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:
Dec. 11, 2001
Filed:
Nov. 20, 1998
Frank Lynn Scholten, Livingston, NJ (US);
Agfa Corporation, Wilmington, MA (US);
Abstract
A method and apparatus are provided for canceling crosstalk noise arising on signal lines output from an image sensor. More specifically, the crosstalk noise is canceled by a current mirror that is coupled to the signal line. The current mirror adjusts the voltage level on the signal line by drawing a current therefrom that is proportional to the amount and polarity of the crosstalk noise. The amount of crosstalk noise is determined by an amount of coupling within an A/D converter coupled to the signal lines. The current mirrors can further adjust the voltage on the signal line by drawing a current therefrom that is proportional to crosstalk arising due to a voltage level on another signal line. Such a current mirror allows pixel data to be conveyed to the A/D converter, via the signal lines, without imparting aberrations due to crosstalk noise.