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. 13, 2007
Filed:
Mar. 30, 2000
Thomas Bellingrath, Nuremberg, DE;
Michael Hackner, Erlangen, DE;
Thomas Bellingrath, Nuremberg, DE;
Michael Hackner, Erlangen, DE;
Abstract
A circuit for processing an analog signal having a time sequence of discrete signal levels, each of which lies in a time interval and represents an information-bearing segment of the interval while the rest of the time interval is a non-information-bearing segment, comprises a transistor () in emitter-follower or source-follower configuration, a high emitter or source resistance or, instead, a high-ohm constant current source (), and a device () for applying a voltage supply, as well as a switch () which is connected between the emitter and a reference potential () to prevent a current from flowing via the high-ohm resistance or the high-ohm voltage source () for charge reversal of an output capacitance () of the circuit in one direction, whereas for charge reversal in the other direction the dynamic current boosting effect of the transistor () is exploited. This results in a fast emitter-follower or source-follower circuit which is particularly suitable as the output stage for image sensors.