A video camera includes a mode selecting switch (74) which selectively interconnects one of an external timing signal from a tachometer and signal conditionner (30) and master timing signals from a raster-scan synchronization generator (70) with a sensor line shift timing generator (76). In a time delay and integration mode, the sensor line shift timing generator causes the CCD arrays of an image section and storage section to shift pixel values down the CCD arrays at a rate commensurate with the external timing signal. As a spot of light emanating from a portion of an object moving through an examination region moves along the CCD array, a corresponding pixel charge is shifted through the CCD array at the same speed such that the same pixel charge integrates light from the same spot as it moves the entire length of the CCD array. In a raster-scan mode, the mode selecting switch (74) connects master timing signals from the raster scan sync generator (70) to the sensor line shift timing generator (76) which generates conventional raster-scan timing signals. An output register timing generator (78) generates timing signals under control of an oscillator (80) for output registers such that an output signal is produced that is compatible with a television signal standard. Video processing channels and a video synchronization circuit process the output signals to produce a composite video signal.
申请公布号
DE68908851(D1)
申请公布日期
1993.10.07
申请号
DE1989608851
申请日期
1989.09.22
申请人
PICKER INTERNATIONAL, INC., HIGHLAND HEIGHTS, OHIO, US
发明人
HUNT, ROBERT P., PALO ALTO CALIFORNIA 94301, US;GILBLOM, DAVID L., LOS ALTOS CALIFORNIA 94022, US