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:
Nov. 19, 2013
Filed:
Oct. 17, 2008
Mitsuru Takahashi, Tokyo, JP;
Mitsuru Takahashi, Tokyo, JP;
NEC Display Solutions, Ltd., Tokyo, JP;
Abstract
The present invention provides a projection display device configured to solve a caption dropout problem. CPUdetermines a correction amount required to correct an image signal for distortion. Scalercorrects the image signal for distortion based on the correction amount. Caption signal processing circuitadjusts the display content of a caption signal based on the correction amount in such a manner that the entire caption indicated by the caption signal is displayed. Display image generation circuitsynthesizes the caption signal with the display content thereof adjusted by caption signal processing circuit, with the image signal corrected by scaler. Projection sectionprojects the synthesized image signal.