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:
Dec. 17, 2013
Filed:
Jul. 20, 2006
Martin Langhammer, Salisbury, GB;
James G. Schleicher, Ii, Los Gatos, CA (US);
Martin Langhammer, Salisbury, GB;
James G. Schleicher, II, Los Gatos, CA (US);
Altera Corporation, San Jose, CA (US);
Abstract
Implementing a key and a protection circuit in a configurable device. A soft key associated with a protection circuit is combined with a user's electronic design in generating configuration data for download onto the configurable device. The placement and routing of the soft key is pseudo-randomly arranged with respect to the user's electronic design such that its placement and routing on the configurable device is substantially different for binary configuration data that is generated. Hiding the soft key and its connections to the protection circuit and assisting in protecting user electronic designs is achieved.