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. 09, 2014
Filed:
Aug. 20, 2008
Manfred Zinke, Aachen, DE;
Peter Fuhrmann, Aachen, DE;
Markus Baumeister, Munich, DE;
NXP B.V., Eindhoven, NL;
Abstract
The present invention relates to a clock supervision unit () and an electronic system clocked by at least one clock (c*) and using the clock supervision unit (). The clock supervision unit () analyzes the at least one clock (c*) based on a monitor clock (m*) provided together with the at least one clock (c*) or separately to the clock supervision unit (). The clock supervision unit () at least comprises an activity unit (), a deviation unit () and an auxiliary clock generator (). The auxiliary clock generator () outputs an auxiliary clock (a*). The activity unit () detects the presence of the monitor clock (m*) based on the auxiliary clock (a*) and the presence of the auxiliary clock (a*) based on the monitor clock (m*). The deviation unit () detects clock faults in the monitor clock (m*) based on the auxiliary clock (a*). With the clock supervision unit () according to the present invention, the at least one clock (c*) can be supervised in more detail and it is possible to react on different clock faults in the at least one clock c* with different error handling procedures, e.g. by initiating a shutdown of the devices controlled by the electronic system.