The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 03, 2012
Filed:
Nov. 13, 2008
Yohsuke Suzuki, Yokohama, JP;
Takuroh Yasuda, Tokyo, JP;
Kaoru Ito, Yokohama, JP;
Katsuhiko Nuno, Yokosuka, JP;
Yohsuke Suzuki, Yokohama, JP;
Takuroh Yasuda, Tokyo, JP;
Kaoru Ito, Yokohama, JP;
Katsuhiko Nuno, Yokosuka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A lens drive device in at least one lens barrel holding a lens moveably includes a motor to drive the lens; an acceleration detection section to detect an acceleration; and an output control section to control an output of the motor corresponding to the acceleration detected by the acceleration detection section. The output control section determines whether the acceleration detected by the acceleration detection section falls within a predetermined acceleration range or not. When the acceleration is determined to be within the range, a further determination of whether the lens drive device is in a stationary state is performed. When it is determined not being in the stationary state, the motor is driven by a maximum drive voltage. When it is determined being in the stationary state, a further determination of whether the posture is horizontal or not is performed.