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. 11, 2003
Filed:
Feb. 18, 2000
Gerald Brinks, Niedersonthofen, DE;
Thomas Ohgke, Kircheim, DE;
Günther Schuster, Gammelshausen, DE;
Temic Telefunken microelectronic GmbH, Nuremberg, DE;
Abstract
The invention relates to an offset regulation device for a sensor module and a method for realizing such an offset regulation, particularly for acceleration sensors and pressure sensors. The disadvantage of currently used offset regulation devices is that impermissible offset drifts or other errors are not recognized and are camouflaged by the offset regulation device. As a result, the measuring values can be distorted. The offset regulation device according to the invention comprises a monitoring device that is integrated into the offset regulation device and which recognizes and indicates such errors. This monitoring device comprises an analog or digital adder, which detects the deviation of the actual value from the desired value or values depending thereon. If the regulation takes too long because the deviation is too large and the offset is therefore not permissible, then a maximum or minimum value is reached during the adding up in the adder. Once a limit value is reached, an error message is generated and indicated.