Patent Document ID: 10049427
Application ID: 15677254
Patent Status: 1

Claim One:
1. An electronic device comprising a first image data processing pipeline, wherein the first image data processing pipeline comprises: first image data processing circuitry configured to output first uncompressed image data corresponding to a first pixel tile in an image to be displayed on an electronic display, wherein the first pixel tile comprises a first pixel group and a second pixel group; and a compression engine coupled to the first image data processing circuitry, wherein the compression engine comprises: a prediction block configured to determine a first plurality of prediction residuals based at least in part on difference between the first uncompressed image data and a first prediction of the first pixel group and, subsequently, determine a second plurality of prediction residuals based at least in part on difference between the first uncompressed image data and a second prediction of the second pixel group; a run encode block coupled to the prediction block, wherein the run encode block is configured to replace a first prediction residual in the first plurality of prediction residuals with a first escape value and replace a second prediction residual in the first plurality of prediction residuals with a first run length value when a first run of prediction residuals starting in the first pixel group and continuing into the second pixel group is detected; and an entropy encode block coupled to the run encode block, wherein the entropy encode block is configured to generate first compressed image data corresponding with the first pixel tile by entropy encoding a third prediction residual in the first plurality of prediction residuals, the first escape value, and the first run length value when the first run is detected.