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:
Feb. 02, 2021
Filed:
Feb. 14, 2019
Nvidia Corporation, Santa Clara, CA (US);
Jens Roever, Los Gatos, CA (US);
Robert Jan Schutten, San Jose, CA (US);
NVIDIA Corporation, Santa Clara, CA (US);
Abstract
A display device includes a display controller that performs a high-throughput dithering operation. The display controller performs a quantization operation with pixel values generated by a graphics processor to generate quantized pixel values and residual error values. The display controller distributes the residual error values associated with a first group of quantized pixel values to a second group of quantized pixel values based on a set of distribution weights. A given distribution weight defines what fraction of a given residual error value is distributed to a given quantized pixel value included in the second group of quantized pixel values. The distribution weights are calibrated to permit the display controller to compute different fractions of residual error values using bit shifting logic instead of complex combinatorial logic.