Image transfer device

Claim 2

Apparatus for providing a permanent copy from a video image comprising: a cathode ray tube; a transport mechanism for moving a sensitized copy medium across the face of said cathode ray tube; position sensing means coupled to said transport mechanism to sense the position of said copy medium and provide an electrical signal indicative of said position; raster scanning signal generating circuits for generating an intensity control signal a vertical sweep signal, and a horizontal sweep signal; coupling circuit means connected between said signal generating circuits and said cathode ray tube to apply said intensity control signal and said horizontal sweep signal to said cathode ray tube; and variable time delay circuit means connected to said signal generating circuits and said cathode ray tube and responsive to said position indicative signal to shift said vertical sweep signal in time by amounts corresponding to different segments of the video image to be recorded on said copy medium, and to supply said shifted vertical sweep signal to said cathode ray tube so as to present the portion of said raster containing the selected video image segment at at least one desired position on said cathode ray tube.

Claim 3

Apparatus according to claim 1 further including signal limiting means connected between said time delay circuit means and said cathode ray tube to limit the magnitude of said verticAl sweep signal to provide a thin window display presenting only the selected segment of the video image.

Claim 4

Apparatus according to claim 2 further including blanking circuit means connected between said signal generating means and said cathode ray tube to blank said intensity control signal during the time in which said vertical sweep signal is being limited.

Claim 5

Apparatus according to claim 1 further comprising a fiber optics bundle between the face of said cathode ray tube and the sensitized copy medium.

Claim 6

A computer terminal comprising: a memory for storing information for a video display; a clock for providing timing signals; video display signal generating circuits connected to said clock and said memory including a vertical sweep generator for providing a vertical sweep signal a horizontal sweep generator for providing a horizontal sweep signal, and character generation circuits for providing a synchronized intensity control signal according to the video display stored in said memory; a video display cathode ray tube; coupling circuit means connected between said signal generating circuits and said video display cathode ray tube to apply said vertical sweep signal, said horizontal sweep signal and said intensity control signal to said video display cathode ray tube; a second cathode ray tube; a transport mechanism for moving a sensitized copy medium across the face of said second cathode ray tube; position sensing means coupled to said transport mechanism to sense the position of said copy medium and provide an electrical signal indicative of said position; coupling circuit means connected between said signal generating circuits and said second cathode ray tube to apply said intensity control signal and said horizontal sweep signal to said second cathode ray tube; and variable time delay circuit means connected to said signal generating circuits and said second cathode ray tube and responsive to said position indicating signal to shift said vertical sweep signal in time by amounts corresponding to different segments of the video image to be recorded on said copy medium, and to apply said shifted vertical sweep signal to said second cathode ray tube so as to present the portion of said raster containing the selected video image segment at at least one desired position on said cathode ray tube.

Claim 7

A computer terminal comprising: a memory for storing information for a video display; a clock for providing timing signals; video display signal generating circuits connected to said clock and said memory including a vertical sweep generator for providing a vertical sweep signal a horizontal sweep generator for providing a horizontal sweep signal, and character generation circuits for providing a synchronized intensity control signal according to the video display stored in said memory; a video display cathode ray tube; coupling circuit means connected between said signal generating circuits and said video display cathode ray tube to apply said vertical sweep signal, said horizontal sweep signal and said intensity control signal to said video display cathode ray tube; a second cathode ray tube; a transport mechanism for moving a sensitized copy medium across the face of said second cathode ray tube; position sensing means coupled to said transport mechanism to sense the position of said copy medium and provide an electrical signal indicative of said position; coupling circuit means connected between said signal generating circuits and said second cathode ray tube to apply said intensity control signal and said horizontal sweep signal to said second cathode ray tube; and variable time delay circuit means connected to said signal generating circuits and said second cathode ray tube and responsive to said position indicating signal to shift said vertical sweep signal in time by amounts corresponding to different segments of the video image to be recorded on said copy medium, and to apply said shifted vertical sweep signal to said second cathode ray tube so as to present the portion of said raster containing the selected video image segment at at least one desired position on said cathode ray tube.