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:
Jun. 21, 2022
Filed:
Dec. 09, 2019
Amlogic (Shanghai) Co., Ltd., Shanghai, CN;
Zhi Zhou, Shanghai, CN;
Other;
Abstract
The invention comprises a playing memory management method, comprising: Step S, creating a contiguous memory area: Step S, dividing a contiguous first memory range from the memory area when digital rights management playing information is received; Step S, setting, by a secure operating system, an access permission for the first memory range; Step S, performing, by the secure operating system, a decoding operation in the first memory range until the decoding operation is completed; and Step S, clearing, by the secure operating system, data in the first memory range, releasing the access permission for the first memory range, and releasing the first memory range. The present invention has the beneficial effects that the memory sharing is realized by creating one memory area, setting the access permission during use and clearing data and releasing the access permission after use, so that the manufacturing cost is reduced.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile