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:
Oct. 06, 2026
Filed:
Oct. 11, 2024
Imagination Technologies Limited, Kings Langley, GB;
Xile Yang, Rickmansworth, GB;
Imagination Technologies Limited, Kings Langley, GB;
Abstract
A method of performing lossy compression on a block of image data in accordance with a multi-level difference table determines an origin value for the block of image data, and determines a level within the multi-level difference table for the block of image data, by determining a maximum difference between the determined origin value and any one of image element values in the block of image data and selecting from the multi-level difference table the level whose largest entry most closely represents the determined maximum difference. For each image element value in the block, one of the entries at the determined level within the multi-level difference table is selected, and a compressed block of data for the block of image data is formed, the compressed block of data including (i) data representing the determined origin value, (ii) an indication of the determined level, and (iii) for each image element value in the block of image data, an indication of the selected entry for that image element value.