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:
Aug. 15, 2006
Filed:
Oct. 04, 2004
Takashi Akutsu, Akiruno, JP;
Takashi Akutsu, Akiruno, JP;
Casio Computer Co., Ltd, Tokyo, JP;
Abstract
After power is turned on, a control section causes a distance detecting section to detect a distance up to a screen, and controls focus positions of a projector lens and an imaging lens in synchronization with each other based on the detected distance (projection distance and subject distance) and an initialized zoom ratio. Moreover, when a change operation in angle of view is executed by a user in a user control apparatus, the control section changes a zoom ratio of the projector lens according to the user's operation and changes a zoom ratio of the imaging lens to correspond to the zoom ratio of the projector lens. The control section controls the zoom ratio and the focus position of the imaging lens in synchronization with setting of the zoom ratio and the focus position of the projector lens.