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:
Mar. 20, 2012
Filed:
Nov. 15, 2007
Christophe Gogniat, Chavannes-près-Renens, CH;
Michael John Hill, Coppet, CH;
Christophe Gogniat, Chavannes-près-Renens, CH;
Michael John Hill, Coppet, CH;
Nagravision S.A., Cheseaux-sur-Lausanne, CH;
Abstract
The aim of the present invention is to propose a method and a device with the aim of avoiding problems which could ensue following the de-synchronization of a program counter during the execution of a program. This aim is achieved by a method for controlling the execution of a program involving separating the program into a number of blocks of instructions and adding an input control section and an output control section to each block. The control sections have conditions for entry to the block and conditions for exit from the block. This can be used to check the validity of the execution of a program by verifying the execution history of the program. Action can be taken in the case that any anomaly is found in the program execution compared to the expected execution.