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. 16, 2004
Filed:
Oct. 22, 2001
Peter Dominke, Bietigheim Bissingen, DE;
Wolfgang Pfeiffer, Grossbottwar, DE;
Werner Harter, Illingen, DE;
Thomas Lindenkreuz, Reutlingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A control unit, for controlling safety-critical applications, includes a microcomputer, a monitoring unit (check unit), and peripheral circuits (input/output), and in which, to improve the reliability of the error detection for such control units, and to expand the detection to additional error types, the monitoring unit includes a first apparatus, arrangement or structure for measuring the quiescent current of the microcomputer; at least one quiescent current handshake line for controlling the measurement of the quiescent current running between the first apparatus, arrangement or structure of the monitoring unit and the microcomputer; the monitoring unit including a second apparatus, arrangement or structure for applying a test data input signal to the microcomputer, for processing the test data input signal, and for comparing the corresponding test data output signal of the microcomputer to the corresponding test data output signal of the monitoring unit; and at least one test data signal transmission line running between the second apparatus, arrangement or structure of the monitoring unit and the microcomputer.