21/20 ; H04N5/74 ; H05B37/02 ; H04N9/31

Abstract:
A driving apparatus drives a load so as to periodically change a physical quantity as a controlled object. The apparatus includes a calculation unit configured to calculate a deviation between the targeted value and a detection value detected by the detection unit, a storage unit configured to store past deviations calculated by the calculation unit, a determination unit configured to determine a manipulative variable corresponding to the physical quantity, by referring to a past deviation before a predetermined period, which has been stored in the storage unit, and a driving unit configured to drive the load, based on the manipulative variable determined by the determination unit.
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