Video projection apparatus

Apparatus for producing a video signal having at least two color components, comprising:

• a source of said video signal;
• storing means for simultaneously storing said at least two color components at a first rate, said storing means including a plurality of memory means each adapted to store a respective one of said at least two color components, said plurality of memory means including a pair of first and second memory means for each of said color components, and in which each of said color components is alternately supplied to said first and second memory means of the respective pair thereof;
• and
• reading means for sequentially reading out said at least two color components from said storing means at a second rate which is sufficiently faster than said first rate so that said at least two color components are sequentially read out in a time not greater than the time required for simultaneously storing each of said at least two color components.

Apparatus for producing a video signal having at least two color components, comprising:

• a source of said video signal;
• storing means for simultaneously storing said at least two color components at a first rate, said storing means including a plurality of memory means each adapted to store a respective one of said at least two color components, with said plurality of memory means including first and second memory means, and said video signal being alternately supplied to said first and second memory means, and said storing means further includes first switch means for alternately supplying said video signal to said first and second memory means;
• and
• reading means for sequentially reading out said at least two color components from said storing means at a second rate which is sufficiently faster than said first rate so that said at least two color components are sequentially read out in a time not greater than the time required for simultaneously storing each of said at least two color components.

A video projecting apparatus for projecting a compound image onto a projection screen, comprising:

• p1 a cathode ray tube including a face plate with a plurality of color phosphor screens sequentially arranged thereon, and an electron gun for generating an electron beam to sequentially scan said phosphor screens as the beam is modulated by respective color components of a video signal;
• a source of said video signal;
• storing means for simultaneously storing said color components at a first rate;
• and
• reading means for sequentially transmitting said color components from said storing means to said cathode ray tube for modulating said electron beam as said beam scans the respective color phosphor screens, said color components being sequentially transmitted in a time not greater than the time within which said color components are simultaneously stored.

A video projecting apparatus for projecting a compound image onto a projection screen, comprising:

• a cathode ray tube including a face plate with a plurality of color phosphor screens sequentially arranged thereon, and an electron gun for generating an electron beam to sequentially scan said phosphor screens as the beam is modulated by respective color components of a video signal;
• a source of said video signal;
• storing means for simultaneously storing said color components at a first rate, said storing means including a plurality of memory means each adapted to store a respective one of said color components, and in which said plurality of memory means includes a pair of first and second memory means for each of said color components, and in which each color component is alternately supplied to said first and second memory means of the respective pair thereof during successive horizontal line scan periods;
• and
• reading means for sequentially transmitting said color components from said storing means to said cathode ray tube for modulating said electron beam as said beam scans the respective color phosphor screens, said color components being sequentially transmitted in a time not greater than the time within which said color components are simultaneously stored.