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:
Apr. 21, 2020
Filed:
Nov. 04, 2016
Qualcomm Incorporated, San Diego, CA (US);
Thomas Zeng, San Diego, CA (US);
Azzedine Touzni, Carlsbad, CA (US);
Brian Kelley, San Diego, CA (US);
Qualcomm Incorporated, San Diego, CA (US);
Abstract
Exemplary features pertain to establishing an Exclusive Execution Environment domain that Trusted Execution Zone components are forbidden to access. In one example, a system-on-a-chip (SoC) is equipped with a Reduced Instruction Set Computing (RISC) processor along with an application DSP (ADSP) and/or Graphics Processing Unit (GPU), where the ADSP and/or GPU is configured to provide and enforce the Exclusive Execution Environment domain. By forbidding access to Trusted Execution Zone components, security can be enhanced, especially within minimally-equipped devices that do not have the resources to implement a full Trust Execution Environment, such as low-power devices associated with the Internet of Things (IoT). Among other features, the systems and methods described herein allow application clients to build exclusive execution environments and claim exclusive access to buffer objects and hardware resource groups. Method and apparatus examples are provided.