Patent · US Active

3D graphics system using encrypted texture tiles

US9558373B2 · kind B2 · utility

0Cited by

3References

20Claims

0Family size

Assignee

NXP USA, Inc. · US

Inventors

Michael Andreas Staudenmaier · Munich, DE
Juergen Frank · Kirchberg, DE
Robert Krutsch · Munich, DE

Key dates

Filing date	Dec 8, 2014
Grant date	Jan 31, 2017
Priority date	—
Expiry date	Jun 1, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH04L9/14
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A 3D graphics system uses encryption keys to decrypt received and stored texture tiles of a texture in accordance with received and stored texture tile status data which indicates whether a texture tiles is encrypted or not and which one of the encryption keys is used. The decrypted texture tiles are rendered and at least a plurality of the rendered tiles is encrypted. The encrypted rendered tiles are stored in a frame buffer. Buffer tile status data is stored which indicates whether a rendered tile is encrypted or not before storage in the frame buffer, and which one of the encryption keys has been used. The encrypted rendered tiles stored in the frame buffer are decrypted in accordance with the buffer tile status data.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.