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:
Mar. 26, 2019
Filed:
Feb. 26, 2018
Seiko Epson Corporation, Tokyo, JP;
Akihiko Tamura, Matsumoto, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A projector includes a projection unit that projects a projection image and a control unit that performs calibration. The control unit detects a position of a first detection point in a first symbol, from a first captured image obtained by capturing a first projection image when the projection unit projects the first projection image including the first symbol onto a projection surface, detects a position of a second detection point in a second symbol, based on the position of the first detection point, from a second captured image obtained by capturing a second projection image when the projection unit projects the second projection image including the second symbol onto the projection surface, and performs the calibration based on the position of the second detection point. The second symbol is disposed at a position corresponding to the first symbol and has a shape different from the first symbol.