Method and apparatus for transmitting images to a viewing screen

Details Method and apparatus for transmitting images to a viewing screen Method and apparatus for transmitting images to a viewing screen

1983-10-21

1986-03-11

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358241, 3151693, 340781, H04N 314

Patent

active

045757658

ABSTRACT:
Method and apparatus for the transmission of images to a screen, wherein luminescence centers of the screen are excited by way of electron beams controlled to suit the image to be transmitted. The electrons are emitted by cathode tips of a thin-film field-effect cathode. The cathode tips are driven individually, the flow of electrons emitted from each cathode tip corresponding to the grey tone for each image point. The cathode tips may be driven by mutually intersecting conducting strips to which are fed successive trigger pulses. In another version, the cathode tips are driven by the use of charge transfer systems, which enable a still picture to be produced by concurrently driving the cathode tips in their entirety.

REFERENCES:
patent: 3855499 (1974-12-01), Yamada et al.
patent: 4459514 (1984-07-01), Morimoto et al.

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