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:
Sep. 14, 2010
Filed:
Feb. 09, 2005
Gary F. Feierbach, Belmont, CA (US);
John Bates, Sunnyvale, CA (US);
Gary F. Feierbach, Belmont, CA (US);
John Bates, Sunnyvale, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Mechanisms for displaying text or image over a background such as a video display frame that automatically improve legibility of text or image displayed against a background by increasing the contrast between text or image and background. The display frame may be a single image, but may also be an image within a dynamic sequence of recorded images such as a movie or other video media, or sequence of images captured in real-time by a camera or other device. In one embodiment, color component values are selected, and complementing and filtering applied to achieve contrast. In another embodiment, selecting a minimally used value for color components in the frame achieves contrast. In some cases both text or image, and background, may be altered to achieve contrast. Another embodiment provides background intensity modulation to achieve varying contrast within altered backgrounds, and smoothing over many frames in dynamic material.