Abstract: There is electrostatic coupling of the forward clocking signals used in a CCD imager of line transfer type to the underlying bulk semiconductor and then to the output charge sensing stage. Changes in forward clocking signal application during the line selection process in the image register tend to introduce transient disturbances leaving visible artifacts in television pictures reconstructed from the video signals generated from the CCD imager output signal samples. This tendency can be obviated in CCD imagers of line transfer type by introducing additional clocked delay to place the disturbances in the line retrace interval. The disturbances can then be removed from video signals by line retrace blanking.

Abstract: The respective pixel stages of an electro-optical transversal filter may be intimately associated with corresponding stages of a CCD shift register means in a monolithic structure on an integrated chip. The shift register means, which operates to forward a pre-selected one of a set of analog reference weights to each of the transversal filter pixel stages, permits the transversal filter to be used in an electro-optical correlation means having a very high effective computation rate.

Abstract: A photographic film recorder includes film-exposing apparatus having a laser light source for exposing the film, and a photographic film-developing apparatus. A film transport means transports the film at the same velocity through both the exposing apparatus and the developing apparatus, under control of a received film velocity signal. The time period each element of the film is in the developer varies inversely with film velocity. A plurality of transfer function look-up tables are provided for translating a received video density signal to a corresponding exposure signal for controlling the laser light source. Means responsive to the film velocity signal selects for use a transfer function look-up table which is appropriate for the time period each element of the film is in the developer.