Back to results
US 4,038,581 AGranted
Circuit for elimination of surface charge integration
AssigneeRCA Corporation
InventorsDenis Peter Dorsey, William E. Rodda
Life of this patent
Estimating the term…
Abstract
Circuit to apply an offset voltage to be added to a charge storage signal depositing a charge on a radially swept charge storage surface so that the charge storage signal is a minimum at the center of the surface and a maximum at the outer edges of the sweep. This reduces or eliminates the charge integration in the area where the sweep lines converge.
Claims1
The combination comprising:
- surface charge storage means for recording data by charging a surface;
- charge deposit means for charging said surface in response to signals to be stored;
- sweep means for radially positioning said charge deposit means from the center of the surface in response to a sweep signal;
- and
- control means for varying charge intensity as a function of the distance of the charge deposit means from the center of the surface,
- said control means comprising integrator means responsive to a blanking signal preceding each sweep signal for producing an output signal and adder means responsive to data signals and to said output signal.
3 more elements
Dependencies are inferred from the claim text.