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. 05, 2002
Filed:
Jul. 16, 1999
Yoshito Suzuki, Tokyo, JP;
Kouji Minami, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A luminance resolution enhancement circuit receives an (m+n) -bit image signal having an m-bit displayable component and an n-bit non-displayable component. An address generating element generates relative spatial and temporal coordinates of the pixel values in the image signal. For each pixel value, an average element calculates the average non-displayable component of the image signal in an averaging region including the pixel value, and a dithering element generates a dither signal responsive to the relative spatial and temporal coordinates of the pixel and the calculated average value. A processor additively combines the dither signal with the displayable component of the image signal, thereby generating an m-bit output image signal having a simulated luminance resolution exceeding m bits.