Koninklijke Philips Corporation N.V.

Gvbb Holdings S.a.r.l

Thomas Graen

Klaus Anderle

A method for controlling a scanning apparatus for scanning a continuously moved object includes seizing the actual momentary position of the moving object, and controlling the time instant or period in which image information is captured by the scanning devices in dependence of the actual momentary position of the object. The scanning apparatus in which the method is used includes a multiplicity of line scanning devices arranged adjacent to each other in the direction of the movement of the moved object. Each of the line scanning devices has a multiplicity of pixels that are arranged adjacent to each other in a direction across a path along which the object is moved. The pixels of the line scanning devices accumulate charges according to the amount of incident light. A controlling means is provided for transferring the charges accumulated in individual pixels to pixels in the adjacent line scanning device in synchronism with direction of the movement and the speed of the moving object. The object is illuminated or transilluminated by a light source.

Method for controlling a TDI-CCD image sensor

In a circuit arrangement for regenerating the black level of video signals during A/D conversion, in which a deviation of the black level of the digital video signals from a predetermined value influences the black level of the analog video signals, the scanning values obtained during the A/D conversion of the black level of the analog video signals are compared with the predetermined value. A ramp signal for tendency-compensating the deviations is superimposed on the analog video signals.

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Darmstadt, Germany

Thomas Graen