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.

Date of Patent:
Jun. 08, 2010

Filed:

Oct. 30, 2007
Applicants:

Rainer Goettfert, Taufkirchen, DE;

Stefan Rueping, Lengdorf, DE;

Inventors:

Rainer Goettfert, Taufkirchen, DE;

Stefan Rueping, Lengdorf, DE;

Assignee:

Infineon Technologies AG, Neubiberg, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

Feedback shift register control circuit including a checking circuit having an input being coupled to a seed input of a feedback shift register or to an internal node of the feedback shift register, the checking circuit configured to be responsive to a signal at the input indicating that the feedback shift register is in a not-allowed state, or is going to assume a not-allowed state to output an exception signal; and a gate circuit being coupled to the seed input or the feedback shift register and configured to be responsive to the exception signal to change the state of the feedback shift register or seed the feedback shift register such that the feedback shift register assumes an allowed state.


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