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:
Jul. 08, 2014

Filed:

Aug. 04, 2009
Applicants:

Hugues Lebrun, Coublevie, FR;

Thierry Kretz, Saint Jean de Moirans, FR;

Chantal Hordequin, Veurey Voroize, FR;

Inventors:

Hugues Lebrun, Coublevie, FR;

Thierry Kretz, Saint Jean de Moirans, FR;

Chantal Hordequin, Veurey Voroize, FR;

Assignee:

Thales, Neuilly sur Seine, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 19/00 (2006.01); G11C 19/18 (2006.01); G11C 19/28 (2006.01);
U.S. Cl.
CPC ...
G11C 19/28 (2013.01); G11C 19/184 (2013.01);
Abstract

A shift register, each stage thereof provided to drive a corresponding output line, includes an output transistor that drives the output line and an additional transistor of the same technology and of the same polarity as the output transistor. The additional transistor is connected in such a way as to be subject to bias conditions similar to the output transistor, such that the additional transistor's threshold voltage, identical at the start of life to that of the output transistor, drifts as quickly or more quickly as the threshold voltage of the output transistor. The additional transistor is used to adjust the precharging voltage of a gate of the output transistor to its conduction performance characteristics during the precharging and/or selection phase.


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