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. 25, 2003
Filed:
Dec. 16, 1999
Applicant:
Inventor:
Wolfgang Pockrandt, Reichertshausen, DE;
Assignee:
Infineon Technologies AG, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/30 ;
U.S. Cl.
CPC ...
H04L 9/30 ;
Abstract
The system checks whether authorization exists for at least two data processing devices to exchange data with one another. In the preferred embodiment, both data processing devices are of identical design. Check data are simultaneously produced, in response to a trigger signal, in both data processing devices. The check data are compared with one another in the data processing device to which a control function has been allocated.