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.:

US 10430577 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 01, 2019

Filed:

Dec. 19, 2014
Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

James Michael Magee, Orlando, FL (US);

Russell A. Blaine, San Carlos, CA (US);

Vishal Patel, Sunnyvale, CA (US);

Daniel Andreas Steffen, San Francisco, CA (US);

Kevin James Van Vechten, San Francisco, CA (US);

Jacques Anthony Vidrine, San Francisco, CA (US);

Kelly B. Yancey, Cupertino, CA (US);

Jainam A. Shah, San Jose, CA (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/44 (2013.01); G06F 9/50 (2006.01); G06F 21/62 (2013.01);
U.S. Cl.
CPC ...
G06F 21/44 (2013.01); G06F 9/5005 (2013.01); G06F 21/62 (2013.01);
Abstract

A method and an apparatus to dynamically distribute privileges among a plurality of processes are described. Each process may have attributes including a privilege to control access to processing resources. A first process may be running with a first privilege prohibited from access to a processing resource. A second process may be running with a second privilege allowed to access the processing resource. The first process may receive a request from the second process to perform a data processing task for the second process. In response, the second privilege may be dynamically transferred to the first process to allow the first process to access the processing resource. The first process may perform operations for the data processing task with the second privilege transferred from the second process.


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