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:
Jul. 22, 2014
Filed:
Jul. 05, 2012
Dallas Blake DE Atley, San Francisco, CA (US);
Joshua DE Cesare, Campbell, CA (US);
Michael Smith, Sunnyvale, CA (US);
Jerry Hauck, Windermere, FL (US);
Jeffrey Bush, San Jose, CA (US);
Dallas Blake De Atley, San Francisco, CA (US);
Joshua de Cesare, Campbell, CA (US);
Michael Smith, Sunnyvale, CA (US);
Jerry Hauck, Windermere, FL (US);
Jeffrey Bush, San Jose, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
A method and apparatus for executing a first executable code image having a first version number into a memory of a device in an attempt to establish an operating environment of the device are described. The first executable code image retrieves a second version number from the second executable code image after successfully authenticating the second executable code image. If the first version number and the second version number do not satisfy a predetermined relationship, the second executable code image is prevented from being loaded by the first executable code image.