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:
Nov. 30, 2010
Filed:
Nov. 04, 2005
Rudolph Alexandre, Saint-Josse-ten-Noode, BE;
Vincent Charlier, Auderghem, BE;
Tiana Rahaga, Evere, BE;
Yves Vandersmissen, Brussels, BE;
Rudolph Alexandre, Saint-Josse-ten-Noode, BE;
Vincent Charlier, Auderghem, BE;
Tiana Rahaga, Evere, BE;
Yves Vandersmissen, Brussels, BE;
STMicroelectronics Belgium NV, Zaventem, BE;
Abstract
A code patching device is provided for use with a processor having a read-only memory which stores instruction code and a further memory for storing patch code. A plurality of patch address registers each store an address, in the read-only memory, at which a patch is to be performed. A comparator compares the address of the read-only memory that is being accessed by the processor with the addresses stored in the registers. A control unit selects between code from the read-only memory or patch code from the further memory depending on the comparison. The code patching device can replace, on-the-fly, erroneous lines of code from the read-only memory by corrected ones. During an initialization process the patch code is loaded into the further memory and the registers are loaded with the addresses which require patching.