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:
Aug. 22, 2023
Filed:
Jul. 30, 2021
Imagination Technologies Limited, Kings Langley, GB;
Kenneth Rovers, St. Albans, GB;
Imagination Technologies Limited, Kings Langley, GB;
Abstract
A binary logic circuit for performing an interpolation calculation between two endpoint values Eand Eusing a weighting index i for generating an interpolated result P, the values Eand Ebeing formed from Adaptive Scalable Texture Compression (ASTC) colour endpoint values Cand Crespectively, the colour endpoint values Cand Cbeing low-dynamic range (LDR) or high dynamic range (HDR) values, the circuit comprising: an interpolation unit configured to perform an interpolation between the colour endpoint values Cand Cusing the weighting index i to generate a first intermediate interpolated result C; combinational logic circuitry configured to receive the interpolated result Cand to perform one or more logical processing operations to calculate the interpolated result P according to the equation: (1) P=└(C<<8)+C+32)/64┘ when the interpolated result is not to be compatible with an sRGB colour space and the colour endpoint values are LDR values; (2) P=└(C<<8)+128.64+32)/64┘ when the interpolated result is to be compatible with an sRGB colour space and the colour endpoint values are LDR values; and (3) P=(C+2)>>2 when the colour endpoint values are HDR values.