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:
Feb. 27, 2007
Filed:
Nov. 26, 2003
Henrik Icking, München, DE;
Manfred Mauthe, Grosshelfendorf, DE;
Henrik Icking, München, DE;
Manfred Mauthe, Grosshelfendorf, DE;
Infineon Technologies AG, Munich, DE;
Abstract
To output a digital signal in particular according to the LVDS (low voltage differential signalling) standard, a driver stage is supplied with a constant current and thus supplies the digital signal in the form of a current signal with defined current values. As a result of line capacitances of a transmission line, because of the current limited according to the standard the edge steepness and hence the maximum transmittable bit rate can deteriorate. According to the invention, therefore, at least essentially in synchronization with a triggering of the driver stage, at least one current increase signal is generated which via a capacitor causes an additional current increase in the output current of the driver stage. Preferably, the current increase signal via the respective capacitor is switched directly to an output of the driver stage. By using a capacitor, with very little expenditure a limited current pulse can be switched in a temporally targeted manner on the switching processes of the driver stage.