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. 21, 2004
Filed:
Mar. 11, 1998
Donald B. Doherty, Richardson, TX (US);
Gregory S. Pettitt, Rowlett, TX (US);
Vishal Markandey, Dallas, TX (US);
Daniel J. Morgan, Denton, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
Methods of reducing contouring in images display by a linear display device, such as a spatial light modulator. The methods operate on a high resolution signal, which represents a stream of pixel values. The per pixel resolution of this signal is greater than the per pixel display resolution, and its less significant bits are treated as an error component. Random values are added to the error component either in conjunction with error diffusion values (FIG. ) or to provide a dither that is directly proportional to the error (FIG. ), or to provide a dither that has both spatial and temporal contributions (FIG. ).