Double-scanning non-interlace television receiver

A television receiver supplied with an interlace video signal for converting said interlace video signal into a non-interlace video signal for display, comprising:

• a sync-signal separating circuit receiving said video signal and separating therefrom horizontal and vertical sync-signals;
• controller means responsive to said horizontal and vertical sync-signals for producing therefrom change-over control signals;
• signal converter means receiving said interlace video signal for conversion into a non-interlace video signal under the control of said change-over control signals;
• a three-dimensional filter receiving said non-interlace video signal for filtering out vertical and horizontal high-frequencies occurring simultaneously in said non-interlace video signal;
• and
• television display means receiving said filtered non-interlace video signal and including a scan deflection circuit responsive to said separated horizontal and vertical sync-signals for displaying said filtered non-interlace video signal under control of said deflection circuit.

A double-scanning television receiver supplied with an interlace video signal for converting said interlace video signal into a non-interlace video signal, comprising:

• a sync-signal separating circuit receiving said interlace video signal and separating therefrom horizontal and vertical sync-signal;
• a compensated delay line connected to an output of said television receiver for time delaying said interlace video signal;
• a three-dimensional filter connected to the output of said television receiver for filtering vertical and horizontal high-frequency band frequencies occurring in said interlace video signal;
• and
• a double-scanning television display including a scan deflection circuit responsive to said horizontal and vertical sync-signals for displaying said time-delayed interlace video signal by a first scanning cathode and for displaying an output signal from said three-dimensional filter by a second scanning cathode, said first and second scanning cathodes being controlled by said deflection circuit.