发明名称 Crosstalk cancellation in a multi-color CCD signal processor
摘要 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.
申请公布号 US6330081(B1) 申请公布日期 2001.12.11
申请号 US19980197355 申请日期 1998.11.20
申请人 AGFA CORPORATION 发明人 SCHOLTEN FRANK LYNN
分类号 H04N1/028;H04N1/409;H04N1/48;H04N1/58;(IPC1-7):H04N1/38 主分类号 H04N1/028
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