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:
Oct. 23, 2001
Filed:
Sep. 23, 1997
Michael Ulm, Alteglofsheim, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A control unit, in particular for a device provided in a motor vehicle, has a computer, a first volatile data memory and a second nonvolatile data memory connected to a temperature sensor. During operation, variable data are transmitted from the first to the second data memory. Information regarding the temperature of the nonvolatile data memory is supplied by the temperature sensor to the computer. Data from the volatile data memory are copied to the nonvolatile data memory only when the temperature that has been signaled falls below a predetermined value. Data are read from the nonvolatile data memory up to an upper temperature limit which lies above the predetermined value.